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-rw-r--r--ChangeLog29
-rw-r--r--misc/Makefile2
-rw-r--r--nptl/tst-cancel4.c45
-rw-r--r--sysdeps/unix/sysv/linux/generic/wordsize-32/preadv.c38
-rw-r--r--sysdeps/unix/sysv/linux/generic/wordsize-32/preadv64.c38
-rw-r--r--sysdeps/unix/sysv/linux/mips/mips64/n64/preadv64.c1
-rw-r--r--sysdeps/unix/sysv/linux/preadv.c77
-rw-r--r--sysdeps/unix/sysv/linux/preadv64.c59
-rw-r--r--sysdeps/unix/sysv/linux/wordsize-64/preadv.c64
-rw-r--r--sysdeps/unix/sysv/linux/wordsize-64/preadv64.c1
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list1
11 files changed, 155 insertions, 200 deletions
diff --git a/ChangeLog b/ChangeLog
index 9930b5e..b541737 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,32 @@
+2016-06-06 Adhemerval Zanella <adhemerval.zanella@linaro.org>
+
+ * misc/Makefile (CFLAGS-preadv.c): New variable: add cancellation
+ required flags.
+ (CFLAGS-preadv64.c): Likewise.
+ * sysdeps/unix/sysv/linux/generic/wordsize-32/preadv.c: Remove file.
+ * sysdeps/unix/sysv/linux/generic/wordsize-32/preadv64.c: Likewise.
+ * sysdeps/unix/sysv/linux/mips/mips64/n64/preadv64.c: Likewise.
+ * sysdeps/unix/sysv/linux/wordsize-64/preadv.c: Likewise.
+ * sysdeps/unix/sysv/linux/wordsize-64/preadv64.: Likwise.
+ * sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list (preadv): Remove
+ syscall from auto-generation.
+ * sysdeps/unix/sysv/linux/preadv.c: Rewrite implementation.
+ [WORDSIZE == 64] (preadv64): Remove macro.
+ [!PREADV] (PREADV): Likewise.
+ [!PREADV] (PREADV_REPLACEMENT): Likewise.
+ [!PREADV] (PREAD): Likewise.
+ [!PREADV] (OFF_T): Likewise.
+ [!__ASSUME_PREADV] (PREADV_REPLACEMENT): Likewise.
+ (LO_HI_LONG): Remove macro.
+ [__WORDSIZE != 64 || __ASSUME_OFF_DIFF_OFF64] (preadv): Add function.
+ * sysdeps/unix/sysv/linux/preadv64.c: Rewrite implementation.
+ (PREADV): Remove macro.
+ (PREADV_REPLACEMENTE): Likewise.
+ (PREAD): Likewise.
+ (OFF_T): Likewise.
+ (preadv64): New function.
+ * nptl/tst-cancel4.c (tf_preadv): Add test.
