diff options
| -rw-r--r-- | ChangeLog | 29 | ||||
| -rw-r--r-- | misc/Makefile | 2 | ||||
| -rw-r--r-- | nptl/tst-cancel4.c | 45 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/generic/wordsize-32/preadv.c | 38 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/generic/wordsize-32/preadv64.c | 38 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/mips64/n64/preadv64.c | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/preadv.c | 77 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/preadv64.c | 59 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/wordsize-64/preadv.c | 64 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/wordsize-64/preadv64.c | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list | 1 |
11 files changed, 155 insertions, 200 deletions
diff --git a/ChangeLog b/ChangeLog index 9930b5e5c2..b54173777d 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 d7bbc85f18..658d4baeed 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 1478174028..f3c4b0c2be 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 ec30d4c0b7..0000000000 --- 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 fc008c67c5..0000000000 --- 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 fd9320cfc7..0000000000 --- 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 ca8da33119..f6958c30ca 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 936ff1426c..18f55508ad 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 e2924acbb9..0000000000 --- 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 fd9320cfc7..0000000000 --- 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 c98ac74d46..58cd7fcfbb 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 |