blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 1 | /* |
| 2 | * qemu user main |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
Blue Swirl | 8167ee8 | 2009-07-16 20:47:01 +0000 | [diff] [blame] | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 18 | */ |
| 19 | #include <stdlib.h> |
| 20 | #include <stdio.h> |
| 21 | #include <stdarg.h> |
| 22 | #include <string.h> |
| 23 | #include <errno.h> |
| 24 | #include <unistd.h> |
| 25 | #include <machine/trap.h> |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 26 | #include <sys/types.h> |
| 27 | #include <sys/mman.h> |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 28 | |
| 29 | #include "qemu.h" |
| 30 | #include "qemu-common.h" |
| 31 | /* For tb_lock */ |
Blue Swirl | 2b41f10 | 2011-06-19 20:38:22 +0000 | [diff] [blame] | 32 | #include "cpu.h" |
Richard Henderson | 9002ec7 | 2010-05-06 08:50:41 -0700 | [diff] [blame] | 33 | #include "tcg.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 34 | #include "qemu/timer.h" |
| 35 | #include "qemu/envlist.h" |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 36 | |
aurel32 | 1b530a6 | 2009-04-05 20:08:59 +0000 | [diff] [blame] | 37 | int singlestep; |
Blue Swirl | 2fa5d9b | 2009-09-27 19:30:51 +0000 | [diff] [blame] | 38 | unsigned long mmap_min_addr; |
| 39 | unsigned long guest_base; |
| 40 | int have_guest_base; |
Peter Maydell | d6ef40b | 2012-04-12 12:43:41 +0100 | [diff] [blame] | 41 | unsigned long reserved_va; |
aurel32 | 1b530a6 | 2009-04-05 20:08:59 +0000 | [diff] [blame] | 42 | |
Paolo Bonzini | 7ee2822 | 2010-05-26 16:08:22 +0200 | [diff] [blame] | 43 | static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX; |
Peter Maydell | fccae32 | 2014-05-09 16:06:41 +0100 | [diff] [blame] | 44 | const char *qemu_uname_release; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 45 | extern char **environ; |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 46 | enum BSDType bsd_type; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 47 | |
| 48 | /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so |
| 49 | we allocate a bigger stack. Need a better solution, for example |
| 50 | by remapping the process stack directly at the right place */ |
| 51 | unsigned long x86_stack_size = 512 * 1024; |
| 52 | |
| 53 | void gemu_log(const char *fmt, ...) |
| 54 | { |
| 55 | va_list ap; |
| 56 | |
| 57 | va_start(ap, fmt); |
| 58 | vfprintf(stderr, fmt, ap); |
| 59 | va_end(ap); |
| 60 | } |
blueswir1 | 9399f09 | 2009-03-07 18:59:05 +0000 | [diff] [blame] | 61 | |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 62 | #if defined(TARGET_I386) |
Andreas Färber | b98e9ca | 2012-02-25 04:29:56 +0100 | [diff] [blame] | 63 | int cpu_get_pic_interrupt(CPUX86State *env) |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 64 | { |
| 65 | return -1; |
| 66 | } |
| 67 | #endif |
| 68 | |
blueswir1 | 9399f09 | 2009-03-07 18:59:05 +0000 | [diff] [blame] | 69 | /* These are no-ops because we are not threadsafe. */ |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 70 | static inline void cpu_exec_start(CPUArchState *env) |
blueswir1 | 9399f09 | 2009-03-07 18:59:05 +0000 | [diff] [blame] | 71 | { |
| 72 | } |
| 73 | |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 74 | static inline void cpu_exec_end(CPUArchState *env) |
blueswir1 | 9399f09 | 2009-03-07 18:59:05 +0000 | [diff] [blame] | 75 | { |
| 76 | } |
| 77 | |
| 78 | static inline void start_exclusive(void) |
| 79 | { |
| 80 | } |
| 81 | |
| 82 | static inline void end_exclusive(void) |
| 83 | { |
| 84 | } |
| 85 | |
| 86 | void fork_start(void) |
| 87 | { |
| 88 | } |
| 89 | |
| 90 | void fork_end(int child) |
| 91 | { |
| 92 | if (child) { |
Peter Crosthwaite | f7ec7f7 | 2015-06-23 19:31:16 -0700 | [diff] [blame] | 93 | gdbserver_fork(thread_cpu); |
blueswir1 | 9399f09 | 2009-03-07 18:59:05 +0000 | [diff] [blame] | 94 | } |
| 95 | } |
| 96 | |
| 97 | void cpu_list_lock(void) |
| 98 | { |
| 99 | } |
| 100 | |
| 101 | void cpu_list_unlock(void) |
| 102 | { |
| 103 | } |
| 104 | |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 105 | #ifdef TARGET_I386 |
| 106 | /***********************************************************/ |
| 107 | /* CPUX86 core interface */ |
| 108 | |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 109 | uint64_t cpu_get_tsc(CPUX86State *env) |
| 110 | { |
Christopher Covington | 4a7428c | 2015-09-25 10:42:21 -0400 | [diff] [blame] | 111 | return cpu_get_host_ticks(); |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | static void write_dt(void *ptr, unsigned long addr, unsigned long limit, |
| 115 | int flags) |
| 116 | { |
| 117 | unsigned int e1, e2; |
| 118 | uint32_t *p; |
| 119 | e1 = (addr << 16) | (limit & 0xffff); |
| 120 | e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000); |
| 121 | e2 |= flags; |
| 122 | p = ptr; |
| 123 | p[0] = tswap32(e1); |
| 124 | p[1] = tswap32(e2); |
| 125 | } |
| 126 | |
| 127 | static uint64_t *idt_table; |
| 128 | #ifdef TARGET_X86_64 |
| 129 | static void set_gate64(void *ptr, unsigned int type, unsigned int dpl, |
| 130 | uint64_t addr, unsigned int sel) |
| 131 | { |
| 132 | uint32_t *p, e1, e2; |
| 133 | e1 = (addr & 0xffff) | (sel << 16); |
| 134 | e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); |
| 135 | p = ptr; |
| 136 | p[0] = tswap32(e1); |
| 137 | p[1] = tswap32(e2); |
| 138 | p[2] = tswap32(addr >> 32); |
| 139 | p[3] = 0; |
| 140 | } |
| 141 | /* only dpl matters as we do only user space emulation */ |
| 142 | static void set_idt(int n, unsigned int dpl) |
| 143 | { |
| 144 | set_gate64(idt_table + n * 2, 0, dpl, 0, 0); |
| 145 | } |
| 146 | #else |
| 147 | static void set_gate(void *ptr, unsigned int type, unsigned int dpl, |
| 148 | uint32_t addr, unsigned int sel) |
| 149 | { |
| 150 | uint32_t *p, e1, e2; |
| 151 | e1 = (addr & 0xffff) | (sel << 16); |
| 152 | e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); |
