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qemu/linux-user/syscall.c
ths 1bc012f65a IPC message translation. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2930 c046a42c-6fe2-441c-8c8c-71466251a162
2007-06-03 14:27:49 +00:00

4623 lines
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/*
* Linux syscalls
*
* Copyright (c) 2003 Fabrice Bellard
*
* 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 <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <elf.h>
#include <endian.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/wait.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/mman.h>
#include <sys/swap.h>
#include <signal.h>
#include <sched.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <sys/poll.h>
#include <sys/times.h>
#include <sys/shm.h>
#include <sys/sem.h>
#include <sys/statfs.h>
#include <utime.h>
#include <sys/sysinfo.h>
//#include <sys/user.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#define termios host_termios
#define winsize host_winsize
#define termio host_termio
#define sgttyb host_sgttyb /* same as target */
#define tchars host_tchars /* same as target */
#define ltchars host_ltchars /* same as target */
#include <linux/termios.h>
#include <linux/unistd.h>
#include <linux/utsname.h>
#include <linux/cdrom.h>
#include <linux/hdreg.h>
#include <linux/soundcard.h>
#include <linux/dirent.h>
#include <linux/kd.h>
#include "qemu.h"
//#define DEBUG
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \
|| defined(TARGET_M68K) || defined(TARGET_SH4)
/* 16 bit uid wrappers emulation */
#define USE_UID16
#endif
//#include <linux/msdos_fs.h>
#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2])
#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2])
#undef _syscall0
#undef _syscall1
#undef _syscall2
#undef _syscall3
#undef _syscall4
#undef _syscall5
#undef _syscall6
#define _syscall0(type,name) \
type name (void) \
{ \
return syscall(__NR_##name); \
}
#define _syscall1(type,name,type1,arg1) \
type name (type1 arg1) \
{ \
return syscall(__NR_##name, arg1); \
}
#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name (type1 arg1,type2 arg2) \
{ \
return syscall(__NR_##name, arg1, arg2); \
}
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
type name (type1 arg1,type2 arg2,type3 arg3) \
{ \
return syscall(__NR_##name, arg1, arg2, arg3); \
}
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
{ \
return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
}
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
type5,arg5) \
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
{ \
return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
}
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
type5,arg5,type6,arg6) \
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
{ \
return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
}
#define __NR_sys_uname __NR_uname
#define __NR_sys_getcwd1 __NR_getcwd
#define __NR_sys_getdents __NR_getdents
#define __NR_sys_getdents64 __NR_getdents64
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
#define __NR_sys_syslog __NR_syslog
#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
#define __NR__llseek __NR_lseek
#endif
#ifdef __NR_gettid
_syscall0(int, gettid)
#else
static int gettid(void) {
return -ENOSYS;
}
#endif
_syscall1(int,sys_uname,struct new_utsname *,buf)
_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
loff_t *, res, uint, wh);
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
#ifdef __NR_exit_group
_syscall1(int,exit_group,int,error_code)
#endif
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
_syscall1(int,set_tid_address,int *,tidptr)
#endif
extern int personality(int);
extern int flock(int, int);
extern int setfsuid(int);
extern int setfsgid(int);
extern int setresuid(uid_t, uid_t, uid_t);
extern int getresuid(uid_t *, uid_t *, uid_t *);
extern int setresgid(gid_t, gid_t, gid_t);
extern int getresgid(gid_t *, gid_t *, gid_t *);
extern int setgroups(int, gid_t *);
/*
* This list is the union of errno values overidden in asm-<arch>/errno.h
* minus the errnos that are not actually generic to all archs.
*/
static uint16_t host_to_target_errno_table[1200] = {
[EIDRM] = TARGET_EIDRM,
[ECHRNG] = TARGET_ECHRNG,
[EL2NSYNC] = TARGET_EL2NSYNC,
[EL3HLT] = TARGET_EL3HLT,
[EL3RST] = TARGET_EL3RST,
[ELNRNG] = TARGET_ELNRNG,
[EUNATCH] = TARGET_EUNATCH,
[ENOCSI] = TARGET_ENOCSI,
[EL2HLT] = TARGET_EL2HLT,
[EDEADLK] = TARGET_EDEADLK,
[ENOLCK] = TARGET_ENOLCK,
[EBADE] = TARGET_EBADE,
[EBADR] = TARGET_EBADR,
[EXFULL] = TARGET_EXFULL,
[ENOANO] = TARGET_ENOANO,
[EBADRQC] = TARGET_EBADRQC,
[EBADSLT] = TARGET_EBADSLT,
[EBFONT] = TARGET_EBFONT,
[ENOSTR] = TARGET_ENOSTR,
[ENODATA] = TARGET_ENODATA,
[ETIME] = TARGET_ETIME,
[ENOSR] = TARGET_ENOSR,
[ENONET] = TARGET_ENONET,
[ENOPKG] = TARGET_ENOPKG,
[EREMOTE] = TARGET_EREMOTE,
[ENOLINK] = TARGET_ENOLINK,
[EADV] = TARGET_EADV,
[ESRMNT] = TARGET_ESRMNT,
[ECOMM] = TARGET_ECOMM,
[EPROTO] = TARGET_EPROTO,
[EDOTDOT] = TARGET_EDOTDOT,
[EMULTIHOP] = TARGET_EMULTIHOP,
[EBADMSG] = TARGET_EBADMSG,
[ENAMETOOLONG] = TARGET_ENAMETOOLONG,
[EOVERFLOW] = TARGET_EOVERFLOW,
[ENOTUNIQ] = TARGET_ENOTUNIQ,
[EBADFD] = TARGET_EBADFD,
[EREMCHG] = TARGET_EREMCHG,
[ELIBACC] = TARGET_ELIBACC,
[ELIBBAD] = TARGET_ELIBBAD,
[ELIBSCN] = TARGET_ELIBSCN,
[ELIBMAX] = TARGET_ELIBMAX,
[ELIBEXEC] = TARGET_ELIBEXEC,
[EILSEQ] = TARGET_EILSEQ,
[ENOSYS] = TARGET_ENOSYS,
[ELOOP] = TARGET_ELOOP,
[ERESTART] = TARGET_ERESTART,
[ESTRPIPE] = TARGET_ESTRPIPE,
[ENOTEMPTY] = TARGET_ENOTEMPTY,
[EUSERS] = TARGET_EUSERS,
[ENOTSOCK] = TARGET_ENOTSOCK,
[EDESTADDRREQ] = TARGET_EDESTADDRREQ,
[EMSGSIZE] = TARGET_EMSGSIZE,
[EPROTOTYPE] = TARGET_EPROTOTYPE,
[ENOPROTOOPT] = TARGET_ENOPROTOOPT,
[EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
[ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
[EOPNOTSUPP] = TARGET_EOPNOTSUPP,
[EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
[EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
[EADDRINUSE] = TARGET_EADDRINUSE,
[EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
[ENETDOWN] = TARGET_ENETDOWN,
[ENETUNREACH] = TARGET_ENETUNREACH,
[ENETRESET] = TARGET_ENETRESET,
[ECONNABORTED] = TARGET_ECONNABORTED,
[ECONNRESET] = TARGET_ECONNRESET,
[ENOBUFS] = TARGET_ENOBUFS,
[EISCONN] = TARGET_EISCONN,
[ENOTCONN] = TARGET_ENOTCONN,
[EUCLEAN] = TARGET_EUCLEAN,
[ENOTNAM] = TARGET_ENOTNAM,
[ENAVAIL] = TARGET_ENAVAIL,
[EISNAM] = TARGET_EISNAM,
[EREMOTEIO] = TARGET_EREMOTEIO,
[ESHUTDOWN] = TARGET_ESHUTDOWN,
[ETOOMANYREFS] = TARGET_ETOOMANYREFS,
[ETIMEDOUT] = TARGET_ETIMEDOUT,
[ECONNREFUSED] = TARGET_ECONNREFUSED,
[EHOSTDOWN] = TARGET_EHOSTDOWN,
[EHOSTUNREACH] = TARGET_EHOSTUNREACH,
[EALREADY] = TARGET_EALREADY,
[EINPROGRESS] = TARGET_EINPROGRESS,
[ESTALE] = TARGET_ESTALE,
[ECANCELED] = TARGET_ECANCELED,
[ENOMEDIUM] = TARGET_ENOMEDIUM,
[EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
[ENOKEY] = TARGET_ENOKEY,
[EKEYEXPIRED] = TARGET_EKEYEXPIRED,
[EKEYREVOKED] = TARGET_EKEYREVOKED,
[EKEYREJECTED] = TARGET_EKEYREJECTED,
[EOWNERDEAD] = TARGET_EOWNERDEAD,
[ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
};
static inline int host_to_target_errno(int err)
{
if(host_to_target_errno_table[err])
return host_to_target_errno_table[err];
return err;
}
static inline long get_errno(long ret)
{
if (ret == -1)
return -host_to_target_errno(errno);
else
return ret;
}
static inline int is_error(long ret)
{
return (unsigned long)ret >= (unsigned long)(-4096);
}
static target_ulong target_brk;
static target_ulong target_original_brk;
void target_set_brk(target_ulong new_brk)
{
target_original_brk = target_brk = new_brk;
}
long do_brk(target_ulong new_brk)
{
target_ulong brk_page;
long mapped_addr;
int new_alloc_size;
if (!new_brk)
return target_brk;
if (new_brk < target_original_brk)
return -ENOMEM;
brk_page = HOST_PAGE_ALIGN(target_brk);
/* If the new brk is less than this, set it and we're done... */
if (new_brk < brk_page) {
target_brk = new_brk;
return target_brk;
}
/* We need to allocate more memory after the brk... */
new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
PROT_READ|PROT_WRITE,
MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
if (is_error(mapped_addr)) {
return mapped_addr;
} else {
target_brk = new_brk;
return target_brk;
}
}
static inline fd_set *target_to_host_fds(fd_set *fds,
target_long *target_fds, int n)
{
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
return (fd_set *)target_fds;
#else
int i, b;
if (target_fds) {
FD_ZERO(fds);
for(i = 0;i < n; i++) {
b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
(i & (TARGET_LONG_BITS - 1))) & 1;
if (b)
FD_SET(i, fds);
}
return fds;
} else {
return NULL;
}
#endif
}
static inline void host_to_target_fds(target_long *target_fds,
fd_set *fds, int n)
{
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
/* nothing to do */
#else
int i, nw, j, k;
target_long v;
if (target_fds) {
nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
k = 0;
for(i = 0;i < nw; i++) {
v = 0;
for(j = 0; j < TARGET_LONG_BITS; j++) {
v |= ((FD_ISSET(k, fds) != 0) << j);
k++;
}
target_fds[i] = tswapl(v);
}
}
#endif
}
#if defined(__alpha__)
#define HOST_HZ 1024
#else
#define HOST_HZ 100
#endif
static inline long host_to_target_clock_t(long ticks)
{
#if HOST_HZ == TARGET_HZ
return ticks;
#else
return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
#endif
}
static inline void host_to_target_rusage(target_ulong target_addr,
const struct rusage *rusage)
{
struct target_rusage *target_rusage;
lock_user_struct(target_rusage, target_addr, 0);
target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
unlock_user_struct(target_rusage, target_addr, 1);
}
static inline void target_to_host_timeval(struct timeval *tv,
target_ulong target_addr)
{
struct target_timeval *target_tv;
lock_user_struct(target_tv, target_addr, 1);
tv->tv_sec = tswapl(target_tv->tv_sec);
tv->tv_usec = tswapl(target_tv->tv_usec);
unlock_user_struct(target_tv, target_addr, 0);
}
static inline void host_to_target_timeval(target_ulong target_addr,
const struct timeval *tv)
{
struct target_timeval *target_tv;
lock_user_struct(target_tv, target_addr, 0);
target_tv->tv_sec = tswapl(tv->tv_sec);
target_tv->tv_usec = tswapl(tv->tv_usec);
unlock_user_struct(target_tv, target_addr, 1);
}
static long do_select(long n,
target_ulong rfd_p, target_ulong wfd_p,
target_ulong efd_p, target_ulong target_tv)
{
fd_set rfds, wfds, efds;
fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
target_long *target_rfds, *target_wfds, *target_efds;
struct timeval tv, *tv_ptr;
long ret;
int ok;
if (rfd_p) {
target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1);
rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
} else {
target_rfds = NULL;
rfds_ptr = NULL;
}
if (wfd_p) {
target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1);
wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
} else {
target_wfds = NULL;
wfds_ptr = NULL;
}
if (efd_p) {
target_efds = lock_user(efd_p, sizeof(target_long) * n, 1);
efds_ptr = target_to_host_fds(&efds, target_efds, n);
} else {
target_efds = NULL;
efds_ptr = NULL;
}
if (target_tv) {
target_to_host_timeval(&tv, target_tv);
tv_ptr = &tv;
} else {
tv_ptr = NULL;
}
ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
ok = !is_error(ret);
if (ok) {
host_to_target_fds(target_rfds, rfds_ptr, n);
host_to_target_fds(target_wfds, wfds_ptr, n);
host_to_target_fds(target_efds, efds_ptr, n);
if (target_tv) {
host_to_target_timeval(target_tv, &tv);
}
}
if (target_rfds)
unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0);
if (target_wfds)
unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0);
if (target_efds)
unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0);
return ret;
}
static inline void target_to_host_sockaddr(struct sockaddr *addr,
target_ulong target_addr,
socklen_t len)
{
struct target_sockaddr *target_saddr;
target_saddr = lock_user(target_addr, len, 1);
memcpy(addr, target_saddr, len);
addr->sa_family = tswap16(target_saddr->sa_family);
unlock_user(target_saddr, target_addr, 0);
}
static inline void host_to_target_sockaddr(target_ulong target_addr,
struct sockaddr *addr,
socklen_t len)
{
struct target_sockaddr *target_saddr;
target_saddr = lock_user(target_addr, len, 0);
memcpy(target_saddr, addr, len);
target_saddr->sa_family = tswap16(addr->sa_family);
unlock_user(target_saddr, target_addr, len);
}
/* ??? Should this also swap msgh->name? */
static inline void target_to_host_cmsg(struct msghdr *msgh,
struct target_msghdr *target_msgh)
{
struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
socklen_t space = 0;
while (cmsg && target_cmsg) {
void *data = CMSG_DATA(cmsg);
void *target_data = TARGET_CMSG_DATA(target_cmsg);
int len = tswapl(target_cmsg->cmsg_len)
- TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
space += CMSG_SPACE(len);
if (space > msgh->msg_controllen) {
space -= CMSG_SPACE(len);
gemu_log("Host cmsg overflow\n");
break;
}
cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
cmsg->cmsg_len = CMSG_LEN(len);
if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
memcpy(data, target_data, len);
} else {
int *fd = (int *)data;
int *target_fd = (int *)target_data;
int i, numfds = len / sizeof(int);
for (i = 0; i < numfds; i++)
fd[i] = tswap32(target_fd[i]);
}
cmsg = CMSG_NXTHDR(msgh, cmsg);
