diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2014-01-09 15:05:45 +0530 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2014-08-18 12:00:49 +0200 |
| commit | 95ec1755ef61629169a79a616ec478988bb6ce7d (patch) | |
| tree | 02f7fcfe9216f574e6e51fba2462ed2bd605d839 | |
| parent | 775d660544116a4f0007cdf6a6f32d2ce8346a77 (diff) | |
libc: posix_fadvise: Fix build breakage for !LFS
commit 00571b43df2e "libc: posix_fadvise: restore implementation for xtensa"
enabled posix_fadvise() for all arches (it was just not generated
before).
However this also unearthed an issue introduced by ee84b8b400
"linux: posix_fadvise: use new SYSCALL_ALIGN_64BIT" which is to
referencing LFS'ish code (off64_t) w/o proper checks which causes build
to break for !LFS.
Fix this by calling posix_fadvise64() only for LFS case and open-code
it's equivalent for !LFS.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Khem Raj <raj.khem@gmail.com>
Cc: markos Chandras <markos.chandras@gmail.com>
Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
| -rw-r--r-- | libc/sysdeps/linux/common/posix_fadvise.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/libc/sysdeps/linux/common/posix_fadvise.c b/libc/sysdeps/linux/common/posix_fadvise.c index 25c294178..14bbeeea1 100644 --- a/libc/sysdeps/linux/common/posix_fadvise.c +++ b/libc/sysdeps/linux/common/posix_fadvise.c @@ -22,17 +22,34 @@ # include <endian.h> # include <bits/wordsize.h> -# ifdef __NR_fadvise64_64 -int posix_fadvise64(int fd, off64_t offset, off64_t len, int advice); -# endif +# if defined(__NR_fadvise64_64) && defined(__UCLIBC_HAS_LFS__) +#include <_lfs_64.h> +int posix_fadvise64(int fd, off64_t offset, off64_t len, int advice); int posix_fadvise(int fd, off_t offset, off_t len, int advice) { -# ifdef __NR_fadvise64_64 return posix_fadvise64(fd, offset, len, advice); -# else +} +#else + +int posix_fadvise(int fd, off_t offset, off_t len, int advice) +{ int ret; INTERNAL_SYSCALL_DECL(err); + +# ifdef __NR_fadvise64_64 +# if __WORDSIZE == 64 + ret = INTERNAL_SYSCALL(fadvise64_64, err, 4, fd, offset, len, advice); +# else +# if defined(__UCLIBC_SYSCALL_ALIGN_64BIT__) || defined(__arm__) + ret = INTERNAL_SYSCALL(fadvise64_64, err, 6, fd, advice, + OFF_HI_LO (offset), OFF_HI_LO (len)); +# else + ret = INTERNAL_SYSCALL(fadvise64_64, err, 6, fd, + OFF_HI_LO (offset), OFF_HI_LO (len), advice); +# endif +# endif +# else /* __NR_fadvise64 */ # if __WORDSIZE == 64 ret = INTERNAL_SYSCALL(fadvise64, err, 4, fd, offset, len, advice); # else @@ -43,12 +60,13 @@ int posix_fadvise(int fd, off_t offset, off_t len, int advice) # endif OFF_HI_LO (offset), len, advice); # endif +# endif if (INTERNAL_SYSCALL_ERROR_P (ret, err)) return INTERNAL_SYSCALL_ERRNO (ret, err); return 0; -# endif } # if defined __UCLIBC_HAS_LFS__ && (!defined __NR_fadvise64_64 || __WORDSIZE == 64) strong_alias(posix_fadvise,posix_fadvise64) # endif #endif +#endif |