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authorRiku Voipio <riku.voipio@iki.fi>2008-03-28 08:08:09 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-03-28 11:00:46 -0400
commitc60afe1014dc4b8d2211fb6cc9dd08ebab31d00b (patch)
tree93e51816fd0ec592a3397f2506cf3740dc6add17 /arch/arm
parent3085354de635179d70c240e6d942bcbd1d93056c (diff)
[ARM] 4878/1: Add oabi shim for fstatat64
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>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/kernel/calls.S2
-rw-r--r--arch/arm/kernel/sys_oabi-compat.c24
2 files changed, 25 insertions, 1 deletions
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 283e14fff993..7e97b7376563 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -336,7 +336,7 @@
336 CALL(sys_mknodat) 336 CALL(sys_mknodat)
337/* 325 */ CALL(sys_fchownat) 337/* 325 */ CALL(sys_fchownat)
338 CALL(sys_futimesat) 338 CALL(sys_futimesat)
339 CALL(sys_fstatat64) 339 CALL(ABI(sys_fstatat64, sys_oabi_fstatat64))
340 CALL(sys_unlinkat) 340 CALL(sys_unlinkat)
341 CALL(sys_renameat) 341 CALL(sys_renameat)
342/* 330 */ CALL(sys_linkat) 342/* 330 */ CALL(sys_linkat)
diff --git a/arch/arm/kernel/sys_oabi-compat.c b/arch/arm/kernel/sys_oabi-compat.c
index e8b98046895b..96ab5f52949c 100644
--- a/arch/arm/kernel/sys_oabi-compat.c
+++ b/arch/arm/kernel/sys_oabi-compat.c
@@ -25,6 +25,7 @@
25 * sys_stat64: 25 * sys_stat64:
26 * sys_lstat64: 26 * sys_lstat64:
27 * sys_fstat64: 27 * sys_fstat64:
28 * sys_fstatat64:
28 * 29 *
29 * struct stat64 has different sizes and some members are shifted 30 * struct stat64 has different sizes and some members are shifted
30 * Compatibility wrappers are needed for them and provided below. 31 * Compatibility wrappers are needed for them and provided below.
@@ -169,6 +170,29 @@ asmlinkage long sys_oabi_fstat64(unsigned long fd,
169 return error; 170 return error;
170} 171}
171 172
173asmlinkage long sys_oabi_fstatat64(int dfd,
174 char __user *filename,
175 struct oldabi_stat64 __user *statbuf,
176 int flag)
177{
178 struct kstat stat;
179 int error = -EINVAL;
180
181 if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
182 goto out;
183
184 if (flag & AT_SYMLINK_NOFOLLOW)
185 error = vfs_lstat_fd(dfd, filename, &stat);
186 else
187 error = vfs_stat_fd(dfd, filename, &stat);
188
189 if (!error)
190 error = cp_oldabi_stat64(&stat, statbuf);
191
192out:
193 return error;
194}
195
172struct oabi_flock64 { 196struct oabi_flock64 {
173 short l_type; 197 short l_type;
174 short l_whence; 198 short l_whence;