Exemplo n.º 1
0
NXStream *NXMapFile(const char *name, int mode)
{
    int             fd;
    char           *buf;
    struct stat     info;
    NXStream 	   *s = NULL;

    fd = open(name, O_RDONLY, 0666);
    if (fd >= 0) {
	if (fstat(fd, &info) >= 0) {
	    if (info.st_size > 0 || (info.st_mode & S_IFMT) == S_IFDIR) {
		if (map_fd(fd, 0, (vm_offset_t *)&buf, TRUE, (vm_size_t)info.st_size) ==
								KERN_SUCCESS) {
		    s = NXOpenMemory(buf, info.st_size, mode);
		    s->flags &= ~NX_USER_OWNS_BUF;
		}
	    } else {
		s = NXOpenMemory(NULL, 0, mode);
	    }
	}
	if (close(fd) < 0) {
	    NXCloseMemory(s, NX_FREEBUFFER);
	    s = NULL;
	}
    }
    return s;
}
Exemplo n.º 2
0
/*	These are my mach based versions, untested and probably bad ...
*/
caddr_t my_mmap(caddr_t addr, size_t len, int prot, int flags,
          int fildes, off_t off)
{
	kern_return_t ret_val;
	
	/*	First map ...
	*/
	ret_val = map_fd ( fildes, 					/* fd				*/
	                  (vm_offset_t) off,		/* offset			*/
					  (vm_offset_t*)&addr,		/* address			*/
					  TRUE, 					/* find_space		*/
					  (vm_size_t) len);			/* size				*/

	if (ret_val != KERN_SUCCESS) {
    	mach_error("Error calling map_fd() in mmap", ret_val );
		return (caddr_t)0;
	}
	
	/*	... then protect (this is probably bad)
	*/
	ret_val = vm_protect( task_self(),			/* target_task 		*/
						 (vm_address_t)addr,	/* address			*/
						 (vm_size_t) len,		/* size 			*/
						 FALSE,					/* set_maximum		*/
						 (vm_prot_t) prot);		/* new_protection	*/
	if (ret_val != KERN_SUCCESS) {
		mach_error("vm_protect in mmap()", ret_val );
		return (caddr_t)0;
	}
	
	return addr;
}
Exemplo n.º 3
0
static void *map_it( const char *path, int fd, void *map_at, size_t len )
{
  kern_return_t rc;
  vm_offset_t addr;

  addr = (vm_offset_t)map_at;

  rc = vm_allocate( task_self(), &addr, len, /* anywhere */ FALSE );
  if (rc != KERN_SUCCESS)
    {
      mach_error( "vm_allocate", rc );
      fprintf( stderr, "%s: could not map at %08lx\n", 
	       path, (unsigned long)map_at );
      return NULL;
    }

  rc = map_fd( fd, 0, &addr, /*find_space*/ FALSE, len );
  if (rc != KERN_SUCCESS)
    {
      mach_error( "map_fd", rc );
      fprintf( stderr, "%s: could not map at %08lx\n", 
	       path, (unsigned long)map_at );
      return NULL;
    }
  return (void *)addr;
}
Exemplo n.º 4
0
Arquivo: replace.c Projeto: aosm/boot
main(int argc, char **argv)
{
    int c, fd, ofd, filesize;
    kern_return_t r;
    char *infile, *outfile, *memfile, *oldstring, *os, *newstring;
    struct stat statbuf;
    
    if (argc != 5)
	usage();
    
    infile = argv[1];
    outfile = argv[2];
    fd = open(infile, O_RDONLY);
    if (fd < 0) {
	perror("open infile");
	exit(1);
    }
    if (fstat(fd, &statbuf) < 0) {
	perror("stat infile");
	exit(1);
    }
    ofd = open(outfile, O_TRUNC|O_RDWR|O_CREAT, 0644);
    if (ofd < 0) {
	perror("open outfile");
	exit(1);
    }
    filesize = statbuf.st_size;
    oldstring = strFromQuotedStr(argv[3]);
    newstring = strFromQuotedStr(argv[4]);
    if (strlen(newstring) > strlen(oldstring)) {
	fprintf(stderr, "Warning: new string is bigger than old string.\n");
    }
    r = map_fd(fd, (vm_offset_t)0, (vm_offset_t *)&memfile, TRUE,
	   (vm_size_t)filesize);
    
