[git commit] pread_write.c: make all archs use common code
Bernhard Reutner-Fischer
rep.dot.nop at gmail.com
Fri Jun 15 12:00:42 UTC 2012
commit: http://git.uclibc.org/uClibc/commit/?id=836d74b92d70b71792d3d6136db7cdf0c3775ee3
branch: http://git.uclibc.org/uClibc/commit/?id=refs/heads/master
c6x does not need own version at all
Signed-off-by: Peter S. Mazinger <ps.m at gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop at gmail.com>
---
libc/sysdeps/linux/c6x/Makefile.arch | 3 +-
libc/sysdeps/linux/c6x/pread_write.c | 103 --------------------------
libc/sysdeps/linux/common/pread_write.c | 2 +
libc/sysdeps/linux/mips/pread_write.c | 116 +++++++++---------------------
libc/sysdeps/linux/powerpc/pread_write.c | 70 +++++-------------
libc/sysdeps/linux/sh/pread_write.c | 109 ++++------------------------
libc/sysdeps/linux/xtensa/pread_write.c | 79 +++++----------------
7 files changed, 88 insertions(+), 394 deletions(-)
diff --git a/libc/sysdeps/linux/c6x/Makefile.arch b/libc/sysdeps/linux/c6x/Makefile.arch
index 6bb44f2..5f8aaec 100644
--- a/libc/sysdeps/linux/c6x/Makefile.arch
+++ b/libc/sysdeps/linux/c6x/Makefile.arch
@@ -5,6 +5,7 @@
# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
#
-CSRC := brk.c pread_write.c syscall.c prctl.c
+CSRC := brk.c syscall.c prctl.c
+#CSRC :=
SSRC := __longjmp.S bsd-_setjmp.S bsd-setjmp.S clone.S setjmp.S _vfork.S
diff --git a/libc/sysdeps/linux/c6x/pread_write.c b/libc/sysdeps/linux/c6x/pread_write.c
deleted file mode 100644
index f985b43..0000000
--- a/libc/sysdeps/linux/c6x/pread_write.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/* vi: set sw=4 ts=4:
- *
- * Copyright (C) 2002 by Erik Andersen <andersen at uclibc.org>
- * Based in part on the files
- * ./sysdeps/unix/sysv/linux/pwrite.c,
- * ./sysdeps/unix/sysv/linux/pread.c,
- * sysdeps/posix/pread.c
- * sysdeps/posix/pwrite.c
- * from GNU libc 2.2.5, but reworked considerably...
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#define _LARGEFILE64_SOURCE
-#include <features.h>
-#undef __OPTIMIZE__
-/* We absolutely do _NOT_ want interfaces silently
- * * * renamed under us or very bad things will happen... */
-#ifdef __USE_FILE_OFFSET64
-# undef __USE_FILE_OFFSET64
-#endif
-
-
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/syscall.h>
-#include <unistd.h>
-#include <stdint.h>
-
-extern __typeof(pread) __libc_pread;
-extern __typeof(pwrite) __libc_pwrite;
-#ifdef __UCLIBC_HAS_LFS__
-extern __typeof(pread64) __libc_pread64;
-extern __typeof(pwrite64) __libc_pwrite64;
-#endif
-
-#ifdef __NR_pread64 /* Newer kernels renamed but it's the same. */
-# ifdef __NR_pread
-# error "__NR_pread and __NR_pread64 both defined???"
-# endif
-# define __NR_pread __NR_pread64
-#endif
-
-#define __NR___syscall_pread __NR_pread
-static inline _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf,
- size_t, count, 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,offset,offset >> 31));
-}
-weak_alias (__libc_pread, pread)
-
-#if defined __UCLIBC_HAS_LFS__
-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, low, high));
-}
-weak_alias (__libc_pread64, pread64)
-#endif /* __UCLIBC_HAS_LFS__ */
-
-
-#ifdef __NR_pwrite64 /* Newer kernels renamed but it's the same. */
-# ifdef __NR_pwrite
-# error "__NR_pwrite and __NR_pwrite64 both defined???"
