bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1 | /* This is the Linux kernel elf-loading code, ported into user space */ |
Peter Maydell | d39594e | 2016-01-26 18:17:02 +0000 | [diff] [blame] | 2 | #include "qemu/osdep.h" |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 3 | #include <sys/param.h> |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 4 | |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 5 | #include <sys/mman.h> |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 6 | #include <sys/resource.h> |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 7 | |
bellard | 3ef693a | 2003-03-23 20:17:16 +0000 | [diff] [blame] | 8 | #include "qemu.h" |
Paolo Bonzini | 76cad71 | 2012-10-24 11:12:21 +0200 | [diff] [blame] | 9 | #include "disas/disas.h" |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 10 | |
malc | e58ffeb | 2009-01-14 18:39:49 +0000 | [diff] [blame] | 11 | #ifdef _ARCH_PPC64 |
malc | a6cc84f | 2008-08-20 22:39:28 +0000 | [diff] [blame] | 12 | #undef ARCH_DLINFO |
| 13 | #undef ELF_PLATFORM |
| 14 | #undef ELF_HWCAP |
Peter Maydell | ad6919d | 2014-05-02 14:45:15 +0100 | [diff] [blame] | 15 | #undef ELF_HWCAP2 |
malc | a6cc84f | 2008-08-20 22:39:28 +0000 | [diff] [blame] | 16 | #undef ELF_CLASS |
| 17 | #undef ELF_DATA |
| 18 | #undef ELF_ARCH |
| 19 | #endif |
| 20 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 21 | #define ELF_OSABI ELFOSABI_SYSV |
| 22 | |
blueswir1 | cb33da5 | 2007-10-09 16:34:29 +0000 | [diff] [blame] | 23 | /* from personality.h */ |
| 24 | |
| 25 | /* |
| 26 | * Flags for bug emulation. |
| 27 | * |
| 28 | * These occupy the top three bytes. |
| 29 | */ |
| 30 | enum { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 31 | ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization of VA space */ |
| 32 | FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs point to |
| 33 | descriptors (signal handling) */ |
| 34 | MMAP_PAGE_ZERO = 0x0100000, |
| 35 | ADDR_COMPAT_LAYOUT = 0x0200000, |
| 36 | READ_IMPLIES_EXEC = 0x0400000, |
| 37 | ADDR_LIMIT_32BIT = 0x0800000, |
| 38 | SHORT_INODE = 0x1000000, |
| 39 | WHOLE_SECONDS = 0x2000000, |
| 40 | STICKY_TIMEOUTS = 0x4000000, |
| 41 | ADDR_LIMIT_3GB = 0x8000000, |
blueswir1 | cb33da5 | 2007-10-09 16:34:29 +0000 | [diff] [blame] | 42 | }; |
| 43 | |
| 44 | /* |
| 45 | * Personality types. |
| 46 | * |
| 47 | * These go in the low byte. Avoid using the top bit, it will |
| 48 | * conflict with error returns. |
| 49 | */ |
| 50 | enum { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 51 | PER_LINUX = 0x0000, |
| 52 | PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT, |
| 53 | PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS, |
| 54 | PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, |
| 55 | PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE, |
| 56 | PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS | SHORT_INODE, |
| 57 | PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS, |
| 58 | PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE, |
| 59 | PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS, |
| 60 | PER_BSD = 0x0006, |
| 61 | PER_SUNOS = 0x0006 | STICKY_TIMEOUTS, |
| 62 | PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE, |
| 63 | PER_LINUX32 = 0x0008, |
| 64 | PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB, |
| 65 | PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */ |
| 66 | PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */ |
| 67 | PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */ |
| 68 | PER_RISCOS = 0x000c, |
| 69 | PER_SOLARIS = 0x000d | STICKY_TIMEOUTS, |
| 70 | PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, |
| 71 | PER_OSF4 = 0x000f, /* OSF/1 v4 */ |
| 72 | PER_HPUX = 0x0010, |
| 73 | PER_MASK = 0x00ff, |
blueswir1 | cb33da5 | 2007-10-09 16:34:29 +0000 | [diff] [blame] | 74 | }; |
| 75 | |
| 76 | /* |
| 77 | * Return the base personality without flags. |
| 78 | */ |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 79 | #define personality(pers) (pers & PER_MASK) |
blueswir1 | cb33da5 | 2007-10-09 16:34:29 +0000 | [diff] [blame] | 80 | |
bellard | 83fb7ad | 2004-07-05 21:25:26 +0000 | [diff] [blame] | 81 | /* this flag is uneffective under linux too, should be deleted */ |
| 82 | #ifndef MAP_DENYWRITE |
| 83 | #define MAP_DENYWRITE 0 |
| 84 | #endif |
| 85 | |
| 86 | /* should probably go in elf.h */ |
| 87 | #ifndef ELIBBAD |
| 88 | #define ELIBBAD 80 |
| 89 | #endif |
| 90 | |
Richard Henderson | 2849023 | 2010-07-27 10:25:31 -0700 | [diff] [blame] | 91 | #ifdef TARGET_WORDS_BIGENDIAN |
| 92 | #define ELF_DATA ELFDATA2MSB |
| 93 | #else |
| 94 | #define ELF_DATA ELFDATA2LSB |
| 95 | #endif |
| 96 | |
Paolo Bonzini | a29f998 | 2013-04-17 16:26:37 +0200 | [diff] [blame] | 97 | #ifdef TARGET_ABI_MIPSN32 |
Paolo Bonzini | 918fc54 | 2013-04-17 16:26:42 +0200 | [diff] [blame] | 98 | typedef abi_ullong target_elf_greg_t; |
| 99 | #define tswapreg(ptr) tswap64(ptr) |
Paolo Bonzini | a29f998 | 2013-04-17 16:26:37 +0200 | [diff] [blame] | 100 | #else |
| 101 | typedef abi_ulong target_elf_greg_t; |
| 102 | #define tswapreg(ptr) tswapal(ptr) |
| 103 | #endif |
| 104 | |
Nathan Froyd | 21e807f | 2009-12-11 09:04:46 -0800 | [diff] [blame] | 105 | #ifdef USE_UID16 |
Paolo Bonzini | 1ddd592 | 2013-04-17 16:26:39 +0200 | [diff] [blame] | 106 | typedef abi_ushort target_uid_t; |
| 107 | typedef abi_ushort target_gid_t; |
Nathan Froyd | 21e807f | 2009-12-11 09:04:46 -0800 | [diff] [blame] | 108 | #else |
Paolo Bonzini | f8fd4fc | 2013-04-17 16:26:40 +0200 | [diff] [blame] | 109 | typedef abi_uint target_uid_t; |
| 110 | typedef abi_uint target_gid_t; |
Nathan Froyd | 21e807f | 2009-12-11 09:04:46 -0800 | [diff] [blame] | 111 | #endif |
Paolo Bonzini | f8fd4fc | 2013-04-17 16:26:40 +0200 | [diff] [blame] | 112 | typedef abi_int target_pid_t; |
Nathan Froyd | 21e807f | 2009-12-11 09:04:46 -0800 | [diff] [blame] | 113 | |
bellard | 30ac07d | 2003-04-07 21:33:03 +0000 | [diff] [blame] | 114 | #ifdef TARGET_I386 |
| 115 | |
bellard | 15338fd | 2005-11-26 11:41:16 +0000 | [diff] [blame] | 116 | #define ELF_PLATFORM get_elf_platform() |
| 117 | |
| 118 | static const char *get_elf_platform(void) |
| 119 | { |
| 120 | static char elf_platform[] = "i386"; |
Andreas Färber | a2247f8 | 2013-06-09 19:47:04 +0200 | [diff] [blame] | 121 | int family = object_property_get_int(OBJECT(thread_cpu), "family", NULL); |
bellard | 15338fd | 2005-11-26 11:41:16 +0000 | [diff] [blame] | 122 | if (family > 6) |
| 123 | family = 6; |
| 124 | if (family >= 3) |
| 125 | elf_platform[1] = '0' + family; |
| 126 | return elf_platform; |
| 127 | } |
| 128 | |
| 129 | #define ELF_HWCAP get_elf_hwcap() |
| 130 | |
| 131 | static uint32_t get_elf_hwcap(void) |
| 132 | { |
Andreas Färber | a2247f8 | 2013-06-09 19:47:04 +0200 | [diff] [blame] | 133 | X86CPU *cpu = X86_CPU(thread_cpu); |
| 134 | |
| 135 | return cpu->env.features[FEAT_1_EDX]; |
bellard | 15338fd | 2005-11-26 11:41:16 +0000 | [diff] [blame] | 136 | } |
| 137 | |
j_mayer | 84409dd | 2007-04-06 08:56:50 +0000 | [diff] [blame] | 138 | #ifdef TARGET_X86_64 |
| 139 | #define ELF_START_MMAP 0x2aaaaab000ULL |
j_mayer | 84409dd | 2007-04-06 08:56:50 +0000 | [diff] [blame] | 140 | |
| 141 | #define ELF_CLASS ELFCLASS64 |
j_mayer | 84409dd | 2007-04-06 08:56:50 +0000 | [diff] [blame] | 142 | #define ELF_ARCH EM_X86_64 |
| 143 | |
| 144 | static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) |
| 145 | { |
| 146 | regs->rax = 0; |
| 147 | regs->rsp = infop->start_stack; |
| 148 | regs->rip = infop->entry; |
| 149 | } |
| 150 | |
Mika Westerberg | 9edc5d7 | 2009-04-07 09:57:59 +0300 | [diff] [blame] | 151 | #define ELF_NREG 27 |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 152 | typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
Mika Westerberg | 9edc5d7 | 2009-04-07 09:57:59 +0300 | [diff] [blame] | 153 | |
| 154 | /* |
| 155 | * Note that ELF_NREG should be 29 as there should be place for |
| 156 | * TRAPNO and ERR "registers" as well but linux doesn't dump |
| 157 | * those. |
| 158 | * |
| 159 | * See linux kernel: arch/x86/include/asm/elf.h |
| 160 | */ |
Andreas Färber | 0539024 | 2012-02-25 03:37:53 +0100 | [diff] [blame] | 161 | static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUX86State *env) |
Mika Westerberg | 9edc5d7 | 2009-04-07 09:57:59 +0300 | [diff] [blame] | 162 | { |
| 163 | (*regs)[0] = env->regs[15]; |
| 164 | (*regs)[1] = env->regs[14]; |
| 165 | (*regs)[2] = env->regs[13]; |
| 166 | (*regs)[3] = env->regs[12]; |
| 167 | (*regs)[4] = env->regs[R_EBP]; |
| 168 | (*regs)[5] = env->regs[R_EBX]; |
| 169 | (*regs)[6] = env->regs[11]; |
| 170 | (*regs)[7] = env->regs[10]; |
| 171 | (*regs)[8] = env->regs[9]; |
| 172 | (*regs)[9] = env->regs[8]; |
| 173 | (*regs)[10] = env->regs[R_EAX]; |
| 174 | (*regs)[11] = env->regs[R_ECX]; |
| 175 | (*regs)[12] = env->regs[R_EDX]; |
| 176 | (*regs)[13] = env->regs[R_ESI]; |
| 177 | (*regs)[14] = env->regs[R_EDI]; |
| 178 | (*regs)[15] = env->regs[R_EAX]; /* XXX */ |
| 179 | (*regs)[16] = env->eip; |
| 180 | (*regs)[17] = env->segs[R_CS].selector & 0xffff; |
| 181 | (*regs)[18] = env->eflags; |
| 182 | (*regs)[19] = env->regs[R_ESP]; |
| 183 | (*regs)[20] = env->segs[R_SS].selector & 0xffff; |
| 184 | (*regs)[21] = env->segs[R_FS].selector & 0xffff; |
| 185 | (*regs)[22] = env->segs[R_GS].selector & 0xffff; |
| 186 | (*regs)[23] = env->segs[R_DS].selector & 0xffff; |
| 187 | (*regs)[24] = env->segs[R_ES].selector & 0xffff; |
| 188 | (*regs)[25] = env->segs[R_FS].selector & 0xffff; |
| 189 | (*regs)[26] = env->segs[R_GS].selector & 0xffff; |
| 190 | } |
| 191 | |
j_mayer | 84409dd | 2007-04-06 08:56:50 +0000 | [diff] [blame] | 192 | #else |
| 193 | |
bellard | 30ac07d | 2003-04-07 21:33:03 +0000 | [diff] [blame] | 194 | #define ELF_START_MMAP 0x80000000 |
| 195 | |
bellard | 30ac07d | 2003-04-07 21:33:03 +0000 | [diff] [blame] | 196 | /* |
| 197 | * This is used to ensure we don't load something for the wrong architecture. |
| 198 | */ |
| 199 | #define elf_check_arch(x) ( ((x) == EM_386) || ((x) == EM_486) ) |
| 200 | |
| 201 | /* |
| 202 | * These are used to set parameters in the core dumps. |
| 203 | */ |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 204 | #define ELF_CLASS ELFCLASS32 |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 205 | #define ELF_ARCH EM_386 |
bellard | 30ac07d | 2003-04-07 21:33:03 +0000 | [diff] [blame] | 206 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 207 | static inline void init_thread(struct target_pt_regs *regs, |
| 208 | struct image_info *infop) |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 209 | { |
| 210 | regs->esp = infop->start_stack; |
| 211 | regs->eip = infop->entry; |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 212 | |
| 213 | /* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program |
| 214 | starts %edx contains a pointer to a function which might be |
| 215 | registered using `atexit'. This provides a mean for the |
| 216 | dynamic linker to call DT_FINI functions for shared libraries |
| 217 | that have been loaded before the code runs. |
| 218 | |
| 219 | A value of 0 tells we have no such handler. */ |
| 220 | regs->edx = 0; |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 221 | } |
Mika Westerberg | 9edc5d7 | 2009-04-07 09:57:59 +0300 | [diff] [blame] | 222 | |
Mika Westerberg | 9edc5d7 | 2009-04-07 09:57:59 +0300 | [diff] [blame] | 223 | #define ELF_NREG 17 |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 224 | typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
Mika Westerberg | 9edc5d7 | 2009-04-07 09:57:59 +0300 | [diff] [blame] | 225 | |
| 226 | /* |
| 227 | * Note that ELF_NREG should be 19 as there should be place for |
| 228 | * TRAPNO and ERR "registers" as well but linux doesn't dump |
| 229 | * those. |
| 230 | * |
| 231 | * See linux kernel: arch/x86/include/asm/elf.h |
| 232 | */ |
Andreas Färber | 0539024 | 2012-02-25 03:37:53 +0100 | [diff] [blame] | 233 | static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUX86State *env) |
Mika Westerberg | 9edc5d7 | 2009-04-07 09:57:59 +0300 | [diff] [blame] | 234 | { |
| 235 | (*regs)[0] = env->regs[R_EBX]; |
| 236 | (*regs)[1] = env->regs[R_ECX]; |
| 237 | (*regs)[2] = env->regs[R_EDX]; |
| 238 | (*regs)[3] = env->regs[R_ESI]; |
| 239 | (*regs)[4] = env->regs[R_EDI]; |
| 240 | (*regs)[5] = env->regs[R_EBP]; |
| 241 | (*regs)[6] = env->regs[R_EAX]; |
| 242 | (*regs)[7] = env->segs[R_DS].selector & 0xffff; |
| 243 | (*regs)[8] = env->segs[R_ES].selector & 0xffff; |
| 244 | (*regs)[9] = env->segs[R_FS].selector & 0xffff; |
| 245 | (*regs)[10] = env->segs[R_GS].selector & 0xffff; |
| 246 | (*regs)[11] = env->regs[R_EAX]; /* XXX */ |
| 247 | (*regs)[12] = env->eip; |
| 248 | (*regs)[13] = env->segs[R_CS].selector & 0xffff; |
| 249 | (*regs)[14] = env->eflags; |
| 250 | (*regs)[15] = env->regs[R_ESP]; |
| 251 | (*regs)[16] = env->segs[R_SS].selector & 0xffff; |
| 252 | } |
j_mayer | 84409dd | 2007-04-06 08:56:50 +0000 | [diff] [blame] | 253 | #endif |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 254 | |
Mika Westerberg | 9edc5d7 | 2009-04-07 09:57:59 +0300 | [diff] [blame] | 255 | #define USE_ELF_CORE_DUMP |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 256 | #define ELF_EXEC_PAGESIZE 4096 |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 257 | |
| 258 | #endif |
| 259 | |
| 260 | #ifdef TARGET_ARM |
| 261 | |
Peter Maydell | 24e76ff | 2014-05-02 14:45:14 +0100 | [diff] [blame] | 262 | #ifndef TARGET_AARCH64 |
| 263 | /* 32 bit ARM definitions */ |
| 264 | |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 265 | #define ELF_START_MMAP 0x80000000 |
| 266 | |
Peter Crosthwaite | b597c3f | 2015-05-10 23:29:25 -0700 | [diff] [blame] | 267 | #define ELF_ARCH EM_ARM |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 268 | #define ELF_CLASS ELFCLASS32 |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 269 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 270 | static inline void init_thread(struct target_pt_regs *regs, |
| 271 | struct image_info *infop) |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 272 | { |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 273 | abi_long stack = infop->start_stack; |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 274 | memset(regs, 0, sizeof(*regs)); |
Alexander Graf | 99033ca | 2013-09-03 20:12:21 +0100 | [diff] [blame] | 275 | |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 276 | regs->ARM_cpsr = 0x10; |
pbrook | 0240ded | 2006-02-04 19:30:51 +0000 | [diff] [blame] | 277 | if (infop->entry & 1) |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 278 | regs->ARM_cpsr |= CPSR_T; |
pbrook | 0240ded | 2006-02-04 19:30:51 +0000 | [diff] [blame] | 279 | regs->ARM_pc = infop->entry & 0xfffffffe; |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 280 | regs->ARM_sp = infop->start_stack; |
bellard | 2f61969 | 2007-11-16 10:46:05 +0000 | [diff] [blame] | 281 | /* FIXME - what to for failure of get_user()? */ |
| 282 | get_user_ual(regs->ARM_r2, stack + 8); /* envp */ |
| 283 | get_user_ual(regs->ARM_r1, stack + 4); /* envp */ |
bellard | a1516e9 | 2003-07-09 17:13:37 +0000 | [diff] [blame] | 284 | /* XXX: it seems that r0 is zeroed after ! */ |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 285 | regs->ARM_r0 = 0; |
| 286 | /* For uClinux PIC binaries. */ |
j_mayer | 863cf0b | 2007-10-07 15:59:45 +0000 | [diff] [blame] | 287 | /* XXX: Linux does this only on ARM with no MMU (do we care ?) */ |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 288 | regs->ARM_r10 = infop->start_data; |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 289 | } |
| 290 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 291 | #define ELF_NREG 18 |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 292 | typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 293 | |
Andreas Färber | 0539024 | 2012-02-25 03:37:53 +0100 | [diff] [blame] | 294 | static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUARMState *env) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 295 | { |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 296 | (*regs)[0] = tswapreg(env->regs[0]); |
| 297 | (*regs)[1] = tswapreg(env->regs[1]); |
| 298 | (*regs)[2] = tswapreg(env->regs[2]); |
| 299 | (*regs)[3] = tswapreg(env->regs[3]); |
| 300 | (*regs)[4] = tswapreg(env->regs[4]); |
| 301 | (*regs)[5] = tswapreg(env->regs[5]); |
| 302 | (*regs)[6] = tswapreg(env->regs[6]); |
| 303 | (*regs)[7] = tswapreg(env->regs[7]); |
| 304 | (*regs)[8] = tswapreg(env->regs[8]); |
| 305 | (*regs)[9] = tswapreg(env->regs[9]); |
| 306 | (*regs)[10] = tswapreg(env->regs[10]); |
| 307 | (*regs)[11] = tswapreg(env->regs[11]); |
| 308 | (*regs)[12] = tswapreg(env->regs[12]); |
| 309 | (*regs)[13] = tswapreg(env->regs[13]); |
| 310 | (*regs)[14] = tswapreg(env->regs[14]); |
| 311 | (*regs)[15] = tswapreg(env->regs[15]); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 312 | |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 313 | (*regs)[16] = tswapreg(cpsr_read((CPUARMState *)env)); |
| 314 | (*regs)[17] = tswapreg(env->regs[0]); /* XXX */ |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 315 | } |
| 316 | |
bellard | 30ac07d | 2003-04-07 21:33:03 +0000 | [diff] [blame] | 317 | #define USE_ELF_CORE_DUMP |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 318 | #define ELF_EXEC_PAGESIZE 4096 |
bellard | 30ac07d | 2003-04-07 21:33:03 +0000 | [diff] [blame] | 319 | |
bellard | afce292 | 2005-10-30 20:58:30 +0000 | [diff] [blame] | 320 | enum |
| 321 | { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 322 | ARM_HWCAP_ARM_SWP = 1 << 0, |
| 323 | ARM_HWCAP_ARM_HALF = 1 << 1, |
| 324 | ARM_HWCAP_ARM_THUMB = 1 << 2, |
| 325 | ARM_HWCAP_ARM_26BIT = 1 << 3, |
| 326 | ARM_HWCAP_ARM_FAST_MULT = 1 << 4, |
| 327 | ARM_HWCAP_ARM_FPA = 1 << 5, |
| 328 | ARM_HWCAP_ARM_VFP = 1 << 6, |
| 329 | ARM_HWCAP_ARM_EDSP = 1 << 7, |
| 330 | ARM_HWCAP_ARM_JAVA = 1 << 8, |
| 331 | ARM_HWCAP_ARM_IWMMXT = 1 << 9, |
Peter Maydell | 43ce393 | 2014-05-02 14:45:12 +0100 | [diff] [blame] | 332 | ARM_HWCAP_ARM_CRUNCH = 1 << 10, |
| 333 | ARM_HWCAP_ARM_THUMBEE = 1 << 11, |
| 334 | ARM_HWCAP_ARM_NEON = 1 << 12, |
| 335 | ARM_HWCAP_ARM_VFPv3 = 1 << 13, |
| 336 | ARM_HWCAP_ARM_VFPv3D16 = 1 << 14, |
Peter Maydell | 2468265 | 2014-05-02 14:45:13 +0100 | [diff] [blame] | 337 | ARM_HWCAP_ARM_TLS = 1 << 15, |
| 338 | ARM_HWCAP_ARM_VFPv4 = 1 << 16, |
| 339 | ARM_HWCAP_ARM_IDIVA = 1 << 17, |
| 340 | ARM_HWCAP_ARM_IDIVT = 1 << 18, |
| 341 | ARM_HWCAP_ARM_VFPD32 = 1 << 19, |
| 342 | ARM_HWCAP_ARM_LPAE = 1 << 20, |
| 343 | ARM_HWCAP_ARM_EVTSTRM = 1 << 21, |
bellard | afce292 | 2005-10-30 20:58:30 +0000 | [diff] [blame] | 344 | }; |
| 345 | |
Peter Maydell | ad6919d | 2014-05-02 14:45:15 +0100 | [diff] [blame] | 346 | enum { |
| 347 | ARM_HWCAP2_ARM_AES = 1 << 0, |
| 348 | ARM_HWCAP2_ARM_PMULL = 1 << 1, |
| 349 | ARM_HWCAP2_ARM_SHA1 = 1 << 2, |
| 350 | ARM_HWCAP2_ARM_SHA2 = 1 << 3, |
| 351 | ARM_HWCAP2_ARM_CRC32 = 1 << 4, |
| 352 | }; |
| 353 | |
Peter Maydell | 6b1275f | 2014-03-10 12:59:17 +0000 | [diff] [blame] | 354 | /* The commpage only exists for 32 bit kernels */ |
| 355 | |
Meador Inge | 806d102 | 2012-07-26 16:50:02 +0000 | [diff] [blame] | 356 | #define TARGET_HAS_VALIDATE_GUEST_SPACE |
| 357 | /* Return 1 if the proposed guest space is suitable for the guest. |
| 358 | * Return 0 if the proposed guest space isn't suitable, but another |
| 359 | * address space should be tried. |
| 360 | * Return -1 if there is no way the proposed guest space can be |
| 361 | * valid regardless of the base. |
| 362 | * The guest code may leave a page mapped and populate it if the |
| 363 | * address is suitable. |
| 364 | */ |
| 365 | static int validate_guest_space(unsigned long guest_base, |
| 366 | unsigned long guest_size) |
Dr. David Alan Gilbert | 97cc756 | 2011-08-31 17:24:34 +0100 | [diff] [blame] | 367 | { |
| 368 | unsigned long real_start, test_page_addr; |
| 369 | |
| 370 | /* We need to check that we can force a fault on access to the |
| 371 | * commpage at 0xffff0fxx |
| 372 | */ |
| 373 | test_page_addr = guest_base + (0xffff0f00 & qemu_host_page_mask); |
Meador Inge | 806d102 | 2012-07-26 16:50:02 +0000 | [diff] [blame] | 374 | |
| 375 | /* If the commpage lies within the already allocated guest space, |
| 376 | * then there is no way we can allocate it. |
| 377 | */ |
| 378 | if (test_page_addr >= guest_base |
| 379 | && test_page_addr <= (guest_base + guest_size)) { |
| 380 | return -1; |
| 381 | } |
| 382 | |