target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
}
msgh->msg_controllen = space;
}
/* ??? Should this also swap msgh->name? */
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
struct msghdr *msgh)
{
struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
socklen_t space = 0;
while (cmsg && target_cmsg) {
void *data = CMSG_DATA(cmsg);
void *target_data = TARGET_CMSG_DATA(target_cmsg);
int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
space += TARGET_CMSG_SPACE(len);
if (space > tswapl(target_msgh->msg_controllen)) {
space -= TARGET_CMSG_SPACE(len);
gemu_log("Target cmsg overflow\n");
break;
}
target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
memcpy(target_data, data, len);
} else {
int *fd = (int *)data;
int *target_fd = (int *)target_data;
int i, numfds = len / sizeof(int);
for (i = 0; i < numfds; i++)
target_fd[i] = tswap32(fd[i]);
}
cmsg = CMSG_NXTHDR(msgh, cmsg);
target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
}
msgh->msg_controllen = tswapl(space);
}
static long do_setsockopt(int sockfd, int level, int optname,
target_ulong optval, socklen_t optlen)
{
int val, ret;
switch(level) {
case SOL_TCP:
/* TCP options all take an 'int' value. */
if (optlen < sizeof(uint32_t))
return -EINVAL;
val = tget32(optval);
ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
break;
case SOL_IP:
switch(optname) {
case IP_TOS:
case IP_TTL:
case IP_HDRINCL:
case IP_ROUTER_ALERT:
case IP_RECVOPTS:
case IP_RETOPTS:
case IP_PKTINFO:
case IP_MTU_DISCOVER:
case IP_RECVERR:
case IP_RECVTOS:
#ifdef IP_FREEBIND
case IP_FREEBIND:
#endif
case IP_MULTICAST_TTL:
case IP_MULTICAST_LOOP:
val = 0;
if (optlen >= sizeof(uint32_t)) {
val = tget32(optval);
} else if (optlen >= 1) {
val = tget8(optval);
}
ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
break;
default:
goto unimplemented;
}
break;
case TARGET_SOL_SOCKET:
switch (optname) {
/* Options with 'int' argument. */
case TARGET_SO_DEBUG:
optname = SO_DEBUG;
break;
case TARGET_SO_REUSEADDR:
optname = SO_REUSEADDR;
break;
case TARGET_SO_TYPE:
optname = SO_TYPE;
break;
case TARGET_SO_ERROR:
optname = SO_ERROR;
break;
case TARGET_SO_DONTROUTE:
optname = SO_DONTROUTE;
break;
case TARGET_SO_BROADCAST:
optname = SO_BROADCAST;
break;
case TARGET_SO_SNDBUF:
optname = SO_SNDBUF;
break;
case TARGET_SO_RCVBUF:
optname = SO_RCVBUF;
break;
case TARGET_SO_KEEPALIVE:
optname = SO_KEEPALIVE;
break;
case TARGET_SO_OOBINLINE:
optname = SO_OOBINLINE;
break;
case TARGET_SO_NO_CHECK:
optname = SO_NO_CHECK;
break;
case TARGET_SO_PRIORITY:
optname = SO_PRIORITY;
break;
#ifdef SO_BSDCOMPAT
case TARGET_SO_BSDCOMPAT:
optname = SO_BSDCOMPAT;
break;
#endif
case TARGET_SO_PASSCRED:
optname = SO_PASSCRED;
break;
case TARGET_SO_TIMESTAMP:
optname = SO_TIMESTAMP;
break;
case TARGET_SO_RCVLOWAT:
optname = SO_RCVLOWAT;
break;
case TARGET_SO_RCVTIMEO:
optname = SO_RCVTIMEO;
break;
case TARGET_SO_SNDTIMEO:
optname = SO_SNDTIMEO;
break;
break;
default:
goto unimplemented;
}
if (optlen < sizeof(uint32_t))
return -EINVAL;
val = tget32(optval);
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
break;
default:
unimplemented:
gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
ret = -ENOSYS;
}
return ret;
}
static long do_getsockopt(int sockfd, int level, int optname,
target_ulong optval, target_ulong optlen)
{
int len, lv, val, ret;
switch(level) {
case TARGET_SOL_SOCKET:
level = SOL_SOCKET;
switch (optname) {
case TARGET_SO_LINGER:
case TARGET_SO_RCVTIMEO:
case TARGET_SO_SNDTIMEO:
case TARGET_SO_PEERCRED:
case TARGET_SO_PEERNAME:
/* These don't just return a single integer */
goto unimplemented;
default:
goto int_case;
}
break;
case SOL_TCP:
/* TCP options all take an 'int' value. */
int_case:
len = tget32(optlen);
if (len < 0)
return -EINVAL;
lv = sizeof(int);
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
if (ret < 0)
return ret;
val = tswap32(val);
if (len > lv)
len = lv;
if (len == 4)
tput32(optval, val);
else
tput8(optval, val);
tput32(optlen, len);
break;
case SOL_IP:
switch(optname) {
case IP_TOS:
case IP_TTL:
case IP_HDRINCL:
case IP_ROUTER_ALERT:
case IP_RECVOPTS:
case IP_RETOPTS:
case IP_PKTINFO:
case IP_MTU_DISCOVER:
case IP_RECVERR:
case IP_RECVTOS:
#ifdef IP_FREEBIND
case IP_FREEBIND:
#endif
case IP_MULTICAST_TTL:
case IP_MULTICAST_LOOP:
len = tget32(optlen);
if (len < 0)
return -EINVAL;
lv = sizeof(int);
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
if (ret < 0)
return ret;
if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
len = 1;
tput32(optlen, len);
tput8(optval, val);
} else {
if (len > sizeof(int))
len = sizeof(int);
tput32(optlen, len);
tput32(optval, val);
}
break;
default:
goto unimplemented;
}
break;
default:
unimplemented:
gemu_log("getsockopt level=%d optname=%d not yet supported\n",
level, optname);
ret = -ENOSYS;
break;
}
return ret;
}
static void lock_iovec(struct iovec *vec, target_ulong target_addr,
int count, int copy)
{
struct target_iovec *target_vec;
target_ulong base;
int i;
target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
for(i = 0;i < count; i++) {
base = tswapl(target_vec[i].iov_base);
vec[i].iov_len = tswapl(target_vec[i].iov_len);
vec[i].iov_base = lock_user(base, vec[i].iov_len, copy);
}
unlock_user (target_vec, target_addr, 0);
}
static void unlock_iovec(struct iovec *vec, target_ulong target_addr,
int count, int copy)
{
struct target_iovec *target_vec;
target_ulong base;
int i;
target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
for(i = 0;i < count; i++) {
base = tswapl(target_vec[i].iov_base);
unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
}
unlock_user (target_vec, target_addr, 0);
}
static long do_socket(int domain, int type, int protocol)
{
#if defined(TARGET_MIPS)
switch(type) {
case TARGET_SOCK_DGRAM:
type = SOCK_DGRAM;
break;
case TARGET_SOCK_STREAM:
type = SOCK_STREAM;
break;
case TARGET_SOCK_RAW:
type = SOCK_RAW;
break;
case TARGET_SOCK_RDM:
type = SOCK_RDM;
break;
case TARGET_SOCK_SEQPACKET:
type = SOCK_SEQPACKET;
break;
case TARGET_SOCK_PACKET:
type = SOCK_PACKET;
break;
}
#endif
return get_errno(socket(domain, type, protocol));
}
static long do_bind(int sockfd, target_ulong target_addr,
socklen_t addrlen)
{
void *addr = alloca(addrlen);
target_to_host_sockaddr(addr, target_addr, addrlen);
return get_errno(bind(sockfd, addr, addrlen));
}
static long do_connect(int sockfd, target_ulong target_addr,
socklen_t addrlen)
{
void *addr = alloca(addrlen);
target_to_host_sockaddr(addr, target_addr, addrlen);
return get_errno(connect(sockfd, addr, addrlen));
}
static long do_sendrecvmsg(int fd, target_ulong target_msg,
int flags, int send)
{
long ret;
struct target_msghdr *msgp;
struct msghdr msg;
int count;
struct iovec *vec;
target_ulong target_vec;
lock_user_struct(msgp, target_msg, 1);
if (msgp->msg_name) {
msg.msg_namelen = tswap32(msgp->msg_namelen);
msg.msg_name = alloca(msg.msg_namelen);
target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
msg.msg_namelen);
} else {
msg.msg_name = NULL;
msg.msg_namelen = 0;
}
msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
msg.msg_control = alloca(msg.msg_controllen);
msg.msg_flags = tswap32(msgp->msg_flags);
count = tswapl(msgp->msg_iovlen);
vec = alloca(count * sizeof(struct iovec));
target_vec = tswapl(msgp->msg_iov);
lock_iovec(vec, target_vec, count, send);
msg.msg_iovlen = count;
msg.msg_iov = vec;
if (send) {
target_to_host_cmsg(&msg, msgp);
ret = get_errno(sendmsg(fd, &msg, flags));
} else {
ret = get_errno(recvmsg(fd, &msg, flags));
if (!is_error(ret))
host_to_target_cmsg(msgp, &msg);
}
unlock_iovec(vec, target_vec, count, !send);
return ret;
}
static long do_accept(int fd, target_ulong target_addr,
target_ulong target_addrlen)
{
socklen_t addrlen = tget32(target_addrlen);
void *addr = alloca(addrlen);
long ret;
ret = get_errno(accept(fd, addr, &addrlen));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, addrlen);
tput32(target_addrlen, addrlen);
}
return ret;
}
static long do_getpeername(int fd, target_ulong target_addr,
target_ulong target_addrlen)
{
socklen_t addrlen = tget32(target_addrlen);
void *addr = alloca(addrlen);
long ret;
ret = get_errno(getpeername(fd, addr, &addrlen));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, addrlen);
tput32(target_addrlen, addrlen);
}
return ret;
}
static long do_getsockname(int fd, target_ulong target_addr,
target_ulong target_addrlen)
{
socklen_t addrlen = tget32(target_addrlen);
void *addr = alloca(addrlen);
long ret;
ret = get_errno(getsockname(fd, addr, &addrlen));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, addrlen);
tput32(target_addrlen, addrlen);
}
return ret;
}
static long do_socketpair(int domain, int type, int protocol,
target_ulong target_tab)
{
int tab[2];
long ret;
ret = get_errno(socketpair(domain, type, protocol, tab));
if (!is_error(ret)) {
tput32(target_tab, tab[0]);
tput32(target_tab + 4, tab[1]);
}
return ret;
}
static long do_sendto(int fd, target_ulong msg, size_t len, int flags,
target_ulong target_addr, socklen_t addrlen)
{
void *addr;
void *host_msg;
long ret;
host_msg = lock_user(msg, len, 1);
if (target_addr) {
addr = alloca(addrlen);
target_to_host_sockaddr(addr, target_addr, addrlen);
ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
} else {
ret = get_errno(send(fd, host_msg, len, flags));
}
unlock_user(host_msg, msg, 0);
return ret;
}
static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags,
target_ulong target_addr, target_ulong target_addrlen)
{
socklen_t addrlen;
void *addr;
void *host_msg;
long ret;
host_msg = lock_user(msg, len, 0);
if (target_addr) {
addrlen = tget32(target_addrlen);
addr = alloca(addrlen);
ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
} else {
addr = NULL; /* To keep compiler quiet. */
ret = get_errno(recv(fd, host_msg, len, flags));
}
if (!is_error(ret)) {
if (target_addr) {
host_to_target_sockaddr(target_addr, addr, addrlen);
tput32(target_addrlen, addrlen);
}
unlock_user(host_msg, msg, len);
} else {
unlock_user(host_msg, msg, 0);
}
return ret;
}
static long do_socketcall(int num, target_ulong vptr)
{
long ret;
const int n = sizeof(target_ulong);
switch(num) {
case SOCKOP_socket:
{
int domain = tgetl(vptr);
int type = tgetl(vptr + n);
int protocol = tgetl(vptr + 2 * n);
ret = do_socket(domain, type, protocol);
}
break;
case SOCKOP_bind:
{
int sockfd = tgetl(vptr);
target_ulong target_addr = tgetl(vptr + n);
socklen_t addrlen = tgetl(vptr + 2 * n);
ret = do_bind(sockfd, target_addr, addrlen);
}
break;
case SOCKOP_connect:
{
int sockfd = tgetl(vptr);
target_ulong target_addr = tgetl(vptr + n);
socklen_t addrlen = tgetl(vptr + 2 * n);
ret = do_connect(sockfd, target_addr, addrlen);
}
break;
case SOCKOP_listen:
{
int sockfd = tgetl(vptr);
int backlog = tgetl(vptr + n);
ret = get_errno(listen(sockfd, backlog));
}
break;
case SOCKOP_accept:
{
int sockfd = tgetl(vptr);
target_ulong target_addr = tgetl(vptr + n);
target_ulong target_addrlen = tgetl(vptr + 2 * n);
ret = do_accept(sockfd, target_addr, target_addrlen);
}
break;
case SOCKOP_getsockname:
{
int sockfd = tgetl(vptr);
target_ulong target_addr = tgetl(vptr + n);
target_ulong target_addrlen = tgetl(vptr + 2 * n);
ret = do_getsockname(sockfd, target_addr, target_addrlen);
}
break;
case SOCKOP_getpeername:
{
int sockfd = tgetl(vptr);
target_ulong target_addr = tgetl(vptr + n);
target_ulong target_addrlen = tgetl(vptr + 2 * n);
ret = do_getpeername(sockfd, target_addr, target_addrlen);
}
break;
case SOCKOP_socketpair:
{
int domain = tgetl(vptr);
int type = tgetl(vptr + n);
int protocol = tgetl(vptr + 2 * n);
target_ulong tab = tgetl(vptr + 3 * n);
ret = do_socketpair(domain, type, protocol, tab);
}
break;
case SOCKOP_send:
{
int sockfd = tgetl(vptr);
target_ulong msg = tgetl(vptr + n);
size_t len = tgetl(vptr + 2 * n);
int flags = tgetl(vptr + 3 * n);
ret = do_sendto(sockfd, msg, len, flags, 0, 0);
}
break;
case SOCKOP_recv:
{
int sockfd = tgetl(vptr);
target_ulong msg = tgetl(vptr + n);
size_t len = tgetl(vptr + 2 * n);
int flags = tgetl(vptr + 3 * n);
ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
}
break;
case SOCKOP_sendto:
{
int sockfd = tgetl(vptr);
target_ulong msg = tgetl(vptr + n);
size_t len = tgetl(vptr + 2 * n);
int flags = tgetl(vptr + 3 * n);
target_ulong addr = tgetl(vptr + 4 * n);
socklen_t addrlen = tgetl(vptr + 5 * n);
ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
}
break;
case SOCKOP_recvfrom:
{
int sockfd = tgetl(vptr);
target_ulong msg = tgetl(vptr + n);
size_t len = tgetl(vptr + 2 * n);
int flags = tgetl(vptr + 3 * n);
target_ulong addr = tgetl(vptr + 4 * n);
target_ulong addrlen = tgetl(vptr + 5 * n);
ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
}
break;
case SOCKOP_shutdown:
{
int sockfd = tgetl(vptr);
int how = tgetl(vptr + n);
ret = get_errno(shutdown(sockfd, how));
}
break;
case SOCKOP_sendmsg:
case SOCKOP_recvmsg:
{
int fd;
target_ulong target_msg;
int flags;
fd = tgetl(vptr);
target_msg = tgetl(vptr + n);
flags = tgetl(vptr + 2 * n);
ret = do_sendrecvmsg(fd, target_msg, flags,
(num == SOCKOP_sendmsg));
}
break;
case SOCKOP_setsockopt:
{
int sockfd = tgetl(vptr);
int level = tgetl(vptr + n);
int optname = tgetl(vptr + 2 * n);
target_ulong optval = tgetl(vptr + 3 * n);
socklen_t optlen = tgetl(vptr + 4 * n);
ret = do_setsockopt(sockfd, level, optname, optval, optlen);
}
break;
case SOCKOP_getsockopt:
{
int sockfd = tgetl(vptr);
