Darwin userspace emulation, by Pierre d'Herbemont.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2332 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 1315 insertions, 0 deletions

diff --git a/darwin-user/syscall.c b/darwin-user/syscall.c
new file mode 100644
index 0000000000..50725e633f
--- /dev/null
+++ b/darwin-user/syscall.c
@@ -0,0 +1,1315 @@
+/*
+ *  Darwin syscalls
+ *
+ *  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, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include <mach/message.h>
+#include <mach/mach.h>
+#include <mach/mach_time.h>
+
+#include <pthread.h>
+#include <dirent.h>
+
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/sysctl.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/dirent.h>
+#include <sys/uio.h>
+#include <sys/termios.h>
+#include <sys/ptrace.h>
+#include <net/if.h>
+
+#include <sys/param.h>
+#include <sys/mount.h>
+
+#include <sys/attr.h>
+
+#include <mach/ndr.h>
+#include <mach/mig_errors.h>
+
+#include "qemu.h"
+
+//#define DEBUG_SYSCALL
+
+#ifdef DEBUG_SYSCALL
+# define DEBUG_FORCE_ENABLE_LOCAL() int __DEBUG_qemu_user_force_enable = 1
+# define DEBUG_BEGIN_ENABLE  __DEBUG_qemu_user_force_enable = 1;
+# define DEBUG_END_ENABLE  __DEBUG_qemu_user_force_enable = 0;
+
+# define DEBUG_DISABLE_ALL() static int __DEBUG_qemu_user_force_enable = 0
+# define DEBUG_ENABLE_ALL()  static int __DEBUG_qemu_user_force_enable = 1
+    DEBUG_ENABLE_ALL();
+
+# define DPRINTF(...) do { if(loglevel) fprintf(logfile, __VA_ARGS__); \
+                           if(__DEBUG_qemu_user_force_enable) fprintf(stderr, __VA_ARGS__); \
+                         } while(0)
+#else
+# define DEBUG_FORCE_ENABLE_LOCAL()
+# define DEBUG_BEGIN_ENABLE
+# define DEBUG_END_ENABLE
+
+# define DPRINTF(...) do { if(loglevel) fprintf(logfile, __VA_ARGS__); } while(0)
+#endif
+
+enum {
+    bswap_out = 0,
+    bswap_in = 1
+};
+
+extern const char *interp_prefix;
+
+static inline long get_errno(long ret)
+{
+    if (ret == -1)
+        return -errno;
+    else
+        return ret;
+}
+
+static inline int is_error(long ret)
+{
+    return (unsigned long)ret >= (unsigned long)(-4096);
+}
+
+/* ------------------------------------------------------------
+   Mach syscall handling
+*/
+
+void static inline print_description_msg_header(mach_msg_header_t *hdr)
+{
+    char *name = NULL;
+    int i;
+    struct { int number; char *name; } msg_name[] =
+    {
+        /* see http://fxr.watson.org/fxr/source/compat/mach/mach_namemap.c?v=NETBSD */
+        { 200,      "host_info" },
+        { 202,      "host_page_size" },
+        { 206,      "host_get_clock_service" },
+        { 206,      "host_get_clock_service" },
+        { 206,      "host_get_clock_service" },
+        { 306,      "host_get_clock_service" },
+        { 3204,     "mach_port_allocate" },
+        { 3206,     "mach_port_deallocate" },
+        { 3404,     "mach_ports_lookup" },
+        { 3409,     "mach_task_get_special_port" },
+        { 3414,     "mach_task_get_exception_ports" },
+        { 3418,     "mach_semaphore_create" },
+        { 3504,     "mach_semaphore_create" },
+        { 3509,     "mach_semaphore_create" },
+        { 3518,     "semaphore_create" },
+        { 3616,     "thread_policy" },
+        { 3801,     "vm_allocate" },
+        { 3802,     "vm_deallocate" },
+        { 3802,     "vm_deallocate" },
+        { 3803,     "vm_protect" },
+        { 3812,     "vm_map" },
+        { 4241776,  "lu_message_send_id" },  /* lookupd */
+        { 4241876,  "lu_message_reply_id" }, /* lookupd */
+    };
+
+    for(i = 0; i < sizeof(msg_name)/sizeof(msg_name[0]); i++) {
+        if(msg_name[i].number == hdr->msgh_id)
+        {
+            name = msg_name[i].name;
+            break;
+        }
+    }
+    if(!name)
+        DPRINTF("unknown mach msg %d 0x%x\n", hdr->msgh_id, hdr->msgh_id);
+    else
+        DPRINTF("%s\n", name);
+#if 0
+    DPRINTF("Bits: %8x\n", hdr->msgh_bits);
+    DPRINTF("Size: %8x\n", hdr->msgh_size);
+    DPRINTF("Rmte: %8x\n", hdr->msgh_remote_port);
+    DPRINTF("Locl: %8x\n", hdr->msgh_local_port);
+    DPRINTF("Rsrv: %8x\n", hdr->msgh_reserved);
+
+    DPRINTF("Id  : %8x\n", hdr->msgh_id);
+
+    NDR_record_t *ndr = (NDR_record_t *)(hdr + 1);
+    DPRINTF("hdr = %p, sizeof(hdr) = %x, NDR = %p\n", hdr, (unsigned int)sizeof(mach_msg_header_t), ndr);
+    DPRINTF("%d %d %d %d %d %d %d %d\n",
+           ndr->mig_vers, ndr->if_vers, ndr->reserved1, ndr->mig_encoding,
+           ndr->int_rep, ndr->char_rep, ndr->float_rep, ndr->reserved2);
+#endif
+}
+
+static inline void print_mach_msg_return(mach_msg_return_t ret)
+{
+    int i, found = 0;
+#define MACH_MSG_RET(msg) { msg, #msg }
+    struct { int code; char *name; } msg_name[] =
+    {
+        /* ref: http://darwinsource.opendarwin.org/10.4.2/xnu-792.2.4/osfmk/man/mach_msg.html */
+        /* send message */
+        MACH_MSG_RET(MACH_SEND_MSG_TOO_SMALL),
+        MACH_MSG_RET(MACH_SEND_NO_BUFFER),
+        MACH_MSG_RET(MACH_SEND_INVALID_DATA),
+        MACH_MSG_RET(MACH_SEND_INVALID_HEADER),
+        MACH_MSG_RET(MACH_SEND_INVALID_DEST),
+        MACH_MSG_RET(MACH_SEND_INVALID_NOTIFY),
+        MACH_MSG_RET(MACH_SEND_INVALID_REPLY),
+        MACH_MSG_RET(MACH_SEND_INVALID_TRAILER),
+        MACH_MSG_RET(MACH_SEND_INVALID_MEMORY),
+        MACH_MSG_RET(MACH_SEND_INVALID_RIGHT),
+        MACH_MSG_RET(MACH_SEND_INVALID_TYPE),
+        MACH_MSG_RET(MACH_SEND_INTERRUPTED),