-# endif
-# define __NR_pwrite __NR_pwrite64
-#endif
-
-#define __NR___syscall_pwrite __NR_pwrite
-static inline _syscall5(ssize_t, __syscall_pwrite, int, fd, const void *, buf,
- size_t, count, 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,offset,offset >> 31));
-}
-weak_alias (__libc_pwrite, pwrite)
-
-#if defined __UCLIBC_HAS_LFS__
-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, low, high));
-}
-weak_alias (__libc_pwrite64, pwrite64)
-#endif /* __UCLIBC_HAS_LFS__ */
-
diff --git a/libc/sysdeps/linux/common/pread_write.c b/libc/sysdeps/linux/common/pread_write.c
index 3d04bb7..dd5d36c 100644
--- a/libc/sysdeps/linux/common/pread_write.c
+++ b/libc/sysdeps/linux/common/pread_write.c
@@ -35,6 +35,7 @@ static _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf,
size_t, count, off_t, offset_hi, off_t, offset_lo)
# define MY_PREAD(fd, buf, count, offset) __syscall_pread(fd, buf, count, OFF_HI_LO(offset))
# define MY_PREAD64(fd, buf, count, offset) __syscall_pread(fd, buf, count, OFF64_HI_LO(offset))
+# endif
#endif
#ifndef MY_PWRITE
@@ -44,6 +45,7 @@ static _syscall5(ssize_t, __syscall_pwrite, int, fd, const void *, buf,
size_t, count, off_t, offset_hi, off_t, offset_lo)
# define MY_PWRITE(fd, buf, count, offset) __syscall_pwrite(fd, buf, count, OFF_HI_LO(offset))
# define MY_PWRITE64(fd, buf, count, offset) __syscall_pwrite(fd, buf, count, OFF64_HI_LO(offset))
+# endif
#endif
static ssize_t __NC(pread)(int fd, void *buf, size_t count, off_t offset)
diff --git a/libc/sysdeps/linux/mips/pread_write.c b/libc/sysdeps/linux/mips/pread_write.c
index ea6b15f..b777dc4 100644
--- a/libc/sysdeps/linux/mips/pread_write.c
+++ b/libc/sysdeps/linux/mips/pread_write.c
@@ -4,76 +4,39 @@
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
-/*
- * Based in part on the files
- * ./sysdeps/unix/sysv/linux/pwrite.c,
- * ./sysdeps/unix/sysv/linux/pread.c,
- * sysdeps/posix/pread.c
- * sysdeps/posix/pwrite.c
- * from GNU libc 2.2.5, but reworked considerably...
