/*
- * emu main
+ * qemu user main
*
* Copyright (c) 2003 Fabrice Bellard
*
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
+#include <string.h>
#include <errno.h>
+#include <unistd.h>
-#include "gemu.h"
+#include "qemu.h"
-#include "i386/hsw_interp.h"
+#define DEBUG_LOGFILE "/tmp/qemu.log"
-unsigned long x86_stack_size;
-unsigned long stktop;
+#ifdef __APPLE__
+#include <crt_externs.h>
+# define environ (*_NSGetEnviron())
+#endif
+
+static const char *interp_prefix = CONFIG_QEMU_PREFIX;
+
+#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)
+long __preinit_array_start[0];
+long __preinit_array_end[0];
+long __init_array_start[0];
+long __init_array_end[0];
+long __fini_array_start[0];
+long __fini_array_end[0];
+#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_end(ap);
}
-/* virtual x86 CPU stuff */
+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;
+}
-extern int invoke_code16(Interp_ENV *, int, int);
-extern int invoke_code32(Interp_ENV *, int);
-extern char *e_print_cpuemu_regs(ENVPARAMS, int is32);
-extern char *e_emu_disasm(ENVPARAMS, unsigned char *org, int is32);
-extern void init_npu(void);
+int cpu_inw(CPUState *env, int addr)
+{
+ fprintf(stderr, "inw: port=0x%04x\n", addr);
+ return 0;
+}
-Interp_ENV env_global;
-Interp_ENV *envp_global;
+int cpu_inl(CPUState *env, int addr)
+{
+ fprintf(stderr, "inl: port=0x%04x\n", addr);
+ return 0;
+}
-QWORD EMUtime = 0;
+int cpu_get_pic_interrupt(CPUState *env)
+{
+ return -1;
+}
-int CEmuStat = 0;
+/* timers for rdtsc */
-long instr_count;
+#if defined(__i386__)
-/* who will initialize this? */
-unsigned long io_bitmap[IO_BITMAP_SIZE+1];
+int64_t cpu_get_real_ticks(void)
+{
+ int64_t val;
+ asm volatile ("rdtsc" : "=A" (val));
+ return val;
+}
-/* debug flag, 0=disable 1..9=level */
-int d_emu = 0;
+#elif defined(__x86_64__)
-unsigned long CRs[5] =
+int64_t cpu_get_real_ticks(void)
{
- 0x00000013, /* valid bits: 0xe005003f */
- 0x00000000, /* invalid */
- 0x00000000,
- 0x00000000,
- 0x00000000
-};
+ uint32_t low,high;
+ int64_t val;
+ asm volatile("rdtsc" : "=a" (low), "=d" (high));
+ val = high;
+ val <<= 32;
+ val |= low;
+ return val;
+}
-/*
- * DR0-3 = linear address of breakpoint 0-3
- * DR4=5 = reserved
- * DR6 b0-b3 = BP active
- * b13 = BD
- * b14 = BS
- * b15 = BT
- * DR7 b0-b1 = G:L bp#0
- * b2-b3 = G:L bp#1
- * b4-b5 = G:L bp#2
- * b6-b7 = G:L bp#3
- * b8-b9 = GE:LE
- * b13 = GD
- * b16-19= LLRW bp#0 LL=00(1),01(2),11(4)
- * b20-23= LLRW bp#1 RW=00(x),01(w),11(rw)
- * b24-27= LLRW bp#2
- * b28-31= LLRW bp#3
- */
-unsigned long DRs[8] =
+#else
+
+static uint64_t emu_time;
+
+int64_t cpu_get_real_ticks(void)
+{
+ return emu_time++;
+}
+
+#endif
+
+#ifdef TARGET_I386
+/***********************************************************/
+/* CPUX86 core interface */
+
+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)
{
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0xffff1ff0,
- 0x00000400,
- 0xffff1ff0,
- 0x00000400
-};
+ unsigned int e1, e2;
+ e1 = (addr << 16) | (limit & 0xffff);
+ e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
+ e2 |= flags;
+ stl((uint8_t *)ptr, e1);
+ stl((uint8_t *)ptr + 4, e2);
+}
-unsigned long TRs[2] =
+static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
+ unsigned long addr, unsigned int sel)
{
- 0x00000000,
- 0x00000000
-};
+ unsigned int e1, e2;
+ e1 = (addr & 0xffff) | (sel << 16);
+ e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
+ stl((uint8_t *)ptr, e1);
+ stl((uint8_t *)ptr + 4, e2);
+}
-void FatalAppExit(UINT wAction, LPCSTR lpText)
+uint64_t gdt_table[6];
+uint64_t idt_table[256];
+
+/* only dpl matters as we do only user space emulation */
+static void set_idt(int n, unsigned int dpl)