+        MACH_MSG_RET(MACH_SEND_TIMED_OUT),
+
+        MACH_MSG_RET(MACH_RCV_BODY_ERROR),
+        MACH_MSG_RET(MACH_RCV_HEADER_ERROR),
+
+        MACH_MSG_RET(MACH_RCV_IN_SET),
+        MACH_MSG_RET(MACH_RCV_INTERRUPTED),
+
+        MACH_MSG_RET(MACH_RCV_INVALID_DATA),
+        MACH_MSG_RET(MACH_RCV_INVALID_NAME),
+        MACH_MSG_RET(MACH_RCV_INVALID_NOTIFY),
+        MACH_MSG_RET(MACH_RCV_INVALID_TRAILER),
+        MACH_MSG_RET(MACH_RCV_INVALID_TYPE),
+
+        MACH_MSG_RET(MACH_RCV_PORT_CHANGED),
+        MACH_MSG_RET(MACH_RCV_PORT_DIED),
+
+        MACH_MSG_RET(MACH_RCV_SCATTER_SMALL),
+        MACH_MSG_RET(MACH_RCV_TIMED_OUT),
+        MACH_MSG_RET(MACH_RCV_TOO_LARGE)
+    };
+#undef MACH_MSG_RET
+
+    if( ret == MACH_MSG_SUCCESS)
+        DPRINTF("MACH_MSG_SUCCESS\n");
+    else
+    {
+        for( i = 0; i < sizeof(msg_name)/sizeof(msg_name[0]); i++) {
+            if(msg_name[0].code & ret) {
+                DPRINTF("%s ", msg_name[0].name);
+                found = 1;
+            }
+        }
+        if(!found)
+            qerror("unknow mach message ret code %d\n", ret);
+        else
+            DPRINTF("\n");
+    }
+}
+
+static inline void swap_mach_msg_header(mach_msg_header_t *hdr)
+{
+    hdr->msgh_bits = tswap32(hdr->msgh_bits);
+    hdr->msgh_size = tswap32(hdr->msgh_size);
+    hdr->msgh_remote_port = tswap32(hdr->msgh_remote_port);
+    hdr->msgh_local_port = tswap32(hdr->msgh_local_port);
+    hdr->msgh_reserved = tswap32(hdr->msgh_reserved);
+    hdr->msgh_id = tswap32(hdr->msgh_id);
+}
+
+struct complex_msg {
+            mach_msg_header_t hdr;
+            mach_msg_body_t body;
+};
+
+static inline void * swap_mach_msg_body(struct complex_msg *complex_msg, int bswap)
+{
+    mach_msg_port_descriptor_t *descr = (mach_msg_port_descriptor_t *)(complex_msg+1);
+    int i,j;
+    void *additional_data;
+
+    if(bswap == bswap_in)
+        tswap32s(&complex_msg->body.msgh_descriptor_count);
+
+    DPRINTF("body.msgh_descriptor_count %d\n", complex_msg->body.msgh_descriptor_count);
+
+    for(i = 0; i < complex_msg->body.msgh_descriptor_count; i++) {
+        switch(descr->type)
+        {
+            case MACH_MSG_PORT_DESCRIPTOR:
+                tswap32s(&descr->name);
+                descr++;
+                break;
+            case MACH_MSG_OOL_DESCRIPTOR:
+            {
+                mach_msg_ool_descriptor_t *ool = (void *)descr;
+                tswap32s((uint32_t *)&ool->address);
+                tswap32s(&ool->size);
+
+                descr = (mach_msg_port_descriptor_t *)(ool+1);
+                break;
+            }
+            case MACH_MSG_OOL_PORTS_DESCRIPTOR:
+            {
+                mach_msg_ool_ports_descriptor_t *ool_ports = (void *)descr;
+                mach_port_name_t * port_names;
+
+                if(bswap == bswap_in)
+                {
+                    tswap32s((uint32_t *)&ool_ports->address);
+                    tswap32s(&ool_ports->count);
+                }
+
+                port_names = ool_ports->address;
+
+                for(j = 0; j < ool_ports->count; j++)
+                    tswap32s(&port_names[j]);
+
+                if(bswap == bswap_out)
+                {
+                    tswap32s((uint32_t *)&ool_ports->address);
+                    tswap32s(&ool_ports->count);
+                }
+
+                descr = (mach_msg_port_descriptor_t *)(ool_ports+1);
+                break;
+            }
+            default: qerror("unknow mach msg descriptor type %x\n", descr->type);
+        }
+    }
+    if(bswap == bswap_out)
+        tswap32s(&complex_msg->body.msgh_descriptor_count);
+    additional_data = descr;
+    return additional_data;
+}
+
+static inline uint32_t target_mach_msg_trap(
+        mach_msg_header_t *hdr, uint32_t options, uint32_t send_size,
+        uint32_t rcv_size, uint32_t rcv_name, uint32_t time_out, uint32_t notify )
+{
+    extern int mach_msg_trap(mach_msg_header_t *, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
+    mach_msg_audit_trailer_t *trailer;
+    mach_msg_id_t msg_id;
+    uint32_t ret = 0;
+    char *additional_data;
+    int i;
+
+    swap_mach_msg_header(hdr);
+
+    print_description_msg_header(hdr);
+
+    msg_id = hdr->msgh_id;
+
+    if (hdr->msgh_bits & MACH_MSGH_BITS_COMPLEX)
+        additional_data = swap_mach_msg_body((struct complex_msg *)hdr, bswap_in);
+    else
+        additional_data = (void*)(hdr+1);
+
+    ret = mach_msg_trap(hdr, options, send_size, rcv_size, rcv_name, time_out, notify);
+
+    print_mach_msg_return(ret);
+
+    if (hdr->msgh_bits & MACH_MSGH_BITS_COMPLEX)
+        additional_data = swap_mach_msg_body((struct complex_msg *)hdr, bswap_out);
+    else
+        additional_data = (void*)(hdr+1);
+
+    if( (options & MACH_RCV_MSG) && (REQUESTED_TRAILER_SIZE(options) > 0) )
+    {
+        /* XXX: the kernel always return the full trailer with MACH_SEND_MSG, so we should
+                probably always bswap it  */
+        /* warning: according to Mac OS X Internals (the book) msg_size might be expressed in
+                    natural_t units but according to xnu/osfmk/mach/message.h: "The size of
+                    the message must be specified in bytes" */
+        trailer = (mach_msg_audit_trailer_t *)((uint8_t *)hdr + hdr->msgh_size);
+        /* XXX: Should probably do that based on the option asked by the sender, but dealing
