| /* |
| * qemu user main |
| * |
| * Copyright (c) 2003-2008 Fabrice Bellard |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| * MA 02110-1301, USA. |
| */ |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <stdarg.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <sys/mman.h> |
| |
| #include "qemu.h" |
| #include "qemu-common.h" |
| #include "cache-utils.h" |
| /* For tb_lock */ |
| #include "exec-all.h" |
| |
| #define DEBUG_LOGFILE "/tmp/qemu.log" |
| |
| static const char *interp_prefix = CONFIG_QEMU_PREFIX; |
| const char *qemu_uname_release = CONFIG_UNAME_RELEASE; |
| |
| #if defined(__i386__) && !defined(CONFIG_STATIC) |
| /* Force usage of an ELF interpreter even if it is an ELF shared |
| object ! */ |
| const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2"; |
| #endif |
| |
| /* for recent libc, we add these dummy symbols which are not declared |
| when generating a linked object (bug in ld ?) */ |
| #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC) |
| asm(".globl __preinit_array_start\n" |
| ".globl __preinit_array_end\n" |
| ".globl __init_array_start\n" |
| ".globl __init_array_end\n" |
| ".globl __fini_array_start\n" |
| ".globl __fini_array_end\n" |
| ".section \".rodata\"\n" |
| "__preinit_array_start:\n" |
| "__preinit_array_end:\n" |
| "__init_array_start:\n" |
| "__init_array_end:\n" |
| "__fini_array_start:\n" |
| "__fini_array_end:\n" |
| ".long 0\n" |
| ".previous\n"); |
| #endif |
| |
| /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so |
| we allocate a bigger stack. Need a better solution, for example |
| by remapping the process stack directly at the right place */ |
| unsigned long x86_stack_size = 512 * 1024; |
| |
| void gemu_log(const char *fmt, ...) |
| { |
| va_list ap; |
| |
| va_start(ap, fmt); |
| vfprintf(stderr, fmt, ap); |
| va_end(ap); |
| } |
| |
| void cpu_outb(CPUState *env, int addr, int val) |
| { |
| fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val); |
| } |
| |
| void cpu_outw(CPUState *env, int addr, int val) |
| { |
| fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val); |
| } |
| |
| void cpu_outl(CPUState *env, int addr, int val) |
| { |
| fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val); |
| } |
| |
| int cpu_inb(CPUState *env, int addr) |
| { |
| fprintf(stderr, "inb: port=0x%04x\n", addr); |
| return 0; |
| } |
| |
| int cpu_inw(CPUState *env, int addr) |
| { |
| fprintf(stderr, "inw: port=0x%04x\n", addr); |
| return 0; |
| } |
| |
| int cpu_inl(CPUState *env, int addr) |
| { |
| fprintf(stderr, "inl: port=0x%04x\n", addr); |
| return 0; |
| } |
| |
| #if defined(TARGET_I386) |
| int cpu_get_pic_interrupt(CPUState *env) |
| { |
| return -1; |
| } |
| #endif |
| |
| /* timers for rdtsc */ |
| |
| #if 0 |
| |
| static uint64_t emu_time; |
| |
| int64_t cpu_get_real_ticks(void) |
| { |
| return emu_time++; |
| } |
| |
| #endif |
| |
| #if defined(USE_NPTL) |
| /***********************************************************/ |
| /* Helper routines for implementing atomic operations. */ |
| |
| /* To implement exclusive operations we force all cpus to syncronise. |
| We don't require a full sync, only that no cpus are executing guest code. |
| The alternative is to map target atomic ops onto host equivalents, |
| which requires quite a lot of per host/target work. */ |
| static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER; |
| static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER; |
| static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER; |
| static int pending_cpus; |
| |
| /* Make sure everything is in a consistent state for calling fork(). */ |
| void fork_start(void) |
| { |
| mmap_fork_start(); |
| pthread_mutex_lock(&tb_lock); |
| pthread_mutex_lock(&exclusive_lock); |
| } |
| |
| void fork_end(int child) |
| { |
| if (child) { |
| /* Child processes created by fork() only have a single thread. |
| Discard information about the parent threads. */ |
| first_cpu = thread_env; |
| thread_env->next_cpu = NULL; |
| pending_cpus = 0; |
| pthread_mutex_init(&exclusive_lock, NULL); |
| pthread_cond_init(&exclusive_cond, NULL); |
| pthread_cond_init(&exclusive_resume, NULL); |
| pthread_mutex_init(&tb_lock, NULL); |
| gdbserver_fork(thread_env); |
| } else { |
| pthread_mutex_unlock(&exclusive_lock); |
| pthread_mutex_unlock(&tb_lock); |
| } |
| mmap_fork_end(child); |
| } |
| |
| /* Wait for pending exclusive operations to complete. The exclusive lock |
| must be held. */ |
| static inline void exclusive_idle(void) |
| { |
| while (pending_cpus) { |
| pthread_cond_wait(&exclusive_resume, &exclusive_lock); |
| } |
| } |
| |
| /* Start an exclusive operation. |
| Must only be called from outside cpu_arm_exec. */ |
| static inline void start_exclusive(void) |
| { |
| CPUState *other; |
| pthread_mutex_lock(&exclusive_lock); |
| exclusive_idle(); |
| |
| pending_cpus = 1; |
| /* Make all other cpus stop executing. */ |
| for (other = first_cpu; other; other = other->next_cpu) { |
| if (other->running) { |
| pending_cpus++; |
| cpu_interrupt(other, CPU_INTERRUPT_EXIT); |
| } |
| } |
| if (pending_cpus > 1) { |
| pthread_cond_wait(&exclusive_cond, &exclusive_lock); |
| } |
| } |
| |
| /* Finish an exclusive operation. */ |
| static inline void end_exclusive(void) |
| { |
| pending_cpus = 0; |
| pthread_cond_broadcast(&exclusive_resume); |
| pthread_mutex_unlock(&exclusive_lock); |
| } |
| |
| /* Wait for exclusive ops to finish, and begin cpu execution. */ |
| static inline void cpu_exec_start(CPUState *env) |
| { |
| pthread_mutex_lock(&exclusive_lock); |
| exclusive_idle(); |
| env->running = 1; |
| pthread_mutex_unlock(&exclusive_lock); |
| } |
| |
| /* Mark cpu as not executing, and release pending exclusive ops. */ |
| static inline void cpu_exec_end(CPUState *env) |
| { |
| pthread_mutex_lock(&exclusive_lock); |
| env->running = 0; |
| if (pending_cpus > 1) { |
| pending_cpus--; |
| if (pending_cpus == 1) { |
| pthread_cond_signal(&exclusive_cond); |
| } |
| } |
| exclusive_idle(); |
| pthread_mutex_unlock(&exclusive_lock); |
| } |
| #else /* if !USE_NPTL */ |
| /* These are no-ops because we are not threadsafe. */ |
| static inline void cpu_exec_start(CPUState *env) |
| { |
| } |
| |
| static inline void cpu_exec_end(CPUState *env) |
| { |
| } |
| |
| static inline void start_exclusive(void) |
| { |
| } |
| |
| static inline void end_exclusive(void) |
| { |
| } |
| |
| void fork_start(void) |
| { |
| } |
| |
| void fork_end(int child) |
| { |
| if (child) { |
| gdbserver_fork(thread_env); |
| } |
| } |
| #endif |
| |
| |
| #ifdef TARGET_I386 |
| /***********************************************************/ |
| /* CPUX86 core interface */ |
| |
| void cpu_smm_update(CPUState *env) |
| { |
| } |
| |
| uint64_t cpu_get_tsc(CPUX86State *env) |
| { |
| return cpu_get_real_ticks(); |
| } |
| |
| static void write_dt(void *ptr, unsigned long addr, unsigned long limit, |
| int flags) |
| { |
| unsigned int e1, e2; |
| uint32_t *p; |
| e1 = (addr << 16) | (limit & 0xffff); |
| e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000); |
| e2 |= flags; |
| p = ptr; |
| p[0] = tswap32(e1); |
| p[1] = tswap32(e2); |
| } |
| |
| static uint64_t *idt_table; |
| #ifdef TARGET_X86_64 |
| static void set_gate64(void *ptr, unsigned int type, unsigned int dpl, |
| uint64_t addr, unsigned int sel) |
| { |
| uint32_t *p, e1, e2; |
| e1 = (addr & 0xffff) | (sel << 16); |
| e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); |
| p = ptr; |
| p[0] = tswap32(e1); |
| p[1] = tswap32(e2); |
| p[2] = tswap32(addr >> 32); |
| p[3] = 0; |
| } |
| /* only dpl matters as we do only user space emulation */ |
| static void set_idt(int n, unsigned int dpl) |
| { |
| set_gate64(idt_table + n * 2, 0, dpl, 0, 0); |
| } |
| #else |
| static void set_gate(void *ptr, unsigned int type, unsigned int dpl, |
| uint32_t addr, unsigned int sel) |
| { |
| uint32_t *p, e1, e2; |
| e1 = (addr & 0xffff) | (sel << 16); |
| e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); |
| p = ptr; |
| p[0] = tswap32(e1); |
| p[1] = tswap32(e2); |
| } |
| |
| /* only dpl matters as we do only user space emulation */ |
| static void set_idt(int n, unsigned int dpl) |
| { |
| set_gate(idt_table + n, 0, dpl, 0, 0); |
| } |
| #endif |
| |
| void cpu_loop(CPUX86State *env) |
| { |
| int trapnr; |
| abi_ulong pc; |
| target_siginfo_t info; |
| |
| for(;;) { |
| trapnr = cpu_x86_exec(env); |
| switch(trapnr) { |
| case 0x80: |
| /* linux syscall from int $0x80 */ |
| env->regs[R_EAX] = do_syscall(env, |
| env->regs[R_EAX], |
| env->regs[R_EBX], |
| env->regs[R_ECX], |
| env->regs[R_EDX], |
| env->regs[R_ESI], |
| env->regs[R_EDI], |
| env->regs[R_EBP]); |
| break; |
| #ifndef TARGET_ABI32 |
| case EXCP_SYSCALL: |
| /* linux syscall from syscall intruction */ |
| env->regs[R_EAX] = do_syscall(env, |
| env->regs[R_EAX], |
| env->regs[R_EDI], |
| env->regs[R_ESI], |
| env->regs[R_EDX], |
| env->regs[10], |
| env->regs[8], |
| env->regs[9]); |
| env->eip = env->exception_next_eip; |
| break; |
| #endif |