    if (r != KERN_SUCCESS) {
	mach_error("Error calling map_fd()", r);
	exit(1);
    } else {
	os = (char *)strnstr(memfile, oldstring, filesize);
	if (os == NULL) {
	    fprintf(stderr, "String not found\n");
	    exit(1);
	}
	while (*newstring)
	    *os++ = *newstring++;
	*os++ = *newstring++;
	lseek(fd, 0, 0);
	c = write(ofd, memfile, filesize);
	if (c < filesize) {
	    perror("write outfile");
	    exit(2);
	}
	exit(0);
    }
}
Exemplo n.º 5
0
rs_bool mapf_open( const char *path )
{
kern_return_t rc;

    if (strncmp(path,"sect:",5) == 0)
    {
    char *s, name[1000];
    
	strcpy( name, path+5 );
	s = strchr( name, ':' );
	*s++ = 0;
	
	image_file = -1;
	image_mapping_addr = 
	    (vm_address_t)getsectdata( name, s, (int *)&image_mapping_size );
	if (!image_mapping_addr)
	{
	    fprintf( stderr, "could not map segment %s, section %s\n",
	    			name, s );
	    return NO;
	}
    }
    else
    {
	image_file = open( path, O_RDONLY, 0 );
	if (image_file < 0)
	{
	    perror( path );
	    return NO;
	}
	image_mapping_size = lseek( image_file, 0L, SEEK_END );
	
	rc = map_fd( image_file, 
		    (vm_offset_t)0, 
		    &image_mapping_addr, 
		    /* find_space */ TRUE,
		    image_mapping_size );
	if (rc != KERN_SUCCESS)
	{
	    fprintf( stderr, "could not map file: %s\n", path );
	    close( image_file );
	    return NO;
	}
    }
    image_mapping_ptr = (void *)image_mapping_addr;
    return YES;
}
Exemplo n.º 6
0
__private_extern__ KXKextManagerError
readFile(const char *path, vm_offset_t * objAddr, vm_size_t * objSize)
{
    KXKextManagerError err = kKXKextManagerErrorFileAccess;
    int fd;
    struct stat stat_buf;

    *objAddr = 0;
    *objSize = 0;

    do
    {
        if((fd = open(path, O_RDONLY)) == -1)
	    continue;

	if(fstat(fd, &stat_buf) == -1)
	    continue;

        if (0 == (stat_buf.st_mode & S_IFREG)) 
            continue;

	*objSize = stat_buf.st_size;

	if( KERN_SUCCESS != map_fd(fd, 0, objAddr, TRUE, *objSize)) {
            *objAddr = 0;
            *objSize = 0;
	    continue;
	}

	err = kKXKextManagerErrorNone;

    } while( false );

    if (-1 != fd)
    {
        close(fd);
    }
    if (kKXKextManagerErrorNone != err)
    {
        fprintf(stderr, "couldn't read %s: %s\n", path, strerror(errno));
    }

    return( err );
}
Exemplo n.º 7
0
//int exec (struct replay_command* to_exec, int *exec_rvalue, int *pids_to_fd_pairs[]) {
int exec (struct replay_command* to_exec, int *exec_rvalue, struct replay* rpl) {

	assert (to_exec != NULL);
	Parms* args = to_exec->params;
	int current_session_id = to_exec->session_id;

	switch (to_exec->command) {
		case MKDIR_OP: {
			*exec_rvalue = mkdir (args[0].argm->cprt_val, args[1].argm->i_val);
		}
		break;
		case STAT_OP: {
			struct stat sb;
			*exec_rvalue = stat(args[0].argm->cprt_val, &sb);
		}
		break;
		case OPEN_OP: {
			int replayed_fd =
					open (args[0].argm->cprt_val, args[1].argm->i_val, args[2].argm->i_val);

			*exec_rvalue = replayed_fd;
			if (rpl->session_enabled) {
				set_session_fd (current_session_id, replayed_fd, rpl);
			} else {
				int traced_fd = to_exec->expected_retval;
				if (traced_fd > 0) {
					map_fd (to_exec->caller->pid, traced_fd, replayed_fd, rpl->pids_to_fd_pairs);
				}
			}
		}
		break;
		case READ_OP: {
			int traced_fd = args[1].argm->i_val;
			int repl_fd =  (rpl->session_enabled) ?
						session_fd (current_session_id, rpl) :
						replayed_fd (to_exec->caller->pid, traced_fd, rpl->pids_to_fd_pairs);

