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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.
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Ulrich Drepper
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2667645020
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@ -1,3 +1,8 @@
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2003-06-17 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/unix/sysv/linux/sleep.c: Use CANCELLATION_P if defined before
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returning because seconds==0.
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2003-06-16 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/unix/sysv/linux/i386/socket.S: Add unwind information.
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@ -1,3 +1,28 @@
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2003-06-16 Jakub Jelinek <jakub@redhat.com>
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* sysdeps/pthread/createthread.c (create_thread): Set
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header.multiple_threads unconditionally.
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* allocatestack.c (allocate_stack): Likewise.
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* descr.h (struct pthread): Add header.multiple_threads
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unconditionally.
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* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h (CENABLE, CDISABLE):
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Define for librt. #error if neither libpthread, libc nor librt.
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* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (CENABLE, CDISABLE):
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Likewise.
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* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h (CENABLE,
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CDISABLE): Likewise.
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* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h (CENABLE,
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CDISABLE): Likewise.
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* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h (CENABLE,
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CDISABLE): Likewise.
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* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (CENABLE,
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CDISABLE): Likewise. Access header.multiple_threads outside of
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libc and libpthread.
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* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h (CENABLE, CDISABLE):
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Likewise.
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* sysdeps/x86_64/tls.h (tcbhead_t): Add multiple_threads.
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* sysdeps/x86_64/tcb-offsets.sym (MULTIPLE_THREADS_OFFSET): Define.
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2003-06-17 Ulrich Drepper <drepper@redhat.com>
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* tst-cancel4.c: Add tests for the socket and signal functions, pause.
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@ -321,10 +321,9 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
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stack cache nor will the memory (except the TLS memory) be freed. */
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pd->user_stack = true;
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#ifdef TLS_MULTIPLE_THREADS_IN_TCB
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/* This is at least the second thread. */
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pd->header.multiple_threads = 1;
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#else
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#ifndef TLS_MULTIPLE_THREADS_IN_TCB
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__pthread_multiple_threads = *__libc_multiple_threads_ptr = 1;
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#endif
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@ -454,10 +453,9 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
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pd->lock = LLL_LOCK_INITIALIZER;
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#endif
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#ifdef TLS_MULTIPLE_THREADS_IN_TCB
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/* This is at least the second thread. */
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pd->header.multiple_threads = 1;
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#else
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#ifndef TLS_MULTIPLE_THREADS_IN_TCB
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__pthread_multiple_threads = *__libc_multiple_threads_ptr = 1;
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#endif
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@ -99,7 +99,7 @@ struct pthread
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#if !TLS_DTV_AT_TP
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/* This overlaps the TCB as used for TLS without threads (see tls.h). */
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tcbhead_t header;
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#elif TLS_MULTIPLE_THREADS_IN_TCB
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#else
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struct
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{
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int multiple_threads;
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@ -87,9 +87,7 @@ create_thread (struct pthread *pd, STACK_VARIABLES_PARMS)
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/* We now have for sure more than one thread. The main
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thread might not yet have the flag set. No need to set
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the global variable again if this is what we use. */
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#ifdef TLS_MULTIPLE_THREADS_IN_TCB
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THREAD_SETMEM (THREAD_SELF, header.multiple_threads, 1);
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#endif
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/* Now fill in the information about the new thread in
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the newly created thread's data structure. We cannot let
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@ -160,9 +158,7 @@ create_thread (struct pthread *pd, STACK_VARIABLES_PARMS)
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/* We now have for sure more than one thread. The main thread might
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not yet have the flag set. No need to set the global variable
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again if this is what we use. */
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#ifdef TLS_MULTIPLE_THREADS_IN_TCB
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THREAD_SETMEM (THREAD_SELF, header.multiple_threads, 1);
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#endif
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return 0;
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}
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@ -342,9 +342,14 @@
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# ifdef IS_IN_libpthread
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# define CENABLE call __pthread_enable_asynccancel;
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# define CDISABLE call __pthread_disable_asynccancel