{
- fprintf(stderr, "Fatal error '%s' in CPU\n", lpText);
- exit(1);
+ set_gate(idt_table + n, 0, dpl, 0, 0);
}
-int e_debug_check(unsigned char *PC)
+void cpu_loop(CPUX86State *env)
{
- register unsigned long d7 = DRs[7];
+ int trapnr;
+ target_ulong pc;
+ target_siginfo_t info;
- if (d7&0x03) {
- if (d7&0x30000) return 0; /* only execute(00) bkp */
- if ((long)PC==DRs[0]) {
- e_printf("DBRK: DR0 hit at %p\n",PC);
- DRs[6] |= 1;
- return 1;
- }
- }
- if (d7&0x0c) {
- if (d7&0x300000) return 0;
- if ((long)PC==DRs[1]) {
- e_printf("DBRK: DR1 hit at %p\n",PC);
- DRs[6] |= 2;
- return 1;
- }
+ for(;;) {
+ trapnr = cpu_x86_exec(env);
+ switch(trapnr) {
+ case 0x80:
+ /* linux syscall */
+ 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;
+ 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(info.si_signo, &info);
+ break;
+ case EXCP0D_GPF:
+ if (env->eflags & VM_MASK) {
+ handle_vm86_fault(env);
+ } else {
+ info.si_signo = SIGSEGV;
+ info.si_errno = 0;
+ info.si_code = TARGET_SI_KERNEL;
+ info._sifields._sigfault._addr = 0;
+ queue_signal(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(info.si_signo, &info);
+ break;
+ case EXCP00_DIVZ:
+ if (env->eflags & VM_MASK) {
+ handle_vm86_trap(env, trapnr);
+ } else {
+ /* 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(info.si_signo, &info);
+ }
+ break;
+ case EXCP01_SSTP:
+ case EXCP03_INT3:
+ if (env->eflags & VM_MASK) {
+ handle_vm86_trap(env, trapnr);
+ } else {
+ info.si_signo = SIGTRAP;
+ info.si_errno = 0;
+ if (trapnr == EXCP01_SSTP) {
+ 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(info.si_signo, &info);
+ }
+ break;
+ case EXCP04_INTO:
+ case EXCP05_BOUND:
+ if (env->eflags & VM_MASK) {
+ handle_vm86_trap(env, trapnr);
+ } else {
+ info.si_signo = SIGSEGV;
+ info.si_errno = 0;
+ info.si_code = TARGET_SI_KERNEL;
+ info._sifields._sigfault._addr = 0;
+ queue_signal(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(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(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);
}
- if (d7&0x30) {
- if (d7&0x3000000) return 0;
- if ((long)PC==DRs[2]) {
- e_printf("DBRK: DR2 hit at %p\n",PC);
- DRs[6] |= 4;
- return 1;
- }
+}
+#endif
+
+#ifdef TARGET_ARM
+
+/* XXX: find a better solution */
+extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
+
+static void arm_cache_flush(target_ulong start, target_ulong last)
+{
+ target_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;
}
- if (d7&0xc0) {
- if (d7&0x30000000) return 0;
- if ((long)PC==DRs[3]) {
- e_printf("DBRK: DR3 hit at %p\n",PC);
- DRs[6] |= 8;
- return 1;
- }
+}
+
+void cpu_loop(CPUARMState *env)
+{
+ int trapnr;
+ unsigned int n, insn;
+ target_siginfo_t info;
+
+ for(;;) {
+ trapnr = cpu_arm_exec(env);
+ switch(trapnr) {
+ case EXCP_UDEF:
+ {
+ TaskState *ts = env->opaque;
+ uint32_t opcode;
+
+ /* we handle the FPU emulation here, as Linux */
+ /* we get the opcode */
+ opcode = ldl_raw((uint8_t *)env->regs[15]);
+
+ if (EmulateAll(opcode, &ts->fpa, env->regs) == 0) {
+ info.si_signo = SIGILL;
+ info.si_errno = 0;
+ info.si_code = TARGET_ILL_ILLOPN;
+ info._sifields._sigfault._addr = env->regs[15];
+ queue_signal(info.si_signo, &info);
+ } else {
+ /* increment PC */
+ env->regs[15] += 4;
+ }
+ }
+ break;
+ case EXCP_SWI:
+ {
+ /* system call */
+ if (env->thumb) {
+ insn = lduw((void *)(env->regs[15] - 2));
+ n = insn & 0xff;
+ } else {
+ insn = ldl((void *)(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 >= ARM_SYSCALL_BASE
+ || (env->thumb && n == ARM_THUMB_SYSCALL)) {
+ /* linux syscall */
+ if (env->thumb) {
+ n = env->regs[7];
+ } else {
+ n -= ARM_SYSCALL_BASE;
+ }
+ 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:
+ case EXCP_DATA_ABORT:
+ {
+ info.si_signo = SIGSEGV;
+ info.si_errno = 0;
+ /* XXX: check env->error_code */
+ info.si_code = TARGET_SEGV_MAPERR;
+ info._sifields._sigfault._addr = env->cp15_6;
+ queue_signal(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(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);
}
- return 0;
}
-/* Debug stuff */
-void logstr(unsigned long mask, const char *fmt,...)
+#endif
+
+#ifdef TARGET_SPARC
+
+//#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)
{
- va_list ap;
+ index = (index + cwp * 16) & (16 * NWINDOWS - 1);
+ /* wrap handling : if cwp is on the last window, then we use the
+ registers 'after' the end */
+ if (index < 8 && env->cwp == (NWINDOWS - 1))
+ index += (16 * NWINDOWS);
+ return index;
+}
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
+/* save the register window 'cwp1' */
+static inline void save_window_offset(CPUSPARCState *env, int cwp1)
+{
+ unsigned int i;
+ uint32_t *sp_ptr;
+
+ sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
+#if defined(DEBUG_WIN)
+ printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
+ (int)sp_ptr, cwp1);
+#endif
+ for(i = 0; i < 16; i++) {
+ put_user(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
+ sp_ptr++;
+ }
}
-/* unconditional message into debug log and stderr */
-#undef error
-void error(const char *fmt, ...)
+static void save_window(CPUSPARCState *env)
{
- va_list ap;
+ unsigned int new_wim;
+ new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
+ ((1LL << NWINDOWS) - 1);
+ save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
+ env->wim = new_wim;
+}
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
- exit(1);
+static void restore_window(CPUSPARCState *env)
+{
+ unsigned int new_wim, i, cwp1;
+ uint32_t *sp_ptr, reg;
+
+ new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
+ ((1LL << NWINDOWS) - 1);
+
+ /* restore the invalid window */
+ cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
+ sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
+#if defined(DEBUG_WIN)
+ printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
+ (int)sp_ptr, cwp1);
+#endif
+ for(i = 0; i < 16; i++) {
+ get_user(reg, sp_ptr);
+ env->regbase[get_reg_index(env, cwp1, 8 + i)] = reg;
+ sp_ptr++;
+ }
+ env->wim = new_wim;
}
-int PortIO(DWORD port, DWORD value, UINT size, BOOL is_write)
+static void flush_windows(CPUSPARCState *env)
{
- fprintf(stderr, "IO: %s port=0x%lx value=0x%lx size=%d",
- is_write ? "write" : "read", port, value, size);
- return value;
+ int offset, cwp1;
+
+ offset = 1;
+ for(;;) {
+ /* if restore would invoke restore_window(), then we can stop */
+ cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
+ if (env->wim & (1 << cwp1))
+ break;
+ save_window_offset(env, cwp1);
+ offset++;
+ }
+ /* set wim so that restore will reload the registers */
+ cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
+ env->wim = 1 << cwp1;
+#if defined(DEBUG_WIN)
+ printf("flush_windows: nb=%d\n", offset - 1);
+#endif
}
-void LogProcName(WORD wSel, WORD wOff, WORD wAction)
+void cpu_loop (CPUSPARCState *env)
{
+ int trapnr, ret;
+ target_siginfo_t info;
+
+ while (1) {
+ trapnr = cpu_sparc_exec (env);
+
+ switch (trapnr) {
+ case 0x88:
+ case 0x90:
+ 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)) {
+ env->psr |= PSR_CARRY;
+ ret = -ret;
+ } else {
+ env->psr &= ~PSR_CARRY;
+ }
+ env->regwptr[0] = ret;
+ /* next instruction */
+ env->pc = env->npc;
+ env->npc = env->npc + 4;
+ break;
+ case 0x83: /* flush windows */
+ 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(info.si_signo, &info);
+ }
+ break;
+#else
+ // XXX
+#endif
+ case 0x100: // XXX, why do we get these?