Dr. David Alan Gilbert | 97cc756 | 2011-08-31 17:24:34 +0100 | [diff] [blame] | 383 | /* Note it needs to be writeable to let us initialise it */ |
| 384 | real_start = (unsigned long) |
| 385 | mmap((void *)test_page_addr, qemu_host_page_size, |
| 386 | PROT_READ | PROT_WRITE, |
| 387 | MAP_ANONYMOUS | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
| 388 | |
| 389 | /* If we can't map it then try another address */ |
| 390 | if (real_start == -1ul) { |
| 391 | return 0; |
| 392 | } |
| 393 | |
| 394 | if (real_start != test_page_addr) { |
| 395 | /* OS didn't put the page where we asked - unmap and reject */ |
| 396 | munmap((void *)real_start, qemu_host_page_size); |
| 397 | return 0; |
| 398 | } |
| 399 | |
| 400 | /* Leave the page mapped |
| 401 | * Populate it (mmap should have left it all 0'd) |
| 402 | */ |
| 403 | |
| 404 | /* Kernel helper versions */ |
| 405 | __put_user(5, (uint32_t *)g2h(0xffff0ffcul)); |
| 406 | |
| 407 | /* Now it's populated make it RO */ |
| 408 | if (mprotect((void *)test_page_addr, qemu_host_page_size, PROT_READ)) { |
| 409 | perror("Protecting guest commpage"); |
| 410 | exit(-1); |
| 411 | } |
| 412 | |
| 413 | return 1; /* All good */ |
| 414 | } |
Benoit Canet | adf050b | 2011-11-09 03:37:23 +0000 | [diff] [blame] | 415 | |
| 416 | #define ELF_HWCAP get_elf_hwcap() |
Peter Maydell | ad6919d | 2014-05-02 14:45:15 +0100 | [diff] [blame] | 417 | #define ELF_HWCAP2 get_elf_hwcap2() |
Benoit Canet | adf050b | 2011-11-09 03:37:23 +0000 | [diff] [blame] | 418 | |
| 419 | static uint32_t get_elf_hwcap(void) |
| 420 | { |
Andreas Färber | a2247f8 | 2013-06-09 19:47:04 +0200 | [diff] [blame] | 421 | ARMCPU *cpu = ARM_CPU(thread_cpu); |
Benoit Canet | adf050b | 2011-11-09 03:37:23 +0000 | [diff] [blame] | 422 | uint32_t hwcaps = 0; |
| 423 | |
| 424 | hwcaps |= ARM_HWCAP_ARM_SWP; |
| 425 | hwcaps |= ARM_HWCAP_ARM_HALF; |
| 426 | hwcaps |= ARM_HWCAP_ARM_THUMB; |
| 427 | hwcaps |= ARM_HWCAP_ARM_FAST_MULT; |
Benoit Canet | adf050b | 2011-11-09 03:37:23 +0000 | [diff] [blame] | 428 | |
| 429 | /* probe for the extra features */ |
| 430 | #define GET_FEATURE(feat, hwcap) \ |
Andreas Färber | a2247f8 | 2013-06-09 19:47:04 +0200 | [diff] [blame] | 431 | do { if (arm_feature(&cpu->env, feat)) { hwcaps |= hwcap; } } while (0) |
Peter Maydell | 2468265 | 2014-05-02 14:45:13 +0100 | [diff] [blame] | 432 | /* EDSP is in v5TE and above, but all our v5 CPUs are v5TE */ |
| 433 | GET_FEATURE(ARM_FEATURE_V5, ARM_HWCAP_ARM_EDSP); |
Benoit Canet | adf050b | 2011-11-09 03:37:23 +0000 | [diff] [blame] | 434 | GET_FEATURE(ARM_FEATURE_VFP, ARM_HWCAP_ARM_VFP); |
| 435 | GET_FEATURE(ARM_FEATURE_IWMMXT, ARM_HWCAP_ARM_IWMMXT); |
| 436 | GET_FEATURE(ARM_FEATURE_THUMB2EE, ARM_HWCAP_ARM_THUMBEE); |
| 437 | GET_FEATURE(ARM_FEATURE_NEON, ARM_HWCAP_ARM_NEON); |
| 438 | GET_FEATURE(ARM_FEATURE_VFP3, ARM_HWCAP_ARM_VFPv3); |
Peter Maydell | 2468265 | 2014-05-02 14:45:13 +0100 | [diff] [blame] | 439 | GET_FEATURE(ARM_FEATURE_V6K, ARM_HWCAP_ARM_TLS); |
| 440 | GET_FEATURE(ARM_FEATURE_VFP4, ARM_HWCAP_ARM_VFPv4); |
| 441 | GET_FEATURE(ARM_FEATURE_ARM_DIV, ARM_HWCAP_ARM_IDIVA); |
| 442 | GET_FEATURE(ARM_FEATURE_THUMB_DIV, ARM_HWCAP_ARM_IDIVT); |
| 443 | /* All QEMU's VFPv3 CPUs have 32 registers, see VFP_DREG in translate.c. |
| 444 | * Note that the ARM_HWCAP_ARM_VFPv3D16 bit is always the inverse of |
| 445 | * ARM_HWCAP_ARM_VFPD32 (and so always clear for QEMU); it is unrelated |
| 446 | * to our VFP_FP16 feature bit. |
| 447 | */ |
| 448 | GET_FEATURE(ARM_FEATURE_VFP3, ARM_HWCAP_ARM_VFPD32); |
| 449 | GET_FEATURE(ARM_FEATURE_LPAE, ARM_HWCAP_ARM_LPAE); |
Benoit Canet | adf050b | 2011-11-09 03:37:23 +0000 | [diff] [blame] | 450 | |
| 451 | return hwcaps; |
| 452 | } |
bellard | afce292 | 2005-10-30 20:58:30 +0000 | [diff] [blame] | 453 | |
Peter Maydell | ad6919d | 2014-05-02 14:45:15 +0100 | [diff] [blame] | 454 | static uint32_t get_elf_hwcap2(void) |
| 455 | { |
| 456 | ARMCPU *cpu = ARM_CPU(thread_cpu); |
| 457 | uint32_t hwcaps = 0; |
| 458 | |
| 459 | GET_FEATURE(ARM_FEATURE_V8_AES, ARM_HWCAP2_ARM_AES); |
Peter Maydell | 4e624ed | 2014-06-09 15:43:23 +0100 | [diff] [blame] | 460 | GET_FEATURE(ARM_FEATURE_V8_PMULL, ARM_HWCAP2_ARM_PMULL); |
Ard Biesheuvel | f1ecb91 | 2014-06-09 15:43:23 +0100 | [diff] [blame] | 461 | GET_FEATURE(ARM_FEATURE_V8_SHA1, ARM_HWCAP2_ARM_SHA1); |
| 462 | GET_FEATURE(ARM_FEATURE_V8_SHA256, ARM_HWCAP2_ARM_SHA2); |
Peter Maydell | ad6919d | 2014-05-02 14:45:15 +0100 | [diff] [blame] | 463 | GET_FEATURE(ARM_FEATURE_CRC, ARM_HWCAP2_ARM_CRC32); |
| 464 | return hwcaps; |
| 465 | } |
| 466 | |
| 467 | #undef GET_FEATURE |
| 468 | |
Peter Maydell | 24e76ff | 2014-05-02 14:45:14 +0100 | [diff] [blame] | 469 | #else |
| 470 | /* 64 bit ARM definitions */ |
| 471 | #define ELF_START_MMAP 0x80000000 |
| 472 | |
Peter Crosthwaite | b597c3f | 2015-05-10 23:29:25 -0700 | [diff] [blame] | 473 | #define ELF_ARCH EM_AARCH64 |
Peter Maydell | 24e76ff | 2014-05-02 14:45:14 +0100 | [diff] [blame] | 474 | #define ELF_CLASS ELFCLASS64 |
| 475 | #define ELF_PLATFORM "aarch64" |
| 476 | |
| 477 | static inline void init_thread(struct target_pt_regs *regs, |
| 478 | struct image_info *infop) |
| 479 | { |
| 480 | abi_long stack = infop->start_stack; |
| 481 | memset(regs, 0, sizeof(*regs)); |
| 482 | |
| 483 | regs->pc = infop->entry & ~0x3ULL; |
| 484 | regs->sp = stack; |
| 485 | } |
| 486 | |
| 487 | #define ELF_NREG 34 |
| 488 | typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
| 489 | |
| 490 | static void elf_core_copy_regs(target_elf_gregset_t *regs, |
| 491 | const CPUARMState *env) |
| 492 | { |
| 493 | int i; |
| 494 | |
| 495 | for (i = 0; i < 32; i++) { |
| 496 | (*regs)[i] = tswapreg(env->xregs[i]); |
| 497 | } |
| 498 | (*regs)[32] = tswapreg(env->pc); |
| 499 | (*regs)[33] = tswapreg(pstate_read((CPUARMState *)env)); |
| 500 | } |
| 501 | |
| 502 | #define USE_ELF_CORE_DUMP |
| 503 | #define ELF_EXEC_PAGESIZE 4096 |
| 504 | |
| 505 | enum { |
| 506 | ARM_HWCAP_A64_FP = 1 << 0, |
| 507 | ARM_HWCAP_A64_ASIMD = 1 << 1, |
| 508 | ARM_HWCAP_A64_EVTSTRM = 1 << 2, |
| 509 | ARM_HWCAP_A64_AES = 1 << 3, |
| 510 | ARM_HWCAP_A64_PMULL = 1 << 4, |
| 511 | ARM_HWCAP_A64_SHA1 = 1 << 5, |
| 512 | ARM_HWCAP_A64_SHA2 = 1 << 6, |
| 513 | ARM_HWCAP_A64_CRC32 = 1 << 7, |
| 514 | }; |
| 515 | |
| 516 | #define ELF_HWCAP get_elf_hwcap() |
| 517 | |
| 518 | static uint32_t get_elf_hwcap(void) |
| 519 | { |
| 520 | ARMCPU *cpu = ARM_CPU(thread_cpu); |
| 521 | uint32_t hwcaps = 0; |
| 522 | |
| 523 | hwcaps |= ARM_HWCAP_A64_FP; |
| 524 | hwcaps |= ARM_HWCAP_A64_ASIMD; |
| 525 | |
| 526 | /* probe for the extra features */ |
| 527 | #define GET_FEATURE(feat, hwcap) \ |
| 528 | do { if (arm_feature(&cpu->env, feat)) { hwcaps |= hwcap; } } while (0) |
Peter Maydell | 5acc765 | 2014-06-09 15:43:25 +0100 | [diff] [blame] | 529 | GET_FEATURE(ARM_FEATURE_V8_AES, ARM_HWCAP_A64_AES); |
Peter Maydell | 411bdc7 | 2014-06-09 15:43:24 +0100 | [diff] [blame] | 530 | GET_FEATURE(ARM_FEATURE_V8_PMULL, ARM_HWCAP_A64_PMULL); |
Peter Maydell | f6fe04d | 2014-06-09 15:43:26 +0100 | [diff] [blame] | 531 | GET_FEATURE(ARM_FEATURE_V8_SHA1, ARM_HWCAP_A64_SHA1); |
| 532 | GET_FEATURE(ARM_FEATURE_V8_SHA256, ARM_HWCAP_A64_SHA2); |
Peter Maydell | 130f2e7 | 2014-06-09 15:43:25 +0100 | [diff] [blame] | 533 | GET_FEATURE(ARM_FEATURE_CRC, ARM_HWCAP_A64_CRC32); |
Peter Maydell | 24e76ff | 2014-05-02 14:45:14 +0100 | [diff] [blame] | 534 | #undef GET_FEATURE |
| 535 | |
| 536 | return hwcaps; |
| 537 | } |
| 538 | |
| 539 | #endif /* not TARGET_AARCH64 */ |
| 540 | #endif /* TARGET_ARM */ |
bellard | 30ac07d | 2003-04-07 21:33:03 +0000 | [diff] [blame] | 541 | |
Guan Xuetao | d2fbca9 | 2011-04-12 16:27:03 +0800 | [diff] [blame] | 542 | #ifdef TARGET_UNICORE32 |
| 543 | |
| 544 | #define ELF_START_MMAP 0x80000000 |
| 545 | |
Guan Xuetao | d2fbca9 | 2011-04-12 16:27:03 +0800 | [diff] [blame] | 546 | #define ELF_CLASS ELFCLASS32 |
| 547 | #define ELF_DATA ELFDATA2LSB |
| 548 | #define ELF_ARCH EM_UNICORE32 |
| 549 | |
| 550 | static inline void init_thread(struct target_pt_regs *regs, |
| 551 | struct image_info *infop) |
| 552 | { |
| 553 | abi_long stack = infop->start_stack; |
| 554 | memset(regs, 0, sizeof(*regs)); |
| 555 | regs->UC32_REG_asr = 0x10; |
| 556 | regs->UC32_REG_pc = infop->entry & 0xfffffffe; |
| 557 | regs->UC32_REG_sp = infop->start_stack; |
| 558 | /* FIXME - what to for failure of get_user()? */ |
| 559 | get_user_ual(regs->UC32_REG_02, stack + 8); /* envp */ |
| 560 | get_user_ual(regs->UC32_REG_01, stack + 4); /* envp */ |
| 561 | /* XXX: it seems that r0 is zeroed after ! */ |
| 562 | regs->UC32_REG_00 = 0; |
| 563 | } |
| 564 | |
| 565 | #define ELF_NREG 34 |
| 566 | typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
| 567 | |
Andreas Färber | 0539024 | 2012-02-25 03:37:53 +0100 | [diff] [blame] | 568 | static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUUniCore32State *env) |
Guan Xuetao | d2fbca9 | 2011-04-12 16:27:03 +0800 | [diff] [blame] | 569 | { |
| 570 | (*regs)[0] = env->regs[0]; |
| 571 | (*regs)[1] = env->regs[1]; |
| 572 | (*regs)[2] = env->regs[2]; |
| 573 | (*regs)[3] = env->regs[3]; |
| 574 | (*regs)[4] = env->regs[4]; |
| 575 | (*regs)[5] = env->regs[5]; |
| 576 | (*regs)[6] = env->regs[6]; |
| 577 | (*regs)[7] = env->regs[7]; |
| 578 | (*regs)[8] = env->regs[8]; |
| 579 | (*regs)[9] = env->regs[9]; |
| 580 | (*regs)[10] = env->regs[10]; |
| 581 | (*regs)[11] = env->regs[11]; |
| 582 | (*regs)[12] = env->regs[12]; |
| 583 | (*regs)[13] = env->regs[13]; |
| 584 | (*regs)[14] = env->regs[14]; |
| 585 | (*regs)[15] = env->regs[15]; |
| 586 | (*regs)[16] = env->regs[16]; |
| 587 | (*regs)[17] = env->regs[17]; |
| 588 | (*regs)[18] = env->regs[18]; |
| 589 | (*regs)[19] = env->regs[19]; |
| 590 | (*regs)[20] = env->regs[20]; |
| 591 | (*regs)[21] = env->regs[21]; |
| 592 | (*regs)[22] = env->regs[22]; |
| 593 | (*regs)[23] = env->regs[23]; |
| 594 | (*regs)[24] = env->regs[24]; |
| 595 | (*regs)[25] = env->regs[25]; |
| 596 | (*regs)[26] = env->regs[26]; |
| 597 | (*regs)[27] = env->regs[27]; |
| 598 | (*regs)[28] = env->regs[28]; |
| 599 | (*regs)[29] = env->regs[29]; |
| 600 | (*regs)[30] = env->regs[30]; |
| 601 | (*regs)[31] = env->regs[31]; |
| 602 | |
Andreas Färber | 0539024 | 2012-02-25 03:37:53 +0100 | [diff] [blame] | 603 | (*regs)[32] = cpu_asr_read((CPUUniCore32State *)env); |
Guan Xuetao | d2fbca9 | 2011-04-12 16:27:03 +0800 | [diff] [blame] | 604 | (*regs)[33] = env->regs[0]; /* XXX */ |
| 605 | } |
| 606 | |
| 607 | #define USE_ELF_CORE_DUMP |
| 608 | #define ELF_EXEC_PAGESIZE 4096 |
| 609 | |
| 610 | #define ELF_HWCAP (UC32_HWCAP_CMOV | UC32_HWCAP_UCF64) |
| 611 | |
| 612 | #endif |
| 613 | |
bellard | 853d6f7 | 2003-09-30 20:58:32 +0000 | [diff] [blame] | 614 | #ifdef TARGET_SPARC |
bellard | a315a14 | 2005-01-30 22:59:18 +0000 | [diff] [blame] | 615 | #ifdef TARGET_SPARC64 |
bellard | 853d6f7 | 2003-09-30 20:58:32 +0000 | [diff] [blame] | 616 | |
| 617 | #define ELF_START_MMAP 0x80000000 |
Artyom Tarasenko | cf973e4 | 2011-07-14 19:37:06 +0200 | [diff] [blame] | 618 | #define ELF_HWCAP (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | HWCAP_SPARC_SWAP \ |
| 619 | | HWCAP_SPARC_MULDIV | HWCAP_SPARC_V9) |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 620 | #ifndef TARGET_ABI32 |
blueswir1 | cb33da5 | 2007-10-09 16:34:29 +0000 | [diff] [blame] | 621 | #define elf_check_arch(x) ( (x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS ) |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 622 | #else |
| 623 | #define elf_check_arch(x) ( (x) == EM_SPARC32PLUS || (x) == EM_SPARC ) |
| 624 | #endif |
bellard | 853d6f7 | 2003-09-30 20:58:32 +0000 | [diff] [blame] | 625 | |
bellard | a315a14 | 2005-01-30 22:59:18 +0000 | [diff] [blame] | 626 | #define ELF_CLASS ELFCLASS64 |
bellard | 5ef5411 | 2006-07-18 21:14:09 +0000 | [diff] [blame] | 627 | #define ELF_ARCH EM_SPARCV9 |
| 628 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 629 | #define STACK_BIAS 2047 |
bellard | a315a14 | 2005-01-30 22:59:18 +0000 | [diff] [blame] | 630 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 631 | static inline void init_thread(struct target_pt_regs *regs, |
| 632 | struct image_info *infop) |
bellard | a315a14 | 2005-01-30 22:59:18 +0000 | [diff] [blame] | 633 | { |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 634 | #ifndef TARGET_ABI32 |
bellard | a315a14 | 2005-01-30 22:59:18 +0000 | [diff] [blame] | 635 | regs->tstate = 0; |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 636 | #endif |
bellard | a315a14 | 2005-01-30 22:59:18 +0000 | [diff] [blame] | 637 | regs->pc = infop->entry; |
| 638 | regs->npc = regs->pc + 4; |
| 639 | regs->y = 0; |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 640 | #ifdef TARGET_ABI32 |
| 641 | regs->u_regs[14] = infop->start_stack - 16 * 4; |
| 642 | #else |
blueswir1 | cb33da5 | 2007-10-09 16:34:29 +0000 | [diff] [blame] | 643 | if (personality(infop->personality) == PER_LINUX32) |
| 644 | regs->u_regs[14] = infop->start_stack - 16 * 4; |
| 645 | else |
| 646 | regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS; |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 647 | #endif |
bellard | a315a14 | 2005-01-30 22:59:18 +0000 | [diff] [blame] | 648 | } |
| 649 | |
| 650 | #else |
| 651 | #define ELF_START_MMAP 0x80000000 |
Artyom Tarasenko | cf973e4 | 2011-07-14 19:37:06 +0200 | [diff] [blame] | 652 | #define ELF_HWCAP (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | HWCAP_SPARC_SWAP \ |
| 653 | | HWCAP_SPARC_MULDIV) |
bellard | a315a14 | 2005-01-30 22:59:18 +0000 | [diff] [blame] | 654 | |
bellard | 853d6f7 | 2003-09-30 20:58:32 +0000 | [diff] [blame] | 655 | #define ELF_CLASS ELFCLASS32 |
bellard | 853d6f7 | 2003-09-30 20:58:32 +0000 | [diff] [blame] | 656 | #define ELF_ARCH EM_SPARC |
| 657 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 658 | static inline void init_thread(struct target_pt_regs *regs, |
| 659 | struct image_info *infop) |
bellard | 853d6f7 | 2003-09-30 20:58:32 +0000 | [diff] [blame] | 660 | { |
bellard | f515528 | 2004-01-04 15:46:50 +0000 | [diff] [blame] | 661 | regs->psr = 0; |
| 662 | regs->pc = infop->entry; |
| 663 | regs->npc = regs->pc + 4; |
| 664 | regs->y = 0; |
| 665 | regs->u_regs[14] = infop->start_stack - 16 * 4; |
bellard | 853d6f7 | 2003-09-30 20:58:32 +0000 | [diff] [blame] | 666 | } |
| 667 | |
| 668 | #endif |
bellard | a315a14 | 2005-01-30 22:59:18 +0000 | [diff] [blame] | 669 | #endif |
bellard | 853d6f7 | 2003-09-30 20:58:32 +0000 | [diff] [blame] | 670 | |
bellard | 6786730 | 2003-11-23 17:05:30 +0000 | [diff] [blame] | 671 | #ifdef TARGET_PPC |
| 672 | |
Peter Crosthwaite | 4ecd4d1 | 2015-05-10 23:29:10 -0700 | [diff] [blame] | 673 | #define ELF_MACHINE PPC_ELF_MACHINE |
bellard | 6786730 | 2003-11-23 17:05:30 +0000 | [diff] [blame] | 674 | #define ELF_START_MMAP 0x80000000 |
| 675 | |
j_mayer | e85e7c6 | 2007-10-18 19:59:49 +0000 | [diff] [blame] | 676 | #if defined(TARGET_PPC64) && !defined(TARGET_ABI32) |
j_mayer | 84409dd | 2007-04-06 08:56:50 +0000 | [diff] [blame] | 677 | |
| 678 | #define elf_check_arch(x) ( (x) == EM_PPC64 ) |
| 679 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 680 | #define ELF_CLASS ELFCLASS64 |
j_mayer | 84409dd | 2007-04-06 08:56:50 +0000 | [diff] [blame] | 681 | |
| 682 | #else |
| 683 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 684 | #define ELF_CLASS ELFCLASS32 |
j_mayer | 84409dd | 2007-04-06 08:56:50 +0000 | [diff] [blame] | 685 | |
| 686 | #endif |
| 687 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 688 | #define ELF_ARCH EM_PPC |
bellard | 6786730 | 2003-11-23 17:05:30 +0000 | [diff] [blame] | 689 | |
Nathan Froyd | df84e4f | 2009-05-12 12:26:59 -0700 | [diff] [blame] | 690 | /* Feature masks for the Aux Vector Hardware Capabilities (AT_HWCAP). |
| 691 | See arch/powerpc/include/asm/cputable.h. */ |
| 692 | enum { |
malc | 3efa9a6 | 2009-07-18 13:10:12 +0400 | [diff] [blame] | 693 | QEMU_PPC_FEATURE_32 = 0x80000000, |
| 694 | QEMU_PPC_FEATURE_64 = 0x40000000, |
| 695 | QEMU_PPC_FEATURE_601_INSTR = 0x20000000, |
| 696 | QEMU_PPC_FEATURE_HAS_ALTIVEC = 0x10000000, |
| 697 | QEMU_PPC_FEATURE_HAS_FPU = 0x08000000, |
| 698 | QEMU_PPC_FEATURE_HAS_MMU = 0x04000000, |
| 699 | QEMU_PPC_FEATURE_HAS_4xxMAC = 0x02000000, |
| 700 | QEMU_PPC_FEATURE_UNIFIED_CACHE = 0x01000000, |
| 701 | QEMU_PPC_FEATURE_HAS_SPE = 0x00800000, |
| 702 | QEMU_PPC_FEATURE_HAS_EFP_SINGLE = 0x00400000, |
| 703 | QEMU_PPC_FEATURE_HAS_EFP_DOUBLE = 0x00200000, |
| 704 | QEMU_PPC_FEATURE_NO_TB = 0x00100000, |
| 705 | QEMU_PPC_FEATURE_POWER4 = 0x00080000, |
| 706 | QEMU_PPC_FEATURE_POWER5 = 0x00040000, |
| 707 | QEMU_PPC_FEATURE_POWER5_PLUS = 0x00020000, |
| 708 | QEMU_PPC_FEATURE_CELL = 0x00010000, |
| 709 | QEMU_PPC_FEATURE_BOOKE = 0x00008000, |
| 710 | QEMU_PPC_FEATURE_SMT = 0x00004000, |
| 711 | QEMU_PPC_FEATURE_ICACHE_SNOOP = 0x00002000, |
| 712 | QEMU_PPC_FEATURE_ARCH_2_05 = 0x00001000, |
| 713 | QEMU_PPC_FEATURE_PA6T = 0x00000800, |
| 714 | QEMU_PPC_FEATURE_HAS_DFP = 0x00000400, |
| 715 | QEMU_PPC_FEATURE_POWER6_EXT = 0x00000200, |
| 716 | QEMU_PPC_FEATURE_ARCH_2_06 = 0x00000100, |
| 717 | QEMU_PPC_FEATURE_HAS_VSX = 0x00000080, |
| 718 | QEMU_PPC_FEATURE_PSERIES_PERFMON_COMPAT = 0x00000040, |
Nathan Froyd | df84e4f | 2009-05-12 12:26:59 -0700 | [diff] [blame] | 719 | |
malc | 3efa9a6 | 2009-07-18 13:10:12 +0400 | [diff] [blame] | 720 | QEMU_PPC_FEATURE_TRUE_LE = 0x00000002, |
| 721 | QEMU_PPC_FEATURE_PPC_LE = 0x00000001, |
Tom Musta | a60438d | 2014-06-16 11:03:22 -0500 | [diff] [blame] | 722 | |
| 723 | /* Feature definitions in AT_HWCAP2. */ |
| 724 | QEMU_PPC_FEATURE2_ARCH_2_07 = 0x80000000, /* ISA 2.07 */ |
| 725 | QEMU_PPC_FEATURE2_HAS_HTM = 0x40000000, /* Hardware Transactional Memory */ |
| 726 | QEMU_PPC_FEATURE2_HAS_DSCR = 0x20000000, /* Data Stream Control Register */ |
| 727 | QEMU_PPC_FEATURE2_HAS_EBB = 0x10000000, /* Event Base Branching */ |
| 728 | QEMU_PPC_FEATURE2_HAS_ISEL = 0x08000000, /* Integer Select */ |
| 729 | QEMU_PPC_FEATURE2_HAS_TAR = 0x04000000, /* Target Address Register */ |
Nathan Froyd | df84e4f | 2009-05-12 12:26:59 -0700 | [diff] [blame] | 730 | }; |
| 731 | |
| 732 | #define ELF_HWCAP get_elf_hwcap() |
| 733 | |
| 734 | static uint32_t get_elf_hwcap(void) |
| 735 | { |
Andreas Färber | a2247f8 | 2013-06-09 19:47:04 +0200 | [diff] [blame] | 736 | PowerPCCPU *cpu = POWERPC_CPU(thread_cpu); |
Nathan Froyd | df84e4f | 2009-05-12 12:26:59 -0700 | [diff] [blame] | 737 | uint32_t features = 0; |
| 738 | |
| 739 | /* We don't have to be terribly complete here; the high points are |
| 740 | Altivec/FP/SPE support. Anything else is just a bonus. */ |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 741 | #define GET_FEATURE(flag, feature) \ |
Andreas Färber | a2247f8 | 2013-06-09 19:47:04 +0200 | [diff] [blame] | 742 | do { if (cpu->env.insns_flags & flag) { features |= feature; } } while (0) |
Tom Musta | 0e01974 | 2014-06-16 11:03:21 -0500 | [diff] [blame] | 743 | #define GET_FEATURE2(flag, feature) \ |
| 744 | do { if (cpu->env.insns_flags2 & flag) { features |= feature; } } while (0) |
malc | 3efa9a6 | 2009-07-18 13:10:12 +0400 | [diff] [blame] | 745 | GET_FEATURE(PPC_64B, QEMU_PPC_FEATURE_64); |
| 746 | GET_FEATURE(PPC_FLOAT, QEMU_PPC_FEATURE_HAS_FPU); |
| 747 | GET_FEATURE(PPC_ALTIVEC, QEMU_PPC_FEATURE_HAS_ALTIVEC); |
| 748 | GET_FEATURE(PPC_SPE, QEMU_PPC_FEATURE_HAS_SPE); |
| 749 | GET_FEATURE(PPC_SPE_SINGLE, QEMU_PPC_FEATURE_HAS_EFP_SINGLE); |
| 750 | GET_FEATURE(PPC_SPE_DOUBLE, QEMU_PPC_FEATURE_HAS_EFP_DOUBLE); |
| 751 | GET_FEATURE(PPC_BOOKE, QEMU_PPC_FEATURE_BOOKE); |
| 752 | GET_FEATURE(PPC_405_MAC, QEMU_PPC_FEATURE_HAS_4xxMAC); |
Tom Musta | 0e01974 | 2014-06-16 11:03:21 -0500 | [diff] [blame] | 753 | GET_FEATURE2(PPC2_DFP, QEMU_PPC_FEATURE_HAS_DFP); |
| 754 | GET_FEATURE2(PPC2_VSX, QEMU_PPC_FEATURE_HAS_VSX); |
| 755 | GET_FEATURE2((PPC2_PERM_ISA206 | PPC2_DIVE_ISA206 | PPC2_ATOMIC_ISA206 | |
| 756 | PPC2_FP_CVT_ISA206 | PPC2_FP_TST_ISA206), |
| 757 | QEMU_PPC_FEATURE_ARCH_2_06); |
Nathan Froyd | df84e4f | 2009-05-12 12:26:59 -0700 | [diff] [blame] | 758 | #undef GET_FEATURE |
Tom Musta | 0e01974 | 2014-06-16 11:03:21 -0500 | [diff] [blame] | 759 | #undef GET_FEATURE2 |
Nathan Froyd | df84e4f | 2009-05-12 12:26:59 -0700 | [diff] [blame] | 760 | |
| 761 | return features; |
| 762 | } |
| 763 | |
Tom Musta | a60438d | 2014-06-16 11:03:22 -0500 | [diff] [blame] | 764 | #define ELF_HWCAP2 get_elf_hwcap2() |
| 765 | |
| 766 | static uint32_t get_elf_hwcap2(void) |
| 767 | { |
| 768 | PowerPCCPU *cpu = POWERPC_CPU(thread_cpu); |