- */
#include <sys/syscall.h>
#include <unistd.h>
-#include <stdint.h>
#include <endian.h>
#include <sgidefs.h>
-#ifdef __NR_pread64 /* Newer kernels renamed but it's the same. */
+#ifdef __NR_pread64
# ifdef __NR_pread
# error "__NR_pread and __NR_pread64 both defined???"
# endif
# define __NR_pread __NR_pread64
#endif
-extern __typeof(pread) __libc_pread;
-extern __typeof(pwrite) __libc_pwrite;
-#ifdef __UCLIBC_HAS_LFS__
-extern __typeof(pread64) __libc_pread64;
-extern __typeof(pwrite64) __libc_pwrite64;
-#endif
-
-#include <bits/kernel_types.h>
-
-
#ifdef __NR_pread
-
-# if _MIPS_SIM == _MIPS_SIM_ABI64
-# define __NR___libc_pread __NR_pread
-_syscall4(ssize_t, __libc_pread, int, fd, void *, buf, size_t, count, off_t, offset)
-weak_alias (__libc_pread, pread)
-# ifdef __UCLIBC_HAS_LFS__
-# define __NR___libc_pread64 __NR_pread
-_syscall4(ssize_t, __libc_pread64, int, fd, void *, buf, size_t, count, off64_t, offset)
-weak_alias (__libc_pread64, pread64)
-# endif /* __UCLIBC_HAS_LFS__ */
+# if _MIPS_SIM == _MIPS_SIM_ABI64 /* glibc uses it for N32 as well */
+# define __NR___syscall_pread __NR_pread
+static _syscall4(ssize_t, __syscall_pread, int, fd, void *, buf, size_t, count, off_t, offset)
+# define MY_PREAD(fd, buf, count, offset) \
+ __syscall_pread(fd, buf, count, offset)
+# define MY_PREAD64(fd, buf, count, offset) \
+ __syscall_pread(fd, buf, count, offset)
# else /* O32 || N32 */
# 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(offset>>31,offset)));
-}
-weak_alias(__libc_pread,pread)
-
-# ifdef __UCLIBC_HAS_LFS__
-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)));
-}
-weak_alias(__libc_pread64,pread64)
-# endif /* __UCLIBC_HAS_LFS__ */
-# endif /* O32 || N32 */
-
-#endif /* __NR_pread */
-
-/**********************************************************************/
+static _syscall6(ssize_t, __syscall_pread, int, fd, void *, buf,
+ size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo)
+# define MY_PREAD(fd, buf, count, offset) \
+ __syscall_pread(fd, buf, count, 0, OFF_HI_LO(offset))
+# define MY_PREAD64(fd, buf, count, offset) \
+ __syscall_pread(fd, buf, count, 0, OFF64_HI_LO(offset))
+# endif
+#endif
-#ifdef __NR_pwrite64 /* Newer kernels renamed but it's the same. */
+#ifdef __NR_pwrite64
# ifdef __NR_pwrite
# error "__NR_pwrite and __NR_pwrite64 both defined???"
# endif
@@ -81,35 +44,22 @@ weak_alias(__libc_pread64,pread64)
#endif
#ifdef __NR_pwrite
-
-# if _MIPS_SIM == _MIPS_SIM_ABI64
-# define __NR___libc_pwrite __NR_pwrite
-_syscall4(ssize_t, __libc_pwrite, int, fd, const void *, buf, size_t, count, off_t, offset)
-weak_alias (__libc_pwrite, pwrite)
-# ifdef __UCLIBC_HAS_LFS__
-# define __NR___libc_pwrite64 __NR_pwrite
-_syscall4(ssize_t, __libc_pwrite64, int, fd, const void *, buf, size_t, count, off64_t, offset)
-weak_alias (__libc_pwrite64, pwrite64)
-# endif /* __UCLIBC_HAS_LFS__ */
+# if _MIPS_SIM == _MIPS_SIM_ABI64 /* glibc uses it for N32 as well */
+# define __NR___syscall_pwrite __NR_pwrite
+static _syscall4(ssize_t, __syscall_pwrite, int, fd, const void *, buf, size_t, count, off_t, offset)
+# define MY_PWRITE(fd, buf, count, offset) \
+ __syscall_pwrite(fd, buf, count, offset)
+# define MY_PWRITE64(fd, buf, count, offset) \
+ __syscall_pwrite(fd, buf, count, offset)
# else /* O32 || N32 */
# 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(offset>>31,offset)));
-}
-weak_alias(__libc_pwrite,pwrite)
+static _syscall6(ssize_t, __syscall_pwrite, int, fd, const void *, buf,
+ size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo)
+# define MY_PWRITE(fd, buf, count, offset) \
+ __syscall_pwrite(fd, buf, count, 0, OFF_HI_LO(offset))
+# define MY_PWRITE64(fd, buf, count, offset) \
+ __syscall_pwrite(fd, buf, count, 0, OFF64_HI_LO(offset))
+# endif
+#endif
-# ifdef __UCLIBC_HAS_LFS__
-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)));
-}
-weak_alias(__libc_pwrite64,pwrite64)
-# endif /* __UCLIBC_HAS_LFS__ */
-# endif /* O32 || N32 */
-#endif /* __NR_pwrite */
+#include "../common/pread_write.c"
diff --git a/libc/sysdeps/linux/powerpc/pread_write.c b/libc/sysdeps/linux/powerpc/pread_write.c
index 92a184c..5cb3386 100644
--- a/libc/sysdeps/linux/powerpc/pread_write.c
+++ b/libc/sysdeps/linux/powerpc/pread_write.c
@@ -1,26 +1,15 @@
-/* vi: set sw=4 ts=4:
- *
+/* vi: set sw=4 ts=4: */
+/*
* Copyright (C) 2000-2006 Erik Andersen <andersen at uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
-/* Based in part on the files
- * ./sysdeps/unix/sysv/linux/pwrite.c,
- * ./sysdeps/unix/sysv/linux/pread.c,
- * sysdeps/posix/pread.c
- * sysdeps/posix/pwrite.c
- * from GNU libc 2.2.5, but reworked considerably...