+ 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(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);
+ }
}
-void INT_handler(int num, void *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;
+}
+
+static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
{
- fprintf(stderr, "EM86: int %d\n", num);
+ /* TO FIX */
}
-/***********************************************************/
+void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
+{
+ cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
+}
+
+void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
+{
+ cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
+}
+
+uint32_t cpu_ppc_load_decr (CPUState *env)
+{
+ /* TO FIX */
+ return -1;
+}
+
+void cpu_ppc_store_decr (CPUState *env, uint32_t value)
+{
+ /* TO FIX */
+}
+
+void cpu_loop(CPUPPCState *env)
+{
+ target_siginfo_t info;
+ int trapnr;
+ uint32_t ret;
+
+ for(;;) {
+ trapnr = cpu_ppc_exec(env);
+ if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
+ trapnr != EXCP_TRACE) {
+ if (loglevel > 0) {
+ cpu_dump_state(env, logfile, fprintf, 0);
+ }
+ }
+ switch(trapnr) {
+ case EXCP_NONE:
+ break;
+ case EXCP_SYSCALL_USER:
+ /* system call */
+ /* 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_RESET:
+ /* Should not happen ! */
+ fprintf(stderr, "RESET asked... Stop emulation\n");
+ if (loglevel)
+ fprintf(logfile, "RESET asked... Stop emulation\n");
+ abort();
+ case EXCP_MACHINE_CHECK:
+ fprintf(stderr, "Machine check exeption... Stop emulation\n");
+ if (loglevel)
+ fprintf(logfile, "RESET asked... Stop emulation\n");
+ info.si_signo = TARGET_SIGBUS;
+ info.si_errno = 0;
+ info.si_code = TARGET_BUS_OBJERR;
+ info._sifields._sigfault._addr = env->nip - 4;
+ queue_signal(info.si_signo, &info);
+ case EXCP_DSI:
+ fprintf(stderr, "Invalid data memory access: 0x%08x\n", env->spr[DAR]);
+ if (loglevel) {
+ fprintf(logfile, "Invalid data memory access: 0x%08x\n",
+ env->spr[DAR]);
+ }
+ switch (env->error_code & 0xF) {
+ case EXCP_DSI_TRANSLATE:
+ info.si_signo = TARGET_SIGSEGV;
+ info.si_errno = 0;
+ info.si_code = TARGET_SEGV_MAPERR;
+ break;
+ case EXCP_DSI_NOTSUP:
+ case EXCP_DSI_EXTERNAL:
+ info.si_signo = TARGET_SIGILL;
+ info.si_errno = 0;
+ info.si_code = TARGET_ILL_ILLADR;
+ break;
+ case EXCP_DSI_PROT:
+ info.si_signo = TARGET_SIGSEGV;
+ info.si_errno = 0;
+ info.si_code = TARGET_SEGV_ACCERR;
+ break;
+ case EXCP_DSI_DABR:
+ info.si_signo = TARGET_SIGTRAP;
+ info.si_errno = 0;
+ info.si_code = TARGET_TRAP_BRKPT;
+ break;
+ default:
+ /* Let's send a regular segfault... */
+ fprintf(stderr, "Invalid segfault errno (%02x)\n",
+ env->error_code);
+ if (loglevel) {
+ fprintf(logfile, "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(info.si_signo, &info);
+ break;
+ case EXCP_ISI:
+ fprintf(stderr, "Invalid instruction fetch\n");
+ if (loglevel)
+ fprintf(logfile, "Invalid instruction fetch\n");
+ switch (env->error_code) {
+ case EXCP_ISI_TRANSLATE:
+ info.si_signo = TARGET_SIGSEGV;
+ info.si_errno = 0;
+ info.si_code = TARGET_SEGV_MAPERR;
+ break;
+ case EXCP_ISI_GUARD:
+ info.si_signo = TARGET_SIGILL;