+        with kernel answer seems more sound */
+        switch(trailer->msgh_trailer_size)
+        {
+            case sizeof(mach_msg_audit_trailer_t):
+                for(i = 0; i < 8; i++)
+                    tswap32s(&trailer->msgh_audit.val[i]);
+                /* Fall in mach_msg_security_trailer_t case */
+            case sizeof(mach_msg_security_trailer_t):
+                tswap32s(&trailer->msgh_sender.val[0]);
+                tswap32s(&trailer->msgh_sender.val[1]);
+                /* Fall in mach_msg_seqno_trailer_t case */
+            case sizeof(mach_msg_seqno_trailer_t):
+                tswap32s(&trailer->msgh_seqno);
+                /* Fall in mach_msg_trailer_t case */
+            case sizeof(mach_msg_trailer_t):
+                tswap32s(&trailer->msgh_trailer_type);
+                tswap32s(&trailer->msgh_trailer_size);
+                break;
+            case 0:
+                /* Safer not to byteswap, but probably wrong */
+                break;
+            default:
+                qerror("unknow trailer type given its size %d\n", trailer->msgh_trailer_size);
+                break;
+        }
+    }
+
+    /* Special message handling */
+    switch (msg_id) {
+        case 200: /* host_info */
+        {
+            mig_reply_error_t *err = (mig_reply_error_t *)hdr;
+            struct {
+                uint32_t unknow1;
+                uint32_t maxcpu;
+                uint32_t numcpu;
+                uint32_t memsize;
+                uint32_t cpu_type;
+                uint32_t cpu_subtype;
+            } *data = (void *)(err+1);
+
+            DPRINTF("maxcpu = 0x%x\n",   data->maxcpu);
+            DPRINTF("numcpu = 0x%x\n",   data->maxcpu);
+            DPRINTF("memsize = 0x%x\n",  data->memsize);
+
+#if defined(TARGET_I386)
+            data->cpu_type = CPU_TYPE_I386;
+            DPRINTF("cpu_type changed to 0x%x(i386)\n", data->cpu_type);
+#elif defined(TARGET_PPC)
+            data->cpu_type = CPU_TYPE_POWERPC;
+            DPRINTF("cpu_type changed to 0x%x(ppc)\n", data->cpu_type);
+#else
+# error target not supported
+#endif
+
+#if defined(TARGET_I386)
+            data->cpu_subtype = CPU_SUBTYPE_PENT;
+            DPRINTF("cpu_subtype changed to 0x%x(i386_pent)\n", data->cpu_subtype);
+#elif defined(TARGET_PPC)
+            data->cpu_subtype = CPU_SUBTYPE_POWERPC_750;
+            DPRINTF("cpu_subtype changed to 0x%x(ppc_all)\n", data->cpu_subtype);
+#else
+# error target not supported
+#endif
+            break;
+        }
+        case 202: /* host_page_size */
+        {
+            mig_reply_error_t *err = (mig_reply_error_t *)hdr;
+            uint32_t *pagesize = (uint32_t *)(err+1);
+
+            DPRINTF("pagesize = %d\n", *pagesize);
+            break;
+        }
+        default: break;
+    }
+
+    swap_mach_msg_header(hdr);
+
+    return ret;
+}
+
+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;
+    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;
+    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;
+    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;
+}
+
+/* ------------------------------------------------------------
+   thread type syscall handling
+*/
+long do_thread_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 cthread_set_self(uint32_t);
+    extern uint32_t processor_facilities_used();
+    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("thread syscall %d : " , num);
+
+    switch(num) {
+#ifdef TARGET_I386
+    case 0x3:
+#endif
+    case 0x7FF1: /* cthread_set_self */
+        DPRINTF("cthread_set_self(0x%x)\n", (unsigned int)arg1);
+        ret = cthread_set_self(arg1);
+#ifdef TARGET_I386
+        /* we need to update the LDT with the address of the thread */
+        write_dt((void *)(((CPUX86State *) cpu_env)->ldt.base + (4 * sizeof(uint64_t))), arg1, 1,
+                 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
+                 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
+        /* New i386 convention, %gs should be set to our this LDT entry */
+        cpu_x86_load_seg(cpu_env, R_GS, 0x27);
+        /* Old i386 convention, the kernel returns the selector for the cthread (pre-10.4.8?)*/
+        ret = 0x27;
+#endif
+        break;
+    case 0x7FF2: /* Called the super-fast pthread_self handler by the apple guys */
+        DPRINTF("pthread_self()\n");
+        ret = (uint32_t)pthread_self();
+        break;
+    case 0x7FF3:
+        DPRINTF("processor_facilities_used()\n");
+#ifdef __i386__
+        qerror("processor_facilities_used: not implemented!\n");
+#else
+        ret = (uint32_t)processor_facilities_used();
+#endif
+        break;
+    default:
+        gemu_log("qemu: Unsupported thread syscall: %d(0x%x)\n", num, num);
+        gdb_handlesig (cpu_env, SIGTRAP);
+        exit(0);
+        break;
+    }
+    return ret;
+}
+
+/* ------------------------------------------------------------
+   ioctl handling
+*/
+static inline void byteswap_termios(struct termios *t)
+{
+    tswap32s((uint32_t*)&t->c_iflag);
+    tswap32s((uint32_t*)&t->c_oflag);
+    tswap32s((uint32_t*)&t->c_cflag);
+    tswap32s((uint32_t*)&t->c_lflag);
+    /* 20 (char) bytes then */
+    tswap32s((uint32_t*)&t->c_ispeed);
+    tswap32s((uint32_t*)&t->c_ospeed);
+}
+
+static inline void byteswap_winsize(struct winsize *w)
+{
+    tswap16s(&w->ws_row);
+    tswap16s(&w->ws_col);
+    tswap16s(&w->ws_xpixel);
