/*
* i386 emulator main execution loop
- *
+ *
* Copyright (c) 2003-2005 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
/* exit the current TB from a signal handler. The host registers are
restored in a state compatible with the CPU emulator
*/
-void cpu_resume_from_signal(CPUState *env1, void *puc)
+void cpu_resume_from_signal(CPUState *env1, void *puc)
{
#if !defined(CONFIG_SOFTMMU)
struct ucontext *uc = puc;
unsigned int h;
target_ulong phys_pc, phys_page1, phys_page2, virt_page2;
uint8_t *tc_ptr;
-
+
spin_lock(&tb_lock);
tb_invalidated_flag = 0;
-
+
regs_to_env(); /* XXX: do it just before cpu_gen_code() */
-
+
/* find translated block using physical mappings */
phys_pc = get_phys_addr_code(env, pc);
phys_page1 = phys_pc & TARGET_PAGE_MASK;
tb = *ptb1;
if (!tb)
goto not_found;
- if (tb->pc == pc &&
+ if (tb->pc == pc &&
tb->page_addr[0] == phys_page1 &&
- tb->cs_base == cs_base &&
+ tb->cs_base == cs_base &&
tb->flags == flags) {
/* check next page if needed */
if (tb->page_addr[1] != -1) {
- virt_page2 = (pc & TARGET_PAGE_MASK) +
+ virt_page2 = (pc & TARGET_PAGE_MASK) +
TARGET_PAGE_SIZE;
phys_page2 = get_phys_addr_code(env, virt_page2);
if (tb->page_addr[1] == phys_page2)
tb->flags = flags;
cpu_gen_code(env, tb, CODE_GEN_MAX_SIZE, &code_gen_size);
code_gen_ptr = (void *)(((unsigned long)code_gen_ptr + code_gen_size + CODE_GEN_ALIGN - 1) & ~(CODE_GEN_ALIGN - 1));
-
+
/* check next page if needed */
virt_page2 = (pc + tb->size - 1) & TARGET_PAGE_MASK;
phys_page2 = -1;
phys_page2 = get_phys_addr_code(env, virt_page2);
}
tb_link_phys(tb, phys_pc, phys_page2);
-
+
found:
/* we add the TB in the virtual pc hash table */
env->tb_jmp_cache[tb_jmp_cache_hash_func(pc)] = tb;
if (cpu_halted(env1) == EXCP_HALTED)
return EXCP_HALTED;
- cpu_single_env = env1;
+ cpu_single_env = env1;
/* first we save global registers */
#define SAVE_HOST_REGS 1
which will be handled outside the cpu execution
loop */
#if defined(TARGET_I386)
- do_interrupt_user(env->exception_index,
- env->exception_is_int,
- env->error_code,
+ do_interrupt_user(env->exception_index,
+ env->exception_is_int,
+ env->error_code,
env->exception_next_eip);
#endif
ret = env->exception_index;
/* simulate a real cpu exception. On i386, it can
trigger new exceptions, but we do not handle
double or triple faults yet. */
- do_interrupt(env->exception_index,
- env->exception_is_int,
- env->error_code,
+ do_interrupt(env->exception_index,
+ env->exception_is_int,
+ env->error_code,
env->exception_next_eip, 0);
/* successfully delivered */
env->old_exception = -1;
#endif
}
env->exception_index = -1;
- }
+ }
#ifdef USE_KQEMU
if (kqemu_is_ok(env) && env->interrupt_request == 0) {
int ret;
T0 = 0; /* force lookup of first TB */
for(;;) {
#if defined(__sparc__) && !defined(HOST_SOLARIS)
- /* g1 can be modified by some libc? functions */
+ /* g1 can be modified by some libc? functions */
tmp_T0 = T0;
-#endif
+#endif
interrupt_request = env->interrupt_request;
if (__builtin_expect(interrupt_request, 0)) {
if (interrupt_request & CPU_INTERRUPT_DEBUG) {
T0 = 0;
#endif
} else if ((interrupt_request & CPU_INTERRUPT_HARD) &&
- (env->eflags & IF_MASK) &&
+ (env->eflags & IF_MASK) &&
!(env->hflags & HF_INHIBIT_IRQ_MASK)) {
int intno;
env->interrupt_request &= ~CPU_INTERRUPT_HARD;
#elif defined(TARGET_ALPHA)
cpu_dump_state(env, logfile, fprintf, 0);
#else
-#error unsupported target CPU
