/*
- * 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 "cpu-i386.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);
}
-/***********************************************************/
-/* CPUX86 core interface */
-
-void cpu_x86_outb(int addr, int val)
+void cpu_outb(CPUState *env, int addr, int val)
{
fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
}
-void cpu_x86_outw(int addr, int val)
+void cpu_outw(CPUState *env, int addr, int val)
{
fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
}
-void cpu_x86_outl(int addr, int val)
+void cpu_outl(CPUState *env, int addr, int val)
{
fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
}
-int cpu_x86_inb(int addr)
+int cpu_inb(CPUState *env, int addr)
{
fprintf(stderr, "inb: port=0x%04x\n", addr);
return 0;
}
-int cpu_x86_inw(int addr)
+int cpu_inw(CPUState *env, int addr)
{
fprintf(stderr, "inw: port=0x%04x\n", addr);
return 0;
}
-int cpu_x86_inl(int addr)
+int cpu_inl(CPUState *env, int addr)
{
fprintf(stderr, "inl: port=0x%04x\n", addr);
return 0;
}
+int cpu_get_pic_interrupt(CPUState *env)
+{
+ return -1;
+}
+
+/* timers for rdtsc */
-/* XXX: currently we use LDT entries */
-#define __USER_CS (0x23|4)
-#define __USER_DS (0x2B|4)
+#if defined(__i386__)
+
+int64_t cpu_get_real_ticks(void)
+{
+ int64_t val;
+ asm volatile ("rdtsc" : "=A" (val));
+ return val;
+}
+
+#elif defined(__x86_64__)
+
+int64_t cpu_get_real_ticks(void)
+{
+ uint32_t low,high;
+ int64_t val;
+ asm volatile("rdtsc" : "=a" (low), "=d" (high));
+ val = high;
+ val <<= 32;
+ val |= low;
+ return val;
+}
+
+#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)
+{
+ 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);
+}
+
+static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
+ unsigned long addr, unsigned int sel)
+{
+ 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);
+}
+
+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)
+{
+ set_gate(idt_table + n, 0, dpl, 0, 0);
+}
+
+void cpu_loop(CPUX86State *env)
+{
+ int trapnr;
+ target_ulong pc;
+ target_siginfo_t info;
+
+ 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);
+ }
+}
+#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;
+ }
+}
+
+void cpu_loop(CPUARMState *env)
+{
+ int trapnr;
+ unsigned int n, insn;
+ target_siginfo_t info;
+ uint32_t addr;
+
+ 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:
+ case EXCP_BKPT:
+ {
+ env->eabi = 1;
+ /* system call */
+ if (trapnr == EXCP_BKPT) {
+ if (env->thumb) {
+ insn = lduw((void *)(env->regs[15]));
+ n = insn & 0xff;
+ env->regs[15] += 2;
+ } else {
+ insn = ldl((void *)(env->regs[15]));
+ n = (insn & 0xf) | ((insn >> 4) & 0xff0);
+ env->regs[15] += 4;
+ }
+ } else {
+ 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 == 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;
+ }
+ 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_data;
+ goto do_segv;
+ case EXCP_DATA_ABORT:
+ addr = env->cp15.c6_insn;
+ 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(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);
+ }
+}
+
+#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)
+{
+ 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;
+}
+
+/* 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++;
+ }
+}
+
+static void save_window(CPUSPARCState *env)
+{
+ 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;
+}
+
+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;
+}
+
+static void flush_windows(CPUSPARCState *env)
+{
+ 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 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);
+ }
+}
+
+#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)
+{
+ /* 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[SPR_DAR]);
+ if (loglevel) {
+ fprintf(logfile, "Invalid data memory access: 0x%08x\n",
+ env->spr[SPR_DAR]);
+ }
+ 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... */
+ 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 & 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... */
+ 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_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_INTERRUPT:
+ /* Don't know why this should ever happen... */
+ 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:
+ 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
+
+#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)
+};
+
+#undef MIPS_SYS
+
+void cpu_loop(CPUMIPSState *env)
+{
+ target_siginfo_t info;
+ int trapnr, ret, nb_args;
+ unsigned int syscall_num;
+ target_ulong arg5, arg6, sp_reg;
+
+ for(;;) {
+ trapnr = cpu_mips_exec(env);
+ switch(trapnr) {
+ case EXCP_SYSCALL:
+ {
+ syscall_num = env->gpr[2] - 4000;
+ if (syscall_num >= sizeof(mips_syscall_args)) {
+ ret = -ENOSYS;
+ } else {
+ nb_args = mips_syscall_args[syscall_num];
+ if (nb_args >= 5) {
