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authorUlrich Drepper <drepper@redhat.com>2003-02-21 10:00:33 +0000
committerUlrich Drepper <drepper@redhat.com>2003-02-21 10:00:33 +0000
commit8c2e9a29b1fbda33e57b2d33c7bfcb0de666b1fb (patch)
treeaa445512e4f44e9d00ee5624417f7ee5417c4b75 /nptl
parent8b1a8bb409508906737ec41ed79bb88398cb5dba (diff)
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Update.
* pthreadP.h: Define INVALID_TD_P and INVALID_NOT_TERMINATED_TD_P. * pthread_cancel.c: Use INVALID_TD_P. * pthread_detach.c: Likewise. * pthread_getschedparam.c: Likewise. * pthread_setschedparam.c: Likewise. * sysdeps/pthread/pthread_getcpuclockid.c: Likewise. * sysdeps/unix/sysv/linux/pthread_kill.c: Likewise. * pthread_join.c: Use INVALID_NOT_TERMINATED_TD_P. * pthread_timedjoin.c: Likewise. * tst-basic7.c: Include <signal.h>.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/ChangeLog12
-rw-r--r--nptl/pthreadP.h7
-rw-r--r--nptl/pthread_cancel.c8
-rw-r--r--nptl/pthread_detach.c8
-rw-r--r--nptl/pthread_getschedparam.c24
-rw-r--r--nptl/pthread_join.c2
-rw-r--r--nptl/pthread_setschedparam.c26
-rw-r--r--nptl/pthread_timedjoin.c3
-rw-r--r--nptl/sysdeps/pthread/pthread_getcpuclockid.c21
-rw-r--r--nptl/sysdeps/unix/sysv/linux/pthread_kill.c10
10 files changed, 85 insertions, 36 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 2c5c338..05bab0b 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,5 +1,17 @@
2003-02-21 Ulrich Drepper <drepper@redhat.com>
+ * pthreadP.h: Define INVALID_TD_P and INVALID_NOT_TERMINATED_TD_P.
+ * pthread_cancel.c: Use INVALID_TD_P.
+ * pthread_detach.c: Likewise.
+ * pthread_getschedparam.c: Likewise.
+ * pthread_setschedparam.c: Likewise.
+ * sysdeps/pthread/pthread_getcpuclockid.c: Likewise.
+ * sysdeps/unix/sysv/linux/pthread_kill.c: Likewise.
+ * pthread_join.c: Use INVALID_NOT_TERMINATED_TD_P.
+ * pthread_timedjoin.c: Likewise.
+
+ * tst-basic7.c: Include <signal.h>.
+
* pthread_join.c (pthread_join): Limited checking for invalid
descriptors.
* pthread_timedjoin.c (pthread_timedjoin_np): Likewise.
diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h
index 11f7ede..e88b959 100644
--- a/nptl/pthreadP.h
+++ b/nptl/pthreadP.h
@@ -70,8 +70,15 @@ extern int __pthread_debug attribute_hidden;
/** For now disable debugging support. */
#if 0
# define DEBUGGING_P __builtin_expect (__pthread_debug, 0)
+# define INVALID_TD_P(pd) (DEBUGGING_P && __find_in_stack_list (pd) == NULL)
+# define INVALID_NOT_TERMINATED_TD_P(pd) INVALID_TD_P (pd)
#else
# define DEBUGGING_P 0
+/* Simplified test. This will not catch all invalid descriptors but
+ is better than nothing. And if the test triggers the thread
+ descriptor is guaranteed to be invalid. */
+# define INVALID_TD_P(pd) __builtin_expect ((pd)->tid <= 0, 0)
+# define INVALID_NOT_TERMINATED_TD_P(pd) __builtin_expect ((pd)->tid < 0, 0)
#endif
diff --git a/nptl/pthread_cancel.c b/nptl/pthread_cancel.c
index 153cb19..805e74f 100644
--- a/nptl/pthread_cancel.c
+++ b/nptl/pthread_cancel.c
@@ -17,6 +17,7 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#include <errno.h>
#include <signal.h>
#include "pthreadP.h"
#include "atomic.h"
@@ -27,8 +28,13 @@ pthread_cancel (th)
pthread_t th;
{
volatile struct pthread *pd = (volatile struct pthread *) th;
- int result = 0;
+ /* Make sure the descriptor is valid. */
+ if (INVALID_TD_P (pd))