| case EXCP0B_NOSEG: |
| case EXCP0C_STACK: |
| info.si_signo = SIGBUS; |
| info.si_errno = 0; |
| info.si_code = TARGET_SI_KERNEL; |
| info._sifields._sigfault._addr = 0; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case EXCP0D_GPF: |
| /* XXX: potential problem if ABI32 */ |
| #ifndef TARGET_X86_64 |
| if (env->eflags & VM_MASK) { |
| handle_vm86_fault(env); |
| } else |
| #endif |
| { |
| info.si_signo = SIGSEGV; |
| info.si_errno = 0; |
| info.si_code = TARGET_SI_KERNEL; |
| info._sifields._sigfault._addr = 0; |
| queue_signal(env, info.si_signo, &info); |
| } |
| break; |
| case EXCP0E_PAGE: |
| info.si_signo = SIGSEGV; |
| info.si_errno = 0; |
| if (!(env->error_code & 1)) |
| info.si_code = TARGET_SEGV_MAPERR; |
| else |
| info.si_code = TARGET_SEGV_ACCERR; |
| info._sifields._sigfault._addr = env->cr[2]; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case EXCP00_DIVZ: |
| #ifndef TARGET_X86_64 |
| if (env->eflags & VM_MASK) { |
| handle_vm86_trap(env, trapnr); |
| } else |
| #endif |
| { |
| /* division by zero */ |
| info.si_signo = SIGFPE; |
| info.si_errno = 0; |
| info.si_code = TARGET_FPE_INTDIV; |
| info._sifields._sigfault._addr = env->eip; |
| queue_signal(env, info.si_signo, &info); |
| } |
| break; |
| case EXCP01_DB: |
| case EXCP03_INT3: |
| #ifndef TARGET_X86_64 |
| if (env->eflags & VM_MASK) { |
| handle_vm86_trap(env, trapnr); |
| } else |
| #endif |
| { |
| info.si_signo = SIGTRAP; |
| info.si_errno = 0; |
| if (trapnr == EXCP01_DB) { |
| info.si_code = TARGET_TRAP_BRKPT; |
| info._sifields._sigfault._addr = env->eip; |
| } else { |
| info.si_code = TARGET_SI_KERNEL; |
| info._sifields._sigfault._addr = 0; |
| } |
| queue_signal(env, info.si_signo, &info); |
| } |
| break; |
| case EXCP04_INTO: |
| case EXCP05_BOUND: |
| #ifndef TARGET_X86_64 |
| if (env->eflags & VM_MASK) { |
| handle_vm86_trap(env, trapnr); |
| } else |
| #endif |
| { |
| info.si_signo = SIGSEGV; |
| info.si_errno = 0; |
| info.si_code = TARGET_SI_KERNEL; |
| info._sifields._sigfault._addr = 0; |
| queue_signal(env, info.si_signo, &info); |
| } |
| break; |
| case EXCP06_ILLOP: |
| info.si_signo = SIGILL; |
| info.si_errno = 0; |
| info.si_code = TARGET_ILL_ILLOPN; |
| info._sifields._sigfault._addr = env->eip; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case EXCP_INTERRUPT: |
| /* just indicate that signals should be handled asap */ |
| break; |
| case EXCP_DEBUG: |
| { |
| int sig; |
| |
| sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| if (sig) |
| { |
| info.si_signo = sig; |
| info.si_errno = 0; |
| info.si_code = TARGET_TRAP_BRKPT; |
| queue_signal(env, info.si_signo, &info); |
| } |
| } |
| break; |
| default: |
| pc = env->segs[R_CS].base + env->eip; |
| fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n", |
| (long)pc, trapnr); |
| abort(); |
| } |
| process_pending_signals(env); |
| } |
| } |
| #endif |
| |
| #ifdef TARGET_ARM |
| |
| static void arm_cache_flush(abi_ulong start, abi_ulong last) |
| { |
| abi_ulong addr, last1; |
| |
| if (last < start) |
| return; |
| addr = start; |
| for(;;) { |
| last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1; |
| if (last1 > last) |
| last1 = last; |
| tb_invalidate_page_range(addr, last1 + 1); |
| if (last1 == last) |
| break; |
| addr = last1 + 1; |
| } |
| } |
| |
| /* Handle a jump to the kernel code page. */ |
| static int |
| do_kernel_trap(CPUARMState *env) |
| { |
| uint32_t addr; |
| uint32_t cpsr; |
| uint32_t val; |
| |
| switch (env->regs[15]) { |
| case 0xffff0fa0: /* __kernel_memory_barrier */ |
| /* ??? No-op. Will need to do better for SMP. */ |
| break; |
| case 0xffff0fc0: /* __kernel_cmpxchg */ |
| /* XXX: This only works between threads, not between processes. |
| It's probably possible to implement this with native host |
| operations. However things like ldrex/strex are much harder so |
| there's not much point trying. */ |
| start_exclusive(); |
| cpsr = cpsr_read(env); |
| addr = env->regs[2]; |
| /* FIXME: This should SEGV if the access fails. */ |
| if (get_user_u32(val, addr)) |
| val = ~env->regs[0]; |
| if (val == env->regs[0]) { |
| val = env->regs[1]; |
| /* FIXME: Check for segfaults. */ |
| put_user_u32(val, addr); |
| env->regs[0] = 0; |
| cpsr |= CPSR_C; |
| } else { |
| env->regs[0] = -1; |
| cpsr &= ~CPSR_C; |
| } |
| cpsr_write(env, cpsr, CPSR_C); |
| end_exclusive(); |
| break; |
| case 0xffff0fe0: /* __kernel_get_tls */ |
| env->regs[0] = env->cp15.c13_tls2; |
| break; |
| default: |
| return 1; |
| } |
| /* Jump back to the caller. */ |
| addr = env->regs[14]; |
| if (addr & 1) { |
| env->thumb = 1; |
| addr &= ~1; |
| } |
| env->regs[15] = addr; |
| |
| return 0; |
| } |
| |
| void cpu_loop(CPUARMState *env) |
| { |
| int trapnr; |
| unsigned int n, insn; |
| target_siginfo_t info; |
| uint32_t addr; |
| |
| for(;;) { |
| cpu_exec_start(env); |
| trapnr = cpu_arm_exec(env); |
| cpu_exec_end(env); |
| switch(trapnr) { |
| case EXCP_UDEF: |
| { |
| TaskState *ts = env->opaque; |
| uint32_t opcode; |
| int rc; |
| |
| /* we handle the FPU emulation here, as Linux */ |
| /* we get the opcode */ |
| /* FIXME - what to do if get_user() fails? */ |
| get_user_u32(opcode, env->regs[15]); |
| |
| rc = EmulateAll(opcode, &ts->fpa, env); |
| if (rc == 0) { /* illegal instruction */ |
| info.si_signo = SIGILL; |
| info.si_errno = 0; |
| info.si_code = TARGET_ILL_ILLOPN; |
| info._sifields._sigfault._addr = env->regs[15]; |
| queue_signal(env, info.si_signo, &info); |
| } else if (rc < 0) { /* FP exception */ |
| int arm_fpe=0; |
| |
| /* translate softfloat flags to FPSR flags */ |
| if (-rc & float_flag_invalid) |
| arm_fpe |= BIT_IOC; |
| if (-rc & float_flag_divbyzero) |
| arm_fpe |= BIT_DZC; |
| if (-rc & float_flag_overflow) |
| arm_fpe |= BIT_OFC; |
| if (-rc & float_flag_underflow) |
| arm_fpe |= BIT_UFC; |
| if (-rc & float_flag_inexact) |
| arm_fpe |= BIT_IXC; |
| |
| FPSR fpsr = ts->fpa.fpsr; |
| //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe); |
| |
| if (fpsr & (arm_fpe << 16)) { /* exception enabled? */ |
| info.si_signo = SIGFPE; |
| info.si_errno = 0; |
| |
| /* ordered by priority, least first */ |
| if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES; |
| if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND; |
| if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF; |
| if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV; |
| if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV; |
| |
| info._sifields._sigfault._addr = env->regs[15]; |
| queue_signal(env, info.si_signo, &info); |
| } else { |
| env->regs[15] += 4; |
| } |
| |
| /* accumulate unenabled exceptions */ |
| if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC)) |
| fpsr |= BIT_IXC; |
| if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC)) |
| fpsr |= BIT_UFC; |
| if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC)) |
| fpsr |= BIT_OFC; |
| if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC)) |
| fpsr |= BIT_DZC; |
| if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC)) |
| fpsr |= BIT_IOC; |
| ts->fpa.fpsr=fpsr; |
| } else { /* everything OK */ |
| /* increment PC */ |
| env->regs[15] += 4; |
| } |
| } |
| break; |
| case EXCP_SWI: |
| case EXCP_BKPT: |
| { |
| env->eabi = 1; |
| /* system call */ |
| if (trapnr == EXCP_BKPT) { |
| if (env->thumb) { |
| /* FIXME - what to do if get_user() fails? */ |
| get_user_u16(insn, env->regs[15]); |
| n = insn & 0xff; |
| env->regs[15] += 2; |
| } else { |
| /* FIXME - what to do if get_user() fails? */ |
| get_user_u32(insn, env->regs[15]); |
| n = (insn & 0xf) | ((insn >> 4) & 0xff0); |
| env->regs[15] += 4; |
| } |
| } else { |
| if (env->thumb) { |
| /* FIXME - what to do if get_user() fails? */ |
| get_user_u16(insn, env->regs[15] - 2); |
| n = insn & 0xff; |
| } else { |
| /* FIXME - what to do if get_user() fails? */ |
| get_user_u32(insn, env->regs[15] - 4); |
| n = insn & 0xffffff; |
| } |
| } |
| |
| if (n == ARM_NR_cacheflush) { |
| arm_cache_flush(env->regs[0], env->regs[1]); |
| } else if (n == ARM_NR_semihosting |
| || n == ARM_NR_thumb_semihosting) { |
| env->regs[0] = do_arm_semihosting (env); |
| } else if (n == 0 || n >= ARM_SYSCALL_BASE |
| || (env->thumb && n == ARM_THUMB_SYSCALL)) { |
| /* linux syscall */ |
| if (env->thumb || n == 0) { |
| n = env->regs[7]; |
| } else { |
| n -= ARM_SYSCALL_BASE; |
| env->eabi = 0; |
| } |
| if ( n > ARM_NR_BASE) { |
| switch (n) { |
| case ARM_NR_cacheflush: |
| arm_cache_flush(env->regs[0], env->regs[1]); |
| break; |
| case ARM_NR_set_tls: |
| cpu_set_tls(env, env->regs[0]); |
| env->regs[0] = 0; |
| break; |
| default: |
| gemu_log("qemu: Unsupported ARM syscall: 0x%x\n", |
| n); |
| env->regs[0] = -TARGET_ENOSYS; |
| break; |
| } |
| } else { |
| env->regs[0] = do_syscall(env, |
| n, |
| env->regs[0], |
| env->regs[1], |
| env->regs[2], |
| env->regs[3], |
| env->regs[4], |
| env->regs[5]); |
| } |
| } else { |
| goto error; |
| } |
| } |
| break; |
| case EXCP_INTERRUPT: |
| /* just indicate that signals should be handled asap */ |