+
2016-06-06 Joseph Myers <joseph@codesourcery.com>
[BZ #20212]
diff --git a/misc/Makefile b/misc/Makefile
index d7bbc85..658d4ba 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -88,6 +88,8 @@ CFLAGS-lsearch.c = $(uses-callbacks)
CFLAGS-pselect.c = -fexceptions
CFLAGS-readv.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-writev.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-preadv.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-preadv64.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-usleep.c = -fexceptions
CFLAGS-syslog.c = -fexceptions
CFLAGS-error.c = -fexceptions
diff --git a/nptl/tst-cancel4.c b/nptl/tst-cancel4.c
index 1478174..f3c4b0c 100644
--- a/nptl/tst-cancel4.c
+++ b/nptl/tst-cancel4.c
@@ -1554,6 +1554,50 @@ tf_pwrite (void *arg)
exit (1);
}
+static void *
+tf_preadv (void *arg)
+{
+ int fd;
+ int r;
+
+ if (arg == NULL)
+ /* XXX If somebody can provide a portable test case in which preadv
+ blocks we can enable this test to run in both rounds. */
+ abort ();
+
+ char fname[] = "/tmp/tst-cancel4-fd-XXXXXX";
+ tempfd = fd = mkstemp (fname);
+ if (fd == -1)
+ printf ("%s: mkstemp failed\n", __FUNCTION__);
+ unlink (fname);
+
+ r = pthread_barrier_wait (&b2);
+ if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ printf ("%s: barrier_wait failed\n", __FUNCTION__);
+ exit (1);
+ }
+
+ r = pthread_barrier_wait (&b2);
+ if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ printf ("%s: barrier_wait failed\n", __FUNCTION__);
+ exit (1);
+ }
+
+ ssize_t s;
+ pthread_cleanup_push (cl, NULL);
+
+ char buf[100];
+ struct iovec iov[1] = { [0] = { .iov_base = buf, .iov_len = sizeof (buf) } };
+ s = preadv (fd, iov, 1, 0);
+
+ pthread_cleanup_pop (0);
+
+ printf ("%s: preadv returns with %zd\n", __FUNCTION__, s);
+
+ exit (1);
+}
static void *
tf_fsync (void *arg)
@@ -2140,6 +2184,7 @@ static struct
ADD_TEST (recv, 2, 0),
ADD_TEST (recvfrom, 2, 0),
ADD_TEST (recvmsg, 2, 0),
+ ADD_TEST (preadv, 2, 1),
ADD_TEST (open, 2, 1),
ADD_TEST (close, 2, 1),
ADD_TEST (pread, 2, 1),
diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv.c
deleted file mode 100644
index ec30d4c..0000000
--- a/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/* 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.
- Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
- 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 <assert.h>
-#include <errno.h>
-#include <endian.h>
-#include <unistd.h>
-#include <sys/uio.h>
-
-#include <sysdep-cancel.h>
-#include <sys/syscall.h>
-
-ssize_t
-__libc_preadv (int fd, const struct iovec *vector, int count, off_t offset)
-{
- assert (sizeof (offset) == 4);
- return SYSCALL_CANCEL (preadv, fd,
- vector, count, __ALIGNMENT_ARG
- __LONG_LONG_PAIR (offset >> 31, offset));
-}
-strong_alias (__libc_preadv, __preadv)
-weak_alias (__libc_preadv, preadv)
diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv64.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv64.c
deleted file mode 100644
index fc008c6..0000000
--- a/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv64.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/* 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.
- Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
- 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 <endian.h>
-#include <unistd.h>
-#include <sys/uio.h>
-
-#include <sysdep-cancel.h>
-#include <sys/syscall.h>
-
-ssize_t
-__libc_preadv64 (int fd, const struct iovec *vector, int count, off64_t offset)
