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linux-user symlinkat() syscall, by Thayne Harbaugh.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3224 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-09-24 09:25:40 +00:00
parent 64f0ce4c0d
commit f0b6243d5d
1 changed files with 27 additions and 0 deletions
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27
linux-user/syscall.c
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@ -149,6 +149,7 @@ type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
#define __NR_sys_openat __NR_openat
#define __NR_sys_renameat __NR_renameat
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
#define __NR_sys_symlinkat __NR_symlinkat
#define __NR_sys_syslog __NR_syslog
#define __NR_sys_tgkill __NR_tgkill
#define __NR_sys_tkill __NR_tkill
@ -196,6 +197,10 @@ _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
int,newdirfd,const char *,newpath)
#endif
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
#ifdef TARGET_NR_symlinkat
_syscall3(int,sys_symlinkat,const char *,oldpath,
int,newdirfd,const char *,newpath)
#endif
_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
_syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
@ -3361,6 +3366,28 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
unlock_user(p, arg1, 0);
}
break;
#if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
case TARGET_NR_symlinkat:
if (!arg1 || !arg3) {
ret = -EFAULT;
goto fail;
}
{
void *p2 = NULL;
p = lock_user_string(arg1);
p2 = lock_user_string(arg3);
if (!access_ok(VERIFY_READ, p, 1)
|| !access_ok(VERIFY_READ, p2, 1))
ret = -EFAULT;
else
ret = get_errno(sys_symlinkat(p, arg2, p2));
if (p2)
unlock_user(p2, arg3, 0);
if (p)
unlock_user(p, arg1, 0);
}
break;
#endif
#ifdef TARGET_NR_oldlstat
case TARGET_NR_oldlstat:
goto unimplemented;