int level = tgetl(vptr + n);
int optname = tgetl(vptr + 2 * n);
target_ulong optval = tgetl(vptr + 3 * n);
target_ulong poptlen = tgetl(vptr + 4 * n);
ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
}
break;
default:
gemu_log("Unsupported socketcall: %d\n", num);
ret = -ENOSYS;
break;
}
return ret;
}
#define N_SHM_REGIONS 32
static struct shm_region {
uint32_t start;
uint32_t size;
} shm_regions[N_SHM_REGIONS];
struct target_ipc_perm
{
target_long __key;
target_ulong uid;
target_ulong gid;
target_ulong cuid;
target_ulong cgid;
unsigned short int mode;
unsigned short int __pad1;
unsigned short int __seq;
unsigned short int __pad2;
target_ulong __unused1;
target_ulong __unused2;
};
struct target_semid_ds
{
struct target_ipc_perm sem_perm;
target_ulong sem_otime;
target_ulong __unused1;
target_ulong sem_ctime;
target_ulong __unused2;
target_ulong sem_nsems;
target_ulong __unused3;
target_ulong __unused4;
};
static inline void target_to_host_ipc_perm(struct ipc_perm *host_ip,
target_ulong target_addr)
{
struct target_ipc_perm *target_ip;
struct target_semid_ds *target_sd;
lock_user_struct(target_sd, target_addr, 1);
target_ip=&(target_sd->sem_perm);
host_ip->__key = tswapl(target_ip->__key);
host_ip->uid = tswapl(target_ip->uid);
host_ip->gid = tswapl(target_ip->gid);
host_ip->cuid = tswapl(target_ip->cuid);
host_ip->cgid = tswapl(target_ip->cgid);
host_ip->mode = tswapl(target_ip->mode);
unlock_user_struct(target_sd, target_addr, 0);
}
static inline void host_to_target_ipc_perm(target_ulong target_addr,
struct ipc_perm *host_ip)
{
struct target_ipc_perm *target_ip;
struct target_semid_ds *target_sd;
lock_user_struct(target_sd, target_addr, 0);
target_ip = &(target_sd->sem_perm);
target_ip->__key = tswapl(host_ip->__key);
target_ip->uid = tswapl(host_ip->uid);
target_ip->gid = tswapl(host_ip->gid);
target_ip->cuid = tswapl(host_ip->cuid);
target_ip->cgid = tswapl(host_ip->cgid);
target_ip->mode = tswapl(host_ip->mode);
unlock_user_struct(target_sd, target_addr, 1);
}
static inline void target_to_host_semid_ds(struct semid_ds *host_sd,
target_ulong target_addr)
{
struct target_semid_ds *target_sd;
lock_user_struct(target_sd, target_addr, 1);
target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr);
host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
host_sd->sem_otime = tswapl(target_sd->sem_otime);
host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
unlock_user_struct(target_sd, target_addr, 0);
}
static inline void host_to_target_semid_ds(target_ulong target_addr,
struct semid_ds *host_sd)
{
struct target_semid_ds *target_sd;
lock_user_struct(target_sd, target_addr, 0);
host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm));
target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
target_sd->sem_otime = tswapl(host_sd->sem_otime);
target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
unlock_user_struct(target_sd, target_addr, 1);
}
union semun {
int val;
struct semid_ds *buf;
unsigned short *array;
};
union target_semun {
int val;
target_long buf;
unsigned short int *array;
};
static inline void target_to_host_semun(unsigned long cmd,
union semun *host_su,
target_ulong target_addr,
struct semid_ds *ds)
{
union target_semun *target_su;
switch( cmd ) {
case IPC_STAT:
case IPC_SET:
lock_user_struct(target_su, target_addr, 1);
target_to_host_semid_ds(ds,target_su->buf);
host_su->buf = ds;
unlock_user_struct(target_su, target_addr, 0);
break;
case GETVAL:
case SETVAL:
lock_user_struct(target_su, target_addr, 1);
host_su->val = tswapl(target_su->val);
unlock_user_struct(target_su, target_addr, 0);
break;
case GETALL:
case SETALL:
lock_user_struct(target_su, target_addr, 1);
*host_su->array = tswap16(*target_su->array);
unlock_user_struct(target_su, target_addr, 0);
break;
default:
gemu_log("semun operation not fully supported: %d\n", (int)cmd);
}
}
static inline void host_to_target_semun(unsigned long cmd,
target_ulong target_addr,
union semun *host_su,
struct semid_ds *ds)
{
union target_semun *target_su;
switch( cmd ) {
case IPC_STAT:
case IPC_SET:
lock_user_struct(target_su, target_addr, 0);
host_to_target_semid_ds(target_su->buf,ds);
unlock_user_struct(target_su, target_addr, 1);
break;
case GETVAL:
case SETVAL:
lock_user_struct(target_su, target_addr, 0);
target_su->val = tswapl(host_su->val);
unlock_user_struct(target_su, target_addr, 1);
break;
case GETALL:
case SETALL:
lock_user_struct(target_su, target_addr, 0);
*target_su->array = tswap16(*host_su->array);
unlock_user_struct(target_su, target_addr, 1);
break;
default:
gemu_log("semun operation not fully supported: %d\n", (int)cmd);
}
}
static inline long do_semctl(long first, long second, long third, long ptr)
{
union semun arg;
struct semid_ds dsarg;
int cmd = third&0xff;
long ret = 0;
switch( cmd ) {
case GETVAL:
target_to_host_semun(cmd,&arg,ptr,&dsarg);
ret = get_errno(semctl(first, second, cmd, arg));
host_to_target_semun(cmd,ptr,&arg,&dsarg);
break;
case SETVAL:
target_to_host_semun(cmd,&arg,ptr,&dsarg);
ret = get_errno(semctl(first, second, cmd, arg));
host_to_target_semun(cmd,ptr,&arg,&dsarg);
break;
case GETALL:
target_to_host_semun(cmd,&arg,ptr,&dsarg);
ret = get_errno(semctl(first, second, cmd, arg));
host_to_target_semun(cmd,ptr,&arg,&dsarg);
break;
case SETALL:
target_to_host_semun(cmd,&arg,ptr,&dsarg);
ret = get_errno(semctl(first, second, cmd, arg));
host_to_target_semun(cmd,ptr,&arg,&dsarg);
break;
case IPC_STAT:
target_to_host_semun(cmd,&arg,ptr,&dsarg);
ret = get_errno(semctl(first, second, cmd, arg));
host_to_target_semun(cmd,ptr,&arg,&dsarg);
break;
case IPC_SET:
target_to_host_semun(cmd,&arg,ptr,&dsarg);
ret = get_errno(semctl(first, second, cmd, arg));
host_to_target_semun(cmd,ptr,&arg,&dsarg);
break;
default:
ret = get_errno(semctl(first, second, cmd, arg));
}
return ret;
}
struct target_msqid_ds
{
struct target_ipc_perm msg_perm;
target_ulong msg_stime;
target_ulong __unused1;
target_ulong msg_rtime;
target_ulong __unused2;
target_ulong msg_ctime;
target_ulong __unused3;
target_ulong __msg_cbytes;
target_ulong msg_qnum;
target_ulong msg_qbytes;
target_ulong msg_lspid;
target_ulong msg_lrpid;
target_ulong __unused4;
target_ulong __unused5;
};
static inline void target_to_host_msqid_ds(struct msqid_ds *host_md,
target_ulong target_addr)
{
struct target_msqid_ds *target_md;
lock_user_struct(target_md, target_addr, 1);
target_to_host_ipc_perm(&(host_md->msg_perm),target_addr);
host_md->msg_stime = tswapl(target_md->msg_stime);
host_md->msg_rtime = tswapl(target_md->msg_rtime);
host_md->msg_ctime = tswapl(target_md->msg_ctime);
host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
host_md->msg_qnum = tswapl(target_md->msg_qnum);
host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
host_md->msg_lspid = tswapl(target_md->msg_lspid);
host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
unlock_user_struct(target_md, target_addr, 0);
}
static inline void host_to_target_msqid_ds(target_ulong target_addr,
struct msqid_ds *host_md)
{
struct target_msqid_ds *target_md;
lock_user_struct(target_md, target_addr, 0);
host_to_target_ipc_perm(target_addr,&(host_md->msg_perm));
target_md->msg_stime = tswapl(host_md->msg_stime);
target_md->msg_rtime = tswapl(host_md->msg_rtime);
target_md->msg_ctime = tswapl(host_md->msg_ctime);
target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
target_md->msg_qnum = tswapl(host_md->msg_qnum);
target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
target_md->msg_lspid = tswapl(host_md->msg_lspid);
target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
unlock_user_struct(target_md, target_addr, 1);
}
static inline long do_msgctl(long first, long second, long ptr)
{
struct msqid_ds dsarg;
int cmd = second&0xff;
long ret = 0;
switch( cmd ) {
case IPC_STAT:
case IPC_SET:
target_to_host_msqid_ds(&dsarg,ptr);
ret = get_errno(msgctl(first, cmd, &dsarg));
host_to_target_msqid_ds(ptr,&dsarg);
default:
ret = get_errno(msgctl(first, cmd, &dsarg));
}
return ret;
}
struct target_msgbuf {
target_ulong mtype;
char mtext[1];
};
static inline long do_msgsnd(long msqid, long msgp, long msgsz, long msgflg)
{
struct target_msgbuf *target_mb;
struct msgbuf *host_mb;
long ret = 0;
lock_user_struct(target_mb,msgp,0);
host_mb = malloc(msgsz+sizeof(long));
host_mb->mtype = tswapl(target_mb->mtype);
memcpy(host_mb->mtext,target_mb->mtext,msgsz);
ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
free(host_mb);
unlock_user_struct(target_mb, msgp, 0);
return ret;
}
static inline long do_msgrcv(long msqid, long msgp, long msgsz, long msgtype, long msgflg)
{
struct target_msgbuf *target_mb;
struct msgbuf *host_mb;
long ret = 0;
lock_user_struct(target_mb, msgp, 0);
host_mb = malloc(msgsz+sizeof(long));
ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg));
if (ret > 0)
memcpy(target_mb->mtext, host_mb->mtext, ret);
target_mb->mtype = tswapl(host_mb->mtype);
free(host_mb);
unlock_user_struct(target_mb, msgp, 0);
return ret;
}
/* ??? This only works with linear mappings. */
static long do_ipc(long call, long first, long second, long third,
long ptr, long fifth)
{
int version;
long ret = 0;
unsigned long raddr;
struct shmid_ds shm_info;
int i;
version = call >> 16;
call &= 0xffff;
switch (call) {
case IPCOP_semop:
ret = get_errno(semop(first,(struct sembuf *) ptr, second));
break;
case IPCOP_semget:
ret = get_errno(semget(first, second, third));
break;
case IPCOP_semctl:
ret = do_semctl(first, second, third, ptr);
break;
case IPCOP_semtimedop:
gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
ret = -ENOSYS;
break;
case IPCOP_msgget:
ret = get_errno(msgget(first, second));
break;
case IPCOP_msgsnd:
ret = do_msgsnd(first, ptr, second, third);
break;
case IPCOP_msgctl:
ret = do_msgctl(first, second, ptr);
break;
case IPCOP_msgrcv:
{
struct ipc_kludge
{
void *__unbounded msgp;
long int msgtyp;
};
struct ipc_kludge *foo = (struct ipc_kludge *) ptr;
struct msgbuf *msgp = (struct msgbuf *) foo->msgp;
ret = do_msgrcv(first, (long)msgp, second, 0, third);
}
break;
case IPCOP_shmat:
/* SHM_* flags are the same on all linux platforms */
ret = get_errno((long) shmat(first, (void *) ptr, second));
if (is_error(ret))
break;
raddr = ret;
/* find out the length of the shared memory segment */
ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
if (is_error(ret)) {
/* can't get length, bail out */
shmdt((void *) raddr);
break;
}
page_set_flags(raddr, raddr + shm_info.shm_segsz,
PAGE_VALID | PAGE_READ |
((second & SHM_RDONLY)? 0: PAGE_WRITE));
for (i = 0; i < N_SHM_REGIONS; ++i) {
if (shm_regions[i].start == 0) {
shm_regions[i].start = raddr;
shm_regions[i].size = shm_info.shm_segsz;
break;
}
}
if (put_user(raddr, (uint32_t *)third))
return -EFAULT;
ret = 0;
break;
case IPCOP_shmdt:
for (i = 0; i < N_SHM_REGIONS; ++i) {
if (shm_regions[i].start == ptr) {
shm_regions[i].start = 0;
page_set_flags(ptr, shm_regions[i].size, 0);
break;
}
}
ret = get_errno(shmdt((void *) ptr));
break;
case IPCOP_shmget:
/* IPC_* flag values are the same on all linux platforms */
ret = get_errno(shmget(first, second, third));
break;
/* IPC_* and SHM_* command values are the same on all linux platforms */
case IPCOP_shmctl:
switch(second) {
case IPC_RMID:
case SHM_LOCK:
case SHM_UNLOCK:
ret = get_errno(shmctl(first, second, NULL));
break;
default:
goto unimplemented;
}
break;
default:
unimplemented:
gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
ret = -ENOSYS;
break;
}
return ret;
}
/* kernel structure types definitions */
#define IFNAMSIZ 16
#define STRUCT(name, list...) STRUCT_ ## name,
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
enum {
#include "syscall_types.h"
};
#undef STRUCT
#undef STRUCT_SPECIAL
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
#define STRUCT_SPECIAL(name)
#include "syscall_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...) \
{ TARGET_ ## 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;
long 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;
}
bitmask_transtbl iflag_tbl[] = {
{ TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
{ TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
{ TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
{ TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
{ TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
{ TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
{ TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
{ TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
{ TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
{ TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
{ TARGET_IXON, TARGET_IXON, IXON, IXON },
{ TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
{ TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
{ TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
{ 0, 0, 0, 0 }
};
bitmask_transtbl oflag_tbl[] = {
{ TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
{ TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
{ TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
{ TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
{ TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
{ TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
{ TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
{ TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
{ TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
{ TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
{ TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
{ TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
{ TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
{ TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
{ TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
{ TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
{ TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
{ TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
{ TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
{ TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
{ TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
{ TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
{ TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
{ TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
{ 0, 0, 0, 0 }
};
bitmask_transtbl cflag_tbl[] = {
{ TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
{ TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
{ TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
{ TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
{ TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
{ TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
{ TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
{ TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
{ TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
{ TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
{ TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
{ TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
{ TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
{ TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
{ TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
{ TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
{ TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
{ TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
{ TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
{ TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
{ TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
{ TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
{ TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
{ TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
{ TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
{ TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
{ TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
{ TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
{ TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
{ TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
{ TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
{ 0, 0, 0, 0 }
};
bitmask_transtbl lflag_tbl[] = {
{ TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
{ TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
{ TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
{ TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
{ TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
{ TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
{ TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
{ TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
{ TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
{ TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
{ TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
{ TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
{ TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
{ TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
{ TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
{ 0, 0, 0, 0 }
};
static void target_to_host_termios (void *dst, const void *src)
{
struct host_termios *host = dst;
const struct target_termios *target = src;
host->c_iflag =
target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
host->c_oflag =
target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
host->c_cflag =
target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
host->c_lflag =
target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
host->c_line = target->c_line;
host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
}
static void host_to_target_termios (void *dst, const void *src)
{
struct target_termios *target = dst;
const struct host_termios *host = src;
target->c_iflag =
tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
target->c_oflag =
tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
target->c_cflag =
tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
target->c_lflag =
tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
target->c_line = host->c_line;
target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
}
StructEntry struct_termios_def = {
.convert = { host_to_target_termios, target_to_host_termios },
.size = { sizeof(struct target_termios), sizeof(struct host_termios) },
.align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
};
static bitmask_transtbl mmap_flags_tbl[] = {
{ TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
{ TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
{ TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
{ TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
{ TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
{ TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
{ TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
{ TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
{ 0, 0, 0, 0 }
};
static bitmask_transtbl fcntl_flags_tbl[] = {
{ TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
{ TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
{ TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
{ TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
{ TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
{ TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
{ TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
{ TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
{ TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
{ TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
{ TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
{ TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
{ TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
#if defined(O_DIRECT)
{ TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
#endif
{ 0, 0, 0, 0 }
};
#if defined(TARGET_I386)
/* NOTE: there is really one LDT for all the threads */
uint8_t *ldt_table;
static int read_ldt(target_ulong ptr, unsigned long bytecount)
{
int size;
void *p;
if (!ldt_table)
return 0;
size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
if (size > bytecount)
size = bytecount;
p = lock_user(ptr, size, 0);
/* ??? Shoudl this by byteswapped? */
memcpy(p, ldt_table, size);
unlock_user(p, ptr, size);
return size;
}
/* XXX: add locking support */
static int write_ldt(CPUX86State *env,
target_ulong ptr, unsigned long bytecount, int oldmode)
{
struct target_modify_ldt_ldt_s ldt_info;
struct target_modify_ldt_ldt_s *target_ldt_info;
int seg_32bit, contents, read_exec_only, limit_in_pages;
int seg_not_present, useable;
uint32_t *lp, entry_1, entry_2;
if (bytecount != sizeof(ldt_info))
return -EINVAL;
lock_user_struct(target_ldt_info, ptr, 1);
ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
ldt_info.limit = tswap32(target_ldt_info->limit);
ldt_info.flags = tswap32(target_ldt_info->flags);
unlock_user_struct(target_ldt_info, ptr, 0);
if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
return -EINVAL;
seg_32bit = ldt_info.flags & 1;
contents = (ldt_info.flags >> 1) & 3;
read_exec_only = (ldt_info.flags >> 3) & 1;
limit_in_pages = (ldt_info.flags >> 4) & 1;
seg_not_present = (ldt_info.flags >> 5) & 1;
useable = (ldt_info.flags >> 6) & 1;
if (contents == 3) {
if (oldmode)
return -EINVAL;
if (seg_not_present == 0)
return -EINVAL;
}
/* allocate the LDT */
if (!ldt_table) {
ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
if (!ldt_table)
return -ENOMEM;
memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
env->ldt.base = h2g(ldt_table);
env->ldt.limit = 0xffff;
}
/* NOTE: same code as Linux kernel */
/* Allow LDTs to be cleared by the user. */
if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
if (oldmode ||
(contents == 0 &&
read_exec_only == 1 &&
seg_32bit == 0 &&
limit_in_pages == 0 &&
seg_not_present == 1 &&
useable == 0 )) {
entry_1 = 0;
entry_2 = 0;
goto install;
}
}
entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
(ldt_info.limit & 0x0ffff);
entry_2 = (ldt_info.base_addr & 0xff000000) |
((ldt_info.base_addr & 0x00ff0000) >> 16) |
(ldt_info.limit & 0xf0000) |
((read_exec_only ^ 1) << 9) |
(contents << 10) |
((seg_not_present ^ 1) << 15) |
(seg_32bit << 22) |
(limit_in_pages << 23) |
0x7000;
if (!oldmode)
entry_2 |= (useable << 20);
/* Install the new entry ... */
install:
lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
lp[0] = tswap32(entry_1);
lp[1] = tswap32(entry_2);
return 0;
}
/* specific and weird i386 syscalls */
int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount)
{
int ret = -ENOSYS;
switch (func) {
case 0:
ret = read_ldt(ptr, bytecount);
break;
case 1:
ret = write_ldt(env, ptr, bytecount, 1);
break;
case 0x11:
ret = write_ldt(env, ptr, bytecount, 0);
break;
}
return ret;
}
#endif /* defined(TARGET_I386) */
/* this stack is the equivalent of the kernel stack associated with a
thread/process */
#define NEW_STACK_SIZE 8192
static int clone_func(void *arg)
{
CPUState *env = arg;
cpu_loop(env);
/* never exits */
return 0;
}
int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
{
int ret;
TaskState *ts;
uint8_t *new_stack;
CPUState *new_env;
if (flags & CLONE_VM) {
ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
memset(ts, 0, sizeof(TaskState));
new_stack = ts->stack;
ts->used = 1;
/* add in task state list */
ts->next = first_task_state;
first_task_state = ts;
/* we create a new CPU instance. */
new_env = cpu_copy(env);
#if defined(TARGET_I386)
if (!newsp)
newsp = env->regs[R_ESP];
new_env->regs[R_ESP] = newsp;
new_env->regs[R_EAX] = 0;
#elif defined(TARGET_ARM)
if (!newsp)
newsp = env->regs[13];
new_env->regs[13] = newsp;
new_env->regs[0] = 0;
#elif defined(TARGET_SPARC)
if (!newsp)
newsp = env->regwptr[22];
new_env->regwptr[22] = newsp;
new_env->regwptr[0] = 0;
/* XXXXX */
printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
#elif defined(TARGET_M68K)
if (!newsp)
newsp = env->aregs[7];
new_env->aregs[7] = newsp;
new_env->dregs[0] = 0;
/* ??? is this sufficient? */
#elif defined(TARGET_MIPS)
if (!newsp)
newsp = env->gpr[29];
new_env->gpr[29] = newsp;
#elif defined(TARGET_PPC)
if (!newsp)
newsp = env->gpr[1];
new_env->gpr[1] = newsp;
{
int i;
for (i = 7; i < 32; i++)
new_env->gpr[i] = 0;
}
#elif defined(TARGET_SH4)
if (!newsp)
newsp = env->gregs[15];
new_env->gregs[15] = newsp;
/* XXXXX */
#elif defined(TARGET_ALPHA)
if (!newsp)
newsp = env->ir[30];
new_env->ir[30] = newsp;
/* ? */
{
int i;
for (i = 7; i < 30; i++)
new_env->ir[i] = 0;
}
#else
#error unsupported target CPU
#endif
new_env->opaque = ts;
#ifdef __ia64__
ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
#else
ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
#endif
} else {
/* if no CLONE_VM, we consider it is a fork */
if ((flags & ~CSIGNAL) != 0)
return -EINVAL;
ret = fork();
}
return ret;
}
static long do_fcntl(int fd, int cmd, target_ulong arg)
{
struct flock fl;
struct target_flock *target_fl;
struct flock64 fl64;
struct target_flock64 *target_fl64;
long ret;
switch(cmd) {
case TARGET_F_GETLK:
lock_user_struct(target_fl, arg, 1);
fl.l_type = tswap16(target_fl->l_type);
fl.l_whence = tswap16(target_fl->l_whence);
fl.l_start = tswapl(target_fl->l_start);
fl.l_len = tswapl(target_fl->l_len);
fl.l_pid = tswapl(target_fl->l_pid);
unlock_user_struct(target_fl, arg, 0);
ret = fcntl(fd, cmd, &fl);
if (ret == 0) {
lock_user_struct(target_fl, arg, 0);
target_fl->l_type = tswap16(fl.l_type);
target_fl->l_whence = tswap16(fl.l_whence);
target_fl->l_start = tswapl(fl.l_start);
target_fl->l_len = tswapl(fl.l_len);
target_fl->l_pid = tswapl(fl.l_pid);
unlock_user_struct(target_fl, arg, 1);
}
break;
case TARGET_F_SETLK:
case TARGET_F_SETLKW:
lock_user_struct(target_fl, arg, 1);
fl.l_type = tswap16(target_fl->l_type);
fl.l_whence = tswap16(target_fl->l_whence);
fl.l_start = tswapl(target_fl->l_start);
fl.l_len = tswapl(target_fl->l_len);
fl.l_pid = tswapl(target_fl->l_pid);
unlock_user_struct(target_fl, arg, 0);
ret = fcntl(fd, cmd, &fl);
break;
case TARGET_F_GETLK64:
lock_user_struct(target_fl64, arg, 1);
fl64.l_type = tswap16(target_fl64->l_type) >> 1;
fl64.l_whence = tswap16(target_fl64->l_whence);
fl64.l_start = tswapl(target_fl64->l_start);
fl64.l_len = tswapl(target_fl64->l_len);
fl64.l_pid = tswap16(target_fl64->l_pid);
unlock_user_struct(target_fl64, arg, 0);
ret = fcntl(fd, cmd >> 1, &fl64);
if (ret == 0) {
lock_user_struct(target_fl64, arg, 0);
target_fl64->l_type = tswap16(fl64.l_type) >> 1;
target_fl64->l_whence = tswap16(fl64.l_whence);
target_fl64->l_start = tswapl(fl64.l_start);
target_fl64->l_len = tswapl(fl64.l_len);
target_fl64->l_pid = tswapl(fl64.l_pid);
unlock_user_struct(target_fl64, arg, 1);
}
break;
case TARGET_F_SETLK64:
case TARGET_F_SETLKW64:
lock_user_struct(target_fl64, arg, 1);
fl64.l_type = tswap16(target_fl64->l_type) >> 1;
fl64.l_whence = tswap16(target_fl64->l_whence);