+ /* Not a valid thread handle. */
+ return ESRCH;
+
+ int result = 0;
while (1)
{
int oldval = pd->cancelhandling;
diff --git a/nptl/pthread_detach.c b/nptl/pthread_detach.c
index 2ba9f49..ff58e3b 100644
--- a/nptl/pthread_detach.c
+++ b/nptl/pthread_detach.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -27,6 +27,12 @@ pthread_detach (th)
pthread_t th;
{
struct pthread *pd = (struct pthread *) th;
+
+ /* Make sure the descriptor is valid. */
+ if (INVALID_TD_P (pd))
+ /* Not a valid thread handle. */
+ return ESRCH;
+
int result = 0;
/* Mark the thread as detached. */
diff --git a/nptl/pthread_getschedparam.c b/nptl/pthread_getschedparam.c
index 72b366d..d9d6cb4 100644
--- a/nptl/pthread_getschedparam.c
+++ b/nptl/pthread_getschedparam.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -17,33 +17,39 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#include <errno.h>
#include <string.h>
#include "pthreadP.h"
#include <lowlevellock.h>
int
-__pthread_getschedparam (thread_id, policy, param)
- pthread_t thread_id;
+__pthread_getschedparam (threadid, policy, param)
+ pthread_t threadid;
int *policy;
struct sched_param *param;
{
- struct pthread *thread = (struct pthread *) thread_id;
+ struct pthread *pd = (struct pthread *) threadid;
+
+ /* Make sure the descriptor is valid. */
+ if (INVALID_TD_P (pd))
+ /* Not a valid thread handle. */
+ return ESRCH;
/* We have to handle cancellation in the following code since we are
locking another threads desriptor. */
- pthread_cleanup_push ((void (*) (void *)) lll_unlock_wake_cb, &thread->lock);
+ pthread_cleanup_push ((void (*) (void *)) lll_unlock_wake_cb, &pd->lock);
- lll_lock (thread->lock);
+ lll_lock (pd->lock);
/* The library is responsible for maintaining the values at all
times. If the user uses a interface other than
pthread_setschedparam to modify the scheduler setting it is not
the library's problem. */
- *policy = thread->schedpolicy;
- memcpy (param, &thread->schedparam, sizeof (struct sched_param));
+ *policy = pd->schedpolicy;
+ memcpy (param, &pd->schedparam, sizeof (struct sched_param));
- lll_unlock (thread->lock);
+ lll_unlock (pd->lock);
pthread_cleanup_pop (0);
diff --git a/nptl/pthread_join.c b/nptl/pthread_join.c
index 84f993c..5a0ec95 100644
--- a/nptl/pthread_join.c
+++ b/nptl/pthread_join.c
@@ -40,7 +40,7 @@ pthread_join (threadid, thread_return)
struct pthread *pd = (struct pthread *) threadid;
/* Make sure the descriptor is valid. */
- if ((DEBUGGING_P && __find_in_stack_list (pd) == NULL) || pd->tid <= 0)
+ if (INVALID_NOT_TERMINATED_TD_P (pd))
/* Not a valid thread handle. */
return ESRCH;
diff --git a/nptl/pthread_setschedparam.c b/nptl/pthread_setschedparam.c
index cdba80c..3084836 100644
--- a/nptl/pthread_setschedparam.c
+++ b/nptl/pthread_setschedparam.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -25,33 +25,39 @@
int
-__pthread_setschedparam (thread_id, policy, param)
- pthread_t thread_id;
+__pthread_setschedparam (threadid, policy, param)
+ pthread_t threadid;
int policy;
const struct sched_param *param;
{
- struct pthread *thread = (struct pthread *) thread_id;
+ struct pthread *pd = (struct pthread *) threadid;
+
+ /* Make sure the descriptor is valid. */
+ if (INVALID_TD_P (pd))
+ /* Not a valid thread handle. */
+ return ESRCH;
+
int result = 0;
/* We have to handle cancellation in the following code since we are