| break; |
| case EXCP_PREFETCH_ABORT: |
| addr = env->cp15.c6_insn; |
| goto do_segv; |
| case EXCP_DATA_ABORT: |
| addr = env->cp15.c6_data; |
| goto do_segv; |
| do_segv: |
| { |
| info.si_signo = SIGSEGV; |
| info.si_errno = 0; |
| /* XXX: check env->error_code */ |
| info.si_code = TARGET_SEGV_MAPERR; |
| info._sifields._sigfault._addr = addr; |
| queue_signal(env, info.si_signo, &info); |
| } |
| break; |
| case EXCP_DEBUG: |
| { |
| int sig; |
| |
| sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| if (sig) |
| { |
| info.si_signo = sig; |
| info.si_errno = 0; |
| info.si_code = TARGET_TRAP_BRKPT; |
| queue_signal(env, info.si_signo, &info); |
| } |
| } |
| break; |
| case EXCP_KERNEL_TRAP: |
| if (do_kernel_trap(env)) |
| goto error; |
| break; |
| default: |
| error: |
| fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", |
| trapnr); |
| cpu_dump_state(env, stderr, fprintf, 0); |
| abort(); |
| } |
| process_pending_signals(env); |
| } |
| } |
| |
| #endif |
| |
| #ifdef TARGET_SPARC |
| #define SPARC64_STACK_BIAS 2047 |
| |
| //#define DEBUG_WIN |
| |
| /* WARNING: dealing with register windows _is_ complicated. More info |
| can be found at http://www.sics.se/~psm/sparcstack.html */ |
| static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) |
| { |
| index = (index + cwp * 16) % (16 * env->nwindows); |
| /* wrap handling : if cwp is on the last window, then we use the |
| registers 'after' the end */ |
| if (index < 8 && env->cwp == env->nwindows - 1) |
| index += 16 * env->nwindows; |
| return index; |
| } |
| |
| /* save the register window 'cwp1' */ |
| static inline void save_window_offset(CPUSPARCState *env, int cwp1) |
| { |
| unsigned int i; |
| abi_ulong sp_ptr; |
| |
| sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; |
| #ifdef TARGET_SPARC64 |
| if (sp_ptr & 3) |
| sp_ptr += SPARC64_STACK_BIAS; |
| #endif |
| #if defined(DEBUG_WIN) |
| printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n", |
| sp_ptr, cwp1); |
| #endif |
| for(i = 0; i < 16; i++) { |
| /* FIXME - what to do if put_user() fails? */ |
| put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr); |
| sp_ptr += sizeof(abi_ulong); |
| } |
| } |
| |
| static void save_window(CPUSPARCState *env) |
| { |
| #ifndef TARGET_SPARC64 |
| unsigned int new_wim; |
| new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) & |
| ((1LL << env->nwindows) - 1); |
| save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2)); |
| env->wim = new_wim; |
| #else |
| save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2)); |
| env->cansave++; |
| env->canrestore--; |
| #endif |
| } |
| |
| static void restore_window(CPUSPARCState *env) |
| { |
| #ifndef TARGET_SPARC64 |
| unsigned int new_wim; |
| #endif |
| unsigned int i, cwp1; |
| abi_ulong sp_ptr; |
| |
| #ifndef TARGET_SPARC64 |
| new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) & |
| ((1LL << env->nwindows) - 1); |
| #endif |
| |
| /* restore the invalid window */ |
| cwp1 = cpu_cwp_inc(env, env->cwp + 1); |
| sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; |
| #ifdef TARGET_SPARC64 |
| if (sp_ptr & 3) |
| sp_ptr += SPARC64_STACK_BIAS; |
| #endif |
| #if defined(DEBUG_WIN) |
| printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n", |
| sp_ptr, cwp1); |
| #endif |
| for(i = 0; i < 16; i++) { |
| /* FIXME - what to do if get_user() fails? */ |
| get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr); |
| sp_ptr += sizeof(abi_ulong); |
| } |
| #ifdef TARGET_SPARC64 |
| env->canrestore++; |
| if (env->cleanwin < env->nwindows - 1) |
| env->cleanwin++; |
| env->cansave--; |
| #else |
| env->wim = new_wim; |
| #endif |
| } |
| |
| static void flush_windows(CPUSPARCState *env) |
| { |
| int offset, cwp1; |
| |
| offset = 1; |
| for(;;) { |
| /* if restore would invoke restore_window(), then we can stop */ |
| cwp1 = cpu_cwp_inc(env, env->cwp + offset); |
| #ifndef TARGET_SPARC64 |
| if (env->wim & (1 << cwp1)) |
| break; |
| #else |
| if (env->canrestore == 0) |
| break; |
| env->cansave++; |
| env->canrestore--; |
| #endif |
| save_window_offset(env, cwp1); |
| offset++; |
| } |
| cwp1 = cpu_cwp_inc(env, env->cwp + 1); |
| #ifndef TARGET_SPARC64 |
| /* set wim so that restore will reload the registers */ |
| env->wim = 1 << cwp1; |
| #endif |
| #if defined(DEBUG_WIN) |
| printf("flush_windows: nb=%d\n", offset - 1); |
| #endif |
| } |
| |
| void cpu_loop (CPUSPARCState *env) |
| { |
| int trapnr, ret; |
| target_siginfo_t info; |
| |
| while (1) { |
| trapnr = cpu_sparc_exec (env); |
| |
| switch (trapnr) { |
| #ifndef TARGET_SPARC64 |
| case 0x88: |
| case 0x90: |
| #else |
| case 0x110: |
| case 0x16d: |
| #endif |
| ret = do_syscall (env, env->gregs[1], |
| env->regwptr[0], env->regwptr[1], |
| env->regwptr[2], env->regwptr[3], |
| env->regwptr[4], env->regwptr[5]); |
| if ((unsigned int)ret >= (unsigned int)(-515)) { |
| #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) |
| env->xcc |= PSR_CARRY; |
| #else |
| env->psr |= PSR_CARRY; |
| #endif |
| ret = -ret; |
| } else { |
| #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) |
| env->xcc &= ~PSR_CARRY; |
| #else |
| env->psr &= ~PSR_CARRY; |
| #endif |
| } |
| env->regwptr[0] = ret; |
| /* next instruction */ |
| env->pc = env->npc; |
| env->npc = env->npc + 4; |
| break; |
| case 0x83: /* flush windows */ |
| #ifdef TARGET_ABI32 |
| case 0x103: |
| #endif |
| flush_windows(env); |
| /* next instruction */ |
| env->pc = env->npc; |
| env->npc = env->npc + 4; |
| break; |
| #ifndef TARGET_SPARC64 |
| case TT_WIN_OVF: /* window overflow */ |
| save_window(env); |
| break; |
| case TT_WIN_UNF: /* window underflow */ |
| restore_window(env); |
| break; |
| case TT_TFAULT: |
| case TT_DFAULT: |
| { |
| info.si_signo = SIGSEGV; |
| info.si_errno = 0; |
| /* XXX: check env->error_code */ |
| info.si_code = TARGET_SEGV_MAPERR; |
| info._sifields._sigfault._addr = env->mmuregs[4]; |
| queue_signal(env, info.si_signo, &info); |
| } |
| break; |
| #else |
| case TT_SPILL: /* window overflow */ |
| save_window(env); |
| break; |
| case TT_FILL: /* window underflow */ |
| restore_window(env); |
| break; |
| case TT_TFAULT: |
| case TT_DFAULT: |
| { |
| info.si_signo = SIGSEGV; |
| info.si_errno = 0; |
| /* XXX: check env->error_code */ |
| info.si_code = TARGET_SEGV_MAPERR; |
| if (trapnr == TT_DFAULT) |
| info._sifields._sigfault._addr = env->dmmuregs[4]; |
| else |
| info._sifields._sigfault._addr = env->tsptr->tpc; |
| queue_signal(env, info.si_signo, &info); |
| } |
| break; |
| #ifndef TARGET_ABI32 |
| case 0x16e: |
| flush_windows(env); |
| sparc64_get_context(env); |
| break; |
| case 0x16f: |
| flush_windows(env); |
| sparc64_set_context(env); |
| break; |
| #endif |
| #endif |
| case EXCP_INTERRUPT: |
| /* just indicate that signals should be handled asap */ |
| break; |
| case EXCP_DEBUG: |
| { |
| int sig; |
| |
| sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| if (sig) |
| { |
| info.si_signo = sig; |
| info.si_errno = 0; |
| info.si_code = TARGET_TRAP_BRKPT; |
| queue_signal(env, info.si_signo, &info); |
| } |
| } |
| break; |
| default: |
| printf ("Unhandled trap: 0x%x\n", trapnr); |
| cpu_dump_state(env, stderr, fprintf, 0); |
| exit (1); |
| } |
| process_pending_signals (env); |
| } |
| } |
| |
| #endif |
| |
| #ifdef TARGET_PPC |
| static inline uint64_t cpu_ppc_get_tb (CPUState *env) |
| { |
| /* TO FIX */ |
| return 0; |
| } |
| |
| uint32_t cpu_ppc_load_tbl (CPUState *env) |
| { |
| return cpu_ppc_get_tb(env) & 0xFFFFFFFF; |
| } |
| |
| uint32_t cpu_ppc_load_tbu (CPUState *env) |
| { |
| return cpu_ppc_get_tb(env) >> 32; |
| } |
| |
| uint32_t cpu_ppc_load_atbl (CPUState *env) |
| { |
| return cpu_ppc_get_tb(env) & 0xFFFFFFFF; |
| } |
| |
| uint32_t cpu_ppc_load_atbu (CPUState *env) |
| { |
| return cpu_ppc_get_tb(env) >> 32; |
| } |
| |
| uint32_t cpu_ppc601_load_rtcu (CPUState *env) |
| __attribute__ (( alias ("cpu_ppc_load_tbu") )); |
| |
| uint32_t cpu_ppc601_load_rtcl (CPUState *env) |
| { |
| return cpu_ppc_load_tbl(env) & 0x3FFFFF80; |
| } |
| |
| /* XXX: to be fixed */ |
| int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp) |
| { |
| return -1; |
| } |
| |
| int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val) |
| { |
| return -1; |
| } |
| |
| #define EXCP_DUMP(env, fmt, args...) \ |
| do { \ |
| fprintf(stderr, fmt , ##args); \ |
| cpu_dump_state(env, stderr, fprintf, 0); \ |
| qemu_log(fmt, ##args); \ |
| log_cpu_state(env, 0); \ |
| } while (0) |
| |
| void cpu_loop(CPUPPCState *env) |
| { |
| target_siginfo_t info; |
| int trapnr; |
| uint32_t ret; |
| |
| for(;;) { |
| trapnr = cpu_ppc_exec(env); |
| switch(trapnr) { |
| case POWERPC_EXCP_NONE: |
| /* Just go on */ |
| break; |
| case POWERPC_EXCP_CRITICAL: /* Critical input */ |
| cpu_abort(env, "Critical interrupt while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_MCHECK: /* Machine check exception */ |
| cpu_abort(env, "Machine check exception while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_DSI: /* Data storage exception */ |
