+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.
+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.
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
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
#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;
/* 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
/* 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;
}
# 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):
# 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 */
# 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__
# 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__
# 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 */
# 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 */
#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__
# 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__
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)
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
#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)
/* 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
projects / thirdparty / glibc.git / commitdiff
