diff options
Diffstat (limited to 'sysdeps/unix')
| -rw-r--r-- | sysdeps/unix/sysv/linux/ia64/has_cpuclock.c | 51 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/ia64/sysconf.c | 30 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sysconf.c | 64 |
3 files changed, 15 insertions, 130 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/has_cpuclock.c b/sysdeps/unix/sysv/linux/ia64/has_cpuclock.c deleted file mode 100644 index b3afb37f8b..0000000000 --- a/sysdeps/unix/sysv/linux/ia64/has_cpuclock.c +++ /dev/null @@ -1,51 +0,0 @@ -/* Copyright (C) 2000-2019 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 <fcntl.h> -#include <unistd.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <not-cancel.h> - -static int itc_usable; - -static int -has_cpuclock (void) -{ - if (__builtin_expect (itc_usable == 0, 0)) - { - int newval = 1; - int fd = __open_nocancel ("/proc/sal/itc_drift", O_RDONLY); - if (__builtin_expect (fd != -1, 1)) - { - char buf[16]; - /* We expect the file to contain a single digit followed by - a newline. If the format changes we better not rely on - the file content. */ - if (__read_nocancel (fd, buf, sizeof buf) != 2 - || buf[0] != '0' || buf[1] != '\n') - newval = -1; - - __close_nocancel_nostatus (fd); - } - - itc_usable = newval; - } - - return itc_usable; -} diff --git a/sysdeps/unix/sysv/linux/ia64/sysconf.c b/sysdeps/unix/sysv/linux/ia64/sysconf.c deleted file mode 100644 index ef75322f1f..0000000000 --- a/sysdeps/unix/sysv/linux/ia64/sysconf.c +++ /dev/null @@ -1,30 +0,0 @@ -/* Get file-specific information about a file. Linux/ia64 version. - Copyright (C) 2003-2019 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 <assert.h> -#include <stdbool.h> -#include <stdlib.h> -#include <unistd.h> - - -#include "has_cpuclock.c" -#define HAS_CPUCLOCK(name) (has_cpuclock () ? _POSIX_VERSION : -1) - - -/* Now the generic Linux version. */ -#include <sysdeps/unix/sysv/linux/sysconf.c> diff --git a/sysdeps/unix/sysv/linux/sysconf.c b/sysdeps/unix/sysv/linux/sysconf.c index 4b297ba35f..2492d7a291 100644 --- a/sysdeps/unix/sysv/linux/sysconf.c +++ b/sysdeps/unix/sysv/linux/sysconf.c @@ -35,34 +35,6 @@ static long int posix_sysconf (int name); -#ifndef HAS_CPUCLOCK -static long int -has_cpuclock (int name) -{ -# if defined __NR_clock_getres || HP_TIMING_AVAIL - /* If we have HP_TIMING, we will fall back on that if the system - call does not work, so we support it either way. */ -# if !HP_TIMING_AVAIL - /* Check using the clock_getres system call. */ - struct timespec ts; - INTERNAL_SYSCALL_DECL (err); - int r = INTERNAL_SYSCALL (clock_getres, err, 2, - (name == _SC_CPUTIME - ? CLOCK_PROCESS_CPUTIME_ID - : CLOCK_THREAD_CPUTIME_ID), - &ts); - if (INTERNAL_SYSCALL_ERROR_P (r, err)) - return -1; -# endif - return _POSIX_VERSION; -# else - return -1; -# endif -} -# define HAS_CPUCLOCK(name) has_cpuclock (name) -#endif - - /* Get the value of the system variable NAME. */ long int __sysconf (int name) @@ -71,29 +43,20 @@ __sysconf (int name) switch (name) { - struct rlimit rlimit; -#ifdef __NR_clock_getres case _SC_MONOTONIC_CLOCK: - /* Check using the clock_getres system call. */ - { - struct timespec ts; - INTERNAL_SYSCALL_DECL (err); - int r; - r = INTERNAL_SYSCALL (clock_getres, err, 2, CLOCK_MONOTONIC, &ts); - return INTERNAL_SYSCALL_ERROR_P (r, err) ? -1 : _POSIX_VERSION; - } -#endif - case _SC_CPUTIME: case _SC_THREAD_CPUTIME: - return HAS_CPUCLOCK (name); + return _POSIX_VERSION; case _SC_ARG_MAX: - /* Use getrlimit to get the stack limit. */ - if (__getrlimit (RLIMIT_STACK, &rlimit) == 0) - return MAX (legacy_ARG_MAX, rlimit.rlim_cur / 4); + { + struct rlimit rlimit; + /* Use getrlimit to get the stack limit. */ + if (__getrlimit (RLIMIT_STACK, &rlimit) == 0) + return MAX (legacy_ARG_MAX, rlimit.rlim_cur / 4); - return legacy_ARG_MAX; + return legacy_ARG_MAX; + } case _SC_NGROUPS_MAX: /* Try to read the information from the /proc/sys/kernel/ngroups_max @@ -102,11 +65,14 @@ __sysconf (int name) break; case _SC_SIGQUEUE_MAX: - if (__getrlimit (RLIMIT_SIGPENDING, &rlimit) == 0) - return rlimit.rlim_cur; + { + struct rlimit rlimit; + if (__getrlimit (RLIMIT_SIGPENDING, &rlimit) == 0) + return rlimit.rlim_cur; - /* The /proc/sys/kernel/rtsig-max file contains the answer. */ - procfname = "/proc/sys/kernel/rtsig-max"; + /* The /proc/sys/kernel/rtsig-max file contains the answer. */ + procfname = "/proc/sys/kernel/rtsig-max"; + } break; default: |