			//FIXME should share a big bufer to avoid malloc'ing time wasting ?
			int read_count = args[2].argm->i_val;
			char* buf = (char*) malloc (sizeof (char) * read_count);
			*exec_rvalue = read (repl_fd, buf, read_count);
		}
		break;
		case PREAD_OP: {
			//args": ["/local2/bigdata.dat", "22857", "4096", "902141250"]
			//ssize_t pread(int fd, void *buf, size_t count, off_t offset);
			int traced_fd = args[1].argm->i_val;
			int repl_fd =  (rpl->session_enabled) ?
						session_fd (current_session_id, rpl) :
						replayed_fd (to_exec->caller->pid, traced_fd, rpl->pids_to_fd_pairs);

			//FIXME should share a big bufer to avoid malloc'ing time wasting ?
			int read_count = args[2].argm->i_val;
			char* buf = (char*) malloc (sizeof (char) * read_count);
			int offset = args[3].argm->i_val;
			*exec_rvalue = pread (repl_fd, buf, read_count, offset);
		}
		break;
		case PWRITE_OP: {
			int traced_fd = args[1].argm->i_val;
			int repl_fd =  (rpl->session_enabled) ?
						session_fd (current_session_id, rpl) :
						replayed_fd (to_exec->caller->pid, traced_fd, rpl->pids_to_fd_pairs);

			//FIXME should share a big bufer to avoid malloc'ing time wasting ?
			int write_count = args[2].argm->i_val;
			char* buf = (char*) malloc (sizeof (char) * write_count);
			int offset = args[3].argm->i_val;
			*exec_rvalue = pwrite (repl_fd, buf, write_count, offset);
		}
		break;
		case WRITE_OP: {
			int traced_fd = args[1].argm->i_val;
			int repl_fd =  (rpl->session_enabled) ?
						session_fd (current_session_id, rpl) :
						replayed_fd (to_exec->caller->pid, traced_fd, rpl->pids_to_fd_pairs);

			//FIXME should share a big bufer to avoid malloc'ing time wasting ?
			int write_count = args[2].argm->i_val;
			char* buf = (char*) malloc (sizeof (char) * write_count);
			*exec_rvalue = write (repl_fd, buf, write_count);
		}
		break;
		case CLOSE_OP: {
			int traced_fd = args[0].argm->i_val;
			int repl_fd =  (rpl->session_enabled) ?
						session_fd (current_session_id, rpl) :
						replayed_fd (to_exec->caller->pid, traced_fd, rpl->pids_to_fd_pairs);

			*exec_rvalue = close (repl_fd);
			//FIXME should we set the fd mapping to something impossible as -1
			//i think i this way we do not mask programming errors
		}
		break;
		case FSTAT_OP: {
			struct stat sb;
			int traced_fd = args[1].argm->i_val;
			int repl_fd =  (rpl->session_enabled) ?
						session_fd (current_session_id, rpl) :
						replayed_fd (to_exec->caller->pid, traced_fd, rpl->pids_to_fd_pairs);

			*exec_rvalue = fstat(repl_fd, &sb);
		}
		break;
		case RMDIR_OP: {
			*exec_rvalue = unlink (args[0].argm->cprt_val);
		}
		break;
		case LLSEEK_OP: {
			int traced_fd = args[1].argm->i_val;
			int repl_fd =  (rpl->session_enabled) ?
						session_fd (current_session_id, rpl) :
						replayed_fd (to_exec->caller->pid, traced_fd, rpl->pids_to_fd_pairs);

			long high = (long) args[2].argm->l_val;
			long low = (long) args[3].argm->l_val;
			off_t offset = (off_t) (high << 32) | low;
			int whence = args[3].argm->i_val;
			*exec_rvalue = lseek (repl_fd, offset, whence);
		}
		break;
		default:
			return -1;
	}