| 769 | uint32_t features = 0; |
| 770 | |
| 771 | #define GET_FEATURE(flag, feature) \ |
| 772 | do { if (cpu->env.insns_flags & flag) { features |= feature; } } while (0) |
| 773 | #define GET_FEATURE2(flag, feature) \ |
| 774 | do { if (cpu->env.insns_flags2 & flag) { features |= feature; } } while (0) |
| 775 | |
| 776 | GET_FEATURE(PPC_ISEL, QEMU_PPC_FEATURE2_HAS_ISEL); |
| 777 | GET_FEATURE2(PPC2_BCTAR_ISA207, QEMU_PPC_FEATURE2_HAS_TAR); |
| 778 | GET_FEATURE2((PPC2_BCTAR_ISA207 | PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 | |
| 779 | PPC2_ISA207S), QEMU_PPC_FEATURE2_ARCH_2_07); |
| 780 | |
| 781 | #undef GET_FEATURE |
| 782 | #undef GET_FEATURE2 |
| 783 | |
| 784 | return features; |
| 785 | } |
| 786 | |
bellard | f515528 | 2004-01-04 15:46:50 +0000 | [diff] [blame] | 787 | /* |
bellard | f515528 | 2004-01-04 15:46:50 +0000 | [diff] [blame] | 788 | * The requirements here are: |
| 789 | * - keep the final alignment of sp (sp & 0xf) |
| 790 | * - make sure the 32-bit value at the first 16 byte aligned position of |
| 791 | * AUXV is greater than 16 for glibc compatibility. |
| 792 | * AT_IGNOREPPC is used for that. |
| 793 | * - for compatibility with glibc ARCH_DLINFO must always be defined on PPC, |
| 794 | * even if DLINFO_ARCH_ITEMS goes to zero or is undefined. |
| 795 | */ |
bellard | 0bccf03 | 2005-08-21 10:12:28 +0000 | [diff] [blame] | 796 | #define DLINFO_ARCH_ITEMS 5 |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 797 | #define ARCH_DLINFO \ |
| 798 | do { \ |
Tom Musta | 623e250 | 2014-06-16 11:03:19 -0500 | [diff] [blame] | 799 | PowerPCCPU *cpu = POWERPC_CPU(thread_cpu); \ |
| 800 | NEW_AUX_ENT(AT_DCACHEBSIZE, cpu->env.dcache_line_size); \ |
| 801 | NEW_AUX_ENT(AT_ICACHEBSIZE, cpu->env.icache_line_size); \ |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 802 | NEW_AUX_ENT(AT_UCACHEBSIZE, 0); \ |
| 803 | /* \ |
| 804 | * Now handle glibc compatibility. \ |
| 805 | */ \ |
| 806 | NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \ |
| 807 | NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \ |
| 808 | } while (0) |
bellard | f515528 | 2004-01-04 15:46:50 +0000 | [diff] [blame] | 809 | |
bellard | 6786730 | 2003-11-23 17:05:30 +0000 | [diff] [blame] | 810 | static inline void init_thread(struct target_pt_regs *_regs, struct image_info *infop) |
| 811 | { |
bellard | 6786730 | 2003-11-23 17:05:30 +0000 | [diff] [blame] | 812 | _regs->gpr[1] = infop->start_stack; |
j_mayer | e85e7c6 | 2007-10-18 19:59:49 +0000 | [diff] [blame] | 813 | #if defined(TARGET_PPC64) && !defined(TARGET_ABI32) |
Doug Kwan | d90b94c | 2014-05-29 09:12:19 -0500 | [diff] [blame] | 814 | if (get_ppc64_abi(infop) < 2) { |
Peter Maydell | 2ccf97e | 2015-01-20 15:19:33 +0000 | [diff] [blame] | 815 | uint64_t val; |
| 816 | get_user_u64(val, infop->entry + 8); |
| 817 | _regs->gpr[2] = val + infop->load_bias; |
| 818 | get_user_u64(val, infop->entry); |
| 819 | infop->entry = val + infop->load_bias; |
Doug Kwan | d90b94c | 2014-05-29 09:12:19 -0500 | [diff] [blame] | 820 | } else { |
| 821 | _regs->gpr[12] = infop->entry; /* r12 set to global entry address */ |
| 822 | } |
j_mayer | 84409dd | 2007-04-06 08:56:50 +0000 | [diff] [blame] | 823 | #endif |
bellard | 6786730 | 2003-11-23 17:05:30 +0000 | [diff] [blame] | 824 | _regs->nip = infop->entry; |
| 825 | } |
| 826 | |
Nathan Froyd | e2f3e74 | 2009-12-11 09:04:48 -0800 | [diff] [blame] | 827 | /* See linux kernel: arch/powerpc/include/asm/elf.h. */ |
| 828 | #define ELF_NREG 48 |
| 829 | typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
| 830 | |
Andreas Färber | 0539024 | 2012-02-25 03:37:53 +0100 | [diff] [blame] | 831 | static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUPPCState *env) |
Nathan Froyd | e2f3e74 | 2009-12-11 09:04:48 -0800 | [diff] [blame] | 832 | { |
| 833 | int i; |
| 834 | target_ulong ccr = 0; |
| 835 | |
| 836 | for (i = 0; i < ARRAY_SIZE(env->gpr); i++) { |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 837 | (*regs)[i] = tswapreg(env->gpr[i]); |
Nathan Froyd | e2f3e74 | 2009-12-11 09:04:48 -0800 | [diff] [blame] | 838 | } |
| 839 | |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 840 | (*regs)[32] = tswapreg(env->nip); |
| 841 | (*regs)[33] = tswapreg(env->msr); |
| 842 | (*regs)[35] = tswapreg(env->ctr); |
| 843 | (*regs)[36] = tswapreg(env->lr); |
| 844 | (*regs)[37] = tswapreg(env->xer); |
Nathan Froyd | e2f3e74 | 2009-12-11 09:04:48 -0800 | [diff] [blame] | 845 | |
| 846 | for (i = 0; i < ARRAY_SIZE(env->crf); i++) { |
| 847 | ccr |= env->crf[i] << (32 - ((i + 1) * 4)); |
| 848 | } |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 849 | (*regs)[38] = tswapreg(ccr); |
Nathan Froyd | e2f3e74 | 2009-12-11 09:04:48 -0800 | [diff] [blame] | 850 | } |
| 851 | |
| 852 | #define USE_ELF_CORE_DUMP |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 853 | #define ELF_EXEC_PAGESIZE 4096 |
bellard | 6786730 | 2003-11-23 17:05:30 +0000 | [diff] [blame] | 854 | |
| 855 | #endif |
| 856 | |
bellard | 048f6b4 | 2005-11-26 18:47:20 +0000 | [diff] [blame] | 857 | #ifdef TARGET_MIPS |
| 858 | |
| 859 | #define ELF_START_MMAP 0x80000000 |
| 860 | |
ths | 388bb21 | 2007-05-13 13:58:00 +0000 | [diff] [blame] | 861 | #ifdef TARGET_MIPS64 |
| 862 | #define ELF_CLASS ELFCLASS64 |
| 863 | #else |
bellard | 048f6b4 | 2005-11-26 18:47:20 +0000 | [diff] [blame] | 864 | #define ELF_CLASS ELFCLASS32 |
ths | 388bb21 | 2007-05-13 13:58:00 +0000 | [diff] [blame] | 865 | #endif |
bellard | 048f6b4 | 2005-11-26 18:47:20 +0000 | [diff] [blame] | 866 | #define ELF_ARCH EM_MIPS |
| 867 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 868 | static inline void init_thread(struct target_pt_regs *regs, |
| 869 | struct image_info *infop) |
bellard | 048f6b4 | 2005-11-26 18:47:20 +0000 | [diff] [blame] | 870 | { |
ths | 623a930 | 2007-10-28 19:45:05 +0000 | [diff] [blame] | 871 | regs->cp0_status = 2 << CP0St_KSU; |
bellard | 048f6b4 | 2005-11-26 18:47:20 +0000 | [diff] [blame] | 872 | regs->cp0_epc = infop->entry; |
| 873 | regs->regs[29] = infop->start_stack; |
| 874 | } |
| 875 | |
Nathan Froyd | 51e5260 | 2009-12-11 09:04:49 -0800 | [diff] [blame] | 876 | /* See linux kernel: arch/mips/include/asm/elf.h. */ |
| 877 | #define ELF_NREG 45 |
| 878 | typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
| 879 | |
| 880 | /* See linux kernel: arch/mips/include/asm/reg.h. */ |
| 881 | enum { |
| 882 | #ifdef TARGET_MIPS64 |
| 883 | TARGET_EF_R0 = 0, |
| 884 | #else |
| 885 | TARGET_EF_R0 = 6, |
| 886 | #endif |
| 887 | TARGET_EF_R26 = TARGET_EF_R0 + 26, |
| 888 | TARGET_EF_R27 = TARGET_EF_R0 + 27, |
| 889 | TARGET_EF_LO = TARGET_EF_R0 + 32, |
| 890 | TARGET_EF_HI = TARGET_EF_R0 + 33, |
| 891 | TARGET_EF_CP0_EPC = TARGET_EF_R0 + 34, |
| 892 | TARGET_EF_CP0_BADVADDR = TARGET_EF_R0 + 35, |
| 893 | TARGET_EF_CP0_STATUS = TARGET_EF_R0 + 36, |
| 894 | TARGET_EF_CP0_CAUSE = TARGET_EF_R0 + 37 |
| 895 | }; |
| 896 | |
| 897 | /* See linux kernel: arch/mips/kernel/process.c:elf_dump_regs. */ |
Andreas Färber | 0539024 | 2012-02-25 03:37:53 +0100 | [diff] [blame] | 898 | static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUMIPSState *env) |
Nathan Froyd | 51e5260 | 2009-12-11 09:04:49 -0800 | [diff] [blame] | 899 | { |
| 900 | int i; |
| 901 | |
| 902 | for (i = 0; i < TARGET_EF_R0; i++) { |
| 903 | (*regs)[i] = 0; |
| 904 | } |
| 905 | (*regs)[TARGET_EF_R0] = 0; |
| 906 | |
| 907 | for (i = 1; i < ARRAY_SIZE(env->active_tc.gpr); i++) { |
Paolo Bonzini | a29f998 | 2013-04-17 16:26:37 +0200 | [diff] [blame] | 908 | (*regs)[TARGET_EF_R0 + i] = tswapreg(env->active_tc.gpr[i]); |
Nathan Froyd | 51e5260 | 2009-12-11 09:04:49 -0800 | [diff] [blame] | 909 | } |
| 910 | |
| 911 | (*regs)[TARGET_EF_R26] = 0; |
| 912 | (*regs)[TARGET_EF_R27] = 0; |
Paolo Bonzini | a29f998 | 2013-04-17 16:26:37 +0200 | [diff] [blame] | 913 | (*regs)[TARGET_EF_LO] = tswapreg(env->active_tc.LO[0]); |
| 914 | (*regs)[TARGET_EF_HI] = tswapreg(env->active_tc.HI[0]); |
| 915 | (*regs)[TARGET_EF_CP0_EPC] = tswapreg(env->active_tc.PC); |
| 916 | (*regs)[TARGET_EF_CP0_BADVADDR] = tswapreg(env->CP0_BadVAddr); |
| 917 | (*regs)[TARGET_EF_CP0_STATUS] = tswapreg(env->CP0_Status); |
| 918 | (*regs)[TARGET_EF_CP0_CAUSE] = tswapreg(env->CP0_Cause); |
Nathan Froyd | 51e5260 | 2009-12-11 09:04:49 -0800 | [diff] [blame] | 919 | } |
| 920 | |
| 921 | #define USE_ELF_CORE_DUMP |
ths | 388bb21 | 2007-05-13 13:58:00 +0000 | [diff] [blame] | 922 | #define ELF_EXEC_PAGESIZE 4096 |
| 923 | |
bellard | 048f6b4 | 2005-11-26 18:47:20 +0000 | [diff] [blame] | 924 | #endif /* TARGET_MIPS */ |
| 925 | |
Edgar E. Iglesias | b779e29 | 2009-05-20 21:31:33 +0200 | [diff] [blame] | 926 | #ifdef TARGET_MICROBLAZE |
| 927 | |
| 928 | #define ELF_START_MMAP 0x80000000 |
| 929 | |
Edgar E. Iglesias | 0d5d469 | 2010-05-19 15:24:17 +0200 | [diff] [blame] | 930 | #define elf_check_arch(x) ( (x) == EM_MICROBLAZE || (x) == EM_MICROBLAZE_OLD) |
Edgar E. Iglesias | b779e29 | 2009-05-20 21:31:33 +0200 | [diff] [blame] | 931 | |
| 932 | #define ELF_CLASS ELFCLASS32 |
Edgar E. Iglesias | 0d5d469 | 2010-05-19 15:24:17 +0200 | [diff] [blame] | 933 | #define ELF_ARCH EM_MICROBLAZE |
Edgar E. Iglesias | b779e29 | 2009-05-20 21:31:33 +0200 | [diff] [blame] | 934 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 935 | static inline void init_thread(struct target_pt_regs *regs, |
| 936 | struct image_info *infop) |
Edgar E. Iglesias | b779e29 | 2009-05-20 21:31:33 +0200 | [diff] [blame] | 937 | { |
| 938 | regs->pc = infop->entry; |
| 939 | regs->r1 = infop->start_stack; |
| 940 | |
| 941 | } |
| 942 | |
Edgar E. Iglesias | b779e29 | 2009-05-20 21:31:33 +0200 | [diff] [blame] | 943 | #define ELF_EXEC_PAGESIZE 4096 |
| 944 | |
Edgar E. Iglesias | e4cbd44 | 2010-05-19 15:09:28 +0200 | [diff] [blame] | 945 | #define USE_ELF_CORE_DUMP |
| 946 | #define ELF_NREG 38 |
| 947 | typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
| 948 | |
| 949 | /* See linux kernel: arch/mips/kernel/process.c:elf_dump_regs. */ |
Andreas Färber | 0539024 | 2012-02-25 03:37:53 +0100 | [diff] [blame] | 950 | static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUMBState *env) |
Edgar E. Iglesias | e4cbd44 | 2010-05-19 15:09:28 +0200 | [diff] [blame] | 951 | { |
| 952 | int i, pos = 0; |
| 953 | |
| 954 | for (i = 0; i < 32; i++) { |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 955 | (*regs)[pos++] = tswapreg(env->regs[i]); |
Edgar E. Iglesias | e4cbd44 | 2010-05-19 15:09:28 +0200 | [diff] [blame] | 956 | } |
| 957 | |
| 958 | for (i = 0; i < 6; i++) { |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 959 | (*regs)[pos++] = tswapreg(env->sregs[i]); |
Edgar E. Iglesias | e4cbd44 | 2010-05-19 15:09:28 +0200 | [diff] [blame] | 960 | } |
| 961 | } |
| 962 | |
Edgar E. Iglesias | b779e29 | 2009-05-20 21:31:33 +0200 | [diff] [blame] | 963 | #endif /* TARGET_MICROBLAZE */ |
| 964 | |
Jia Liu | d962783 | 2012-07-20 15:50:52 +0800 | [diff] [blame] | 965 | #ifdef TARGET_OPENRISC |
| 966 | |
| 967 | #define ELF_START_MMAP 0x08000000 |
| 968 | |
Jia Liu | d962783 | 2012-07-20 15:50:52 +0800 | [diff] [blame] | 969 | #define ELF_ARCH EM_OPENRISC |
| 970 | #define ELF_CLASS ELFCLASS32 |
| 971 | #define ELF_DATA ELFDATA2MSB |
| 972 | |
| 973 | static inline void init_thread(struct target_pt_regs *regs, |
| 974 | struct image_info *infop) |
| 975 | { |
| 976 | regs->pc = infop->entry; |
| 977 | regs->gpr[1] = infop->start_stack; |
| 978 | } |
| 979 | |
| 980 | #define USE_ELF_CORE_DUMP |
| 981 | #define ELF_EXEC_PAGESIZE 8192 |
| 982 | |
| 983 | /* See linux kernel arch/openrisc/include/asm/elf.h. */ |
| 984 | #define ELF_NREG 34 /* gprs and pc, sr */ |
| 985 | typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
| 986 | |
| 987 | static void elf_core_copy_regs(target_elf_gregset_t *regs, |
| 988 | const CPUOpenRISCState *env) |
| 989 | { |
| 990 | int i; |
| 991 | |
| 992 | for (i = 0; i < 32; i++) { |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 993 | (*regs)[i] = tswapreg(env->gpr[i]); |
Jia Liu | d962783 | 2012-07-20 15:50:52 +0800 | [diff] [blame] | 994 | } |
| 995 | |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 996 | (*regs)[32] = tswapreg(env->pc); |
| 997 | (*regs)[33] = tswapreg(env->sr); |
Jia Liu | d962783 | 2012-07-20 15:50:52 +0800 | [diff] [blame] | 998 | } |
| 999 | #define ELF_HWCAP 0 |
| 1000 | #define ELF_PLATFORM NULL |
| 1001 | |
| 1002 | #endif /* TARGET_OPENRISC */ |
| 1003 | |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1004 | #ifdef TARGET_SH4 |
| 1005 | |
| 1006 | #define ELF_START_MMAP 0x80000000 |
| 1007 | |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1008 | #define ELF_CLASS ELFCLASS32 |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1009 | #define ELF_ARCH EM_SH |
| 1010 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1011 | static inline void init_thread(struct target_pt_regs *regs, |
| 1012 | struct image_info *infop) |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1013 | { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1014 | /* Check other registers XXXXX */ |
| 1015 | regs->pc = infop->entry; |
| 1016 | regs->regs[15] = infop->start_stack; |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1017 | } |
| 1018 | |
Nathan Froyd | 7631c97 | 2009-12-11 09:04:51 -0800 | [diff] [blame] | 1019 | /* See linux kernel: arch/sh/include/asm/elf.h. */ |
| 1020 | #define ELF_NREG 23 |
| 1021 | typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
| 1022 | |
| 1023 | /* See linux kernel: arch/sh/include/asm/ptrace.h. */ |
| 1024 | enum { |
| 1025 | TARGET_REG_PC = 16, |
| 1026 | TARGET_REG_PR = 17, |
| 1027 | TARGET_REG_SR = 18, |
| 1028 | TARGET_REG_GBR = 19, |
| 1029 | TARGET_REG_MACH = 20, |
| 1030 | TARGET_REG_MACL = 21, |
| 1031 | TARGET_REG_SYSCALL = 22 |
| 1032 | }; |
| 1033 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1034 | static inline void elf_core_copy_regs(target_elf_gregset_t *regs, |
Andreas Färber | 0539024 | 2012-02-25 03:37:53 +0100 | [diff] [blame] | 1035 | const CPUSH4State *env) |
Nathan Froyd | 7631c97 | 2009-12-11 09:04:51 -0800 | [diff] [blame] | 1036 | { |
| 1037 | int i; |
| 1038 | |
| 1039 | for (i = 0; i < 16; i++) { |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 1040 | (*regs[i]) = tswapreg(env->gregs[i]); |
Nathan Froyd | 7631c97 | 2009-12-11 09:04:51 -0800 | [diff] [blame] | 1041 | } |
| 1042 | |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 1043 | (*regs)[TARGET_REG_PC] = tswapreg(env->pc); |
| 1044 | (*regs)[TARGET_REG_PR] = tswapreg(env->pr); |
| 1045 | (*regs)[TARGET_REG_SR] = tswapreg(env->sr); |
| 1046 | (*regs)[TARGET_REG_GBR] = tswapreg(env->gbr); |
| 1047 | (*regs)[TARGET_REG_MACH] = tswapreg(env->mach); |
| 1048 | (*regs)[TARGET_REG_MACL] = tswapreg(env->macl); |
Nathan Froyd | 7631c97 | 2009-12-11 09:04:51 -0800 | [diff] [blame] | 1049 | (*regs)[TARGET_REG_SYSCALL] = 0; /* FIXME */ |
| 1050 | } |
| 1051 | |
| 1052 | #define USE_ELF_CORE_DUMP |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1053 | #define ELF_EXEC_PAGESIZE 4096 |
| 1054 | |
Richard Henderson | e42fd94 | 2015-05-23 15:06:54 -0700 | [diff] [blame] | 1055 | enum { |
| 1056 | SH_CPU_HAS_FPU = 0x0001, /* Hardware FPU support */ |
| 1057 | SH_CPU_HAS_P2_FLUSH_BUG = 0x0002, /* Need to flush the cache in P2 area */ |
| 1058 | SH_CPU_HAS_MMU_PAGE_ASSOC = 0x0004, /* SH3: TLB way selection bit support */ |
| 1059 | SH_CPU_HAS_DSP = 0x0008, /* SH-DSP: DSP support */ |
| 1060 | SH_CPU_HAS_PERF_COUNTER = 0x0010, /* Hardware performance counters */ |
| 1061 | SH_CPU_HAS_PTEA = 0x0020, /* PTEA register */ |
| 1062 | SH_CPU_HAS_LLSC = 0x0040, /* movli.l/movco.l */ |
| 1063 | SH_CPU_HAS_L2_CACHE = 0x0080, /* Secondary cache / URAM */ |
| 1064 | SH_CPU_HAS_OP32 = 0x0100, /* 32-bit instruction support */ |
| 1065 | SH_CPU_HAS_PTEAEX = 0x0200, /* PTE ASID Extension support */ |
| 1066 | }; |
| 1067 | |
| 1068 | #define ELF_HWCAP get_elf_hwcap() |
| 1069 | |
| 1070 | static uint32_t get_elf_hwcap(void) |
| 1071 | { |
| 1072 | SuperHCPU *cpu = SUPERH_CPU(thread_cpu); |
| 1073 | uint32_t hwcap = 0; |
| 1074 | |
| 1075 | hwcap |= SH_CPU_HAS_FPU; |
| 1076 | |
| 1077 | if (cpu->env.features & SH_FEATURE_SH4A) { |
| 1078 | hwcap |= SH_CPU_HAS_LLSC; |
| 1079 | } |
| 1080 | |
| 1081 | return hwcap; |
| 1082 | } |
| 1083 | |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1084 | #endif |
| 1085 | |
ths | 48733d1 | 2007-10-08 13:36:46 +0000 | [diff] [blame] | 1086 | #ifdef TARGET_CRIS |
| 1087 | |
| 1088 | #define ELF_START_MMAP 0x80000000 |
| 1089 | |
ths | 48733d1 | 2007-10-08 13:36:46 +0000 | [diff] [blame] | 1090 | #define ELF_CLASS ELFCLASS32 |
ths | 48733d1 | 2007-10-08 13:36:46 +0000 | [diff] [blame] | 1091 | #define ELF_ARCH EM_CRIS |
| 1092 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1093 | static inline void init_thread(struct target_pt_regs *regs, |
| 1094 | struct image_info *infop) |
ths | 48733d1 | 2007-10-08 13:36:46 +0000 | [diff] [blame] | 1095 | { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1096 | regs->erp = infop->entry; |
ths | 48733d1 | 2007-10-08 13:36:46 +0000 | [diff] [blame] | 1097 | } |
| 1098 | |
ths | 48733d1 | 2007-10-08 13:36:46 +0000 | [diff] [blame] | 1099 | #define ELF_EXEC_PAGESIZE 8192 |
| 1100 | |
| 1101 | #endif |
| 1102 | |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 1103 | #ifdef TARGET_M68K |
| 1104 | |
| 1105 | #define ELF_START_MMAP 0x80000000 |
| 1106 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1107 | #define ELF_CLASS ELFCLASS32 |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1108 | #define ELF_ARCH EM_68K |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 1109 | |
| 1110 | /* ??? Does this need to do anything? |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1111 | #define ELF_PLAT_INIT(_r) */ |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 1112 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1113 | static inline void init_thread(struct target_pt_regs *regs, |
| 1114 | struct image_info *infop) |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 1115 | { |
| 1116 | regs->usp = infop->start_stack; |
| 1117 | regs->sr = 0; |
| 1118 | regs->pc = infop->entry; |
| 1119 | } |
| 1120 | |
Nathan Froyd | 7a93cc5 | 2009-12-11 09:04:50 -0800 | [diff] [blame] | 1121 | /* See linux kernel: arch/m68k/include/asm/elf.h. */ |
| 1122 | #define ELF_NREG 20 |
| 1123 | typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
| 1124 | |
Andreas Färber | 0539024 | 2012-02-25 03:37:53 +0100 | [diff] [blame] | 1125 | static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUM68KState *env) |
Nathan Froyd | 7a93cc5 | 2009-12-11 09:04:50 -0800 | [diff] [blame] | 1126 | { |
Paolo Bonzini | 86cd7b2 | 2013-04-17 16:26:38 +0200 | [diff] [blame] | 1127 | (*regs)[0] = tswapreg(env->dregs[1]); |
| 1128 | (*regs)[1] = tswapreg(env->dregs[2]); |
| 1129 | (*regs)[2] = tswapreg(env->dregs[3]); |
| 1130 | (*regs)[3] = tswapreg(env->dregs[4]); |
| 1131 | (*regs)[4] = tswapreg(env->dregs[5]); |
| 1132 | (*regs)[5] = tswapreg(env->dregs[6]); |
| 1133 | (*regs)[6] = tswapreg(env->dregs[7]); |
| 1134 | (*regs)[7] = tswapreg(env->aregs[0]); |
| 1135 | (*regs)[8] = tswapreg(env->aregs[1]); |
| 1136 | (*regs)[9] = tswapreg(env->aregs[2]); |
| 1137 | (*regs)[10] = tswapreg(env->aregs[3]); |
| 1138 | (*regs)[11] = tswapreg(env->aregs[4]); |
| 1139 | (*regs)[12] = tswapreg(env->aregs[5]); |
| 1140 | (*regs)[13] = tswapreg(env->aregs[6]); |
| 1141 | (*regs)[14] = tswapreg(env->dregs[0]); |
| 1142 | (*regs)[15] = tswapreg(env->aregs[7]); |
| 1143 | (*regs)[16] = tswapreg(env->dregs[0]); /* FIXME: orig_d0 */ |
| 1144 | (*regs)[17] = tswapreg(env->sr); |
| 1145 | (*regs)[18] = tswapreg(env->pc); |
Nathan Froyd | 7a93cc5 | 2009-12-11 09:04:50 -0800 | [diff] [blame] | 1146 | (*regs)[19] = 0; /* FIXME: regs->format | regs->vector */ |
| 1147 | } |
| 1148 | |
| 1149 | #define USE_ELF_CORE_DUMP |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1150 | #define ELF_EXEC_PAGESIZE 8192 |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 1151 | |
| 1152 | #endif |
| 1153 | |
j_mayer | 7a3148a | 2007-04-05 07:13:51 +0000 | [diff] [blame] | 1154 | #ifdef TARGET_ALPHA |
| 1155 | |
| 1156 | #define ELF_START_MMAP (0x30000000000ULL) |
| 1157 | |
j_mayer | 7a3148a | 2007-04-05 07:13:51 +0000 | [diff] [blame] | 1158 | #define ELF_CLASS ELFCLASS64 |
j_mayer | 7a3148a | 2007-04-05 07:13:51 +0000 | [diff] [blame] | 1159 | #define ELF_ARCH EM_ALPHA |
| 1160 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1161 | static inline void init_thread(struct target_pt_regs *regs, |
