This patch adds the fchmodat syscall to linux-user.
Index: qemu/linux-user/syscall.c
===================================================================
--- qemu.orig/linux-user/syscall.c 2007-09-19 06:27:29.000000000 -0600
+++ qemu/linux-user/syscall.c 2007-09-19 06:28:02.000000000 -0600
@@ -151,6 +151,7 @@
#define __NR_sys_uname __NR_uname
+#define __NR_sys_fchmodat __NR_fchmodat
#define __NR_sys_fchownat __NR_fchownat
#define __NR_sys_futimesat __NR_futimesat
#define __NR_sys_getcwd1 __NR_getcwd
@@ -182,6 +183,10 @@
}
#endif
_syscall1(int,sys_uname,struct new_utsname *,buf)
+#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
+_syscall4(int,sys_fchmodat,int,dirfd,const char *,pathname,
+ mode_t,mode,int,flags)
+#endif
#if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
_syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
uid_t,owner,gid_t,group,int,flags)
@@ -3715,6 +3720,21 @@
case TARGET_NR_fchmod:
ret = get_errno(fchmod(arg1, arg2));
break;
+#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
+ case TARGET_NR_fchmodat:
+ 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_fchmodat(arg1, p, arg3, arg4));
+ if (p)
+ unlock_user(p, arg2, 0);
+ break;
+#endif
case TARGET_NR_getpriority:
ret = get_errno(getpriority(arg1, arg2));
break;
Index: qemu/linux-user/arm/syscall_nr.h
===================================================================
--- qemu.orig/linux-user/arm/syscall_nr.h 2007-09-19 06:26:57.000000000 -0600
+++ qemu/linux-user/arm/syscall_nr.h 2007-09-19 06:27:37.000000000 -0600
@@ -335,4 +335,5 @@
#define TARGET_NR_linkat 330
#define TARGET_NR_symlinkat 331
#define TARGET_NR_readlinkat 332
+#define TARGET_NR_fchmodat 333
#define TARGET_NR_utimensat 348