+    tswap16s(&w->ws_ypixel);
+}
+
+#define STRUCT(name, list...) STRUCT_ ## name,
+#define STRUCT_SPECIAL(name) STRUCT_ ## name,
+enum {
+#include "ioctls_types.h"
+};
+#undef STRUCT
+#undef STRUCT_SPECIAL
+
+#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
+#define STRUCT_SPECIAL(name)
+#include "ioctls_types.h"
+#undef STRUCT
+#undef STRUCT_SPECIAL
+
+typedef struct IOCTLEntry {
+    unsigned int target_cmd;
+    unsigned int host_cmd;
+    const char *name;
+    int access;
+    const argtype arg_type[5];
+} IOCTLEntry;
+
+#define IOC_R 0x0001
+#define IOC_W 0x0002
+#define IOC_RW (IOC_R | IOC_W)
+
+#define MAX_STRUCT_SIZE 4096
+
+IOCTLEntry ioctl_entries[] = {
+#define IOCTL(cmd, access, types...) \
+    { cmd, cmd, #cmd, access, { types } },
+#include "ioctls.h"
+    { 0, 0, },
+};
+
+/* ??? Implement proper locking for ioctls.  */
+static long do_ioctl(long fd, long cmd, long arg)
+{
+    const IOCTLEntry *ie;
+    const argtype *arg_type;
+    int ret;
+    uint8_t buf_temp[MAX_STRUCT_SIZE];
+    int target_size;
+    void *argptr;
+
+    ie = ioctl_entries;
+    for(;;) {
+        if (ie->target_cmd == 0) {
+            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
+            return -ENOSYS;
+        }
+        if (ie->target_cmd == cmd)
+            break;
+        ie++;
+    }
+    arg_type = ie->arg_type;
+#if defined(DEBUG)
+    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
+#endif
+    switch(arg_type[0]) {
+    case TYPE_NULL:
+        /* no argument */
+        ret = get_errno(ioctl(fd, ie->host_cmd));
+        break;
+    case TYPE_PTRVOID:
+    case TYPE_INT:
+        /* int argment */
+        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
+        break;
+    case TYPE_PTR:
+        arg_type++;
+        target_size = thunk_type_size(arg_type, 0);
+        switch(ie->access) {
+        case IOC_R:
+            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+            if (!is_error(ret)) {
+                argptr = lock_user(arg, target_size, 0);
+                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
+                unlock_user(argptr, arg, target_size);
+            }
+            break;
+        case IOC_W:
+            argptr = lock_user(arg, target_size, 1);
+            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
+            unlock_user(argptr, arg, 0);
+            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+            break;
+        default:
+        case IOC_RW:
+            argptr = lock_user(arg, target_size, 1);
+            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
+            unlock_user(argptr, arg, 0);
+            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+            if (!is_error(ret)) {
+                argptr = lock_user(arg, target_size, 0);
+                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
+                unlock_user(argptr, arg, target_size);
+            }
+            break;
+        }
+        break;
+    default:
+        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
+        ret = -ENOSYS;
+        break;
+    }
+    return ret;
+}
+
+/* ------------------------------------------------------------
+   Unix syscall handling
+*/
+
+static inline void byteswap_attrlist(struct attrlist *a)
+{
+    tswap16s(&a->bitmapcount);
+    tswap16s(&a->reserved);
+    tswap32s(&a->commonattr);
+    tswap32s(&a->volattr);
+    tswap32s(&a->dirattr);
+    tswap32s(&a->fileattr);
+    tswap32s(&a->forkattr);
+}
+
+struct attrbuf_header {
+    unsigned long length;
+};
+
+static inline void byteswap_attrbuf(struct attrbuf_header *attrbuf, struct attrlist *attrlist)
+{
+    DPRINTF("attrBuf.lenght %lx\n", attrbuf->length);
+}
+
+static inline void byteswap_statfs(struct statfs *s)
+{
+    tswap16s((uint16_t*)&s->f_otype);
+    tswap16s((uint16_t*)&s->f_oflags);
+    tswap32s((uint32_t*)&s->f_bsize);
+    tswap32s((uint32_t*)&s->f_iosize);
+    tswap32s((uint32_t*)&s->f_blocks);
+    tswap32s((uint32_t*)&s->f_bfree);
+    tswap32s((uint32_t*)&s->f_bavail);
+    tswap32s((uint32_t*)&s->f_files);
+    tswap32s((uint32_t*)&s->f_ffree);
+    tswap32s((uint32_t*)&s->f_fsid.val[0]);
+    tswap32s((uint32_t*)&s->f_fsid.val[1]);
+    tswap16s((uint16_t*)&s->f_reserved1);
+    tswap16s((uint16_t*)&s->f_type);
+    tswap32s((uint32_t*)&s->f_flags);
+}
+
+static inline void byteswap_stat(struct stat *s)
+{
+    tswap32s((uint32_t*)&s->st_dev);
+    tswap32s(&s->st_ino);
+    tswap16s(&s->st_mode);
+    tswap16s(&s->st_nlink);
+    tswap32s(&s->st_uid);
+    tswap32s(&s->st_gid);
+    tswap32s((uint32_t*)&s->st_rdev);
+    tswap32s((uint32_t*)&s->st_atimespec.tv_sec);
+    tswap32s((uint32_t*)&s->st_atimespec.tv_nsec);
+    tswap32s((uint32_t*)&s->st_mtimespec.tv_sec);
+    tswap32s((uint32_t*)&s->st_mtimespec.tv_nsec);
+    tswap32s((uint32_t*)&s->st_ctimespec.tv_sec);
+    tswap32s((uint32_t*)&s->st_ctimespec.tv_nsec);
+    tswap64s((uint64_t*)&s->st_size);
+    tswap64s((uint64_t*)&s->st_blocks);
+    tswap32s((uint32_t*)&s->st_blksize);
+    tswap32s(&s->st_flags);
+    tswap32s(&s->st_gen);
+}
+
+static inline void byteswap_dirents(struct dirent *d, int bytes)
+{
+    char *b;
+    for( b = (char*)d; (int)b < (int)d+bytes; )
+    {
+        unsigned short s = ((struct dirent *)b)->d_reclen;
+        tswap32s(&((struct dirent *)b)->d_ino);
+        tswap16s(&((struct dirent *)b)->d_reclen);
