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[ARM] 4878/1: Add oabi shim for fstatat64

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Ccoreutils and other have started using fstatat64. Thus, we
need a shim for it if we want to support modern oldabi
userlands (such as Debian/arm/lenny) with EABI kernels.

See http://bugs.debian.org/462677

Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Riku Voipio <riku.voipio@movial.fi>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Riku Voipio
2008-03-28 13:08:09 +01:00
committed by Russell King
parent 3085354de6
commit c60afe1014
2 changed files with 25 additions and 1 deletions
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2
arch/arm/kernel/calls.S
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@@ -336,7 +336,7 @@
CALL(sys_mknodat) CALL(sys_mknodat)
/* 325 */ CALL(sys_fchownat) /* 325 */ CALL(sys_fchownat)
CALL(sys_futimesat) CALL(sys_futimesat)
CALL(sys_fstatat64) CALL(ABI(sys_fstatat64, sys_oabi_fstatat64))
CALL(sys_unlinkat) CALL(sys_unlinkat)
CALL(sys_renameat) CALL(sys_renameat)
/* 330 */ CALL(sys_linkat) /* 330 */ CALL(sys_linkat)

24
arch/arm/kernel/sys_oabi-compat.c
View File

@@ -25,6 +25,7 @@
* sys_stat64: * sys_stat64:
* sys_lstat64: * sys_lstat64:
* sys_fstat64: * sys_fstat64:
* sys_fstatat64:
* *
* struct stat64 has different sizes and some members are shifted * struct stat64 has different sizes and some members are shifted
* Compatibility wrappers are needed for them and provided below. * Compatibility wrappers are needed for them and provided below.
@@ -169,6 +170,29 @@ asmlinkage long sys_oabi_fstat64(unsigned long fd,
return error; return error;
} }
asmlinkage long sys_oabi_fstatat64(int dfd,
char __user *filename,
struct oldabi_stat64 __user *statbuf,
int flag)
{
struct kstat stat;
int error = -EINVAL;
if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
goto out;
if (flag & AT_SYMLINK_NOFOLLOW)
error = vfs_lstat_fd(dfd, filename, &stat);
else
error = vfs_stat_fd(dfd, filename, &stat);
if (!error)
error = cp_oldabi_stat64(&stat, statbuf);
out:
return error;
}
struct oabi_flock64 { struct oabi_flock64 {
short l_type; short l_type;
short l_whence; short l_whence;