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, 902 deletions

diff --git a/darwin-user/machload.c b/darwin-user/machload.c
deleted file mode 100644
index 26dd293686..0000000000
--- a/darwin-user/machload.c
+++ /dev/null
@@ -1,902 +0,0 @@
-/*
- *  Mach-O object file loading
- *
- *  Copyright (c) 2006 Pierre d'Herbemont
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-#include <stdio.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <unistd.h>
-#include <sys/mman.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "qemu.h"
-#include "disas.h"
-
-#include <mach-o/loader.h>
-#include <mach-o/fat.h>
-#include <mach-o/nlist.h>
-#include <mach-o/reloc.h>
-#include <mach-o/ppc/reloc.h>
-
-//#define DEBUG_MACHLOAD
-
-#ifdef DEBUG_MACHLOAD
-# define DPRINTF(...) do { qemu_log(__VA_ARGS__); printf(__VA_ARGS__); } while(0)
-#else
-# define DPRINTF(...) do { qemu_log(__VA_ARGS__); } while(0)
-#endif
-
-# define check_mach_header(x) (x.magic == MH_CIGAM)
-
-extern const char *interp_prefix;
-
-/* we don't have a good implementation for this */
-#define DONT_USE_DYLD_SHARED_MAP
-
-/* Pass extra arg to DYLD for debug */
-//#define ACTIVATE_DYLD_TRACE
-
-//#define OVERRIDE_DYLINKER
-
-#ifdef OVERRIDE_DYLINKER
-# ifdef TARGET_I386
-#  define DYLINKER_NAME "/Users/steg/qemu/tests/i386-darwin-env/usr/lib/dyld"
-# else
-#  define DYLINKER_NAME "/usr/lib/dyld"
-# endif
-#endif
-
-/* XXX: in an include */
-struct nlist_extended
-{
-    union {
-        char *n_name;
-        long  n_strx;
-    } n_un;
-    unsigned char n_type;
-    unsigned char n_sect;
-    short st_desc;
-    unsigned long st_value;
-    unsigned long st_size;
-};
-
-/* Print symbols in gdb */
-void *macho_text_sect = 0;
-int   macho_offset = 0;
-
-int load_object(const char *filename, struct target_pt_regs * regs, void ** mh);
-
-#ifdef TARGET_I386
-typedef struct mach_i386_thread_state {
-    unsigned int    eax;
-    unsigned int    ebx;
-    unsigned int    ecx;
-    unsigned int    edx;
-    unsigned int    edi;
-    unsigned int    esi;
-    unsigned int    ebp;
-    unsigned int    esp;
-    unsigned int    ss;
-    unsigned int    eflags;
-    unsigned int    eip;
-    unsigned int    cs;
-    unsigned int    ds;
-    unsigned int    es;
-    unsigned int    fs;
-    unsigned int    gs;
-} mach_i386_thread_state_t;
-
-void bswap_i386_thread_state(struct mach_i386_thread_state *ts)
-{
-    bswap32s((uint32_t*)&ts->eax);
-    bswap32s((uint32_t*)&ts->ebx);
-    bswap32s((uint32_t*)&ts->ecx);
-    bswap32s((uint32_t*)&ts->edx);
-    bswap32s((uint32_t*)&ts->edi);
-    bswap32s((uint32_t*)&ts->esi);
-    bswap32s((uint32_t*)&ts->ebp);
-    bswap32s((uint32_t*)&ts->esp);
-    bswap32s((uint32_t*)&ts->ss);
-    bswap32s((uint32_t*)&ts->eflags);
-    bswap32s((uint32_t*)&ts->eip);
-    bswap32s((uint32_t*)&ts->cs);
-    bswap32s((uint32_t*)&ts->ds);
-    bswap32s((uint32_t*)&ts->es);
-    bswap32s((uint32_t*)&ts->fs);
-    bswap32s((uint32_t*)&ts->gs);
-}
-#define target_thread_state mach_i386_thread_state
-#define TARGET_CPU_TYPE CPU_TYPE_I386
-#define TARGET_CPU_NAME "i386"
-#endif
-
-#ifdef TARGET_PPC
-struct mach_ppc_thread_state {
-    unsigned int srr0;      /* Instruction address register (PC) */
-    unsigned int srr1;    /* Machine state register (supervisor) */
-    unsigned int r0;
-    unsigned int r1;
-    unsigned int r2;