+        if(s<=0)
+            break;
+        b += s;
+    }
+}
+
+static inline void byteswap_iovec(struct iovec *v, int n)
+{
+    int i;
+    for(i = 0; i < n; i++)
+    {
+        tswap32s((uint32_t*)&v[i].iov_base);
+        tswap32s((uint32_t*)&v[i].iov_len);
+    }
+}
+
+static inline void byteswap_timeval(struct timeval *t)
+{
+    tswap32s((uint32_t*)&t->tv_sec);
+    tswap32s((uint32_t*)&t->tv_usec);
+}
+
+long do_unix_syscall_indirect(void *cpu_env, int num);
+long do_sync();
+long do_exit(uint32_t arg1);
+long do_getlogin(char *out, uint32_t size);
+long do_open(char * arg1, uint32_t arg2, uint32_t arg3);
+long do_getfsstat(struct statfs * arg1, uint32_t arg2, uint32_t arg3);
+long do_sigprocmask(uint32_t arg1, uint32_t * arg2, uint32_t * arg3);
+long do_execve(char* arg1, char ** arg2, char ** arg3);
+long do_getgroups(uint32_t arg1, gid_t * arg2);
+long do_gettimeofday(struct timeval * arg1, void * arg2);
+long do_readv(uint32_t arg1, struct iovec * arg2, uint32_t arg3);
+long do_writev(uint32_t arg1, struct iovec * arg2, uint32_t arg3);
+long do_utimes(char * arg1, struct timeval * arg2);
+long do_futimes(uint32_t arg1, struct timeval * arg2);
+long do_statfs(char * arg1, struct statfs * arg2);
+long do_fstatfs(uint32_t arg1, struct statfs * arg2);
+long do_stat(char * arg1, struct stat * arg2);
+long do_fstat(uint32_t arg1, struct stat * arg2);
+long do_lstat(char * arg1, struct stat * arg2);
+long do_getdirentries(uint32_t arg1, void* arg2, uint32_t arg3, void* arg4);
+long do_lseek(void *cpu_env, int num);
+long do___sysctl(void * arg1, uint32_t arg2, void * arg3, void * arg4, void * arg5, size_t arg6);
+long do_getattrlist(void * arg1, void * arg2, void * arg3, uint32_t arg4, uint32_t arg5);
+long do_getdirentriesattr(uint32_t arg1, void * arg2, void * arg3, size_t arg4, void * arg5, void * arg6, void* arg7, uint32_t arg8);
+
+long no_syscall(void *cpu_env, int num);
+
+long do_pread(uint32_t arg1, void * arg2, size_t arg3, off_t arg4)
+{
+    //DPRINTF("0x%x, 0x%x, 0x%x, 0x%llx\n", arg1, arg2, arg3, arg4);
+    long ret = (pread(arg1, arg2, arg3, arg4));
+    DPRINTF("0x%x\n", *(int*)arg2);
+    return ret;
+}
+long unimpl_unix_syscall(void *cpu_env, int num);
+
+typedef long (*syscall_function_t)(void *cpu_env, int num);
+
+
+/* define a table that will handle the syscall number->function association */
+#define VOID    void
+#define INT     (uint32_t)get_int_arg(&i, cpu_env)
+#define INT64   (uint64_t)get_int64_arg(&i, cpu_env)
+#define UINT    (unsigned int)INT
+#define PTR     (void*)INT
+
+#define SIZE    INT
+#define OFFSET  INT64
+
+#define WRAPPER_CALL_DIRECT_0(function, args) long __qemu_##function(void *cpu_env) {  return (long)function(); }
+#define WRAPPER_CALL_DIRECT_1(function, _arg1) long __qemu_##function(void *cpu_env) { int i = 0; typeof(_arg1) arg1 = _arg1;  return (long)function(arg1); }
+#define WRAPPER_CALL_DIRECT_2(function, _arg1, _arg2) long __qemu_##function(void *cpu_env) { int i = 0;  typeof(_arg1) arg1 = _arg1; typeof(_arg2) arg2 = _arg2; return (long)function(arg1, arg2); }
+#define WRAPPER_CALL_DIRECT_3(function, _arg1, _arg2, _arg3) long __qemu_##function(void *cpu_env) { int i = 0;   typeof(_arg1) arg1 = _arg1; typeof(_arg2) arg2 = _arg2; typeof(_arg3) arg3 = _arg3; return (long)function(arg1, arg2, arg3); }
+#define WRAPPER_CALL_DIRECT_4(function, _arg1, _arg2, _arg3, _arg4) long __qemu_##function(void *cpu_env) { int i = 0;   typeof(_arg1) arg1 = _arg1; typeof(_arg2) arg2 = _arg2; typeof(_arg3) arg3 = _arg3; typeof(_arg4) arg4 = _arg4; return (long)function(arg1, arg2, arg3, arg4); }
+#define WRAPPER_CALL_DIRECT_5(function, _arg1, _arg2, _arg3, _arg4, _arg5) long __qemu_##function(void *cpu_env) { int i = 0;   typeof(_arg1) arg1 = _arg1; typeof(_arg2) arg2 = _arg2; typeof(_arg3) arg3 = _arg3; typeof(_arg4) arg4 = _arg4; typeof(_arg5) arg5 = _arg5;  return (long)function(arg1, arg2, arg3, arg4, arg5); }
+#define WRAPPER_CALL_DIRECT_6(function, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6) long __qemu_##function(void *cpu_env) { int i = 0;   typeof(_arg1) arg1 = _arg1; typeof(_arg2) arg2 = _arg2; typeof(_arg3) arg3 = _arg3; typeof(_arg4) arg4 = _arg4; typeof(_arg5) arg5 = _arg5; typeof(_arg6) arg6 = _arg6;  return (long)function(arg1, arg2, arg3, arg4, arg5, arg6); }
+#define WRAPPER_CALL_DIRECT_7(function, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6, _arg7) long __qemu_##function(void *cpu_env) { int i = 0;   typeof(_arg1) arg1 = _arg1; typeof(_arg2) arg2 = _arg2; typeof(_arg3) arg3 = _arg3; typeof(_arg4) arg4 = _arg4; typeof(_arg5) arg5 = _arg5; typeof(_arg6) arg6 = _arg6; typeof(_arg7) arg7 = _arg7; return (long)function(arg1, arg2, arg3, arg4, arg5, arg6, arg7); }
+#define WRAPPER_CALL_DIRECT_8(function, _arg1, _arg2, _arg3, _arg4, _arg5, _arg6, _arg7, _arg8) long __qemu_##function(void *cpu_env) { int i = 0;   typeof(_arg1) arg1 = _arg1; typeof(_arg2) arg2 = _arg2; typeof(_arg3) arg3 = _arg3; typeof(_arg4) arg4 = _arg4; typeof(_arg5) arg5 = _arg5; typeof(_arg6) arg6 = _arg6; typeof(_arg7) arg7 = _arg7; typeof(_arg8) arg8 = _arg8;  return (long)function(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8); }
+#define WRAPPER_CALL_DIRECT(function, nargs, args...) WRAPPER_CALL_DIRECT_##nargs(function, args)
+#define WRAPPER_CALL_NOERRNO(function, nargs, args...)  WRAPPER_CALL_DIRECT(function, nargs, args)
+#define WRAPPER_CALL_INDIRECT(function, nargs, args...)
