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authorRoland McGrath <roland@gnu.org>2003-03-15 23:44:08 +0000
committerRoland McGrath <roland@gnu.org>2003-03-15 23:44:08 +0000
commit7eecc0c21a4ee25034fb6a0f81ca438668244361 (patch)
treecb2318e7cd13d38016c12bb756099703491d178d /sysdeps/unix/sysv/linux/i386
parent45e4762c2c7d04cd51213735c2b440c94cdcf28a (diff)
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* sysdeps/unix/sysv/linux/i386/system.c: Moved to ...
	* sysdeps/unix/sysv/linux/system.c: ... here.
	(FORK): Don't #define if already #define'd.
	* sysdeps/unix/sysv/linux/s390/system.c: File removed.
	* sysdeps/unix/sysv/linux/kernel-features.h [__powerpc__]:
	(__ASSUME_CLONE_THREAD_FLAGS): Define for kernel >= 2.5.64.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386')
-rw-r--r--sysdeps/unix/sysv/linux/i386/system.c73
1 files changed, 0 insertions, 73 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/system.c b/sysdeps/unix/sysv/linux/i386/system.c
deleted file mode 100644
index 1e3035d7f3..0000000000
--- a/sysdeps/unix/sysv/linux/i386/system.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/* Copyright (C) 2002, 2003 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <sched.h>
-#include <signal.h>
-#include <sysdep.h>
-#include <unistd.h>
-#include <sys/wait.h>
-#include <bits/libc-lock.h>
-#include <kernel-features.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.  */
-#ifdef __ASSUME_CLONE_THREAD_FLAGS
-# define FORK() \
-  INLINE_SYSCALL (clone, 3, CLONE_PARENT_SETTID | SIGCHLD, 0, &pid)
-#endif
-
-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)
-
-
-/* Linux has waitpid(), so override the generic unix version.  */
-#include <sysdeps/posix/system.c>
-
-
-/* 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 ();
-}