+ info.si_errno = 0;
+ info.si_code = TARGET_ILL_ILLADR;
+ break;
+ case EXCP_ISI_NOEXEC:
+ case EXCP_ISI_PROT:
+ info.si_signo = TARGET_SIGSEGV;
+ info.si_errno = 0;
+ info.si_code = TARGET_SEGV_ACCERR;
+ break;
+ default:
+ /* Let's send a regular segfault... */
+ fprintf(stderr, "Invalid segfault errno (%02x)\n",
+ env->error_code);
+ if (loglevel) {
+ fprintf(logfile, "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(info.si_signo, &info);
+ break;
+ case EXCP_EXTERNAL:
+ /* Should not happen ! */
+ fprintf(stderr, "External interruption... Stop emulation\n");
+ if (loglevel)
+ fprintf(logfile, "External interruption... Stop emulation\n");
+ abort();
+ case EXCP_ALIGN:
+ fprintf(stderr, "Invalid unaligned memory access\n");
+ if (loglevel)
+ fprintf(logfile, "Invalid unaligned memory access\n");
+ info.si_signo = TARGET_SIGBUS;
+ info.si_errno = 0;
+ info.si_code = TARGET_BUS_ADRALN;
+ info._sifields._sigfault._addr = env->nip - 4;
+ queue_signal(info.si_signo, &info);
+ break;
+ case EXCP_PROGRAM:
+ switch (env->error_code & ~0xF) {
+ case EXCP_FP:
+ fprintf(stderr, "Program exception\n");
+ if (loglevel)
+ fprintf(logfile, "Program exception\n");
+ /* Set FX */
+ env->fpscr[7] |= 0x8;
+ /* Finally, update FEX */
+ if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
+ ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
+ env->fpscr[7] |= 0x4;
+ info.si_signo = TARGET_SIGFPE;
+ info.si_errno = 0;
+ switch (env->error_code & 0xF) {
+ case EXCP_FP_OX:
+ info.si_code = TARGET_FPE_FLTOVF;
+ break;
+ case EXCP_FP_UX:
+ info.si_code = TARGET_FPE_FLTUND;
+ break;
+ case EXCP_FP_ZX:
+ case EXCP_FP_VXZDZ:
+ info.si_code = TARGET_FPE_FLTDIV;
+ break;
+ case EXCP_FP_XX:
+ info.si_code = TARGET_FPE_FLTRES;
+ break;
+ case EXCP_FP_VXSOFT:
+ info.si_code = TARGET_FPE_FLTINV;
+ break;
+ case EXCP_FP_VXNAN:
+ case EXCP_FP_VXISI:
+ case EXCP_FP_VXIDI:
+ case EXCP_FP_VXIMZ:
+ case EXCP_FP_VXVC:
+ case EXCP_FP_VXSQRT:
+ case EXCP_FP_VXCVI:
+ info.si_code = TARGET_FPE_FLTSUB;
+ break;
+ default:
+ fprintf(stderr, "Unknown floating point exception "
+ "(%02x)\n", env->error_code);
+ if (loglevel) {
+ fprintf(logfile, "Unknown floating point exception "
+ "(%02x)\n", env->error_code & 0xF);
+ }
+ }
+ break;
+ case EXCP_INVAL:
+ fprintf(stderr, "Invalid instruction\n");
+ if (loglevel)
+ fprintf(logfile, "Invalid instruction\n");
+ info.si_signo = TARGET_SIGILL;
+ info.si_errno = 0;
+ switch (env->error_code & 0xF) {
+ case EXCP_INVAL_INVAL:
+ info.si_code = TARGET_ILL_ILLOPC;
+ break;
+ case EXCP_INVAL_LSWX:
+ info.si_code = TARGET_ILL_ILLOPN;
+ break;
+ case EXCP_INVAL_SPR:
+ info.si_code = TARGET_ILL_PRVREG;
+ break;
+ case EXCP_INVAL_FP:
+ info.si_code = TARGET_ILL_COPROC;
+ break;
+ default:
+ fprintf(stderr, "Unknown invalid operation (%02x)\n",
+ env->error_code & 0xF);
+ if (loglevel) {
+ fprintf(logfile, "Unknown invalid operation (%02x)\n",
+ env->error_code & 0xF);
+ }
+ info.si_code = TARGET_ILL_ILLADR;
+ break;
+ }
+ break;
+ case EXCP_PRIV:
+ fprintf(stderr, "Privilege violation\n");
+ if (loglevel)
+ fprintf(logfile, "Privilege violation\n");