-{
- return SYSCALL_CANCEL (preadv, fd,
- vector, count, __ALIGNMENT_ARG
- __LONG_LONG_PAIR ((off_t) (offset >> 32),
- (off_t) (offset & 0xffffffff)));
-}
-
-strong_alias (__libc_preadv64, __preadv64)
-weak_alias (__libc_preadv64, preadv64)
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/preadv64.c b/sysdeps/unix/sysv/linux/mips/mips64/n64/preadv64.c
deleted file mode 100644
index fd9320c..0000000
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/preadv64.c
+++ /dev/null
@@ -1 +0,0 @@
-/* Empty since the preadv syscall is equivalent. */
diff --git a/sysdeps/unix/sysv/linux/preadv.c b/sysdeps/unix/sysv/linux/preadv.c
index ca8da33..f6958c3 100644
--- a/sysdeps/unix/sysv/linux/preadv.c
+++ b/sysdeps/unix/sysv/linux/preadv.c
@@ -15,67 +15,40 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <stddef.h>
-#include <sys/param.h>
-#include <stdint.h>
-#if __WORDSIZE == 64
-/* Hide the preadv64 declaration. */
-# define preadv64 __redirect_preadv64
-#endif
#include <sys/uio.h>
-
#include <sysdep-cancel.h>
-#include <sys/syscall.h>
-#include <kernel-features.h>
-
-
-#ifndef PREADV
-# define PREADV preadv
-# define PREADV_REPLACEMENT __atomic_preadv_replacement
-# define PREAD __pread
-# define OFF_T off_t
-#endif
-#define LO_HI_LONG(val) \
- (off_t) val, \
- (off_t) ((((uint64_t) (val)) >> (sizeof (long) * 4)) >> (sizeof (long) * 4))
+#if __WORDSIZE != 64 || defined (__ASSUME_OFF_DIFF_OFF64)
-#ifndef __ASSUME_PREADV
-static ssize_t PREADV_REPLACEMENT (int, const struct iovec *,
- int, OFF_T) internal_function;
-#endif
+# ifdef __ASSUME_PREADV
+# ifndef __NR_preadv
+# define __NR_preadv __NR_preadv64
+# endif
ssize_t
-PREADV (int fd, const struct iovec *vector, int count, OFF_T offset)
+preadv (int fd, const struct iovec *vector, int count, off_t offset)
{
-#ifdef __NR_preadv
- ssize_t result;
-
- result = SYSCALL_CANCEL (preadv, fd, vector, count, LO_HI_LONG (offset));
-
-# ifdef __ASSUME_PREADV
- return result;
-# endif
-#endif
-
-#ifndef __ASSUME_PREADV
-# ifdef __NR_preadv
+ return SYSCALL_CANCEL (preadv, fd, vector, count,
+ __ALIGNMENT_ARG SYSCALL_LL (offset));
+}
+# else
+static ssize_t __atomic_preadv_replacement (int, const struct iovec *,
+ int, off_t) internal_function;
+ssize_t
+preadv (int fd, const struct iovec *vector, int count, off_t offset)
+{
+# ifdef __NR_preadv
+ ssize_t result = SYSCALL_CANCEL (preadv, fd, vector, count,
+ __ALIGNMENT_ARG SYSCALL_LL (offset));
if (result >= 0 || errno != ENOSYS)
return result;
-# endif
-
- return PREADV_REPLACEMENT (fd, vector, count, offset);
-#endif
+# endif
+ return __atomic_preadv_replacement (fd, vector, count, offset);
}
-#if __WORDSIZE == 64
-# undef preadv64
-strong_alias (preadv, preadv64)
-#endif
-
-#ifndef __ASSUME_PREADV
-# undef PREADV
-# define PREADV static internal_function PREADV_REPLACEMENT
-# include <sysdeps/posix/preadv.c>
+# define PREADV static internal_function __atomic_preadv_replacement
+# define PREAD __pread
+# define OFF_T off_t
+# include <sysdeps/posix/preadv.c>
+# endif /* __ASSUME_PREADV */
#endif
diff --git a/sysdeps/unix/sysv/linux/preadv64.c b/sysdeps/unix/sysv/linux/preadv64.c
index 936ff14..18f5550 100644
--- a/sysdeps/unix/sysv/linux/preadv64.c
+++ b/sysdeps/unix/sysv/linux/preadv64.c
@@ -1,6 +1,55 @@
-#define PREADV preadv64
-#define PREADV_REPLACEMENT __atomic_preadv64_replacement
-#define PREAD __libc_pread64
-#define OFF_T off64_t
+/* Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-#include "preadv.c"