-    unsigned int r3;
-    unsigned int r4;
-    unsigned int r5;
-    unsigned int r6;
-    unsigned int r7;
-    unsigned int r8;
-    unsigned int r9;
-    unsigned int r10;
-    unsigned int r11;
-    unsigned int r12;
-    unsigned int r13;
-    unsigned int r14;
-    unsigned int r15;
-    unsigned int r16;
-    unsigned int r17;
-    unsigned int r18;
-    unsigned int r19;
-    unsigned int r20;
-    unsigned int r21;
-    unsigned int r22;
-    unsigned int r23;
-    unsigned int r24;
-    unsigned int r25;
-    unsigned int r26;
-    unsigned int r27;
-    unsigned int r28;
-    unsigned int r29;
-    unsigned int r30;
-    unsigned int r31;
-
-    unsigned int cr;        /* Condition register */
-    unsigned int xer;    /* User's integer exception register */
-    unsigned int lr;    /* Link register */
-    unsigned int ctr;    /* Count register */
-    unsigned int mq;    /* MQ register (601 only) */
-
-    unsigned int vrsave;    /* Vector Save Register */
-};
-
-void bswap_ppc_thread_state(struct mach_ppc_thread_state *ts)
-{
-    bswap32s((uint32_t*)&ts->srr0);
-    bswap32s((uint32_t*)&ts->srr1);
-    bswap32s((uint32_t*)&ts->r0);
-    bswap32s((uint32_t*)&ts->r1);
-    bswap32s((uint32_t*)&ts->r2);
-    bswap32s((uint32_t*)&ts->r3);
-    bswap32s((uint32_t*)&ts->r4);
-    bswap32s((uint32_t*)&ts->r5);
-    bswap32s((uint32_t*)&ts->r6);
-    bswap32s((uint32_t*)&ts->r7);
-    bswap32s((uint32_t*)&ts->r8);
-    bswap32s((uint32_t*)&ts->r9);
-    bswap32s((uint32_t*)&ts->r10);
-    bswap32s((uint32_t*)&ts->r11);
-    bswap32s((uint32_t*)&ts->r12);
-    bswap32s((uint32_t*)&ts->r13);
-    bswap32s((uint32_t*)&ts->r14);
-    bswap32s((uint32_t*)&ts->r15);
-    bswap32s((uint32_t*)&ts->r16);
-    bswap32s((uint32_t*)&ts->r17);
-    bswap32s((uint32_t*)&ts->r18);
-    bswap32s((uint32_t*)&ts->r19);
-    bswap32s((uint32_t*)&ts->r20);
-    bswap32s((uint32_t*)&ts->r21);
-    bswap32s((uint32_t*)&ts->r22);
-    bswap32s((uint32_t*)&ts->r23);
-    bswap32s((uint32_t*)&ts->r24);
-    bswap32s((uint32_t*)&ts->r25);
-    bswap32s((uint32_t*)&ts->r26);
-    bswap32s((uint32_t*)&ts->r27);
-    bswap32s((uint32_t*)&ts->r28);
-    bswap32s((uint32_t*)&ts->r29);
-    bswap32s((uint32_t*)&ts->r30);
-    bswap32s((uint32_t*)&ts->r31);
-
-    bswap32s((uint32_t*)&ts->cr);
-    bswap32s((uint32_t*)&ts->xer);
-    bswap32s((uint32_t*)&ts->lr);
-    bswap32s((uint32_t*)&ts->ctr);
-    bswap32s((uint32_t*)&ts->mq);
-
-    bswap32s((uint32_t*)&ts->vrsave);
-}
-
-#define target_thread_state mach_ppc_thread_state
-#define TARGET_CPU_TYPE CPU_TYPE_POWERPC
-#define TARGET_CPU_NAME "PowerPC"
-#endif
-
-struct target_thread_command {
-    unsigned long    cmd;    /* LC_THREAD or  LC_UNIXTHREAD */
-    unsigned long    cmdsize;    /* total size of this command */
-    unsigned long flavor;    /* flavor of thread state */
-    unsigned long count;        /* count of longs in thread state */
-    struct target_thread_state state;  /* thread state for this flavor */
-};
-
-void bswap_tc(struct target_thread_command *tc)
-{
-    bswap32s((uint32_t*)(&tc->flavor));
-    bswap32s((uint32_t*)&tc->count);
-#if defined(TARGET_I386)
-    bswap_i386_thread_state(&tc->state);
-#elif defined(TARGET_PPC)
-    bswap_ppc_thread_state(&tc->state);
-#else
-# error unknown TARGET_CPU_TYPE
-#endif
-}
-
-void bswap_mh(struct mach_header *mh)
-{