	return REPLAY_SUCCESS;
}
Exemplo n.º 8
0
NXStream *NXGetStreamOnSection(const char *fileName, const char *segmentName, const char *sectionName)
{
    int             fd;
    struct stat     info;
    NXStream 	   *s = NULL;
    struct fat_header *fh;
    struct mach_header *mh;
    const struct section *sect;
    vm_offset_t mh_page, sect_page;
    unsigned long archOffset;
    unsigned int cnt = HOST_BASIC_INFO_COUNT;
    struct host_basic_info hbi;

    if (host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)(&hbi), &cnt) != KERN_SUCCESS)
      return NULL;

    fd = open(fileName, O_RDONLY, 0444);
    if (fd < 0 || fstat(fd, &info) < 0)
    	return NULL;

    if (((info.st_mode & S_IFMT) != S_IFREG) || (info.st_size < sizeof(*fh))) {
	close(fd);
	return NULL;
    }

    if (map_fd(fd, 0, (vm_offset_t *)&fh, TRUE, (vm_size_t)info.st_size) != KERN_SUCCESS) {
	close(fd);
	return NULL;
    }

#ifdef __BIG_ENDIAN__
    if (fh->magic == FAT_MAGIC) {
#endif __BIG_ENDIAN__
#ifdef __LITTLE_ENDIAN__
    if (fh->magic == NXSwapLong(FAT_MAGIC)) {
#endif __LITTLE_ENDIAN__
	int i;
	struct fat_arch *fa = (struct fat_arch*)(fh + 1);
#ifdef __LITTLE_ENDIAN__
	enum NXByteOrder host_byte_sex = NXHostByteOrder();
	swap_fat_header(fh, host_byte_sex);
#endif __LITTLE_ENDIAN__
	if ((fh->nfat_arch <= 0) || (info.st_size < sizeof(*fh)+sizeof(*fa)*fh->nfat_arch)) {
		vm_deallocate(mach_task_self(), (vm_offset_t)fh, info.st_size);
		close(fd);
		return NULL;
	}
#ifdef __LITTLE_ENDIAN__
	swap_fat_arch(fa, fh->nfat_arch, host_byte_sex);
#endif __LITTLE_ENDIAN__
	for (i = 0; i < fh->nfat_arch; i++, fa++) {
		if (fa->cputype == hbi.cpu_type) {
//****		** check for best cpu_subtype here ** (fa->cpusubtype == hbi.cpu_subtype)
			break;	// for now, accept all subtypes
		}
	}
	if (i >= fh->nfat_arch) {
		vm_deallocate(mach_task_self(), (vm_offset_t)fh, info.st_size);
		close(fd);
 		return NULL;
	}
	archOffset = fa->offset;
	mh = (struct mach_header*)((char*)fh + archOffset);
    } else {
	archOffset = 0L;
    	mh = (struct mach_header*)fh;
    }
    
    if ((info.st_size < archOffset + sizeof(*mh)) ||
	(mh->magic != MH_MAGIC) || (mh->cputype != hbi.cpu_type) ||
	(info.st_size < archOffset + sizeof(*mh) + mh->sizeofcmds) ||
	!check_wellformed_header(mh, info.st_size - archOffset, NO)) { // bug#21223
	vm_deallocate(mach_task_self(), (vm_offset_t)fh, info.st_size);
	close(fd);
 	return NULL;
    }

    /*
     * Get the section data.
     */
    sect = getsectbynamefromheader(mh, segmentName, sectionName);
    if (sect == NULL || sect->size == 0 ||
	(info.st_size < archOffset + sect->offset + sect->size)) {
	vm_deallocate(mach_task_self(), (vm_offset_t)fh, info.st_size);
	close(fd);
	return NULL;
    }

    /*
     * Create the stream.
     */
    s = NXOpenMemory((char *)mh + sect->offset, sect->size,
	NX_READONLY);
    s->flags &= ~NX_USER_OWNS_BUF;

