This patch adds the symlinkat syscall to linux-user.
Index: qemu/linux-user/syscall.c
===================================================================
--- qemu.orig/linux-user/syscall.c 2007-09-19 06:25:51.000000000 -0600
+++ qemu/linux-user/syscall.c 2007-09-19 06:26:51.000000000 -0600
@@ -162,6 +162,7 @@
#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
@@ -214,6 +215,10 @@
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)
@@ -3543,6 +3548,28 @@
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;
Index: qemu/linux-user/arm/syscall_nr.h
===================================================================
--- qemu.orig/linux-user/arm/syscall_nr.h 2007-09-19 06:25:08.000000000 -0600
+++ qemu/linux-user/arm/syscall_nr.h 2007-09-19 06:26:21.000000000 -0600
@@ -333,4 +333,5 @@
#define TARGET_NR_unlinkat 328
#define TARGET_NR_renameat 329
#define TARGET_NR_linkat 330
+#define TARGET_NR_symlinkat 331
#define TARGET_NR_utimensat 348
