diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux')
-rw-r--r-- | sysdeps/unix/sysv/linux/ia64/system.c | 30 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/not-errno.h | 14 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/s390/system.c | 29 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/sparc/system.c | 29 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/spawni.c | 4 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/system.c | 76 |
6 files changed, 16 insertions, 166 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/system.c b/sysdeps/unix/sysv/linux/ia64/system.c deleted file mode 100644 index d09fefefe6..0000000000 --- a/sysdeps/unix/sysv/linux/ia64/system.c +++ /dev/null @@ -1,30 +0,0 @@ -/* Copyright (C) 2002-2018 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/>. */ - -/* We have to and actually can handle cancelable system(). The big - problem: we have to kill the child process if necessary. To do - this a cleanup handler has to be registered and is has to be able - to find the PID of the child. The main problem is to reliable have - the PID when needed. It is not necessary for the parent thread to - return. It might still be in the kernel when the cancellation - request comes. Therefore we have to use the clone() calls ability - to have the kernel write the PID into the user-level variable. */ -#define FORK() \ - INLINE_SYSCALL (clone2, 6, CLONE_PARENT_SETTID | SIGCHLD, NULL, 0, \ - &pid, NULL, NULL) - -#include <sysdeps/unix/sysv/linux/system.c> diff --git a/sysdeps/unix/sysv/linux/not-errno.h b/sysdeps/unix/sysv/linux/not-errno.h index 106ba5c72e..b2f72cfb3d 100644 --- a/sysdeps/unix/sysv/linux/not-errno.h +++ b/sysdeps/unix/sysv/linux/not-errno.h @@ -16,6 +16,9 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ +#include <sysdep.h> +#include <fcntl.h> + /* This function is used on maybe_enable_malloc_check (elf/dl-tunables.c) and to avoid having to build/use multiple versions if stack protection in enabled it is defined as inline. */ @@ -33,3 +36,14 @@ __access_noerrno (const char *pathname, int mode) return INTERNAL_SYSCALL_ERRNO (res, err); return 0; } + +static inline int +__kill_noerrno (pid_t pid, int sig) +{ + int res; + INTERNAL_SYSCALL_DECL (err); + res = INTERNAL_SYSCALL_CALL (kill, err, pid, sig); + if (INTERNAL_SYSCALL_ERROR_P (res, err)) + return INTERNAL_SYSCALL_ERRNO (res, err); + return 0; +} diff --git a/sysdeps/unix/sysv/linux/s390/system.c b/sysdeps/unix/sysv/linux/s390/system.c deleted file mode 100644 index d8ef461334..0000000000 --- a/sysdeps/unix/sysv/linux/s390/system.c +++ /dev/null @@ -1,29 +0,0 @@ -/* Copyright (C) 2003-2018 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/>. */ - -/* We have to and actually can handle cancelable system(). The big - problem: we have to kill the child process if necessary. To do - this a cleanup handler has to be registered and is has to be able - to find the PID of the child. The main problem is to reliable have - the PID when needed. It is not necessary for the parent thread to - return. It might still be in the kernel when the cancellation - request comes. Therefore we have to use the clone() calls ability - to have the kernel write the PID into the user-level variable. */ -#define FORK() \ - INLINE_SYSCALL (clone, 3, 0, CLONE_PARENT_SETTID | SIGCHLD, &pid) - -#include "../system.c" diff --git a/sysdeps/unix/sysv/linux/sparc/system.c b/sysdeps/unix/sysv/linux/sparc/system.c deleted file mode 100644 index 1f65c83399..0000000000 --- a/sysdeps/unix/sysv/linux/sparc/system.c +++ /dev/null @@ -1,29 +0,0 @@ -/* Copyright (C) 2003-2018 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/>. */ - -/* We have to and actually can handle cancelable system(). The big - problem: we have to kill the child process if necessary. To do - this a cleanup handler has to be registered and is has to be able - to find the PID of the child. The main problem is to reliable have - the PID when needed. It is not necessary for the parent thread to - return. It might still be in the kernel when the cancellation - request comes. Therefore we have to use the clone() calls ability - to have the kernel write the PID into the user-level variable. */ -#define FORK() \ - INLINE_CLONE_SYSCALL (CLONE_PARENT_SETTID | SIGCHLD, 0, &pid, NULL, NULL) - -#include "../system.c" diff --git a/sysdeps/unix/sysv/linux/spawni.c b/sysdeps/unix/sysv/linux/spawni.c index 9f3a137b5c..dbb6cdd5f0 100644 --- a/sysdeps/unix/sysv/linux/spawni.c +++ b/sysdeps/unix/sysv/linux/spawni.c @@ -138,11 +138,11 @@ __spawni_child (void *arguments) for (int sig = 1; sig < _NSIG; ++sig) { if ((attr->__flags & POSIX_SPAWN_SETSIGDEF) - && sigismember (&attr->__sd, sig)) + && __sigismember (&attr->__sd, sig)) { sa.sa_handler = SIG_DFL; } - else if (sigismember (&hset, sig)) + else if (__sigismember (&hset, sig)) { if (__is_internal_signal (sig)) sa.sa_handler = SIG_IGN; diff --git a/sysdeps/unix/sysv/linux/system.c b/sysdeps/unix/sysv/linux/system.c deleted file mode 100644 index 7cc68a1528..0000000000 --- a/sysdeps/unix/sysv/linux/system.c +++ /dev/null @@ -1,76 +0,0 @@ -/* Copyright (C) 2002-2018 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 <sched.h> -#include <signal.h> -#include <string.h> /* For the real memset prototype. */ -#include <sysdep.h> -#include <unistd.h> -#include <sys/wait.h> -#include <libc-lock.h> - -/* We have to and actually can handle cancelable system(). The big - problem: we have to kill the child process if necessary. To do - this a cleanup handler has to be registered and is has to be able - to find the PID of the child. The main problem is to reliable have - the PID when needed. It is not necessary for the parent thread to - return. It might still be in the kernel when the cancellation - request comes. Therefore we have to use the clone() calls ability - to have the kernel write the PID into the user-level variable. */ -#ifndef FORK -# define FORK() \ - INLINE_SYSCALL (clone, 3, CLONE_PARENT_SETTID | SIGCHLD, 0, &pid) -#endif - -#ifdef _LIBC_REENTRANT -static void cancel_handler (void *arg); - -# define CLEANUP_HANDLER \ - __libc_cleanup_region_start (1, cancel_handler, &pid) - -# define CLEANUP_RESET \ - __libc_cleanup_region_end (0) -#endif - - -/* Linux has waitpid(), so override the generic unix version. */ -#include <sysdeps/posix/system.c> - - -#ifdef _LIBC_REENTRANT -/* The cancellation handler. */ -static void -cancel_handler (void *arg) -{ - pid_t child = *(pid_t *) arg; - - INTERNAL_SYSCALL_DECL (err); - INTERNAL_SYSCALL (kill, err, 2, child, SIGKILL); - - TEMP_FAILURE_RETRY (__waitpid (child, NULL, 0)); - - DO_LOCK (); - - if (SUB_REF () == 0) - { - (void) __sigaction (SIGQUIT, &quit, (struct sigaction *) NULL); - (void) __sigaction (SIGINT, &intr, (struct sigaction *) NULL); - } - - DO_UNLOCK (); -} -#endif |