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-rw-r--r--darwin-user/main.c1027
1 files changed, 0 insertions, 1027 deletions
diff --git a/darwin-user/main.c b/darwin-user/main.c
deleted file mode 100644
index 544e219cd4..0000000000
--- a/darwin-user/main.c
+++ /dev/null
@@ -1,1027 +0,0 @@
-/*
- * qemu user main
- *
- * Copyright (c) 2003 Fabrice Bellard
- * Copyright (c) 2006 Pierre d'Herbemont
- *
- * 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, see <http://www.gnu.org/licenses/>.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-
-#include <sys/syscall.h>
-#include <sys/mman.h>
-
-#include "qemu.h"
-#include "qemu-common.h"
-
-#define DEBUG_LOGFILE "/tmp/qemu.log"
-
-#ifdef __APPLE__
-#include <crt_externs.h>
-# define environ (*_NSGetEnviron())
-#endif
-
-#include <mach/mach_init.h>
-#include <mach/vm_map.h>
-
-int singlestep;
-
-const char *interp_prefix = "";
-
-asm(".zerofill __STD_PROG_ZONE, __STD_PROG_ZONE, __std_prog_zone, 0x0dfff000");
-
-/* 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 stack_size = 512 * 1024;
-
-void qerror(const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
- fprintf(stderr, "\n");
- exit(1);
-}
-
-void gemu_log(const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
-}
-
-int cpu_get_pic_interrupt(CPUArchState *env)
-{
- return -1;
-}
-#ifdef TARGET_PPC
-
-static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env)
-{
- /* TO FIX */
- return 0;
-}
-
-uint64_t cpu_ppc_load_tbl(CPUPPCState *env)
-{
- return cpu_ppc_get_tb(env);
-}
-
-uint32_t cpu_ppc_load_tbu(CPUPPCState *env)
-{
- return cpu_ppc_get_tb(env) >> 32;
-}
-
-uint64_t cpu_ppc_load_atbl(CPUPPCState *env)
-{
- return cpu_ppc_get_tb(env);
-}
-
-uint32_t cpu_ppc_load_atbu(CPUPPCState *env)
-{
- return cpu_ppc_get_tb(env) >> 32;
-}
-
-uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env)
-{
- cpu_ppc_load_tbu(env);
-}
-
-uint32_t cpu_ppc601_load_rtcl(CPUPPCState *env)
-{
- return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
-}
-
-/* XXX: to be fixed */
-int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
-{
- return -1;
-}
-
-int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
-{
- return -1;
-}
-
-#define EXCP_DUMP(env, fmt, ...) \
-do { \
- fprintf(stderr, fmt , ## __VA_ARGS__); \
- cpu_dump_state(env, stderr, fprintf, 0); \
- qemu_log(fmt, ## __VA_ARGS__); \
- log_cpu_state(env, 0); \
-} while (0)
-
-void cpu_loop(CPUPPCState *env)
-{
- int trapnr;
- uint32_t ret;
- target_siginfo_t info;
-
- 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 */
-#ifndef DAR
-/* To deal with multiple qemu header version as host for the darwin-user code */
-# define DAR SPR_DAR
-#endif
- EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n",
- env->spr[SPR_DAR]);
- /* Handle this via the gdb */
- gdb_handlesig (env, SIGSEGV);
-
- info.si_addr = (void*)env->nip;
- queue_signal(info.si_signo, &info);
- break;
- case POWERPC_EXCP_ISI: /* Instruction storage exception */
- EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx "\n",
- env->spr[SPR_DAR]);
- /* Handle this via the gdb */
- gdb_handlesig (env, SIGSEGV);
-
- info.si_addr = (void*)(env->nip - 4);
- queue_signal(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");
- info.si_errno = 0;
- info.si_code = BUS_ADRALN;
- info.si_addr = (void*)(env->nip - 4);
- queue_signal(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");
- /* Set FX */
- info.si_signo = SIGFPE;