| 153 | p = ptr; |
| 154 | p[0] = tswap32(e1); |
| 155 | p[1] = tswap32(e2); |
| 156 | } |
| 157 | |
| 158 | /* only dpl matters as we do only user space emulation */ |
| 159 | static void set_idt(int n, unsigned int dpl) |
| 160 | { |
| 161 | set_gate(idt_table + n, 0, dpl, 0, 0); |
| 162 | } |
| 163 | #endif |
| 164 | |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 165 | void cpu_loop(CPUX86State *env) |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 166 | { |
Peter Crosthwaite | ea3e984 | 2015-06-18 10:24:55 -0700 | [diff] [blame] | 167 | X86CPU *cpu = x86_env_get_cpu(env); |
| 168 | CPUState *cs = CPU(cpu); |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 169 | int trapnr; |
| 170 | abi_ulong pc; |
| 171 | //target_siginfo_t info; |
| 172 | |
| 173 | for(;;) { |
Richard Henderson | cb48f67 | 2015-07-29 11:40:52 -0700 | [diff] [blame] | 174 | trapnr = cpu_x86_exec(cs); |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 175 | switch(trapnr) { |
| 176 | case 0x80: |
| 177 | /* syscall from int $0x80 */ |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 178 | if (bsd_type == target_freebsd) { |
| 179 | abi_ulong params = (abi_ulong) env->regs[R_ESP] + |
| 180 | sizeof(int32_t); |
| 181 | int32_t syscall_nr = env->regs[R_EAX]; |
| 182 | int32_t arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8; |
| 183 | |
| 184 | if (syscall_nr == TARGET_FREEBSD_NR_syscall) { |
| 185 | get_user_s32(syscall_nr, params); |
| 186 | params += sizeof(int32_t); |
| 187 | } else if (syscall_nr == TARGET_FREEBSD_NR___syscall) { |
| 188 | get_user_s32(syscall_nr, params); |
| 189 | params += sizeof(int64_t); |
| 190 | } |
| 191 | get_user_s32(arg1, params); |
| 192 | params += sizeof(int32_t); |
| 193 | get_user_s32(arg2, params); |
| 194 | params += sizeof(int32_t); |
| 195 | get_user_s32(arg3, params); |
| 196 | params += sizeof(int32_t); |
| 197 | get_user_s32(arg4, params); |
| 198 | params += sizeof(int32_t); |
| 199 | get_user_s32(arg5, params); |
| 200 | params += sizeof(int32_t); |
| 201 | get_user_s32(arg6, params); |
| 202 | params += sizeof(int32_t); |
| 203 | get_user_s32(arg7, params); |
| 204 | params += sizeof(int32_t); |
| 205 | get_user_s32(arg8, params); |
| 206 | env->regs[R_EAX] = do_freebsd_syscall(env, |
| 207 | syscall_nr, |
| 208 | arg1, |
| 209 | arg2, |
| 210 | arg3, |
| 211 | arg4, |
| 212 | arg5, |
| 213 | arg6, |
| 214 | arg7, |
| 215 | arg8); |
| 216 | } else { //if (bsd_type == target_openbsd) |
| 217 | env->regs[R_EAX] = do_openbsd_syscall(env, |
| 218 | env->regs[R_EAX], |
| 219 | env->regs[R_EBX], |
| 220 | env->regs[R_ECX], |
| 221 | env->regs[R_EDX], |
| 222 | env->regs[R_ESI], |
| 223 | env->regs[R_EDI], |
| 224 | env->regs[R_EBP]); |
| 225 | } |
| 226 | if (((abi_ulong)env->regs[R_EAX]) >= (abi_ulong)(-515)) { |
| 227 | env->regs[R_EAX] = -env->regs[R_EAX]; |
| 228 | env->eflags |= CC_C; |
| 229 | } else { |
| 230 | env->eflags &= ~CC_C; |
| 231 | } |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 232 | break; |
| 233 | #ifndef TARGET_ABI32 |
| 234 | case EXCP_SYSCALL: |
Stefan Weil | 5ba1854 | 2011-05-07 22:20:03 +0200 | [diff] [blame] | 235 | /* syscall from syscall instruction */ |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 236 | if (bsd_type == target_freebsd) |
| 237 | env->regs[R_EAX] = do_freebsd_syscall(env, |
| 238 | env->regs[R_EAX], |
| 239 | env->regs[R_EDI], |
| 240 | env->regs[R_ESI], |
| 241 | env->regs[R_EDX], |
| 242 | env->regs[R_ECX], |
| 243 | env->regs[8], |
| 244 | env->regs[9], 0, 0); |
| 245 | else { //if (bsd_type == target_openbsd) |
| 246 | env->regs[R_EAX] = do_openbsd_syscall(env, |
| 247 | env->regs[R_EAX], |
| 248 | env->regs[R_EDI], |
| 249 | env->regs[R_ESI], |
| 250 | env->regs[R_EDX], |
| 251 | env->regs[10], |
| 252 | env->regs[8], |
| 253 | env->regs[9]); |
| 254 | } |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 255 | env->eip = env->exception_next_eip; |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 256 | if (((abi_ulong)env->regs[R_EAX]) >= (abi_ulong)(-515)) { |
| 257 | env->regs[R_EAX] = -env->regs[R_EAX]; |
| 258 | env->eflags |= CC_C; |
| 259 | } else { |
| 260 | env->eflags &= ~CC_C; |
| 261 | } |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 262 | break; |
| 263 | #endif |
| 264 | #if 0 |
| 265 | case EXCP0B_NOSEG: |
| 266 | case EXCP0C_STACK: |
| 267 | info.si_signo = SIGBUS; |
| 268 | info.si_errno = 0; |
| 269 | info.si_code = TARGET_SI_KERNEL; |
| 270 | info._sifields._sigfault._addr = 0; |
| 271 | queue_signal(env, info.si_signo, &info); |
| 272 | break; |
| 273 | case EXCP0D_GPF: |
| 274 | /* XXX: potential problem if ABI32 */ |
| 275 | #ifndef TARGET_X86_64 |
| 276 | if (env->eflags & VM_MASK) { |
| 277 | handle_vm86_fault(env); |
| 278 | } else |
| 279 | #endif |
| 280 | { |
| 281 | info.si_signo = SIGSEGV; |
| 282 | info.si_errno = 0; |
| 283 | info.si_code = TARGET_SI_KERNEL; |
| 284 | info._sifields._sigfault._addr = 0; |
| 285 | queue_signal(env, info.si_signo, &info); |
| 286 | } |
| 287 | break; |
| 288 | case EXCP0E_PAGE: |
| 289 | info.si_signo = SIGSEGV; |
| 290 | info.si_errno = 0; |
| 291 | if (!(env->error_code & 1)) |
| 292 | info.si_code = TARGET_SEGV_MAPERR; |
| 293 | else |
| 294 | info.si_code = TARGET_SEGV_ACCERR; |
| 295 | info._sifields._sigfault._addr = env->cr[2]; |
| 296 | queue_signal(env, info.si_signo, &info); |
| 297 | break; |
| 298 | case EXCP00_DIVZ: |
| 299 | #ifndef TARGET_X86_64 |
| 300 | if (env->eflags & VM_MASK) { |
| 301 | handle_vm86_trap(env, trapnr); |
| 302 | } else |
| 303 | #endif |
| 304 | { |
| 305 | /* division by zero */ |
| 306 | info.si_signo = SIGFPE; |
| 307 | info.si_errno = 0; |
| 308 | info.si_code = TARGET_FPE_INTDIV; |
| 309 | info._sifields._sigfault._addr = env->eip; |
| 310 | queue_signal(env, info.si_signo, &info); |
| 311 | } |
| 312 | break; |
