+2016-11-08 Adhemerval Zanella <adhemerval.zanella@linaro.org>
+
+ * nptl/Makefile (libpthread-routines): Remove ptw-llseek and add
+ ptw-lseek64.
+ * sysdeps/unix/sysv/linux/Makefile (sysdeps_routines): Remove llseek.
+ * sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines):
+ Likewise.
+ * sysdeps/unix/sysv/linux/generic/wordsize-32/llseek.c: Remove file.
+ * sysdeps/unix/sysv/linux/generic/wordsize-32/lseek.c: Remove file.
+ * sysdeps/unix/sysv/linux/mips/mips64/llseek.c: Likewise.
+ * sysdeps/unix/sysv/linux/llseek.c: Remove file.
+ * sysdeps/unix/sysv/linux/lseek.c: New file.
+ * sysdeps/unix/sysv/linux/lseek64.c: Add default Linux implementation.
+ * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list: Remove lseek and
+ __libc_lseek64 from auto-generation.
+ * sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/x32/lseek64.S: New file.
+
2016-11-07 Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
* nptl/tst-basic1.c (tf, do_test): Use write_message.
pthread-compat-wrappers = \
write read close fcntl accept \
connect recv recvfrom send \
- sendto fsync lseek llseek \
+ sendto fsync lseek lseek64 \
msync nanosleep open open64 pause \
pread pread64 pwrite pwrite64 \
tcdrain wait waitpid msgrcv msgsnd \
ifeq ($(subdir),misc)
include $(firstword $(wildcard $(sysdirs:=/sysctl.mk)))
-sysdep_routines += clone llseek umount umount2 readahead \
+sysdep_routines += clone umount umount2 readahead \
setfsuid setfsgid epoll_pwait signalfd \
eventfd eventfd_read eventfd_write prlimit \
personality
sysdep_headers += alpha/ptrace.h alpha/regdef.h sys/io.h
sysdep_routines += ieee_get_fp_control ieee_set_fp_control \
- ioperm llseek
+ ioperm
# Support old timeval32 entry points
sysdep_routines += osf_select osf_gettimeofday osf_settimeofday \
#include <sysdeps/unix/sysv/linux/sysdep.h>
/* Provide the common name to allow more code reuse. */
-#define __NR__llseek __NR_llseek
+#ifdef __NR_llseek
+# define __NR__llseek __NR_llseek
+#endif
#if __WORDSIZE == 64
/* By defining the older names, glibc will build syscall wrappers for
+++ /dev/null
-/* Copyright (C) 2011-2016 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library. If not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <errno.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-/* Seek to OFFSET on FD, starting from WHENCE. */
-extern loff_t __llseek (int fd, loff_t offset, int whence);
-
-loff_t
-__llseek (int fd, loff_t offset, int whence)
-{
- loff_t retval;
-
- return (loff_t) (INLINE_SYSCALL (_llseek, 5, fd, (off_t) (offset >> 32),
- (off_t) (offset & 0xffffffff),
- &retval, whence) ?: retval);
-}
-weak_alias (__llseek, llseek)
-strong_alias (__llseek, __libc_lseek64)
-strong_alias (__llseek, __lseek64)
-weak_alias (__llseek, lseek64)
-
-/* llseek doesn't have a prototype. Since the second parameter is a
- 64bit type, this results in wrong behaviour if no prototype is
- provided. */
-link_warning (llseek, "\
-the `llseek' function may be dangerous; use `lseek64' instead.")
+++ /dev/null
-/* Long-long seek operation.
- Copyright (C) 1996-2016 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <errno.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-/* Seek to OFFSET on FD, starting from WHENCE. */
-extern loff_t __llseek (int fd, loff_t offset, int whence);
-
-loff_t
-__llseek (int fd, loff_t offset, int whence)
-{
- loff_t retval;
-
- return (loff_t) (INLINE_SYSCALL (_llseek, 5, fd, (off_t) (offset >> 32),
- (off_t) (offset & 0xffffffff),
- &retval, whence) ?: retval);
-}
-weak_alias (__llseek, llseek)
-strong_alias (__llseek, __libc_lseek64)
-strong_alias (__llseek, __lseek64)
-weak_alias (__llseek, lseek64)
-
-/* llseek doesn't have a prototype. Since the second parameter is a
- 64bit type, this results in wrong behaviour if no prototype is
- provided. */
-link_warning (llseek, "\
-the `llseek' function may be dangerous; use `lseek64' instead.")