- info.si_errno = 0;
- switch (env->error_code & 0xF) {
- case POWERPC_EXCP_FP_OX:
- info.si_code = FPE_FLTOVF;
- break;
- case POWERPC_EXCP_FP_UX:
- info.si_code = FPE_FLTUND;
- break;
- case POWERPC_EXCP_FP_ZX:
- case POWERPC_EXCP_FP_VXZDZ:
- info.si_code = FPE_FLTDIV;
- break;
- case POWERPC_EXCP_FP_XX:
- info.si_code = FPE_FLTRES;
- break;
- case POWERPC_EXCP_FP_VXSOFT:
- info.si_code = 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 = 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 = SIGILL;
- info.si_errno = 0;
- switch (env->error_code & 0xF) {
- case POWERPC_EXCP_INVAL_INVAL:
- info.si_code = ILL_ILLOPC;
- break;
- case POWERPC_EXCP_INVAL_LSWX:
- info.si_code = ILL_ILLOPN;
- break;
- case POWERPC_EXCP_INVAL_SPR:
- info.si_code = ILL_PRVREG;
- break;
- case POWERPC_EXCP_INVAL_FP:
- info.si_code = ILL_COPROC;
- break;
- default:
- EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
- env->error_code & 0xF);
- info.si_code = ILL_ILLADR;
- break;
- }
- /* Handle this via the gdb */
- gdb_handlesig (env, SIGSEGV);
- break;
- case POWERPC_EXCP_PRIV:
- EXCP_DUMP(env, "Privilege violation\n");
- info.si_signo = SIGILL;
- info.si_errno = 0;
- switch (env->error_code & 0xF) {
- case POWERPC_EXCP_PRIV_OPC:
- info.si_code = ILL_PRVOPC;
- break;
- case POWERPC_EXCP_PRIV_REG:
- info.si_code = ILL_PRVREG;
- break;
- default:
- EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
- env->error_code & 0xF);
- info.si_code = 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.si_addr = (void*)(env->nip - 4);
- queue_signal(info.si_signo, &info);
- break;
- case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
- EXCP_DUMP(env, "No floating point allowed\n");
- info.si_signo = SIGILL;
- info.si_errno = 0;
- info.si_code = ILL_COPROC;
- info.si_addr = (void*)(env->nip - 4);
- queue_signal(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 = SIGILL;
- info.si_errno = 0;
- info.si_code = ILL_COPROC;
- info.si_addr = (void*)(env->nip - 4);
- queue_signal(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_DEBUG: /* Debug interrupt */
- gdb_handlesig (env, SIGTRAP);
- break;
- case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
- EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
- info.si_signo = SIGILL;
- info.si_errno = 0;
- info.si_code = ILL_COPROC;
- info.si_addr = (void*)(env->nip - 4);
- queue_signal(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;
- 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;
- 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 = SIGILL;
- info.si_errno = 0;
- info.si_code = ILL_COPROC;
- info.si_addr = (void*)(env->nip - 4);
- queue_signal(info.si_signo, &info);
- break;
- case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
- cpu_abort(env, "Programmable 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 */
- /* system call */
- if(((int)env->gpr[0]) <= SYS_MAXSYSCALL && ((int)env->gpr[0])>0)
- ret = do_unix_syscall(env, env->gpr[0]/*, env->gpr[3], env->gpr[4],
- env->gpr[5], env->gpr[6], env->gpr[7],
- env->gpr[8], env->gpr[9], env->gpr[10]*/);
- else if(((int)env->gpr[0])<0)
- ret = do_mach_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
- env->gpr[5], env->gpr[6], env->gpr[7],
- env->gpr[8], env->gpr[9], env->gpr[10]);
- else
- ret = do_thread_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
- env->gpr[5], env->gpr[6], env->gpr[7],
- env->gpr[8], env->gpr[9], env->gpr[10]);
-