| 313 | case EXCP01_DB: |
| 314 | case EXCP03_INT3: |
| 315 | #ifndef TARGET_X86_64 |
| 316 | if (env->eflags & VM_MASK) { |
| 317 | handle_vm86_trap(env, trapnr); |
| 318 | } else |
| 319 | #endif |
| 320 | { |
| 321 | info.si_signo = SIGTRAP; |
| 322 | info.si_errno = 0; |
| 323 | if (trapnr == EXCP01_DB) { |
| 324 | info.si_code = TARGET_TRAP_BRKPT; |
| 325 | info._sifields._sigfault._addr = env->eip; |
| 326 | } else { |
| 327 | info.si_code = TARGET_SI_KERNEL; |
| 328 | info._sifields._sigfault._addr = 0; |
| 329 | } |
| 330 | queue_signal(env, info.si_signo, &info); |
| 331 | } |
| 332 | break; |
| 333 | case EXCP04_INTO: |
| 334 | case EXCP05_BOUND: |
| 335 | #ifndef TARGET_X86_64 |
| 336 | if (env->eflags & VM_MASK) { |
| 337 | handle_vm86_trap(env, trapnr); |
| 338 | } else |
| 339 | #endif |
| 340 | { |
| 341 | info.si_signo = SIGSEGV; |
| 342 | info.si_errno = 0; |
| 343 | info.si_code = TARGET_SI_KERNEL; |
| 344 | info._sifields._sigfault._addr = 0; |
| 345 | queue_signal(env, info.si_signo, &info); |
| 346 | } |
| 347 | break; |
| 348 | case EXCP06_ILLOP: |
| 349 | info.si_signo = SIGILL; |
| 350 | info.si_errno = 0; |
| 351 | info.si_code = TARGET_ILL_ILLOPN; |
| 352 | info._sifields._sigfault._addr = env->eip; |
| 353 | queue_signal(env, info.si_signo, &info); |
| 354 | break; |
| 355 | #endif |
| 356 | case EXCP_INTERRUPT: |
| 357 | /* just indicate that signals should be handled asap */ |
| 358 | break; |
| 359 | #if 0 |
| 360 | case EXCP_DEBUG: |
| 361 | { |
| 362 | int sig; |
| 363 | |
| 364 | sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 365 | if (sig) |
| 366 | { |
| 367 | info.si_signo = sig; |
| 368 | info.si_errno = 0; |
| 369 | info.si_code = TARGET_TRAP_BRKPT; |
| 370 | queue_signal(env, info.si_signo, &info); |
| 371 | } |
| 372 | } |
| 373 | break; |
| 374 | #endif |
| 375 | default: |
| 376 | pc = env->segs[R_CS].base + env->eip; |
| 377 | fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n", |
| 378 | (long)pc, trapnr); |
| 379 | abort(); |
| 380 | } |
| 381 | process_pending_signals(env); |
| 382 | } |
| 383 | } |
| 384 | #endif |
| 385 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 386 | #ifdef TARGET_SPARC |
| 387 | #define SPARC64_STACK_BIAS 2047 |
| 388 | |
| 389 | //#define DEBUG_WIN |
| 390 | /* WARNING: dealing with register windows _is_ complicated. More info |
| 391 | can be found at http://www.sics.se/~psm/sparcstack.html */ |
| 392 | static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) |
| 393 | { |
| 394 | index = (index + cwp * 16) % (16 * env->nwindows); |
| 395 | /* wrap handling : if cwp is on the last window, then we use the |
| 396 | registers 'after' the end */ |
| 397 | if (index < 8 && env->cwp == env->nwindows - 1) |
| 398 | index += 16 * env->nwindows; |
| 399 | return index; |
| 400 | } |
| 401 | |
| 402 | /* save the register window 'cwp1' */ |
| 403 | static inline void save_window_offset(CPUSPARCState *env, int cwp1) |
| 404 | { |
| 405 | unsigned int i; |
| 406 | abi_ulong sp_ptr; |
| 407 | |
| 408 | sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; |
| 409 | #ifdef TARGET_SPARC64 |
| 410 | if (sp_ptr & 3) |
| 411 | sp_ptr += SPARC64_STACK_BIAS; |
| 412 | #endif |
| 413 | #if defined(DEBUG_WIN) |
| 414 | printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n", |
| 415 | sp_ptr, cwp1); |
| 416 | #endif |
| 417 | for(i = 0; i < 16; i++) { |
| 418 | /* FIXME - what to do if put_user() fails? */ |
| 419 | put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr); |
| 420 | sp_ptr += sizeof(abi_ulong); |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | static void save_window(CPUSPARCState *env) |
| 425 | { |
| 426 | #ifndef TARGET_SPARC64 |
| 427 | unsigned int new_wim; |
| 428 | new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) & |
| 429 | ((1LL << env->nwindows) - 1); |
| 430 | save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2)); |
| 431 | env->wim = new_wim; |
| 432 | #else |
| 433 | save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2)); |
| 434 | env->cansave++; |
| 435 | env->canrestore--; |
| 436 | #endif |
| 437 | } |
| 438 | |
| 439 | static void restore_window(CPUSPARCState *env) |
| 440 | { |
| 441 | #ifndef TARGET_SPARC64 |
| 442 | unsigned int new_wim; |
| 443 | #endif |
| 444 | unsigned int i, cwp1; |
| 445 | abi_ulong sp_ptr; |
| 446 | |
| 447 | #ifndef TARGET_SPARC64 |
| 448 | new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) & |
| 449 | ((1LL << env->nwindows) - 1); |
| 450 | #endif |
| 451 | |
| 452 | /* restore the invalid window */ |
| 453 | cwp1 = cpu_cwp_inc(env, env->cwp + 1); |
| 454 | sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; |
| 455 | #ifdef TARGET_SPARC64 |
| 456 | if (sp_ptr & 3) |
| 457 | sp_ptr += SPARC64_STACK_BIAS; |
| 458 | #endif |
| 459 | #if defined(DEBUG_WIN) |
| 460 | printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n", |
| 461 | sp_ptr, cwp1); |
| 462 | #endif |
| 463 | for(i = 0; i < 16; i++) { |
| 464 | /* FIXME - what to do if get_user() fails? */ |
| 465 | get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr); |
| 466 | sp_ptr += sizeof(abi_ulong); |
| 467 | } |
| 468 | #ifdef TARGET_SPARC64 |
| 469 | env->canrestore++; |
| 470 | if (env->cleanwin < env->nwindows - 1) |
| 471 | env->cleanwin++; |
| 472 | env->cansave--; |
| 473 | #else |
| 474 | env->wim = new_wim; |
| 475 | #endif |
| 476 | } |
| 477 | |
| 478 | static void flush_windows(CPUSPARCState *env) |
| 479 | { |
| 480 | int offset, cwp1; |
| 481 | |
| 482 | offset = 1; |
| 483 | for(;;) { |
| 484 | /* if restore would invoke restore_window(), then we can stop */ |
| 485 | cwp1 = cpu_cwp_inc(env, env->cwp + offset); |
| 486 | #ifndef TARGET_SPARC64 |
| 487 | if (env->wim & (1 << cwp1)) |
| 488 | break; |
| 489 | #else |
| 490 | if (env->canrestore == 0) |
| 491 | break; |
| 492 | env->cansave++; |
| 493 | env->canrestore--; |