-    bswap32s((uint32_t*)(&mh->magic));
-    bswap32s((uint32_t*)&mh->cputype);
-    bswap32s((uint32_t*)&mh->cpusubtype);
-    bswap32s((uint32_t*)&mh->filetype);
-    bswap32s((uint32_t*)&mh->ncmds);
-    bswap32s((uint32_t*)&mh->sizeofcmds);
-    bswap32s((uint32_t*)&mh->flags);
-}
-
-void bswap_lc(struct load_command *lc)
-{
-    bswap32s((uint32_t*)&lc->cmd);
-    bswap32s((uint32_t*)&lc->cmdsize);
-}
-
-
-void bswap_fh(struct fat_header *fh)
-{
-    bswap32s((uint32_t*)&fh->magic);
-    bswap32s((uint32_t*)&fh->nfat_arch);
-}
-
-void bswap_fa(struct fat_arch *fa)
-{
-    bswap32s((uint32_t*)&fa->cputype);
-    bswap32s((uint32_t*)&fa->cpusubtype);
-    bswap32s((uint32_t*)&fa->offset);
-    bswap32s((uint32_t*)&fa->size);
-    bswap32s((uint32_t*)&fa->align);
-}
-
-void bswap_segcmd(struct segment_command *sc)
-{
-    bswap32s((uint32_t*)&sc->vmaddr);
-    bswap32s((uint32_t*)&sc->vmsize);
-    bswap32s((uint32_t*)&sc->fileoff);
-    bswap32s((uint32_t*)&sc->filesize);
-    bswap32s((uint32_t*)&sc->maxprot);
-    bswap32s((uint32_t*)&sc->initprot);
-    bswap32s((uint32_t*)&sc->nsects);
-    bswap32s((uint32_t*)&sc->flags);
-}
-
-void bswap_symtabcmd(struct symtab_command *stc)
-{
-    bswap32s((uint32_t*)&stc->cmd);
-    bswap32s((uint32_t*)&stc->cmdsize);
-    bswap32s((uint32_t*)&stc->symoff);
-    bswap32s((uint32_t*)&stc->nsyms);
-    bswap32s((uint32_t*)&stc->stroff);
-    bswap32s((uint32_t*)&stc->strsize);
-}
-
-void bswap_sym(struct nlist *n)
-{
-    bswap32s((uint32_t*)&n->n_un.n_strx);
-    bswap16s((uint16_t*)&n->n_desc);
-    bswap32s((uint32_t*)&n->n_value);
-}
-
-int load_thread(struct mach_header *mh, struct target_thread_command *tc, struct target_pt_regs * regs, int fd, int mh_pos, int need_bswap)
-{
-    int entry;
-    if(need_bswap)
-        bswap_tc(tc);
-#if defined(TARGET_I386)
-    entry = tc->state.eip;
-    DPRINTF(" eax 0x%.8x\n ebx 0x%.8x\n ecx 0x%.8x\n edx 0x%.8x\n edi 0x%.8x\n esi 0x%.8x\n ebp 0x%.8x\n esp 0x%.8x\n ss 0x%.8x\n eflags 0x%.8x\n eip 0x%.8x\n cs 0x%.8x\n ds 0x%.8x\n es 0x%.8x\n fs 0x%.8x\n gs 0x%.8x\n",
-            tc->state.eax, tc->state.ebx, tc->state.ecx, tc->state.edx, tc->state.edi, tc->state.esi, tc->state.ebp,
-            tc->state.esp, tc->state.ss, tc->state.eflags, tc->state.eip, tc->state.cs, tc->state.ds, tc->state.es,
-            tc->state.fs, tc->state.gs );
-#define reg_copy(reg)   regs->reg = tc->state.reg
-    if(regs)
-    {
-        reg_copy(eax);
-        reg_copy(ebx);
-        reg_copy(ecx);
-        reg_copy(edx);
-
-        reg_copy(edi);
-        reg_copy(esi);
-
-        reg_copy(ebp);
-        reg_copy(esp);
-
-        reg_copy(eflags);
-        reg_copy(eip);
-    /*
-        reg_copy(ss);
-        reg_copy(cs);
-        reg_copy(ds);
-        reg_copy(es);
-        reg_copy(fs);
-        reg_copy(gs);*/
-    }
-#undef reg_copy
-#elif defined(TARGET_PPC)
-    entry =  tc->state.srr0;
-#endif
-    DPRINTF("load_thread: entry 0x%x\n", entry);
-    return entry;
-}
-
-int load_dylinker(struct mach_header *mh, struct dylinker_command *dc, int fd, int mh_pos, int need_bswap)
-{
-    int size;
-    char * dylinker_name;
-    size = dc->cmdsize - sizeof(struct dylinker_command);
-
-    if(need_bswap)
-        dylinker_name = (char*)(bswap_32(dc->name.offset)+(int)dc);
-    else
-        dylinker_name = (char*)((dc->name.offset)+(int)dc);
-