- /* Unix syscall error signaling */
- if(((int)env->gpr[0]) <= SYS_MAXSYSCALL && ((int)env->gpr[0])>0)
- {
- if( (int)ret < 0 )
- env->nip += 0;
- else
- env->nip += 4;
- }
-
- /* Return value */
- env->gpr[3] = ret;
- 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_I386
-
-/***********************************************************/
-/* CPUX86 core interface */
-
-uint64_t cpu_get_tsc(CPUX86State *env)
-{
- return cpu_get_real_ticks();
-}
-
-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);
-}
-
-#define GDT_TABLE_SIZE 14
-#define LDT_TABLE_SIZE 15
-#define IDT_TABLE_SIZE 256
-#define TSS_SIZE 104
-uint64_t gdt_table[GDT_TABLE_SIZE];
-uint64_t ldt_table[LDT_TABLE_SIZE];
-uint64_t idt_table[IDT_TABLE_SIZE];
-uint32_t tss[TSS_SIZE];
-
-/* 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);
-}
-
-/* ABI convention: after a syscall if there was an error the CF flag is set */
-static inline void set_error(CPUX86State *env, int ret)
-{
- if(ret<0)
- env->eflags = env->eflags | 0x1;
- else
- env->eflags &= ~0x1;
- env->regs[R_EAX] = ret;
-}
-
-void cpu_loop(CPUX86State *env)
-{
- int trapnr;
- int ret;
- uint8_t *pc;
- target_siginfo_t info;
-
- for(;;) {
- trapnr = cpu_x86_exec(env);
- uint32_t *params = (uint32_t *)env->regs[R_ESP];
- switch(trapnr) {
- case 0x79: /* Our commpage hack back door exit is here */
- do_commpage(env, env->eip, *(params + 1), *(params + 2),
- *(params + 3), *(params + 4),
- *(params + 5), *(params + 6),
- *(params + 7), *(params + 8));
- break;
- case 0x81: /* mach syscall */
- {
- ret = do_mach_syscall(env, env->regs[R_EAX],
- *(params + 1), *(params + 2),
- *(params + 3), *(params + 4),
- *(params + 5), *(params + 6),
- *(params + 7), *(params + 8));
- set_error(env, ret);
- break;
- }
- case 0x90: /* unix backdoor */
- {
- /* after sysenter, stack is in R_ECX, new eip in R_EDX (sysexit will flip them back)*/
- int saved_stack = env->regs[R_ESP];
- env->regs[R_ESP] = env->regs[R_ECX];
-
- ret = do_unix_syscall(env, env->regs[R_EAX]);
-
- env->regs[R_ECX] = env->regs[R_ESP];
- env->regs[R_ESP] = saved_stack;
-
- set_error(env, ret);
- break;
- }
- case 0x80: /* unix syscall */
- {
- ret = do_unix_syscall(env, env->regs[R_EAX]/*,
- *(params + 1), *(params + 2),
- *(params + 3), *(params + 4),
- *(params + 5), *(params + 6),
- *(params + 7), *(params + 8)*/);
- set_error(env, ret);
- break;
- }
- case 0x82: /* thread syscall */
- {
- ret = do_thread_syscall(env, env->regs[R_EAX],
- *(params + 1), *(params + 2),
- *(params + 3), *(params + 4),
- *(params + 5), *(params + 6),
- *(params + 7), *(params + 8));
- set_error(env, ret);
- break;
- }
- case EXCP0B_NOSEG:
- case EXCP0C_STACK:
- info.si_signo = SIGBUS;
- info.si_errno = 0;
- info.si_code = BUS_NOOP;
- info.si_addr = 0;
- gdb_handlesig (env, SIGBUS);
- queue_signal(info.si_signo, &info);
- break;
- case EXCP0D_GPF:
- info.si_signo = SIGSEGV;
- info.si_errno = 0;
- info.si_code = SEGV_NOOP;
- info.si_addr = 0;
- gdb_handlesig (env, SIGSEGV);
- 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 = SEGV_MAPERR;
- else
- info.si_code = SEGV_ACCERR;
- info.si_addr = (void*)env->cr[2];
- gdb_handlesig (env, SIGSEGV);
- queue_signal(info.si_signo, &info);
- break;
- case EXCP00_DIVZ:
- /* division by zero */
- info.si_signo = SIGFPE;
- info.si_errno = 0;
- info.si_code = FPE_INTDIV;
- info.si_addr = (void*)env->eip;
- gdb_handlesig (env, SIGFPE);
- queue_signal(info.si_signo, &info);