| 494 | #endif |
| 495 | save_window_offset(env, cwp1); |
| 496 | offset++; |
| 497 | } |
| 498 | cwp1 = cpu_cwp_inc(env, env->cwp + 1); |
| 499 | #ifndef TARGET_SPARC64 |
| 500 | /* set wim so that restore will reload the registers */ |
| 501 | env->wim = 1 << cwp1; |
| 502 | #endif |
| 503 | #if defined(DEBUG_WIN) |
| 504 | printf("flush_windows: nb=%d\n", offset - 1); |
| 505 | #endif |
| 506 | } |
| 507 | |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 508 | void cpu_loop(CPUSPARCState *env) |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 509 | { |
Andreas Färber | 878096e | 2013-05-27 01:33:50 +0200 | [diff] [blame] | 510 | CPUState *cs = CPU(sparc_env_get_cpu(env)); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 511 | int trapnr, ret, syscall_nr; |
| 512 | //target_siginfo_t info; |
| 513 | |
| 514 | while (1) { |
Peter Crosthwaite | ea3e984 | 2015-06-18 10:24:55 -0700 | [diff] [blame] | 515 | trapnr = cpu_sparc_exec(cs); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 516 | |
| 517 | switch (trapnr) { |
blueswir1 | 77b9435 | 2008-11-16 11:38:43 +0000 | [diff] [blame] | 518 | #ifndef TARGET_SPARC64 |
| 519 | case 0x80: |
| 520 | #else |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 521 | /* FreeBSD uses 0x141 for syscalls too */ |
| 522 | case 0x141: |
| 523 | if (bsd_type != target_freebsd) |
| 524 | goto badtrap; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 525 | case 0x100: |
blueswir1 | 77b9435 | 2008-11-16 11:38:43 +0000 | [diff] [blame] | 526 | #endif |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 527 | syscall_nr = env->gregs[1]; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 528 | if (bsd_type == target_freebsd) |
| 529 | ret = do_freebsd_syscall(env, syscall_nr, |
| 530 | env->regwptr[0], env->regwptr[1], |
| 531 | env->regwptr[2], env->regwptr[3], |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 532 | env->regwptr[4], env->regwptr[5], 0, 0); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 533 | else if (bsd_type == target_netbsd) |
| 534 | ret = do_netbsd_syscall(env, syscall_nr, |
| 535 | env->regwptr[0], env->regwptr[1], |
| 536 | env->regwptr[2], env->regwptr[3], |
| 537 | env->regwptr[4], env->regwptr[5]); |
blueswir1 | cdba95b | 2008-11-22 20:34:45 +0000 | [diff] [blame] | 538 | else { //if (bsd_type == target_openbsd) |
| 539 | #if defined(TARGET_SPARC64) |
| 540 | syscall_nr &= ~(TARGET_OPENBSD_SYSCALL_G7RFLAG | |
| 541 | TARGET_OPENBSD_SYSCALL_G2RFLAG); |
| 542 | #endif |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 543 | ret = do_openbsd_syscall(env, syscall_nr, |
| 544 | env->regwptr[0], env->regwptr[1], |
| 545 | env->regwptr[2], env->regwptr[3], |
| 546 | env->regwptr[4], env->regwptr[5]); |
blueswir1 | cdba95b | 2008-11-22 20:34:45 +0000 | [diff] [blame] | 547 | } |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 548 | if ((unsigned int)ret >= (unsigned int)(-515)) { |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 549 | ret = -ret; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 550 | #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) |
| 551 | env->xcc |= PSR_CARRY; |
| 552 | #else |
| 553 | env->psr |= PSR_CARRY; |
| 554 | #endif |
| 555 | } else { |
| 556 | #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) |
| 557 | env->xcc &= ~PSR_CARRY; |
| 558 | #else |
| 559 | env->psr &= ~PSR_CARRY; |
| 560 | #endif |
| 561 | } |
| 562 | env->regwptr[0] = ret; |
| 563 | /* next instruction */ |
blueswir1 | cdba95b | 2008-11-22 20:34:45 +0000 | [diff] [blame] | 564 | #if defined(TARGET_SPARC64) |
| 565 | if (bsd_type == target_openbsd && |
| 566 | env->gregs[1] & TARGET_OPENBSD_SYSCALL_G2RFLAG) { |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 567 | env->pc = env->gregs[2]; |
| 568 | env->npc = env->pc + 4; |
blueswir1 | cdba95b | 2008-11-22 20:34:45 +0000 | [diff] [blame] | 569 | } else if (bsd_type == target_openbsd && |
| 570 | env->gregs[1] & TARGET_OPENBSD_SYSCALL_G7RFLAG) { |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 571 | env->pc = env->gregs[7]; |
| 572 | env->npc = env->pc + 4; |
| 573 | } else { |
| 574 | env->pc = env->npc; |
| 575 | env->npc = env->npc + 4; |
| 576 | } |
| 577 | #else |
| 578 | env->pc = env->npc; |
| 579 | env->npc = env->npc + 4; |
| 580 | #endif |
| 581 | break; |
| 582 | case 0x83: /* flush windows */ |
| 583 | #ifdef TARGET_ABI32 |
| 584 | case 0x103: |
| 585 | #endif |
| 586 | flush_windows(env); |
| 587 | /* next instruction */ |
| 588 | env->pc = env->npc; |
| 589 | env->npc = env->npc + 4; |
| 590 | break; |
| 591 | #ifndef TARGET_SPARC64 |
| 592 | case TT_WIN_OVF: /* window overflow */ |
| 593 | save_window(env); |
| 594 | break; |
| 595 | case TT_WIN_UNF: /* window underflow */ |
| 596 | restore_window(env); |
| 597 | break; |
| 598 | case TT_TFAULT: |
| 599 | case TT_DFAULT: |
| 600 | #if 0 |
| 601 | { |
| 602 | info.si_signo = SIGSEGV; |
| 603 | info.si_errno = 0; |
| 604 | /* XXX: check env->error_code */ |
| 605 | info.si_code = TARGET_SEGV_MAPERR; |
| 606 | info._sifields._sigfault._addr = env->mmuregs[4]; |
| 607 | queue_signal(env, info.si_signo, &info); |
| 608 | } |
| 609 | #endif |
| 610 | break; |
| 611 | #else |
| 612 | case TT_SPILL: /* window overflow */ |
| 613 | save_window(env); |
| 614 | break; |
| 615 | case TT_FILL: /* window underflow */ |
| 616 | restore_window(env); |
| 617 | break; |
| 618 | case TT_TFAULT: |
| 619 | case TT_DFAULT: |
| 620 | #if 0 |
| 621 | { |
| 622 | info.si_signo = SIGSEGV; |
| 623 | info.si_errno = 0; |
| 624 | /* XXX: check env->error_code */ |
| 625 | info.si_code = TARGET_SEGV_MAPERR; |
| 626 | if (trapnr == TT_DFAULT) |
| 627 | info._sifields._sigfault._addr = env->dmmuregs[4]; |
| 628 | else |
| 629 | info._sifields._sigfault._addr = env->tsptr->tpc; |
| 630 | //queue_signal(env, info.si_signo, &info); |
| 631 | } |
| 632 | #endif |
| 633 | break; |
| 634 | #endif |
