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authorRich Felker <dalias@aerifal.cx>2011-02-13 22:45:42 -0500
committerRich Felker <dalias@aerifal.cx>2011-02-13 22:45:42 -0500
commit2cdfb7ca26f46f151afbc23d5d94fc68597137f5 (patch)
tree0baa2cd0776f2a44997950e0bc8ab646dc2067b2 /src/unistd/lseek.c
parent978ca016593077d27cc2a828f21c5e45e57074aa (diff)
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cleaning up syscalls in preparation for x86_64 port
- hide all the legacy xxxxxx32 name cruft in syscall.h so the actual source files can be clean and uniform across all archs. - cleanup llseek/lseek and mmap2/mmap handling for 32/64 bit systems - alternate implementation for nice if the target lacks nice syscall
Diffstat (limited to 'src/unistd/lseek.c')
-rw-r--r--src/unistd/lseek.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/src/unistd/lseek.c b/src/unistd/lseek.c
index 0dab2679..0152866f 100644
--- a/src/unistd/lseek.c
+++ b/src/unistd/lseek.c
@@ -4,13 +4,12 @@
off_t lseek(int fd, off_t offset, int whence)
{
- /* optimized away at compiletime */
- if (sizeof(long) == 8)
- return syscall3(__NR_lseek, fd, offset, whence);
- else {
- off_t result;
- return syscall5(__NR__llseek, fd, offset>>32, offset, (long)&result, whence) ? -1 : result;
- }
+#ifdef __NR__llseek
+ off_t result;
+ return syscall5(__NR__llseek, fd, offset>>32, offset, (long)&result, whence) ? -1 : result;
+#else
+ return syscall3(__NR_lseek, fd, offset, whence);
+#endif
}
LFS64(lseek);