+#error unsupported target CPU
#endif
}
#endif
#endif
#if defined(__sparc__) && !defined(HOST_SOLARIS)
T0 = tmp_T0;
-#endif
+#endif
/* see if we can patch the calling TB. When the TB
spans two pages, we cannot safely do a direct
jump. */
#endif
tb->page_addr[1] == -1
#if defined(TARGET_I386) && defined(USE_CODE_COPY)
- && (tb->cflags & CF_CODE_COPY) ==
+ && (tb->cflags & CF_CODE_COPY) ==
(((TranslationBlock *)(T0 & ~3))->cflags & CF_CODE_COPY)
#endif
) {
tb_add_jump((TranslationBlock *)(long)(T0 & ~3), T0 & 3, tb);
#if defined(USE_CODE_COPY)
/* propagates the FP use info */
- ((TranslationBlock *)(T0 & ~3))->cflags |=
+ ((TranslationBlock *)(T0 & ~3))->cflags |=
(tb->cflags & CF_FP_USED);
#endif
spin_unlock(&tb_lock);
__asm__ __volatile__("call %0\n\t"
"mov %%o7,%%i0"
: /* no outputs */
- : "r" (gen_func)
+ : "r" (gen_func)
: "i0", "i1", "i2", "i3", "i4", "i5",
"o0", "o1", "o2", "o3", "o4", "o5",
"l0", "l1", "l2", "l3", "l4", "l5",
#include "hostregs_helper.h"
/* fail safe : never use cpu_single_env outside cpu_exec() */
- cpu_single_env = NULL;
+ cpu_single_env = NULL;
return ret;
}
env = s;
if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK)) {
selector &= 0xffff;
- cpu_x86_load_seg_cache(env, seg_reg, selector,
+ cpu_x86_load_seg_cache(env, seg_reg, selector,
(selector << 4), 0xffff, 0);
} else {
load_seg(seg_reg, selector);
saved_env = env;
env = s;
-
+
helper_fsave((target_ulong)ptr, data32);
env = saved_env;
saved_env = env;
env = s;
-
+
helper_frstor((target_ulong)ptr, data32);
env = saved_env;
write caused the exception and otherwise 0'. 'old_set' is the
signal set which should be restored */
static inline int handle_cpu_signal(unsigned long pc, unsigned long address,
- int is_write, sigset_t *old_set,
+ int is_write, sigset_t *old_set,
void *puc)
{
TranslationBlock *tb;
if (cpu_single_env)
env = cpu_single_env; /* XXX: find a correct solution for multithread */
#if defined(DEBUG_SIGNAL)
- qemu_printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
+ qemu_printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
pc, address, is_write, *(unsigned long *)old_set);
#endif
/* XXX: locking issue */
}
/* see if it is an MMU fault */
- ret = cpu_x86_handle_mmu_fault(env, address, is_write,
+ ret = cpu_x86_handle_mmu_fault(env, address, is_write,
((env->hflags & HF_CPL_MASK) == 3), 0);
if (ret < 0)
return 0; /* not an MMU fault */
}
if (ret == 1) {
#if 0
- printf("PF exception: EIP=0x%08x CR2=0x%08x error=0x%x\n",
+ printf("PF exception: EIP=0x%08x CR2=0x%08x error=0x%x\n",
env->eip, env->cr[2], env->error_code);
#endif
/* we restore the process signal mask as the sigreturn should
if (cpu_single_env)
env = cpu_single_env; /* XXX: find a correct solution for multithread */
#if defined(DEBUG_SIGNAL)
- printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
+ printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
pc, address, is_write, *(unsigned long *)old_set);
#endif
/* XXX: locking issue */
if (cpu_single_env)
env = cpu_single_env; /* XXX: find a correct solution for multithread */
#if defined(DEBUG_SIGNAL)
- printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
+ printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
pc, address, is_write, *(unsigned long *)old_set);
#endif
/* XXX: locking issue */
{
TranslationBlock *tb;
int ret;
-
+
if (cpu_single_env)
env = cpu_single_env; /* XXX: find a correct solution for multithread */