| 635 | case EXCP_INTERRUPT: |
| 636 | /* just indicate that signals should be handled asap */ |
| 637 | break; |
| 638 | case EXCP_DEBUG: |
| 639 | { |
| 640 | int sig; |
| 641 | |
Andreas Färber | db6b81d | 2013-06-27 19:49:31 +0200 | [diff] [blame] | 642 | sig = gdb_handlesig(cs, TARGET_SIGTRAP); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 643 | #if 0 |
| 644 | if (sig) |
| 645 | { |
| 646 | info.si_signo = sig; |
| 647 | info.si_errno = 0; |
| 648 | info.si_code = TARGET_TRAP_BRKPT; |
| 649 | //queue_signal(env, info.si_signo, &info); |
| 650 | } |
| 651 | #endif |
| 652 | } |
| 653 | break; |
| 654 | default: |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 655 | #ifdef TARGET_SPARC64 |
| 656 | badtrap: |
| 657 | #endif |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 658 | printf ("Unhandled trap: 0x%x\n", trapnr); |
Andreas Färber | 878096e | 2013-05-27 01:33:50 +0200 | [diff] [blame] | 659 | cpu_dump_state(cs, stderr, fprintf, 0); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 660 | exit (1); |
| 661 | } |
| 662 | process_pending_signals (env); |
| 663 | } |
| 664 | } |
| 665 | |
| 666 | #endif |
| 667 | |
| 668 | static void usage(void) |
| 669 | { |
Paolo Bonzini | 2e59915 | 2013-06-04 14:45:27 +0200 | [diff] [blame] | 670 | printf("qemu-" TARGET_NAME " version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n" |
| 671 | "usage: qemu-" TARGET_NAME " [options] program [arguments...]\n" |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 672 | "BSD CPU emulator (compiled for %s emulation)\n" |
| 673 | "\n" |
| 674 | "Standard options:\n" |
| 675 | "-h print this help\n" |
| 676 | "-g port wait gdb connection to port\n" |
| 677 | "-L path set the elf interpreter prefix (default=%s)\n" |
| 678 | "-s size set the stack size in bytes (default=%ld)\n" |
Peter Maydell | c8057f9 | 2012-08-02 13:45:54 +0100 | [diff] [blame] | 679 | "-cpu model select CPU (-cpu help for list)\n" |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 680 | "-drop-ld-preload drop LD_PRELOAD for target process\n" |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 681 | "-E var=value sets/modifies targets environment variable(s)\n" |
| 682 | "-U var unsets targets environment variable(s)\n" |
Blue Swirl | 2fa5d9b | 2009-09-27 19:30:51 +0000 | [diff] [blame] | 683 | "-B address set guest_base address to address\n" |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 684 | "-bsd type select emulated BSD type FreeBSD/NetBSD/OpenBSD (default)\n" |
| 685 | "\n" |
| 686 | "Debug options:\n" |
Peter Maydell | 989b697 | 2013-02-26 17:52:40 +0000 | [diff] [blame] | 687 | "-d item1[,...] enable logging of specified items\n" |
| 688 | " (use '-d help' for a list of log items)\n" |
| 689 | "-D logfile write logs to 'logfile' (default stderr)\n" |
| 690 | "-p pagesize set the host page size to 'pagesize'\n" |
| 691 | "-singlestep always run in singlestep mode\n" |
| 692 | "-strace log system calls\n" |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 693 | "\n" |
| 694 | "Environment variables:\n" |
| 695 | "QEMU_STRACE Print system calls and arguments similar to the\n" |
| 696 | " 'strace' program. Enable by setting to any value.\n" |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 697 | "You can use -E and -U options to set/unset environment variables\n" |
| 698 | "for target process. It is possible to provide several variables\n" |
| 699 | "by repeating the option. For example:\n" |
| 700 | " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n" |
| 701 | "Note that if you provide several changes to single variable\n" |
| 702 | "last change will stay in effect.\n" |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 703 | , |
Paolo Bonzini | 2e59915 | 2013-06-04 14:45:27 +0200 | [diff] [blame] | 704 | TARGET_NAME, |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 705 | interp_prefix, |
Peter Maydell | 989b697 | 2013-02-26 17:52:40 +0000 | [diff] [blame] | 706 | x86_stack_size); |
blueswir1 | 2d18e63 | 2009-02-28 20:14:00 +0000 | [diff] [blame] | 707 | exit(1); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 708 | } |
| 709 | |
Andreas Färber | dca1173 | 2013-06-09 19:51:23 +0200 | [diff] [blame] | 710 | THREAD CPUState *thread_cpu; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 711 | |
| 712 | /* Assumes contents are already zeroed. */ |
| 713 | void init_task_state(TaskState *ts) |
| 714 | { |
| 715 | int i; |
| 716 | |
| 717 | ts->used = 1; |
| 718 | ts->first_free = ts->sigqueue_table; |
| 719 | for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) { |
| 720 | ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1]; |
| 721 | } |
| 722 | ts->sigqueue_table[i].next = NULL; |
| 723 | } |
| 724 | |
| 725 | int main(int argc, char **argv) |
| 726 | { |
| 727 | const char *filename; |
| 728 | const char *cpu_model; |
Peter Maydell | 989b697 | 2013-02-26 17:52:40 +0000 | [diff] [blame] | 729 | const char *log_file = NULL; |
Matthew Fernandez | c235d73 | 2011-06-07 16:32:40 +0000 | [diff] [blame] | 730 | const char *log_mask = NULL; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 731 | struct target_pt_regs regs1, *regs = ®s1; |
| 732 | struct image_info info1, *info = &info1; |
| 733 | TaskState ts1, *ts = &ts1; |
Andreas Färber | 9349b4f | 2012-03-14 01:38:32 +0100 | [diff] [blame] | 734 | CPUArchState *env; |
Andreas Färber | db6b81d | 2013-06-27 19:49:31 +0200 | [diff] [blame] | 735 | CPUState *cpu; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 736 | int optind; |
| 737 | const char *r; |
| 738 | int gdbstub_port = 0; |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 739 | char **target_environ, **wrk; |
| 740 | envlist_t *envlist = NULL; |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 741 | bsd_type = target_openbsd; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 742 | |
| 743 | if (argc <= 1) |
| 744 | usage(); |
