Updated to fedora-glibc-20070825T1839

6 files changed, 138 insertions, 4 deletions

diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 4edb7af9ab..3fe3676ea5 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,21 @@
+2007-08-21  Ulrich Drepper  <drepper@redhat.com>
+
+	[BZ #4938]
+	* allocatestack.c (__reclaim_stacks): Clear the TSD in the
+	reclaimed stack if necessary.
+	* Makefile (tests): Add tst-tsd6.
+	* tst-tsd6.c: New file.
+
+2007-08-21  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/unix/sysv/linux/alpha/lowlevellock.h (lll_robust_dead):
+	Add private argument.
+
+2007-08-20  Ulrich Drepper  <drepper@redhat.com>
+
+	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
+	(__pthread_cond_timedwait): Use clock_gettime from VDSO if possible.
+
 2007-08-16  Jakub Jelinek  <jakub@redhat.com>
 
 	* sysdeps/unix/sysv/linux/alpha/lowlevellock.h
diff --git a/nptl/Makefile b/nptl/Makefile
index 4d1a9bcfea..5ed2c21145 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -227,7 +227,7 @@ tests = tst-typesizes \
 	tst-join1 tst-join2 tst-join3 tst-join4 tst-join5 tst-join6 \
 	tst-detach1 \
 	tst-eintr1 tst-eintr2 tst-eintr3 tst-eintr4 tst-eintr5 \
-	tst-tsd1 tst-tsd2 tst-tsd3 tst-tsd4 tst-tsd5 \
+	tst-tsd1 tst-tsd2 tst-tsd3 tst-tsd4 tst-tsd5 tst-tsd6 \
 	tst-tls1 tst-tls2 \
 	tst-fork1 tst-fork2 tst-fork3 tst-fork4 \
 	tst-atfork1 \
diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c
index 02a84f4d9b..c894e96a28 100644
--- a/nptl/allocatestack.c
+++ b/nptl/allocatestack.c
@@ -794,6 +794,26 @@ __reclaim_stacks (void)
 
 	  /* Account for the size of the stack.  */
 	  stack_cache_actsize += curp->stackblock_size;
+
+	  if (curp->specific_used)
+	    {
+	      /* Clear the thread-specific data.  */
+	      memset (curp->specific_1stblock, '\0',
+		      sizeof (curp->specific_1stblock));
+
+	      curp->specific_used = false;
+
+	      for (size_t cnt = 1; cnt < PTHREAD_KEY_1STLEVEL_SIZE; ++cnt)
+		if (curp->specific[cnt] != NULL)
+		  {
+		    memset (curp->specific[cnt], '\0',
+			    sizeof (curp->specific_1stblock));
+
+		    /* We have allocated the block which we do not
+		       free here so re-set the bit.  */
+		    curp->specific_used = true;
+		  }
+	    }
 	}
     }
 
diff --git a/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h
index 9fa321cb3f..93188234cb 100644
--- a/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h
@@ -94,12 +94,12 @@
     INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret : __ret;		      \
   })
 
-#define lll_robust_dead(futexv) \
+#define lll_robust_dead(futexv, private) \
   do									      \
     {									      \
       int *__futexp = &(futexv);					      \
       atomic_or (__futexp, FUTEX_OWNER_DIED);				      \
-      lll_futex_wake (__futexp, 1, LLL_SHARED);				      \
+      lll_futex_wake (__futexp, 1, private);				      \
     }									      \
   while (0)
 
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
index a5de670866..d730a7e12d 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
@@ -134,8 +134,15 @@ __pthread_cond_timedwait:
 	/* Only clocks 0 and 1 are allowed so far.  Both are handled in the
 	   kernel.  */
 	leaq	24(%rsp), %rsi
-	movl	$__NR_clock_gettime, %eax
+	movq	__vdso_clock_gettime@GOTPCREL(%rip), %rax
+	movq	(%rax), %rax
+	PTR_DEMANGLE (%rax)
+	jz	26f
+	call	*%rax
+	jmp	27f
+26:	movl	$__NR_clock_gettime, %eax
 	syscall
+27:
 # ifndef __ASSUME_POSIX_TIMERS
 	cmpq	$-ENOSYS, %rax
 	je	19f
diff --git a/nptl/tst-tsd6.c b/nptl/tst-tsd6.c
new file mode 100644
index 0000000000..debb1dd367
--- /dev/null
+++ b/nptl/tst-tsd6.c
@@ -0,0 +1,89 @@
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+#define NKEYS 100
+static pthread_key_t keys[NKEYS];
+static pthread_barrier_t b;
+
+
+static void *
+tf (void *arg)
+{
+  void *res = NULL;
+  for (int i = 0; i < NKEYS; ++i)
+    {
+      void *p = pthread_getspecific (keys[i]);
+      pthread_setspecific (keys[i], (void *) 7);
+      if (p != NULL)
+	res = p;
+    }
+  if (arg != NULL)
+    {
+      pthread_barrier_wait (arg);
+      pthread_barrier_wait (arg);
+    }
+  return res;
+}
+
+
+static int
+do_test (void)
+{
+  pthread_barrier_init (&b, NULL, 2);
+
+  for (int i = 0; i < NKEYS; ++i)
+    if (pthread_key_create (&keys[i], NULL) != 0)
+      {
+	puts ("cannot create keys");
+	return 1;
+      }
+
+  pthread_t th;
+  if (pthread_create (&th, NULL, tf, &b) != 0)
+    {
+      puts ("cannot create thread in parent");
+      return 1;
+    }
+
+  pthread_barrier_wait (&b);
+
+  pid_t pid = fork ();
+  if (pid == 0)
+    {
+      if (pthread_create (&th, NULL, tf, NULL) != 0)
+	{
+	  puts ("cannot create thread in child");
+	  exit (1);
+	}
+
+      void *res;
+      pthread_join (th, &res);
+
+      exit (res != NULL);
+    }
+  else if (pid == -1)
+    {
+      puts ("cannot create child process");
+      return 1;
+    }
+
+  int s;
+  if (TEMP_FAILURE_RETRY (waitpid (pid, &s, 0)) != pid)
+    {
+      puts ("failing to wait for child process");
+      return 1;
+    }
+
+  pthread_barrier_wait (&b);
+  pthread_join (th, NULL);
+
+  return !WIFEXITED (s) ? 2 : WEXITSTATUS (s);
+}
+
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"