Update.

2003-06-17  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/sleep.c: Use CANCELLATION_P if defined before
	returning because seconds==0.

ChangeLog

@@ -1,3 +1,8 @@
+2003-06-17  Ulrich Drepper  <drepper@redhat.com>
+
+	* sysdeps/unix/sysv/linux/sleep.c: Use CANCELLATION_P if defined before
+	returning because seconds==0.
+
 2003-06-16  Ulrich Drepper  <drepper@redhat.com>
 
 	* sysdeps/unix/sysv/linux/i386/socket.S: Add unwind information.

nptl/ChangeLog

@@ -1,3 +1,28 @@
+2003-06-16  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/pthread/createthread.c (create_thread): Set
+	header.multiple_threads unconditionally.
+	* allocatestack.c (allocate_stack): Likewise.
+	* descr.h (struct pthread): Add header.multiple_threads
+	unconditionally.
+	* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h (CENABLE, CDISABLE):
+	Define for librt.  #error if neither libpthread, libc nor librt.
+	* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (CENABLE, CDISABLE):
+	Likewise.
+	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h (CENABLE,
+	CDISABLE): Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h (CENABLE,
+	CDISABLE): Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h (CENABLE,
+	CDISABLE): Likewise.
+	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (CENABLE,
+	CDISABLE): Likewise.  Access header.multiple_threads outside of
+	libc and libpthread.
+	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h (CENABLE, CDISABLE):
+	Likewise.
+	* sysdeps/x86_64/tls.h (tcbhead_t): Add multiple_threads.
+	* sysdeps/x86_64/tcb-offsets.sym (MULTIPLE_THREADS_OFFSET): Define.
+
 2003-06-17  Ulrich Drepper  <drepper@redhat.com>
 
 	* tst-cancel4.c: Add tests for the socket and signal functions, pause.

nptl/allocatestack.c

@@ -321,10 +321,9 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
 	 stack cache nor will the memory (except the TLS memory) be freed.  */
       pd->user_stack = true;
 
-#ifdef TLS_MULTIPLE_THREADS_IN_TCB
       /* This is at least the second thread.  */
       pd->header.multiple_threads = 1;
-#else
+#ifndef TLS_MULTIPLE_THREADS_IN_TCB
       __pthread_multiple_threads = *__libc_multiple_threads_ptr = 1;
 #endif
 
@@ -454,10 +453,9 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
 	  pd->lock = LLL_LOCK_INITIALIZER;
 #endif
 
-#ifdef TLS_MULTIPLE_THREADS_IN_TCB
 	  /* This is at least the second thread.  */
 	  pd->header.multiple_threads = 1;
-#else
+#ifndef TLS_MULTIPLE_THREADS_IN_TCB
 	  __pthread_multiple_threads = *__libc_multiple_threads_ptr = 1;
 #endif
 

nptl/descr.h

@@ -99,7 +99,7 @@ struct pthread
 #if !TLS_DTV_AT_TP
     /* This overlaps the TCB as used for TLS without threads (see tls.h).  */
     tcbhead_t header;
-#elif TLS_MULTIPLE_THREADS_IN_TCB
+#else
     struct
     {
       int multiple_threads;

nptl/sysdeps/pthread/createthread.c

@@ -87,9 +87,7 @@ create_thread (struct pthread *pd, STACK_VARIABLES_PARMS)
 	  /* We now have for sure more than one thread.  The main
 	     thread might not yet have the flag set.  No need to set
 	     the global variable again if this is what we use.  */
-#ifdef TLS_MULTIPLE_THREADS_IN_TCB
 	  THREAD_SETMEM (THREAD_SELF, header.multiple_threads, 1);
-#endif
 
 	  /* Now fill in the information about the new thread in
 	     the newly created thread's data structure.  We cannot let
@@ -160,9 +158,7 @@ create_thread (struct pthread *pd, STACK_VARIABLES_PARMS)
   /* We now have for sure more than one thread.  The main thread might
      not yet have the flag set.  No need to set the global variable
      again if this is what we use.  */
-#ifdef TLS_MULTIPLE_THREADS_IN_TCB
   THREAD_SETMEM (THREAD_SELF, header.multiple_threads, 1);
-#endif
 
   return 0;
 }

nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h

@@ -342,9 +342,14 @@
 # ifdef IS_IN_libpthread
 #  define CENABLE	call __pthread_enable_asynccancel;
 #  define CDISABLE	call __pthread_disable_asynccancel
-# else
+# elif !defined NOT_IN_libc
 #  define CENABLE	call __libc_enable_asynccancel;
 #  define CDISABLE	call __libc_disable_asynccancel
+# elif defined IS_IN_librt
+#  define CENABLE	call __librt_enable_asynccancel;
+#  define CDISABLE	call __librt_disable_asynccancel
+# else
+#  error Unsupported library
 # endif
 # define POPSTATE_0 \
  pushl %eax; L(PUSHSTATE): movl %ecx, %eax; CDISABLE; popl %eax; L(POPSTATE):