- */
#include <sys/syscall.h>
#include <unistd.h>
#include <endian.h>
-#ifndef __UCLIBC_HAS_LFS__
-# define off64_t off_t
-#endif
-
-#ifdef __NR_pread64 /* Newer kernels renamed but it's the same. */
+#ifdef __NR_pread64
# ifdef __NR_pread
# error "__NR_pread and __NR_pread64 both defined???"
# endif
@@ -28,28 +17,16 @@
#endif
#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, 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(offset >> 31, offset)));
-}
-weak_alias(__libc_pread,pread)
-
-# ifdef __UCLIBC_HAS_LFS__
-extern __typeof(pread64) __libc_pread64;
-ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset)
-{
- return(__syscall_pread(fd, buf, count, 0, __LONG_LONG_PAIR(offset >> 32, offset)));
-}
-weak_alias(__libc_pread64,pread64)
-# endif /* __UCLIBC_HAS_LFS__ */
-#endif /* __NR_pread */
+static _syscall6(ssize_t, __syscall_pread, int, fd, void *, buf,
+ size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo)
+# define MY_PREAD(fd, buf, count, offset) \
+ __syscall_pread(fd, buf, count, 0, OFF_HI_LO(offset))
+# define MY_PREAD64(fd, buf, count, offset) \
+ __syscall_pread(fd, buf, count, 0, OFF64_HI_LO(offset))
+#endif
-#ifdef __NR_pwrite64 /* Newer kernels renamed but it's the same. */
+#ifdef __NR_pwrite64
# ifdef __NR_pwrite
# error "__NR_pwrite and __NR_pwrite64 both defined???"
# endif
@@ -57,23 +34,14 @@ weak_alias(__libc_pread64,pread64)
#endif
#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, 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(offset >> 31, offset)));
-}
-weak_alias(__libc_pwrite,pwrite)
+static _syscall6(ssize_t, __syscall_pwrite, int, fd, const void *, buf,
+ size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo)
+# define MY_PWRITE(fd, buf, count, offset) \
+ __syscall_pwrite(fd, buf, count, 0, OFF_HI_LO(offset))
+# define MY_PWRITE64(fd, buf, count, offset) \
+ __syscall_pwrite(fd, buf, count, 0, OFF64_HI_LO(offset))
+#endif
-# ifdef __UCLIBC_HAS_LFS__
-extern __typeof(pwrite64) __libc_pwrite64;
-ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset)
-{
- return(__syscall_pwrite(fd, buf, count, 0, __LONG_LONG_PAIR(offset >> 32, offset)));
-}
-weak_alias(__libc_pwrite64,pwrite64)
-# endif /* __UCLIBC_HAS_LFS__ */
-#endif /* __NR_pwrite */
+#include "../common/pread_write.c"
diff --git a/libc/sysdeps/linux/sh/pread_write.c b/libc/sysdeps/linux/sh/pread_write.c
index 86feb9c..f4453a6 100644
--- a/libc/sysdeps/linux/sh/pread_write.c
+++ b/libc/sysdeps/linux/sh/pread_write.c
@@ -4,28 +4,12 @@
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
-/*
- * Based in part on the files
- * ./sysdeps/unix/sysv/linux/pwrite.c,
- * ./sysdeps/unix/sysv/linux/pread.c,
- * sysdeps/posix/pread.c
- * sysdeps/posix/pwrite.c
- * from GNU libc 2.2.5, but reworked considerably...