fl64.l_start = tswapl(target_fl64->l_start);
fl64.l_len = tswapl(target_fl64->l_len);
fl64.l_pid = tswap16(target_fl64->l_pid);
unlock_user_struct(target_fl64, arg, 0);
ret = fcntl(fd, cmd >> 1, &fl64);
break;
case F_GETFL:
ret = fcntl(fd, cmd, arg);
ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
break;
case F_SETFL:
ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
break;
default:
ret = fcntl(fd, cmd, arg);
break;
}
return ret;
}
#ifdef USE_UID16
static inline int high2lowuid(int uid)
{
if (uid > 65535)
return 65534;
else
return uid;
}
static inline int high2lowgid(int gid)
{
if (gid > 65535)
return 65534;
else
return gid;
}
static inline int low2highuid(int uid)
{
if ((int16_t)uid == -1)
return -1;
else
return uid;
}
static inline int low2highgid(int gid)
{
if ((int16_t)gid == -1)
return -1;
else
return gid;
}
#endif /* USE_UID16 */
void syscall_init(void)
{
IOCTLEntry *ie;
const argtype *arg_type;
int size;
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
#include "syscall_types.h"
#undef STRUCT
#undef STRUCT_SPECIAL
/* we patch the ioctl size if necessary. We rely on the fact that
no ioctl has all the bits at '1' in the size field */
ie = ioctl_entries;
while (ie->target_cmd != 0) {
if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
TARGET_IOC_SIZEMASK) {
arg_type = ie->arg_type;
if (arg_type[0] != TYPE_PTR) {
fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
ie->target_cmd);
exit(1);
}
arg_type++;
size = thunk_type_size(arg_type, 0);
ie->target_cmd = (ie->target_cmd &
~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
(size << TARGET_IOC_SIZESHIFT);
}
/* automatic consistency check if same arch */
#if defined(__i386__) && defined(TARGET_I386)
if (ie->target_cmd != ie->host_cmd) {
fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
ie->target_cmd, ie->host_cmd);
}
#endif
ie++;
}
}
static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
{
#ifdef TARGET_WORDS_BIG_ENDIAN
return ((uint64_t)word0 << 32) | word1;
#else
return ((uint64_t)word1 << 32) | word0;
#endif
}
#ifdef TARGET_NR_truncate64
static inline long target_truncate64(void *cpu_env, const char *arg1,
long arg2, long arg3, long arg4)
{
#ifdef TARGET_ARM
if (((CPUARMState *)cpu_env)->eabi)
{
arg2 = arg3;
arg3 = arg4;
}
#endif
return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
}
#endif
#ifdef TARGET_NR_ftruncate64
static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2,
long arg3, long arg4)
{
#ifdef TARGET_ARM
if (((CPUARMState *)cpu_env)->eabi)
{
arg2 = arg3;
arg3 = arg4;
}
#endif
return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
}
#endif
static inline void target_to_host_timespec(struct timespec *host_ts,
target_ulong target_addr)
{
struct target_timespec *target_ts;
lock_user_struct(target_ts, target_addr, 1);
host_ts->tv_sec = tswapl(target_ts->tv_sec);
host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
unlock_user_struct(target_ts, target_addr, 0);
}
static inline void host_to_target_timespec(target_ulong target_addr,
struct timespec *host_ts)
{
struct target_timespec *target_ts;
lock_user_struct(target_ts, target_addr, 0);
target_ts->tv_sec = tswapl(host_ts->tv_sec);
target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
unlock_user_struct(target_ts, target_addr, 1);
}
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
long arg4, long arg5, long arg6)
{
long ret;
struct stat st;
struct statfs stfs;
void *p;
#ifdef DEBUG
gemu_log("syscall %d", num);
#endif
switch(num) {
case TARGET_NR_exit:
#ifdef HAVE_GPROF
_mcleanup();
#endif
gdb_exit(cpu_env, arg1);
/* XXX: should free thread stack and CPU env */
_exit(arg1);
ret = 0; /* avoid warning */
break;
case TARGET_NR_read:
page_unprotect_range(arg2, arg3);
p = lock_user(arg2, arg3, 0);
ret = get_errno(read(arg1, p, arg3));
unlock_user(p, arg2, ret);
break;
case TARGET_NR_write:
p = lock_user(arg2, arg3, 1);
ret = get_errno(write(arg1, p, arg3));
unlock_user(p, arg2, 0);
break;
case TARGET_NR_open:
p = lock_user_string(arg1);
ret = get_errno(open(path(p),
target_to_host_bitmask(arg2, fcntl_flags_tbl),
arg3));
unlock_user(p, arg1, 0);
break;
case TARGET_NR_close:
ret = get_errno(close(arg1));
break;
case TARGET_NR_brk:
ret = do_brk(arg1);
break;
case TARGET_NR_fork:
ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
break;
#ifdef TARGET_NR_waitpid
case TARGET_NR_waitpid:
{
int status;
ret = get_errno(waitpid(arg1, &status, arg3));
if (!is_error(ret) && arg2)
tput32(arg2, status);
}
break;
#endif
#ifdef TARGET_NR_creat /* not on alpha */
case TARGET_NR_creat:
p = lock_user_string(arg1);
ret = get_errno(creat(p, arg2));
unlock_user(p, arg1, 0);
break;
#endif
case TARGET_NR_link:
{
void * p2;
p = lock_user_string(arg1);
p2 = lock_user_string(arg2);
ret = get_errno(link(p, p2));
unlock_user(p2, arg2, 0);
unlock_user(p, arg1, 0);
}
break;
case TARGET_NR_unlink:
p = lock_user_string(arg1);
ret = get_errno(unlink(p));
unlock_user(p, arg1, 0);
break;
case TARGET_NR_execve:
{
char **argp, **envp;
int argc, envc;
target_ulong gp;
target_ulong guest_argp;
target_ulong guest_envp;
target_ulong addr;
char **q;
argc = 0;
guest_argp = arg2;
for (gp = guest_argp; tgetl(gp); gp++)
argc++;
envc = 0;
guest_envp = arg3;
for (gp = guest_envp; tgetl(gp); gp++)
envc++;
argp = alloca((argc + 1) * sizeof(void *));
envp = alloca((envc + 1) * sizeof(void *));
for (gp = guest_argp, q = argp; ;
gp += sizeof(target_ulong), q++) {
addr = tgetl(gp);
if (!addr)
break;
*q = lock_user_string(addr);
}
*q = NULL;
for (gp = guest_envp, q = envp; ;
gp += sizeof(target_ulong), q++) {
addr = tgetl(gp);
if (!addr)
break;
*q = lock_user_string(addr);
}
*q = NULL;
p = lock_user_string(arg1);
ret = get_errno(execve(p, argp, envp));
unlock_user(p, arg1, 0);
for (gp = guest_argp, q = argp; *q;
gp += sizeof(target_ulong), q++) {
addr = tgetl(gp);
unlock_user(*q, addr, 0);
}
for (gp = guest_envp, q = envp; *q;
gp += sizeof(target_ulong), q++) {
addr = tgetl(gp);
unlock_user(*q, addr, 0);
}
}
break;
case TARGET_NR_chdir:
p = lock_user_string(arg1);
ret = get_errno(chdir(p));
unlock_user(p, arg1, 0);
break;
#ifdef TARGET_NR_time
case TARGET_NR_time:
{
time_t host_time;
ret = get_errno(time(&host_time));
if (!is_error(ret) && arg1)
tputl(arg1, host_time);
}
break;
#endif
case TARGET_NR_mknod:
p = lock_user_string(arg1);
ret = get_errno(mknod(p, arg2, arg3));
unlock_user(p, arg1, 0);
break;
case TARGET_NR_chmod:
p = lock_user_string(arg1);
ret = get_errno(chmod(p, arg2));
unlock_user(p, arg1, 0);
break;
#ifdef TARGET_NR_break
case TARGET_NR_break:
goto unimplemented;
#endif
#ifdef TARGET_NR_oldstat
case TARGET_NR_oldstat:
goto unimplemented;
#endif
case TARGET_NR_lseek:
ret = get_errno(lseek(arg1, arg2, arg3));
break;
#ifdef TARGET_NR_getxpid
case TARGET_NR_getxpid:
#else
case TARGET_NR_getpid:
#endif
ret = get_errno(getpid());
break;
case TARGET_NR_mount:
{
/* need to look at the data field */
void *p2, *p3;
p = lock_user_string(arg1);
p2 = lock_user_string(arg2);
p3 = lock_user_string(arg3);
ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5));
unlock_user(p, arg1, 0);
unlock_user(p2, arg2, 0);
unlock_user(p3, arg3, 0);
break;
}
#ifdef TARGET_NR_umount
case TARGET_NR_umount:
p = lock_user_string(arg1);
ret = get_errno(umount(p));
unlock_user(p, arg1, 0);
break;
#endif
#ifdef TARGET_NR_stime /* not on alpha */
case TARGET_NR_stime:
{
time_t host_time;
host_time = tgetl(arg1);
ret = get_errno(stime(&host_time));
}
break;
#endif
case TARGET_NR_ptrace:
goto unimplemented;
#ifdef TARGET_NR_alarm /* not on alpha */
case TARGET_NR_alarm:
ret = alarm(arg1);
break;
#endif
#ifdef TARGET_NR_oldfstat
case TARGET_NR_oldfstat:
goto unimplemented;
#endif
#ifdef TARGET_NR_pause /* not on alpha */
case TARGET_NR_pause:
ret = get_errno(pause());
break;
#endif
#ifdef TARGET_NR_utime
case TARGET_NR_utime:
{
struct utimbuf tbuf, *host_tbuf;
struct target_utimbuf *target_tbuf;
if (arg2) {
lock_user_struct(target_tbuf, arg2, 1);
tbuf.actime = tswapl(target_tbuf->actime);
tbuf.modtime = tswapl(target_tbuf->modtime);
unlock_user_struct(target_tbuf, arg2, 0);
host_tbuf = &tbuf;
} else {
host_tbuf = NULL;
}
p = lock_user_string(arg1);
ret = get_errno(utime(p, host_tbuf));
unlock_user(p, arg1, 0);
}
break;
#endif
case TARGET_NR_utimes:
{
struct timeval *tvp, tv[2];
if (arg2) {
target_to_host_timeval(&tv[0], arg2);
target_to_host_timeval(&tv[1],
arg2 + sizeof (struct target_timeval));
tvp = tv;
} else {
tvp = NULL;
}
p = lock_user_string(arg1);
ret = get_errno(utimes(p, tvp));
unlock_user(p, arg1, 0);
}
break;
#ifdef TARGET_NR_stty
case TARGET_NR_stty:
goto unimplemented;
#endif
#ifdef TARGET_NR_gtty
case TARGET_NR_gtty:
goto unimplemented;
#endif
case TARGET_NR_access:
p = lock_user_string(arg1);
ret = get_errno(access(p, arg2));
unlock_user(p, arg1, 0);
break;
#ifdef TARGET_NR_nice /* not on alpha */
case TARGET_NR_nice:
ret = get_errno(nice(arg1));
break;
#endif
#ifdef TARGET_NR_ftime
case TARGET_NR_ftime:
goto unimplemented;
#endif
case TARGET_NR_sync:
sync();
ret = 0;
break;
case TARGET_NR_kill:
ret = get_errno(kill(arg1, arg2));
break;
case TARGET_NR_rename:
{
void *p2;
p = lock_user_string(arg1);
p2 = lock_user_string(arg2);
ret = get_errno(rename(p, p2));
unlock_user(p2, arg2, 0);
unlock_user(p, arg1, 0);
}
break;
case TARGET_NR_mkdir:
p = lock_user_string(arg1);
ret = get_errno(mkdir(p, arg2));
unlock_user(p, arg1, 0);
break;
case TARGET_NR_rmdir:
p = lock_user_string(arg1);
ret = get_errno(rmdir(p));
unlock_user(p, arg1, 0);
break;
case TARGET_NR_dup:
ret = get_errno(dup(arg1));
break;
case TARGET_NR_pipe:
{
int host_pipe[2];
ret = get_errno(pipe(host_pipe));
if (!is_error(ret)) {
#if defined(TARGET_MIPS)
((CPUMIPSState*)cpu_env)->gpr[3] = host_pipe[1];
ret = host_pipe[0];
#else
tput32(arg1, host_pipe[0]);
tput32(arg1 + 4, host_pipe[1]);
#endif
}
}
break;
case TARGET_NR_times:
{
struct target_tms *tmsp;
struct tms tms;
ret = get_errno(times(&tms));
if (arg1) {
tmsp = lock_user(arg1, sizeof(struct target_tms), 0);
tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
}
if (!is_error(ret))
ret = host_to_target_clock_t(ret);
}
break;
#ifdef TARGET_NR_prof
case TARGET_NR_prof:
goto unimplemented;
#endif
#ifdef TARGET_NR_signal
case TARGET_NR_signal:
goto unimplemented;
#endif
case TARGET_NR_acct:
p = lock_user_string(arg1);
ret = get_errno(acct(path(p)));
unlock_user(p, arg1, 0);
break;
#ifdef TARGET_NR_umount2 /* not on alpha */
case TARGET_NR_umount2:
p = lock_user_string(arg1);
ret = get_errno(umount2(p, arg2));
unlock_user(p, arg1, 0);
break;
#endif
#ifdef TARGET_NR_lock
case TARGET_NR_lock:
goto unimplemented;
#endif
case TARGET_NR_ioctl:
ret = do_ioctl(arg1, arg2, arg3);
break;
case TARGET_NR_fcntl:
ret = get_errno(do_fcntl(arg1, arg2, arg3));
break;
#ifdef TARGET_NR_mpx
case TARGET_NR_mpx:
goto unimplemented;
#endif
case TARGET_NR_setpgid:
ret = get_errno(setpgid(arg1, arg2));
break;
#ifdef TARGET_NR_ulimit
case TARGET_NR_ulimit:
goto unimplemented;
#endif
#ifdef TARGET_NR_oldolduname
case TARGET_NR_oldolduname:
goto unimplemented;
#endif
case TARGET_NR_umask:
ret = get_errno(umask(arg1));
break;
case TARGET_NR_chroot:
p = lock_user_string(arg1);
ret = get_errno(chroot(p));
unlock_user(p, arg1, 0);
break;
case TARGET_NR_ustat:
goto unimplemented;
case TARGET_NR_dup2:
ret = get_errno(dup2(arg1, arg2));
break;
#ifdef TARGET_NR_getppid /* not on alpha */
case TARGET_NR_getppid:
ret = get_errno(getppid());
break;
#endif
case TARGET_NR_getpgrp:
ret = get_errno(getpgrp());
break;
case TARGET_NR_setsid:
ret = get_errno(setsid());
break;
#ifdef TARGET_NR_sigaction
case TARGET_NR_sigaction:
{
#if !defined(TARGET_MIPS)
struct target_old_sigaction *old_act;
struct target_sigaction act, oact, *pact;
if (arg2) {
lock_user_struct(old_act, arg2, 1);
act._sa_handler = old_act->_sa_handler;
target_siginitset(&act.sa_mask, old_act->sa_mask);
act.sa_flags = old_act->sa_flags;
act.sa_restorer = old_act->sa_restorer;
unlock_user_struct(old_act, arg2, 0);
pact = &act;
} else {
pact = NULL;
}
ret = get_errno(do_sigaction(arg1, pact, &oact));
if (!is_error(ret) && arg3) {
lock_user_struct(old_act, arg3, 0);
old_act->_sa_handler = oact._sa_handler;
old_act->sa_mask = oact.sa_mask.sig[0];
old_act->sa_flags = oact.sa_flags;
old_act->sa_restorer = oact.sa_restorer;
unlock_user_struct(old_act, arg3, 1);
}
#else
struct target_sigaction act, oact, *pact, *old_act;
if (arg2) {
lock_user_struct(old_act, arg2, 1);
act._sa_handler = old_act->_sa_handler;
target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
act.sa_flags = old_act->sa_flags;
unlock_user_struct(old_act, arg2, 0);
pact = &act;
} else {
pact = NULL;
}
ret = get_errno(do_sigaction(arg1, pact, &oact));
if (!is_error(ret) && arg3) {
lock_user_struct(old_act, arg3, 0);
old_act->_sa_handler = oact._sa_handler;
old_act->sa_flags = oact.sa_flags;
old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
old_act->sa_mask.sig[1] = 0;
old_act->sa_mask.sig[2] = 0;
old_act->sa_mask.sig[3] = 0;
unlock_user_struct(old_act, arg3, 1);
}
#endif
}
break;
#endif
case TARGET_NR_rt_sigaction:
{
struct target_sigaction *act;
struct target_sigaction *oact;
if (arg2)
lock_user_struct(act, arg2, 1);
else
act = NULL;
if (arg3)
lock_user_struct(oact, arg3, 0);
else
oact = NULL;
ret = get_errno(do_sigaction(arg1, act, oact));
if (arg2)
unlock_user_struct(act, arg2, 0);
if (arg3)
unlock_user_struct(oact, arg3, 1);