-/* Copyright (C) 2011-2016 Free Software Foundation, Inc.
+/* Linux lseek implementation, 32 bits off_t.
+ Copyright (C) 2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
- Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
-#include <errno.h>
#include <unistd.h>
+#include <stdint.h>
#include <sys/types.h>
-
#include <sysdep.h>
-#include <sys/syscall.h>
+#include <errno.h>
+
+#ifndef __OFF_T_MATCHES_OFF64_T
-#include "overflow.h"
+/* Test for overflows of structures where we ask the kernel to fill them
+ in with standard 64-bit syscalls but return them through APIs that
+ only expose the low 32 bits of some fields. */
+
+static inline off_t lseek_overflow (loff_t res)
+{
+ off_t retval = (off_t) res;
+ if (retval == res)
+ return retval;
+
+ __set_errno (EOVERFLOW);
+ return (off_t) -1;
+}
off_t
__lseek (int fd, off_t offset, int whence)
{
+# ifdef __NR__llseek
loff_t res;
- int rc = INLINE_SYSCALL (_llseek, 5, fd, (off_t) (offset >> 31),
- (off_t) offset, &res, whence);
+ int rc = INLINE_SYSCALL_CALL (_llseek, fd,
+ (long) (((uint64_t) (offset)) >> 32),
+ (long) offset, &res, whence);
return rc ?: lseek_overflow (res);
+# else
+ return INLINE_SYSCALL_CALL (lseek, fd, offset, whence);
+# endif
}
libc_hidden_def (__lseek)
weak_alias (__lseek, lseek)
strong_alias (__lseek, __libc_lseek)
+#endif /* __OFF_T_MATCHES_OFF64_T */
-/* We don't need a definition since the llseek function is what we need. */
+/* Linux lseek implementation, 64 bits off_t.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <unistd.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sysdep.h>
+#include <errno.h>
+
+off64_t
+__lseek64 (int fd, off64_t offset, int whence)
+{
+#ifdef __NR__llseek
+ loff_t res;
+ int rc = INLINE_SYSCALL_CALL (_llseek, fd,
+ (long) (((uint64_t) (offset)) >> 32),
+ (long) offset, &res, whence);
+ return rc ?: res;
+#else
+ return INLINE_SYSCALL_CALL (lseek, fd, offset, whence);
+#endif
+}
+
+#ifdef __OFF_T_MATCHES_OFF64_T
+weak_alias (__lseek64, lseek)
+weak_alias (__lseek64, __lseek)
+strong_alias (__lseek64, __libc_lseek)
+libc_hidden_def (__lseek)
+#endif
+
+strong_alias (__lseek64, __libc_lseek64)
+weak_alias (__lseek64, lseek64)
+
+/* llseek doesn't have a prototype. Since the second parameter is a
+ 64bit type, this results in wrong behaviour if no prototype is
+ provided. */
+weak_alias (__lseek64, llseek)
+link_warning (llseek, "\
+the `llseek' function may be dangerous; use `lseek64' instead.")
+++ /dev/null
-/* lseek() is 64-bit capable already. */
# File name Caller Syscall name Args Strong name Weak names
-lseek - lseek i:iii __libc_lseek __lseek lseek __llseek llseek __libc_lseek64 __lseek64 lseek64
-
ftruncate - ftruncate i:ii __ftruncate ftruncate ftruncate64 __ftruncate64
truncate - truncate i:si truncate truncate64
# File name Caller Syscall name # args Strong name Weak names
-# Whee! 64-bit systems naturally implement llseek.
-llseek EXTRA lseek i:iii __libc_lseek __lseek lseek __libc_lseek64 __llseek llseek __lseek64 lseek64
-lseek llseek -
fstatfs - fstatfs i:ip __fstatfs fstatfs fstatfs64 __fstatfs64
statfs - statfs i:sp __statfs statfs statfs64
mmap - mmap b:aniiii __mmap mmap __mmap64 mmap64
--- /dev/null
+/* We don't need a definition since the llseek function is what we need. */
git://sourceware.org / glibc.git / commitdiff