    /*
     * Through away the parts of the file not needed.  Assert that all
     * pages that the file lives on are used only by the file.
     */
    sect_page = round_page((vm_offset_t)mh + sect->offset + sect->size);
    mh_page = round_page((vm_offset_t)fh + info.st_size);
    if (mh_page - sect_page)
	vm_deallocate(mach_task_self(), sect_page, mh_page - sect_page);

    mh_page = trunc_page((vm_offset_t)fh);
    sect_page = trunc_page((vm_offset_t)mh + sect->offset);
    if (sect_page - mh_page)
	vm_deallocate(mach_task_self(), mh_page, sect_page - mh_page);

    if (close(fd) < 0) {
	NXCloseMemory(s, NX_FREEBUFFER);
	s = NULL;
    }

    return s;
}



NXStream *NXGetStreamOnSectionForBestArchitecture(
	const char *fileName,
	const char *segmentName,
	const char *sectionName)
{
    int             fd;
    struct stat     info;
    NXStream 	   *s = NULL;
    struct fat_header *fh;
    struct mach_header *mh;
    const struct section *sect;
    vm_offset_t mh_page, sect_page;
    unsigned long archOffset;
    unsigned int cnt = HOST_BASIC_INFO_COUNT;
    struct host_basic_info hbi;
    int fSwap = NO;

    if (host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)(&hbi), &cnt) != KERN_SUCCESS)
      return NULL;

    fd = open(fileName, O_RDONLY, 0444);
    if (fd < 0 || fstat(fd, &info) < 0)
    	return NULL;

    if (((info.st_mode & S_IFMT) != S_IFREG) || (info.st_size < sizeof(*fh))) {
	close(fd);
	return NULL;
    }

    if (map_fd(fd, 0, (vm_offset_t *)&fh, TRUE, (vm_size_t)info.st_size) != KERN_SUCCESS) {
	close(fd);
	return NULL;
    }

#ifdef __BIG_ENDIAN__
    if (fh->magic == FAT_MAGIC) {
#endif __BIG_ENDIAN__
#ifdef __LITTLE_ENDIAN__
    if (fh->magic == NXSwapLong(FAT_MAGIC)) {
#endif __LITTLE_ENDIAN__
	int i;
	struct fat_arch *fa = (struct fat_arch*)(fh + 1);
#ifdef __LITTLE_ENDIAN__
	enum NXByteOrder host_byte_sex = NXHostByteOrder();
	swap_fat_header(fh, host_byte_sex);
#endif __LITTLE_ENDIAN__
	if ((fh->nfat_arch <= 0) || (info.st_size < sizeof(*fh)+sizeof(*fa)*fh->nfat_arch)) {
	    vm_deallocate(mach_task_self(), (vm_offset_t)fh, info.st_size);
	    close(fd);
	    return NULL;
	}
#ifdef __LITTLE_ENDIAN__
	swap_fat_arch(fa, fh->nfat_arch, host_byte_sex);
#endif __LITTLE_ENDIAN__
	for (i = 0; i < fh->nfat_arch; i++, fa++) {
	    if (fa->cputype == hbi.cpu_type) {
//****		** check for best cpu_subtype here ** (fa->cpusubtype == hbi.cpu_subtype)
		break;	// for now, accept all subtypes
	    }
	}
	if (i >= fh->nfat_arch) {
	    /*
	     * If do not have the correct cpu_type, just use the last type
	     * in file.
	     * NOTE: we could have a list passed in, and choose the best
	     *       based upon that list.
	     */
	    fa--;
	}
	archOffset = fa->offset;
	mh = (struct mach_header*)((char*)fh + archOffset);
    } else {
	archOffset = 0L;
    	mh = (struct mach_header*)fh;
    }
    
    if (info.st_size < archOffset + sizeof(*mh)) {
	vm_deallocate(mach_task_self(), (vm_offset_t)fh, info.st_size);
	close(fd);
 	return NULL;
    }
    
    /* 
     * Do we need to swap the header?  Header is always in byte-order of machine it
     * was compiled for.
     */
    if (mh->magic == NXSwapLong(MH_MAGIC)) {
	fSwap = YES;
#ifdef __LITTLE_ENDIAN__
	swap_mach_header(mh, NX_LittleEndian);
#else
	swap_mach_header(mh, NX_BigEndian);
#endif __LITTLE_ENDIAN__
    }

    
    if ((mh->magic != MH_MAGIC) ||
	(info.st_size < archOffset + sizeof(*mh) + mh->sizeofcmds) ||
	!check_wellformed_header(mh, info.st_size - archOffset, fSwap)) { // bug#21223
	vm_deallocate(mach_task_self(), (vm_offset_t)fh, info.st_size);
	close(fd);
 	return NULL;
    }