}
break;
#ifdef TARGET_NR_sgetmask /* not on alpha */
case TARGET_NR_sgetmask:
{
sigset_t cur_set;
target_ulong target_set;
sigprocmask(0, NULL, &cur_set);
host_to_target_old_sigset(&target_set, &cur_set);
ret = target_set;
}
break;
#endif
#ifdef TARGET_NR_ssetmask /* not on alpha */
case TARGET_NR_ssetmask:
{
sigset_t set, oset, cur_set;
target_ulong target_set = arg1;
sigprocmask(0, NULL, &cur_set);
target_to_host_old_sigset(&set, &target_set);
sigorset(&set, &set, &cur_set);
sigprocmask(SIG_SETMASK, &set, &oset);
host_to_target_old_sigset(&target_set, &oset);
ret = target_set;
}
break;
#endif
#ifdef TARGET_NR_sigprocmask
case TARGET_NR_sigprocmask:
{
int how = arg1;
sigset_t set, oldset, *set_ptr;
if (arg2) {
switch(how) {
case TARGET_SIG_BLOCK:
how = SIG_BLOCK;
break;
case TARGET_SIG_UNBLOCK:
how = SIG_UNBLOCK;
break;
case TARGET_SIG_SETMASK:
how = SIG_SETMASK;
break;
default:
ret = -EINVAL;
goto fail;
}
p = lock_user(arg2, sizeof(target_sigset_t), 1);
target_to_host_old_sigset(&set, p);
unlock_user(p, arg2, 0);
set_ptr = &set;
} else {
how = 0;
set_ptr = NULL;
}
ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
if (!is_error(ret) && arg3) {
p = lock_user(arg3, sizeof(target_sigset_t), 0);
host_to_target_old_sigset(p, &oldset);
unlock_user(p, arg3, sizeof(target_sigset_t));
}
}
break;
#endif
case TARGET_NR_rt_sigprocmask:
{
int how = arg1;
sigset_t set, oldset, *set_ptr;
if (arg2) {
switch(how) {
case TARGET_SIG_BLOCK:
how = SIG_BLOCK;
break;
case TARGET_SIG_UNBLOCK:
how = SIG_UNBLOCK;
break;
case TARGET_SIG_SETMASK:
how = SIG_SETMASK;
break;
default:
ret = -EINVAL;
goto fail;
}
p = lock_user(arg2, sizeof(target_sigset_t), 1);
target_to_host_sigset(&set, p);
unlock_user(p, arg2, 0);
set_ptr = &set;
} else {
how = 0;
set_ptr = NULL;
}
ret = get_errno(sigprocmask(how, set_ptr, &oldset));
if (!is_error(ret) && arg3) {
p = lock_user(arg3, sizeof(target_sigset_t), 0);
host_to_target_sigset(p, &oldset);
unlock_user(p, arg3, sizeof(target_sigset_t));
}
}
break;
#ifdef TARGET_NR_sigpending
case TARGET_NR_sigpending:
{
sigset_t set;
ret = get_errno(sigpending(&set));
if (!is_error(ret)) {
p = lock_user(arg1, sizeof(target_sigset_t), 0);
host_to_target_old_sigset(p, &set);
unlock_user(p, arg1, sizeof(target_sigset_t));
}
}
break;
#endif
case TARGET_NR_rt_sigpending:
{
sigset_t set;
ret = get_errno(sigpending(&set));
if (!is_error(ret)) {
p = lock_user(arg1, sizeof(target_sigset_t), 0);
host_to_target_sigset(p, &set);
unlock_user(p, arg1, sizeof(target_sigset_t));
}
}
break;
#ifdef TARGET_NR_sigsuspend
case TARGET_NR_sigsuspend:
{
sigset_t set;
p = lock_user(arg1, sizeof(target_sigset_t), 1);
target_to_host_old_sigset(&set, p);
unlock_user(p, arg1, 0);
ret = get_errno(sigsuspend(&set));
}
break;
#endif
case TARGET_NR_rt_sigsuspend:
{
sigset_t set;
p = lock_user(arg1, sizeof(target_sigset_t), 1);
target_to_host_sigset(&set, p);
unlock_user(p, arg1, 0);
ret = get_errno(sigsuspend(&set));
}
break;
case TARGET_NR_rt_sigtimedwait:
{
sigset_t set;
struct timespec uts, *puts;
siginfo_t uinfo;
p = lock_user(arg1, sizeof(target_sigset_t), 1);
target_to_host_sigset(&set, p);
unlock_user(p, arg1, 0);
if (arg3) {
puts = &uts;
target_to_host_timespec(puts, arg3);
} else {
puts = NULL;
}
ret = get_errno(sigtimedwait(&set, &uinfo, puts));
if (!is_error(ret) && arg2) {
p = lock_user(arg2, sizeof(target_sigset_t), 0);
host_to_target_siginfo(p, &uinfo);
unlock_user(p, arg2, sizeof(target_sigset_t));
}
}
break;
case TARGET_NR_rt_sigqueueinfo:
{
siginfo_t uinfo;
p = lock_user(arg3, sizeof(target_sigset_t), 1);
target_to_host_siginfo(&uinfo, p);
unlock_user(p, arg1, 0);
ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
}
break;
#ifdef TARGET_NR_sigreturn
case TARGET_NR_sigreturn:
/* NOTE: ret is eax, so not transcoding must be done */
ret = do_sigreturn(cpu_env);
break;
#endif
case TARGET_NR_rt_sigreturn:
/* NOTE: ret is eax, so not transcoding must be done */
ret = do_rt_sigreturn(cpu_env);
break;
case TARGET_NR_sethostname:
p = lock_user_string(arg1);
ret = get_errno(sethostname(p, arg2));
unlock_user(p, arg1, 0);
break;
case TARGET_NR_setrlimit:
{
/* XXX: convert resource ? */
int resource = arg1;
struct target_rlimit *target_rlim;
struct rlimit rlim;
lock_user_struct(target_rlim, arg2, 1);
rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
rlim.rlim_max = tswapl(target_rlim->rlim_max);
unlock_user_struct(target_rlim, arg2, 0);
ret = get_errno(setrlimit(resource, &rlim));
}
break;
case TARGET_NR_getrlimit:
{
/* XXX: convert resource ? */
int resource = arg1;
struct target_rlimit *target_rlim;
struct rlimit rlim;
ret = get_errno(getrlimit(resource, &rlim));
if (!is_error(ret)) {
lock_user_struct(target_rlim, arg2, 0);
rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
rlim.rlim_max = tswapl(target_rlim->rlim_max);
unlock_user_struct(target_rlim, arg2, 1);
}
}
break;
case TARGET_NR_getrusage:
{
struct rusage rusage;
ret = get_errno(getrusage(arg1, &rusage));
if (!is_error(ret)) {
host_to_target_rusage(arg2, &rusage);
}
}
break;
case TARGET_NR_gettimeofday:
{
struct timeval tv;
ret = get_errno(gettimeofday(&tv, NULL));
if (!is_error(ret)) {
host_to_target_timeval(arg1, &tv);
}
}
break;
case TARGET_NR_settimeofday:
{
struct timeval tv;
target_to_host_timeval(&tv, arg1);
ret = get_errno(settimeofday(&tv, NULL));
}
break;
#ifdef TARGET_NR_select
case TARGET_NR_select:
{
struct target_sel_arg_struct *sel;
target_ulong inp, outp, exp, tvp;
long nsel;
lock_user_struct(sel, arg1, 1);
nsel = tswapl(sel->n);
inp = tswapl(sel->inp);
outp = tswapl(sel->outp);
exp = tswapl(sel->exp);
tvp = tswapl(sel->tvp);
unlock_user_struct(sel, arg1, 0);
ret = do_select(nsel, inp, outp, exp, tvp);
}
break;
#endif
case TARGET_NR_symlink:
{
void *p2;
p = lock_user_string(arg1);
p2 = lock_user_string(arg2);
ret = get_errno(symlink(p, p2));
unlock_user(p2, arg2, 0);
unlock_user(p, arg1, 0);
}
break;
#ifdef TARGET_NR_oldlstat
case TARGET_NR_oldlstat:
goto unimplemented;
#endif
case TARGET_NR_readlink:
{
void *p2;
p = lock_user_string(arg1);
p2 = lock_user(arg2, arg3, 0);
ret = get_errno(readlink(path(p), p2, arg3));
unlock_user(p2, arg2, ret);
unlock_user(p, arg1, 0);
}
break;
#ifdef TARGET_NR_uselib
case TARGET_NR_uselib:
goto unimplemented;
#endif
#ifdef TARGET_NR_swapon
case TARGET_NR_swapon:
p = lock_user_string(arg1);
ret = get_errno(swapon(p, arg2));
unlock_user(p, arg1, 0);
break;
#endif
case TARGET_NR_reboot:
goto unimplemented;
#ifdef TARGET_NR_readdir
case TARGET_NR_readdir:
goto unimplemented;
#endif
#ifdef TARGET_NR_mmap
case TARGET_NR_mmap:
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K)
{
target_ulong *v;
target_ulong v1, v2, v3, v4, v5, v6;
v = lock_user(arg1, 6 * sizeof(target_ulong), 1);
v1 = tswapl(v[0]);
v2 = tswapl(v[1]);
v3 = tswapl(v[2]);
v4 = tswapl(v[3]);
v5 = tswapl(v[4]);
v6 = tswapl(v[5]);
unlock_user(v, arg1, 0);
ret = get_errno(target_mmap(v1, v2, v3,
target_to_host_bitmask(v4, mmap_flags_tbl),
v5, v6));
}
#else
ret = get_errno(target_mmap(arg1, arg2, arg3,
target_to_host_bitmask(arg4, mmap_flags_tbl),
arg5,
arg6));
#endif
break;
#endif
#ifdef TARGET_NR_mmap2
case TARGET_NR_mmap2:
#if defined(TARGET_SPARC) || defined(TARGET_MIPS)
#define MMAP_SHIFT 12
#else
#define MMAP_SHIFT TARGET_PAGE_BITS
#endif
ret = get_errno(target_mmap(arg1, arg2, arg3,
target_to_host_bitmask(arg4, mmap_flags_tbl),
arg5,
arg6 << MMAP_SHIFT));
break;
#endif
case TARGET_NR_munmap:
ret = get_errno(target_munmap(arg1, arg2));
break;
case TARGET_NR_mprotect:
ret = get_errno(target_mprotect(arg1, arg2, arg3));
break;
#ifdef TARGET_NR_mremap
case TARGET_NR_mremap:
ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
break;
#endif
/* ??? msync/mlock/munlock are broken for softmmu. */
#ifdef TARGET_NR_msync
case TARGET_NR_msync:
ret = get_errno(msync(g2h(arg1), arg2, arg3));
break;
#endif
#ifdef TARGET_NR_mlock
case TARGET_NR_mlock:
ret = get_errno(mlock(g2h(arg1), arg2));
break;
#endif
#ifdef TARGET_NR_munlock
case TARGET_NR_munlock:
ret = get_errno(munlock(g2h(arg1), arg2));
break;
#endif
#ifdef TARGET_NR_mlockall
case TARGET_NR_mlockall:
ret = get_errno(mlockall(arg1));
break;
#endif
#ifdef TARGET_NR_munlockall
case TARGET_NR_munlockall:
ret = get_errno(munlockall());
break;
#endif
case TARGET_NR_truncate:
p = lock_user_string(arg1);
ret = get_errno(truncate(p, arg2));
unlock_user(p, arg1, 0);
break;
case TARGET_NR_ftruncate:
ret = get_errno(ftruncate(arg1, arg2));
break;
case TARGET_NR_fchmod:
ret = get_errno(fchmod(arg1, arg2));
break;
case TARGET_NR_getpriority:
ret = get_errno(getpriority(arg1, arg2));
break;
case TARGET_NR_setpriority:
ret = get_errno(setpriority(arg1, arg2, arg3));
break;
#ifdef TARGET_NR_profil
case TARGET_NR_profil:
goto unimplemented;
#endif
case TARGET_NR_statfs:
p = lock_user_string(arg1);
ret = get_errno(statfs(path(p), &stfs));
unlock_user(p, arg1, 0);
convert_statfs:
if (!is_error(ret)) {
struct target_statfs *target_stfs;
lock_user_struct(target_stfs, arg2, 0);
/* ??? put_user is probably wrong. */
put_user(stfs.f_type, &target_stfs->f_type);
put_user(stfs.f_bsize, &target_stfs->f_bsize);
put_user(stfs.f_blocks, &target_stfs->f_blocks);
put_user(stfs.f_bfree, &target_stfs->f_bfree);
put_user(stfs.f_bavail, &target_stfs->f_bavail);
put_user(stfs.f_files, &target_stfs->f_files);
put_user(stfs.f_ffree, &target_stfs->f_ffree);
put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
put_user(stfs.f_namelen, &target_stfs->f_namelen);
unlock_user_struct(target_stfs, arg2, 1);
}
break;
case TARGET_NR_fstatfs:
ret = get_errno(fstatfs(arg1, &stfs));
goto convert_statfs;
#ifdef TARGET_NR_statfs64
case TARGET_NR_statfs64:
p = lock_user_string(arg1);
ret = get_errno(statfs(path(p), &stfs));
unlock_user(p, arg1, 0);
convert_statfs64:
if (!is_error(ret)) {
struct target_statfs64 *target_stfs;
lock_user_struct(target_stfs, arg3, 0);
/* ??? put_user is probably wrong. */
put_user(stfs.f_type, &target_stfs->f_type);
put_user(stfs.f_bsize, &target_stfs->f_bsize);
put_user(stfs.f_blocks, &target_stfs->f_blocks);
put_user(stfs.f_bfree, &target_stfs->f_bfree);
put_user(stfs.f_bavail, &target_stfs->f_bavail);
put_user(stfs.f_files, &target_stfs->f_files);
put_user(stfs.f_ffree, &target_stfs->f_ffree);
put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
put_user(stfs.f_namelen, &target_stfs->f_namelen);
unlock_user_struct(target_stfs, arg3, 0);
}
break;
case TARGET_NR_fstatfs64:
ret = get_errno(fstatfs(arg1, &stfs));
goto convert_statfs64;
#endif
#ifdef TARGET_NR_ioperm
case TARGET_NR_ioperm:
goto unimplemented;
#endif
#ifdef TARGET_NR_socketcall
case TARGET_NR_socketcall:
ret = do_socketcall(arg1, arg2);
break;
#endif
#ifdef TARGET_NR_accept
case TARGET_NR_accept:
ret = do_accept(arg1, arg2, arg3);
break;
#endif
#ifdef TARGET_NR_bind
case TARGET_NR_bind:
ret = do_bind(arg1, arg2, arg3);
break;
#endif
#ifdef TARGET_NR_connect
case TARGET_NR_connect:
ret = do_connect(arg1, arg2, arg3);
break;
#endif
#ifdef TARGET_NR_getpeername
case TARGET_NR_getpeername:
ret = do_getpeername(arg1, arg2, arg3);
break;
#endif
#ifdef TARGET_NR_getsockname
case TARGET_NR_getsockname:
ret = do_getsockname(arg1, arg2, arg3);
break;
#endif
#ifdef TARGET_NR_getsockopt
case TARGET_NR_getsockopt:
ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
break;
#endif
#ifdef TARGET_NR_listen
case TARGET_NR_listen:
ret = get_errno(listen(arg1, arg2));
break;
#endif
#ifdef TARGET_NR_recv
case TARGET_NR_recv:
ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
break;
#endif
#ifdef TARGET_NR_recvfrom
case TARGET_NR_recvfrom:
ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
break;
#endif
#ifdef TARGET_NR_recvmsg
case TARGET_NR_recvmsg:
ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
break;
#endif
#ifdef TARGET_NR_send
case TARGET_NR_send:
ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
break;
#endif
#ifdef TARGET_NR_sendmsg
case TARGET_NR_sendmsg:
ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
break;
#endif
#ifdef TARGET_NR_sendto
case TARGET_NR_sendto:
ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
break;
#endif
#ifdef TARGET_NR_shutdown
case TARGET_NR_shutdown:
ret = get_errno(shutdown(arg1, arg2));
break;
#endif
#ifdef TARGET_NR_socket
case TARGET_NR_socket:
ret = do_socket(arg1, arg2, arg3);
break;
#endif
#ifdef TARGET_NR_socketpair
case TARGET_NR_socketpair:
ret = do_socketpair(arg1, arg2, arg3, arg4);
break;
#endif
#ifdef TARGET_NR_setsockopt
case TARGET_NR_setsockopt:
ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
break;
#endif
case TARGET_NR_syslog:
p = lock_user_string(arg2);
ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
unlock_user(p, arg2, 0);
break;
case TARGET_NR_setitimer:
{
struct itimerval value, ovalue, *pvalue;
if (arg2) {
pvalue = &value;
target_to_host_timeval(&pvalue->it_interval,
arg2);
target_to_host_timeval(&pvalue->it_value,
arg2 + sizeof(struct target_timeval));
} else {
pvalue = NULL;
}
ret = get_errno(setitimer(arg1, pvalue, &ovalue));
if (!is_error(ret) && arg3) {
host_to_target_timeval(arg3,
&ovalue.it_interval);
host_to_target_timeval(arg3 + sizeof(struct target_timeval),
&ovalue.it_value);
}
}
break;
case TARGET_NR_getitimer:
{
struct itimerval value;
ret = get_errno(getitimer(arg1, &value));
if (!is_error(ret) && arg2) {
host_to_target_timeval(arg2,
&value.it_interval);
host_to_target_timeval(arg2 + sizeof(struct target_timeval),