| 1162 | struct image_info *infop) |
j_mayer | 7a3148a | 2007-04-05 07:13:51 +0000 | [diff] [blame] | 1163 | { |
| 1164 | regs->pc = infop->entry; |
| 1165 | regs->ps = 8; |
| 1166 | regs->usp = infop->start_stack; |
j_mayer | 7a3148a | 2007-04-05 07:13:51 +0000 | [diff] [blame] | 1167 | } |
| 1168 | |
j_mayer | 7a3148a | 2007-04-05 07:13:51 +0000 | [diff] [blame] | 1169 | #define ELF_EXEC_PAGESIZE 8192 |
| 1170 | |
| 1171 | #endif /* TARGET_ALPHA */ |
| 1172 | |
Ulrich Hecht | a4c075f | 2009-07-24 16:57:31 +0200 | [diff] [blame] | 1173 | #ifdef TARGET_S390X |
| 1174 | |
| 1175 | #define ELF_START_MMAP (0x20000000000ULL) |
| 1176 | |
Ulrich Hecht | a4c075f | 2009-07-24 16:57:31 +0200 | [diff] [blame] | 1177 | #define ELF_CLASS ELFCLASS64 |
| 1178 | #define ELF_DATA ELFDATA2MSB |
| 1179 | #define ELF_ARCH EM_S390 |
| 1180 | |
| 1181 | static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) |
| 1182 | { |
| 1183 | regs->psw.addr = infop->entry; |
| 1184 | regs->psw.mask = PSW_MASK_64 | PSW_MASK_32; |
| 1185 | regs->gprs[15] = infop->start_stack; |
| 1186 | } |
| 1187 | |
| 1188 | #endif /* TARGET_S390X */ |
| 1189 | |
Chen Gang | b16189b | 2015-08-21 05:36:37 +0800 | [diff] [blame] | 1190 | #ifdef TARGET_TILEGX |
| 1191 | |
| 1192 | /* 42 bits real used address, a half for user mode */ |
| 1193 | #define ELF_START_MMAP (0x00000020000000000ULL) |
| 1194 | |
| 1195 | #define elf_check_arch(x) ((x) == EM_TILEGX) |
| 1196 | |
| 1197 | #define ELF_CLASS ELFCLASS64 |
| 1198 | #define ELF_DATA ELFDATA2LSB |
| 1199 | #define ELF_ARCH EM_TILEGX |
| 1200 | |
| 1201 | static inline void init_thread(struct target_pt_regs *regs, |
| 1202 | struct image_info *infop) |
| 1203 | { |
| 1204 | regs->pc = infop->entry; |
| 1205 | regs->sp = infop->start_stack; |
| 1206 | |
| 1207 | } |
| 1208 | |
| 1209 | #define ELF_EXEC_PAGESIZE 65536 /* TILE-Gx page size is 64KB */ |
| 1210 | |
| 1211 | #endif /* TARGET_TILEGX */ |
| 1212 | |
bellard | 15338fd | 2005-11-26 11:41:16 +0000 | [diff] [blame] | 1213 | #ifndef ELF_PLATFORM |
| 1214 | #define ELF_PLATFORM (NULL) |
| 1215 | #endif |
| 1216 | |
Peter Crosthwaite | 75be901 | 2015-07-19 05:02:37 -0700 | [diff] [blame] | 1217 | #ifndef ELF_MACHINE |
| 1218 | #define ELF_MACHINE ELF_ARCH |
| 1219 | #endif |
| 1220 | |
Peter Crosthwaite | d276a60 | 2015-07-19 11:29:32 -0700 | [diff] [blame] | 1221 | #ifndef elf_check_arch |
| 1222 | #define elf_check_arch(x) ((x) == ELF_ARCH) |
| 1223 | #endif |
| 1224 | |
bellard | 15338fd | 2005-11-26 11:41:16 +0000 | [diff] [blame] | 1225 | #ifndef ELF_HWCAP |
| 1226 | #define ELF_HWCAP 0 |
| 1227 | #endif |
| 1228 | |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 1229 | #ifdef TARGET_ABI32 |
blueswir1 | cb33da5 | 2007-10-09 16:34:29 +0000 | [diff] [blame] | 1230 | #undef ELF_CLASS |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 1231 | #define ELF_CLASS ELFCLASS32 |
blueswir1 | cb33da5 | 2007-10-09 16:34:29 +0000 | [diff] [blame] | 1232 | #undef bswaptls |
| 1233 | #define bswaptls(ptr) bswap32s(ptr) |
| 1234 | #endif |
| 1235 | |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1236 | #include "elf.h" |
bellard | 09bfb05 | 2003-04-10 00:03:40 +0000 | [diff] [blame] | 1237 | |
bellard | 09bfb05 | 2003-04-10 00:03:40 +0000 | [diff] [blame] | 1238 | struct exec |
| 1239 | { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1240 | unsigned int a_info; /* Use macros N_MAGIC, etc for access */ |
| 1241 | unsigned int a_text; /* length of text, in bytes */ |
| 1242 | unsigned int a_data; /* length of data, in bytes */ |
| 1243 | unsigned int a_bss; /* length of uninitialized data area, in bytes */ |
| 1244 | unsigned int a_syms; /* length of symbol table data in file, in bytes */ |
| 1245 | unsigned int a_entry; /* start address */ |
| 1246 | unsigned int a_trsize; /* length of relocation info for text, in bytes */ |
| 1247 | unsigned int a_drsize; /* length of relocation info for data, in bytes */ |
bellard | 09bfb05 | 2003-04-10 00:03:40 +0000 | [diff] [blame] | 1248 | }; |
| 1249 | |
| 1250 | |
| 1251 | #define N_MAGIC(exec) ((exec).a_info & 0xffff) |
| 1252 | #define OMAGIC 0407 |
| 1253 | #define NMAGIC 0410 |
| 1254 | #define ZMAGIC 0413 |
| 1255 | #define QMAGIC 0314 |
| 1256 | |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1257 | /* Necessary parameters */ |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 1258 | #define TARGET_ELF_EXEC_PAGESIZE TARGET_PAGE_SIZE |
Yongbok Kim | 79cb1f1 | 2015-04-20 16:15:20 +0100 | [diff] [blame] | 1259 | #define TARGET_ELF_PAGESTART(_v) ((_v) & \ |
| 1260 | ~(abi_ulong)(TARGET_ELF_EXEC_PAGESIZE-1)) |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 1261 | #define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE-1)) |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1262 | |
James Hogan | ad1c7e0 | 2014-03-25 21:47:28 +0000 | [diff] [blame] | 1263 | #define DLINFO_ITEMS 14 |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1264 | |
bellard | 09bfb05 | 2003-04-10 00:03:40 +0000 | [diff] [blame] | 1265 | static inline void memcpy_fromfs(void * to, const void * from, unsigned long n) |
| 1266 | { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1267 | memcpy(to, from, n); |
bellard | 09bfb05 | 2003-04-10 00:03:40 +0000 | [diff] [blame] | 1268 | } |
| 1269 | |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1270 | #ifdef BSWAP_NEEDED |
bellard | 92a31b1 | 2005-02-10 22:00:52 +0000 | [diff] [blame] | 1271 | static void bswap_ehdr(struct elfhdr *ehdr) |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1272 | { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1273 | bswap16s(&ehdr->e_type); /* Object file type */ |
| 1274 | bswap16s(&ehdr->e_machine); /* Architecture */ |
| 1275 | bswap32s(&ehdr->e_version); /* Object file version */ |
| 1276 | bswaptls(&ehdr->e_entry); /* Entry point virtual address */ |
| 1277 | bswaptls(&ehdr->e_phoff); /* Program header table file offset */ |
| 1278 | bswaptls(&ehdr->e_shoff); /* Section header table file offset */ |
| 1279 | bswap32s(&ehdr->e_flags); /* Processor-specific flags */ |
| 1280 | bswap16s(&ehdr->e_ehsize); /* ELF header size in bytes */ |
| 1281 | bswap16s(&ehdr->e_phentsize); /* Program header table entry size */ |
| 1282 | bswap16s(&ehdr->e_phnum); /* Program header table entry count */ |
| 1283 | bswap16s(&ehdr->e_shentsize); /* Section header table entry size */ |
| 1284 | bswap16s(&ehdr->e_shnum); /* Section header table entry count */ |
| 1285 | bswap16s(&ehdr->e_shstrndx); /* Section header string table index */ |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1286 | } |
| 1287 | |
Richard Henderson | 991f8f0 | 2010-07-27 10:25:32 -0700 | [diff] [blame] | 1288 | static void bswap_phdr(struct elf_phdr *phdr, int phnum) |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1289 | { |
Richard Henderson | 991f8f0 | 2010-07-27 10:25:32 -0700 | [diff] [blame] | 1290 | int i; |
| 1291 | for (i = 0; i < phnum; ++i, ++phdr) { |
| 1292 | bswap32s(&phdr->p_type); /* Segment type */ |
| 1293 | bswap32s(&phdr->p_flags); /* Segment flags */ |
| 1294 | bswaptls(&phdr->p_offset); /* Segment file offset */ |
| 1295 | bswaptls(&phdr->p_vaddr); /* Segment virtual address */ |
| 1296 | bswaptls(&phdr->p_paddr); /* Segment physical address */ |
| 1297 | bswaptls(&phdr->p_filesz); /* Segment size in file */ |
| 1298 | bswaptls(&phdr->p_memsz); /* Segment size in memory */ |
| 1299 | bswaptls(&phdr->p_align); /* Segment alignment */ |
| 1300 | } |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1301 | } |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 1302 | |
Richard Henderson | 991f8f0 | 2010-07-27 10:25:32 -0700 | [diff] [blame] | 1303 | static void bswap_shdr(struct elf_shdr *shdr, int shnum) |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 1304 | { |
Richard Henderson | 991f8f0 | 2010-07-27 10:25:32 -0700 | [diff] [blame] | 1305 | int i; |
| 1306 | for (i = 0; i < shnum; ++i, ++shdr) { |
| 1307 | bswap32s(&shdr->sh_name); |
| 1308 | bswap32s(&shdr->sh_type); |
| 1309 | bswaptls(&shdr->sh_flags); |
| 1310 | bswaptls(&shdr->sh_addr); |
| 1311 | bswaptls(&shdr->sh_offset); |
| 1312 | bswaptls(&shdr->sh_size); |
| 1313 | bswap32s(&shdr->sh_link); |
| 1314 | bswap32s(&shdr->sh_info); |
| 1315 | bswaptls(&shdr->sh_addralign); |
| 1316 | bswaptls(&shdr->sh_entsize); |
| 1317 | } |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 1318 | } |
| 1319 | |
j_mayer | 7a3148a | 2007-04-05 07:13:51 +0000 | [diff] [blame] | 1320 | static void bswap_sym(struct elf_sym *sym) |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 1321 | { |
| 1322 | bswap32s(&sym->st_name); |
j_mayer | 7a3148a | 2007-04-05 07:13:51 +0000 | [diff] [blame] | 1323 | bswaptls(&sym->st_value); |
| 1324 | bswaptls(&sym->st_size); |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 1325 | bswap16s(&sym->st_shndx); |
| 1326 | } |
Richard Henderson | 991f8f0 | 2010-07-27 10:25:32 -0700 | [diff] [blame] | 1327 | #else |
| 1328 | static inline void bswap_ehdr(struct elfhdr *ehdr) { } |
| 1329 | static inline void bswap_phdr(struct elf_phdr *phdr, int phnum) { } |
| 1330 | static inline void bswap_shdr(struct elf_shdr *shdr, int shnum) { } |
| 1331 | static inline void bswap_sym(struct elf_sym *sym) { } |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1332 | #endif |
| 1333 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 1334 | #ifdef USE_ELF_CORE_DUMP |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 1335 | static int elf_core_dump(int, const CPUArchState *); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 1336 | #endif /* USE_ELF_CORE_DUMP */ |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1337 | static void load_symbols(struct elfhdr *hdr, int fd, abi_ulong load_bias); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 1338 | |
Richard Henderson | 9058abd | 2010-07-27 10:25:34 -0700 | [diff] [blame] | 1339 | /* Verify the portions of EHDR within E_IDENT for the target. |
| 1340 | This can be performed before bswapping the entire header. */ |
| 1341 | static bool elf_check_ident(struct elfhdr *ehdr) |
| 1342 | { |
| 1343 | return (ehdr->e_ident[EI_MAG0] == ELFMAG0 |
| 1344 | && ehdr->e_ident[EI_MAG1] == ELFMAG1 |
| 1345 | && ehdr->e_ident[EI_MAG2] == ELFMAG2 |
| 1346 | && ehdr->e_ident[EI_MAG3] == ELFMAG3 |
| 1347 | && ehdr->e_ident[EI_CLASS] == ELF_CLASS |
| 1348 | && ehdr->e_ident[EI_DATA] == ELF_DATA |
| 1349 | && ehdr->e_ident[EI_VERSION] == EV_CURRENT); |
| 1350 | } |
| 1351 | |
| 1352 | /* Verify the portions of EHDR outside of E_IDENT for the target. |
| 1353 | This has to wait until after bswapping the header. */ |
| 1354 | static bool elf_check_ehdr(struct elfhdr *ehdr) |
| 1355 | { |
| 1356 | return (elf_check_arch(ehdr->e_machine) |
| 1357 | && ehdr->e_ehsize == sizeof(struct elfhdr) |
| 1358 | && ehdr->e_phentsize == sizeof(struct elf_phdr) |
Richard Henderson | 9058abd | 2010-07-27 10:25:34 -0700 | [diff] [blame] | 1359 | && (ehdr->e_type == ET_EXEC || ehdr->e_type == ET_DYN)); |
| 1360 | } |
| 1361 | |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1362 | /* |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 1363 | * 'copy_elf_strings()' copies argument/envelope strings from user |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1364 | * memory to free pages in kernel mem. These are in a format ready |
| 1365 | * to be put directly into the top of new user memory. |
| 1366 | * |
| 1367 | */ |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 1368 | static abi_ulong copy_elf_strings(int argc, char **argv, char *scratch, |
| 1369 | abi_ulong p, abi_ulong stack_limit) |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1370 | { |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 1371 | char *tmp; |
| 1372 | int len, offset; |
| 1373 | abi_ulong top = p; |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1374 | |
| 1375 | if (!p) { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1376 | return 0; /* bullet-proofing */ |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1377 | } |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 1378 | |
| 1379 | offset = ((p - 1) % TARGET_PAGE_SIZE) + 1; |
| 1380 | |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1381 | while (argc-- > 0) { |
bellard | edf779f | 2004-02-22 13:40:13 +0000 | [diff] [blame] | 1382 | tmp = argv[argc]; |
| 1383 | if (!tmp) { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1384 | fprintf(stderr, "VFS: argc is wrong"); |
| 1385 | exit(-1); |
| 1386 | } |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 1387 | len = strlen(tmp) + 1; |
| 1388 | tmp += len; |
| 1389 | |
| 1390 | if (len > (p - stack_limit)) { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1391 | return 0; |
| 1392 | } |
| 1393 | while (len) { |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 1394 | int bytes_to_copy = (len > offset) ? offset : len; |
| 1395 | tmp -= bytes_to_copy; |
| 1396 | p -= bytes_to_copy; |
| 1397 | offset -= bytes_to_copy; |
| 1398 | len -= bytes_to_copy; |
| 1399 | |
| 1400 | memcpy_fromfs(scratch + offset, tmp, bytes_to_copy); |
| 1401 | |
| 1402 | if (offset == 0) { |
| 1403 | memcpy_to_target(p, scratch, top - p); |
| 1404 | top = p; |
| 1405 | offset = TARGET_PAGE_SIZE; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1406 | } |
| 1407 | } |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1408 | } |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 1409 | if (offset) { |
| 1410 | memcpy_to_target(p, scratch + offset, top - p); |
| 1411 | } |
| 1412 | |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1413 | return p; |
| 1414 | } |
| 1415 | |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 1416 | /* Older linux kernels provide up to MAX_ARG_PAGES (default: 32) of |
| 1417 | * argument/environment space. Newer kernels (>2.6.33) allow more, |
| 1418 | * dependent on stack size, but guarantee at least 32 pages for |
| 1419 | * backwards compatibility. |
| 1420 | */ |
| 1421 | #define STACK_LOWER_LIMIT (32 * TARGET_PAGE_SIZE) |
| 1422 | |
| 1423 | static abi_ulong setup_arg_pages(struct linux_binprm *bprm, |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 1424 | struct image_info *info) |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 1425 | { |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 1426 | abi_ulong size, error, guard; |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1427 | |
Richard Henderson | 703e0e8 | 2010-03-19 14:21:13 -0700 | [diff] [blame] | 1428 | size = guest_stack_size; |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 1429 | if (size < STACK_LOWER_LIMIT) { |
| 1430 | size = STACK_LOWER_LIMIT; |
Richard Henderson | 60dcbcb | 2010-07-27 10:25:35 -0700 | [diff] [blame] | 1431 | } |
| 1432 | guard = TARGET_PAGE_SIZE; |
| 1433 | if (guard < qemu_real_host_page_size) { |
| 1434 | guard = qemu_real_host_page_size; |
| 1435 | } |
| 1436 | |
| 1437 | error = target_mmap(0, size + guard, PROT_READ | PROT_WRITE, |
| 1438 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
bellard | 09bfb05 | 2003-04-10 00:03:40 +0000 | [diff] [blame] | 1439 | if (error == -1) { |
Richard Henderson | 60dcbcb | 2010-07-27 10:25:35 -0700 | [diff] [blame] | 1440 | perror("mmap stack"); |
bellard | 09bfb05 | 2003-04-10 00:03:40 +0000 | [diff] [blame] | 1441 | exit(-1); |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1442 | } |
bellard | 09bfb05 | 2003-04-10 00:03:40 +0000 | [diff] [blame] | 1443 | |
Richard Henderson | 60dcbcb | 2010-07-27 10:25:35 -0700 | [diff] [blame] | 1444 | /* We reserve one extra page at the top of the stack as guard. */ |
| 1445 | target_mprotect(error, guard, PROT_NONE); |
| 1446 | |
| 1447 | info->stack_limit = error + guard; |
bellard | 09bfb05 | 2003-04-10 00:03:40 +0000 | [diff] [blame] | 1448 | |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 1449 | return info->stack_limit + size - sizeof(void *); |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1450 | } |
| 1451 | |
Richard Henderson | cf129f3 | 2010-07-27 10:25:27 -0700 | [diff] [blame] | 1452 | /* Map and zero the bss. We need to explicitly zero any fractional pages |
| 1453 | after the data section (i.e. bss). */ |
| 1454 | static void zero_bss(abi_ulong elf_bss, abi_ulong last_bss, int prot) |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1455 | { |
Richard Henderson | cf129f3 | 2010-07-27 10:25:27 -0700 | [diff] [blame] | 1456 | uintptr_t host_start, host_map_start, host_end; |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1457 | |
Richard Henderson | cf129f3 | 2010-07-27 10:25:27 -0700 | [diff] [blame] | 1458 | last_bss = TARGET_PAGE_ALIGN(last_bss); |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1459 | |
Richard Henderson | cf129f3 | 2010-07-27 10:25:27 -0700 | [diff] [blame] | 1460 | /* ??? There is confusion between qemu_real_host_page_size and |
| 1461 | qemu_host_page_size here and elsewhere in target_mmap, which |
| 1462 | may lead to the end of the data section mapping from the file |
| 1463 | not being mapped. At least there was an explicit test and |
| 1464 | comment for that here, suggesting that "the file size must |
| 1465 | be known". The comment probably pre-dates the introduction |
| 1466 | of the fstat system call in target_mmap which does in fact |
| 1467 | find out the size. What isn't clear is if the workaround |
| 1468 | here is still actually needed. For now, continue with it, |
| 1469 | but merge it with the "normal" mmap that would allocate the bss. */ |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1470 | |
Richard Henderson | cf129f3 | 2010-07-27 10:25:27 -0700 | [diff] [blame] | 1471 | host_start = (uintptr_t) g2h(elf_bss); |
| 1472 | host_end = (uintptr_t) g2h(last_bss); |
Paolo Bonzini | 0c2d70c | 2015-12-02 13:00:54 +0100 | [diff] [blame] | 1473 | host_map_start = REAL_HOST_PAGE_ALIGN(host_start); |
ths | 768a4a3 | 2006-12-14 13:32:11 +0000 | [diff] [blame] | 1474 | |
Richard Henderson | cf129f3 | 2010-07-27 10:25:27 -0700 | [diff] [blame] | 1475 | if (host_map_start < host_end) { |
| 1476 | void *p = mmap((void *)host_map_start, host_end - host_map_start, |
| 1477 | prot, MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
| 1478 | if (p == MAP_FAILED) { |
| 1479 | perror("cannot mmap brk"); |
| 1480 | exit(-1); |
bellard | 853d6f7 | 2003-09-30 20:58:32 +0000 | [diff] [blame] | 1481 | } |
Tom Musta | f46e9a0 | 2014-05-29 09:12:23 -0500 | [diff] [blame] | 1482 | } |
bellard | 853d6f7 | 2003-09-30 20:58:32 +0000 | [diff] [blame] | 1483 | |
Tom Musta | f46e9a0 | 2014-05-29 09:12:23 -0500 | [diff] [blame] | 1484 | /* Ensure that the bss page(s) are valid */ |
| 1485 | if ((page_get_flags(last_bss-1) & prot) != prot) { |
| 1486 | page_set_flags(elf_bss & TARGET_PAGE_MASK, last_bss, prot | PAGE_VALID); |
Richard Henderson | cf129f3 | 2010-07-27 10:25:27 -0700 | [diff] [blame] | 1487 | } |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1488 | |
Richard Henderson | cf129f3 | 2010-07-27 10:25:27 -0700 | [diff] [blame] | 1489 | if (host_start < host_map_start) { |
| 1490 | memset((void *)host_start, 0, host_map_start - host_start); |
| 1491 | } |
| 1492 | } |
bellard | edf779f | 2004-02-22 13:40:13 +0000 | [diff] [blame] | 1493 | |
Mike Frysinger | 1af02e8 | 2011-02-07 01:05:50 -0500 | [diff] [blame] | 1494 | #ifdef CONFIG_USE_FDPIC |
| 1495 | static abi_ulong loader_build_fdpic_loadmap(struct image_info *info, abi_ulong sp) |
| 1496 | { |
| 1497 | uint16_t n; |
| 1498 | struct elf32_fdpic_loadseg *loadsegs = info->loadsegs; |
| 1499 | |
| 1500 | /* elf32_fdpic_loadseg */ |
| 1501 | n = info->nsegs; |
| 1502 | while (n--) { |
| 1503 | sp -= 12; |
| 1504 | put_user_u32(loadsegs[n].addr, sp+0); |
| 1505 | put_user_u32(loadsegs[n].p_vaddr, sp+4); |
| 1506 | put_user_u32(loadsegs[n].p_memsz, sp+8); |
| 1507 | } |
| 1508 | |
| 1509 | /* elf32_fdpic_loadmap */ |
| 1510 | sp -= 4; |
| 1511 | put_user_u16(0, sp+0); /* version */ |
| 1512 | put_user_u16(info->nsegs, sp+2); /* nsegs */ |
| 1513 | |
| 1514 | info->personality = PER_LINUX_FDPIC; |
| 1515 | info->loadmap_addr = sp; |
| 1516 | |
| 1517 | return sp; |
| 1518 | } |
| 1519 | #endif |
| 1520 | |
blueswir1 | 992f48a | 2007-10-14 16:27:31 +0000 | [diff] [blame] | 1521 | static abi_ulong create_elf_tables(abi_ulong p, int argc, int envc, |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1522 | struct elfhdr *exec, |
| 1523 | struct image_info *info, |
| 1524 | struct image_info *interp_info) |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 1525 | { |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1526 | abi_ulong sp; |