+#define ENTRY(name, number, function, nargs, call_type, args...)  WRAPPER_##call_type(function, nargs, args)
+
+#include "syscalls.h"
+
+#undef ENTRY
+#undef WRAPPER_CALL_DIRECT
+#undef WRAPPER_CALL_NOERRNO
+#undef WRAPPER_CALL_INDIRECT
+#undef OFFSET
+#undef SIZE
+#undef INT
+#undef PTR
+#undef INT64
+
+#define _ENTRY(name, number, function, nargs, call_type) [number] = {\
+        name, \
+        number, \
+        (syscall_function_t)function, \
+        nargs, \
+        call_type  \
+        },
+
+#define ENTRY_CALL_DIRECT(name, number, function, nargs, call_type)  _ENTRY(name, number, __qemu_##function, nargs, call_type)
+#define ENTRY_CALL_NOERRNO(name, number, function, nargs, call_type) ENTRY_CALL_DIRECT(name, number, function, nargs, call_type)
+#define ENTRY_CALL_INDIRECT(name, number, function, nargs, call_type) _ENTRY(name, number, function, nargs, call_type)
+#define ENTRY(name, number, function, nargs, call_type, args...) ENTRY_##call_type(name, number, function, nargs, call_type)
+
+#define CALL_DIRECT 1
+#define CALL_INDIRECT 2
+#define CALL_NOERRNO  (CALL_DIRECT | 4 /* = 5 */)
+
+struct unix_syscall {
+    char * name;
+    int number;
+    syscall_function_t function;
+    int nargs;
+    int call_type;
+} unix_syscall_table[SYS_MAXSYSCALL] = {
+#include "syscalls.h"
+};
+
+#undef ENTRY
+#undef _ENTRY
+#undef ENTRY_CALL_DIRECT
+#undef ENTRY_CALL_INDIRECT
+#undef ENTRY_CALL_NOERRNO
+
+/* Actual syscalls implementation */
+
+long do_unix_syscall_indirect(void *cpu_env, int num)
+{
+    long ret;
+    int new_num;
+    int i = 0;
+
+    new_num = get_int_arg(&i, cpu_env);
+#ifdef TARGET_I386
+    ((CPUX86State*)cpu_env)->regs[R_ESP] += 4;
+    /* XXX: not necessary */
+    ((CPUX86State*)cpu_env)->regs[R_EAX] = new_num;
+#elif TARGET_PPC
+    {
+        int i;
+        uint32_t **regs = ((CPUPPCState*)cpu_env)->gpr;
+        for(i = 3; i < 11; i++)
+            *regs[i] = *regs[i+1];
+        /* XXX: not necessary */
+        *regs[0] = new_num;
+    }
+#endif
+    ret = do_unix_syscall(cpu_env, new_num);
+#ifdef TARGET_I386
+    ((CPUX86State*)cpu_env)->regs[R_ESP] -= 4;
+    /* XXX: not necessary */
+    ((CPUX86State*)cpu_env)->regs[R_EAX] = num;
+#elif TARGET_PPC
+    {
+        int i;
+        /* XXX: not really needed those regs are volatile accross calls */
+        uint32_t **regs = ((CPUPPCState*)cpu_env)->gpr;
+        for(i = 11; i > 3; i--)
+            *regs[i] = *regs[i-1];
+        regs[3] = new_num;
+        *regs[0] = num;
+    }
+#endif
+    return ret;
+}
+
+long do_exit(uint32_t arg1)
+{
+    exit(arg1);
+    /* not reached */
+    return -1;
+}
+
+long do_sync()
+{
+    sync();
+    return 0;
+}
+
+long do_getlogin(char *out, uint32_t size)
+{
+    char *login = getlogin();
+    if(!login)
+        return -1;
+    memcpy(out, login, size);
+    return 0;
+}
+long do_open(char * arg1, uint32_t arg2, uint32_t arg3)
+{
+    /* XXX: don't let the %s stay in there */
+    DPRINTF("open(%s, 0x%x, 0x%x)\n", arg1, arg2, arg3);
+    return get_errno(open(arg1, arg2, arg3));
+}
+
+long do_getfsstat(struct statfs * arg1, uint32_t arg2, uint32_t arg3)
+{
+    long ret;
+    DPRINTF("getfsstat(%p, 0x%x, 0x%x)\n", arg1, arg2, arg3);
+    ret = get_errno(getfsstat(arg1, arg2, arg3));
+    if((!is_error(ret)) && arg1)
+        byteswap_statfs(arg1);
+    return ret;
+}
+
+long do_sigprocmask(uint32_t arg1, uint32_t * arg2, uint32_t * arg3)
+{
+    long ret;
+    DPRINTF("sigprocmask(%d, %p, %p)\n", arg1, arg2, arg3);
+    gemu_log("XXX: sigprocmask not tested (%d, %p, %p)\n", arg1, arg2, arg3);
+    if(arg2)
+        tswap32s(arg2);
+    ret = get_errno(sigprocmask(arg1, (void *)arg2, (void *)arg3));
+    if((!is_error(ret)) && arg3)
+        tswap32s(arg3);
+    if(arg2)
+        tswap32s(arg2);
+    return ret;
+}
+
+long do_execve(char* arg1, char ** arg2, char ** arg3)
+{
+    long ret;
+    char **argv = arg2;
+    char **envp = arg3;
+    int argc;
+    int envc;
+
+    /* XXX: don't let the %s stay in here */
+    DPRINTF("execve(%s, %p, %p)\n", arg1, arg2, arg3);
+
+    for(argc = 0; argv[argc]; argc++);
+    for(envc = 0; envp[envc]; envc++);
+
+    argv = (char**)malloc(sizeof(char*)*argc);
+    envp = (char**)malloc(sizeof(char*)*envc);