- */
#include <sys/syscall.h>
#include <unistd.h>
-#include <stdint.h>
#include <endian.h>
-#ifdef __UCLIBC_HAS_THREADS_NATIVE__
-#include <sysdep-cancel.h>
-#else
-#define SINGLE_THREAD_P 1
-#endif
-
-
-#ifdef __NR_pread64 /* Newer kernels renamed but it's the same. */
+#ifdef __NR_pread64
# ifdef __NR_pread
# error "__NR_pread and __NR_pread64 both defined???"
# endif
@@ -33,49 +17,16 @@
#endif
#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,
- 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)
-{
- if (SINGLE_THREAD_P)
- return(__syscall_pread(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset)));
-
-#ifdef __UCLIBC_HAS_THREADS_NATIVE__
- int oldtype = LIBC_CANCEL_ASYNC ();
- ssize_t result = __syscall_pread(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset));
- LIBC_CANCEL_RESET (oldtype);
- return result;
-#endif
-}
-weak_alias(__libc_pread,pread)
-
-# 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;
-
- if (SINGLE_THREAD_P)
- return __syscall_pread(fd, buf, count, 0, __LONG_LONG_PAIR (high, low));
-
-#ifdef __UCLIBC_HAS_THREADS_NATIVE__
- int oldtype = LIBC_CANCEL_ASYNC ();
- ssize_t result = __syscall_pread(fd, buf, count, 0, __LONG_LONG_PAIR (high, low));
- LIBC_CANCEL_RESET (oldtype);
- return result;
+static _syscall6(ssize_t, __syscall_pread, int, fd, void *, buf,
+ size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo)
+# define MY_PREAD(fd, buf, count, offset) \
+ __syscall_pread(fd, buf, count, 0, OFF_HI_LO(offset))
+# define MY_PREAD64(fd, buf, count, offset) \
+ __syscall_pread(fd, buf, count, 0, OFF64_HI_LO(offset))
#endif
-}
-weak_alias(__libc_pread64,pread64)
-# endif /* __UCLIBC_HAS_LFS__ */
-#endif /* __NR_pread */
-
-/**********************************************************************/
-#ifdef __NR_pwrite64 /* Newer kernels renamed but it's the same. */
+#ifdef __NR_pwrite64
# ifdef __NR_pwrite
# error "__NR_pwrite and __NR_pwrite64 both defined???"
# endif
@@ -83,43 +34,13 @@ weak_alias(__libc_pread64,pread64)
#endif
#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,
- 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)
-{
- if (SINGLE_THREAD_P)
- return __syscall_pwrite(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset));
-
-#ifdef __UCLIBC_HAS_THREADS_NATIVE__
- int oldtype = LIBC_CANCEL_ASYNC ();
- ssize_t result = __syscall_pwrite(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset));
- LIBC_CANCEL_RESET (oldtype);
- return result;
+static _syscall6(ssize_t, __syscall_pwrite, int, fd, const void *, buf,
+ size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo)
+# define MY_PWRITE(fd, buf, count, offset) \
+ __syscall_pwrite(fd, buf, count, 0, OFF_HI_LO(offset))
+# define MY_PWRITE64(fd, buf, count, offset) \
+ __syscall_pwrite(fd, buf, count, 0, OFF64_HI_LO(offset))
#endif
-}
-weak_alias(__libc_pwrite,pwrite)
-
-# 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;
-
- if (SINGLE_THREAD_P)
- return __syscall_pwrite(fd, buf, count, 0, __LONG_LONG_PAIR (high, low));
-
-#ifdef __UCLIBC_HAS_THREADS_NATIVE__
- int oldtype = LIBC_CANCEL_ASYNC ();
- ssize_t result = __syscall_pwrite(fd, buf, count, 0, __LONG_LONG_PAIR (high, low));
- LIBC_CANCEL_RESET (oldtype);
- return result;
-#endif
-}
-weak_alias(__libc_pwrite64,pwrite64)
-# endif /* __UCLIBC_HAS_LFS__ */
-#endif /* __NR_pwrite */
+#include "../common/pread_write.c"
diff --git a/libc/sysdeps/linux/xtensa/pread_write.c b/libc/sysdeps/linux/xtensa/pread_write.c
index e8b39e9..f4453a6 100644
--- a/libc/sysdeps/linux/xtensa/pread_write.c
+++ b/libc/sysdeps/linux/xtensa/pread_write.c
@@ -4,30 +4,12 @@
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
-/*
- * Based in part on the files
- * ./sysdeps/unix/sysv/linux/pwrite.c,
- * ./sysdeps/unix/sysv/linux/pread.c,
- * sysdeps/posix/pread.c
- * sysdeps/posix/pwrite.c
- * from GNU libc 2.2.5, but reworked considerably...