Alexander Graf | 125b0f5 | 2012-01-28 21:12:14 +0200 | [diff] [blame] | 1527 | abi_ulong sp_auxv; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1528 | int size; |
Laurent ALFONSI | 14322ba | 2011-06-20 08:43:13 +0200 | [diff] [blame] | 1529 | int i; |
| 1530 | abi_ulong u_rand_bytes; |
| 1531 | uint8_t k_rand_bytes[16]; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1532 | abi_ulong u_platform; |
| 1533 | const char *k_platform; |
| 1534 | const int n = sizeof(elf_addr_t); |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 1535 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1536 | sp = p; |
Mike Frysinger | 1af02e8 | 2011-02-07 01:05:50 -0500 | [diff] [blame] | 1537 | |
| 1538 | #ifdef CONFIG_USE_FDPIC |
| 1539 | /* Needs to be before we load the env/argc/... */ |
| 1540 | if (elf_is_fdpic(exec)) { |
| 1541 | /* Need 4 byte alignment for these structs */ |
| 1542 | sp &= ~3; |
| 1543 | sp = loader_build_fdpic_loadmap(info, sp); |
| 1544 | info->other_info = interp_info; |
| 1545 | if (interp_info) { |
| 1546 | interp_info->other_info = info; |
| 1547 | sp = loader_build_fdpic_loadmap(interp_info, sp); |
| 1548 | } |
| 1549 | } |
| 1550 | #endif |
| 1551 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1552 | u_platform = 0; |
| 1553 | k_platform = ELF_PLATFORM; |
| 1554 | if (k_platform) { |
| 1555 | size_t len = strlen(k_platform) + 1; |
| 1556 | sp -= (len + n - 1) & ~(n - 1); |
| 1557 | u_platform = sp; |
| 1558 | /* FIXME - check return value of memcpy_to_target() for failure */ |
| 1559 | memcpy_to_target(sp, k_platform, len); |
| 1560 | } |
Laurent ALFONSI | 14322ba | 2011-06-20 08:43:13 +0200 | [diff] [blame] | 1561 | |
| 1562 | /* |
| 1563 | * Generate 16 random bytes for userspace PRNG seeding (not |
| 1564 | * cryptically secure but it's not the aim of QEMU). |
| 1565 | */ |
Laurent ALFONSI | 14322ba | 2011-06-20 08:43:13 +0200 | [diff] [blame] | 1566 | for (i = 0; i < 16; i++) { |
| 1567 | k_rand_bytes[i] = rand(); |
| 1568 | } |
| 1569 | sp -= 16; |
| 1570 | u_rand_bytes = sp; |
| 1571 | /* FIXME - check return value of memcpy_to_target() for failure */ |
| 1572 | memcpy_to_target(sp, k_rand_bytes, 16); |
| 1573 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1574 | /* |
| 1575 | * Force 16 byte _final_ alignment here for generality. |
| 1576 | */ |
| 1577 | sp = sp &~ (abi_ulong)15; |
| 1578 | size = (DLINFO_ITEMS + 1) * 2; |
| 1579 | if (k_platform) |
| 1580 | size += 2; |
bellard | f515528 | 2004-01-04 15:46:50 +0000 | [diff] [blame] | 1581 | #ifdef DLINFO_ARCH_ITEMS |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1582 | size += DLINFO_ARCH_ITEMS * 2; |
bellard | f515528 | 2004-01-04 15:46:50 +0000 | [diff] [blame] | 1583 | #endif |
Peter Maydell | ad6919d | 2014-05-02 14:45:15 +0100 | [diff] [blame] | 1584 | #ifdef ELF_HWCAP2 |
| 1585 | size += 2; |
| 1586 | #endif |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1587 | size += envc + argc + 2; |
Richard Henderson | b9329d4 | 2010-07-27 10:25:36 -0700 | [diff] [blame] | 1588 | size += 1; /* argc itself */ |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1589 | size *= n; |
| 1590 | if (size & 15) |
| 1591 | sp -= 16 - (size & 15); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1592 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1593 | /* This is correct because Linux defines |
| 1594 | * elf_addr_t as Elf32_Off / Elf64_Off |
| 1595 | */ |
| 1596 | #define NEW_AUX_ENT(id, val) do { \ |
| 1597 | sp -= n; put_user_ual(val, sp); \ |
| 1598 | sp -= n; put_user_ual(id, sp); \ |
| 1599 | } while(0) |
bellard | 2f61969 | 2007-11-16 10:46:05 +0000 | [diff] [blame] | 1600 | |
Alexander Graf | 125b0f5 | 2012-01-28 21:12:14 +0200 | [diff] [blame] | 1601 | sp_auxv = sp; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1602 | NEW_AUX_ENT (AT_NULL, 0); |
bellard | f515528 | 2004-01-04 15:46:50 +0000 | [diff] [blame] | 1603 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1604 | /* There must be exactly DLINFO_ITEMS entries here. */ |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1605 | NEW_AUX_ENT(AT_PHDR, (abi_ulong)(info->load_addr + exec->e_phoff)); |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1606 | NEW_AUX_ENT(AT_PHENT, (abi_ulong)(sizeof (struct elf_phdr))); |
| 1607 | NEW_AUX_ENT(AT_PHNUM, (abi_ulong)(exec->e_phnum)); |
Alexander Graf | a70daba3 | 2014-06-05 11:39:43 +0200 | [diff] [blame] | 1608 | NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(MAX(TARGET_PAGE_SIZE, getpagesize()))); |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1609 | NEW_AUX_ENT(AT_BASE, (abi_ulong)(interp_info ? interp_info->load_addr : 0)); |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1610 | NEW_AUX_ENT(AT_FLAGS, (abi_ulong)0); |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1611 | NEW_AUX_ENT(AT_ENTRY, info->entry); |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1612 | NEW_AUX_ENT(AT_UID, (abi_ulong) getuid()); |
| 1613 | NEW_AUX_ENT(AT_EUID, (abi_ulong) geteuid()); |
| 1614 | NEW_AUX_ENT(AT_GID, (abi_ulong) getgid()); |
| 1615 | NEW_AUX_ENT(AT_EGID, (abi_ulong) getegid()); |
| 1616 | NEW_AUX_ENT(AT_HWCAP, (abi_ulong) ELF_HWCAP); |
| 1617 | NEW_AUX_ENT(AT_CLKTCK, (abi_ulong) sysconf(_SC_CLK_TCK)); |
Laurent ALFONSI | 14322ba | 2011-06-20 08:43:13 +0200 | [diff] [blame] | 1618 | NEW_AUX_ENT(AT_RANDOM, (abi_ulong) u_rand_bytes); |
| 1619 | |
Peter Maydell | ad6919d | 2014-05-02 14:45:15 +0100 | [diff] [blame] | 1620 | #ifdef ELF_HWCAP2 |
| 1621 | NEW_AUX_ENT(AT_HWCAP2, (abi_ulong) ELF_HWCAP2); |
| 1622 | #endif |
| 1623 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1624 | if (k_platform) |
| 1625 | NEW_AUX_ENT(AT_PLATFORM, u_platform); |
bellard | f515528 | 2004-01-04 15:46:50 +0000 | [diff] [blame] | 1626 | #ifdef ARCH_DLINFO |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1627 | /* |
| 1628 | * ARCH_DLINFO must come last so platform specific code can enforce |
| 1629 | * special alignment requirements on the AUXV if necessary (eg. PPC). |
| 1630 | */ |
| 1631 | ARCH_DLINFO; |
bellard | f515528 | 2004-01-04 15:46:50 +0000 | [diff] [blame] | 1632 | #endif |
| 1633 | #undef NEW_AUX_ENT |
| 1634 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1635 | info->saved_auxv = sp; |
Alexander Graf | 125b0f5 | 2012-01-28 21:12:14 +0200 | [diff] [blame] | 1636 | info->auxv_len = sp_auxv - sp; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 1637 | |
Richard Henderson | b9329d4 | 2010-07-27 10:25:36 -0700 | [diff] [blame] | 1638 | sp = loader_build_argptr(envc, argc, sp, p, 0); |
James Hogan | 8c0f0a6 | 2014-03-25 23:21:50 +0000 | [diff] [blame] | 1639 | /* Check the right amount of stack was allocated for auxvec, envp & argv. */ |
| 1640 | assert(sp_auxv - sp == size); |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1641 | return sp; |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1642 | } |
| 1643 | |
Meador Inge | 806d102 | 2012-07-26 16:50:02 +0000 | [diff] [blame] | 1644 | #ifndef TARGET_HAS_VALIDATE_GUEST_SPACE |
Dr. David Alan Gilbert | 97cc756 | 2011-08-31 17:24:34 +0100 | [diff] [blame] | 1645 | /* If the guest doesn't have a validation function just agree */ |
Meador Inge | 806d102 | 2012-07-26 16:50:02 +0000 | [diff] [blame] | 1646 | static int validate_guest_space(unsigned long guest_base, |
| 1647 | unsigned long guest_size) |
Dr. David Alan Gilbert | 97cc756 | 2011-08-31 17:24:34 +0100 | [diff] [blame] | 1648 | { |
| 1649 | return 1; |
| 1650 | } |
| 1651 | #endif |
| 1652 | |
Meador Inge | dce1040 | 2012-07-26 16:50:01 +0000 | [diff] [blame] | 1653 | unsigned long init_guest_space(unsigned long host_start, |
| 1654 | unsigned long host_size, |
| 1655 | unsigned long guest_start, |
| 1656 | bool fixed) |
| 1657 | { |
| 1658 | unsigned long current_start, real_start; |
| 1659 | int flags; |
| 1660 | |
| 1661 | assert(host_start || host_size); |
| 1662 | |
| 1663 | /* If just a starting address is given, then just verify that |
| 1664 | * address. */ |
| 1665 | if (host_start && !host_size) { |
Meador Inge | 806d102 | 2012-07-26 16:50:02 +0000 | [diff] [blame] | 1666 | if (validate_guest_space(host_start, host_size) == 1) { |
Meador Inge | dce1040 | 2012-07-26 16:50:01 +0000 | [diff] [blame] | 1667 | return host_start; |
| 1668 | } else { |
| 1669 | return (unsigned long)-1; |
| 1670 | } |
| 1671 | } |
| 1672 | |
| 1673 | /* Setup the initial flags and start address. */ |
| 1674 | current_start = host_start & qemu_host_page_mask; |
| 1675 | flags = MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE; |
| 1676 | if (fixed) { |
| 1677 | flags |= MAP_FIXED; |
| 1678 | } |
| 1679 | |
| 1680 | /* Otherwise, a non-zero size region of memory needs to be mapped |
| 1681 | * and validated. */ |
| 1682 | while (1) { |
Meador Inge | 806d102 | 2012-07-26 16:50:02 +0000 | [diff] [blame] | 1683 | unsigned long real_size = host_size; |
| 1684 | |
Meador Inge | dce1040 | 2012-07-26 16:50:01 +0000 | [diff] [blame] | 1685 | /* Do not use mmap_find_vma here because that is limited to the |
| 1686 | * guest address space. We are going to make the |
| 1687 | * guest address space fit whatever we're given. |
| 1688 | */ |
| 1689 | real_start = (unsigned long) |
| 1690 | mmap((void *)current_start, host_size, PROT_NONE, flags, -1, 0); |
| 1691 | if (real_start == (unsigned long)-1) { |
| 1692 | return (unsigned long)-1; |
| 1693 | } |
| 1694 | |
Meador Inge | 806d102 | 2012-07-26 16:50:02 +0000 | [diff] [blame] | 1695 | /* Ensure the address is properly aligned. */ |
| 1696 | if (real_start & ~qemu_host_page_mask) { |
| 1697 | munmap((void *)real_start, host_size); |
| 1698 | real_size = host_size + qemu_host_page_size; |
| 1699 | real_start = (unsigned long) |
| 1700 | mmap((void *)real_start, real_size, PROT_NONE, flags, -1, 0); |
| 1701 | if (real_start == (unsigned long)-1) { |
| 1702 | return (unsigned long)-1; |
| 1703 | } |
| 1704 | real_start = HOST_PAGE_ALIGN(real_start); |
| 1705 | } |
| 1706 | |
| 1707 | /* Check to see if the address is valid. */ |
| 1708 | if (!host_start || real_start == current_start) { |
| 1709 | int valid = validate_guest_space(real_start - guest_start, |
| 1710 | real_size); |
| 1711 | if (valid == 1) { |
| 1712 | break; |
| 1713 | } else if (valid == -1) { |
| 1714 | return (unsigned long)-1; |
| 1715 | } |
| 1716 | /* valid == 0, so try again. */ |
Meador Inge | dce1040 | 2012-07-26 16:50:01 +0000 | [diff] [blame] | 1717 | } |
| 1718 | |
| 1719 | /* That address didn't work. Unmap and try a different one. |
| 1720 | * The address the host picked because is typically right at |
| 1721 | * the top of the host address space and leaves the guest with |
| 1722 | * no usable address space. Resort to a linear search. We |
| 1723 | * already compensated for mmap_min_addr, so this should not |
| 1724 | * happen often. Probably means we got unlucky and host |
| 1725 | * address space randomization put a shared library somewhere |
| 1726 | * inconvenient. |
| 1727 | */ |
| 1728 | munmap((void *)real_start, host_size); |
| 1729 | current_start += qemu_host_page_size; |
| 1730 | if (host_start == current_start) { |
| 1731 | /* Theoretically possible if host doesn't have any suitably |
| 1732 | * aligned areas. Normally the first mmap will fail. |
| 1733 | */ |
| 1734 | return (unsigned long)-1; |
| 1735 | } |
| 1736 | } |
| 1737 | |
Paolo Bonzini | 1382902 | 2015-11-13 12:32:19 +0100 | [diff] [blame] | 1738 | qemu_log_mask(CPU_LOG_PAGE, "Reserved 0x%lx bytes of guest address space\n", host_size); |
Meador Inge | 806d102 | 2012-07-26 16:50:02 +0000 | [diff] [blame] | 1739 | |
Meador Inge | dce1040 | 2012-07-26 16:50:01 +0000 | [diff] [blame] | 1740 | return real_start; |
| 1741 | } |
| 1742 | |
Peter Maydell | f3ed1f5 | 2011-05-17 13:34:46 +0100 | [diff] [blame] | 1743 | static void probe_guest_base(const char *image_name, |
| 1744 | abi_ulong loaddr, abi_ulong hiaddr) |
| 1745 | { |
| 1746 | /* Probe for a suitable guest base address, if the user has not set |
| 1747 | * it explicitly, and set guest_base appropriately. |
| 1748 | * In case of error we will print a suitable message and exit. |
| 1749 | */ |
Peter Maydell | f3ed1f5 | 2011-05-17 13:34:46 +0100 | [diff] [blame] | 1750 | const char *errmsg; |
| 1751 | if (!have_guest_base && !reserved_va) { |
| 1752 | unsigned long host_start, real_start, host_size; |
| 1753 | |
| 1754 | /* Round addresses to page boundaries. */ |
| 1755 | loaddr &= qemu_host_page_mask; |
| 1756 | hiaddr = HOST_PAGE_ALIGN(hiaddr); |
| 1757 | |
| 1758 | if (loaddr < mmap_min_addr) { |
| 1759 | host_start = HOST_PAGE_ALIGN(mmap_min_addr); |
| 1760 | } else { |
| 1761 | host_start = loaddr; |
| 1762 | if (host_start != loaddr) { |
| 1763 | errmsg = "Address overflow loading ELF binary"; |
| 1764 | goto exit_errmsg; |
| 1765 | } |
| 1766 | } |
| 1767 | host_size = hiaddr - loaddr; |
Meador Inge | dce1040 | 2012-07-26 16:50:01 +0000 | [diff] [blame] | 1768 | |
| 1769 | /* Setup the initial guest memory space with ranges gleaned from |
| 1770 | * the ELF image that is being loaded. |
| 1771 | */ |
| 1772 | real_start = init_guest_space(host_start, host_size, loaddr, false); |
| 1773 | if (real_start == (unsigned long)-1) { |
| 1774 | errmsg = "Unable to find space for application"; |
| 1775 | goto exit_errmsg; |
Peter Maydell | f3ed1f5 | 2011-05-17 13:34:46 +0100 | [diff] [blame] | 1776 | } |
Meador Inge | dce1040 | 2012-07-26 16:50:01 +0000 | [diff] [blame] | 1777 | guest_base = real_start - loaddr; |
| 1778 | |
Paolo Bonzini | 1382902 | 2015-11-13 12:32:19 +0100 | [diff] [blame] | 1779 | qemu_log_mask(CPU_LOG_PAGE, "Relocating guest address space from 0x" |
| 1780 | TARGET_ABI_FMT_lx " to 0x%lx\n", |
| 1781 | loaddr, real_start); |
Peter Maydell | f3ed1f5 | 2011-05-17 13:34:46 +0100 | [diff] [blame] | 1782 | } |
| 1783 | return; |
| 1784 | |
Peter Maydell | f3ed1f5 | 2011-05-17 13:34:46 +0100 | [diff] [blame] | 1785 | exit_errmsg: |
| 1786 | fprintf(stderr, "%s: %s\n", image_name, errmsg); |
| 1787 | exit(-1); |
Peter Maydell | f3ed1f5 | 2011-05-17 13:34:46 +0100 | [diff] [blame] | 1788 | } |
| 1789 | |
| 1790 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1791 | /* Load an ELF image into the address space. |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1792 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1793 | IMAGE_NAME is the filename of the image, to use in error messages. |
| 1794 | IMAGE_FD is the open file descriptor for the image. |
| 1795 | |
| 1796 | BPRM_BUF is a copy of the beginning of the file; this of course |
| 1797 | contains the elf file header at offset 0. It is assumed that this |
| 1798 | buffer is sufficiently aligned to present no problems to the host |
| 1799 | in accessing data at aligned offsets within the buffer. |
| 1800 | |
| 1801 | On return: INFO values will be filled in, as necessary or available. */ |
| 1802 | |
| 1803 | static void load_elf_image(const char *image_name, int image_fd, |
Richard Henderson | bf85889 | 2010-07-27 10:25:38 -0700 | [diff] [blame] | 1804 | struct image_info *info, char **pinterp_name, |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1805 | char bprm_buf[BPRM_BUF_SIZE]) |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1806 | { |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1807 | struct elfhdr *ehdr = (struct elfhdr *)bprm_buf; |
| 1808 | struct elf_phdr *phdr; |
| 1809 | abi_ulong load_addr, load_bias, loaddr, hiaddr, error; |
| 1810 | int i, retval; |
| 1811 | const char *errmsg; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1812 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1813 | /* First of all, some simple consistency checks */ |
| 1814 | errmsg = "Invalid ELF image for this architecture"; |
| 1815 | if (!elf_check_ident(ehdr)) { |
| 1816 | goto exit_errmsg; |
| 1817 | } |
| 1818 | bswap_ehdr(ehdr); |
| 1819 | if (!elf_check_ehdr(ehdr)) { |
| 1820 | goto exit_errmsg; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1821 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1822 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1823 | i = ehdr->e_phnum * sizeof(struct elf_phdr); |
| 1824 | if (ehdr->e_phoff + i <= BPRM_BUF_SIZE) { |
| 1825 | phdr = (struct elf_phdr *)(bprm_buf + ehdr->e_phoff); |
Richard Henderson | 9955ffa | 2010-07-27 10:25:30 -0700 | [diff] [blame] | 1826 | } else { |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1827 | phdr = (struct elf_phdr *) alloca(i); |
| 1828 | retval = pread(image_fd, phdr, i, ehdr->e_phoff); |
Richard Henderson | 9955ffa | 2010-07-27 10:25:30 -0700 | [diff] [blame] | 1829 | if (retval != i) { |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1830 | goto exit_read; |
Richard Henderson | 9955ffa | 2010-07-27 10:25:30 -0700 | [diff] [blame] | 1831 | } |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1832 | } |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1833 | bswap_phdr(phdr, ehdr->e_phnum); |
bellard | 09bfb05 | 2003-04-10 00:03:40 +0000 | [diff] [blame] | 1834 | |
Mike Frysinger | 1af02e8 | 2011-02-07 01:05:50 -0500 | [diff] [blame] | 1835 | #ifdef CONFIG_USE_FDPIC |
| 1836 | info->nsegs = 0; |
| 1837 | info->pt_dynamic_addr = 0; |
| 1838 | #endif |
| 1839 | |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1840 | /* Find the maximum size of the image and allocate an appropriate |
| 1841 | amount of memory to handle that. */ |
| 1842 | loaddr = -1, hiaddr = 0; |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1843 | for (i = 0; i < ehdr->e_phnum; ++i) { |
| 1844 | if (phdr[i].p_type == PT_LOAD) { |
Jonas Maebe | a93934f | 2014-10-24 16:07:15 +0200 | [diff] [blame] | 1845 | abi_ulong a = phdr[i].p_vaddr - phdr[i].p_offset; |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1846 | if (a < loaddr) { |
| 1847 | loaddr = a; |
| 1848 | } |
Tom Musta | ccf661f | 2014-11-06 13:43:13 -0600 | [diff] [blame] | 1849 | a = phdr[i].p_vaddr + phdr[i].p_memsz; |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1850 | if (a > hiaddr) { |
| 1851 | hiaddr = a; |
| 1852 | } |
Mike Frysinger | 1af02e8 | 2011-02-07 01:05:50 -0500 | [diff] [blame] | 1853 | #ifdef CONFIG_USE_FDPIC |
| 1854 | ++info->nsegs; |
| 1855 | #endif |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1856 | } |
| 1857 | } |
| 1858 | |
| 1859 | load_addr = loaddr; |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1860 | if (ehdr->e_type == ET_DYN) { |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1861 | /* The image indicates that it can be loaded anywhere. Find a |
| 1862 | location that can hold the memory space required. If the |
| 1863 | image is pre-linked, LOADDR will be non-zero. Since we do |
| 1864 | not supply MAP_FIXED here we'll use that address if and |
| 1865 | only if it remains available. */ |
| 1866 | load_addr = target_mmap(loaddr, hiaddr - loaddr, PROT_NONE, |
| 1867 | MAP_PRIVATE | MAP_ANON | MAP_NORESERVE, |
| 1868 | -1, 0); |
| 1869 | if (load_addr == -1) { |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1870 | goto exit_perror; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1871 | } |
Richard Henderson | bf85889 | 2010-07-27 10:25:38 -0700 | [diff] [blame] | 1872 | } else if (pinterp_name != NULL) { |
| 1873 | /* This is the main executable. Make sure that the low |
| 1874 | address does not conflict with MMAP_MIN_ADDR or the |
| 1875 | QEMU application itself. */ |
Peter Maydell | f3ed1f5 | 2011-05-17 13:34:46 +0100 | [diff] [blame] | 1876 | probe_guest_base(image_name, loaddr, hiaddr); |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1877 | } |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1878 | load_bias = load_addr - loaddr; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1879 | |
Mike Frysinger | 1af02e8 | 2011-02-07 01:05:50 -0500 | [diff] [blame] | 1880 | #ifdef CONFIG_USE_FDPIC |
| 1881 | { |
| 1882 | struct elf32_fdpic_loadseg *loadsegs = info->loadsegs = |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1883 | g_malloc(sizeof(*loadsegs) * info->nsegs); |
Mike Frysinger | 1af02e8 | 2011-02-07 01:05:50 -0500 | [diff] [blame] | 1884 | |
| 1885 | for (i = 0; i < ehdr->e_phnum; ++i) { |
| 1886 | switch (phdr[i].p_type) { |
| 1887 | case PT_DYNAMIC: |
| 1888 | info->pt_dynamic_addr = phdr[i].p_vaddr + load_bias; |
| 1889 | break; |
| 1890 | case PT_LOAD: |
| 1891 | loadsegs->addr = phdr[i].p_vaddr + load_bias; |
| 1892 | loadsegs->p_vaddr = phdr[i].p_vaddr; |
| 1893 | loadsegs->p_memsz = phdr[i].p_memsz; |
| 1894 | ++loadsegs; |
| 1895 | break; |
| 1896 | } |
| 1897 | } |
| 1898 | } |
| 1899 | #endif |
| 1900 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1901 | info->load_bias = load_bias; |
| 1902 | info->load_addr = load_addr; |