| EXCP_DUMP(env, "Invalid data memory access: 0x" ADDRX "\n", |
| env->spr[SPR_DAR]); |
| /* XXX: check this. Seems bugged */ |
| switch (env->error_code & 0xFF000000) { |
| case 0x40000000: |
| info.si_signo = TARGET_SIGSEGV; |
| info.si_errno = 0; |
| info.si_code = TARGET_SEGV_MAPERR; |
| break; |
| case 0x04000000: |
| info.si_signo = TARGET_SIGILL; |
| info.si_errno = 0; |
| info.si_code = TARGET_ILL_ILLADR; |
| break; |
| case 0x08000000: |
| info.si_signo = TARGET_SIGSEGV; |
| info.si_errno = 0; |
| info.si_code = TARGET_SEGV_ACCERR; |
| break; |
| default: |
| /* Let's send a regular segfault... */ |
| EXCP_DUMP(env, "Invalid segfault errno (%02x)\n", |
| env->error_code); |
| info.si_signo = TARGET_SIGSEGV; |
| info.si_errno = 0; |
| info.si_code = TARGET_SEGV_MAPERR; |
| break; |
| } |
| info._sifields._sigfault._addr = env->nip; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case POWERPC_EXCP_ISI: /* Instruction storage exception */ |
| EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" ADDRX "\n", |
| env->spr[SPR_SRR0]); |
| /* XXX: check this */ |
| switch (env->error_code & 0xFF000000) { |
| case 0x40000000: |
| info.si_signo = TARGET_SIGSEGV; |
| info.si_errno = 0; |
| info.si_code = TARGET_SEGV_MAPERR; |
| break; |
| case 0x10000000: |
| case 0x08000000: |
| info.si_signo = TARGET_SIGSEGV; |
| info.si_errno = 0; |
| info.si_code = TARGET_SEGV_ACCERR; |
| break; |
| default: |
| /* Let's send a regular segfault... */ |
| EXCP_DUMP(env, "Invalid segfault errno (%02x)\n", |
| env->error_code); |
| info.si_signo = TARGET_SIGSEGV; |
| info.si_errno = 0; |
| info.si_code = TARGET_SEGV_MAPERR; |
| break; |
| } |
| info._sifields._sigfault._addr = env->nip - 4; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case POWERPC_EXCP_EXTERNAL: /* External input */ |
| cpu_abort(env, "External interrupt while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_ALIGN: /* Alignment exception */ |
| EXCP_DUMP(env, "Unaligned memory access\n"); |
| /* XXX: check this */ |
| info.si_signo = TARGET_SIGBUS; |
| info.si_errno = 0; |
| info.si_code = TARGET_BUS_ADRALN; |
| info._sifields._sigfault._addr = env->nip - 4; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case POWERPC_EXCP_PROGRAM: /* Program exception */ |
| /* XXX: check this */ |
| switch (env->error_code & ~0xF) { |
| case POWERPC_EXCP_FP: |
| EXCP_DUMP(env, "Floating point program exception\n"); |
| info.si_signo = TARGET_SIGFPE; |
| info.si_errno = 0; |
| switch (env->error_code & 0xF) { |
| case POWERPC_EXCP_FP_OX: |
| info.si_code = TARGET_FPE_FLTOVF; |
| break; |
| case POWERPC_EXCP_FP_UX: |
| info.si_code = TARGET_FPE_FLTUND; |
| break; |
| case POWERPC_EXCP_FP_ZX: |
| case POWERPC_EXCP_FP_VXZDZ: |
| info.si_code = TARGET_FPE_FLTDIV; |
| break; |
| case POWERPC_EXCP_FP_XX: |
| info.si_code = TARGET_FPE_FLTRES; |
| break; |
| case POWERPC_EXCP_FP_VXSOFT: |
| info.si_code = TARGET_FPE_FLTINV; |
| break; |
| case POWERPC_EXCP_FP_VXSNAN: |
| case POWERPC_EXCP_FP_VXISI: |
| case POWERPC_EXCP_FP_VXIDI: |
| case POWERPC_EXCP_FP_VXIMZ: |
| case POWERPC_EXCP_FP_VXVC: |
| case POWERPC_EXCP_FP_VXSQRT: |
| case POWERPC_EXCP_FP_VXCVI: |
| info.si_code = TARGET_FPE_FLTSUB; |
| break; |
| default: |
| EXCP_DUMP(env, "Unknown floating point exception (%02x)\n", |
| env->error_code); |
| break; |
| } |
| break; |
| case POWERPC_EXCP_INVAL: |
| EXCP_DUMP(env, "Invalid instruction\n"); |
| info.si_signo = TARGET_SIGILL; |
| info.si_errno = 0; |
| switch (env->error_code & 0xF) { |
| case POWERPC_EXCP_INVAL_INVAL: |
| info.si_code = TARGET_ILL_ILLOPC; |
| break; |
| case POWERPC_EXCP_INVAL_LSWX: |
| info.si_code = TARGET_ILL_ILLOPN; |
| break; |
| case POWERPC_EXCP_INVAL_SPR: |
| info.si_code = TARGET_ILL_PRVREG; |
| break; |
| case POWERPC_EXCP_INVAL_FP: |
| info.si_code = TARGET_ILL_COPROC; |
| break; |
| default: |
| EXCP_DUMP(env, "Unknown invalid operation (%02x)\n", |
| env->error_code & 0xF); |
| info.si_code = TARGET_ILL_ILLADR; |
| break; |
| } |
| break; |
| case POWERPC_EXCP_PRIV: |
| EXCP_DUMP(env, "Privilege violation\n"); |
| info.si_signo = TARGET_SIGILL; |
| info.si_errno = 0; |
| switch (env->error_code & 0xF) { |
| case POWERPC_EXCP_PRIV_OPC: |
| info.si_code = TARGET_ILL_PRVOPC; |
| break; |
| case POWERPC_EXCP_PRIV_REG: |
| info.si_code = TARGET_ILL_PRVREG; |
| break; |
| default: |
| EXCP_DUMP(env, "Unknown privilege violation (%02x)\n", |
| env->error_code & 0xF); |
| info.si_code = TARGET_ILL_PRVOPC; |
| break; |
| } |
| break; |
| case POWERPC_EXCP_TRAP: |
| cpu_abort(env, "Tried to call a TRAP\n"); |
| break; |
| default: |
| /* Should not happen ! */ |
| cpu_abort(env, "Unknown program exception (%02x)\n", |
| env->error_code); |
| break; |
| } |
| info._sifields._sigfault._addr = env->nip - 4; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */ |
| EXCP_DUMP(env, "No floating point allowed\n"); |
| info.si_signo = TARGET_SIGILL; |
| info.si_errno = 0; |
| info.si_code = TARGET_ILL_COPROC; |
| info._sifields._sigfault._addr = env->nip - 4; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case POWERPC_EXCP_SYSCALL: /* System call exception */ |
| cpu_abort(env, "Syscall exception while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */ |
| EXCP_DUMP(env, "No APU instruction allowed\n"); |
| info.si_signo = TARGET_SIGILL; |
| info.si_errno = 0; |
| info.si_code = TARGET_ILL_COPROC; |
| info._sifields._sigfault._addr = env->nip - 4; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case POWERPC_EXCP_DECR: /* Decrementer exception */ |
| cpu_abort(env, "Decrementer interrupt while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */ |
| cpu_abort(env, "Fix interval timer interrupt while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */ |
| cpu_abort(env, "Watchdog timer interrupt while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_DTLB: /* Data TLB error */ |
| cpu_abort(env, "Data TLB exception while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_ITLB: /* Instruction TLB error */ |
| cpu_abort(env, "Instruction TLB exception while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */ |
| EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n"); |
| info.si_signo = TARGET_SIGILL; |
| info.si_errno = 0; |
| info.si_code = TARGET_ILL_COPROC; |
| info._sifields._sigfault._addr = env->nip - 4; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */ |
| cpu_abort(env, "Embedded floating-point data IRQ not handled\n"); |
| break; |
| case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */ |
| cpu_abort(env, "Embedded floating-point round IRQ not handled\n"); |
| break; |
| case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */ |
| cpu_abort(env, "Performance monitor exception not handled\n"); |
| break; |
| case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */ |
| cpu_abort(env, "Doorbell interrupt while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */ |
| cpu_abort(env, "Doorbell critical interrupt while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_RESET: /* System reset exception */ |
| cpu_abort(env, "Reset interrupt while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_DSEG: /* Data segment exception */ |
| cpu_abort(env, "Data segment exception while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_ISEG: /* Instruction segment exception */ |
| cpu_abort(env, "Instruction segment exception " |
| "while in user mode. Aborting\n"); |
| break; |
| /* PowerPC 64 with hypervisor mode support */ |
| case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */ |
| cpu_abort(env, "Hypervisor decrementer interrupt " |
| "while in user mode. Aborting\n"); |
| break; |
| case POWERPC_EXCP_TRACE: /* Trace exception */ |
| /* Nothing to do: |
| * we use this exception to emulate step-by-step execution mode. |
| */ |
| break; |
| /* PowerPC 64 with hypervisor mode support */ |
| case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */ |
| cpu_abort(env, "Hypervisor data storage exception " |
| "while in user mode. Aborting\n"); |
| break; |
| case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */ |
| cpu_abort(env, "Hypervisor instruction storage exception " |
| "while in user mode. Aborting\n"); |
| break; |
| case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */ |
| cpu_abort(env, "Hypervisor data segment exception " |
| "while in user mode. Aborting\n"); |
| break; |
| case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */ |
| cpu_abort(env, "Hypervisor instruction segment exception " |
| "while in user mode. Aborting\n"); |
| break; |
| case POWERPC_EXCP_VPU: /* Vector unavailable exception */ |
| EXCP_DUMP(env, "No Altivec instructions allowed\n"); |
| info.si_signo = TARGET_SIGILL; |
| info.si_errno = 0; |
| info.si_code = TARGET_ILL_COPROC; |
| info._sifields._sigfault._addr = env->nip - 4; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */ |
| cpu_abort(env, "Programable interval timer interrupt " |
| "while in user mode. Aborting\n"); |
| break; |
| case POWERPC_EXCP_IO: /* IO error exception */ |