| 745 | |
Andreas Färber | ce008c1 | 2012-03-04 21:32:36 +0100 | [diff] [blame] | 746 | module_call_init(MODULE_INIT_QOM); |
| 747 | |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 748 | if ((envlist = envlist_create()) == NULL) { |
| 749 | (void) fprintf(stderr, "Unable to allocate envlist\n"); |
| 750 | exit(1); |
| 751 | } |
| 752 | |
| 753 | /* add current environment into the list */ |
| 754 | for (wrk = environ; *wrk != NULL; wrk++) { |
| 755 | (void) envlist_setenv(envlist, *wrk); |
| 756 | } |
| 757 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 758 | cpu_model = NULL; |
Juergen Lock | 0c62de2 | 2010-03-22 19:12:43 +0100 | [diff] [blame] | 759 | #if defined(cpudef_setup) |
| 760 | cpudef_setup(); /* parse cpu definitions in target config file (TBD) */ |
| 761 | #endif |
| 762 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 763 | optind = 1; |
| 764 | for(;;) { |
| 765 | if (optind >= argc) |
| 766 | break; |
| 767 | r = argv[optind]; |
| 768 | if (r[0] != '-') |
| 769 | break; |
| 770 | optind++; |
| 771 | r++; |
| 772 | if (!strcmp(r, "-")) { |
| 773 | break; |
| 774 | } else if (!strcmp(r, "d")) { |
Matthew Fernandez | c235d73 | 2011-06-07 16:32:40 +0000 | [diff] [blame] | 775 | if (optind >= argc) { |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 776 | break; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 777 | } |
Matthew Fernandez | c235d73 | 2011-06-07 16:32:40 +0000 | [diff] [blame] | 778 | log_mask = argv[optind++]; |
| 779 | } else if (!strcmp(r, "D")) { |
| 780 | if (optind >= argc) { |
| 781 | break; |
| 782 | } |
| 783 | log_file = argv[optind++]; |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 784 | } else if (!strcmp(r, "E")) { |
| 785 | r = argv[optind++]; |
| 786 | if (envlist_setenv(envlist, r) != 0) |
| 787 | usage(); |
Stefan Weil | f66724c | 2010-07-15 22:28:02 +0200 | [diff] [blame] | 788 | } else if (!strcmp(r, "ignore-environment")) { |
| 789 | envlist_free(envlist); |
| 790 | if ((envlist = envlist_create()) == NULL) { |
| 791 | (void) fprintf(stderr, "Unable to allocate envlist\n"); |
| 792 | exit(1); |
| 793 | } |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 794 | } else if (!strcmp(r, "U")) { |
| 795 | r = argv[optind++]; |
| 796 | if (envlist_unsetenv(envlist, r) != 0) |
| 797 | usage(); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 798 | } else if (!strcmp(r, "s")) { |
| 799 | r = argv[optind++]; |
| 800 | x86_stack_size = strtol(r, (char **)&r, 0); |
| 801 | if (x86_stack_size <= 0) |
| 802 | usage(); |
| 803 | if (*r == 'M') |
| 804 | x86_stack_size *= 1024 * 1024; |
| 805 | else if (*r == 'k' || *r == 'K') |
| 806 | x86_stack_size *= 1024; |
| 807 | } else if (!strcmp(r, "L")) { |
| 808 | interp_prefix = argv[optind++]; |
| 809 | } else if (!strcmp(r, "p")) { |
| 810 | qemu_host_page_size = atoi(argv[optind++]); |
| 811 | if (qemu_host_page_size == 0 || |
| 812 | (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { |
| 813 | fprintf(stderr, "page size must be a power of two\n"); |
| 814 | exit(1); |
| 815 | } |
| 816 | } else if (!strcmp(r, "g")) { |
| 817 | gdbstub_port = atoi(argv[optind++]); |
| 818 | } else if (!strcmp(r, "r")) { |
| 819 | qemu_uname_release = argv[optind++]; |
| 820 | } else if (!strcmp(r, "cpu")) { |
| 821 | cpu_model = argv[optind++]; |
Peter Maydell | c8057f9 | 2012-08-02 13:45:54 +0100 | [diff] [blame] | 822 | if (is_help_option(cpu_model)) { |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 823 | /* XXX: implement xxx_cpu_list for targets that still miss it */ |
| 824 | #if defined(cpu_list) |
| 825 | cpu_list(stdout, &fprintf); |
| 826 | #endif |
blueswir1 | 2d18e63 | 2009-02-28 20:14:00 +0000 | [diff] [blame] | 827 | exit(1); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 828 | } |
Blue Swirl | 2fa5d9b | 2009-09-27 19:30:51 +0000 | [diff] [blame] | 829 | } else if (!strcmp(r, "B")) { |
| 830 | guest_base = strtol(argv[optind++], NULL, 0); |
| 831 | have_guest_base = 1; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 832 | } else if (!strcmp(r, "drop-ld-preload")) { |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 833 | (void) envlist_unsetenv(envlist, "LD_PRELOAD"); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 834 | } else if (!strcmp(r, "bsd")) { |
| 835 | if (!strcasecmp(argv[optind], "freebsd")) { |
| 836 | bsd_type = target_freebsd; |
| 837 | } else if (!strcasecmp(argv[optind], "netbsd")) { |
| 838 | bsd_type = target_netbsd; |
| 839 | } else if (!strcasecmp(argv[optind], "openbsd")) { |
| 840 | bsd_type = target_openbsd; |
| 841 | } else { |
| 842 | usage(); |
| 843 | } |
| 844 | optind++; |
aurel32 | 1b530a6 | 2009-04-05 20:08:59 +0000 | [diff] [blame] | 845 | } else if (!strcmp(r, "singlestep")) { |
| 846 | singlestep = 1; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 847 | } else if (!strcmp(r, "strace")) { |
| 848 | do_strace = 1; |
| 849 | } else |
| 850 | { |
| 851 | usage(); |
| 852 | } |
| 853 | } |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 854 | |
Matthew Fernandez | c235d73 | 2011-06-07 16:32:40 +0000 | [diff] [blame] | 855 | /* init debug */ |
Peter Maydell | 9a7e542 | 2013-02-11 16:41:20 +0000 | [diff] [blame] | 856 | qemu_set_log_filename(log_file); |
Matthew Fernandez | c235d73 | 2011-06-07 16:32:40 +0000 | [diff] [blame] | 857 | if (log_mask) { |
| 858 | int mask; |
Matthew Fernandez | c235d73 | 2011-06-07 16:32:40 +0000 | [diff] [blame] | 859 | |
Peter Maydell | 4fde1eb | 2013-02-11 16:41:22 +0000 | [diff] [blame] | 860 | mask = qemu_str_to_log_mask(log_mask); |
Matthew Fernandez | c235d73 | 2011-06-07 16:32:40 +0000 | [diff] [blame] | 861 | if (!mask) { |
Peter Maydell | 59a6fa6 | 2013-02-11 16:41:21 +0000 | [diff] [blame] | 862 | qemu_print_log_usage(stdout); |
Matthew Fernandez | c235d73 | 2011-06-07 16:32:40 +0000 | [diff] [blame] | 863 | exit(1); |
| 864 | } |