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# else
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# elif !defined NOT_IN_libc
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# define CENABLE call __libc_enable_asynccancel;
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# define CDISABLE call __libc_disable_asynccancel
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# elif defined IS_IN_librt
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# define CENABLE call __librt_enable_asynccancel;
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# define CDISABLE call __librt_disable_asynccancel
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# else
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# error Unsupported library
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# endif
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# define POPSTATE_0 \
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pushl %eax; L(PUSHSTATE): movl %ecx, %eax; CDISABLE; popl %eax; L(POPSTATE):
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@ -85,9 +85,14 @@ __syscall_error_##args: \
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# ifdef IS_IN_libpthread
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# define CENABLE br.call.sptk.many b0 = __pthread_enable_asynccancel
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# define CDISABLE br.call.sptk.many b0 = __pthread_disable_asynccancel
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# else
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# elif !defined NOT_IN_libc
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# define CENABLE br.call.sptk.many b0 = __libc_enable_asynccancel
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# define CDISABLE br.call.sptk.many b0 = __libc_disable_asynccancel
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# elif defined IS_IN_librt
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# define CENABLE br.call.sptk.many b0 = __librt_enable_asynccancel
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# define CDISABLE br.call.sptk.many b0 = __librt_disable_asynccancel
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# else
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# error Unsupported library
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# endif
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#define COPY_ARGS_0 /* Nothing */
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@ -79,9 +79,14 @@
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# ifdef IS_IN_libpthread
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# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel)
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# else
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# elif !defined NOT_IN_libc
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# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel)
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# elif defined IS_IN_librt
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# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel)
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# else
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# error Unsupported library
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# endif
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# ifndef __ASSEMBLER__
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@ -79,9 +79,14 @@
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# ifdef IS_IN_libpthread
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# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel)
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# else
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# elif !defined NOT_IN_libc
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# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel)
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# elif defined IS_IN_librt
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# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel)
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# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel)
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# else
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# error Unsupported library
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# endif
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# ifndef __ASSEMBLER__
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@ -62,9 +62,14 @@ L(pseudo_end):
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# ifdef IS_IN_libpthread
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# define CENABLE __pthread_enable_asynccancel
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# define CDISABLE __pthread_disable_asynccancel
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# else
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# elif !defined NOT_IN_libc
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# define CENABLE __libc_enable_asynccancel
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# define CDISABLE __libc_disable_asynccancel
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# elif defined IS_IN_librt
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# define CENABLE __librt_enable_asynccancel
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# define CDISABLE __librt_disable_asynccancel
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# else
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# error Unsupported library
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# endif
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#define STM_0 /* Nothing */
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@ -58,10 +58,15 @@ L(pseudo_end):
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# define CENABLE __pthread_enable_asynccancel
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# define CDISABLE __pthread_disable_asynccancel
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# define __local_multiple_threads __pthread_multiple_threads
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# else
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# elif !defined NOT_IN_libc
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# define CENABLE __libc_enable_asynccancel
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# define CDISABLE __libc_disable_asynccancel
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# define __local_multiple_threads __libc_multiple_threads
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# elif defined IS_IN_librt
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# define CENABLE __librt_enable_asynccancel
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# define CDISABLE __librt_disable_asynccancel
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# else
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# error Unsupported library
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# endif
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#define STM_0 /* Nothing */
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@ -78,14 +83,31 @@ L(pseudo_end):
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#define LM_4 lmg %r2,%r5,16+160(%r15);
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#define LM_5 lmg %r2,%r5,16+160(%r15);
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# ifndef __ASSEMBLER__
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# if defined IS_IN_libpthread || !defined NOT_IN_libc
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# ifndef __ASSEMBLER__
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extern int __local_multiple_threads attribute_hidden;