nptl/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h

@@ -85,9 +85,14 @@ __syscall_error_##args:							      \
 # ifdef IS_IN_libpthread
 #  define CENABLE	br.call.sptk.many b0 = __pthread_enable_asynccancel
 #  define CDISABLE	br.call.sptk.many b0 = __pthread_disable_asynccancel
-# else
+# elif !defined NOT_IN_libc
 #  define CENABLE	br.call.sptk.many b0 = __libc_enable_asynccancel
 #  define CDISABLE	br.call.sptk.many b0 = __libc_disable_asynccancel
+# elif defined IS_IN_librt
+#  define CENABLE	br.call.sptk.many b0 = __librt_enable_asynccancel
+#  define CDISABLE	br.call.sptk.many b0 = __librt_disable_asynccancel
+# else
+#  error Unsupported library
 # endif
 
 #define COPY_ARGS_0	/* Nothing */

nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h

@@ -79,9 +79,14 @@
 # ifdef IS_IN_libpthread
 #  define CENABLE	bl JUMPTARGET(__pthread_enable_asynccancel)
 #  define CDISABLE	bl JUMPTARGET(__pthread_disable_asynccancel)
-# else
+# elif !defined NOT_IN_libc
 #  define CENABLE	bl JUMPTARGET(__libc_enable_asynccancel)
 #  define CDISABLE	bl JUMPTARGET(__libc_disable_asynccancel)
+# elif defined IS_IN_librt
+#  define CENABLE	bl JUMPTARGET(__librt_enable_asynccancel)
+#  define CDISABLE	bl JUMPTARGET(__librt_disable_asynccancel)
+# else
+#  error Unsupported library
 # endif
 
 # ifndef __ASSEMBLER__

nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h

@@ -79,9 +79,14 @@
 # ifdef IS_IN_libpthread
 #  define CENABLE	bl JUMPTARGET(__pthread_enable_asynccancel)
 #  define CDISABLE	bl JUMPTARGET(__pthread_disable_asynccancel)
-# else
+# elif !defined NOT_IN_libc
 #  define CENABLE	bl JUMPTARGET(__libc_enable_asynccancel)
 #  define CDISABLE	bl JUMPTARGET(__libc_disable_asynccancel)
+# elif defined IS_IN_librt
+#  define CENABLE	bl JUMPTARGET(__librt_enable_asynccancel)
+#  define CDISABLE	bl JUMPTARGET(__librt_disable_asynccancel)
+# else
+#  error Unsupported library
 # endif
 
 # ifndef __ASSEMBLER__

nptl/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h

@@ -62,9 +62,14 @@ L(pseudo_end):
 # ifdef IS_IN_libpthread
 #  define CENABLE	__pthread_enable_asynccancel
 #  define CDISABLE	__pthread_disable_asynccancel
-# else
+# elif !defined NOT_IN_libc
 #  define CENABLE	__libc_enable_asynccancel
 #  define CDISABLE	__libc_disable_asynccancel
+# elif defined IS_IN_librt
+#  define CENABLE	__librt_enable_asynccancel
+#  define CDISABLE	__librt_disable_asynccancel
+# else
+#  error Unsupported library
 # endif
 
 #define STM_0		/* Nothing */

nptl/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h

@@ -58,10 +58,15 @@ L(pseudo_end):
 #  define CENABLE	__pthread_enable_asynccancel
 #  define CDISABLE	__pthread_disable_asynccancel
 #  define __local_multiple_threads	__pthread_multiple_threads
-# else
+# elif !defined NOT_IN_libc
 #  define CENABLE	__libc_enable_asynccancel
 #  define CDISABLE	__libc_disable_asynccancel
 #  define __local_multiple_threads	__libc_multiple_threads
+# elif defined IS_IN_librt
+#  define CENABLE	__librt_enable_asynccancel
+#  define CDISABLE	__librt_disable_asynccancel
+# else
+#  error Unsupported library
 # endif
 
 #define STM_0		/* Nothing */
@@ -78,14 +83,31 @@ L(pseudo_end):
 #define LM_4		lmg %r2,%r5,16+160(%r15);
 #define LM_5		lmg %r2,%r5,16+160(%r15);
 
