diff options
| author | Markos Chandras <markos.chandras@imgtec.com> | 2012-10-10 14:26:07 +0100 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2013-02-20 13:45:13 +0100 |
| commit | 9f44c4ca56c2a318fb51029340a26764ed2b708f (patch) | |
| tree | a8da1fac1832072ac209b8892bc756e45457191c /libc | |
| parent | faa3bc7b7c661857925250d795c35d5c75dd4ca5 (diff) | |
open: Use openat if arch does not have the open syscall
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/sysdeps/linux/common/open.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/common/open.c b/libc/sysdeps/linux/common/open.c index a72e84d0b..aab0fb5a7 100644 --- a/libc/sysdeps/linux/common/open.c +++ b/libc/sysdeps/linux/common/open.c @@ -12,13 +12,18 @@ #include <stdarg.h> #include <cancel.h> -#define __NR___syscall_open __NR_open +#if defined __NR_open +# define __NR___syscall_open __NR_open static __always_inline _syscall3(int, __syscall_open, const char *, file, int, flags, __kernel_mode_t, mode) strong_alias_untyped(__syscall_open,__NC(open)) -#define __NR___open2_nocancel __NR_open +# define __NR___open2_nocancel __NR_open _syscall2(int, __NC(open2), const char *, file, int, flags) +#else +int __open2_nocancel(const char *, int) __nonnull ((1)) attribute_hidden; +int __open_nocancel(const char *, int, mode_t) __nonnull ((1)) attribute_hidden; +#endif int open(const char *file, int oflag, ...) { @@ -32,13 +37,26 @@ int open(const char *file, int oflag, ...) } if (SINGLE_THREAD_P) +#if defined(__NR_open) return __NC(open)(file, oflag, mode); +#elif defined(__NR_openat) + return openat(AT_FDCWD, file, oflag, mode); +#endif + #ifdef __NEW_THREADS int oldtype = LIBC_CANCEL_ASYNC (); +# if defined(__NR_open) int result = __NC(open)(file, oflag, mode); +# else + int result = openat(AT_FDCWD, file, oflag, mode); +# endif LIBC_CANCEL_RESET (oldtype); return result; #endif } lt_strong_alias(open) lt_libc_hidden(open) +#if !defined(__NR_open) +strong_alias_untyped(open,__open2_nocancel) +strong_alias_untyped(open,__open_nocancel) +#endif |