+ info.si_signo = TARGET_SIGILL;
+ info.si_errno = 0;
+ switch (env->error_code & 0xF) {
+ case EXCP_PRIV_OPC:
+ info.si_code = TARGET_ILL_PRVOPC;
+ break;
+ case EXCP_PRIV_REG:
+ info.si_code = TARGET_ILL_PRVREG;
+ break;
+ default:
+ fprintf(stderr, "Unknown privilege violation (%02x)\n",
+ env->error_code & 0xF);
+ info.si_code = TARGET_ILL_PRVOPC;
+ break;
+ }
+ break;
+ case EXCP_TRAP:
+ fprintf(stderr, "Tried to call a TRAP\n");
+ if (loglevel)
+ fprintf(logfile, "Tried to call a TRAP\n");
+ abort();
+ default:
+ /* Should not happen ! */
+ fprintf(stderr, "Unknown program exception (%02x)\n",
+ env->error_code);
+ if (loglevel) {
+ fprintf(logfile, "Unknwon program exception (%02x)\n",
+ env->error_code);
+ }
+ abort();
+ }
+ info._sifields._sigfault._addr = env->nip - 4;
+ queue_signal(info.si_signo, &info);
+ break;
+ case EXCP_NO_FP:
+ fprintf(stderr, "No floating point allowed\n");
+ if (loglevel)
+ fprintf(logfile, "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(info.si_signo, &info);
+ break;
+ case EXCP_DECR:
+ /* Should not happen ! */
+ fprintf(stderr, "Decrementer exception\n");
+ if (loglevel)
+ fprintf(logfile, "Decrementer exception\n");
+ abort();
+ case EXCP_RESA: /* Implementation specific */
+ /* Should not happen ! */
+ fprintf(stderr, "RESA exception should never happen !\n");
+ if (loglevel)
+ fprintf(logfile, "RESA exception should never happen !\n");
+ abort();
+ case EXCP_RESB: /* Implementation specific */
+ /* Should not happen ! */
+ fprintf(stderr, "RESB exception should never happen !\n");
+ if (loglevel)
+ fprintf(logfile, "RESB exception should never happen !\n");
+ abort();
+ case EXCP_TRACE:
+ /* Do nothing: we use this to trace execution */
+ break;
+ case EXCP_FP_ASSIST:
+ /* Should not happen ! */
+ fprintf(stderr, "Floating point assist exception\n");
+ if (loglevel)
+ fprintf(logfile, "Floating point assist exception\n");
+ abort();
+ case EXCP_MTMSR:
+ /* We reloaded the msr, just go on */
+ if (msr_pr == 0) {
+ fprintf(stderr, "Tried to go into supervisor mode !\n");
+ if (loglevel)
+ fprintf(logfile, "Tried to go into supervisor mode !\n");
+ abort();
+ }
+ break;
+ case EXCP_BRANCH:
+ /* We stopped because of a jump... */
+ break;
+ case EXCP_RFI:
+ /* Should not occur: we always are in user mode */
+ fprintf(stderr, "Return from interrupt ?\n");
+ if (loglevel)
+ fprintf(logfile, "Return from interrupt ?\n");
+ abort();
+ case EXCP_INTERRUPT:
+ /* Don't know why this should ever happen... */
+ break;
+ case EXCP_DEBUG:
+ {
+ int sig;
-/* XXX: currently we use LDT entries */
-#define __USER_CS (0x23|4)
-#define __USER_DS (0x2B|4)
+ sig = gdb_handlesig (env, TARGET_SIGTRAP);
+ if (sig)
+ {
+ info.si_signo = sig;
+ info.si_errno = 0;
+ info.si_code = TARGET_TRAP_BRKPT;
+ queue_signal(info.si_signo, &info);
+ }
+ }
+ break;
+ default:
+ fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
+ trapnr);
+ if (loglevel) {
+ fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
+ "0x%02x - aborting\n", trapnr, env->error_code);
+ }
+ abort();
+ }
+ process_pending_signals(env);
+ }
+}
+#endif
void usage(void)
