Drop darwin-user

It's been orphaned, not compiling for a long time and despite Apple's
drop of their Rosetta ppc emulation technology with Mac OS X Lion no one
has stepped up to fix it.

Testing necessary changes wrt QOM'ification thus is impossible, so we
might as well remove it completely.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

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;
-}