Peter Maydell | 24537a0 | 2013-02-11 16:41:23 +0000 | [diff] [blame] | 865 | qemu_set_log(mask); |
Matthew Fernandez | c235d73 | 2011-06-07 16:32:40 +0000 | [diff] [blame] | 866 | } |
| 867 | |
Peter Maydell | 4b5dfd8 | 2011-07-18 11:44:09 +0100 | [diff] [blame] | 868 | if (optind >= argc) { |
| 869 | usage(); |
| 870 | } |
| 871 | filename = argv[optind]; |
| 872 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 873 | /* Zero out regs */ |
| 874 | memset(regs, 0, sizeof(struct target_pt_regs)); |
| 875 | |
| 876 | /* Zero out image_info */ |
| 877 | memset(info, 0, sizeof(struct image_info)); |
| 878 | |
| 879 | /* Scan interp_prefix dir for replacement files. */ |
| 880 | init_paths(interp_prefix); |
| 881 | |
| 882 | if (cpu_model == NULL) { |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 883 | #if defined(TARGET_I386) |
| 884 | #ifdef TARGET_X86_64 |
| 885 | cpu_model = "qemu64"; |
| 886 | #else |
| 887 | cpu_model = "qemu32"; |
| 888 | #endif |
| 889 | #elif defined(TARGET_SPARC) |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 890 | #ifdef TARGET_SPARC64 |
| 891 | cpu_model = "TI UltraSparc II"; |
| 892 | #else |
| 893 | cpu_model = "Fujitsu MB86904"; |
| 894 | #endif |
| 895 | #else |
| 896 | cpu_model = "any"; |
| 897 | #endif |
| 898 | } |
Jan Kiszka | d5ab971 | 2011-08-02 16:10:21 +0200 | [diff] [blame] | 899 | tcg_exec_init(0); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 900 | /* NOTE: we need to init the CPU at this stage to get |
| 901 | qemu_host_page_size */ |
Eduardo Habkost | 2994fd9 | 2015-02-26 17:37:49 -0300 | [diff] [blame] | 902 | cpu = cpu_init(cpu_model); |
| 903 | if (!cpu) { |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 904 | fprintf(stderr, "Unable to find CPU definition\n"); |
| 905 | exit(1); |
| 906 | } |
Eduardo Habkost | 2994fd9 | 2015-02-26 17:37:49 -0300 | [diff] [blame] | 907 | env = cpu->env_ptr; |
Andreas Färber | 7786812 | 2013-01-20 05:34:10 +0100 | [diff] [blame] | 908 | #if defined(TARGET_SPARC) || defined(TARGET_PPC) |
Andreas Färber | db6b81d | 2013-06-27 19:49:31 +0200 | [diff] [blame] | 909 | cpu_reset(cpu); |
Blue Swirl | b55a37c | 2009-11-07 10:37:06 +0000 | [diff] [blame] | 910 | #endif |
Andreas Färber | db6b81d | 2013-06-27 19:49:31 +0200 | [diff] [blame] | 911 | thread_cpu = cpu; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 912 | |
| 913 | if (getenv("QEMU_STRACE")) { |
| 914 | do_strace = 1; |
| 915 | } |
| 916 | |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 917 | target_environ = envlist_to_environ(envlist, NULL); |
| 918 | envlist_free(envlist); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 919 | |
Blue Swirl | 2fa5d9b | 2009-09-27 19:30:51 +0000 | [diff] [blame] | 920 | /* |
| 921 | * Now that page sizes are configured in cpu_init() we can do |
| 922 | * proper page alignment for guest_base. |
| 923 | */ |
| 924 | guest_base = HOST_PAGE_ALIGN(guest_base); |
| 925 | |
| 926 | /* |
| 927 | * Read in mmap_min_addr kernel parameter. This value is used |
| 928 | * When loading the ELF image to determine whether guest_base |
| 929 | * is needed. |
| 930 | * |
| 931 | * When user has explicitly set the quest base, we skip this |
| 932 | * test. |
| 933 | */ |
| 934 | if (!have_guest_base) { |
| 935 | FILE *fp; |
| 936 | |
| 937 | if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) { |
| 938 | unsigned long tmp; |
| 939 | if (fscanf(fp, "%lu", &tmp) == 1) { |
| 940 | mmap_min_addr = tmp; |
Paolo Bonzini | 1382902 | 2015-11-13 12:32:19 +0100 | [diff] [blame] | 941 | qemu_log_mask(CPU_LOG_PAGE, "host mmap_min_addr=0x%lx\n", mmap_min_addr); |
Blue Swirl | 2fa5d9b | 2009-09-27 19:30:51 +0000 | [diff] [blame] | 942 | } |
| 943 | fclose(fp); |
| 944 | } |
| 945 | } |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 946 | |
| 947 | if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) { |
| 948 | printf("Error loading %s\n", filename); |
| 949 | _exit(1); |
| 950 | } |
| 951 | |
| 952 | for (wrk = target_environ; *wrk; wrk++) { |
| 953 | free(*wrk); |
| 954 | } |
| 955 | |
| 956 | free(target_environ); |
| 957 | |
Paolo Bonzini | 1382902 | 2015-11-13 12:32:19 +0100 | [diff] [blame] | 958 | if (qemu_loglevel_mask(CPU_LOG_PAGE)) { |
Blue Swirl | 2fa5d9b | 2009-09-27 19:30:51 +0000 | [diff] [blame] | 959 | qemu_log("guest_base 0x%lx\n", guest_base); |
blueswir1 | 2e77eac | 2009-01-20 16:57:34 +0000 | [diff] [blame] | 960 | log_page_dump(); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 961 | |
blueswir1 | 2e77eac | 2009-01-20 16:57:34 +0000 | [diff] [blame] | 962 | qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk); |
| 963 | qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code); |
| 964 | qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n", |
| 965 | info->start_code); |
| 966 | qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n", |
| 967 | info->start_data); |
| 968 | qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data); |
| 969 | qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n", |
| 970 | info->start_stack); |
| 971 | qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk); |
| 972 | qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry); |
| 973 | } |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 974 | |
| 975 | target_set_brk(info->brk); |
| 976 | syscall_init(); |
| 977 | signal_init(); |
| 978 | |
Richard Henderson | 9002ec7 | 2010-05-06 08:50:41 -0700 | [diff] [blame] | 979 | /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay |
| 980 | generating the prologue until now so that the prologue can take |
| 981 | the real value of GUEST_BASE into account. */ |
| 982 | tcg_prologue_init(&tcg_ctx); |
Richard Henderson | 9002ec7 | 2010-05-06 08:50:41 -0700 | [diff] [blame] | 983 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 984 | /* build Task State */ |
| 985 | memset(ts, 0, sizeof(TaskState)); |
| 986 | init_task_state(ts); |