&value.it_value);
}
}
break;
case TARGET_NR_stat:
p = lock_user_string(arg1);
ret = get_errno(stat(path(p), &st));
unlock_user(p, arg1, 0);
goto do_stat;
case TARGET_NR_lstat:
p = lock_user_string(arg1);
ret = get_errno(lstat(path(p), &st));
unlock_user(p, arg1, 0);
goto do_stat;
case TARGET_NR_fstat:
{
ret = get_errno(fstat(arg1, &st));
do_stat:
if (!is_error(ret)) {
struct target_stat *target_st;
lock_user_struct(target_st, arg2, 0);
#if defined(TARGET_MIPS)
target_st->st_dev = tswap32(st.st_dev);
#else
target_st->st_dev = tswap16(st.st_dev);
#endif
target_st->st_ino = tswapl(st.st_ino);
#if defined(TARGET_PPC) || defined(TARGET_MIPS)
target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
target_st->st_uid = tswap32(st.st_uid);
target_st->st_gid = tswap32(st.st_gid);
#else
target_st->st_mode = tswap16(st.st_mode);
target_st->st_uid = tswap16(st.st_uid);
target_st->st_gid = tswap16(st.st_gid);
#endif
#if defined(TARGET_MIPS)
/* If this is the same on PPC, then just merge w/ the above ifdef */
target_st->st_nlink = tswapl(st.st_nlink);
target_st->st_rdev = tswapl(st.st_rdev);
#else
target_st->st_nlink = tswap16(st.st_nlink);
target_st->st_rdev = tswap16(st.st_rdev);
#endif
target_st->st_size = tswapl(st.st_size);
target_st->st_blksize = tswapl(st.st_blksize);
target_st->st_blocks = tswapl(st.st_blocks);
target_st->target_st_atime = tswapl(st.st_atime);
target_st->target_st_mtime = tswapl(st.st_mtime);
target_st->target_st_ctime = tswapl(st.st_ctime);
unlock_user_struct(target_st, arg2, 1);
}
}
break;
#ifdef TARGET_NR_olduname
case TARGET_NR_olduname:
goto unimplemented;
#endif
#ifdef TARGET_NR_iopl
case TARGET_NR_iopl:
goto unimplemented;
#endif
case TARGET_NR_vhangup:
ret = get_errno(vhangup());
break;
#ifdef TARGET_NR_idle
case TARGET_NR_idle:
goto unimplemented;
#endif
#ifdef TARGET_NR_syscall
case TARGET_NR_syscall:
ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
break;
#endif
case TARGET_NR_wait4:
{
int status;
target_long status_ptr = arg2;
struct rusage rusage, *rusage_ptr;
target_ulong target_rusage = arg4;
if (target_rusage)
rusage_ptr = &rusage;
else
rusage_ptr = NULL;
ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
if (!is_error(ret)) {
if (status_ptr)
tputl(status_ptr, status);
if (target_rusage) {
host_to_target_rusage(target_rusage, &rusage);
}
}
}
break;
#ifdef TARGET_NR_swapoff
case TARGET_NR_swapoff:
p = lock_user_string(arg1);
ret = get_errno(swapoff(p));
unlock_user(p, arg1, 0);
break;
#endif
case TARGET_NR_sysinfo:
{
struct target_sysinfo *target_value;
struct sysinfo value;
ret = get_errno(sysinfo(&value));
if (!is_error(ret) && arg1)
{
/* ??? __put_user is probably wrong. */
lock_user_struct(target_value, arg1, 0);
__put_user(value.uptime, &target_value->uptime);
__put_user(value.loads[0], &target_value->loads[0]);
__put_user(value.loads[1], &target_value->loads[1]);
__put_user(value.loads[2], &target_value->loads[2]);
__put_user(value.totalram, &target_value->totalram);
__put_user(value.freeram, &target_value->freeram);
__put_user(value.sharedram, &target_value->sharedram);
__put_user(value.bufferram, &target_value->bufferram);
__put_user(value.totalswap, &target_value->totalswap);
__put_user(value.freeswap, &target_value->freeswap);
__put_user(value.procs, &target_value->procs);
__put_user(value.totalhigh, &target_value->totalhigh);
__put_user(value.freehigh, &target_value->freehigh);
__put_user(value.mem_unit, &target_value->mem_unit);
unlock_user_struct(target_value, arg1, 1);
}
}
break;
#ifdef TARGET_NR_ipc
case TARGET_NR_ipc:
ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
break;
#endif
case TARGET_NR_fsync:
ret = get_errno(fsync(arg1));
break;
case TARGET_NR_clone:
ret = get_errno(do_fork(cpu_env, arg1, arg2));
break;
#ifdef __NR_exit_group
/* new thread calls */
case TARGET_NR_exit_group:
gdb_exit(cpu_env, arg1);
ret = get_errno(exit_group(arg1));
break;
#endif
case TARGET_NR_setdomainname:
p = lock_user_string(arg1);
ret = get_errno(setdomainname(p, arg2));
unlock_user(p, arg1, 0);
break;
case TARGET_NR_uname:
/* no need to transcode because we use the linux syscall */
{
struct new_utsname * buf;
lock_user_struct(buf, arg1, 0);
ret = get_errno(sys_uname(buf));
if (!is_error(ret)) {
/* Overrite the native machine name with whatever is being
emulated. */
strcpy (buf->machine, UNAME_MACHINE);
/* Allow the user to override the reported release. */
if (qemu_uname_release && *qemu_uname_release)
strcpy (buf->release, qemu_uname_release);
}
unlock_user_struct(buf, arg1, 1);
}
break;
#ifdef TARGET_I386
case TARGET_NR_modify_ldt:
ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3));
break;
#if !defined(TARGET_X86_64)
case TARGET_NR_vm86old:
goto unimplemented;
case TARGET_NR_vm86:
ret = do_vm86(cpu_env, arg1, arg2);
break;
#endif
#endif
case TARGET_NR_adjtimex:
goto unimplemented;
#ifdef TARGET_NR_create_module
case TARGET_NR_create_module:
#endif
case TARGET_NR_init_module:
case TARGET_NR_delete_module:
#ifdef TARGET_NR_get_kernel_syms
case TARGET_NR_get_kernel_syms:
#endif
goto unimplemented;
case TARGET_NR_quotactl:
goto unimplemented;
case TARGET_NR_getpgid:
ret = get_errno(getpgid(arg1));
break;
case TARGET_NR_fchdir:
ret = get_errno(fchdir(arg1));
break;
#ifdef TARGET_NR_bdflush /* not on x86_64 */
case TARGET_NR_bdflush:
goto unimplemented;
#endif
#ifdef TARGET_NR_sysfs
case TARGET_NR_sysfs:
goto unimplemented;
#endif
case TARGET_NR_personality:
ret = get_errno(personality(arg1));
break;
#ifdef TARGET_NR_afs_syscall
case TARGET_NR_afs_syscall:
goto unimplemented;
#endif
#ifdef TARGET_NR__llseek /* Not on alpha */
case TARGET_NR__llseek:
{
#if defined (__x86_64__)
ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
tput64(arg4, ret);
#else
int64_t res;
ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
tput64(arg4, res);
#endif
}
break;
#endif
case TARGET_NR_getdents:
#if TARGET_LONG_SIZE != 4
goto unimplemented;
#warning not supported
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
{
struct target_dirent *target_dirp;
struct dirent *dirp;
long count = arg3;
dirp = malloc(count);
if (!dirp)
return -ENOMEM;
ret = get_errno(sys_getdents(arg1, dirp, count));
if (!is_error(ret)) {
struct dirent *de;
struct target_dirent *tde;
int len = ret;
int reclen, treclen;
int count1, tnamelen;
count1 = 0;
de = dirp;
target_dirp = lock_user(arg2, count, 0);
tde = target_dirp;
while (len > 0) {
reclen = de->d_reclen;
treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
tde->d_reclen = tswap16(treclen);
tde->d_ino = tswapl(de->d_ino);
tde->d_off = tswapl(de->d_off);
tnamelen = treclen - (2 * sizeof(target_long) + 2);
if (tnamelen > 256)
tnamelen = 256;
/* XXX: may not be correct */
strncpy(tde->d_name, de->d_name, tnamelen);
de = (struct dirent *)((char *)de + reclen);
len -= reclen;
tde = (struct target_dirent *)((char *)tde + treclen);
count1 += treclen;
}
ret = count1;
}
unlock_user(target_dirp, arg2, ret);
free(dirp);
}
#else
{
struct dirent *dirp;
long count = arg3;
dirp = lock_user(arg2, count, 0);
ret = get_errno(sys_getdents(arg1, dirp, count));
if (!is_error(ret)) {
struct dirent *de;
int len = ret;
int reclen;
de = dirp;
while (len > 0) {
reclen = de->d_reclen;
if (reclen > len)
break;
de->d_reclen = tswap16(reclen);
tswapls(&de->d_ino);
tswapls(&de->d_off);
de = (struct dirent *)((char *)de + reclen);
len -= reclen;
}
}
unlock_user(dirp, arg2, ret);
}
#endif
break;
#ifdef TARGET_NR_getdents64
case TARGET_NR_getdents64:
{
struct dirent64 *dirp;
long count = arg3;
dirp = lock_user(arg2, count, 0);
ret = get_errno(sys_getdents64(arg1, dirp, count));
if (!is_error(ret)) {
struct dirent64 *de;
int len = ret;
int reclen;
de = dirp;
while (len > 0) {
reclen = de->d_reclen;
if (reclen > len)
break;
de->d_reclen = tswap16(reclen);
tswap64s(&de->d_ino);
tswap64s(&de->d_off);
de = (struct dirent64 *)((char *)de + reclen);
len -= reclen;
}
}
unlock_user(dirp, arg2, ret);
}
break;
#endif /* TARGET_NR_getdents64 */
#ifdef TARGET_NR__newselect
case TARGET_NR__newselect:
ret = do_select(arg1, arg2, arg3, arg4, arg5);
break;
#endif
#ifdef TARGET_NR_poll
case TARGET_NR_poll:
{
struct target_pollfd *target_pfd;
unsigned int nfds = arg2;
int timeout = arg3;
struct pollfd *pfd;
unsigned int i;
target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1);
pfd = alloca(sizeof(struct pollfd) * nfds);
for(i = 0; i < nfds; i++) {
pfd[i].fd = tswap32(target_pfd[i].fd);
pfd[i].events = tswap16(target_pfd[i].events);
}
ret = get_errno(poll(pfd, nfds, timeout));
if (!is_error(ret)) {
for(i = 0; i < nfds; i++) {
target_pfd[i].revents = tswap16(pfd[i].revents);
}
ret += nfds * (sizeof(struct target_pollfd)
- sizeof(struct pollfd));
}
unlock_user(target_pfd, arg1, ret);
}
break;
#endif
case TARGET_NR_flock:
/* NOTE: the flock constant seems to be the same for every
Linux platform */
ret = get_errno(flock(arg1, arg2));
break;
case TARGET_NR_readv:
{
int count = arg3;
struct iovec *vec;
vec = alloca(count * sizeof(struct iovec));
lock_iovec(vec, arg2, count, 0);
ret = get_errno(readv(arg1, vec, count));
unlock_iovec(vec, arg2, count, 1);
}
break;
case TARGET_NR_writev:
{
int count = arg3;
struct iovec *vec;
vec = alloca(count * sizeof(struct iovec));
lock_iovec(vec, arg2, count, 1);
ret = get_errno(writev(arg1, vec, count));
unlock_iovec(vec, arg2, count, 0);
}
break;
case TARGET_NR_getsid:
ret = get_errno(getsid(arg1));
break;
#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
case TARGET_NR_fdatasync:
ret = get_errno(fdatasync(arg1));
break;
#endif
case TARGET_NR__sysctl:
/* We don't implement this, but ENODIR is always a safe
return value. */
return -ENOTDIR;
case TARGET_NR_sched_setparam:
{
struct sched_param *target_schp;
struct sched_param schp;
lock_user_struct(target_schp, arg2, 1);
schp.sched_priority = tswap32(target_schp->sched_priority);
unlock_user_struct(target_schp, arg2, 0);
ret = get_errno(sched_setparam(arg1, &schp));
}
break;
case TARGET_NR_sched_getparam:
{
struct sched_param *target_schp;
struct sched_param schp;
ret = get_errno(sched_getparam(arg1, &schp));
if (!is_error(ret)) {
lock_user_struct(target_schp, arg2, 0);
target_schp->sched_priority = tswap32(schp.sched_priority);
unlock_user_struct(target_schp, arg2, 1);
}
}
break;
case TARGET_NR_sched_setscheduler:
{
struct sched_param *target_schp;
struct sched_param schp;
lock_user_struct(target_schp, arg3, 1);
schp.sched_priority = tswap32(target_schp->sched_priority);
unlock_user_struct(target_schp, arg3, 0);
ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
}
break;
case TARGET_NR_sched_getscheduler:
ret = get_errno(sched_getscheduler(arg1));
break;
case TARGET_NR_sched_yield:
ret = get_errno(sched_yield());
break;
case TARGET_NR_sched_get_priority_max:
ret = get_errno(sched_get_priority_max(arg1));
break;
case TARGET_NR_sched_get_priority_min:
ret = get_errno(sched_get_priority_min(arg1));
break;
case TARGET_NR_sched_rr_get_interval:
{
struct timespec ts;
ret = get_errno(sched_rr_get_interval(arg1, &ts));
if (!is_error(ret)) {
host_to_target_timespec(arg2, &ts);
}
}
break;
case TARGET_NR_nanosleep:
{
struct timespec req, rem;
target_to_host_timespec(&req, arg1);
ret = get_errno(nanosleep(&req, &rem));
if (is_error(ret) && arg2) {
host_to_target_timespec(arg2, &rem);
}
}
break;
#ifdef TARGET_NR_query_module
case TARGET_NR_query_module:
goto unimplemented;
#endif
#ifdef TARGET_NR_nfsservctl
case TARGET_NR_nfsservctl:
goto unimplemented;
#endif
case TARGET_NR_prctl:
switch (arg1)
{
case PR_GET_PDEATHSIG:
{
int deathsig;
ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
if (!is_error(ret) && arg2)
tput32(arg2, deathsig);
}
break;
default:
ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
break;
}
break;
#ifdef TARGET_NR_pread
case TARGET_NR_pread:
page_unprotect_range(arg2, arg3);
p = lock_user(arg2, arg3, 0);
ret = get_errno(pread(arg1, p, arg3, arg4));
unlock_user(p, arg2, ret);
break;
case TARGET_NR_pwrite:
p = lock_user(arg2, arg3, 1);
ret = get_errno(pwrite(arg1, p, arg3, arg4));
unlock_user(p, arg2, 0);
break;
#endif
case TARGET_NR_getcwd:
p = lock_user(arg1, arg2, 0);
ret = get_errno(sys_getcwd1(p, arg2));
unlock_user(p, arg1, ret);
break;
case TARGET_NR_capget:
goto unimplemented;
case TARGET_NR_capset:
goto unimplemented;
case TARGET_NR_sigaltstack:
goto unimplemented;
case TARGET_NR_sendfile:
goto unimplemented;
#ifdef TARGET_NR_getpmsg
case TARGET_NR_getpmsg:
goto unimplemented;
#endif
#ifdef TARGET_NR_putpmsg
case TARGET_NR_putpmsg:
goto unimplemented;
#endif
#ifdef TARGET_NR_vfork
case TARGET_NR_vfork:
ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
break;
#endif
#ifdef TARGET_NR_ugetrlimit
case TARGET_NR_ugetrlimit:
{
struct rlimit rlim;
ret = get_errno(getrlimit(arg1, &rlim));
if (!is_error(ret)) {
struct target_rlimit *target_rlim;
lock_user_struct(target_rlim, arg2, 0);
target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
target_rlim->rlim_max = tswapl(rlim.rlim_max);
unlock_user_struct(target_rlim, arg2, 1);
}
break;
}
#endif
#ifdef TARGET_NR_truncate64
case TARGET_NR_truncate64:
p = lock_user_string(arg1);
ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
unlock_user(p, arg1, 0);
break;
#endif
#ifdef TARGET_NR_ftruncate64
case TARGET_NR_ftruncate64:
ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
break;
#endif
#ifdef TARGET_NR_stat64
case TARGET_NR_stat64:
