This patch adds the openat syscall to linux-user.
Index: qemu/linux-user/syscall.c
===================================================================
--- qemu.orig/linux-user/syscall.c 2007-09-19 06:18:58.000000000 -0600
+++ qemu/linux-user/syscall.c 2007-09-19 06:19:38.000000000 -0600
@@ -155,6 +155,7 @@
#define __NR_sys_getcwd1 __NR_getcwd
#define __NR_sys_getdents __NR_getdents
#define __NR_sys_getdents64 __NR_getdents64
+#define __NR_sys_openat __NR_openat
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
#define __NR_sys_syslog __NR_syslog
#define __NR_sys_tgkill __NR_tgkill
@@ -184,6 +185,9 @@
#endif
_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
loff_t *, res, uint, wh);
+#if defined(TARGET_NR_openat) && defined(__NR_openat)
+_syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
+#endif
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
@@ -2685,6 +2689,24 @@
arg3));
unlock_user(p, arg1, 0);
break;
+#if defined(TARGET_NR_openat) && defined(__NR_openat)
+ case TARGET_NR_openat:
+ if (!arg2) {
+ ret = -EFAULT;
+ goto fail;
+ }
+ p = lock_user_string(arg2);
+ if (!access_ok(VERIFY_READ, p, 1))
+ ret = -EFAULT;
+ else
+ ret = get_errno(sys_openat(arg1,
+ path(p),
+ target_to_host_bitmask(arg3, fcntl_flags_tbl),
+ arg4));
+ if (p)
+ unlock_user(p, arg2, 0);
+ break;
+#endif
case TARGET_NR_close:
ret = get_errno(close(arg1));
break;
Index: qemu/linux-user/arm/syscall_nr.h
===================================================================
--- qemu.orig/linux-user/arm/syscall_nr.h 2007-09-19 06:18:22.000000000 -0600
+++ qemu/linux-user/arm/syscall_nr.h 2007-09-19 06:19:07.000000000 -0600
@@ -325,5 +325,6 @@
#define TARGET_NR_mbind 319
#define TARGET_NR_get_mempolicy 320
#define TARGET_NR_set_mempolicy 321
+#define TARGET_NR_openat 322
#define TARGET_NR_futimesat 326
#define TARGET_NR_utimensat 348