+ sp_reg = env->gpr[29];
+ /* these arguments are taken from the stack */
+ if (get_user(arg5, (target_ulong *)(sp_reg + 16))) {
+ ret = -EFAULT;
+ goto fail;
+ }
+ if (nb_args >= 6) {
+ if (get_user(arg6, (target_ulong *)(sp_reg + 20))) {
+ ret = -EFAULT;
+ goto fail;
+ }
+ } else {
+ arg6 = 0;
+ }
+ } else {
+ arg5 = 0;
+ arg6 = 0;
+ }
+ ret = do_syscall(env,
+ env->gpr[2],
+ env->gpr[4],
+ env->gpr[5],
+ env->gpr[6],
+ env->gpr[7],
+ arg5,
+ arg6);
+ }
+ fail:
+ env->PC += 4;
+ if ((unsigned int)ret >= (unsigned int)(-1133)) {
+ env->gpr[7] = 1; /* error flag */
+ ret = -ret;
+ env->gpr[0] = ret;
+ env->gpr[2] = ret;
+ } else {
+ env->gpr[7] = 0; /* error flag */
+ env->gpr[2] = ret;
+ }
+ }
+ break;
+ case EXCP_CpU:
+ case EXCP_RI:
+ {
+ uint32_t insn, op;
+
+ if (get_user(insn, (uint32_t *)env->PC) < 0)
+ goto sigill;
+ op = insn >> 26;
+ // printf("insn=%08x op=%02x\n", insn, op);
+ /* XXX: totally dummy FP ops just to be able to launch
+ a few executables */
+ switch(op) {
+ case 0x31: /* LWC1 */
+ env->PC += 4;
+ break;
+ case 0x39: /* SWC1 */
+ env->PC += 4;
+ break;
+ case 0x11:
+ switch((insn >> 21) & 0x1f) {
+ case 0x02: /* CFC1 */
+ env->PC += 4;
+ break;
+ default:
+ goto sigill;
+ }
+ break;
+ default:
+ sigill:
+ info.si_signo = TARGET_SIGILL;
+ info.si_errno = 0;
+ info.si_code = 0;
+ queue_signal(info.si_signo, &info);
+ break;
+ }
+ }
+ 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
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) 2003-2005 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 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"
+ "\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,
+ interp_prefix,
+ x86_stack_size,
+ DEBUG_LOGFILE);
+ _exit(1);
}
+/* XXX: currently only used for async signals (see signal.c) */
+CPUState *global_env;
+
+/* 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;
- CPUX86State *env;
-
+ TaskState ts1, *ts = &ts1;
+ CPUState *env;
+ int optind;
+ const char *r;
+ int gdbstub_port = 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")) {
+ gdbstub_port = atoi(argv[optind++]);
+ } 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();
+ global_env = env;
+
+ 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 = cpu_x86_init();
+ /* 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);
+
+ 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_EDI] = regs->edi;
env->regs[R_EBP] = regs->ebp;
env->regs[R_ESP] = regs->esp;
- env->segs[R_CS] = __USER_CS;
- env->segs[R_DS] = __USER_DS;
- env->segs[R_ES] = __USER_DS;
- env->segs[R_SS] = __USER_DS;
- env->segs[R_FS] = __USER_DS;
- env->segs[R_GS] = __USER_DS;
- env->pc = regs->eip;
+ env->eip = regs->eip;
-#if 0
- LDT[__USER_CS >> 3].w86Flags = DF_PRESENT | DF_PAGES | DF_32;
- LDT[__USER_CS >> 3].dwSelLimit = 0xfffff;
- LDT[__USER_CS >> 3].lpSelBase = NULL;
+ /* 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);
- LDT[__USER_DS >> 3].w86Flags = DF_PRESENT | DF_PAGES | DF_32;
- LDT[__USER_DS >> 3].dwSelLimit = 0xfffff;
- LDT[__USER_DS >> 3].lpSelBase = NULL;
-#endif
+ /* 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);
- for(;;) {
- int err;
- uint8_t *pc;
-
- err = cpu_x86_exec(env);
- switch(err) {
- case EXCP0D_GPF:
- pc = (uint8_t *)env->pc;
- if (pc[0] == 0xcd && pc[1] == 0x80) {
- /* syscall */
- env->pc += 2;
- env->regs[R_EAX] = do_syscall(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]);
- } else {
- goto trap_error;
- }
- break;
- default:
- trap_error:
- fprintf(stderr, "0x%08lx: Unknown exception %d, aborting\n",
- (long)env->pc, err);
- abort();
+#elif defined(TARGET_ARM)
+ {
+ int i;
+ cpu_arm_set_model(env, ARM_CPUID_ARM1026);
+ cpsr_write(env, regs->uregs[16], 0xffffffff);
+ for(i = 0; i < 16; i++) {
+ env->regs[i] = regs->uregs[i];
+ }
+ 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)
+ {
+ ppc_def_t *def;
+ int i;
+
+ /* Choose and initialise CPU */
+ /* XXX: CPU model (or PVR) should be provided on command line */
+ // ppc_find_by_name("750gx", &def);
+ // ppc_find_by_name("750fx", &def);
+ // ppc_find_by_name("750p", &def);
+ ppc_find_by_name("750", &def);
+ // ppc_find_by_name("G3", &def);
+ // ppc_find_by_name("604r", &def);
+ // ppc_find_by_name("604e", &def);
+ // ppc_find_by_name("604", &def);
+ if (def == NULL) {
+ cpu_abort(env,
+ "Unable to find PowerPC CPU definition\n");
}
+ cpu_ppc_register(env, def);
+
+ 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];
+ }
+ }
+#elif defined(TARGET_MIPS)
+ {
+ int i;
+
+ for(i = 0; i < 32; i++) {
+ env->gpr[i] = regs->regs[i];
+ }
+ env->PC = regs->cp0_epc;
+ }
+#else
+#error unsupported target CPU
+#endif
+
+ if (gdbstub_port) {
+ gdbserver_start (gdbstub_port);
+ gdb_handlesig(env, 0);
}
+ cpu_loop(env);
+ /* never exits */
return 0;
}
projects / qemu.git / blobdiff