| 1903 | info->entry = ehdr->e_entry + load_bias; |
| 1904 | info->start_code = -1; |
| 1905 | info->end_code = 0; |
| 1906 | info->start_data = -1; |
| 1907 | info->end_data = 0; |
| 1908 | info->brk = 0; |
Paul Brook | d8fd295 | 2012-03-30 18:02:50 +0100 | [diff] [blame] | 1909 | info->elf_flags = ehdr->e_flags; |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1910 | |
| 1911 | for (i = 0; i < ehdr->e_phnum; i++) { |
| 1912 | struct elf_phdr *eppnt = phdr + i; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1913 | if (eppnt->p_type == PT_LOAD) { |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1914 | abi_ulong vaddr, vaddr_po, vaddr_ps, vaddr_ef, vaddr_em; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1915 | int elf_prot = 0; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1916 | |
| 1917 | if (eppnt->p_flags & PF_R) elf_prot = PROT_READ; |
| 1918 | if (eppnt->p_flags & PF_W) elf_prot |= PROT_WRITE; |
| 1919 | if (eppnt->p_flags & PF_X) elf_prot |= PROT_EXEC; |
bellard | 09bfb05 | 2003-04-10 00:03:40 +0000 | [diff] [blame] | 1920 | |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1921 | vaddr = load_bias + eppnt->p_vaddr; |
| 1922 | vaddr_po = TARGET_ELF_PAGEOFFSET(vaddr); |
| 1923 | vaddr_ps = TARGET_ELF_PAGESTART(vaddr); |
| 1924 | |
| 1925 | error = target_mmap(vaddr_ps, eppnt->p_filesz + vaddr_po, |
| 1926 | elf_prot, MAP_PRIVATE | MAP_FIXED, |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1927 | image_fd, eppnt->p_offset - vaddr_po); |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1928 | if (error == -1) { |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1929 | goto exit_perror; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1930 | } |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1931 | |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1932 | vaddr_ef = vaddr + eppnt->p_filesz; |
| 1933 | vaddr_em = vaddr + eppnt->p_memsz; |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1934 | |
Richard Henderson | cf129f3 | 2010-07-27 10:25:27 -0700 | [diff] [blame] | 1935 | /* If the load segment requests extra zeros (e.g. bss), map it. */ |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1936 | if (vaddr_ef < vaddr_em) { |
| 1937 | zero_bss(vaddr_ef, vaddr_em, elf_prot); |
Richard Henderson | cf129f3 | 2010-07-27 10:25:27 -0700 | [diff] [blame] | 1938 | } |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1939 | |
| 1940 | /* Find the full program boundaries. */ |
| 1941 | if (elf_prot & PROT_EXEC) { |
| 1942 | if (vaddr < info->start_code) { |
| 1943 | info->start_code = vaddr; |
| 1944 | } |
| 1945 | if (vaddr_ef > info->end_code) { |
| 1946 | info->end_code = vaddr_ef; |
| 1947 | } |
| 1948 | } |
| 1949 | if (elf_prot & PROT_WRITE) { |
| 1950 | if (vaddr < info->start_data) { |
| 1951 | info->start_data = vaddr; |
| 1952 | } |
| 1953 | if (vaddr_ef > info->end_data) { |
| 1954 | info->end_data = vaddr_ef; |
| 1955 | } |
| 1956 | if (vaddr_em > info->brk) { |
| 1957 | info->brk = vaddr_em; |
| 1958 | } |
| 1959 | } |
Richard Henderson | bf85889 | 2010-07-27 10:25:38 -0700 | [diff] [blame] | 1960 | } else if (eppnt->p_type == PT_INTERP && pinterp_name) { |
| 1961 | char *interp_name; |
| 1962 | |
| 1963 | if (*pinterp_name) { |
| 1964 | errmsg = "Multiple PT_INTERP entries"; |
| 1965 | goto exit_errmsg; |
| 1966 | } |
| 1967 | interp_name = malloc(eppnt->p_filesz); |
| 1968 | if (!interp_name) { |
| 1969 | goto exit_perror; |
| 1970 | } |
| 1971 | |
| 1972 | if (eppnt->p_offset + eppnt->p_filesz <= BPRM_BUF_SIZE) { |
| 1973 | memcpy(interp_name, bprm_buf + eppnt->p_offset, |
| 1974 | eppnt->p_filesz); |
| 1975 | } else { |
| 1976 | retval = pread(image_fd, interp_name, eppnt->p_filesz, |
| 1977 | eppnt->p_offset); |
| 1978 | if (retval != eppnt->p_filesz) { |
| 1979 | goto exit_perror; |
| 1980 | } |
| 1981 | } |
| 1982 | if (interp_name[eppnt->p_filesz - 1] != 0) { |
| 1983 | errmsg = "Invalid PT_INTERP entry"; |
| 1984 | goto exit_errmsg; |
| 1985 | } |
| 1986 | *pinterp_name = interp_name; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 1987 | } |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1988 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1989 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1990 | if (info->end_data == 0) { |
| 1991 | info->start_data = info->end_code; |
| 1992 | info->end_data = info->end_code; |
| 1993 | info->brk = info->end_code; |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 1994 | } |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1995 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 1996 | if (qemu_log_enabled()) { |
| 1997 | load_symbols(ehdr, image_fd, load_bias); |
| 1998 | } |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 1999 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 2000 | close(image_fd); |
| 2001 | return; |
| 2002 | |
| 2003 | exit_read: |
| 2004 | if (retval >= 0) { |
| 2005 | errmsg = "Incomplete read of file header"; |
| 2006 | goto exit_errmsg; |
| 2007 | } |
| 2008 | exit_perror: |
| 2009 | errmsg = strerror(errno); |
| 2010 | exit_errmsg: |
| 2011 | fprintf(stderr, "%s: %s\n", image_name, errmsg); |
| 2012 | exit(-1); |
| 2013 | } |
| 2014 | |
| 2015 | static void load_elf_interp(const char *filename, struct image_info *info, |
| 2016 | char bprm_buf[BPRM_BUF_SIZE]) |
| 2017 | { |
| 2018 | int fd, retval; |
| 2019 | |
| 2020 | fd = open(path(filename), O_RDONLY); |
| 2021 | if (fd < 0) { |
| 2022 | goto exit_perror; |
| 2023 | } |
| 2024 | |
| 2025 | retval = read(fd, bprm_buf, BPRM_BUF_SIZE); |
| 2026 | if (retval < 0) { |
| 2027 | goto exit_perror; |
| 2028 | } |
| 2029 | if (retval < BPRM_BUF_SIZE) { |
| 2030 | memset(bprm_buf + retval, 0, BPRM_BUF_SIZE - retval); |
| 2031 | } |
| 2032 | |
Richard Henderson | bf85889 | 2010-07-27 10:25:38 -0700 | [diff] [blame] | 2033 | load_elf_image(filename, fd, info, NULL, bprm_buf); |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 2034 | return; |
| 2035 | |
| 2036 | exit_perror: |
| 2037 | fprintf(stderr, "%s: %s\n", filename, strerror(errno)); |
| 2038 | exit(-1); |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2039 | } |
| 2040 | |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2041 | static int symfind(const void *s0, const void *s1) |
| 2042 | { |
Stefan Weil | c7c530c | 2012-01-05 15:39:39 +0100 | [diff] [blame] | 2043 | target_ulong addr = *(target_ulong *)s0; |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2044 | struct elf_sym *sym = (struct elf_sym *)s1; |
| 2045 | int result = 0; |
Stefan Weil | c7c530c | 2012-01-05 15:39:39 +0100 | [diff] [blame] | 2046 | if (addr < sym->st_value) { |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2047 | result = -1; |
Stefan Weil | c7c530c | 2012-01-05 15:39:39 +0100 | [diff] [blame] | 2048 | } else if (addr >= sym->st_value + sym->st_size) { |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2049 | result = 1; |
| 2050 | } |
| 2051 | return result; |
| 2052 | } |
| 2053 | |
| 2054 | static const char *lookup_symbolxx(struct syminfo *s, target_ulong orig_addr) |
| 2055 | { |
| 2056 | #if ELF_CLASS == ELFCLASS32 |
| 2057 | struct elf_sym *syms = s->disas_symtab.elf32; |
| 2058 | #else |
| 2059 | struct elf_sym *syms = s->disas_symtab.elf64; |
| 2060 | #endif |
| 2061 | |
| 2062 | // binary search |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2063 | struct elf_sym *sym; |
| 2064 | |
Stefan Weil | c7c530c | 2012-01-05 15:39:39 +0100 | [diff] [blame] | 2065 | sym = bsearch(&orig_addr, syms, s->disas_num_syms, sizeof(*syms), symfind); |
Blue Swirl | 7cba04f | 2009-08-01 10:13:20 +0000 | [diff] [blame] | 2066 | if (sym != NULL) { |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2067 | return s->disas_strtab + sym->st_name; |
| 2068 | } |
| 2069 | |
| 2070 | return ""; |
| 2071 | } |
| 2072 | |
| 2073 | /* FIXME: This should use elf_ops.h */ |
| 2074 | static int symcmp(const void *s0, const void *s1) |
| 2075 | { |
| 2076 | struct elf_sym *sym0 = (struct elf_sym *)s0; |
| 2077 | struct elf_sym *sym1 = (struct elf_sym *)s1; |
| 2078 | return (sym0->st_value < sym1->st_value) |
| 2079 | ? -1 |
| 2080 | : ((sym0->st_value > sym1->st_value) ? 1 : 0); |
| 2081 | } |
| 2082 | |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 2083 | /* Best attempt to load symbols from this ELF object. */ |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2084 | static void load_symbols(struct elfhdr *hdr, int fd, abi_ulong load_bias) |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 2085 | { |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2086 | int i, shnum, nsyms, sym_idx = 0, str_idx = 0; |
| 2087 | struct elf_shdr *shdr; |
Cédric VINCENT | b947527 | 2011-06-01 14:36:38 +0200 | [diff] [blame] | 2088 | char *strings = NULL; |
| 2089 | struct syminfo *s = NULL; |
| 2090 | struct elf_sym *new_syms, *syms = NULL; |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2091 | |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2092 | shnum = hdr->e_shnum; |
| 2093 | i = shnum * sizeof(struct elf_shdr); |
| 2094 | shdr = (struct elf_shdr *)alloca(i); |
| 2095 | if (pread(fd, shdr, i, hdr->e_shoff) != i) { |
| 2096 | return; |
| 2097 | } |
| 2098 | |
| 2099 | bswap_shdr(shdr, shnum); |
| 2100 | for (i = 0; i < shnum; ++i) { |
| 2101 | if (shdr[i].sh_type == SHT_SYMTAB) { |
| 2102 | sym_idx = i; |
| 2103 | str_idx = shdr[i].sh_link; |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2104 | goto found; |
| 2105 | } |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 2106 | } |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2107 | |
| 2108 | /* There will be no symbol table if the file was stripped. */ |
| 2109 | return; |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 2110 | |
| 2111 | found: |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2112 | /* Now know where the strtab and symtab are. Snarf them. */ |
bellard | e80cfcf | 2004-12-19 23:18:01 +0000 | [diff] [blame] | 2113 | s = malloc(sizeof(*s)); |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2114 | if (!s) { |
Cédric VINCENT | b947527 | 2011-06-01 14:36:38 +0200 | [diff] [blame] | 2115 | goto give_up; |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2116 | } |
| 2117 | |
| 2118 | i = shdr[str_idx].sh_size; |
| 2119 | s->disas_strtab = strings = malloc(i); |
| 2120 | if (!strings || pread(fd, strings, i, shdr[str_idx].sh_offset) != i) { |
Cédric VINCENT | b947527 | 2011-06-01 14:36:38 +0200 | [diff] [blame] | 2121 | goto give_up; |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2122 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 2123 | |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2124 | i = shdr[sym_idx].sh_size; |
| 2125 | syms = malloc(i); |
| 2126 | if (!syms || pread(fd, syms, i, shdr[sym_idx].sh_offset) != i) { |
Cédric VINCENT | b947527 | 2011-06-01 14:36:38 +0200 | [diff] [blame] | 2127 | goto give_up; |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2128 | } |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 2129 | |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2130 | nsyms = i / sizeof(struct elf_sym); |
| 2131 | for (i = 0; i < nsyms; ) { |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2132 | bswap_sym(syms + i); |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2133 | /* Throw away entries which we do not need. */ |
| 2134 | if (syms[i].st_shndx == SHN_UNDEF |
| 2135 | || syms[i].st_shndx >= SHN_LORESERVE |
| 2136 | || ELF_ST_TYPE(syms[i].st_info) != STT_FUNC) { |
| 2137 | if (i < --nsyms) { |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2138 | syms[i] = syms[nsyms]; |
| 2139 | } |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2140 | } else { |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2141 | #if defined(TARGET_ARM) || defined (TARGET_MIPS) |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2142 | /* The bottom address bit marks a Thumb or MIPS16 symbol. */ |
| 2143 | syms[i].st_value &= ~(target_ulong)1; |
blueswir1 | 0774bed | 2007-07-05 13:23:29 +0000 | [diff] [blame] | 2144 | #endif |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2145 | syms[i].st_value += load_bias; |
| 2146 | i++; |
| 2147 | } |
blueswir1 | 0774bed | 2007-07-05 13:23:29 +0000 | [diff] [blame] | 2148 | } |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 2149 | |
Cédric VINCENT | b947527 | 2011-06-01 14:36:38 +0200 | [diff] [blame] | 2150 | /* No "useful" symbol. */ |
| 2151 | if (nsyms == 0) { |
| 2152 | goto give_up; |
| 2153 | } |
| 2154 | |
Richard Henderson | 5d5c993 | 2010-07-29 09:37:01 -0700 | [diff] [blame] | 2155 | /* Attempt to free the storage associated with the local symbols |
| 2156 | that we threw away. Whether or not this has any effect on the |
| 2157 | memory allocation depends on the malloc implementation and how |
| 2158 | many symbols we managed to discard. */ |
Stefan Weil | 8d79de6 | 2011-01-17 21:36:06 +0100 | [diff] [blame] | 2159 | new_syms = realloc(syms, nsyms * sizeof(*syms)); |
| 2160 | if (new_syms == NULL) { |
Cédric VINCENT | b947527 | 2011-06-01 14:36:38 +0200 | [diff] [blame] | 2161 | goto give_up; |
Richard Henderson | 5d5c993 | 2010-07-29 09:37:01 -0700 | [diff] [blame] | 2162 | } |
Stefan Weil | 8d79de6 | 2011-01-17 21:36:06 +0100 | [diff] [blame] | 2163 | syms = new_syms; |
Richard Henderson | 5d5c993 | 2010-07-29 09:37:01 -0700 | [diff] [blame] | 2164 | |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2165 | qsort(syms, nsyms, sizeof(*syms), symcmp); |
| 2166 | |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2167 | s->disas_num_syms = nsyms; |
| 2168 | #if ELF_CLASS == ELFCLASS32 |
| 2169 | s->disas_symtab.elf32 = syms; |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2170 | #else |
| 2171 | s->disas_symtab.elf64 = syms; |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 2172 | #endif |
Richard Henderson | 682674b | 2010-07-27 10:25:33 -0700 | [diff] [blame] | 2173 | s->lookup_symbol = lookup_symbolxx; |
bellard | e80cfcf | 2004-12-19 23:18:01 +0000 | [diff] [blame] | 2174 | s->next = syminfos; |
| 2175 | syminfos = s; |
Cédric VINCENT | b947527 | 2011-06-01 14:36:38 +0200 | [diff] [blame] | 2176 | |
| 2177 | return; |
| 2178 | |
| 2179 | give_up: |
| 2180 | free(s); |
| 2181 | free(strings); |
| 2182 | free(syms); |
bellard | 689f936 | 2003-04-29 20:40:07 +0000 | [diff] [blame] | 2183 | } |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2184 | |
Will Newton | f0116c5 | 2014-01-09 09:10:50 +0000 | [diff] [blame] | 2185 | int load_elf_binary(struct linux_binprm *bprm, struct image_info *info) |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2186 | { |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 2187 | struct image_info interp_info; |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2188 | struct elfhdr elf_ex; |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 2189 | char *elf_interpreter = NULL; |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 2190 | char *scratch; |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2191 | |
Richard Henderson | bf85889 | 2010-07-27 10:25:38 -0700 | [diff] [blame] | 2192 | info->start_mmap = (abi_ulong)ELF_START_MMAP; |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2193 | |
Richard Henderson | bf85889 | 2010-07-27 10:25:38 -0700 | [diff] [blame] | 2194 | load_elf_image(bprm->filename, bprm->fd, info, |
| 2195 | &elf_interpreter, bprm->buf); |
| 2196 | |
| 2197 | /* ??? We need a copy of the elf header for passing to create_elf_tables. |
| 2198 | If we do nothing, we'll have overwritten this when we re-use bprm->buf |
| 2199 | when we load the interpreter. */ |
| 2200 | elf_ex = *(struct elfhdr *)bprm->buf; |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2201 | |
Stefan Brüns | 59baae9 | 2015-09-02 03:38:53 +0200 | [diff] [blame] | 2202 | /* Do this so that we can load the interpreter, if need be. We will |
| 2203 | change some of these later */ |
| 2204 | bprm->p = setup_arg_pages(bprm, info); |
| 2205 | |
| 2206 | scratch = g_new0(char, TARGET_PAGE_SIZE); |
| 2207 | bprm->p = copy_elf_strings(1, &bprm->filename, scratch, |
| 2208 | bprm->p, info->stack_limit); |
| 2209 | bprm->p = copy_elf_strings(bprm->envc, bprm->envp, scratch, |
| 2210 | bprm->p, info->stack_limit); |
| 2211 | bprm->p = copy_elf_strings(bprm->argc, bprm->argv, scratch, |
| 2212 | bprm->p, info->stack_limit); |
| 2213 | g_free(scratch); |
| 2214 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 2215 | if (!bprm->p) { |
Richard Henderson | bf85889 | 2010-07-27 10:25:38 -0700 | [diff] [blame] | 2216 | fprintf(stderr, "%s: %s\n", bprm->filename, strerror(E2BIG)); |
| 2217 | exit(-1); |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 2218 | } |
| 2219 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 2220 | if (elf_interpreter) { |
| 2221 | load_elf_interp(elf_interpreter, &interp_info, bprm->buf); |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2222 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 2223 | /* If the program interpreter is one of these two, then assume |
| 2224 | an iBCS2 image. Otherwise assume a native linux image. */ |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2225 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 2226 | if (strcmp(elf_interpreter, "/usr/lib/libc.so.1") == 0 |
| 2227 | || strcmp(elf_interpreter, "/usr/lib/ld.so.1") == 0) { |
| 2228 | info->personality = PER_SVR4; |
| 2229 | |
| 2230 | /* Why this, you ask??? Well SVr4 maps page 0 as read-only, |
| 2231 | and some applications "depend" upon this behavior. Since |
| 2232 | we do not have the power to recompile these, we emulate |
| 2233 | the SVr4 behavior. Sigh. */ |
| 2234 | target_mmap(0, qemu_host_page_size, PROT_READ | PROT_EXEC, |
| 2235 | MAP_FIXED | MAP_PRIVATE, -1, 0); |
| 2236 | } |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2237 | } |
| 2238 | |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 2239 | bprm->p = create_elf_tables(bprm->p, bprm->argc, bprm->envc, &elf_ex, |
| 2240 | info, (elf_interpreter ? &interp_info : NULL)); |
| 2241 | info->start_stack = bprm->p; |
| 2242 | |
| 2243 | /* If we have an interpreter, set that as the program's entry point. |
Richard Henderson | 8e78064 | 2011-10-26 09:59:17 -0700 | [diff] [blame] | 2244 | Copy the load_bias as well, to help PPC64 interpret the entry |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 2245 | point as a function descriptor. Do this after creating elf tables |
| 2246 | so that we copy the original program entry point into the AUXV. */ |
| 2247 | if (elf_interpreter) { |
Richard Henderson | 8e78064 | 2011-10-26 09:59:17 -0700 | [diff] [blame] | 2248 | info->load_bias = interp_info.load_bias; |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 2249 | info->entry = interp_info.entry; |
Richard Henderson | bf85889 | 2010-07-27 10:25:38 -0700 | [diff] [blame] | 2250 | free(elf_interpreter); |
Richard Henderson | 8e62a71 | 2010-07-27 10:25:37 -0700 | [diff] [blame] | 2251 | } |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2252 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2253 | #ifdef USE_ELF_CORE_DUMP |
| 2254 | bprm->core_dump = &elf_core_dump; |
| 2255 | #endif |
| 2256 | |
bellard | 31e31b8 | 2003-02-18 22:55:36 +0000 | [diff] [blame] | 2257 | return 0; |
| 2258 | } |
| 2259 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2260 | #ifdef USE_ELF_CORE_DUMP |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2261 | /* |
| 2262 | * Definitions to generate Intel SVR4-like core files. |
Laurent Desnogues | a2547a1 | 2009-07-17 13:33:41 +0100 | [diff] [blame] | 2263 | * These mostly have the same names as the SVR4 types with "target_elf_" |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2264 | * tacked on the front to prevent clashes with linux definitions, |
| 2265 | * and the typedef forms have been avoided. This is mostly like |
| 2266 | * the SVR4 structure, but more Linuxy, with things that Linux does |
| 2267 | * not support and which gdb doesn't really use excluded. |
| 2268 | * |
| 2269 | * Fields we don't dump (their contents is zero) in linux-user qemu |
| 2270 | * are marked with XXX. |
| 2271 | * |
| 2272 | * Core dump code is copied from linux kernel (fs/binfmt_elf.c). |
| 2273 | * |
| 2274 | * Porting ELF coredump for target is (quite) simple process. First you |
Nathan Froyd | dd0a365 | 2009-12-11 09:04:45 -0800 | [diff] [blame] | 2275 | * define USE_ELF_CORE_DUMP in target ELF code (where init_thread() for |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2276 | * the target resides): |
| 2277 | * |
| 2278 | * #define USE_ELF_CORE_DUMP |