- break;
- case EXCP01_SSTP:
- case EXCP03_INT3:
- info.si_signo = SIGTRAP;
- info.si_errno = 0;
- info.si_code = TRAP_BRKPT;
- info.si_addr = (void*)env->eip;
- gdb_handlesig (env, SIGTRAP);
- queue_signal(info.si_signo, &info);
- break;
- case EXCP04_INTO:
- case EXCP05_BOUND:
- info.si_signo = SIGSEGV;
- info.si_errno = 0;
- info.si_code = SEGV_NOOP;
- info.si_addr = 0;
- gdb_handlesig (env, SIGSEGV);
- queue_signal(info.si_signo, &info);
- break;
- case EXCP06_ILLOP:
- info.si_signo = SIGILL;
- info.si_errno = 0;
- info.si_code = ILL_ILLOPN;
- info.si_addr = (void*)env->eip;
- gdb_handlesig (env, SIGILL);
- 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, SIGTRAP);
- if (sig)
- {
- info.si_signo = sig;
- info.si_errno = 0;
- info.si_code = TRAP_BRKPT;
- queue_signal(info.si_signo, &info);
- }
- }
- break;
- default:
- pc = (void*)(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
-
-static void usage(void)
-{
- printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n"
- "usage: qemu-" TARGET_ARCH " [-h] [-d opts] [-L path] [-s size] program [arguments...]\n"
- "Darwin CPU emulator (compiled for %s emulation)\n"
- "\n"
- "-h print this help\n"
- "-L path set the %s library path (default='%s')\n"
- "-s size set the stack size in bytes (default=%ld)\n"
- "\n"
- "debug options:\n"
- "-d options activate log (logfile='%s')\n"
- "-g wait for gdb on port 1234\n"
- "-p pagesize set the host page size to 'pagesize'\n",
- "-singlestep always run in singlestep mode\n"
- TARGET_ARCH,
- TARGET_ARCH,
- interp_prefix,
- stack_size,
- DEBUG_LOGFILE);
- exit(1);
-}
-
-/* XXX: currently only used for async signals (see signal.c) */
-CPUArchState *global_env;
-
-/* used to free thread contexts */
-TaskState *first_task_state;
-
-int main(int argc, char **argv)
-{
- const char *filename;
- const char *log_file = DEBUG_LOGFILE;
- const char *log_mask = NULL;
- struct target_pt_regs regs1, *regs = &regs1;
- TaskState ts1, *ts = &ts1;
- CPUArchState *env;
- int optind;
- short use_gdbstub = 0;
- const char *r;
- const char *cpu_model;
-
- if (argc <= 1)
- usage();
-
- module_call_init(MODULE_INIT_QOM);
-
- 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")) {
- if (optind >= argc) {
- break;
- }
- log_mask = argv[optind++];
- } else if (!strcmp(r, "D")) {
- if (optind >= argc) {
- break;
- }
- log_file = argv[optind++];
- } else if (!strcmp(r, "s")) {
- r = argv[optind++];
- stack_size = strtol(r, (char **)&r, 0);
- if (stack_size <= 0)
- usage();
- if (*r == 'M')
- stack_size *= 1024 * 1024;
- else if (*r == 'k' || *r == 'K')
- 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 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, "singlestep")) {
- singlestep = 1;
- } else
- {
- usage();
- }
- }
-
- /* init debug */
- cpu_set_log_filename(log_file);
- if (log_mask) {
- int mask;
- CPULogItem *item;
-
- mask = cpu_str_to_log_mask(log_mask);
- 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);
- }
-
- if (optind >= argc) {
- usage();
- }
- filename = argv[optind];
-
- /* Zero out regs */
- memset(regs, 0, sizeof(struct target_pt_regs));
-
- if (cpu_model == NULL) {
-#if defined(TARGET_I386)
-#ifdef TARGET_X86_64
- cpu_model = "qemu64";
-#else
- cpu_model = "qemu32";
-#endif
-#elif defined(TARGET_PPC)
-#ifdef TARGET_PPC64
- cpu_model = "970";
-#else
- cpu_model = "750";
-#endif
-#else
-#error unsupported CPU
-#endif
- }
- tcg_exec_init(0);
- cpu_exec_init_all();