    /*
     * Get the section data.
     */
    sect = getsectbynamefromheaderwithswap(mh, segmentName, sectionName, fSwap);
    if (sect == NULL || sect->size == 0 ||
	(info.st_size < archOffset + sect->offset + sect->size)) {
	vm_deallocate(mach_task_self(), (vm_offset_t)fh, info.st_size);
	close(fd);
	return NULL;
    }

    /*
     * Create the stream.
     */
    s = NXOpenMemory((char *)mh + sect->offset, sect->size, NX_READONLY);
    s->flags &= ~NX_USER_OWNS_BUF;

    /*
     * Through away the parts of the file not needed.  Assert that all
     * pages that the file lives on are used only by the file.
     */
    sect_page = round_page((vm_offset_t)mh + sect->offset + sect->size);
    mh_page = round_page((vm_offset_t)fh + info.st_size);
    if (mh_page - sect_page)
	vm_deallocate(mach_task_self(), sect_page, mh_page - sect_page);

    mh_page = trunc_page((vm_offset_t)fh);
    sect_page = trunc_page((vm_offset_t)mh + sect->offset);
    if (sect_page - mh_page)
	vm_deallocate(mach_task_self(), mh_page, sect_page - mh_page);

    if (close(fd) < 0) {
	NXCloseMemory(s, NX_FREEBUFFER);
	s = NULL;
    }

    return s;
}
static
int
copy_file(
    const char *file,
    const char *copy)
{
    int fd1, fd2, retval;
    char *buf;
    struct stat info;
    kern_return_t ret;

    fd1 = open(file, O_RDONLY, 0666);
    if (fd1 < 0) {
        perror("open");
        return -1;
    }
    if (fstat(fd1, &info) < 0) {
        perror("fstat");
        return -1;
    }
    if (info.st_size < 0 || (info.st_mode & S_IFMT) != S_IFREG) {
        return -1;
    }
    if ((ret = map_fd(fd1, 0, (vm_offset_t *)&buf, TRUE, info.st_size)) !=
	KERN_SUCCESS) {
        mach_error("map_fd", ret);
        return -1;
    }
    fd2 = open(copy, O_WRONLY | O_CREAT, 0666);
    if (fd2 < 0) {
        perror("open");
        return -1;
    }
    retval = write(fd2, buf, info.st_size);
    if (retval < 0) {
        perror("write");
        return retval;
    }
    retval = fsync(fd2);
    if (retval < 0) {
        perror("fsync");
        return retval;
    }
    retval = close(fd2);
    if (retval < 0) {
        perror("close");
        return retval;
    }
    retval = close(fd1);
    if (retval < 0) {
        perror("close");
        return retval;
    }
    ret = vm_deallocate(mach_task_self(), (vm_offset_t)buf,
			(vm_size_t)info.st_size);
    if (ret != KERN_SUCCESS) {
        mach_error("vm_deallocate", ret);
        return ret;
    }
    return 0;
}
Exemplo n.º 10
0
long do_mach_syscall(void *cpu_env, int num, uint32_t arg1, uint32_t arg2, uint32_t arg3,
                uint32_t arg4, uint32_t arg5, uint32_t arg6, uint32_t arg7,
                uint32_t arg8)
{
    extern uint32_t mach_reply_port();

    long ret = 0;

    arg1 = tswap32(arg1);
    arg2 = tswap32(arg2);
    arg3 = tswap32(arg3);
    arg4 = tswap32(arg4);
    arg5 = tswap32(arg5);
    arg6 = tswap32(arg6);
    arg7 = tswap32(arg7);
    arg8 = tswap32(arg8);