-# ifndef __ASSEMBLER__
+# if defined IS_IN_libpthread || !defined NOT_IN_libc
+#  ifndef __ASSEMBLER__
 extern int __local_multiple_threads attribute_hidden;
-#  define SINGLE_THREAD_P \
+#   define SINGLE_THREAD_P \
   __builtin_expect (__local_multiple_threads == 0, 1)
-# else
-#  define SINGLE_THREAD_P \
+#  else
+#   define SINGLE_THREAD_P \
 	larl	%r1,__local_multiple_threads;				      \
 	icm	%r0,15,0(%r1);
+#  endif
+
+# else
+
+#  ifndef __ASSEMBLER__
+#   define SINGLE_THREAD_P \
+  __builtin_expect (THREAD_GETMEM (THREAD_SELF,				      \
+				   header.multiple_threads) == 0, 1)
+#  else
+#   define SINGLE_THREAD_P \
+	ear	%r1,%a0;						      \
+	sllg	%r1,%r1,32;						      \
+	ear	%r1,%a1;						      \
+	icm	%r1,15,MULTIPLE_THREADS_OFFSET(%r1);
+#  endif
+
 # endif
 
 #elif !defined __ASSEMBLER__

nptl/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h

@@ -94,18 +94,36 @@
 #  define CENABLE	call __pthread_enable_asynccancel;
 #  define CDISABLE	call __pthread_disable_asynccancel;
 #  define __local_multiple_threads __pthread_multiple_threads
-# else
+# elif !defined NOT_IN_libc
 #  define CENABLE	call __libc_enable_asynccancel;
 #  define CDISABLE	call __libc_disable_asynccancel;
 #  define __local_multiple_threads __libc_multiple_threads
+# elif defined IS_IN_librt
+#  define CENABLE	call __librt_enable_asynccancel;
+#  define CDISABLE	call __librt_disable_asynccancel;
+# else
+#  error Unsupported library
 # endif
 
-# ifndef __ASSEMBLER__
+# if defined IS_IN_libpthread || !defined NOT_IN_libc
+#  ifndef __ASSEMBLER__
 extern int __local_multiple_threads attribute_hidden;
 #   define SINGLE_THREAD_P \
   __builtin_expect (__local_multiple_threads == 0, 1)
+#  else
+#   define SINGLE_THREAD_P cmpl $0, __local_multiple_threads(%rip)
+#  endif
+
 # else
-#  define SINGLE_THREAD_P cmpl $0, __local_multiple_threads(%rip)
+
+#  ifndef __ASSEMBLER__
+#   define SINGLE_THREAD_P \
+  __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+				   header.multiple_threads) == 0, 1)
+#  else
+#   define SINGLE_THREAD_P cmpl $0, %fs:MULTIPLE_THREADS_OFFSET
+#  endif
+
 # endif
 
 #elif !defined __ASSEMBLER__

nptl/sysdeps/x86_64/tcb-offsets.sym

@@ -8,3 +8,4 @@ CLEANUP_JMP_BUF		offsetof (struct pthread, cleanup_jmp_buf)
 CLEANUP			offsetof (struct pthread, cleanup)
 CLEANUP_PREV		offsetof (struct _pthread_cleanup_buffer, __prev)
 MUTEX_FUTEX		offsetof (pthread_mutex_t, __data.__lock)
+MULTIPLE_THREADS_OFFSET	offsetof (tcbhead_t, multiple_threads)

nptl/sysdeps/x86_64/tls.h

@@ -41,7 +41,9 @@ typedef struct
 			   thread descriptor used by libpthread.  */
   dtv_t *dtv;
   void *self;		/* Pointer to the thread descriptor.  */
+  int multiple_threads;
 } tcbhead_t;
+
 #else /* __ASSEMBLER__ */
 # include <tcb-offsets.h>
 #endif

sysdeps/unix/sysv/linux/sleep.c

@@ -24,7 +24,7 @@
 #include <unistd.h>
 
 /* We are going to use the `nanosleep' syscall of the kernel.  But the
-   kernel does not implement the sstupid SysV SIGCHLD vs. SIG_IGN
+   kernel does not implement the stupid SysV SIGCHLD vs. SIG_IGN
    behaviour for this syscall.  Therefore we have to emulate it here.  */
 unsigned int
 __sleep (unsigned int seconds)
@@ -35,7 +35,12 @@ __sleep (unsigned int seconds)
 
   /* This is not necessary but some buggy programs depend on this.  */
   if (seconds == 0)
-    return 0;
+    {
+#ifdef CANCELLATION_P
+      CANCELLATION_P (THREAD_SELF);
+#endif
+      return 0;
+    }
 
   /* Linux will wake up the system call, nanosleep, when SIGCHLD
      arrives even if SIGCHLD is ignored.  We have to deal with it