#if defined(DEBUG_SIGNAL)
- printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
+ printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
pc, address, is_write, *(unsigned long *)old_set);
#endif
/* XXX: locking issue */
}
if (ret == 1) {
#if 0
- printf("PF exception: NIP=0x%08x error=0x%x %p\n",
+ printf("PF exception: NIP=0x%08x error=0x%x %p\n",
env->nip, env->error_code, tb);
#endif
/* we restore the process signal mask as the sigreturn should
if (cpu_single_env)
env = cpu_single_env; /* XXX: find a correct solution for multithread */
#if defined(DEBUG_SIGNAL)
- printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
+ printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
pc, address, is_write, *(unsigned long *)old_set);
#endif
/* XXX: locking issue */
{
TranslationBlock *tb;
int ret;
-
+
if (cpu_single_env)
env = cpu_single_env; /* XXX: find a correct solution for multithread */
#if defined(DEBUG_SIGNAL)
- printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
+ printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
pc, address, is_write, *(unsigned long *)old_set);
#endif
/* XXX: locking issue */
}
if (ret == 1) {
#if 0
- printf("PF exception: PC=0x" TARGET_FMT_lx " error=0x%x %p\n",
+ printf("PF exception: PC=0x" TARGET_FMT_lx " error=0x%x %p\n",
env->PC, env->error_code, tb);
#endif
/* we restore the process signal mask as the sigreturn should
{
TranslationBlock *tb;
int ret;
-
+
if (cpu_single_env)
env = cpu_single_env; /* XXX: find a correct solution for multithread */
#if defined(DEBUG_SIGNAL)
- printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
+ printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
pc, address, is_write, *(unsigned long *)old_set);
#endif
/* XXX: locking issue */
cpu_restore_state(tb, env, pc, puc);
}
#if 0
- printf("PF exception: NIP=0x%08x error=0x%x %p\n",
+ printf("PF exception: NIP=0x%08x error=0x%x %p\n",
env->nip, env->error_code, tb);
#endif
/* we restore the process signal mask as the sigreturn should
{
TranslationBlock *tb;
int ret;
-
+
if (cpu_single_env)
env = cpu_single_env; /* XXX: find a correct solution for multithread */
#if defined(DEBUG_SIGNAL)
- printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
+ printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
pc, address, is_write, *(unsigned long *)old_set);
#endif
/* XXX: locking issue */
cpu_restore_state(tb, env, pc, puc);
}
#if 0
- printf("PF exception: NIP=0x%08x error=0x%x %p\n",
+ printf("PF exception: NIP=0x%08x error=0x%x %p\n",
env->nip, env->error_code, tb);
#endif
/* we restore the process signal mask as the sigreturn should
#endif
#if defined(USE_CODE_COPY)
-static void cpu_send_trap(unsigned long pc, int trap,
+static void cpu_send_trap(unsigned long pc, int trap,
struct ucontext *uc)
{
TranslationBlock *tb;
}
#endif
-int cpu_signal_handler(int host_signum, void *pinfo,
+int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
siginfo_t *info = pinfo;
return 1;
} else
#endif
- return handle_cpu_signal(pc, (unsigned long)info->si_addr,
- trapno == 0xe ?
+ return handle_cpu_signal(pc, (unsigned long)info->si_addr,
+ trapno == 0xe ?
(ERROR_sig(uc) >> 1) & 1 : 0,
&uc->uc_sigmask, puc);
}
unsigned long pc;
pc = uc->uc_mcontext.gregs[REG_RIP];
- return handle_cpu_signal(pc, (unsigned long)info->si_addr,
- uc->uc_mcontext.gregs[REG_TRAPNO] == 0xe ?