| 2279 | * |
| 2280 | * Next you define type of register set used for dumping. ELF specification |
| 2281 | * says that it needs to be array of elf_greg_t that has size of ELF_NREG. |
| 2282 | * |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 2283 | * typedef <target_regtype> target_elf_greg_t; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2284 | * #define ELF_NREG <number of registers> |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 2285 | * typedef taret_elf_greg_t target_elf_gregset_t[ELF_NREG]; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2286 | * |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2287 | * Last step is to implement target specific function that copies registers |
| 2288 | * from given cpu into just specified register set. Prototype is: |
| 2289 | * |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 2290 | * static void elf_core_copy_regs(taret_elf_gregset_t *regs, |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 2291 | * const CPUArchState *env); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2292 | * |
| 2293 | * Parameters: |
| 2294 | * regs - copy register values into here (allocated and zeroed by caller) |
| 2295 | * env - copy registers from here |
| 2296 | * |
| 2297 | * Example for ARM target is provided in this file. |
| 2298 | */ |
| 2299 | |
| 2300 | /* An ELF note in memory */ |
| 2301 | struct memelfnote { |
| 2302 | const char *name; |
| 2303 | size_t namesz; |
| 2304 | size_t namesz_rounded; |
| 2305 | int type; |
| 2306 | size_t datasz; |
Laurent Vivier | 80f5ce7 | 2011-02-13 23:37:35 +0100 | [diff] [blame] | 2307 | size_t datasz_rounded; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2308 | void *data; |
| 2309 | size_t notesz; |
| 2310 | }; |
| 2311 | |
Laurent Desnogues | a2547a1 | 2009-07-17 13:33:41 +0100 | [diff] [blame] | 2312 | struct target_elf_siginfo { |
Paolo Bonzini | f8fd4fc | 2013-04-17 16:26:40 +0200 | [diff] [blame] | 2313 | abi_int si_signo; /* signal number */ |
| 2314 | abi_int si_code; /* extra code */ |
| 2315 | abi_int si_errno; /* errno */ |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2316 | }; |
| 2317 | |
Laurent Desnogues | a2547a1 | 2009-07-17 13:33:41 +0100 | [diff] [blame] | 2318 | struct target_elf_prstatus { |
| 2319 | struct target_elf_siginfo pr_info; /* Info associated with signal */ |
Paolo Bonzini | 1ddd592 | 2013-04-17 16:26:39 +0200 | [diff] [blame] | 2320 | abi_short pr_cursig; /* Current signal */ |
Paolo Bonzini | ca98ac8 | 2013-04-17 16:26:36 +0200 | [diff] [blame] | 2321 | abi_ulong pr_sigpend; /* XXX */ |
| 2322 | abi_ulong pr_sighold; /* XXX */ |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 2323 | target_pid_t pr_pid; |
| 2324 | target_pid_t pr_ppid; |
| 2325 | target_pid_t pr_pgrp; |
| 2326 | target_pid_t pr_sid; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2327 | struct target_timeval pr_utime; /* XXX User time */ |
| 2328 | struct target_timeval pr_stime; /* XXX System time */ |
| 2329 | struct target_timeval pr_cutime; /* XXX Cumulative user time */ |
| 2330 | struct target_timeval pr_cstime; /* XXX Cumulative system time */ |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 2331 | target_elf_gregset_t pr_reg; /* GP registers */ |
Paolo Bonzini | f8fd4fc | 2013-04-17 16:26:40 +0200 | [diff] [blame] | 2332 | abi_int pr_fpvalid; /* XXX */ |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2333 | }; |
| 2334 | |
| 2335 | #define ELF_PRARGSZ (80) /* Number of chars for args */ |
| 2336 | |
Laurent Desnogues | a2547a1 | 2009-07-17 13:33:41 +0100 | [diff] [blame] | 2337 | struct target_elf_prpsinfo { |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2338 | char pr_state; /* numeric process state */ |
| 2339 | char pr_sname; /* char for pr_state */ |
| 2340 | char pr_zomb; /* zombie */ |
| 2341 | char pr_nice; /* nice val */ |
Paolo Bonzini | ca98ac8 | 2013-04-17 16:26:36 +0200 | [diff] [blame] | 2342 | abi_ulong pr_flag; /* flags */ |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 2343 | target_uid_t pr_uid; |
| 2344 | target_gid_t pr_gid; |
| 2345 | target_pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2346 | /* Lots missing */ |
| 2347 | char pr_fname[16]; /* filename of executable */ |
| 2348 | char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ |
| 2349 | }; |
| 2350 | |
| 2351 | /* Here is the structure in which status of each thread is captured. */ |
| 2352 | struct elf_thread_status { |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2353 | QTAILQ_ENTRY(elf_thread_status) ets_link; |
Laurent Desnogues | a2547a1 | 2009-07-17 13:33:41 +0100 | [diff] [blame] | 2354 | struct target_elf_prstatus prstatus; /* NT_PRSTATUS */ |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2355 | #if 0 |
| 2356 | elf_fpregset_t fpu; /* NT_PRFPREG */ |
| 2357 | struct task_struct *thread; |
| 2358 | elf_fpxregset_t xfpu; /* ELF_CORE_XFPREG_TYPE */ |
| 2359 | #endif |
| 2360 | struct memelfnote notes[1]; |
| 2361 | int num_notes; |
| 2362 | }; |
| 2363 | |
| 2364 | struct elf_note_info { |
| 2365 | struct memelfnote *notes; |
Laurent Desnogues | a2547a1 | 2009-07-17 13:33:41 +0100 | [diff] [blame] | 2366 | struct target_elf_prstatus *prstatus; /* NT_PRSTATUS */ |
| 2367 | struct target_elf_prpsinfo *psinfo; /* NT_PRPSINFO */ |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2368 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2369 | QTAILQ_HEAD(thread_list_head, elf_thread_status) thread_list; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2370 | #if 0 |
| 2371 | /* |
| 2372 | * Current version of ELF coredump doesn't support |
| 2373 | * dumping fp regs etc. |
| 2374 | */ |
| 2375 | elf_fpregset_t *fpu; |
| 2376 | elf_fpxregset_t *xfpu; |
| 2377 | int thread_status_size; |
| 2378 | #endif |
| 2379 | int notes_size; |
| 2380 | int numnote; |
| 2381 | }; |
| 2382 | |
| 2383 | struct vm_area_struct { |
Mikhail Ilyin | 1a1c4db | 2014-09-08 17:28:56 +0400 | [diff] [blame] | 2384 | target_ulong vma_start; /* start vaddr of memory region */ |
| 2385 | target_ulong vma_end; /* end vaddr of memory region */ |
| 2386 | abi_ulong vma_flags; /* protection etc. flags for the region */ |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2387 | QTAILQ_ENTRY(vm_area_struct) vma_link; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2388 | }; |
| 2389 | |
| 2390 | struct mm_struct { |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2391 | QTAILQ_HEAD(, vm_area_struct) mm_mmap; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2392 | int mm_count; /* number of mappings */ |
| 2393 | }; |
| 2394 | |
| 2395 | static struct mm_struct *vma_init(void); |
| 2396 | static void vma_delete(struct mm_struct *); |
Mikhail Ilyin | 1a1c4db | 2014-09-08 17:28:56 +0400 | [diff] [blame] | 2397 | static int vma_add_mapping(struct mm_struct *, target_ulong, |
| 2398 | target_ulong, abi_ulong); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2399 | static int vma_get_mapping_count(const struct mm_struct *); |
| 2400 | static struct vm_area_struct *vma_first(const struct mm_struct *); |
| 2401 | static struct vm_area_struct *vma_next(struct vm_area_struct *); |
| 2402 | static abi_ulong vma_dump_size(const struct vm_area_struct *); |
Mikhail Ilyin | 1a1c4db | 2014-09-08 17:28:56 +0400 | [diff] [blame] | 2403 | static int vma_walker(void *priv, target_ulong start, target_ulong end, |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2404 | unsigned long flags); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2405 | |
| 2406 | static void fill_elf_header(struct elfhdr *, int, uint16_t, uint32_t); |
| 2407 | static void fill_note(struct memelfnote *, const char *, int, |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2408 | unsigned int, void *); |
Laurent Desnogues | a2547a1 | 2009-07-17 13:33:41 +0100 | [diff] [blame] | 2409 | static void fill_prstatus(struct target_elf_prstatus *, const TaskState *, int); |
| 2410 | static int fill_psinfo(struct target_elf_prpsinfo *, const TaskState *); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2411 | static void fill_auxv_note(struct memelfnote *, const TaskState *); |
| 2412 | static void fill_elf_note_phdr(struct elf_phdr *, int, off_t); |
| 2413 | static size_t note_size(const struct memelfnote *); |
| 2414 | static void free_note_info(struct elf_note_info *); |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 2415 | static int fill_note_info(struct elf_note_info *, long, const CPUArchState *); |
| 2416 | static void fill_thread_info(struct elf_note_info *, const CPUArchState *); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2417 | static int core_dump_filename(const TaskState *, char *, size_t); |
| 2418 | |
| 2419 | static int dump_write(int, const void *, size_t); |
| 2420 | static int write_note(struct memelfnote *, int); |
| 2421 | static int write_note_info(struct elf_note_info *, int); |
| 2422 | |
| 2423 | #ifdef BSWAP_NEEDED |
Laurent Desnogues | a2547a1 | 2009-07-17 13:33:41 +0100 | [diff] [blame] | 2424 | static void bswap_prstatus(struct target_elf_prstatus *prstatus) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2425 | { |
Paolo Bonzini | ca98ac8 | 2013-04-17 16:26:36 +0200 | [diff] [blame] | 2426 | prstatus->pr_info.si_signo = tswap32(prstatus->pr_info.si_signo); |
| 2427 | prstatus->pr_info.si_code = tswap32(prstatus->pr_info.si_code); |
| 2428 | prstatus->pr_info.si_errno = tswap32(prstatus->pr_info.si_errno); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2429 | prstatus->pr_cursig = tswap16(prstatus->pr_cursig); |
Paolo Bonzini | ca98ac8 | 2013-04-17 16:26:36 +0200 | [diff] [blame] | 2430 | prstatus->pr_sigpend = tswapal(prstatus->pr_sigpend); |
| 2431 | prstatus->pr_sighold = tswapal(prstatus->pr_sighold); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2432 | prstatus->pr_pid = tswap32(prstatus->pr_pid); |
| 2433 | prstatus->pr_ppid = tswap32(prstatus->pr_ppid); |
| 2434 | prstatus->pr_pgrp = tswap32(prstatus->pr_pgrp); |
| 2435 | prstatus->pr_sid = tswap32(prstatus->pr_sid); |
| 2436 | /* cpu times are not filled, so we skip them */ |
| 2437 | /* regs should be in correct format already */ |
| 2438 | prstatus->pr_fpvalid = tswap32(prstatus->pr_fpvalid); |
| 2439 | } |
| 2440 | |
Laurent Desnogues | a2547a1 | 2009-07-17 13:33:41 +0100 | [diff] [blame] | 2441 | static void bswap_psinfo(struct target_elf_prpsinfo *psinfo) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2442 | { |
Paolo Bonzini | ca98ac8 | 2013-04-17 16:26:36 +0200 | [diff] [blame] | 2443 | psinfo->pr_flag = tswapal(psinfo->pr_flag); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2444 | psinfo->pr_uid = tswap16(psinfo->pr_uid); |
| 2445 | psinfo->pr_gid = tswap16(psinfo->pr_gid); |
| 2446 | psinfo->pr_pid = tswap32(psinfo->pr_pid); |
| 2447 | psinfo->pr_ppid = tswap32(psinfo->pr_ppid); |
| 2448 | psinfo->pr_pgrp = tswap32(psinfo->pr_pgrp); |
| 2449 | psinfo->pr_sid = tswap32(psinfo->pr_sid); |
| 2450 | } |
Richard Henderson | 991f8f0 | 2010-07-27 10:25:32 -0700 | [diff] [blame] | 2451 | |
| 2452 | static void bswap_note(struct elf_note *en) |
| 2453 | { |
| 2454 | bswap32s(&en->n_namesz); |
| 2455 | bswap32s(&en->n_descsz); |
| 2456 | bswap32s(&en->n_type); |
| 2457 | } |
| 2458 | #else |
| 2459 | static inline void bswap_prstatus(struct target_elf_prstatus *p) { } |
| 2460 | static inline void bswap_psinfo(struct target_elf_prpsinfo *p) {} |
| 2461 | static inline void bswap_note(struct elf_note *en) { } |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2462 | #endif /* BSWAP_NEEDED */ |
| 2463 | |
| 2464 | /* |
| 2465 | * Minimal support for linux memory regions. These are needed |
| 2466 | * when we are finding out what memory exactly belongs to |
| 2467 | * emulated process. No locks needed here, as long as |
| 2468 | * thread that received the signal is stopped. |
| 2469 | */ |
| 2470 | |
| 2471 | static struct mm_struct *vma_init(void) |
| 2472 | { |
| 2473 | struct mm_struct *mm; |
| 2474 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2475 | if ((mm = g_malloc(sizeof (*mm))) == NULL) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2476 | return (NULL); |
| 2477 | |
| 2478 | mm->mm_count = 0; |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2479 | QTAILQ_INIT(&mm->mm_mmap); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2480 | |
| 2481 | return (mm); |
| 2482 | } |
| 2483 | |
| 2484 | static void vma_delete(struct mm_struct *mm) |
| 2485 | { |
| 2486 | struct vm_area_struct *vma; |
| 2487 | |
| 2488 | while ((vma = vma_first(mm)) != NULL) { |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2489 | QTAILQ_REMOVE(&mm->mm_mmap, vma, vma_link); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2490 | g_free(vma); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2491 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2492 | g_free(mm); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2493 | } |
| 2494 | |
Mikhail Ilyin | 1a1c4db | 2014-09-08 17:28:56 +0400 | [diff] [blame] | 2495 | static int vma_add_mapping(struct mm_struct *mm, target_ulong start, |
| 2496 | target_ulong end, abi_ulong flags) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2497 | { |
| 2498 | struct vm_area_struct *vma; |
| 2499 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2500 | if ((vma = g_malloc0(sizeof (*vma))) == NULL) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2501 | return (-1); |
| 2502 | |
| 2503 | vma->vma_start = start; |
| 2504 | vma->vma_end = end; |
| 2505 | vma->vma_flags = flags; |
| 2506 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2507 | QTAILQ_INSERT_TAIL(&mm->mm_mmap, vma, vma_link); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2508 | mm->mm_count++; |
| 2509 | |
| 2510 | return (0); |
| 2511 | } |
| 2512 | |
| 2513 | static struct vm_area_struct *vma_first(const struct mm_struct *mm) |
| 2514 | { |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2515 | return (QTAILQ_FIRST(&mm->mm_mmap)); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2516 | } |
| 2517 | |
| 2518 | static struct vm_area_struct *vma_next(struct vm_area_struct *vma) |
| 2519 | { |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2520 | return (QTAILQ_NEXT(vma, vma_link)); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2521 | } |
| 2522 | |
| 2523 | static int vma_get_mapping_count(const struct mm_struct *mm) |
| 2524 | { |
| 2525 | return (mm->mm_count); |
| 2526 | } |
| 2527 | |
| 2528 | /* |
| 2529 | * Calculate file (dump) size of given memory region. |
| 2530 | */ |
| 2531 | static abi_ulong vma_dump_size(const struct vm_area_struct *vma) |
| 2532 | { |
| 2533 | /* if we cannot even read the first page, skip it */ |
| 2534 | if (!access_ok(VERIFY_READ, vma->vma_start, TARGET_PAGE_SIZE)) |
| 2535 | return (0); |
| 2536 | |
| 2537 | /* |
| 2538 | * Usually we don't dump executable pages as they contain |
| 2539 | * non-writable code that debugger can read directly from |
| 2540 | * target library etc. However, thread stacks are marked |
| 2541 | * also executable so we read in first page of given region |
| 2542 | * and check whether it contains elf header. If there is |
| 2543 | * no elf header, we dump it. |
| 2544 | */ |
| 2545 | if (vma->vma_flags & PROT_EXEC) { |
| 2546 | char page[TARGET_PAGE_SIZE]; |
| 2547 | |
| 2548 | copy_from_user(page, vma->vma_start, sizeof (page)); |
| 2549 | if ((page[EI_MAG0] == ELFMAG0) && |
| 2550 | (page[EI_MAG1] == ELFMAG1) && |
| 2551 | (page[EI_MAG2] == ELFMAG2) && |
| 2552 | (page[EI_MAG3] == ELFMAG3)) { |
| 2553 | /* |
| 2554 | * Mappings are possibly from ELF binary. Don't dump |
| 2555 | * them. |
| 2556 | */ |
| 2557 | return (0); |
| 2558 | } |
| 2559 | } |
| 2560 | |
| 2561 | return (vma->vma_end - vma->vma_start); |
| 2562 | } |
| 2563 | |
Mikhail Ilyin | 1a1c4db | 2014-09-08 17:28:56 +0400 | [diff] [blame] | 2564 | static int vma_walker(void *priv, target_ulong start, target_ulong end, |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2565 | unsigned long flags) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2566 | { |
| 2567 | struct mm_struct *mm = (struct mm_struct *)priv; |
| 2568 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2569 | vma_add_mapping(mm, start, end, flags); |
| 2570 | return (0); |
| 2571 | } |
| 2572 | |
| 2573 | static void fill_note(struct memelfnote *note, const char *name, int type, |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2574 | unsigned int sz, void *data) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2575 | { |
| 2576 | unsigned int namesz; |
| 2577 | |
| 2578 | namesz = strlen(name) + 1; |
| 2579 | note->name = name; |
| 2580 | note->namesz = namesz; |
| 2581 | note->namesz_rounded = roundup(namesz, sizeof (int32_t)); |
| 2582 | note->type = type; |
Laurent Vivier | 80f5ce7 | 2011-02-13 23:37:35 +0100 | [diff] [blame] | 2583 | note->datasz = sz; |
| 2584 | note->datasz_rounded = roundup(sz, sizeof (int32_t)); |
| 2585 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2586 | note->data = data; |
| 2587 | |
| 2588 | /* |
| 2589 | * We calculate rounded up note size here as specified by |
| 2590 | * ELF document. |
| 2591 | */ |
| 2592 | note->notesz = sizeof (struct elf_note) + |
Laurent Vivier | 80f5ce7 | 2011-02-13 23:37:35 +0100 | [diff] [blame] | 2593 | note->namesz_rounded + note->datasz_rounded; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2594 | } |
| 2595 | |
| 2596 | static void fill_elf_header(struct elfhdr *elf, int segs, uint16_t machine, |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2597 | uint32_t flags) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2598 | { |
| 2599 | (void) memset(elf, 0, sizeof(*elf)); |
| 2600 | |
| 2601 | (void) memcpy(elf->e_ident, ELFMAG, SELFMAG); |
| 2602 | elf->e_ident[EI_CLASS] = ELF_CLASS; |
| 2603 | elf->e_ident[EI_DATA] = ELF_DATA; |
| 2604 | elf->e_ident[EI_VERSION] = EV_CURRENT; |
| 2605 | elf->e_ident[EI_OSABI] = ELF_OSABI; |
| 2606 | |
| 2607 | elf->e_type = ET_CORE; |
| 2608 | elf->e_machine = machine; |
| 2609 | elf->e_version = EV_CURRENT; |
| 2610 | elf->e_phoff = sizeof(struct elfhdr); |
| 2611 | elf->e_flags = flags; |
| 2612 | elf->e_ehsize = sizeof(struct elfhdr); |
| 2613 | elf->e_phentsize = sizeof(struct elf_phdr); |
| 2614 | elf->e_phnum = segs; |
| 2615 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2616 | bswap_ehdr(elf); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2617 | } |
| 2618 | |
| 2619 | static void fill_elf_note_phdr(struct elf_phdr *phdr, int sz, off_t offset) |
| 2620 | { |
| 2621 | phdr->p_type = PT_NOTE; |
| 2622 | phdr->p_offset = offset; |
| 2623 | phdr->p_vaddr = 0; |
| 2624 | phdr->p_paddr = 0; |
| 2625 | phdr->p_filesz = sz; |
| 2626 | phdr->p_memsz = 0; |
| 2627 | phdr->p_flags = 0; |
| 2628 | phdr->p_align = 0; |
| 2629 | |
Richard Henderson | 991f8f0 | 2010-07-27 10:25:32 -0700 | [diff] [blame] | 2630 | bswap_phdr(phdr, 1); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2631 | } |
| 2632 | |
| 2633 | static size_t note_size(const struct memelfnote *note) |
| 2634 | { |
| 2635 | return (note->notesz); |
| 2636 | } |
| 2637 | |
Laurent Desnogues | a2547a1 | 2009-07-17 13:33:41 +0100 | [diff] [blame] | 2638 | static void fill_prstatus(struct target_elf_prstatus *prstatus, |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2639 | const TaskState *ts, int signr) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2640 | { |
| 2641 | (void) memset(prstatus, 0, sizeof (*prstatus)); |
| 2642 | prstatus->pr_info.si_signo = prstatus->pr_cursig = signr; |
| 2643 | prstatus->pr_pid = ts->ts_tid; |
| 2644 | prstatus->pr_ppid = getppid(); |
| 2645 | prstatus->pr_pgrp = getpgrp(); |
| 2646 | prstatus->pr_sid = getsid(0); |
| 2647 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2648 | bswap_prstatus(prstatus); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2649 | } |
| 2650 | |
Laurent Desnogues | a2547a1 | 2009-07-17 13:33:41 +0100 | [diff] [blame] | 2651 | static int fill_psinfo(struct target_elf_prpsinfo *psinfo, const TaskState *ts) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2652 | { |
Jim Meyering | 900cfbc | 2012-10-04 13:09:53 +0200 | [diff] [blame] | 2653 | char *base_filename; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2654 | unsigned int i, len; |
| 2655 | |
| 2656 | (void) memset(psinfo, 0, sizeof (*psinfo)); |
| 2657 | |
| 2658 | len = ts->info->arg_end - ts->info->arg_start; |
| 2659 | if (len >= ELF_PRARGSZ) |
| 2660 | len = ELF_PRARGSZ - 1; |
| 2661 | if (copy_from_user(&psinfo->pr_psargs, ts->info->arg_start, len)) |
| 2662 | return -EFAULT; |
| 2663 | for (i = 0; i < len; i++) |