+ 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 <sys/uio.h>
+#include <sysdep-cancel.h>
+
+#ifdef __ASSUME_PREADV
+
+# ifndef __NR_preadv64
+# define __NR_preadv64 __NR_preadv
+# endif
+
+ssize_t
+preadv64 (int fd, const struct iovec *vector, int count, off64_t offset)
+{
+ return SYSCALL_CANCEL (preadv64, fd, vector, count,
+ __ALIGNMENT_ARG SYSCALL_LL64 (offset));
+}
+#else
+static ssize_t __atomic_preadv64_replacement (int, const struct iovec *,
+ int, off64_t) internal_function;
+ssize_t
+preadv64 (int fd, const struct iovec *vector, int count, off64_t offset)
+{
+#ifdef __NR_preadv64
+ ssize_t result = SYSCALL_CANCEL (preadv64, fd, vector, count,
+ __ALIGNMENT_ARG SYSCALL_LL64 (offset));
+ if (result >= 0 || errno != ENOSYS)
+ return result;
+#endif
+ return __atomic_preadv64_replacement (fd, vector, count, offset);
+}
+# define PREADV static internal_function __atomic_preadv64_replacement
+# define PREAD __pread64
+# define OFF_T off64_t
+# include <sysdeps/posix/preadv.c>
+#endif
+
+#if __WORDSIZE == 64 && !defined (__ASSUME_OFF_DIFF_OFF64)
+strong_alias (preadv64, preadv)
+#endif
diff --git a/sysdeps/unix/sysv/linux/wordsize-64/preadv.c b/sysdeps/unix/sysv/linux/wordsize-64/preadv.c
deleted file mode 100644
index e2924ac..0000000
--- a/sysdeps/unix/sysv/linux/wordsize-64/preadv.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/* 64-bit preadv.
- Copyright (C) 2012-2016 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 <stddef.h>
-#include <sys/param.h>
-/* Hide the preadv64 declaration. */
-#define preadv64 __redirect_preadv64
-#include <sys/uio.h>
-
-#include <sysdep-cancel.h>
-#include <sys/syscall.h>
-#include <kernel-features.h>
-
-#ifndef __ASSUME_PREADV
-static ssize_t __atomic_preadv_replacement (int, const struct iovec *,
- int, off_t) internal_function;
-#endif
-
-ssize_t
-preadv (int fd, const struct iovec *vector, int count, off_t offset)
-{
-#ifdef __NR_preadv
- ssize_t result;
-
- result = SYSCALL_CANCEL (preadv, fd, vector, count, offset);
-# ifdef __ASSUME_PREADV
- return result;
-# endif
-#endif
-
-#ifndef __ASSUME_PREADV
-# ifdef __NR_preadv
- if (result >= 0 || errno != ENOSYS)
- return result;
-# endif
-
- return __atomic_preadv_replacement (fd, vector, count, offset);
-#endif
-}
-#undef preadv64
-strong_alias (preadv, preadv64)
-
-#ifndef __ASSUME_PREADV
-# define PREADV static internal_function __atomic_preadv_replacement
-# define PREAD __pread
-# define OFF_T off_t
-# include <sysdeps/posix/preadv.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/wordsize-64/preadv64.c b/sysdeps/unix/sysv/linux/wordsize-64/preadv64.c
deleted file mode 100644
index fd9320c..0000000
--- a/sysdeps/unix/sysv/linux/wordsize-64/preadv64.c
+++ /dev/null
@@ -1 +0,0 @@
-/* Empty since the preadv syscall is equivalent. */
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list b/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list
index c98ac74..58cd7fc 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list
@@ -4,6 +4,5 @@ fallocate - fallocate Ci:iiii fallocate fallocate64
gettimeofday - gettimeofday:__vdso_gettimeofday@LINUX_2.6 i:pP __gettimeofday gettimeofday
personality EXTRA personality Ei:i __personality personality
posix_fadvise - fadvise64 Vi:iiii posix_fadvise posix_fadvise64
-preadv - preadv Ci:ipii preadv preadv64
pwritev - pwritev Ci:ipii pwritev pwritev64
time - time:__vdso_time@LINUX_2.6 Ei:P time
generated by cgit v1.1 at 2024-11-21 19:53:48 +0000