| cpu_abort(env, "IO error exception while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_RUNM: /* Run mode exception */ |
| cpu_abort(env, "Run mode exception while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_EMUL: /* Emulation trap exception */ |
| cpu_abort(env, "Emulation trap exception not handled\n"); |
| break; |
| case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */ |
| cpu_abort(env, "Instruction fetch TLB exception " |
| "while in user-mode. Aborting"); |
| break; |
| case POWERPC_EXCP_DLTLB: /* Data load TLB miss */ |
| cpu_abort(env, "Data load TLB exception while in user-mode. " |
| "Aborting"); |
| break; |
| case POWERPC_EXCP_DSTLB: /* Data store TLB miss */ |
| cpu_abort(env, "Data store TLB exception while in user-mode. " |
| "Aborting"); |
| break; |
| case POWERPC_EXCP_FPA: /* Floating-point assist exception */ |
| cpu_abort(env, "Floating-point assist exception not handled\n"); |
| break; |
| case POWERPC_EXCP_IABR: /* Instruction address breakpoint */ |
| cpu_abort(env, "Instruction address breakpoint exception " |
| "not handled\n"); |
| break; |
| case POWERPC_EXCP_SMI: /* System management interrupt */ |
| cpu_abort(env, "System management interrupt while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_THERM: /* Thermal interrupt */ |
| cpu_abort(env, "Thermal interrupt interrupt while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */ |
| cpu_abort(env, "Performance monitor exception not handled\n"); |
| break; |
| case POWERPC_EXCP_VPUA: /* Vector assist exception */ |
| cpu_abort(env, "Vector assist exception not handled\n"); |
| break; |
| case POWERPC_EXCP_SOFTP: /* Soft patch exception */ |
| cpu_abort(env, "Soft patch exception not handled\n"); |
| break; |
| case POWERPC_EXCP_MAINT: /* Maintenance exception */ |
| cpu_abort(env, "Maintenance exception while in user mode. " |
| "Aborting\n"); |
| break; |
| case POWERPC_EXCP_STOP: /* stop translation */ |
| /* We did invalidate the instruction cache. Go on */ |
| break; |
| case POWERPC_EXCP_BRANCH: /* branch instruction: */ |
| /* We just stopped because of a branch. Go on */ |
| break; |
| case POWERPC_EXCP_SYSCALL_USER: |
| /* system call in user-mode emulation */ |
| /* WARNING: |
| * PPC ABI uses overflow flag in cr0 to signal an error |
| * in syscalls. |
| */ |
| #if 0 |
| printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0], |
| env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]); |
| #endif |
| env->crf[0] &= ~0x1; |
| ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], |
| env->gpr[5], env->gpr[6], env->gpr[7], |
| env->gpr[8]); |
| if (ret > (uint32_t)(-515)) { |
| env->crf[0] |= 0x1; |
| ret = -ret; |
| } |
| env->gpr[3] = ret; |
| #if 0 |
| printf("syscall returned 0x%08x (%d)\n", ret, ret); |
| #endif |
| break; |
| case EXCP_DEBUG: |
| { |
| int sig; |
| |
| sig = gdb_handlesig(env, TARGET_SIGTRAP); |
| if (sig) { |
| info.si_signo = sig; |
| info.si_errno = 0; |
| info.si_code = TARGET_TRAP_BRKPT; |
| queue_signal(env, info.si_signo, &info); |
| } |
| } |
| break; |
| case EXCP_INTERRUPT: |
| /* just indicate that signals should be handled asap */ |
| break; |
| default: |
| cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr); |
| break; |
| } |
| process_pending_signals(env); |
| } |
| } |
| #endif |
| |
| #ifdef TARGET_MIPS |
| |
| #define MIPS_SYS(name, args) args, |
| |
| static const uint8_t mips_syscall_args[] = { |
| MIPS_SYS(sys_syscall , 0) /* 4000 */ |
| MIPS_SYS(sys_exit , 1) |
| MIPS_SYS(sys_fork , 0) |
| MIPS_SYS(sys_read , 3) |
| MIPS_SYS(sys_write , 3) |
| MIPS_SYS(sys_open , 3) /* 4005 */ |
| MIPS_SYS(sys_close , 1) |
| MIPS_SYS(sys_waitpid , 3) |
| MIPS_SYS(sys_creat , 2) |
| MIPS_SYS(sys_link , 2) |
| MIPS_SYS(sys_unlink , 1) /* 4010 */ |
| MIPS_SYS(sys_execve , 0) |
| MIPS_SYS(sys_chdir , 1) |
| MIPS_SYS(sys_time , 1) |
| MIPS_SYS(sys_mknod , 3) |
| MIPS_SYS(sys_chmod , 2) /* 4015 */ |
| MIPS_SYS(sys_lchown , 3) |
| MIPS_SYS(sys_ni_syscall , 0) |
| MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */ |
| MIPS_SYS(sys_lseek , 3) |
| MIPS_SYS(sys_getpid , 0) /* 4020 */ |
| MIPS_SYS(sys_mount , 5) |
| MIPS_SYS(sys_oldumount , 1) |
| MIPS_SYS(sys_setuid , 1) |
| MIPS_SYS(sys_getuid , 0) |
| MIPS_SYS(sys_stime , 1) /* 4025 */ |
| MIPS_SYS(sys_ptrace , 4) |
| MIPS_SYS(sys_alarm , 1) |
| MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */ |
| MIPS_SYS(sys_pause , 0) |
| MIPS_SYS(sys_utime , 2) /* 4030 */ |
| MIPS_SYS(sys_ni_syscall , 0) |
| MIPS_SYS(sys_ni_syscall , 0) |
| MIPS_SYS(sys_access , 2) |
| MIPS_SYS(sys_nice , 1) |
| MIPS_SYS(sys_ni_syscall , 0) /* 4035 */ |
| MIPS_SYS(sys_sync , 0) |
| MIPS_SYS(sys_kill , 2) |
| MIPS_SYS(sys_rename , 2) |
| MIPS_SYS(sys_mkdir , 2) |
| MIPS_SYS(sys_rmdir , 1) /* 4040 */ |
| MIPS_SYS(sys_dup , 1) |
| MIPS_SYS(sys_pipe , 0) |
| MIPS_SYS(sys_times , 1) |
| MIPS_SYS(sys_ni_syscall , 0) |
| MIPS_SYS(sys_brk , 1) /* 4045 */ |
| MIPS_SYS(sys_setgid , 1) |
| MIPS_SYS(sys_getgid , 0) |
| MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */ |
| MIPS_SYS(sys_geteuid , 0) |
| MIPS_SYS(sys_getegid , 0) /* 4050 */ |
| MIPS_SYS(sys_acct , 0) |
| MIPS_SYS(sys_umount , 2) |
| MIPS_SYS(sys_ni_syscall , 0) |
| MIPS_SYS(sys_ioctl , 3) |
| MIPS_SYS(sys_fcntl , 3) /* 4055 */ |
| MIPS_SYS(sys_ni_syscall , 2) |
| MIPS_SYS(sys_setpgid , 2) |
| MIPS_SYS(sys_ni_syscall , 0) |
| MIPS_SYS(sys_olduname , 1) |
| MIPS_SYS(sys_umask , 1) /* 4060 */ |
| MIPS_SYS(sys_chroot , 1) |
| MIPS_SYS(sys_ustat , 2) |
| MIPS_SYS(sys_dup2 , 2) |
| MIPS_SYS(sys_getppid , 0) |
| MIPS_SYS(sys_getpgrp , 0) /* 4065 */ |
| MIPS_SYS(sys_setsid , 0) |
| MIPS_SYS(sys_sigaction , 3) |
| MIPS_SYS(sys_sgetmask , 0) |
| MIPS_SYS(sys_ssetmask , 1) |
| MIPS_SYS(sys_setreuid , 2) /* 4070 */ |
| MIPS_SYS(sys_setregid , 2) |
| MIPS_SYS(sys_sigsuspend , 0) |
| MIPS_SYS(sys_sigpending , 1) |
| MIPS_SYS(sys_sethostname , 2) |
| MIPS_SYS(sys_setrlimit , 2) /* 4075 */ |
| MIPS_SYS(sys_getrlimit , 2) |
| MIPS_SYS(sys_getrusage , 2) |
| MIPS_SYS(sys_gettimeofday, 2) |
| MIPS_SYS(sys_settimeofday, 2) |
| MIPS_SYS(sys_getgroups , 2) /* 4080 */ |
| MIPS_SYS(sys_setgroups , 2) |
| MIPS_SYS(sys_ni_syscall , 0) /* old_select */ |
| MIPS_SYS(sys_symlink , 2) |
| MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */ |
| MIPS_SYS(sys_readlink , 3) /* 4085 */ |
| MIPS_SYS(sys_uselib , 1) |
| MIPS_SYS(sys_swapon , 2) |
| MIPS_SYS(sys_reboot , 3) |
| MIPS_SYS(old_readdir , 3) |
| MIPS_SYS(old_mmap , 6) /* 4090 */ |
| MIPS_SYS(sys_munmap , 2) |
| MIPS_SYS(sys_truncate , 2) |
| MIPS_SYS(sys_ftruncate , 2) |
| MIPS_SYS(sys_fchmod , 2) |
| MIPS_SYS(sys_fchown , 3) /* 4095 */ |
| MIPS_SYS(sys_getpriority , 2) |
| MIPS_SYS(sys_setpriority , 3) |
| MIPS_SYS(sys_ni_syscall , 0) |
| MIPS_SYS(sys_statfs , 2) |
| MIPS_SYS(sys_fstatfs , 2) /* 4100 */ |
| MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */ |
| MIPS_SYS(sys_socketcall , 2) |
| MIPS_SYS(sys_syslog , 3) |
| MIPS_SYS(sys_setitimer , 3) |
| MIPS_SYS(sys_getitimer , 2) /* 4105 */ |
| MIPS_SYS(sys_newstat , 2) |
| MIPS_SYS(sys_newlstat , 2) |
| MIPS_SYS(sys_newfstat , 2) |
| MIPS_SYS(sys_uname , 1) |
| MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */ |
| MIPS_SYS(sys_vhangup , 0) |
| MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */ |
| MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */ |
| MIPS_SYS(sys_wait4 , 4) |
| MIPS_SYS(sys_swapoff , 1) /* 4115 */ |
| MIPS_SYS(sys_sysinfo , 1) |
| MIPS_SYS(sys_ipc , 6) |
| MIPS_SYS(sys_fsync , 1) |
| MIPS_SYS(sys_sigreturn , 0) |
| MIPS_SYS(sys_clone , 0) /* 4120 */ |
| MIPS_SYS(sys_setdomainname, 2) |
| MIPS_SYS(sys_newuname , 1) |
| MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */ |
| MIPS_SYS(sys_adjtimex , 1) |
| MIPS_SYS(sys_mprotect , 3) /* 4125 */ |
| MIPS_SYS(sys_sigprocmask , 3) |
| MIPS_SYS(sys_ni_syscall , 0) /* was create_module */ |
| MIPS_SYS(sys_init_module , 5) |
| MIPS_SYS(sys_delete_module, 1) |
| MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */ |
| MIPS_SYS(sys_quotactl , 0) |
| MIPS_SYS(sys_getpgid , 1) |
| MIPS_SYS(sys_fchdir , 1) |
| MIPS_SYS(sys_bdflush , 2) |
| MIPS_SYS(sys_sysfs , 3) /* 4135 */ |
| MIPS_SYS(sys_personality , 1) |
| MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */ |
| MIPS_SYS(sys_setfsuid , 1) |
| MIPS_SYS(sys_setfsgid , 1) |
| MIPS_SYS(sys_llseek , 5) /* 4140 */ |
| MIPS_SYS(sys_getdents , 3) |
| MIPS_SYS(sys_select , 5) |
| MIPS_SYS(sys_flock , 2) |
| MIPS_SYS(sys_msync , 3) |
| MIPS_SYS(sys_readv , 3) /* 4145 */ |
| MIPS_SYS(sys_writev , 3) |
| MIPS_SYS(sys_cacheflush , 3) |
| MIPS_SYS(sys_cachectl , 3) |
| MIPS_SYS(sys_sysmips , 4) |
| MIPS_SYS(sys_ni_syscall , 0) /* 4150 */ |
| MIPS_SYS(sys_getsid , 1) |
| MIPS_SYS(sys_fdatasync , 0) |
| MIPS_SYS(sys_sysctl , 1) |
| MIPS_SYS(sys_mlock , 2) |
| MIPS_SYS(sys_munlock , 2) /* 4155 */ |
| MIPS_SYS(sys_mlockall , 1) |
| MIPS_SYS(sys_munlockall , 0) |
| MIPS_SYS(sys_sched_setparam, 2) |
| MIPS_SYS(sys_sched_getparam, 2) |
| MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */ |
| MIPS_SYS(sys_sched_getscheduler, 1) |
| MIPS_SYS(sys_sched_yield , 0) |
| MIPS_SYS(sys_sched_get_priority_max, 1) |
| MIPS_SYS(sys_sched_get_priority_min, 1) |
| MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */ |
| MIPS_SYS(sys_nanosleep, 2) |
| MIPS_SYS(sys_mremap , 4) |
| MIPS_SYS(sys_accept , 3) |
| MIPS_SYS(sys_bind , 3) |
| MIPS_SYS(sys_connect , 3) /* 4170 */ |
| MIPS_SYS(sys_getpeername , 3) |
| MIPS_SYS(sys_getsockname , 3) |
| MIPS_SYS(sys_getsockopt , 5) |
| MIPS_SYS(sys_listen , 2) |
| MIPS_SYS(sys_recv , 4) /* 4175 */ |
| MIPS_SYS(sys_recvfrom , 6) |
| MIPS_SYS(sys_recvmsg , 3) |
| MIPS_SYS(sys_send , 4) |
| MIPS_SYS(sys_sendmsg , 3) |
| MIPS_SYS(sys_sendto , 6) /* 4180 */ |
| MIPS_SYS(sys_setsockopt , 5) |
| MIPS_SYS(sys_shutdown , 2) |
| MIPS_SYS(sys_socket , 3) |
| MIPS_SYS(sys_socketpair , 4) |
| MIPS_SYS(sys_setresuid , 3) /* 4185 */ |
| MIPS_SYS(sys_getresuid , 3) |
| MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */ |
| MIPS_SYS(sys_poll , 3) |
| MIPS_SYS(sys_nfsservctl , 3) |
| MIPS_SYS(sys_setresgid , 3) /* 4190 */ |
| MIPS_SYS(sys_getresgid , 3) |
| MIPS_SYS(sys_prctl , 5) |
| MIPS_SYS(sys_rt_sigreturn, 0) |
| MIPS_SYS(sys_rt_sigaction, 4) |
| MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */ |
| MIPS_SYS(sys_rt_sigpending, 2) |
| MIPS_SYS(sys_rt_sigtimedwait, 4) |
| MIPS_SYS(sys_rt_sigqueueinfo, 3) |
| MIPS_SYS(sys_rt_sigsuspend, 0) |
| MIPS_SYS(sys_pread64 , 6) /* 4200 */ |
| MIPS_SYS(sys_pwrite64 , 6) |
| MIPS_SYS(sys_chown , 3) |
| MIPS_SYS(sys_getcwd , 2) |
| MIPS_SYS(sys_capget , 2) |
| MIPS_SYS(sys_capset , 2) /* 4205 */ |
| MIPS_SYS(sys_sigaltstack , 0) |
| MIPS_SYS(sys_sendfile , 4) |
| MIPS_SYS(sys_ni_syscall , 0) |
| MIPS_SYS(sys_ni_syscall , 0) |
| MIPS_SYS(sys_mmap2 , 6) /* 4210 */ |
| MIPS_SYS(sys_truncate64 , 4) |
| MIPS_SYS(sys_ftruncate64 , 4) |
| MIPS_SYS(sys_stat64 , 2) |
| MIPS_SYS(sys_lstat64 , 2) |
| MIPS_SYS(sys_fstat64 , 2) /* 4215 */ |
| MIPS_SYS(sys_pivot_root , 2) |
| MIPS_SYS(sys_mincore , 3) |
| MIPS_SYS(sys_madvise , 3) |
| MIPS_SYS(sys_getdents64 , 3) |
| MIPS_SYS(sys_fcntl64 , 3) /* 4220 */ |
| MIPS_SYS(sys_ni_syscall , 0) |
| MIPS_SYS(sys_gettid , 0) |
| MIPS_SYS(sys_readahead , 5) |
| MIPS_SYS(sys_setxattr , 5) |
| MIPS_SYS(sys_lsetxattr , 5) /* 4225 */ |
| MIPS_SYS(sys_fsetxattr , 5) |
| MIPS_SYS(sys_getxattr , 4) |
| MIPS_SYS(sys_lgetxattr , 4) |
| MIPS_SYS(sys_fgetxattr , 4) |
| MIPS_SYS(sys_listxattr , 3) /* 4230 */ |
| MIPS_SYS(sys_llistxattr , 3) |
| MIPS_SYS(sys_flistxattr , 3) |
| MIPS_SYS(sys_removexattr , 2) |
| MIPS_SYS(sys_lremovexattr, 2) |
| MIPS_SYS(sys_fremovexattr, 2) /* 4235 */ |
| MIPS_SYS(sys_tkill , 2) |
| MIPS_SYS(sys_sendfile64 , 5) |
| MIPS_SYS(sys_futex , 2) |
| MIPS_SYS(sys_sched_setaffinity, 3) |
| MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */ |
| MIPS_SYS(sys_io_setup , 2) |
| MIPS_SYS(sys_io_destroy , 1) |
| MIPS_SYS(sys_io_getevents, 5) |
| MIPS_SYS(sys_io_submit , 3) |
| MIPS_SYS(sys_io_cancel , 3) /* 4245 */ |
| MIPS_SYS(sys_exit_group , 1) |
| MIPS_SYS(sys_lookup_dcookie, 3) |
| MIPS_SYS(sys_epoll_create, 1) |
| MIPS_SYS(sys_epoll_ctl , 4) |
| MIPS_SYS(sys_epoll_wait , 3) /* 4250 */ |
| MIPS_SYS(sys_remap_file_pages, 5) |
| MIPS_SYS(sys_set_tid_address, 1) |
| MIPS_SYS(sys_restart_syscall, 0) |
| MIPS_SYS(sys_fadvise64_64, 7) |
| MIPS_SYS(sys_statfs64 , 3) /* 4255 */ |
| MIPS_SYS(sys_fstatfs64 , 2) |
| MIPS_SYS(sys_timer_create, 3) |
| MIPS_SYS(sys_timer_settime, 4) |
| MIPS_SYS(sys_timer_gettime, 2) |
| MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */ |
| MIPS_SYS(sys_timer_delete, 1) |
| MIPS_SYS(sys_clock_settime, 2) |
| MIPS_SYS(sys_clock_gettime, 2) |
| MIPS_SYS(sys_clock_getres, 2) |
| MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */ |
| MIPS_SYS(sys_tgkill , 3) |
| MIPS_SYS(sys_utimes , 2) |
| MIPS_SYS(sys_mbind , 4) |
| MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */ |
| MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */ |
| MIPS_SYS(sys_mq_open , 4) |
| MIPS_SYS(sys_mq_unlink , 1) |
| MIPS_SYS(sys_mq_timedsend, 5) |
| MIPS_SYS(sys_mq_timedreceive, 5) |
| MIPS_SYS(sys_mq_notify , 2) /* 4275 */ |
| MIPS_SYS(sys_mq_getsetattr, 3) |
| MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */ |
| MIPS_SYS(sys_waitid , 4) |
| MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */ |
| MIPS_SYS(sys_add_key , 5) |
| MIPS_SYS(sys_request_key, 4) |
| MIPS_SYS(sys_keyctl , 5) |
| MIPS_SYS(sys_set_thread_area, 1) |
| MIPS_SYS(sys_inotify_init, 0) |
| MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */ |
| MIPS_SYS(sys_inotify_rm_watch, 2) |
| MIPS_SYS(sys_migrate_pages, 4) |
| MIPS_SYS(sys_openat, 4) |
| MIPS_SYS(sys_mkdirat, 3) |
| MIPS_SYS(sys_mknodat, 4) /* 4290 */ |
| MIPS_SYS(sys_fchownat, 5) |
| MIPS_SYS(sys_futimesat, 3) |
| MIPS_SYS(sys_fstatat64, 4) |
| MIPS_SYS(sys_unlinkat, 3) |
| MIPS_SYS(sys_renameat, 4) /* 4295 */ |
| MIPS_SYS(sys_linkat, 5) |
| MIPS_SYS(sys_symlinkat, 3) |
| MIPS_SYS(sys_readlinkat, 4) |
| MIPS_SYS(sys_fchmodat, 3) |
| MIPS_SYS(sys_faccessat, 3) /* 4300 */ |
| MIPS_SYS(sys_pselect6, 6) |
| MIPS_SYS(sys_ppoll, 5) |
| MIPS_SYS(sys_unshare, 1) |
| MIPS_SYS(sys_splice, 4) |
| MIPS_SYS(sys_sync_file_range, 7) /* 4305 */ |
| MIPS_SYS(sys_tee, 4) |
| MIPS_SYS(sys_vmsplice, 4) |
| MIPS_SYS(sys_move_pages, 6) |
| MIPS_SYS(sys_set_robust_list, 2) |
| MIPS_SYS(sys_get_robust_list, 3) /* 4310 */ |
| MIPS_SYS(sys_kexec_load, 4) |
| MIPS_SYS(sys_getcpu, 3) |
| MIPS_SYS(sys_epoll_pwait, 6) |
| MIPS_SYS(sys_ioprio_set, 3) |
| MIPS_SYS(sys_ioprio_get, 2) |
| }; |
| |
| #undef MIPS_SYS |
| |
| void cpu_loop(CPUMIPSState *env) |
| { |
| target_siginfo_t info; |
| int trapnr, ret; |
| unsigned int syscall_num; |
| |
| for(;;) { |
| trapnr = cpu_mips_exec(env); |
| switch(trapnr) { |
| case EXCP_SYSCALL: |
| syscall_num = env->active_tc.gpr[2] - 4000; |
| env->active_tc.PC += 4; |
| if (syscall_num >= sizeof(mips_syscall_args)) { |
| ret = -ENOSYS; |
| } else { |
| int nb_args; |
| abi_ulong sp_reg; |
| abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0; |
| |
| nb_args = mips_syscall_args[syscall_num]; |
| sp_reg = env->active_tc.gpr[29]; |
| switch (nb_args) { |
| /* these arguments are taken from the stack */ |
| /* FIXME - what to do if get_user() fails? */ |
| case 8: get_user_ual(arg8, sp_reg + 28); |
| case 7: get_user_ual(arg7, sp_reg + 24); |
| case 6: get_user_ual(arg6, sp_reg + 20); |
| case 5: get_user_ual(arg5, sp_reg + 16); |
| default: |
| break; |
| } |
| ret = do_syscall(env, env->active_tc.gpr[2], |
| env->active_tc.gpr[4], |
| env->active_tc.gpr[5], |
| env->active_tc.gpr[6], |
| env->active_tc.gpr[7], |
| arg5, arg6/*, arg7, arg8*/); |
| } |
| if ((unsigned int)ret >= (unsigned int)(-1133)) { |
| env->active_tc.gpr[7] = 1; /* error flag */ |
| ret = -ret; |
| } else { |
| env->active_tc.gpr[7] = 0; /* error flag */ |
| } |
| env->active_tc.gpr[2] = ret; |
| break; |
| case EXCP_TLBL: |
| case EXCP_TLBS: |
| case EXCP_CpU: |
| case EXCP_RI: |
| info.si_signo = TARGET_SIGILL; |
| info.si_errno = 0; |
| info.si_code = 0; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case EXCP_INTERRUPT: |
| /* just indicate that signals should be handled asap */ |
| break; |
| case EXCP_DEBUG: |
| { |
| int sig; |
| |
| sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| if (sig) |
| { |
| info.si_signo = sig; |
| info.si_errno = 0; |
| info.si_code = TARGET_TRAP_BRKPT; |
| queue_signal(env, info.si_signo, &info); |
| } |
| } |
| break; |
| default: |
| // error: |
| fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", |
| trapnr); |
| cpu_dump_state(env, stderr, fprintf, 0); |
| abort(); |
| } |
| process_pending_signals(env); |
| } |
| } |
| #endif |
| |
| #ifdef TARGET_SH4 |
| void cpu_loop (CPUState *env) |
| { |
| int trapnr, ret; |
| target_siginfo_t info; |
| |
| while (1) { |
| trapnr = cpu_sh4_exec (env); |
| |
| switch (trapnr) { |
| case 0x160: |
| env->pc += 2; |
| ret = do_syscall(env, |
| env->gregs[3], |
| env->gregs[4], |
| env->gregs[5], |
| env->gregs[6], |
| env->gregs[7], |
| env->gregs[0], |
| env->gregs[1]); |
| env->gregs[0] = ret; |
| break; |
| case EXCP_INTERRUPT: |
| /* just indicate that signals should be handled asap */ |
| break; |
| case EXCP_DEBUG: |
| { |
| int sig; |
| |
| sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| if (sig) |
| { |
| info.si_signo = sig; |
| info.si_errno = 0; |
| info.si_code = TARGET_TRAP_BRKPT; |
| queue_signal(env, info.si_signo, &info); |
| } |
| } |
| break; |
| case 0xa0: |
| case 0xc0: |
| info.si_signo = SIGSEGV; |
| info.si_errno = 0; |
| info.si_code = TARGET_SEGV_MAPERR; |
| info._sifields._sigfault._addr = env->tea; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| |
| default: |
| printf ("Unhandled trap: 0x%x\n", trapnr); |
| cpu_dump_state(env, stderr, fprintf, 0); |
| exit (1); |
| } |
| process_pending_signals (env); |
| } |
| } |
| #endif |
| |
| #ifdef TARGET_CRIS |
| void cpu_loop (CPUState *env) |
| { |
| int trapnr, ret; |
| target_siginfo_t info; |
| |
| while (1) { |
| trapnr = cpu_cris_exec (env); |
| switch (trapnr) { |