-#ifdef OVERRIDE_DYLINKER
-    dylinker_name = DYLINKER_NAME;
-#else
-    if(asprintf(&dylinker_name, "%s%s", interp_prefix, dylinker_name) == -1)
-        qerror("can't allocate the new dylinker name\n");
-#endif
-
-    DPRINTF("dylinker_name %s\n", dylinker_name);
-    return load_object(dylinker_name, NULL, NULL);
-}
-
-int load_segment(struct mach_header *mh, struct segment_command *sc, int fd, int mh_pos, int need_bswap, int fixed, int slide)
-{
-    unsigned long addr = sc->vmaddr;
-    unsigned long size = sc->filesize;
-    unsigned long error = 0;
-
-    if(need_bswap)
-        bswap_segcmd(sc);
-
-    if(sc->vmaddr == 0)
-    {
-        DPRINTF("load_segment: sc->vmaddr == 0 returning\n");
-        return -1;
-    }
-
-    if (strcmp(sc->segname, "__PAGEZERO") == 0)
-    {
-        DPRINTF("load_segment: __PAGEZERO returning\n");
-        return -1;
-    }
-
-    /* Right now mmap memory */
-    /* XXX: should check to see that the space is free, because MAP_FIXED is dangerous */
-    DPRINTF("load_segment: mmaping %s to 0x%x-(0x%x|0x%x) + 0x%x\n", sc->segname, sc->vmaddr, sc->filesize, sc->vmsize, slide);
-
-    if(sc->filesize > 0)
-    {
-        int opt = 0;
-
-        if(fixed)
-            opt |= MAP_FIXED;
-
-        DPRINTF("sc->vmaddr 0x%x slide 0x%x add 0x%x\n", slide, sc->vmaddr, sc->vmaddr+slide);
-
-        addr = target_mmap(sc->vmaddr+slide, sc->filesize,  sc->initprot, opt, fd, mh_pos + sc->fileoff);
-
-        if(addr==-1)
-            qerror("load_segment: can't mmap at 0x%x\n", sc->vmaddr+slide);
-
-        error = addr-sc->vmaddr;
-    }
-    else
-    {
-        addr = sc->vmaddr+slide;
-        error = slide;
-    }
-
-    if(sc->vmsize > sc->filesize)
-    {
-        addr += sc->filesize;
-        size = sc->vmsize-sc->filesize;
-        addr = target_mmap(addr, size, sc->initprot, MAP_ANONYMOUS | MAP_FIXED, -1, 0);
-        if(addr==-1)
-            qerror("load_segment: can't mmap at 0x%x\n", sc->vmaddr+slide);
-    }
-
-    return error;
-}
-
-void *load_data(int fd, long offset, unsigned int size)
-{
-    char *data;
-
-    data = malloc(size);
-    if (!data)
-        return NULL;
-    lseek(fd, offset, SEEK_SET);
-    if (read(fd, data, size) != size) {
-        free(data);
-        return NULL;
-    }
-    return data;
-}
-
-/* load a mach-o object file */
-int load_object(const char *filename, struct target_pt_regs * regs, void ** mh)
-{
-    int need_bswap = 0;
-    int entry_point = 0;
-    int dyld_entry_point = 0;
-    int slide, mmapfixed;
-    int fd;
-    struct load_command *lcmds, *lc;
-    int is_fat = 0;
-    unsigned int i, magic;
-    int mach_hdr_pos = 0;
-    struct mach_header mach_hdr;
-
-    /* for symbol lookup with -d flag. */
-    struct symtab_command *    symtabcmd = 0;
-    struct nlist_extended *symtab, *sym;
-    struct nlist     *symtab_std, *syment;
-    char            *strtab;
-
-    fd = open(filename, O_RDONLY);
-    if (fd < 0)
-        qerror("can't open file '%s'", filename);
-
-    /* Read magic header.  */
-    if (read(fd, &magic, sizeof (magic)) != sizeof (magic))
-        qerror("unable to read Magic of '%s'", filename);
-
-    /* Check Mach identification.  */
-    if(magic == MH_MAGIC)
-    {
-        is_fat = 0;
-        need_bswap = 0;
-    } else if (magic == MH_CIGAM)
-    {
-        is_fat = 0;
-        need_bswap = 1;
