diff options
Diffstat (limited to 'libc/sysdeps')
| -rw-r--r-- | libc/sysdeps/linux/sh/pread_write.c | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/libc/sysdeps/linux/sh/pread_write.c b/libc/sysdeps/linux/sh/pread_write.c index 9cc4bbf97..415572ef7 100644 --- a/libc/sysdeps/linux/sh/pread_write.c +++ b/libc/sysdeps/linux/sh/pread_write.c @@ -1,12 +1,13 @@ -/* vi: set sw=4 ts=4: - * +/* vi: set sw=4 ts=4: */ +/* * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ -/* Based in part on the files +/* + * Based in part on the files * ./sysdeps/unix/sysv/linux/pwrite.c, - * ./sysdeps/unix/sysv/linux/pread.c, + * ./sysdeps/unix/sysv/linux/pread.c, * sysdeps/posix/pread.c * sysdeps/posix/pwrite.c * from GNU libc 2.2.5, but reworked considerably... @@ -15,6 +16,7 @@ #include <sys/syscall.h> #include <unistd.h> #include <stdint.h> +#include <endian.h> #ifdef __NR_pread64 /* Newer kernels renamed but it's the same. */ # ifdef __NR_pread @@ -25,20 +27,20 @@ #ifdef __NR_pread extern __typeof(pread) __libc_pread; -# define __NR___syscall_pread __NR_pread -static inline _syscall6(ssize_t, __syscall_pread, int, fd, void *, buf, +# define __NR___syscall_pread __NR_pread +static inline _syscall6(ssize_t, __syscall_pread, int, fd, void *, buf, size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo); ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset) -{ +{ return(__syscall_pread(fd,buf,count,0,__LONG_LONG_PAIR((off_t)0,offset))); } weak_alias(__libc_pread,pread) -# ifdef __UCLIBC_HAS_LFS__ +# ifdef __UCLIBC_HAS_LFS__ extern __typeof(pread64) __libc_pread64; ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset) -{ +{ uint32_t low = offset & 0xffffffff; uint32_t high = offset >> 32; return(__syscall_pread(fd, buf, count, 0, __LONG_LONG_PAIR (high, low))); @@ -58,20 +60,20 @@ weak_alias(__libc_pread64,pread64) #ifdef __NR_pwrite extern __typeof(pwrite) __libc_pwrite; -# define __NR___syscall_pwrite __NR_pwrite -static inline _syscall6(ssize_t, __syscall_pwrite, int, fd, const void *, buf, +# define __NR___syscall_pwrite __NR_pwrite +static inline _syscall6(ssize_t, __syscall_pwrite, int, fd, const void *, buf, size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo); ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset) -{ +{ return(__syscall_pwrite(fd,buf,count,0,__LONG_LONG_PAIR((off_t)0,offset))); } weak_alias(__libc_pwrite,pwrite) -# ifdef __UCLIBC_HAS_LFS__ +# ifdef __UCLIBC_HAS_LFS__ extern __typeof(pwrite64) __libc_pwrite64; ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset) -{ +{ uint32_t low = offset & 0xffffffff; uint32_t high = offset >> 32; return(__syscall_pwrite(fd, buf, count, 0, __LONG_LONG_PAIR (high, low))); |