{
- printf("gemu version 0.1, Copyright (c) 2003 Fabrice Bellard\n"
- "usage: gemu program [arguments...]\n"
- "Linux x86 emulator\n"
- );
- exit(1);
+ printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n"
+ "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n"
+ "Linux CPU emulator (compiled for %s emulation)\n"
+ "\n"
+ "-h print this help\n"
+ "-g wait gdb connection to port %d\n"
+ "-L path set the elf interpreter prefix (default=%s)\n"
+ "-s size set the stack size in bytes (default=%ld)\n"
+ "\n"
+ "debug options:\n"
+#ifdef USE_CODE_COPY
+ "-no-code-copy disable code copy acceleration\n"
+#endif
+ "-d options activate log (logfile=%s)\n"
+ "-p pagesize set the host page size to 'pagesize'\n",
+ TARGET_ARCH,
+ DEFAULT_GDBSTUB_PORT,
+ interp_prefix,
+ x86_stack_size,
+ DEBUG_LOGFILE);
+ _exit(1);
}
+/* XXX: currently only used for async signals (see signal.c) */
+CPUState *global_env;
+/* used only if single thread */
+CPUState *cpu_single_env = NULL;
+
+/* used to free thread contexts */
+TaskState *first_task_state;
+
int main(int argc, char **argv)
{
const char *filename;
struct target_pt_regs regs1, *regs = ®s1;
struct image_info info1, *info = &info1;
- Interp_ENV *env;
-
+ TaskState ts1, *ts = &ts1;
+ CPUState *env;
+ int optind;
+ const char *r;
+ int use_gdbstub = 0;
+
if (argc <= 1)
usage();
-
- filename = argv[1];
+
+ /* init debug */
+ cpu_set_log_filename(DEBUG_LOGFILE);
+
+ 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;
+ 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")) {
+ use_gdbstub = 1;
+ } else
+#ifdef USE_CODE_COPY
+ if (!strcmp(r, "no-code-copy")) {
+ code_copy_enabled = 0;
+ } else
+#endif
+ {
+ 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));
- if(elf_exec(filename, argv+1, environ, regs, info) != 0) {
+ /* Scan interp_prefix dir for replacement files. */
+ init_paths(interp_prefix);
+
+ /* NOTE: we need to init the CPU at this stage to get
+ qemu_host_page_size */
+ env = cpu_init();
+
+ if (elf_exec(filename, argv+optind, environ, regs, info) != 0) {
printf("Error loading %s\n", filename);
- exit(1);
+ _exit(1);
}
-#if 0
- printf("start_brk 0x%08lx\n" , info->start_brk);
- printf("end_code 0x%08lx\n" , info->end_code);
- printf("start_code 0x%08lx\n" , info->start_code);
- printf("end_data 0x%08lx\n" , info->end_data);
- printf("start_stack 0x%08lx\n" , info->start_stack);
- printf("brk 0x%08lx\n" , info->brk);
- printf("esp 0x%08lx\n" , regs->esp);
- printf("eip 0x%08lx\n" , regs->eip);
-#endif
+ if (loglevel) {
+ page_dump(logfile);
+
+ fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
+ fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
+ fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
+ fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
+ fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
+ fprintf(logfile, "brk 0x%08lx\n" , info->brk);
+ fprintf(logfile, "entry 0x%08lx\n" , info->entry);
+ }
target_set_brk((char *)info->brk);
syscall_init();
+ signal_init();
- env = &env_global;
- envp_global = env;
- memset(env, 0, sizeof(Interp_ENV));
-
- env->rax.e = regs->eax;