-    } else if (magic == FAT_MAGIC)
-    {
-        is_fat = 1;
-        need_bswap = 0;
-    } else if (magic == FAT_CIGAM)
-    {
-        is_fat = 1;
-        need_bswap = 1;
-    }
-    else
-        qerror("Not a Mach-O file.", filename);
-
-    DPRINTF("loading %s %s...\n", filename, is_fat ? "[FAT]": "[REGULAR]");
-    if(is_fat)
-    {
-        int found = 0;
-        struct fat_header fh;
-        struct fat_arch *fa;
-
-        lseek(fd, 0, SEEK_SET);
-
-        /* Read Fat header.  */
-        if (read(fd, &fh, sizeof (fh)) != sizeof (fh))
-            qerror("unable to read file header");
-
-        if(need_bswap)
-            bswap_fh(&fh);
-
-        /* Read Fat Arch.  */
-        fa = malloc(sizeof(struct fat_arch)*fh.nfat_arch);
-
-        if (read(fd, fa, sizeof(struct fat_arch)*fh.nfat_arch) != sizeof(struct fat_arch)*fh.nfat_arch)
-            qerror("unable to read file header");
-
-        for( i = 0; i < fh.nfat_arch; i++, fa++)
-        {
-            if(need_bswap)
-                bswap_fa(fa);
-            if(fa->cputype == TARGET_CPU_TYPE)
-            {
-                mach_hdr_pos = fa->offset;
-                lseek(fd, mach_hdr_pos, SEEK_SET);
-
-                /* Read Mach header.  */
-
-                if (read(fd, &mach_hdr, sizeof(struct mach_header)) != sizeof (struct mach_header))
-                    qerror("unable to read file header");
-
-                if(mach_hdr.magic == MH_MAGIC)
-                    need_bswap = 0;
-                else if (mach_hdr.magic == MH_CIGAM)
-                    need_bswap = 1;
-                else
-                    qerror("Invalid mach header in Fat Mach-O File");
-                found = 1;
-                break;
-            }
-        }
-        if(!found)
-            qerror("%s: No %s CPU found in FAT Header", filename, TARGET_CPU_NAME);
-    }
-    else
-    {
-        lseek(fd, 0, SEEK_SET);
-        /* Read Mach header */
-        if (read(fd, &mach_hdr, sizeof (mach_hdr)) != sizeof (mach_hdr))
-            qerror("%s: unable to read file header", filename);
-    }
-
-    if(need_bswap)
-        bswap_mh(&mach_hdr);
-
-    if ((mach_hdr.cputype) != TARGET_CPU_TYPE)
-        qerror("%s: Unsupported CPU 0x%x (only 0x%x(%s) supported)", filename, mach_hdr.cputype, TARGET_CPU_TYPE, TARGET_CPU_NAME);
-
-
-    switch(mach_hdr.filetype)
-    {
-        case MH_EXECUTE:  break;
-        case MH_FVMLIB:
-        case MH_DYLIB:
-        case MH_DYLINKER: break;
-        default:
-            qerror("%s: Unsupported Mach type (0x%x)", filename, mach_hdr.filetype);
-    }
-
-    /* read segment headers */
-    lcmds = malloc(mach_hdr.sizeofcmds);
-
-    if(read(fd, lcmds, mach_hdr.sizeofcmds) != mach_hdr.sizeofcmds)
-            qerror("%s: unable to read load_command", filename);
-    slide = 0;
-    mmapfixed = 0;
-    for(i=0, lc = lcmds; i < (mach_hdr.ncmds) ; i++)
-    {
-
-        if(need_bswap)
-            bswap_lc(lc);
-        switch(lc->cmd)
-        {
-            case LC_SEGMENT:
-                /* The main_exe can't be relocated */
-                if(mach_hdr.filetype == MH_EXECUTE)
-                    mmapfixed = 1;
-
-                slide = load_segment(&mach_hdr, (struct segment_command*)lc, fd, mach_hdr_pos, need_bswap, mmapfixed, slide);
-
-                /* other segment must be mapped according to slide exactly, if load_segment did something */
