diff options
Diffstat (limited to 'libc/sysdeps/linux/common/llseek.c')
| -rw-r--r-- | libc/sysdeps/linux/common/llseek.c | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/libc/sysdeps/linux/common/llseek.c b/libc/sysdeps/linux/common/llseek.c index 333770af0..09f5435a4 100644 --- a/libc/sysdeps/linux/common/llseek.c +++ b/libc/sysdeps/linux/common/llseek.c @@ -9,30 +9,24 @@ #include <_lfs_64.h> #include <sys/syscall.h> -#include <unistd.h> -#include <stdint.h> +#include <bits/wordsize.h> /* Newer kernel ports have llseek() instead of _llseek() */ #if !defined __NR__llseek && defined __NR_llseek # define __NR__llseek __NR_llseek #endif -#ifdef __NR__llseek -off64_t lseek64(int fd, off64_t offset, int whence) +#if defined __NR__llseek && __WORDSIZE == 32 +# include <unistd.h> +# include <endian.h> +# include <cancel.h> +off64_t __NC(lseek64)(int fd, off64_t offset, int whence) { off64_t result; - return (off64_t)INLINE_SYSCALL(_llseek, 5, fd, (off_t) (offset >> 32), - (off_t) (offset & 0xffffffff), &result, whence) ?: result; + /* do we not need to handle the offset with __LONG_LONG_PAIR depending on endianness? */ + return (off64_t)INLINE_SYSCALL(_llseek, 5, fd, (off_t) OFF64_HI(offset), + (off_t) OFF64_LO(offset), &result, whence) ?: result; } -#else -off64_t lseek64(int fd, off64_t offset, int whence) -{ - return (off64_t)lseek(fd, (off_t) (offset), whence); -} -#endif -#ifndef __LINUXTHREADS_OLD__ -libc_hidden_def(lseek64) -#else -libc_hidden_weak(lseek64) -strong_alias(lseek64,__libc_lseek64) +CANCELLABLE_SYSCALL(off64_t, lseek64, (int fd, off64_t offset, int whence), (fd, offset, whence)) +lt_libc_hidden(lseek64) #endif |