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2003-04-10  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/fork.c (__libc_fork): Reset CPU clocks
	in child.
This commit is contained in:
Ulrich Drepper
2003-04-10 16:46:27 +00:00
parent b2041097f6
commit 88ff4759ac
2 changed files with 19 additions and 2 deletions
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5
nptl/ChangeLog
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@ -1,3 +1,8 @@
2003-04-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/fork.c (__libc_fork): Reset CPU clocks
in child.
2003-04-09 Ulrich Drepper <drepper@redhat.com> 2003-04-09 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-detach1. * Makefile (tests): Add tst-detach1.

16
nptl/sysdeps/unix/sysv/linux/fork.c
View File

@ -17,6 +17,7 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */ 02111-1307 USA. */
#include <assert.h>
#include <stdlib.h> #include <stdlib.h>
#include <unistd.h> #include <unistd.h>
#include <sys/types.h> #include <sys/types.h>
@ -24,8 +25,9 @@
#include <libio/libioP.h> #include <libio/libioP.h>
#include <tls.h> #include <tls.h>
#include "fork.h" #include "fork.h"
#include <hp-timing.h>
#include <ldsodefs.h>
#include <bits/stdio-lock.h> #include <bits/stdio-lock.h>
#include <assert.h>
unsigned long int *__fork_generation_pointer; unsigned long int *__fork_generation_pointer;
@ -83,11 +85,21 @@ __libc_fork (void)
if (pid == 0) if (pid == 0)
{ {
assert (THREAD_GETMEM (THREAD_SELF, tid) != ppid); struct pthread *self = THREAD_SELF;
assert (THREAD_GETMEM (self, tid) != ppid);
if (__fork_generation_pointer != NULL) if (__fork_generation_pointer != NULL)
*__fork_generation_pointer += 4; *__fork_generation_pointer += 4;
#if HP_TIMING_AVAIL
/* The CPU clock of the thread and process have to be set to zero. */
hp_timing_t now;
HP_TIMING_NOW (now);
THREAD_SETMEM (self, cpuclock_offset, now);
GL(dl_cpuclock_offset) = now;
#endif
/* Reset the file list. These are recursive mutexes. */ /* Reset the file list. These are recursive mutexes. */
fresetlockfiles (); fresetlockfiles ();