-                if(slide != -1)
-                    mmapfixed = 1;
-                else
-                    slide = 0; /* load_segment didn't map the segment */
-
-                if(mach_hdr.filetype == MH_EXECUTE && slide != 0)
-                    qerror("%s: Warning executable can't be mapped at the right address (offset: 0x%x)\n", filename, slide);
-
-                if(strcmp(((struct segment_command*)(lc))->segname, "__TEXT") == 0)
-                {
-                    /* Text section */
-                    if(mach_hdr.filetype == MH_EXECUTE)
-                    {
-                        /* return the mach_header */
-                        *mh = (void*)(((struct segment_command*)(lc))->vmaddr + slide);
-                    }
-                    else
-                    {
-                        /* it is dyld save the section for gdb, we will be interested in dyld symbol
-                           while debuging */
-                        macho_text_sect = (void*)(((struct segment_command*)(lc))->vmaddr + slide);
-                        macho_offset = slide;
-                    }
-                }
-                break;
-            case LC_LOAD_DYLINKER:
-                dyld_entry_point = load_dylinker( &mach_hdr, (struct dylinker_command*)lc, fd, mach_hdr_pos, need_bswap );
-                break;
-            case LC_LOAD_DYLIB:
-                /* dyld will do that for us */
-                break;
-            case LC_THREAD:
-            case LC_UNIXTHREAD:
-                {
-                struct target_pt_regs * _regs;
-                if(mach_hdr.filetype == MH_DYLINKER)
-                    _regs = regs;
-                else
-                    _regs = 0;
-                entry_point = load_thread( &mach_hdr, (struct target_thread_command*)lc, _regs, fd, mach_hdr_pos, need_bswap );
-                }
-                break;
-            case LC_SYMTAB:
-                /* Save the symtab and strtab */
-                symtabcmd = (struct symtab_command *)lc;
-                break;
-            case LC_ID_DYLINKER:
-            case LC_ID_DYLIB:
-            case LC_UUID:
-            case LC_DYSYMTAB:
-            case LC_TWOLEVEL_HINTS:
-            case LC_PREBIND_CKSUM:
-            case LC_SUB_LIBRARY:
-                break;
-            default: fprintf(stderr, "warning: unknown command 0x%x in '%s'\n", lc->cmd, filename);
-        }
-        lc = (struct load_command*)((int)(lc)+(lc->cmdsize));
-    }
-
-    if(symtabcmd)
-    {
-        if(need_bswap)
-            bswap_symtabcmd(symtabcmd);
-
-        symtab_std = load_data(fd, symtabcmd->symoff+mach_hdr_pos, symtabcmd->nsyms * sizeof(struct nlist));
-        strtab = load_data(fd, symtabcmd->stroff+mach_hdr_pos, symtabcmd->strsize);
-
-        symtab = malloc(sizeof(struct nlist_extended) * symtabcmd->nsyms);
-
-        if(need_bswap)
-        {
-            for(i = 0, syment = symtab_std; i < symtabcmd->nsyms; i++, syment++)
-                bswap_sym(syment);
-        }
-
-        for(i = 0, sym = symtab, syment = symtab_std; i < symtabcmd->nsyms; i++, sym++, syment++)
-        {
-            struct nlist *sym_follow, *sym_next = 0;
-            unsigned int j;
-            memset(sym, 0, sizeof(*sym));
-
-            sym->n_type = syment->n_type;
-            if ( syment->n_type & N_STAB ) /* Debug symbols are skipped */