- */
#include <sys/syscall.h>
#include <unistd.h>
-#include <stdint.h>
#include <endian.h>
-extern __typeof(pread) __libc_pread;
-extern __typeof(pwrite) __libc_pwrite;
-#ifdef __UCLIBC_HAS_LFS__
-extern __typeof(pread64) __libc_pread64;
-extern __typeof(pwrite64) __libc_pwrite64;
-#endif
-
-#include <bits/kernel_types.h>
-
-#ifdef __NR_pread64 /* Newer kernels renamed but it's the same. */
+#ifdef __NR_pread64
# ifdef __NR_pread
# error "__NR_pread and __NR_pread64 both defined???"
# endif
@@ -35,31 +17,16 @@ extern __typeof(pwrite64) __libc_pwrite64;
#endif
#ifdef __NR_pread
-
# define __NR___syscall_pread __NR_pread
-/* On Xtensa, 64-bit values are aligned in even/odd register pairs. */
-static __inline__ _syscall6(ssize_t, __syscall_pread, int, fd, void *, buf,
- size_t, count, int, pad, 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(offset >> 31, offset));
-}
-weak_alias(__libc_pread,pread)
-
-# ifdef __UCLIBC_HAS_LFS__
-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));
-}
-weak_alias(__libc_pread64,pread64)
-# endif /* __UCLIBC_HAS_LFS__ */
-
-#endif /* __NR_pread */
+static _syscall6(ssize_t, __syscall_pread, int, fd, void *, buf,
+ size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo)
+# define MY_PREAD(fd, buf, count, offset) \
+ __syscall_pread(fd, buf, count, 0, OFF_HI_LO(offset))
+# define MY_PREAD64(fd, buf, count, offset) \
+ __syscall_pread(fd, buf, count, 0, OFF64_HI_LO(offset))
+#endif
-#ifdef __NR_pwrite64 /* Newer kernels renamed but it's the same. */
+#ifdef __NR_pwrite64
# ifdef __NR_pwrite
# error "__NR_pwrite and __NR_pwrite64 both defined???"
# endif
@@ -67,25 +34,13 @@ weak_alias(__libc_pread64,pread64)
#endif
#ifdef __NR_pwrite
-
# define __NR___syscall_pwrite __NR_pwrite
-/* On Xtensa, 64-bit values are aligned in even/odd register pairs. */
-static __inline__ _syscall6(ssize_t, __syscall_pwrite, int, fd, const void *, buf,
- size_t, count, int, pad, 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(offset >> 31, offset));
-}
-weak_alias(__libc_pwrite,pwrite)
+static _syscall6(ssize_t, __syscall_pwrite, int, fd, const void *, buf,
+ size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo)
+# define MY_PWRITE(fd, buf, count, offset) \
+ __syscall_pwrite(fd, buf, count, 0, OFF_HI_LO(offset))
+# define MY_PWRITE64(fd, buf, count, offset) \
+ __syscall_pwrite(fd, buf, count, 0, OFF64_HI_LO(offset))
+#endif
-# ifdef __UCLIBC_HAS_LFS__
-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));
-}
-weak_alias(__libc_pwrite64,pwrite64)
-# endif /* __UCLIBC_HAS_LFS__ */
-#endif /* __NR_pwrite */
+#include "../common/pread_write.c"
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