p = lock_user_string(arg1);
ret = get_errno(stat(path(p), &st));
unlock_user(p, arg1, 0);
goto do_stat64;
#endif
#ifdef TARGET_NR_lstat64
case TARGET_NR_lstat64:
p = lock_user_string(arg1);
ret = get_errno(lstat(path(p), &st));
unlock_user(p, arg1, 0);
goto do_stat64;
#endif
#ifdef TARGET_NR_fstat64
case TARGET_NR_fstat64:
{
ret = get_errno(fstat(arg1, &st));
do_stat64:
if (!is_error(ret)) {
#ifdef TARGET_ARM
if (((CPUARMState *)cpu_env)->eabi) {
struct target_eabi_stat64 *target_st;
lock_user_struct(target_st, arg2, 1);
memset(target_st, 0, sizeof(struct target_eabi_stat64));
/* put_user is probably wrong. */
put_user(st.st_dev, &target_st->st_dev);
put_user(st.st_ino, &target_st->st_ino);
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
put_user(st.st_ino, &target_st->__st_ino);
#endif
put_user(st.st_mode, &target_st->st_mode);
put_user(st.st_nlink, &target_st->st_nlink);
put_user(st.st_uid, &target_st->st_uid);
put_user(st.st_gid, &target_st->st_gid);
put_user(st.st_rdev, &target_st->st_rdev);
/* XXX: better use of kernel struct */
put_user(st.st_size, &target_st->st_size);
put_user(st.st_blksize, &target_st->st_blksize);
put_user(st.st_blocks, &target_st->st_blocks);
put_user(st.st_atime, &target_st->target_st_atime);
put_user(st.st_mtime, &target_st->target_st_mtime);
put_user(st.st_ctime, &target_st->target_st_ctime);
unlock_user_struct(target_st, arg2, 0);
} else
#endif
{
struct target_stat64 *target_st;
lock_user_struct(target_st, arg2, 1);
memset(target_st, 0, sizeof(struct target_stat64));
/* ??? put_user is probably wrong. */
put_user(st.st_dev, &target_st->st_dev);
put_user(st.st_ino, &target_st->st_ino);
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
put_user(st.st_ino, &target_st->__st_ino);
#endif
put_user(st.st_mode, &target_st->st_mode);
put_user(st.st_nlink, &target_st->st_nlink);
put_user(st.st_uid, &target_st->st_uid);
put_user(st.st_gid, &target_st->st_gid);
put_user(st.st_rdev, &target_st->st_rdev);
/* XXX: better use of kernel struct */
put_user(st.st_size, &target_st->st_size);
put_user(st.st_blksize, &target_st->st_blksize);
put_user(st.st_blocks, &target_st->st_blocks);
put_user(st.st_atime, &target_st->target_st_atime);
put_user(st.st_mtime, &target_st->target_st_mtime);
put_user(st.st_ctime, &target_st->target_st_ctime);
unlock_user_struct(target_st, arg2, 0);
}
}
}
break;
#endif
#ifdef USE_UID16
case TARGET_NR_lchown:
p = lock_user_string(arg1);
ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
unlock_user(p, arg1, 0);
break;
case TARGET_NR_getuid:
ret = get_errno(high2lowuid(getuid()));
break;
case TARGET_NR_getgid:
ret = get_errno(high2lowgid(getgid()));
break;
case TARGET_NR_geteuid:
ret = get_errno(high2lowuid(geteuid()));
break;
case TARGET_NR_getegid:
ret = get_errno(high2lowgid(getegid()));
break;
case TARGET_NR_setreuid:
ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
break;
case TARGET_NR_setregid:
ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
break;
case TARGET_NR_getgroups:
{
int gidsetsize = arg1;
uint16_t *target_grouplist;
gid_t *grouplist;
int i;
grouplist = alloca(gidsetsize * sizeof(gid_t));
ret = get_errno(getgroups(gidsetsize, grouplist));
if (!is_error(ret)) {
target_grouplist = lock_user(arg2, gidsetsize * 2, 0);
for(i = 0;i < gidsetsize; i++)
target_grouplist[i] = tswap16(grouplist[i]);
unlock_user(target_grouplist, arg2, gidsetsize * 2);
}
}
break;
case TARGET_NR_setgroups:
{
int gidsetsize = arg1;
uint16_t *target_grouplist;
gid_t *grouplist;
int i;
grouplist = alloca(gidsetsize * sizeof(gid_t));
target_grouplist = lock_user(arg2, gidsetsize * 2, 1);
for(i = 0;i < gidsetsize; i++)
grouplist[i] = tswap16(target_grouplist[i]);
unlock_user(target_grouplist, arg2, 0);
ret = get_errno(setgroups(gidsetsize, grouplist));
}
break;
case TARGET_NR_fchown:
ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
break;
#ifdef TARGET_NR_setresuid
case TARGET_NR_setresuid:
ret = get_errno(setresuid(low2highuid(arg1),
low2highuid(arg2),
low2highuid(arg3)));
break;
#endif
#ifdef TARGET_NR_getresuid
case TARGET_NR_getresuid:
{
uid_t ruid, euid, suid;
ret = get_errno(getresuid(&ruid, &euid, &suid));
if (!is_error(ret)) {
tput16(arg1, tswap16(high2lowuid(ruid)));
tput16(arg2, tswap16(high2lowuid(euid)));
tput16(arg3, tswap16(high2lowuid(suid)));
}
}
break;
#endif
#ifdef TARGET_NR_getresgid
case TARGET_NR_setresgid:
ret = get_errno(setresgid(low2highgid(arg1),
low2highgid(arg2),
low2highgid(arg3)));
break;
#endif
#ifdef TARGET_NR_getresgid
case TARGET_NR_getresgid:
{
gid_t rgid, egid, sgid;
ret = get_errno(getresgid(&rgid, &egid, &sgid));
if (!is_error(ret)) {
tput16(arg1, tswap16(high2lowgid(rgid)));
tput16(arg2, tswap16(high2lowgid(egid)));
tput16(arg3, tswap16(high2lowgid(sgid)));
}
}
break;
#endif
case TARGET_NR_chown:
p = lock_user_string(arg1);
ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
unlock_user(p, arg1, 0);
break;
case TARGET_NR_setuid:
ret = get_errno(setuid(low2highuid(arg1)));
break;
case TARGET_NR_setgid:
ret = get_errno(setgid(low2highgid(arg1)));
break;
case TARGET_NR_setfsuid:
ret = get_errno(setfsuid(arg1));
break;
case TARGET_NR_setfsgid:
ret = get_errno(setfsgid(arg1));
break;
#endif /* USE_UID16 */
#ifdef TARGET_NR_lchown32
case TARGET_NR_lchown32:
p = lock_user_string(arg1);
ret = get_errno(lchown(p, arg2, arg3));
unlock_user(p, arg1, 0);
break;
#endif
#ifdef TARGET_NR_getuid32
case TARGET_NR_getuid32:
ret = get_errno(getuid());
break;
#endif
#ifdef TARGET_NR_getgid32
case TARGET_NR_getgid32:
ret = get_errno(getgid());
break;
#endif
#ifdef TARGET_NR_geteuid32
case TARGET_NR_geteuid32:
ret = get_errno(geteuid());
break;
#endif
#ifdef TARGET_NR_getegid32
case TARGET_NR_getegid32:
ret = get_errno(getegid());
break;
#endif
#ifdef TARGET_NR_setreuid32
case TARGET_NR_setreuid32:
ret = get_errno(setreuid(arg1, arg2));
break;
#endif
#ifdef TARGET_NR_setregid32
case TARGET_NR_setregid32:
ret = get_errno(setregid(arg1, arg2));
break;
#endif
#ifdef TARGET_NR_getgroups32
case TARGET_NR_getgroups32:
{
int gidsetsize = arg1;
uint32_t *target_grouplist;
gid_t *grouplist;
int i;
grouplist = alloca(gidsetsize * sizeof(gid_t));
ret = get_errno(getgroups(gidsetsize, grouplist));
if (!is_error(ret)) {
target_grouplist = lock_user(arg2, gidsetsize * 4, 0);
for(i = 0;i < gidsetsize; i++)
target_grouplist[i] = tswap32(grouplist[i]);
unlock_user(target_grouplist, arg2, gidsetsize * 4);
}
}
break;
#endif
#ifdef TARGET_NR_setgroups32
case TARGET_NR_setgroups32:
{
int gidsetsize = arg1;
uint32_t *target_grouplist;
gid_t *grouplist;
int i;
grouplist = alloca(gidsetsize * sizeof(gid_t));
target_grouplist = lock_user(arg2, gidsetsize * 4, 1);
for(i = 0;i < gidsetsize; i++)
grouplist[i] = tswap32(target_grouplist[i]);
unlock_user(target_grouplist, arg2, 0);
ret = get_errno(setgroups(gidsetsize, grouplist));
}
break;
#endif
#ifdef TARGET_NR_fchown32
case TARGET_NR_fchown32:
ret = get_errno(fchown(arg1, arg2, arg3));
break;
#endif
#ifdef TARGET_NR_setresuid32
case TARGET_NR_setresuid32:
ret = get_errno(setresuid(arg1, arg2, arg3));
break;
#endif
#ifdef TARGET_NR_getresuid32
case TARGET_NR_getresuid32:
{
uid_t ruid, euid, suid;
ret = get_errno(getresuid(&ruid, &euid, &suid));
if (!is_error(ret)) {
tput32(arg1, tswap32(ruid));
tput32(arg2, tswap32(euid));
tput32(arg3, tswap32(suid));
}
}
break;
#endif
#ifdef TARGET_NR_setresgid32
case TARGET_NR_setresgid32:
ret = get_errno(setresgid(arg1, arg2, arg3));
break;
#endif
#ifdef TARGET_NR_getresgid32
case TARGET_NR_getresgid32:
{
gid_t rgid, egid, sgid;
ret = get_errno(getresgid(&rgid, &egid, &sgid));
if (!is_error(ret)) {
tput32(arg1, tswap32(rgid));
tput32(arg2, tswap32(egid));
tput32(arg3, tswap32(sgid));
}
}
break;
#endif
#ifdef TARGET_NR_chown32
case TARGET_NR_chown32:
p = lock_user_string(arg1);
ret = get_errno(chown(p, arg2, arg3));
unlock_user(p, arg1, 0);
break;
#endif
#ifdef TARGET_NR_setuid32
case TARGET_NR_setuid32:
ret = get_errno(setuid(arg1));
break;
#endif
#ifdef TARGET_NR_setgid32
case TARGET_NR_setgid32:
ret = get_errno(setgid(arg1));
break;
#endif
#ifdef TARGET_NR_setfsuid32
case TARGET_NR_setfsuid32:
ret = get_errno(setfsuid(arg1));
break;
#endif
#ifdef TARGET_NR_setfsgid32
case TARGET_NR_setfsgid32:
ret = get_errno(setfsgid(arg1));
break;
#endif
case TARGET_NR_pivot_root:
goto unimplemented;
#ifdef TARGET_NR_mincore
case TARGET_NR_mincore:
goto unimplemented;
#endif
#ifdef TARGET_NR_madvise
case TARGET_NR_madvise:
/* A straight passthrough may not be safe because qemu sometimes
turns private flie-backed mappings into anonymous mappings.
This will break MADV_DONTNEED.
This is a hint, so ignoring and returning success is ok. */
ret = get_errno(0);
break;
#endif
#if TARGET_LONG_BITS == 32
case TARGET_NR_fcntl64:
{
int cmd;
struct flock64 fl;
struct target_flock64 *target_fl;
#ifdef TARGET_ARM
struct target_eabi_flock64 *target_efl;
#endif
switch(arg2){
case TARGET_F_GETLK64:
cmd = F_GETLK64;
break;
case TARGET_F_SETLK64:
cmd = F_SETLK64;
break;
case TARGET_F_SETLKW64:
cmd = F_SETLK64;
break;
default:
cmd = arg2;
break;
}
switch(arg2) {
case TARGET_F_GETLK64:
#ifdef TARGET_ARM
if (((CPUARMState *)cpu_env)->eabi) {
lock_user_struct(target_efl, arg3, 1);
fl.l_type = tswap16(target_efl->l_type);
fl.l_whence = tswap16(target_efl->l_whence);
fl.l_start = tswap64(target_efl->l_start);
fl.l_len = tswap64(target_efl->l_len);
fl.l_pid = tswapl(target_efl->l_pid);
unlock_user_struct(target_efl, arg3, 0);
} else
#endif
{
lock_user_struct(target_fl, arg3, 1);
fl.l_type = tswap16(target_fl->l_type);
fl.l_whence = tswap16(target_fl->l_whence);
fl.l_start = tswap64(target_fl->l_start);
fl.l_len = tswap64(target_fl->l_len);
fl.l_pid = tswapl(target_fl->l_pid);
unlock_user_struct(target_fl, arg3, 0);
}
ret = get_errno(fcntl(arg1, cmd, &fl));
if (ret == 0) {
#ifdef TARGET_ARM
if (((CPUARMState *)cpu_env)->eabi) {
lock_user_struct(target_efl, arg3, 0);
target_efl->l_type = tswap16(fl.l_type);
target_efl->l_whence = tswap16(fl.l_whence);
target_efl->l_start = tswap64(fl.l_start);
target_efl->l_len = tswap64(fl.l_len);
target_efl->l_pid = tswapl(fl.l_pid);
unlock_user_struct(target_efl, arg3, 1);
} else
#endif
{
lock_user_struct(target_fl, arg3, 0);
target_fl->l_type = tswap16(fl.l_type);
target_fl->l_whence = tswap16(fl.l_whence);
target_fl->l_start = tswap64(fl.l_start);
target_fl->l_len = tswap64(fl.l_len);
target_fl->l_pid = tswapl(fl.l_pid);
unlock_user_struct(target_fl, arg3, 1);
}
}
break;
case TARGET_F_SETLK64:
case TARGET_F_SETLKW64:
#ifdef TARGET_ARM
if (((CPUARMState *)cpu_env)->eabi) {
lock_user_struct(target_efl, arg3, 1);
fl.l_type = tswap16(target_efl->l_type);
fl.l_whence = tswap16(target_efl->l_whence);
fl.l_start = tswap64(target_efl->l_start);
fl.l_len = tswap64(target_efl->l_len);
fl.l_pid = tswapl(target_efl->l_pid);
unlock_user_struct(target_efl, arg3, 0);
} else
#endif
{
lock_user_struct(target_fl, arg3, 1);
fl.l_type = tswap16(target_fl->l_type);
fl.l_whence = tswap16(target_fl->l_whence);
fl.l_start = tswap64(target_fl->l_start);
fl.l_len = tswap64(target_fl->l_len);
fl.l_pid = tswapl(target_fl->l_pid);
unlock_user_struct(target_fl, arg3, 0);
}
ret = get_errno(fcntl(arg1, cmd, &fl));
break;
default:
ret = get_errno(do_fcntl(arg1, cmd, arg3));
break;
}
break;
}
#endif
#ifdef TARGET_NR_cacheflush
case TARGET_NR_cacheflush:
/* self-modifying code is handled automatically, so nothing needed */
ret = 0;
break;
#endif
#ifdef TARGET_NR_security
case TARGET_NR_security:
goto unimplemented;
#endif
#ifdef TARGET_NR_getpagesize
case TARGET_NR_getpagesize:
ret = TARGET_PAGE_SIZE;
break;
#endif
case TARGET_NR_gettid:
ret = get_errno(gettid());
break;
#ifdef TARGET_NR_readahead
case TARGET_NR_readahead:
goto unimplemented;
#endif
#ifdef TARGET_NR_setxattr
case TARGET_NR_setxattr:
case TARGET_NR_lsetxattr:
case TARGET_NR_fsetxattr:
case TARGET_NR_getxattr:
case TARGET_NR_lgetxattr:
case TARGET_NR_fgetxattr:
case TARGET_NR_listxattr:
case TARGET_NR_llistxattr:
case TARGET_NR_flistxattr:
case TARGET_NR_removexattr:
case TARGET_NR_lremovexattr:
case TARGET_NR_fremovexattr:
goto unimplemented_nowarn;
#endif
#ifdef TARGET_NR_set_thread_area
case TARGET_NR_set_thread_area:
#ifdef TARGET_MIPS
((CPUMIPSState *) cpu_env)->tls_value = arg1;
ret = 0;
break;
#else
goto unimplemented_nowarn;
#endif
#endif
#ifdef TARGET_NR_get_thread_area
case TARGET_NR_get_thread_area:
goto unimplemented_nowarn;
#endif
#ifdef TARGET_NR_getdomainname
case TARGET_NR_getdomainname:
goto unimplemented_nowarn;
#endif
#ifdef TARGET_NR_clock_gettime
case TARGET_NR_clock_gettime:
{
struct timespec ts;
ret = get_errno(clock_gettime(arg1, &ts));
if (!is_error(ret)) {
host_to_target_timespec(arg2, &ts);
}
break;
}
#endif
#ifdef TARGET_NR_clock_getres
case TARGET_NR_clock_getres:
{
struct timespec ts;
ret = get_errno(clock_getres(arg1, &ts));
if (!is_error(ret)) {
host_to_target_timespec(arg2, &ts);
}
break;
}
#endif
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
case TARGET_NR_set_tid_address:
ret = get_errno(set_tid_address((int *) arg1));
break;
#endif
default:
unimplemented:
gemu_log("qemu: Unsupported syscall: %d\n", num);
#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname)
unimplemented_nowarn:
#endif
ret = -ENOSYS;
break;
}
fail:
#ifdef DEBUG
gemu_log(" = %ld\n", ret);
#endif
return ret;
}
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