-                continue;
-
-            memcpy(sym, syment, sizeof(*syment));
-
-            /* Find the following symbol in order to get the current symbol size */
-            for(j = 0, sym_follow = symtab_std; j < symtabcmd->nsyms; j++, sym_follow++) {
-                if ( sym_follow->n_type & N_STAB || !(sym_follow->n_value > sym->st_value))
-                    continue;
-                if(!sym_next) {
-                    sym_next = sym_follow;
-                    continue;
-                }
-                if(!(sym_next->n_value > sym_follow->n_value))
-                    continue;
-                sym_next = sym_follow;
-            }
-            if(sym_next)
-                sym->st_size = sym_next->n_value - sym->st_value;
-            else
-                sym->st_size = 10; /* XXX: text_sec_hdr->size + text_sec_hdr->offset - sym->st_value; */
-
-            sym->st_value += slide;
-        }
-
-        free((void*)symtab_std);
-
-        {
-            DPRINTF("saving symtab of %s (%d symbol(s))\n", filename, symtabcmd->nsyms);
-            struct syminfo *s;
-            s = malloc(sizeof(*s));
-            s->disas_symtab = symtab;
-            s->disas_strtab = strtab;
-            s->disas_num_syms = symtabcmd->nsyms;
-            s->next = syminfos;
-            syminfos = s;
-        }
-    }
-    close(fd);
-    if(mach_hdr.filetype == MH_EXECUTE && dyld_entry_point)
-        return dyld_entry_point;
-    else
-        return entry_point+slide;
-}
-
-extern unsigned long stack_size;
-
-unsigned long setup_arg_pages(void * mh, char ** argv, char ** env)
-{
-    unsigned long stack_base, error, size;
-    int i;
-    int * stack;
-    int argc, envc;
-
-    /* Create enough stack to hold everything.  If we don't use
-     * it for args, we'll use it for something else...
-     */
-    size = stack_size;
-
-    error = target_mmap(0,
-                        size + qemu_host_page_size,
-                        PROT_READ | PROT_WRITE,
-                        MAP_PRIVATE | MAP_ANONYMOUS,
-                        -1, 0);
-    if (error == -1)
-        qerror("stk mmap");
-
-    /* we reserve one extra page at the top of the stack as guard */
-    target_mprotect(error + size, qemu_host_page_size, PROT_NONE);
-
-    stack_base = error + size;
-    stack = (void*)stack_base;
-/*
- *    | STRING AREA |
- *    +-------------+
- *    |      0      |
-*    +-------------+
- *    |  apple[n]   |
- *    +-------------+
- *           :
- *    +-------------+
- *    |  apple[0]   |
- *    +-------------+
- *    |      0      |
- *    +-------------+
- *    |    env[n]   |
- *    +-------------+
- *           :
- *           :
- *    +-------------+
- *    |    env[0]   |
- *    +-------------+
- *    |      0      |
- *    +-------------+
- *    | arg[argc-1] |
- *    +-------------+
- *           :
- *           :
- *    +-------------+
- *    |    arg[0]   |
- *    +-------------+
- *    |     argc    |
- *    +-------------+
- * sp->    |      mh     | address of where the a.out's file offset 0 is in memory
- *    +-------------+
-*/
-    /* Construct the stack Stack grows down */
-    stack--;
-
-    /* XXX: string should go up there */
-
-    *stack = 0;
-    stack--;
-
-    /* Push the absolute path of our executable */
-    DPRINTF("pushing apple %s (0x%x)\n", (char*)argv[0], (int)argv[0]);