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# define SINGLE_THREAD_P \
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# define SINGLE_THREAD_P \
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__builtin_expect (__local_multiple_threads == 0, 1)
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# else
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# define SINGLE_THREAD_P \
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# else
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# define SINGLE_THREAD_P \
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larl %r1,__local_multiple_threads; \
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icm %r0,15,0(%r1);
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# endif
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# else
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# ifndef __ASSEMBLER__
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# define SINGLE_THREAD_P \
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__builtin_expect (THREAD_GETMEM (THREAD_SELF, \
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header.multiple_threads) == 0, 1)
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# else
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# define SINGLE_THREAD_P \
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ear %r1,%a0; \
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sllg %r1,%r1,32; \
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ear %r1,%a1; \
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icm %r1,15,MULTIPLE_THREADS_OFFSET(%r1);
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# endif
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# endif
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#elif !defined __ASSEMBLER__
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@ -94,18 +94,36 @@
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# define CENABLE call __pthread_enable_asynccancel;
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# define CDISABLE call __pthread_disable_asynccancel;
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# define __local_multiple_threads __pthread_multiple_threads
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# else
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# elif !defined NOT_IN_libc
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# define CENABLE call __libc_enable_asynccancel;
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# define CDISABLE call __libc_disable_asynccancel;
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# define __local_multiple_threads __libc_multiple_threads
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# elif defined IS_IN_librt
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# define CENABLE call __librt_enable_asynccancel;
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# define CDISABLE call __librt_disable_asynccancel;
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# else
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# error Unsupported library
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# endif
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# ifndef __ASSEMBLER__
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# if defined IS_IN_libpthread || !defined NOT_IN_libc
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# ifndef __ASSEMBLER__
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extern int __local_multiple_threads attribute_hidden;
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# define SINGLE_THREAD_P \
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__builtin_expect (__local_multiple_threads == 0, 1)
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# else
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# define SINGLE_THREAD_P cmpl $0, __local_multiple_threads(%rip)
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# endif
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# else
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# define SINGLE_THREAD_P cmpl $0, __local_multiple_threads(%rip)
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# ifndef __ASSEMBLER__
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# define SINGLE_THREAD_P \
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__builtin_expect (THREAD_GETMEM (THREAD_SELF, \
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header.multiple_threads) == 0, 1)
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# else
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# define SINGLE_THREAD_P cmpl $0, %fs:MULTIPLE_THREADS_OFFSET
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# endif
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# endif
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#elif !defined __ASSEMBLER__
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@ -8,3 +8,4 @@ CLEANUP_JMP_BUF offsetof (struct pthread, cleanup_jmp_buf)
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CLEANUP offsetof (struct pthread, cleanup)
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CLEANUP_PREV offsetof (struct _pthread_cleanup_buffer, __prev)
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MUTEX_FUTEX offsetof (pthread_mutex_t, __data.__lock)
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MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads)
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@ -41,7 +41,9 @@ typedef struct
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thread descriptor used by libpthread. */
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dtv_t *dtv;
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void *self; /* Pointer to the thread descriptor. */
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int multiple_threads;
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} tcbhead_t;
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#else /* __ASSEMBLER__ */
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# include <tcb-offsets.h>
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#endif
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@ -24,7 +24,7 @@
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#include <unistd.h>
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/* We are going to use the `nanosleep' syscall of the kernel. But the
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kernel does not implement the sstupid SysV SIGCHLD vs. SIG_IGN
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kernel does not implement the stupid SysV SIGCHLD vs. SIG_IGN
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behaviour for this syscall. Therefore we have to emulate it here. */
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unsigned int
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__sleep (unsigned int seconds)
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@ -35,7 +35,12 @@ __sleep (unsigned int seconds)
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/* This is not necessary but some buggy programs depend on this. */
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if (seconds == 0)
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return 0;
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{
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#ifdef CANCELLATION_P
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CANCELLATION_P (THREAD_SELF);
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#endif
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return 0;
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}
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/* Linux will wake up the system call, nanosleep, when SIGCHLD
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arrives even if SIGCHLD is ignored. We have to deal with it
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