| case 0xaa: |
| { |
| info.si_signo = SIGSEGV; |
| info.si_errno = 0; |
| /* XXX: check env->error_code */ |
| info.si_code = TARGET_SEGV_MAPERR; |
| info._sifields._sigfault._addr = env->pregs[PR_EDA]; |
| queue_signal(env, info.si_signo, &info); |
| } |
| break; |
| case EXCP_INTERRUPT: |
| /* just indicate that signals should be handled asap */ |
| break; |
| case EXCP_BREAK: |
| ret = do_syscall(env, |
| env->regs[9], |
| env->regs[10], |
| env->regs[11], |
| env->regs[12], |
| env->regs[13], |
| env->pregs[7], |
| env->pregs[11]); |
| env->regs[10] = ret; |
| break; |
| case EXCP_DEBUG: |
| { |
| int sig; |
| |
| sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| if (sig) |
| { |
| info.si_signo = sig; |
| info.si_errno = 0; |
| info.si_code = TARGET_TRAP_BRKPT; |
| queue_signal(env, info.si_signo, &info); |
| } |
| } |
| break; |
| default: |
| printf ("Unhandled trap: 0x%x\n", trapnr); |
| cpu_dump_state(env, stderr, fprintf, 0); |
| exit (1); |
| } |
| process_pending_signals (env); |
| } |
| } |
| #endif |
| |
| #ifdef TARGET_M68K |
| |
| void cpu_loop(CPUM68KState *env) |
| { |
| int trapnr; |
| unsigned int n; |
| target_siginfo_t info; |
| TaskState *ts = env->opaque; |
| |
| for(;;) { |
| trapnr = cpu_m68k_exec(env); |
| switch(trapnr) { |
| case EXCP_ILLEGAL: |
| { |
| if (ts->sim_syscalls) { |
| uint16_t nr; |
| nr = lduw(env->pc + 2); |
| env->pc += 4; |
| do_m68k_simcall(env, nr); |
| } else { |
| goto do_sigill; |
| } |
| } |
| break; |
| case EXCP_HALT_INSN: |
| /* Semihosing syscall. */ |
| env->pc += 4; |
| do_m68k_semihosting(env, env->dregs[0]); |
| break; |
| case EXCP_LINEA: |
| case EXCP_LINEF: |
| case EXCP_UNSUPPORTED: |
| do_sigill: |
| info.si_signo = SIGILL; |
| info.si_errno = 0; |
| info.si_code = TARGET_ILL_ILLOPN; |
| info._sifields._sigfault._addr = env->pc; |
| queue_signal(env, info.si_signo, &info); |
| break; |
| case EXCP_TRAP0: |
| { |
| ts->sim_syscalls = 0; |
| n = env->dregs[0]; |
| env->pc += 2; |
| env->dregs[0] = do_syscall(env, |
| n, |
| env->dregs[1], |
| env->dregs[2], |
| env->dregs[3], |
| env->dregs[4], |
| env->dregs[5], |
| env->aregs[0]); |
| } |
| break; |
| case EXCP_INTERRUPT: |
| /* just indicate that signals should be handled asap */ |
| break; |
| case EXCP_ACCESS: |
| { |
| info.si_signo = SIGSEGV; |
| info.si_errno = 0; |
| /* XXX: check env->error_code */ |
| info.si_code = TARGET_SEGV_MAPERR; |
| info._sifields._sigfault._addr = env->mmu.ar; |
| queue_signal(env, info.si_signo, &info); |
| } |
| break; |
| case EXCP_DEBUG: |
| { |
| int sig; |
| |
| sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| if (sig) |
| { |
| info.si_signo = sig; |
| info.si_errno = 0; |
| info.si_code = TARGET_TRAP_BRKPT; |
| queue_signal(env, info.si_signo, &info); |
| } |
| } |
| break; |
| default: |
| fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", |
| trapnr); |
| cpu_dump_state(env, stderr, fprintf, 0); |
| abort(); |
| } |
| process_pending_signals(env); |
| } |
| } |
| #endif /* TARGET_M68K */ |
| |
| #ifdef TARGET_ALPHA |
| void cpu_loop (CPUState *env) |
| { |
| int trapnr; |
| target_siginfo_t info; |
| |
| while (1) { |
| trapnr = cpu_alpha_exec (env); |
| |
| switch (trapnr) { |
| case EXCP_RESET: |
| fprintf(stderr, "Reset requested. Exit\n"); |
| exit(1); |
| break; |
| case EXCP_MCHK: |
| fprintf(stderr, "Machine check exception. Exit\n"); |
| exit(1); |
| break; |
| case EXCP_ARITH: |
| fprintf(stderr, "Arithmetic trap.\n"); |
| exit(1); |
| break; |
| case EXCP_HW_INTERRUPT: |
| fprintf(stderr, "External interrupt. Exit\n"); |
| exit(1); |
| break; |
| case EXCP_DFAULT: |
| fprintf(stderr, "MMU data fault\n"); |
| exit(1); |
| break; |
| case EXCP_DTB_MISS_PAL: |
| fprintf(stderr, "MMU data TLB miss in PALcode\n"); |
| exit(1); |
| break; |
| case EXCP_ITB_MISS: |
| fprintf(stderr, "MMU instruction TLB miss\n"); |
| exit(1); |
| break; |
| case EXCP_ITB_ACV: |
| fprintf(stderr, "MMU instruction access violation\n"); |
| exit(1); |
| break; |
| case EXCP_DTB_MISS_NATIVE: |
| fprintf(stderr, "MMU data TLB miss\n"); |
| exit(1); |
| break; |
| case EXCP_UNALIGN: |
| fprintf(stderr, "Unaligned access\n"); |
| exit(1); |
| break; |
| case EXCP_OPCDEC: |
| fprintf(stderr, "Invalid instruction\n"); |
| exit(1); |
| break; |
| case EXCP_FEN: |
| fprintf(stderr, "Floating-point not allowed\n"); |
| exit(1); |
| break; |
| case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1): |
| call_pal(env, (trapnr >> 6) | 0x80); |
| break; |
| case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1): |
| fprintf(stderr, "Privileged call to PALcode\n"); |
| exit(1); |
| break; |
| case EXCP_DEBUG: |
| { |
| int sig; |
| |
| sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| if (sig) |
| { |
| info.si_signo = sig; |
| info.si_errno = 0; |
| info.si_code = TARGET_TRAP_BRKPT; |
| queue_signal(env, info.si_signo, &info); |
| } |
| } |
| break; |
| default: |
| printf ("Unhandled trap: 0x%x\n", trapnr); |
| cpu_dump_state(env, stderr, fprintf, 0); |
| exit (1); |
| } |
| process_pending_signals (env); |
| } |
| } |
| #endif /* TARGET_ALPHA */ |
| |
| static void usage(void) |
| { |
| printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n" |
| "usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n" |
| "Linux CPU emulator (compiled for %s emulation)\n" |
| "\n" |
| "Standard options:\n" |
| "-h print this help\n" |
| "-g port wait gdb connection to port\n" |
| "-L path set the elf interpreter prefix (default=%s)\n" |
| "-s size set the stack size in bytes (default=%ld)\n" |
| "-cpu model select CPU (-cpu ? for list)\n" |
| "-drop-ld-preload drop LD_PRELOAD for target process\n" |
| "\n" |
| "Debug options:\n" |
| "-d options activate log (logfile=%s)\n" |
| "-p pagesize set the host page size to 'pagesize'\n" |
| "-strace log system calls\n" |
| "\n" |
| "Environment variables:\n" |
| "QEMU_STRACE Print system calls and arguments similar to the\n" |
| " 'strace' program. Enable by setting to any value.\n" |
| , |
| TARGET_ARCH, |
| interp_prefix, |
| x86_stack_size, |
| DEBUG_LOGFILE); |
| _exit(1); |
| } |
| |
| THREAD CPUState *thread_env; |
| |
| /* Assumes contents are already zeroed. */ |
| void init_task_state(TaskState *ts) |
| { |
| int i; |
| |
| ts->used = 1; |
| ts->first_free = ts->sigqueue_table; |
| for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) { |
| ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1]; |
| } |
| ts->sigqueue_table[i].next = NULL; |
| } |
| |
| int main(int argc, char **argv, char **envp) |
| { |
| const char *filename; |
| const char *cpu_model; |
| struct target_pt_regs regs1, *regs = ®s1; |
| struct image_info info1, *info = &info1; |
| TaskState ts1, *ts = &ts1; |
| CPUState *env; |
| int optind; |
| const char *r; |
| int gdbstub_port = 0; |
| int drop_ld_preload = 0, environ_count = 0; |
| char **target_environ, **wrk, **dst; |
| |
| if (argc <= 1) |
| usage(); |
| |
| qemu_cache_utils_init(envp); |
| |
| /* init debug */ |
| cpu_set_log_filename(DEBUG_LOGFILE); |
| |
| cpu_model = NULL; |
| optind = 1; |
| for(;;) { |
| if (optind >= argc) |
| break; |
| r = argv[optind]; |
| if (r[0] != '-') |
| break; |
| optind++; |
| r++; |
| if (!strcmp(r, "-")) { |
| break; |
| } else if (!strcmp(r, "d")) { |
| int mask; |
| const CPULogItem *item; |
| |
| if (optind >= argc) |
| break; |
| |
| r = argv[optind++]; |
| mask = cpu_str_to_log_mask(r); |
| if (!mask) { |
| printf("Log items (comma separated):\n"); |
| for(item = cpu_log_items; item->mask != 0; item++) { |
| printf("%-10s %s\n", item->name, item->help); |
| } |
| exit(1); |
| } |
| cpu_set_log(mask); |
| } else if (!strcmp(r, "s")) { |
| r = argv[optind++]; |
| x86_stack_size = strtol(r, (char **)&r, 0); |
| if (x86_stack_size <= 0) |
| usage(); |
| if (*r == 'M') |
| x86_stack_size *= 1024 * 1024; |
| else if (*r == 'k' || *r == 'K') |
| x86_stack_size *= 1024; |
| } else if (!strcmp(r, "L")) { |
| interp_prefix = argv[optind++]; |
| } else if (!strcmp(r, "p")) { |
| qemu_host_page_size = atoi(argv[optind++]); |
| if (qemu_host_page_size == 0 || |
| (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { |
| fprintf(stderr, "page size must be a power of two\n"); |
| exit(1); |
| } |
| } else if (!strcmp(r, "g")) { |
| gdbstub_port = atoi(argv[optind++]); |
| } else if (!strcmp(r, "r")) { |
| qemu_uname_release = argv[optind++]; |
| } else if (!strcmp(r, "cpu")) { |
| cpu_model = argv[optind++]; |
| if (strcmp(cpu_model, "?") == 0) { |
| /* XXX: implement xxx_cpu_list for targets that still miss it */ |
| #if defined(cpu_list) |
| cpu_list(stdout, &fprintf); |
| #endif |
| _exit(1); |
| } |
| } else if (!strcmp(r, "drop-ld-preload")) { |
| drop_ld_preload = 1; |
| } else if (!strcmp(r, "strace")) { |
| do_strace = 1; |
| } else |
| { |
| usage(); |
| } |
| } |
| if (optind >= argc) |
| usage(); |
| filename = argv[optind]; |
| |
| /* Zero out regs */ |
| memset(regs, 0, sizeof(struct target_pt_regs)); |
| |
| /* Zero out image_info */ |
| memset(info, 0, sizeof(struct image_info)); |
| |