| 987 | ts->info = info; |
Andreas Färber | 0429a97 | 2013-08-26 18:14:44 +0200 | [diff] [blame] | 988 | cpu->opaque = ts; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 989 | |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 990 | #if defined(TARGET_I386) |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 991 | env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK; |
Paolo Bonzini | b98dbc9 | 2014-05-15 16:07:04 +0200 | [diff] [blame] | 992 | env->hflags |= HF_PE_MASK | HF_CPL_MASK; |
Eduardo Habkost | 0514ef2 | 2013-04-22 16:00:15 -0300 | [diff] [blame] | 993 | if (env->features[FEAT_1_EDX] & CPUID_SSE) { |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 994 | env->cr[4] |= CR4_OSFXSR_MASK; |
| 995 | env->hflags |= HF_OSFXSR_MASK; |
| 996 | } |
| 997 | #ifndef TARGET_ABI32 |
| 998 | /* enable 64 bit mode if possible */ |
Eduardo Habkost | 0514ef2 | 2013-04-22 16:00:15 -0300 | [diff] [blame] | 999 | if (!(env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_LM)) { |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 1000 | fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n"); |
| 1001 | exit(1); |
| 1002 | } |
| 1003 | env->cr[4] |= CR4_PAE_MASK; |
| 1004 | env->efer |= MSR_EFER_LMA | MSR_EFER_LME; |
| 1005 | env->hflags |= HF_LMA_MASK; |
| 1006 | #endif |
| 1007 | |
| 1008 | /* flags setup : we activate the IRQs by default as in user mode */ |
| 1009 | env->eflags |= IF_MASK; |
| 1010 | |
| 1011 | /* linux register setup */ |
| 1012 | #ifndef TARGET_ABI32 |
| 1013 | env->regs[R_EAX] = regs->rax; |
| 1014 | env->regs[R_EBX] = regs->rbx; |
| 1015 | env->regs[R_ECX] = regs->rcx; |
| 1016 | env->regs[R_EDX] = regs->rdx; |
| 1017 | env->regs[R_ESI] = regs->rsi; |
| 1018 | env->regs[R_EDI] = regs->rdi; |
| 1019 | env->regs[R_EBP] = regs->rbp; |
| 1020 | env->regs[R_ESP] = regs->rsp; |
| 1021 | env->eip = regs->rip; |
| 1022 | #else |
| 1023 | env->regs[R_EAX] = regs->eax; |
| 1024 | env->regs[R_EBX] = regs->ebx; |
| 1025 | env->regs[R_ECX] = regs->ecx; |
| 1026 | env->regs[R_EDX] = regs->edx; |
| 1027 | env->regs[R_ESI] = regs->esi; |
| 1028 | env->regs[R_EDI] = regs->edi; |
| 1029 | env->regs[R_EBP] = regs->ebp; |
| 1030 | env->regs[R_ESP] = regs->esp; |
| 1031 | env->eip = regs->eip; |
| 1032 | #endif |
| 1033 | |
| 1034 | /* linux interrupt setup */ |
| 1035 | #ifndef TARGET_ABI32 |
| 1036 | env->idt.limit = 511; |
| 1037 | #else |
| 1038 | env->idt.limit = 255; |
| 1039 | #endif |
| 1040 | env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1), |
| 1041 | PROT_READ|PROT_WRITE, |
| 1042 | MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
| 1043 | idt_table = g2h(env->idt.base); |
| 1044 | set_idt(0, 0); |
| 1045 | set_idt(1, 0); |
| 1046 | set_idt(2, 0); |
| 1047 | set_idt(3, 3); |
| 1048 | set_idt(4, 3); |
| 1049 | set_idt(5, 0); |
| 1050 | set_idt(6, 0); |
| 1051 | set_idt(7, 0); |
| 1052 | set_idt(8, 0); |
| 1053 | set_idt(9, 0); |
| 1054 | set_idt(10, 0); |
| 1055 | set_idt(11, 0); |
| 1056 | set_idt(12, 0); |
| 1057 | set_idt(13, 0); |
| 1058 | set_idt(14, 0); |
| 1059 | set_idt(15, 0); |
| 1060 | set_idt(16, 0); |
| 1061 | set_idt(17, 0); |
| 1062 | set_idt(18, 0); |
| 1063 | set_idt(19, 0); |
| 1064 | set_idt(0x80, 3); |
| 1065 | |
| 1066 | /* linux segment setup */ |
| 1067 | { |
| 1068 | uint64_t *gdt_table; |
| 1069 | env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES, |
| 1070 | PROT_READ|PROT_WRITE, |
| 1071 | MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
| 1072 | env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1; |
| 1073 | gdt_table = g2h(env->gdt.base); |
| 1074 | #ifdef TARGET_ABI32 |
| 1075 | write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
| 1076 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 1077 | (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
| 1078 | #else |
| 1079 | /* 64 bit code segment */ |
| 1080 | write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
| 1081 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 1082 | DESC_L_MASK | |
| 1083 | (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
| 1084 | #endif |
| 1085 | write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, |
| 1086 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 1087 | (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); |
| 1088 | } |
| 1089 | |
| 1090 | cpu_x86_load_seg(env, R_CS, __USER_CS); |
| 1091 | cpu_x86_load_seg(env, R_SS, __USER_DS); |
| 1092 | #ifdef TARGET_ABI32 |
| 1093 | cpu_x86_load_seg(env, R_DS, __USER_DS); |
| 1094 | cpu_x86_load_seg(env, R_ES, __USER_DS); |
| 1095 | cpu_x86_load_seg(env, R_FS, __USER_DS); |
| 1096 | cpu_x86_load_seg(env, R_GS, __USER_DS); |
| 1097 | /* This hack makes Wine work... */ |
| 1098 | env->segs[R_FS].selector = 0; |
| 1099 | #else |
| 1100 | cpu_x86_load_seg(env, R_DS, 0); |
| 1101 | cpu_x86_load_seg(env, R_ES, 0); |
| 1102 | cpu_x86_load_seg(env, R_FS, 0); |
| 1103 | cpu_x86_load_seg(env, R_GS, 0); |
| 1104 | #endif |
| 1105 | #elif defined(TARGET_SPARC) |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 1106 | { |
| 1107 | int i; |
| 1108 | env->pc = regs->pc; |
| 1109 | env->npc = regs->npc; |
| 1110 | env->y = regs->y; |
| 1111 | for(i = 0; i < 8; i++) |
| 1112 | env->gregs[i] = regs->u_regs[i]; |
| 1113 | for(i = 0; i < 8; i++) |
| 1114 | env->regwptr[i] = regs->u_regs[i + 8]; |
| 1115 | } |
| 1116 | #else |
| 1117 | #error unsupported target CPU |
| 1118 | #endif |
| 1119 | |
| 1120 | if (gdbstub_port) { |
| 1121 | gdbserver_start (gdbstub_port); |
Andreas Färber | db6b81d | 2013-06-27 19:49:31 +0200 | [diff] [blame] | 1122 | gdb_handlesig(cpu, 0); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 1123 | } |
Juergen Lock | 78cfb07 | 2009-10-17 00:34:26 +0200 | [diff] [blame] | 1124 | cpu_loop(env); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 1125 | /* never exits */ |
| 1126 | return 0; |
| 1127 | } |