- env->rbx.e = regs->ebx;
- env->rcx.e = regs->ecx;
- env->rdx.e = regs->edx;
- env->rsi.esi = regs->esi;
- env->rdi.edi = regs->edi;
- env->rbp.ebp = regs->ebp;
- env->rsp.esp = regs->esp;
- env->cs.cs = __USER_CS;
- env->ds.ds = __USER_DS;
- env->es.es = __USER_DS;
- env->ss.ss = __USER_DS;
- env->fs.fs = __USER_DS;
- env->gs.gs = __USER_DS;
- env->trans_addr = regs->eip;
-
- LDT[__USER_CS >> 3].w86Flags = DF_PRESENT | DF_PAGES | DF_32;
- LDT[__USER_CS >> 3].dwSelLimit = 0xfffff;
- LDT[__USER_CS >> 3].lpSelBase = NULL;
-
- LDT[__USER_DS >> 3].w86Flags = DF_PRESENT | DF_PAGES | DF_32;
- LDT[__USER_DS >> 3].dwSelLimit = 0xfffff;
- LDT[__USER_DS >> 3].lpSelBase = NULL;
- init_npu();
+ global_env = env;
- for(;;) {
- int err;
- uint8_t *pc;
+ /* build Task State */
+ memset(ts, 0, sizeof(TaskState));
+ env->opaque = ts;
+ ts->used = 1;
+ env->user_mode_only = 1;
+
+#if defined(TARGET_I386)
+ cpu_x86_set_cpl(env, 3);
- err = invoke_code32(env, -1);
- env->trans_addr = env->return_addr;
- pc = env->seg_regs[0] + env->trans_addr;
- switch(err) {
- case EXCP0D_GPF:
- if (pc[0] == 0xcd && pc[1] == 0x80) {
- /* syscall */
- env->trans_addr += 2;
- env->rax.e = do_syscall(env->rax.e,
- env->rbx.e,
- env->rcx.e,
- env->rdx.e,
- env->rsi.esi,
- env->rdi.edi,
- env->rbp.ebp);
- } else {
- goto trap_error;
- }
- break;
- default:
- trap_error:
- fprintf(stderr, "GEMU: Unknown error %d, aborting\n", err);
- d_emu = 9;
- fprintf(stderr, "%s\n%s\n",
- e_print_cpuemu_regs(env, 1),
- e_emu_disasm(env,pc,1));
- abort();
+ 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;
+ }
+
+ /* flags setup : we activate the IRQs by default as in user mode */
+ env->eflags |= IF_MASK;
+
+ /* linux register setup */
+ 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;
+
+ /* linux interrupt setup */
+ env->idt.base = (long)idt_table;
+ env->idt.limit = sizeof(idt_table) - 1;
+ set_idt(0, 0);
+ set_idt(1, 0);
+ set_idt(2, 0);
+ set_idt(3, 3);
+ set_idt(4, 3);
+ set_idt(5, 3);
+ 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 */
+ env->gdt.base = (long)gdt_table;
+ env->gdt.limit = sizeof(gdt_table) - 1;
+ 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));
+ 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_DS, __USER_DS);
+ cpu_x86_load_seg(env, R_ES, __USER_DS);
+ cpu_x86_load_seg(env, R_SS, __USER_DS);
+ cpu_x86_load_seg(env, R_FS, __USER_DS);
+ cpu_x86_load_seg(env, R_GS, __USER_DS);
+
+#elif defined(TARGET_ARM)
+ {
+ int i;
+ for(i = 0; i < 16; i++) {
+ env->regs[i] = regs->uregs[i];
}
+ env->cpsr = regs->uregs[16];
+ 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;
+ }
+#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;
+ for (i = 0; i < 32; i++) {
+ if (i != 12 && i != 6 && i != 13)
+ env->msr[i] = (regs->msr >> i) & 1;
+ }
+ env->nip = regs->nip;
+ for(i = 0; i < 32; i++) {
+ env->gpr[i] = regs->gpr[i];
+ }
+ }
+#else
+#error unsupported target CPU
+#endif
+
+ if (use_gdbstub) {
+ gdbserver_start (DEFAULT_GDBSTUB_PORT);
+ gdb_handlesig(env, 0);
}
+ cpu_loop(env);
+ /* never exits */
return 0;
}
projects / mirror_qemu.git / blobdiff