| /* Scan interp_prefix dir for replacement files. */ |
| init_paths(interp_prefix); |
| |
| if (cpu_model == NULL) { |
| #if defined(TARGET_I386) |
| #ifdef TARGET_X86_64 |
| cpu_model = "qemu64"; |
| #else |
| cpu_model = "qemu32"; |
| #endif |
| #elif defined(TARGET_ARM) |
| cpu_model = "arm926"; |
| #elif defined(TARGET_M68K) |
| cpu_model = "any"; |
| #elif defined(TARGET_SPARC) |
| #ifdef TARGET_SPARC64 |
| cpu_model = "TI UltraSparc II"; |
| #else |
| cpu_model = "Fujitsu MB86904"; |
| #endif |
| #elif defined(TARGET_MIPS) |
| #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64) |
| cpu_model = "20Kc"; |
| #else |
| cpu_model = "24Kf"; |
| #endif |
| #elif defined(TARGET_PPC) |
| #ifdef TARGET_PPC64 |
| cpu_model = "970"; |
| #else |
| cpu_model = "750"; |
| #endif |
| #else |
| cpu_model = "any"; |
| #endif |
| } |
| cpu_exec_init_all(0); |
| /* NOTE: we need to init the CPU at this stage to get |
| qemu_host_page_size */ |
| env = cpu_init(cpu_model); |
| if (!env) { |
| fprintf(stderr, "Unable to find CPU definition\n"); |
| exit(1); |
| } |
| thread_env = env; |
| |
| if (getenv("QEMU_STRACE")) { |
| do_strace = 1; |
| } |
| |
| wrk = environ; |
| while (*(wrk++)) |
| environ_count++; |
| |
| target_environ = malloc((environ_count + 1) * sizeof(char *)); |
| if (!target_environ) |
| abort(); |
| for (wrk = environ, dst = target_environ; *wrk; wrk++) { |
| if (drop_ld_preload && !strncmp(*wrk, "LD_PRELOAD=", 11)) |
| continue; |
| *(dst++) = strdup(*wrk); |
| } |
| *dst = NULL; /* NULL terminate target_environ */ |
| |
| if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) { |
| printf("Error loading %s\n", filename); |
| _exit(1); |
| } |
| |
| for (wrk = target_environ; *wrk; wrk++) { |
| free(*wrk); |
| } |
| |
| free(target_environ); |
| |
| if (qemu_log_enabled()) { |
| log_page_dump(); |
| |
| qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk); |
| qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code); |
| qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n", |
| info->start_code); |
| qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n", |
| info->start_data); |
| qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data); |
| qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n", |
| info->start_stack); |
| qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk); |
| qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry); |
| } |
| |
| target_set_brk(info->brk); |
| syscall_init(); |
| signal_init(); |
| |
| /* build Task State */ |
| memset(ts, 0, sizeof(TaskState)); |
| init_task_state(ts); |
| ts->info = info; |
| env->opaque = ts; |
| |
| #if defined(TARGET_I386) |
| cpu_x86_set_cpl(env, 3); |
| |
| env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK; |
| env->hflags |= HF_PE_MASK; |
| if (env->cpuid_features & CPUID_SSE) { |
| env->cr[4] |= CR4_OSFXSR_MASK; |
| env->hflags |= HF_OSFXSR_MASK; |
| } |
| #ifndef TARGET_ABI32 |
| /* enable 64 bit mode if possible */ |
| if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) { |
| fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n"); |
| exit(1); |
| } |
| env->cr[4] |= CR4_PAE_MASK; |
| env->efer |= MSR_EFER_LMA | MSR_EFER_LME; |
| env->hflags |= HF_LMA_MASK; |
| #endif |
| |
| /* flags setup : we activate the IRQs by default as in user mode */ |
| env->eflags |= IF_MASK; |
| |
| /* linux register setup */ |
| #ifndef TARGET_ABI32 |
| env->regs[R_EAX] = regs->rax; |
| env->regs[R_EBX] = regs->rbx; |
| env->regs[R_ECX] = regs->rcx; |
| env->regs[R_EDX] = regs->rdx; |
| env->regs[R_ESI] = regs->rsi; |
| env->regs[R_EDI] = regs->rdi; |
| env->regs[R_EBP] = regs->rbp; |
| env->regs[R_ESP] = regs->rsp; |
| env->eip = regs->rip; |
| #else |
| env->regs[R_EAX] = regs->eax; |
| env->regs[R_EBX] = regs->ebx; |
| env->regs[R_ECX] = regs->ecx; |
| env->regs[R_EDX] = regs->edx; |
| env->regs[R_ESI] = regs->esi; |
| env->regs[R_EDI] = regs->edi; |
| env->regs[R_EBP] = regs->ebp; |
| env->regs[R_ESP] = regs->esp; |
| env->eip = regs->eip; |
| #endif |
| |
| /* linux interrupt setup */ |
| #ifndef TARGET_ABI32 |
| env->idt.limit = 511; |
| #else |
| env->idt.limit = 255; |
| #endif |
| env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1), |
| PROT_READ|PROT_WRITE, |
| MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
| idt_table = g2h(env->idt.base); |
| set_idt(0, 0); |
| set_idt(1, 0); |
| set_idt(2, 0); |
| set_idt(3, 3); |
| set_idt(4, 3); |
| set_idt(5, 0); |
| set_idt(6, 0); |
| set_idt(7, 0); |
| set_idt(8, 0); |
| set_idt(9, 0); |
| set_idt(10, 0); |
| set_idt(11, 0); |
| set_idt(12, 0); |
| set_idt(13, 0); |
| set_idt(14, 0); |
| set_idt(15, 0); |
| set_idt(16, 0); |
| set_idt(17, 0); |
| set_idt(18, 0); |
| set_idt(19, 0); |
| set_idt(0x80, 3); |
| |
| /* linux segment setup */ |
| { |
| uint64_t *gdt_table; |
| env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES, |
| PROT_READ|PROT_WRITE, |
| MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
| env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1; |
| gdt_table = g2h(env->gdt.base); |
| #ifdef TARGET_ABI32 |
| write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
| DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
| #else |
| /* 64 bit code segment */ |
| write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
| DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| DESC_L_MASK | |
| (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
| #endif |
| write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, |
| DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); |
| } |
| cpu_x86_load_seg(env, R_CS, __USER_CS); |
| cpu_x86_load_seg(env, R_SS, __USER_DS); |
| #ifdef TARGET_ABI32 |
| cpu_x86_load_seg(env, R_DS, __USER_DS); |
| cpu_x86_load_seg(env, R_ES, __USER_DS); |
| cpu_x86_load_seg(env, R_FS, __USER_DS); |
| cpu_x86_load_seg(env, R_GS, __USER_DS); |
| /* This hack makes Wine work... */ |
| env->segs[R_FS].selector = 0; |
| #else |
| cpu_x86_load_seg(env, R_DS, 0); |
| cpu_x86_load_seg(env, R_ES, 0); |
| cpu_x86_load_seg(env, R_FS, 0); |
| cpu_x86_load_seg(env, R_GS, 0); |
| #endif |
| #elif defined(TARGET_ARM) |
| { |
| int i; |
| cpsr_write(env, regs->uregs[16], 0xffffffff); |
| for(i = 0; i < 16; i++) { |
| env->regs[i] = regs->uregs[i]; |
| } |
| } |
| #elif defined(TARGET_SPARC) |
| { |
| int i; |
| env->pc = regs->pc; |
| env->npc = regs->npc; |
| env->y = regs->y; |
| for(i = 0; i < 8; i++) |
| env->gregs[i] = regs->u_regs[i]; |
| for(i = 0; i < 8; i++) |
| env->regwptr[i] = regs->u_regs[i + 8]; |
| } |
| #elif defined(TARGET_PPC) |
| { |
| int i; |
| |
| #if defined(TARGET_PPC64) |
| #if defined(TARGET_ABI32) |
| env->msr &= ~((target_ulong)1 << MSR_SF); |
| #else |
| env->msr |= (target_ulong)1 << MSR_SF; |
| #endif |
| #endif |
| env->nip = regs->nip; |
| for(i = 0; i < 32; i++) { |
| env->gpr[i] = regs->gpr[i]; |
| } |
| } |
| #elif defined(TARGET_M68K) |
| { |
| env->pc = regs->pc; |
| env->dregs[0] = regs->d0; |
| env->dregs[1] = regs->d1; |
| env->dregs[2] = regs->d2; |
| env->dregs[3] = regs->d3; |
| env->dregs[4] = regs->d4; |
| env->dregs[5] = regs->d5; |
| env->dregs[6] = regs->d6; |
| env->dregs[7] = regs->d7; |
| env->aregs[0] = regs->a0; |
| env->aregs[1] = regs->a1; |
| env->aregs[2] = regs->a2; |
| env->aregs[3] = regs->a3; |
| env->aregs[4] = regs->a4; |
| env->aregs[5] = regs->a5; |
| env->aregs[6] = regs->a6; |
| env->aregs[7] = regs->usp; |
| env->sr = regs->sr; |
| ts->sim_syscalls = 1; |
| } |
| #elif defined(TARGET_MIPS) |
| { |
| int i; |
| |
| for(i = 0; i < 32; i++) { |
| env->active_tc.gpr[i] = regs->regs[i]; |
| } |
| env->active_tc.PC = regs->cp0_epc; |
| } |
| #elif defined(TARGET_SH4) |
| { |
| int i; |
| |
| for(i = 0; i < 16; i++) { |
| env->gregs[i] = regs->regs[i]; |
| } |
| env->pc = regs->pc; |
| } |
| #elif defined(TARGET_ALPHA) |
| { |
| int i; |
| |
| for(i = 0; i < 28; i++) { |
| env->ir[i] = ((abi_ulong *)regs)[i]; |
| } |
| env->ipr[IPR_USP] = regs->usp; |
| env->ir[30] = regs->usp; |
| env->pc = regs->pc; |
| env->unique = regs->unique; |
| } |
| #elif defined(TARGET_CRIS) |
| { |
| env->regs[0] = regs->r0; |
| env->regs[1] = regs->r1; |
| env->regs[2] = regs->r2; |
| env->regs[3] = regs->r3; |
| env->regs[4] = regs->r4; |
| env->regs[5] = regs->r5; |
| env->regs[6] = regs->r6; |
| env->regs[7] = regs->r7; |
| env->regs[8] = regs->r8; |
| env->regs[9] = regs->r9; |
| env->regs[10] = regs->r10; |
| env->regs[11] = regs->r11; |
| env->regs[12] = regs->r12; |
| env->regs[13] = regs->r13; |
| env->regs[14] = info->start_stack; |
| env->regs[15] = regs->acr; |
| env->pc = regs->erp; |
| } |
| #else |
| #error unsupported target CPU |
| #endif |
| |
| #if defined(TARGET_ARM) || defined(TARGET_M68K) |
| ts->stack_base = info->start_stack; |
| ts->heap_base = info->brk; |
| /* This will be filled in on the first SYS_HEAPINFO call. */ |
| ts->heap_limit = 0; |
| #endif |
| |
| if (gdbstub_port) { |
| gdbserver_start (gdbstub_port); |
| gdb_handlesig(env, 0); |
| } |
| cpu_loop(env); |
| /* never exits */ |
| return 0; |
| } |