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linux-user: Fix sys_utimensat (would not compile on old glibc) 

Commit c0d472b12e accidentally dropped the definition of
__NR_SYS_utimensat even though its use is guarded by
CONFIG_UTIMENSAT, not CONFIG_ATFILE. Some older glibc don't
have utimensat() (even if they have the other *at() functions).
Fix this by correctly cleaning up the sys_utimensat()
implementation and #defines, so that we always provide the
syscall if needed whether we're doing it via glibc or not.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Message-id: 1371743841-26110-1-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2013-07-02 14:04:12 +01:00 committed by Riku Voipio
parent 167c50d8f9
commit 1acae9f223
1 changed files with 12 additions and 4 deletions
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16
linux-user/syscall.c
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@ -339,6 +339,7 @@ static int sys_openat(int dirfd, const char *pathname, int flags, mode_t mode)
}
#endif
#ifdef TARGET_NR_utimensat
#ifdef CONFIG_UTIMENSAT
static int sys_utimensat(int dirfd, const char *pathname,
const struct timespec times[2], int flags)
@ -348,12 +349,19 @@ static int sys_utimensat(int dirfd, const char *pathname,
else
return utimensat(dirfd, pathname, times, flags);
}
#else
#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
#elif defined(__NR_utimensat)
#define __NR_sys_utimensat __NR_utimensat
_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
const struct timespec *,tsp,int,flags)
#else
static int sys_utimensat(int dirfd, const char *pathname,
const struct timespec times[2], int flags)
{
errno = ENOSYS;
return -1;
}
#endif
#endif /* CONFIG_UTIMENSAT */
#endif /* TARGET_NR_utimensat */
#ifdef CONFIG_INOTIFY
#include <sys/inotify.h>
@ -8627,7 +8635,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
goto unimplemented_nowarn;
#endif
#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
#if defined(TARGET_NR_utimensat)
case TARGET_NR_utimensat:
{
struct timespec *tsp, ts[2];