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>.

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)