locking another threads desriptor. */
- pthread_cleanup_push ((void (*) (void *)) lll_unlock_wake_cb, &thread->lock);
+ pthread_cleanup_push ((void (*) (void *)) lll_unlock_wake_cb, &pd->lock);
- lll_lock (thread->lock);
+ lll_lock (pd->lock);
/* Try to set the scheduler information. */
- if (__builtin_expect (__sched_setscheduler (thread->tid, policy,
+ if (__builtin_expect (__sched_setscheduler (pd->tid, policy,
param) == -1, 0))
result = errno;
else
{
/* We succeeded changing the kernel information. Reflect this
change in the thread descriptor. */
- thread->schedpolicy = policy;
- memcpy (&thread->schedparam, param, sizeof (struct sched_param));
+ pd->schedpolicy = policy;
+ memcpy (&pd->schedparam, param, sizeof (struct sched_param));
}
- lll_unlock (thread->lock);
+ lll_unlock (pd->lock);
pthread_cleanup_pop (0);
diff --git a/nptl/pthread_timedjoin.c b/nptl/pthread_timedjoin.c
index 0883f94..c83c0ef 100644
--- a/nptl/pthread_timedjoin.c
+++ b/nptl/pthread_timedjoin.c
@@ -19,7 +19,6 @@
#include <errno.h>
#include <stdlib.h>
-
#include "atomic.h"
#include "pthreadP.h"
@@ -42,7 +41,7 @@ pthread_timedjoin_np (threadid, thread_return, abstime)
int result;
/* Make sure the descriptor is valid. */
- if ((DEBUGGING_P && __find_in_stack_list (pd) == NULL) || pd->tid <= 0)
+ if (INVALID_NOT_TERMINATED_TD_P (pd))
/* Not a valid thread handle. */
return ESRCH;
diff --git a/nptl/sysdeps/pthread/pthread_getcpuclockid.c b/nptl/sysdeps/pthread/pthread_getcpuclockid.c
index 62761f9..6386dc4 100644
--- a/nptl/sysdeps/pthread/pthread_getcpuclockid.c
+++ b/nptl/sysdeps/pthread/pthread_getcpuclockid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001, 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
@@ -17,23 +17,30 @@
Boston, MA 02111-1307, USA. */
#include <errno.h>
-#include <pthread.h>
+#include <pthreadP.h>
#include <sys/time.h>
#include <tls.h>
int
-pthread_getcpuclockid (thread_id, clock_id)
- pthread_t thread_id;
- clockid_t *clock_id;
+pthread_getcpuclockid (threadid, clockid)
+ pthread_t threadid;
+ clockid_t *clockid;
{
+ struct pthread *pd = (struct pthread *) threadid;
+
+ /* Make sure the descriptor is valid. */
+ if (INVALID_TD_P (pd))
+ /* Not a valid thread handle. */
+ return ESRCH;
+
/* We don't allow any process ID but our own. */
- if ((struct pthread *) thread_id != THREAD_SELF)
+ if (pd != THREAD_SELF)
return EPERM;
#ifdef CLOCK_THREAD_CPUTIME_ID
/* Store the number. */
- *clock_id = CLOCK_THREAD_CPUTIME_ID;
+ *clockid = CLOCK_THREAD_CPUTIME_ID;
return 0;
#else
diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_kill.c b/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
index ca6dfd8..2caa728 100644
--- a/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
+++ b/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
@@ -31,14 +31,14 @@ __pthread_kill (threadid, signo)
{
struct pthread *pd = (struct pthread *) threadid;
+ /* Make sure the descriptor is valid. */
+ if (INVALID_TD_P (pd))
+ /* Not a valid thread handle. */
+ return ESRCH;
+
/* We have a special syscall to do the work. */
INTERNAL_SYSCALL_DECL (err);
- /* The kernel returns EINVAL for PIDs <= 0. This is not nice since
- the user would expect ESRCH. Correct it here. */
- if (pd->tid <= 0)
- return ESRCH;
-
int val = INTERNAL_SYSCALL (tkill, err, 2, pd->tid, signo);
return (INTERNAL_SYSCALL_ERROR_P (val, err)