| 2664 | if (psinfo->pr_psargs[i] == 0) |
| 2665 | psinfo->pr_psargs[i] = ' '; |
| 2666 | psinfo->pr_psargs[len] = 0; |
| 2667 | |
| 2668 | psinfo->pr_pid = getpid(); |
| 2669 | psinfo->pr_ppid = getppid(); |
| 2670 | psinfo->pr_pgrp = getpgrp(); |
| 2671 | psinfo->pr_sid = getsid(0); |
| 2672 | psinfo->pr_uid = getuid(); |
| 2673 | psinfo->pr_gid = getgid(); |
| 2674 | |
Jim Meyering | 900cfbc | 2012-10-04 13:09:53 +0200 | [diff] [blame] | 2675 | base_filename = g_path_get_basename(ts->bprm->filename); |
| 2676 | /* |
| 2677 | * Using strncpy here is fine: at max-length, |
| 2678 | * this field is not NUL-terminated. |
| 2679 | */ |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2680 | (void) strncpy(psinfo->pr_fname, base_filename, |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2681 | sizeof(psinfo->pr_fname)); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2682 | |
Jim Meyering | 900cfbc | 2012-10-04 13:09:53 +0200 | [diff] [blame] | 2683 | g_free(base_filename); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2684 | bswap_psinfo(psinfo); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2685 | return (0); |
| 2686 | } |
| 2687 | |
| 2688 | static void fill_auxv_note(struct memelfnote *note, const TaskState *ts) |
| 2689 | { |
| 2690 | elf_addr_t auxv = (elf_addr_t)ts->info->saved_auxv; |
| 2691 | elf_addr_t orig_auxv = auxv; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2692 | void *ptr; |
Alexander Graf | 125b0f5 | 2012-01-28 21:12:14 +0200 | [diff] [blame] | 2693 | int len = ts->info->auxv_len; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2694 | |
| 2695 | /* |
| 2696 | * Auxiliary vector is stored in target process stack. It contains |
| 2697 | * {type, value} pairs that we need to dump into note. This is not |
| 2698 | * strictly necessary but we do it here for sake of completeness. |
| 2699 | */ |
| 2700 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2701 | /* read in whole auxv vector and copy it to memelfnote */ |
| 2702 | ptr = lock_user(VERIFY_READ, orig_auxv, len, 0); |
| 2703 | if (ptr != NULL) { |
| 2704 | fill_note(note, "CORE", NT_AUXV, len, ptr); |
| 2705 | unlock_user(ptr, auxv, len); |
| 2706 | } |
| 2707 | } |
| 2708 | |
| 2709 | /* |
| 2710 | * Constructs name of coredump file. We have following convention |
| 2711 | * for the name: |
| 2712 | * qemu_<basename-of-target-binary>_<date>-<time>_<pid>.core |
| 2713 | * |
| 2714 | * Returns 0 in case of success, -1 otherwise (errno is set). |
| 2715 | */ |
| 2716 | static int core_dump_filename(const TaskState *ts, char *buf, |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2717 | size_t bufsize) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2718 | { |
| 2719 | char timestamp[64]; |
| 2720 | char *filename = NULL; |
| 2721 | char *base_filename = NULL; |
| 2722 | struct timeval tv; |
| 2723 | struct tm tm; |
| 2724 | |
| 2725 | assert(bufsize >= PATH_MAX); |
| 2726 | |
| 2727 | if (gettimeofday(&tv, NULL) < 0) { |
| 2728 | (void) fprintf(stderr, "unable to get current timestamp: %s", |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2729 | strerror(errno)); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2730 | return (-1); |
| 2731 | } |
| 2732 | |
| 2733 | filename = strdup(ts->bprm->filename); |
| 2734 | base_filename = strdup(basename(filename)); |
| 2735 | (void) strftime(timestamp, sizeof (timestamp), "%Y%m%d-%H%M%S", |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2736 | localtime_r(&tv.tv_sec, &tm)); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2737 | (void) snprintf(buf, bufsize, "qemu_%s_%s_%d.core", |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2738 | base_filename, timestamp, (int)getpid()); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2739 | free(base_filename); |
| 2740 | free(filename); |
| 2741 | |
| 2742 | return (0); |
| 2743 | } |
| 2744 | |
| 2745 | static int dump_write(int fd, const void *ptr, size_t size) |
| 2746 | { |
| 2747 | const char *bufp = (const char *)ptr; |
| 2748 | ssize_t bytes_written, bytes_left; |
| 2749 | struct rlimit dumpsize; |
| 2750 | off_t pos; |
| 2751 | |
| 2752 | bytes_written = 0; |
| 2753 | getrlimit(RLIMIT_CORE, &dumpsize); |
| 2754 | if ((pos = lseek(fd, 0, SEEK_CUR))==-1) { |
| 2755 | if (errno == ESPIPE) { /* not a seekable stream */ |
| 2756 | bytes_left = size; |
| 2757 | } else { |
| 2758 | return pos; |
| 2759 | } |
| 2760 | } else { |
| 2761 | if (dumpsize.rlim_cur <= pos) { |
| 2762 | return -1; |
| 2763 | } else if (dumpsize.rlim_cur == RLIM_INFINITY) { |
| 2764 | bytes_left = size; |
| 2765 | } else { |
| 2766 | size_t limit_left=dumpsize.rlim_cur - pos; |
| 2767 | bytes_left = limit_left >= size ? size : limit_left ; |
| 2768 | } |
| 2769 | } |
| 2770 | |
| 2771 | /* |
| 2772 | * In normal conditions, single write(2) should do but |
| 2773 | * in case of socket etc. this mechanism is more portable. |
| 2774 | */ |
| 2775 | do { |
| 2776 | bytes_written = write(fd, bufp, bytes_left); |
| 2777 | if (bytes_written < 0) { |
| 2778 | if (errno == EINTR) |
| 2779 | continue; |
| 2780 | return (-1); |
| 2781 | } else if (bytes_written == 0) { /* eof */ |
| 2782 | return (-1); |
| 2783 | } |
| 2784 | bufp += bytes_written; |
| 2785 | bytes_left -= bytes_written; |
| 2786 | } while (bytes_left > 0); |
| 2787 | |
| 2788 | return (0); |
| 2789 | } |
| 2790 | |
| 2791 | static int write_note(struct memelfnote *men, int fd) |
| 2792 | { |
| 2793 | struct elf_note en; |
| 2794 | |
| 2795 | en.n_namesz = men->namesz; |
| 2796 | en.n_type = men->type; |
| 2797 | en.n_descsz = men->datasz; |
| 2798 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2799 | bswap_note(&en); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2800 | |
| 2801 | if (dump_write(fd, &en, sizeof(en)) != 0) |
| 2802 | return (-1); |
| 2803 | if (dump_write(fd, men->name, men->namesz_rounded) != 0) |
| 2804 | return (-1); |
Laurent Vivier | 80f5ce7 | 2011-02-13 23:37:35 +0100 | [diff] [blame] | 2805 | if (dump_write(fd, men->data, men->datasz_rounded) != 0) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2806 | return (-1); |
| 2807 | |
| 2808 | return (0); |
| 2809 | } |
| 2810 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 2811 | static void fill_thread_info(struct elf_note_info *info, const CPUArchState *env) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2812 | { |
Andreas Färber | 0429a97 | 2013-08-26 18:14:44 +0200 | [diff] [blame] | 2813 | CPUState *cpu = ENV_GET_CPU((CPUArchState *)env); |
| 2814 | TaskState *ts = (TaskState *)cpu->opaque; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2815 | struct elf_thread_status *ets; |
| 2816 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2817 | ets = g_malloc0(sizeof (*ets)); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2818 | ets->num_notes = 1; /* only prstatus is dumped */ |
| 2819 | fill_prstatus(&ets->prstatus, ts, 0); |
| 2820 | elf_core_copy_regs(&ets->prstatus.pr_reg, env); |
| 2821 | fill_note(&ets->notes[0], "CORE", NT_PRSTATUS, sizeof (ets->prstatus), |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2822 | &ets->prstatus); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2823 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2824 | QTAILQ_INSERT_TAIL(&info->thread_list, ets, ets_link); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2825 | |
| 2826 | info->notes_size += note_size(&ets->notes[0]); |
| 2827 | } |
| 2828 | |
Peter Maydell | 6afafa8 | 2014-02-17 18:55:31 +0000 | [diff] [blame] | 2829 | static void init_note_info(struct elf_note_info *info) |
| 2830 | { |
| 2831 | /* Initialize the elf_note_info structure so that it is at |
| 2832 | * least safe to call free_note_info() on it. Must be |
| 2833 | * called before calling fill_note_info(). |
| 2834 | */ |
| 2835 | memset(info, 0, sizeof (*info)); |
| 2836 | QTAILQ_INIT(&info->thread_list); |
| 2837 | } |
| 2838 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2839 | static int fill_note_info(struct elf_note_info *info, |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 2840 | long signr, const CPUArchState *env) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2841 | { |
| 2842 | #define NUMNOTES 3 |
Andreas Färber | 0429a97 | 2013-08-26 18:14:44 +0200 | [diff] [blame] | 2843 | CPUState *cpu = ENV_GET_CPU((CPUArchState *)env); |
| 2844 | TaskState *ts = (TaskState *)cpu->opaque; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2845 | int i; |
| 2846 | |
Markus Armbruster | c78d65e | 2015-09-14 13:53:03 +0200 | [diff] [blame] | 2847 | info->notes = g_new0(struct memelfnote, NUMNOTES); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2848 | if (info->notes == NULL) |
| 2849 | return (-ENOMEM); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2850 | info->prstatus = g_malloc0(sizeof (*info->prstatus)); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2851 | if (info->prstatus == NULL) |
| 2852 | return (-ENOMEM); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2853 | info->psinfo = g_malloc0(sizeof (*info->psinfo)); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2854 | if (info->prstatus == NULL) |
| 2855 | return (-ENOMEM); |
| 2856 | |
| 2857 | /* |
| 2858 | * First fill in status (and registers) of current thread |
| 2859 | * including process info & aux vector. |
| 2860 | */ |
| 2861 | fill_prstatus(info->prstatus, ts, signr); |
| 2862 | elf_core_copy_regs(&info->prstatus->pr_reg, env); |
| 2863 | fill_note(&info->notes[0], "CORE", NT_PRSTATUS, |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2864 | sizeof (*info->prstatus), info->prstatus); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2865 | fill_psinfo(info->psinfo, ts); |
| 2866 | fill_note(&info->notes[1], "CORE", NT_PRPSINFO, |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2867 | sizeof (*info->psinfo), info->psinfo); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2868 | fill_auxv_note(&info->notes[2], ts); |
| 2869 | info->numnote = 3; |
| 2870 | |
| 2871 | info->notes_size = 0; |
| 2872 | for (i = 0; i < info->numnote; i++) |
| 2873 | info->notes_size += note_size(&info->notes[i]); |
| 2874 | |
| 2875 | /* read and fill status of all threads */ |
| 2876 | cpu_list_lock(); |
Andreas Färber | bdc4464 | 2013-06-24 23:50:24 +0200 | [diff] [blame] | 2877 | CPU_FOREACH(cpu) { |
Andreas Färber | a2247f8 | 2013-06-09 19:47:04 +0200 | [diff] [blame] | 2878 | if (cpu == thread_cpu) { |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2879 | continue; |
Andreas Färber | 182735e | 2013-05-29 22:29:20 +0200 | [diff] [blame] | 2880 | } |
| 2881 | fill_thread_info(info, (CPUArchState *)cpu->env_ptr); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2882 | } |
| 2883 | cpu_list_unlock(); |
| 2884 | |
| 2885 | return (0); |
| 2886 | } |
| 2887 | |
| 2888 | static void free_note_info(struct elf_note_info *info) |
| 2889 | { |
| 2890 | struct elf_thread_status *ets; |
| 2891 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 2892 | while (!QTAILQ_EMPTY(&info->thread_list)) { |
| 2893 | ets = QTAILQ_FIRST(&info->thread_list); |
| 2894 | QTAILQ_REMOVE(&info->thread_list, ets, ets_link); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2895 | g_free(ets); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2896 | } |
| 2897 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2898 | g_free(info->prstatus); |
| 2899 | g_free(info->psinfo); |
| 2900 | g_free(info->notes); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2901 | } |
| 2902 | |
| 2903 | static int write_note_info(struct elf_note_info *info, int fd) |
| 2904 | { |
| 2905 | struct elf_thread_status *ets; |
| 2906 | int i, error = 0; |
| 2907 | |
| 2908 | /* write prstatus, psinfo and auxv for current thread */ |
| 2909 | for (i = 0; i < info->numnote; i++) |
| 2910 | if ((error = write_note(&info->notes[i], fd)) != 0) |
| 2911 | return (error); |
| 2912 | |
| 2913 | /* write prstatus for each thread */ |
Emilio G. Cota | 52a53af | 2015-04-27 12:45:33 -0400 | [diff] [blame] | 2914 | QTAILQ_FOREACH(ets, &info->thread_list, ets_link) { |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2915 | if ((error = write_note(&ets->notes[0], fd)) != 0) |
| 2916 | return (error); |
| 2917 | } |
| 2918 | |
| 2919 | return (0); |
| 2920 | } |
| 2921 | |
| 2922 | /* |
| 2923 | * Write out ELF coredump. |
| 2924 | * |
| 2925 | * See documentation of ELF object file format in: |
| 2926 | * http://www.caldera.com/developers/devspecs/gabi41.pdf |
| 2927 | * |
| 2928 | * Coredump format in linux is following: |
| 2929 | * |
| 2930 | * 0 +----------------------+ \ |
| 2931 | * | ELF header | ET_CORE | |
| 2932 | * +----------------------+ | |
| 2933 | * | ELF program headers | |--- headers |
| 2934 | * | - NOTE section | | |
| 2935 | * | - PT_LOAD sections | | |
| 2936 | * +----------------------+ / |
| 2937 | * | NOTEs: | |
| 2938 | * | - NT_PRSTATUS | |
| 2939 | * | - NT_PRSINFO | |
| 2940 | * | - NT_AUXV | |
| 2941 | * +----------------------+ <-- aligned to target page |
| 2942 | * | Process memory dump | |
| 2943 | * : : |
| 2944 | * . . |
| 2945 | * : : |
| 2946 | * | | |
| 2947 | * +----------------------+ |
| 2948 | * |
| 2949 | * NT_PRSTATUS -> struct elf_prstatus (per thread) |
| 2950 | * NT_PRSINFO -> struct elf_prpsinfo |
| 2951 | * NT_AUXV is array of { type, value } pairs (see fill_auxv_note()). |
| 2952 | * |
| 2953 | * Format follows System V format as close as possible. Current |
| 2954 | * version limitations are as follows: |
| 2955 | * - no floating point registers are dumped |
| 2956 | * |
| 2957 | * Function returns 0 in case of success, negative errno otherwise. |
| 2958 | * |
| 2959 | * TODO: make this work also during runtime: it should be |
| 2960 | * possible to force coredump from running process and then |
| 2961 | * continue processing. For example qemu could set up SIGUSR2 |
| 2962 | * handler (provided that target process haven't registered |
| 2963 | * handler for that) that does the dump when signal is received. |
| 2964 | */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 2965 | static int elf_core_dump(int signr, const CPUArchState *env) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2966 | { |
Andreas Färber | 0429a97 | 2013-08-26 18:14:44 +0200 | [diff] [blame] | 2967 | const CPUState *cpu = ENV_GET_CPU((CPUArchState *)env); |
| 2968 | const TaskState *ts = (const TaskState *)cpu->opaque; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2969 | struct vm_area_struct *vma = NULL; |
| 2970 | char corefile[PATH_MAX]; |
| 2971 | struct elf_note_info info; |
| 2972 | struct elfhdr elf; |
| 2973 | struct elf_phdr phdr; |
| 2974 | struct rlimit dumpsize; |
| 2975 | struct mm_struct *mm = NULL; |
| 2976 | off_t offset = 0, data_offset = 0; |
| 2977 | int segs = 0; |
| 2978 | int fd = -1; |
| 2979 | |
Peter Maydell | 6afafa8 | 2014-02-17 18:55:31 +0000 | [diff] [blame] | 2980 | init_note_info(&info); |
| 2981 | |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2982 | errno = 0; |
| 2983 | getrlimit(RLIMIT_CORE, &dumpsize); |
| 2984 | if (dumpsize.rlim_cur == 0) |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2985 | return 0; |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2986 | |
| 2987 | if (core_dump_filename(ts, corefile, sizeof (corefile)) < 0) |
| 2988 | return (-errno); |
| 2989 | |
| 2990 | if ((fd = open(corefile, O_WRONLY | O_CREAT, |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 2991 | S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH)) < 0) |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 2992 | return (-errno); |
| 2993 | |
| 2994 | /* |
| 2995 | * Walk through target process memory mappings and |
| 2996 | * set up structure containing this information. After |
| 2997 | * this point vma_xxx functions can be used. |
| 2998 | */ |
| 2999 | if ((mm = vma_init()) == NULL) |
| 3000 | goto out; |
| 3001 | |
| 3002 | walk_memory_regions(mm, vma_walker); |
| 3003 | segs = vma_get_mapping_count(mm); |
| 3004 | |
| 3005 | /* |
| 3006 | * Construct valid coredump ELF header. We also |
| 3007 | * add one more segment for notes. |
| 3008 | */ |
| 3009 | fill_elf_header(&elf, segs + 1, ELF_MACHINE, 0); |
| 3010 | if (dump_write(fd, &elf, sizeof (elf)) != 0) |
| 3011 | goto out; |
| 3012 | |
Daniel P. Berrange | b6af097 | 2015-08-26 12:17:13 +0100 | [diff] [blame] | 3013 | /* fill in the in-memory version of notes */ |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 3014 | if (fill_note_info(&info, signr, env) < 0) |
| 3015 | goto out; |
| 3016 | |
| 3017 | offset += sizeof (elf); /* elf header */ |
| 3018 | offset += (segs + 1) * sizeof (struct elf_phdr); /* program headers */ |
| 3019 | |
| 3020 | /* write out notes program header */ |
| 3021 | fill_elf_note_phdr(&phdr, info.notes_size, offset); |
| 3022 | |
| 3023 | offset += info.notes_size; |
| 3024 | if (dump_write(fd, &phdr, sizeof (phdr)) != 0) |
| 3025 | goto out; |
| 3026 | |
| 3027 | /* |
| 3028 | * ELF specification wants data to start at page boundary so |
| 3029 | * we align it here. |
| 3030 | */ |
Laurent Vivier | 80f5ce7 | 2011-02-13 23:37:35 +0100 | [diff] [blame] | 3031 | data_offset = offset = roundup(offset, ELF_EXEC_PAGESIZE); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 3032 | |
| 3033 | /* |
| 3034 | * Write program headers for memory regions mapped in |
| 3035 | * the target process. |
| 3036 | */ |
| 3037 | for (vma = vma_first(mm); vma != NULL; vma = vma_next(vma)) { |
| 3038 | (void) memset(&phdr, 0, sizeof (phdr)); |
| 3039 | |
| 3040 | phdr.p_type = PT_LOAD; |
| 3041 | phdr.p_offset = offset; |
| 3042 | phdr.p_vaddr = vma->vma_start; |
| 3043 | phdr.p_paddr = 0; |
| 3044 | phdr.p_filesz = vma_dump_size(vma); |
| 3045 | offset += phdr.p_filesz; |
| 3046 | phdr.p_memsz = vma->vma_end - vma->vma_start; |
| 3047 | phdr.p_flags = vma->vma_flags & PROT_READ ? PF_R : 0; |
| 3048 | if (vma->vma_flags & PROT_WRITE) |
| 3049 | phdr.p_flags |= PF_W; |
| 3050 | if (vma->vma_flags & PROT_EXEC) |
| 3051 | phdr.p_flags |= PF_X; |
| 3052 | phdr.p_align = ELF_EXEC_PAGESIZE; |
| 3053 | |
Laurent Vivier | 80f5ce7 | 2011-02-13 23:37:35 +0100 | [diff] [blame] | 3054 | bswap_phdr(&phdr, 1); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 3055 | dump_write(fd, &phdr, sizeof (phdr)); |
| 3056 | } |
| 3057 | |
| 3058 | /* |
| 3059 | * Next we write notes just after program headers. No |
| 3060 | * alignment needed here. |
| 3061 | */ |
| 3062 | if (write_note_info(&info, fd) < 0) |
| 3063 | goto out; |
| 3064 | |
| 3065 | /* align data to page boundary */ |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 3066 | if (lseek(fd, data_offset, SEEK_SET) != data_offset) |
| 3067 | goto out; |
| 3068 | |
| 3069 | /* |
| 3070 | * Finally we can dump process memory into corefile as well. |
| 3071 | */ |
| 3072 | for (vma = vma_first(mm); vma != NULL; vma = vma_next(vma)) { |
| 3073 | abi_ulong addr; |
| 3074 | abi_ulong end; |
| 3075 | |
| 3076 | end = vma->vma_start + vma_dump_size(vma); |
| 3077 | |
| 3078 | for (addr = vma->vma_start; addr < end; |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 3079 | addr += TARGET_PAGE_SIZE) { |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 3080 | char page[TARGET_PAGE_SIZE]; |
| 3081 | int error; |
| 3082 | |
| 3083 | /* |
| 3084 | * Read in page from target process memory and |
| 3085 | * write it to coredump file. |
| 3086 | */ |
| 3087 | error = copy_from_user(page, addr, sizeof (page)); |
| 3088 | if (error != 0) { |
Aurelien Jarno | 49995e1 | 2009-12-19 20:28:23 +0100 | [diff] [blame] | 3089 | (void) fprintf(stderr, "unable to dump " TARGET_ABI_FMT_lx "\n", |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 3090 | addr); |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 3091 | errno = -error; |
| 3092 | goto out; |
| 3093 | } |
| 3094 | if (dump_write(fd, page, TARGET_PAGE_SIZE) < 0) |
| 3095 | goto out; |
| 3096 | } |
| 3097 | } |
| 3098 | |
Richard Henderson | d97ef72 | 2010-07-27 10:25:29 -0700 | [diff] [blame] | 3099 | out: |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 3100 | free_note_info(&info); |
| 3101 | if (mm != NULL) |
| 3102 | vma_delete(mm); |
| 3103 | (void) close(fd); |
| 3104 | |
| 3105 | if (errno != 0) |
| 3106 | return (-errno); |
| 3107 | return (0); |
| 3108 | } |
Mika Westerberg | edf8e2a | 2009-04-07 09:57:11 +0300 | [diff] [blame] | 3109 | #endif /* USE_ELF_CORE_DUMP */ |
| 3110 | |
pbrook | e5fe0c5 | 2006-06-11 13:32:59 +0000 | [diff] [blame] | 3111 | void do_init_thread(struct target_pt_regs *regs, struct image_info *infop) |
| 3112 | { |
| 3113 | init_thread(regs, infop); |
| 3114 | } |