+
+    for(; argc >= 0; argc--)
+        argv[argc] = (char*)tswap32((uint32_t)(arg2)[argc]);
+
+    for(; envc >= 0; envc--)
+        envp[envc] = (char*)tswap32((uint32_t)(arg3)[envc]);
+
+    ret = get_errno(execve(arg1, argv, envp));
+    free(argv);
+    free(envp);
+    return ret;
+}
+
+long do_getgroups(uint32_t arg1, gid_t * arg2)
+{
+    long ret;
+    int i;
+    DPRINTF("getgroups(0x%x, %p)\n", arg1, arg2);
+    ret = get_errno(getgroups(arg1, arg2));
+    if(ret > 0)
+        for(i = 0; i < arg1; i++)
+            tswap32s(&arg2[i]);
+    return ret;
+}
+
+long do_gettimeofday(struct timeval * arg1, void * arg2)
+{
+    long ret;
+    DPRINTF("gettimeofday(%p, %p)\n",
+            arg1, arg2);
+    ret = get_errno(gettimeofday(arg1, arg2));
+    if(!is_error(ret))
+    {
+        /* timezone no longer used according to the manpage, so don't bother with it */
+        byteswap_timeval(arg1);
+    }
+    return ret;
+}
+
+long do_readv(uint32_t arg1, struct iovec * arg2, uint32_t arg3)
+{
+    long ret;
+    DPRINTF("readv(0x%x, %p, 0x%x)\n", arg1, arg2, arg3);
+    if(arg2)
+        byteswap_iovec(arg2, arg3);
+    ret = get_errno(readv(arg1, arg2, arg3));
+    if((!is_error(ret)) && arg2)
+        byteswap_iovec(arg2, arg3);
+    return ret;
+}
+
+long do_writev(uint32_t arg1, struct iovec * arg2, uint32_t arg3)
+{
+    long ret;
+    DPRINTF("writev(0x%x, %p, 0x%x)\n", arg1, arg2, arg3);
+    if(arg2)
+        byteswap_iovec(arg2, arg3);
+    ret = get_errno(writev(arg1, arg2, arg3));
+    if((!is_error(ret)) && arg2)
+        byteswap_iovec(arg2, arg3);
+    return ret;
+}
+
+long do_utimes(char * arg1, struct timeval * arg2)
+{
+    DPRINTF("utimes(%p, %p)\n", arg1, arg2);
+    if(arg2)
+    {
+        byteswap_timeval(arg2);
+        byteswap_timeval(arg2+1);
+    }
+    return get_errno(utimes(arg1, arg2));
+}
+
+long do_futimes(uint32_t arg1, struct timeval * arg2)
+{
+    DPRINTF("futimes(0x%x, %p)\n", arg1, arg2);
+    if(arg2)
+    {
+        byteswap_timeval(arg2);
+        byteswap_timeval(arg2+1);
+    }
+    return get_errno(futimes(arg1, arg2));
+}
+
+long do_statfs(char * arg1, struct statfs * arg2)
+{
+    long ret;
+    DPRINTF("statfs(%p, %p)\n", arg1, arg2);
+    ret = get_errno(statfs(arg1, arg2));
+    if(!is_error(ret))
+        byteswap_statfs(arg2);
+    return ret;
+}
+
+long do_fstatfs(uint32_t arg1, struct statfs* arg2)
+{
+    long ret;
+    DPRINTF("fstatfs(0x%x, %p)\n",
+            arg1, arg2);
+    ret = get_errno(fstatfs(arg1, arg2));
+    if(!is_error(ret))
+        byteswap_statfs(arg2);
+
+    return ret;
+}
+
+long do_stat(char * arg1, struct stat * arg2)
+{
+    long ret;
+    /* XXX: don't let the %s stay in there */
+    DPRINTF("stat(%s, %p)\n", arg1, arg2);
+    ret = get_errno(stat(arg1, arg2));
+    if(!is_error(ret))
+        byteswap_stat(arg2);
+    return ret;
+}
+
+long do_fstat(uint32_t arg1, struct stat * arg2)
+{
+    long ret;
+    DPRINTF("fstat(0x%x, %p)\n", arg1, arg2);
+    ret = get_errno(fstat(arg1, arg2));
+    if(!is_error(ret))
+        byteswap_stat(arg2);
+    return ret;
+}
+
+long do_lstat(char * arg1, struct stat * arg2)
+{
+    long ret;
+    /* XXX: don't let the %s stay in there */
+    DPRINTF("lstat(%s, %p)\n", (const char *)arg1, arg2);
+    ret = get_errno(lstat(arg1, arg2));
+    if(!is_error(ret))
+        byteswap_stat(arg2);
+    return ret;
+}
+
+long do_getdirentries(uint32_t arg1, void* arg2, uint32_t arg3, void* arg4)
+{
+    long ret;
+    DPRINTF("getdirentries(0x%x, %p, 0x%x, %p)\n", arg1, arg2, arg3, arg4);
+    if(arg4)
+        tswap32s((uint32_t *)arg4);
+    ret = get_errno(getdirentries(arg1, arg2, arg3, arg4));
+    if(arg4)
+        tswap32s((uint32_t *)arg4);
+    if(!is_error(ret))
+        byteswap_dirents(arg2, ret);
+    return ret;
+}
+
+long do_lseek(void *cpu_env, int num)
+{
+    long ret;
+    int i = 0;
+    uint32_t arg1 = get_int_arg(&i, cpu_env);
+    uint64_t offset = get_int64_arg(&i, cpu_env);
+    uint32_t arg3 = get_int_arg(&i, cpu_env);
+    uint64_t r = lseek(arg1, offset, arg3);
+#ifdef TARGET_I386
+    /* lowest word in eax, highest in edx */
+    ret = r & 0xffffffff; /* will be set to eax after do_unix_syscall exit */