+ return handle_cpu_signal(pc, (unsigned long)info->si_addr,
+ uc->uc_mcontext.gregs[REG_TRAPNO] == 0xe ?
(uc->uc_mcontext.gregs[REG_ERR] >> 1) & 1 : 0,
&uc->uc_sigmask, puc);
}
# define TRAP_sig(context) EXCEPREG_sig(exception, context) /* number of powerpc exception taken */
#endif /* __APPLE__ */
-int cpu_signal_handler(int host_signum, void *pinfo,
+int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
siginfo_t *info = pinfo;
if (TRAP_sig(uc) != 0x400 && (DSISR_sig(uc) & 0x02000000))
is_write = 1;
#endif
- return handle_cpu_signal(pc, (unsigned long)info->si_addr,
+ return handle_cpu_signal(pc, (unsigned long)info->si_addr,
is_write, &uc->uc_sigmask, puc);
}
#elif defined(__alpha__)
-int cpu_signal_handler(int host_signum, void *pinfo,
+int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
siginfo_t *info = pinfo;
is_write = 1;
}
- return handle_cpu_signal(pc, (unsigned long)info->si_addr,
+ return handle_cpu_signal(pc, (unsigned long)info->si_addr,
is_write, &uc->uc_sigmask, puc);
}
#elif defined(__sparc__)
-int cpu_signal_handler(int host_signum, void *pinfo,
+int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
siginfo_t *info = pinfo;
unsigned long pc;
int is_write;
uint32_t insn;
-
+
/* XXX: is there a standard glibc define ? */
pc = regs[1];
/* XXX: need kernel patch to get write flag faster */
break;
}
}
- return handle_cpu_signal(pc, (unsigned long)info->si_addr,
+ return handle_cpu_signal(pc, (unsigned long)info->si_addr,
is_write, sigmask, NULL);
}
#elif defined(__arm__)
-int cpu_signal_handler(int host_signum, void *pinfo,
+int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
siginfo_t *info = pinfo;
struct ucontext *uc = puc;
unsigned long pc;
int is_write;
-
+
pc = uc->uc_mcontext.gregs[R15];
/* XXX: compute is_write */
is_write = 0;
- return handle_cpu_signal(pc, (unsigned long)info->si_addr,
+ return handle_cpu_signal(pc, (unsigned long)info->si_addr,
is_write,
&uc->uc_sigmask, puc);
}
#elif defined(__mc68000)
-int cpu_signal_handler(int host_signum, void *pinfo,
+int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
siginfo_t *info = pinfo;
struct ucontext *uc = puc;
unsigned long pc;
int is_write;
-
+
pc = uc->uc_mcontext.gregs[16];
/* XXX: compute is_write */
is_write = 0;
- return handle_cpu_signal(pc, (unsigned long)info->si_addr,
+ return handle_cpu_signal(pc, (unsigned long)info->si_addr,
is_write,
&uc->uc_sigmask, puc);
}
#elif defined(__s390__)
-int cpu_signal_handler(int host_signum, void *pinfo,
+int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
siginfo_t *info = pinfo;
struct ucontext *uc = puc;
unsigned long pc;
int is_write;
-
+
pc = uc->uc_mcontext.psw.addr;
/* XXX: compute is_write */
is_write = 0;
- return handle_cpu_signal(pc, (unsigned long)info->si_addr,
+ return handle_cpu_signal(pc, (unsigned long)info->si_addr,
is_write, &uc->uc_sigmask, puc);
}
#elif defined(__mips__)
-int cpu_signal_handler(int host_signum, void *pinfo,
+int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
siginfo_t *info = pinfo;
struct ucontext *uc = puc;
greg_t pc = uc->uc_mcontext.pc;
int is_write;
-
+
/* XXX: compute is_write */
is_write = 0;
- return handle_cpu_signal(pc, (unsigned long)info->si_addr,
+ return handle_cpu_signal(pc, (unsigned long)info->si_addr,
is_write, &uc->uc_sigmask, puc);
}
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