- /* NOTE: we need to init the CPU at this stage to get
- qemu_host_page_size */
- env = cpu_init(cpu_model);
- cpu_state_reset(env);
-
- printf("Starting %s with qemu\n----------------\n", filename);
-
- commpage_init();
-
- if (mach_exec(filename, argv+optind, environ, regs) != 0) {
- printf("Error loading %s\n", filename);
- _exit(1);
- }
-
- syscall_init();
- signal_init();
- global_env = env;
-
- /* build Task State */
- memset(ts, 0, sizeof(TaskState));
- env->opaque = ts;
- ts->used = 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;
-
- /* darwin 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;
-
- /* Darwin LDT setup */
- /* 2 - User code segment
- 3 - User data segment
- 4 - User cthread */
- bzero(ldt_table, LDT_TABLE_SIZE * sizeof(ldt_table[0]));
- env->ldt.base = (uint32_t) ldt_table;
- env->ldt.limit = sizeof(ldt_table) - 1;
-
- write_dt(ldt_table + 2, 0, 0xfffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
- (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
- write_dt(ldt_table + 3, 0, 0xfffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
- (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
- write_dt(ldt_table + 4, 0, 0xfffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
- (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
-
- /* Darwin GDT setup.
- * has changed a lot between old Darwin/x86 (pre-Mac Intel) and Mac OS X/x86,
- now everything is done via int 0x81(mach) int 0x82 (thread) and sysenter/sysexit(unix) */
- bzero(gdt_table, sizeof(gdt_table));
- env->gdt.base = (uint32_t)gdt_table;
- env->gdt.limit = sizeof(gdt_table) - 1;
-
- /* Set up a back door to handle sysenter syscalls (unix) */
- char * syscallbackdoor = malloc(64);
- page_set_flags((int)syscallbackdoor, (int)syscallbackdoor + 64, PROT_EXEC | PROT_READ | PAGE_VALID);
-
- int i = 0;
- syscallbackdoor[i++] = 0xcd;
- syscallbackdoor[i++] = 0x90; /* int 0x90 */
- syscallbackdoor[i++] = 0x0F;
- syscallbackdoor[i++] = 0x35; /* sysexit */
-
- /* Darwin sysenter/sysexit setup */
- env->sysenter_cs = 0x1; //XXX
- env->sysenter_eip = (int)syscallbackdoor;
- env->sysenter_esp = (int)malloc(64);
-
- /* Darwin TSS setup
- This must match up with GDT[4] */
- env->tr.base = (uint32_t) tss;
- env->tr.limit = sizeof(tss) - 1;
- env->tr.flags = DESC_P_MASK | (0x9 << DESC_TYPE_SHIFT);
- stw(tss + 2, 0x10); // ss0 = 0x10 = GDT[2] = Kernel Data Segment
-
- /* Darwin interrupt setup */
- bzero(idt_table, sizeof(idt_table));
- env->idt.base = (uint32_t) 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);
- /* Syscalls are done via
- int 0x80 (unix) (rarely used)
- int 0x81 (mach)
- int 0x82 (thread)
- int 0x83 (diag) (not handled here)
- sysenter/sysexit (unix) -> we redirect that to int 0x90 */
- set_idt(0x79, 3); /* Commpage hack, here is our backdoor interrupt */
- set_idt(0x80, 3); /* Unix Syscall */
- set_idt(0x81, 3); /* Mach Syscalls */
- set_idt(0x82, 3); /* thread Syscalls */
-
- set_idt(0x90, 3); /* qemu-darwin-user's Unix syscalls backdoor */
-
-
- 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_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];
- }
- }
-#else
-#error unsupported target CPU
-#endif
-
- if (use_gdbstub) {
- printf("Waiting for gdb Connection on port 1234...\n");
- gdbserver_start (1234);
- gdb_handlesig(env, 0);
- }
-
- cpu_loop(env);
- /* never exits */
- return 0;
-}
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