+    ((CPUX86State *)cpu_env)->regs[R_EDX] = (uint32_t)((r >> 32) & 0xffffffff) ;
+#elif defined TARGET_PPC
+    ret = r & 0xffffffff; /* will be set to r3 after do_unix_syscall exit */
+    ((CPUPPCState *)cpu_env)->gpr[4] = (uint32_t)((r >> 32) & 0xffffffff) ;
+#else
+    qerror("64 bit ret value on your arch?");
+#endif
+    return get_errno(ret);
+}
+
+long do___sysctl(void * arg1, uint32_t arg2, void * arg3, void * arg4, void * arg5, size_t arg6)
+{
+    long ret = 0;
+    int i;
+    DPRINTF("sysctl(%p, 0x%x, %p, %p, %p, 0x%lx)\n",
+            arg1, arg2, arg3, arg4, arg5, arg6);
+    if(arg1) {
+        i = 0;
+        do { *((int *) arg1 + i) = tswap32(*((int *) arg1 + i)); } while (++i < arg2);
+    }
+
+    if(arg4)
+        *(int *) arg4 = tswap32(*(int *) arg4);
+    if(arg1)
+    ret = get_errno(sysctl((void *)arg1, arg2, (void *)arg3, (void *)arg4, (void *)arg5, arg6));
+
+    if ((ret == 0) && (arg2 == 2) && (*((int *) arg1) == 0) && (*((int *) arg1 + 1) == 3)) {
+        /* The output here is the new id - we need to swap it so it can be passed
+        back in (and then unswapped) */
+        int count = (*(int *) arg4) / sizeof(int);
+        i = 0;
+        do {
+            *((int *) arg3 + i) = tswap32(*((int *) arg3 + i));
+        } while (++i < count);
+    }
+    *(int *) arg4 = tswap32(*(int *) arg4);
+
+    return ret;
+}
+
+long do_getattrlist(void * arg1, void * arg2, void * arg3, uint32_t arg4, uint32_t arg5)
+{
+    struct attrlist * attrlist = (void *)arg2;
+    long ret;
+
+#if defined(TARGET_I386) ^ defined(__i386__) || defined(TARGET_PPC) ^ defined(__ppc__)
+    qerror("SYS_getdirentriesattr unimplemented\n");
+#endif
+    /* XXX: don't let the %s stay in there */
+    DPRINTF("getattrlist(%s, %p, %p, 0x%x, 0x%x)\n",
+            (char *)arg1, arg2, arg3, arg4, arg5);
+
+    if(arg2) /* XXX: We should handle that in a copy especially
+        if the structure is not writable */
+        byteswap_attrlist(attrlist);
+
+    ret = get_errno(getattrlist((const char* )arg1, attrlist, (void *)arg3, arg4, arg5));
+
+    if(!is_error(ret))
+    {
+        byteswap_attrbuf((void *)arg3, attrlist);
+        byteswap_attrlist(attrlist);
+    }
+    return ret;
+}
+
+long do_getdirentriesattr(uint32_t arg1, void * arg2, void * arg3, size_t arg4, void * arg5, void * arg6, void* arg7, uint32_t arg8)
+{
+    DPRINTF("getdirentriesattr(0x%x, %p, %p, 0x%lx, %p, %p, %p, 0x%x)\n",
+            arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8);
+#if defined(TARGET_I386) ^ defined(__i386__) || defined(TARGET_PPC) ^ defined(__ppc__)
+    qerror("SYS_getdirentriesattr unimplemented\n");
+#endif
+
+    return get_errno(getdirentriesattr( arg1, (struct attrlist * )arg2, (void *)arg3, arg4,
+                                       (unsigned long *)arg5, (unsigned long *)arg6,
+                                       (unsigned long *)arg7, arg8));
+}
+
+
+long no_syscall(void *cpu_env, int num)
+{
+    /* XXX: We should probably fordward it to the host kernel */
+    qerror("no unix syscall %d\n", num);
+    /* not reached */
+    return -1;
+}
+
+long unimpl_unix_syscall(void *cpu_env, int num)
+{
+    if( (num < 0) || (num > SYS_MAXSYSCALL-1) )
+        qerror("unix syscall %d is out of unix syscall bounds (0-%d) " , num, SYS_MAXSYSCALL-1);
+
+    gemu_log("qemu: Unsupported unix syscall %s %d\n", unix_syscall_table[num].name , num);
+    gdb_handlesig (cpu_env, SIGTRAP);
+    exit(-1);
+}
+
+long do_unix_syscall(void *cpu_env, int num)
+{
+    long ret = 0;
+
+    DPRINTF("unix syscall %d: " , num);
+
+    if( (num < 0) || (num > SYS_MAXSYSCALL-1) )
+        qerror("unix syscall %d is out of unix syscall bounds (0-%d) " , num, SYS_MAXSYSCALL-1);
+
+    DPRINTF("%s [%s]", unix_syscall_table[num].name, unix_syscall_table[num].call_type & CALL_DIRECT ? "direct" : "indirect" );
+    ret = unix_syscall_table[num].function(cpu_env, num);
+
+    if(!(unix_syscall_table[num].call_type & CALL_NOERRNO))
+        ret = get_errno(ret);
+
+    DPRINTF("[returned 0x%x(%d)]\n", (int)ret, (int)ret);
+    return ret;
+}
+
+/* ------------------------------------------------------------
+   syscall_init
+*/
+void syscall_init(void)
+{
+    /* Nothing yet */
+}