-    stl(stack, (int) argv[0]);
-
-    stack--;
-
-    stl(stack, 0);
-    stack--;
-
-    /* Get envc */
-    for(envc = 0; env[envc]; envc++);
-
-    for(i = envc-1; i >= 0; i--)
-    {
-        DPRINTF("pushing env %s (0x%x)\n", (char*)env[i], (int)env[i]);
-        stl(stack, (int)env[i]);
-        stack--;
-
-        /* XXX: remove that when string will be on top of the stack */
-        page_set_flags((int)env[i], (int)(env[i]+strlen(env[i])), PROT_READ | PAGE_VALID);
-    }
-
-    /* Add on the stack the interp_prefix chosen if so */
-    if(interp_prefix[0])
-    {
-        char *dyld_root;
-        asprintf(&dyld_root, "DYLD_ROOT_PATH=%s", interp_prefix);
-        page_set_flags((int)dyld_root, (int)(dyld_root+strlen(interp_prefix)+1), PROT_READ | PAGE_VALID);
-
-        stl(stack, (int)dyld_root);
-        stack--;
-    }
-
-#ifdef DONT_USE_DYLD_SHARED_MAP
-    {
-        char *shared_map_mode;
-        asprintf(&shared_map_mode, "DYLD_SHARED_REGION=avoid");
-        page_set_flags((int)shared_map_mode, (int)(shared_map_mode+strlen(shared_map_mode)+1), PROT_READ | PAGE_VALID);
-
-        stl(stack, (int)shared_map_mode);
-        stack--;
-    }
-#endif
-
-#ifdef ACTIVATE_DYLD_TRACE
-    char * extra_env_static[] = {"DYLD_DEBUG_TRACE=yes",
-    "DYLD_PREBIND_DEBUG=3", "DYLD_UNKNOW_TRACE=yes",
-    "DYLD_PRINT_INITIALIZERS=yes",
-    "DYLD_PRINT_SEGMENTS=yes", "DYLD_PRINT_REBASINGS=yes", "DYLD_PRINT_BINDINGS=yes", "DYLD_PRINT_INITIALIZERS=yes", "DYLD_PRINT_WARNINGS=yes" };
-
-    char ** extra_env = malloc(sizeof(extra_env_static));
-    bcopy(extra_env_static, extra_env, sizeof(extra_env_static));
-    page_set_flags((int)extra_env, (int)((void*)extra_env+sizeof(extra_env_static)), PROT_READ | PAGE_VALID);
-
-    for(i = 0; i<9; i++)
-    {
-        DPRINTF("pushing (extra) env %s (0x%x)\n", (char*)extra_env[i], (int)extra_env[i]);
-        stl(stack, (int) extra_env[i]);
-        stack--;
-    }
-#endif
-
-    stl(stack, 0);
-    stack--;
-
-    /* Get argc */
-    for(argc = 0; argv[argc]; argc++);
-
-    for(i = argc-1; i >= 0; i--)
-    {
-        DPRINTF("pushing arg %s (0x%x)\n", (char*)argv[i], (int)argv[i]);
-        stl(stack, (int) argv[i]);
-        stack--;
-
-        /* XXX: remove that when string will be on top of the stack */
-        page_set_flags((int)argv[i], (int)(argv[i]+strlen(argv[i])), PROT_READ | PAGE_VALID);
-    }
-
-    DPRINTF("pushing argc %d\n", argc);
-    stl(stack, argc);
-    stack--;
-
-    DPRINTF("pushing mh 0x%x\n", (int)mh);
-    stl(stack, (int) mh);
-
-    /* Stack points on the mh */
-    return (unsigned long)stack;
-}
-
-int mach_exec(const char * filename, char ** argv, char ** envp,
-             struct target_pt_regs * regs)
-{
-    int entrypoint, stack;
-    void * mh; /* the Mach Header that will be  used by dyld */
-
-    DPRINTF("mach_exec at 0x%x\n", (int)mach_exec);
-
-    entrypoint = load_object(filename, regs, &mh);
-    stack = setup_arg_pages(mh, argv, envp);
-#if defined(TARGET_I386)
-    regs->eip = entrypoint;
-    regs->esp = stack;
-#elif defined(TARGET_PPC)
-    regs->nip = entrypoint;
-    regs->gpr[1] = stack;
-#endif
-    DPRINTF("mach_exec returns eip set to 0x%x esp 0x%x mh 0x%x\n", entrypoint, stack, (int)mh);
-
-    if(!entrypoint)
-        qerror("%s: no entry point!\n", filename);
-
-    return 0;
-}