    DPRINTF("mach syscall %d : " , num);

    switch(num) {
    /* see xnu/osfmk/mach/syscall_sw.h */
    case -26:
        DPRINTF("mach_reply_port()\n");
        ret = mach_reply_port();
        break;
    case -27:
        DPRINTF("mach_thread_self()\n");
        ret = mach_thread_self();
        break;
    case -28:
        DPRINTF("mach_task_self()\n");
        ret = mach_task_self();
        break;
    case -29:
        DPRINTF("mach_host_self()\n");
        ret = mach_host_self();
        break;
    case -31:
        DPRINTF("mach_msg_trap(0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x)\n",
                arg1, arg2, arg3, arg4, arg5, arg6, arg7);
        ret = target_mach_msg_trap((mach_msg_header_t *)arg1, arg2, arg3, arg4, arg5, arg6, arg7);
        break;
/* may need more translation if target arch is different from host */
#if (defined(TARGET_I386) && defined(__i386__)) || (defined(TARGET_PPC) && defined(__ppc__))
    case -33:
        DPRINTF("semaphore_signal_trap(0x%x)\n", arg1);
        ret = semaphore_signal_trap(arg1);
        break;
    case -34:
        DPRINTF("semaphore_signal_all_trap(0x%x)\n", arg1);
        ret = semaphore_signal_all_trap(arg1);
        break;
    case -35:
        DPRINTF("semaphore_signal_thread_trap(0x%x)\n", arg1, arg2);
        ret = semaphore_signal_thread_trap(arg1,arg2);
        break;
#endif
    case -36:
        DPRINTF("semaphore_wait_trap(0x%x)\n", arg1);
        extern int semaphore_wait_trap(int); // XXX: is there any header for that?
        ret = semaphore_wait_trap(arg1);
        break;
/* may need more translation if target arch is different from host */
#if (defined(TARGET_I386) && defined(__i386__)) || (defined(TARGET_PPC) && defined(__ppc__))
    case -37:
        DPRINTF("semaphore_wait_signal_trap(0x%x, 0x%x)\n", arg1, arg2);
        ret = semaphore_wait_signal_trap(arg1,arg2);
        break;
#endif
    case -43:
        DPRINTF("map_fd(0x%x, 0x%x, 0x%x, 0x%x, 0x%x)\n",
                arg1, arg2, arg3, arg4, arg5);
        ret = map_fd(arg1, arg2, (void*)arg3, arg4, arg5);
        tswap32s((uint32_t*)arg3);
        break;
/* may need more translation if target arch is different from host */
#if (defined(TARGET_I386) && defined(__i386__)) || (defined(TARGET_PPC) && defined(__ppc__))
    case -61:
        DPRINTF("syscall_thread_switch(0x%x, 0x%x, 0x%x)\n",
                arg1, arg2, arg3);
        ret = syscall_thread_switch(arg1, arg2, arg3);  // just a hint to the scheduler; can drop?
        break;
#endif
    case -89:
        DPRINTF("mach_timebase_info(0x%x)\n", arg1);
        struct mach_timebase_info info;
        ret = mach_timebase_info(&info);
        if(!is_error(ret))
        {
            struct mach_timebase_info *outInfo = (void*)arg1;
            outInfo->numer = tswap32(info.numer);
            outInfo->denom = tswap32(info.denom);
        }
        break;
    case -90:
        DPRINTF("mach_wait_until()\n");
        extern int mach_wait_until(uint64_t); // XXX: is there any header for that?
        ret = mach_wait_until(((uint64_t)arg2<<32) | (uint64_t)arg1);
        break;
    case -91:
        DPRINTF("mk_timer_create()\n");
        extern int mk_timer_create(); // XXX: is there any header for that?
        ret = mk_timer_create();
        break;
    case -92:
        DPRINTF("mk_timer_destroy()\n");
        extern int mk_timer_destroy(int); // XXX: is there any header for that?
        ret = mk_timer_destroy(arg1);
        break;
    case -93:
        DPRINTF("mk_timer_create()\n");
        extern int mk_timer_arm(int, uint64_t); // XXX: is there any header for that?
        ret = mk_timer_arm(arg1, ((uint64_t)arg3<<32) | (uint64_t)arg2);
        break;
    case -94:
        DPRINTF("mk_timer_cancel()\n");
        extern int mk_timer_cancel(int, uint64_t *); // XXX: is there any header for that?
        ret = mk_timer_cancel(arg1, (uint64_t *)arg2);
        if((!is_error(ret)) && arg2)
            tswap64s((uint64_t *)arg2);
        break;
    default:
        gemu_log("qemu: Unsupported mach syscall: %d(0x%x)\n", num, num);
        gdb_handlesig (cpu_env, SIGTRAP);
        exit(0);
        break;
    }
    return ret;
}