diff options
| author | Markos Chandras <markos.chandras@imgtec.com> | 2012-10-11 11:10:50 +0100 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2013-02-20 13:45:12 +0100 |
| commit | f7bead5adac96d9cb72aa2fb3c11ca5ab8f5f6b9 (patch) | |
| tree | 1b8ddadafa93a6546afa52d052f6fe467fc6b19c | |
| parent | bad1b218da611bfe521a12130077e70a9c484b7b (diff) | |
truncate: Use truncate64 if arch does not have the truncate syscall
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
| -rw-r--r-- | include/unistd.h | 1 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/truncate.c | 20 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/truncate64.c | 4 |
3 files changed, 24 insertions, 1 deletions
diff --git a/include/unistd.h b/include/unistd.h index 8f2a09a62..540062a42 100644 --- a/include/unistd.h +++ b/include/unistd.h @@ -1110,6 +1110,7 @@ extern int __REDIRECT_NTH (truncate, # ifdef __USE_LARGEFILE64 extern int truncate64 (const char *__file, __off64_t __length) __THROW __nonnull ((1)) __wur; +libc_hidden_proto(truncate64) # endif #endif /* Use BSD || X/Open Unix. */ diff --git a/libc/sysdeps/linux/common/truncate.c b/libc/sysdeps/linux/common/truncate.c index fe7bda9e2..0c533df94 100644 --- a/libc/sysdeps/linux/common/truncate.c +++ b/libc/sysdeps/linux/common/truncate.c @@ -10,5 +10,25 @@ #include <sys/syscall.h> #include <unistd.h> +#if defined(__NR_truncate64) && !defined(__NR_truncate) +# include <endian.h> +# include <stdint.h> + +int truncate(const char *path, __off_t length) +{ +# if defined __UCLIBC_HAS_LFS + return truncate64(path, length); +# elif __WORDSIZE == 32 +# if defined(__UCLIBC_TRUNCATE64_HAS_4_ARGS__) + return INLINE_SYSCALL(truncate64, 4, path, 0, OFF_HI_LO(length)); +# else + return INLINE_SYSCALL(truncate64, 3, path, OFF_HI_LO(length)); +# endif +# endif +} +libc_hidden_def(truncate); + +#else _syscall2(int, truncate, const char *, path, __off_t, length) libc_hidden_def(truncate) +#endif diff --git a/libc/sysdeps/linux/common/truncate64.c b/libc/sysdeps/linux/common/truncate64.c index 6dfdc4c07..1f5f862e5 100644 --- a/libc/sysdeps/linux/common/truncate64.c +++ b/libc/sysdeps/linux/common/truncate64.c @@ -52,4 +52,6 @@ int truncate64(const char * path, __off64_t length) return -1; } -#endif + +#endif /* __NR_truncate64 */ +libc_hidden_def(truncate64) |