* [PATCH] cancellation support in librt for linuxthreads
@ 2003-06-17 22:03 Jakub Jelinek
2003-06-17 22:30 ` Ulrich Drepper
0 siblings, 1 reply; 2+ messages in thread
From: Jakub Jelinek @ 2003-06-17 22:03 UTC (permalink / raw)
To: Ulrich Drepper; +Cc: Glibc hackers
Hi!
Seems to work on all the arches I've tried (all those changed with exception
of sparc*, but that one should be obvious ;) ).
2003-06-18 Jakub Jelinek <jakub@redhat.com>
* internals.h (__librt_multiple_threads, __librt_enable_asynccancel,
__librt_disable_asynccancel): Declare.
(LIBC_CANCEL_ASYNC, LIBC_CANCEL_RESET, LIBC_CANCEL_HANDLED): Define
for IS_IN_librt.
* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Support cancellation
in librt.
* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise.
* sysdeps/x86_64/tcb-offsets.sym: New file.
* sysdeps/x86_64/Makefile: New file.
* sysdeps/x86_64/tls.h (tcbhead_t): Add multiple_threads.
* Versions (libc): Export __librt_enable_asynccancel,
__librt_disable_asynccancel and __librt_multiple_threads as
GLIBC_PRIVATE.
* libc-cancellation.c (__librt_multiple_threads,
__librt_enable_asynccancel, __librt_disable_asynccancel): New aliases.
--- libc/linuxthreads/internals.h.jj 2003-04-23 14:11:51.000000000 -0400
+++ libc/linuxthreads/internals.h 2003-06-17 09:45:07.000000000 -0400
@@ -257,6 +257,7 @@ static inline int nonexisting_handle(pth
/* Defined and used in libc.so. */
extern int __libc_multiple_threads attribute_hidden;
+extern int __librt_multiple_threads;
/* Debugging */
@@ -468,6 +469,10 @@ extern int __libc_enable_asynccancel (vo
extern void __libc_disable_asynccancel (int oldtype)
internal_function attribute_hidden;
+/* The two functions are in libc.so and are exported. */
+extern int __librt_enable_asynccancel (void);
+extern void __librt_disable_asynccancel (int oldtype) internal_function;
+
extern void __pthread_cleanup_upto (__jmp_buf target,
char *targetframe) attribute_hidden;
extern pid_t __pthread_fork (struct fork_block *b) attribute_hidden;
@@ -480,7 +485,7 @@ extern pid_t __pthread_fork (struct fork
# define LIBC_CANCEL_HANDLED() \
__asm (".globl " __SYMBOL_PREFIX "__libc_enable_asynccancel"); \
__asm (".globl " __SYMBOL_PREFIX "__libc_disable_asynccancel")
-#elif defined NOT_IN_libc && defined IS_IN_libpthread
+#elif defined IS_IN_libpthread
# define LIBC_CANCEL_ASYNC() \
__pthread_enable_asynccancel ()
# define LIBC_CANCEL_RESET(oldtype) \
@@ -488,6 +493,14 @@ extern pid_t __pthread_fork (struct fork
# define LIBC_CANCEL_HANDLED() \
__asm (".globl " __SYMBOL_PREFIX "__pthread_enable_asynccancel"); \
__asm (".globl " __SYMBOL_PREFIX "__pthread_disable_asynccancel")
+#elif defined IS_IN_librt
+# define LIBC_CANCEL_ASYNC() \
+ __librt_enable_asynccancel ()
+# define LIBC_CANCEL_RESET(oldtype) \
+ __librt_disable_asynccancel (oldtype)
+# define LIBC_CANCEL_HANDLED() \
+ __asm (".globl " __SYMBOL_PREFIX "__librt_enable_asynccancel"); \
+ __asm (".globl " __SYMBOL_PREFIX "__librt_disable_asynccancel")
#else
# define LIBC_CANCEL_ASYNC() 0 /* Just a dummy value. */
# define LIBC_CANCEL_RESET(val) ((void)(val)) /* Nothing, but evaluate it. */
--- libc/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h.jj 2003-04-14 07:11:23.000000000 -0400
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h 2003-06-17 09:57:30.000000000 -0400
@@ -24,7 +24,7 @@
# include <linuxthreads/internals.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
@@ -108,8 +108,10 @@
#if !defined NOT_IN_libc
# define __local_multiple_threads __libc_multiple_threads
-#else
+#elif defined IS_IN_libpthread
# define __local_multiple_threads __pthread_multiple_threads
+#else
+# define __local_multiple_threads __librt_multiple_threads
#endif
# ifndef __ASSEMBLER__
@@ -118,7 +120,12 @@
__builtin_expect (THREAD_GETMEM (THREAD_SELF, \
p_header.data.multiple_threads) == 0, 1)
# else
-extern int __local_multiple_threads attribute_hidden;
+extern int __local_multiple_threads
+# if !defined NOT_IN_libc || defined IS_IN_libpthread
+ attribute_hidden;
+# else
+ ;
+# endif
# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
# endif
# else
@@ -127,16 +134,23 @@ extern int __local_multiple_threads attr
# elif defined FLOATING_STACKS && USE___THREAD
# define SINGLE_THREAD_P cmpl $0, %gs:MULTIPLE_THREADS_OFFSET
# else
-# if !defined HAVE_HIDDEN || !USE___THREAD
+# if !defined NOT_IN_libc || defined IS_IN_libpthread
+# define __SINGLE_THREAD_CMP cmpl $0, __local_multiple_threads@GOTOFF(%ecx)
+# else
+# define __SINGLE_THREAD_CMP \
+ movl __local_multiple_threads@GOT(%ecx), %ecx;\
+ cmpl $0, (%ecx)
+# endif
+# if !defined HAVE_HIDDEN || !USE___THREAD
# define SINGLE_THREAD_P \
SETUP_PIC_REG (cx); \
addl $_GLOBAL_OFFSET_TABLE_, %ecx; \
- cmpl $0, __local_multiple_threads@GOTOFF(%ecx)
+ __SINGLE_THREAD_CMP
# else
# define SINGLE_THREAD_P \
call __i686.get_pc_thunk.cx; \
addl $_GLOBAL_OFFSET_TABLE_, %ecx; \
- cmpl $0, __local_multiple_threads@GOTOFF(%ecx)
+ __SINGLE_THREAD_CMP
# endif
# endif
# endif
--- libc/linuxthreads/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h.jj 2003-04-29 07:19:32.000000000 -0400
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h 2003-06-17 10:17:02.000000000 -0400
@@ -23,7 +23,7 @@
# include <linuxthreads/internals.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
@@ -85,9 +85,12 @@ __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
+# else
+# define CENABLE br.call.sptk.many b0 = __librt_enable_asynccancel
+# define CDISABLE br.call.sptk.many b0 = __librt_disable_asynccancel
# endif
#define COPY_ARGS_0 /* Nothing */
--- libc/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h.jj 2003-01-14 10:01:31.000000000 -0500
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h 2003-06-17 10:29:45.000000000 -0400
@@ -23,7 +23,7 @@
# include <linuxthreads/internals.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
@@ -62,9 +62,12 @@ 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
+# else
+# define CENABLE __librt_enable_asynccancel
+# define CDISABLE __librt_disable_asynccancel
# endif
#define STM_0 /* Nothing */
--- libc/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h.jj 2003-01-30 05:01:47.000000000 -0500
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h 2003-06-17 10:39:36.000000000 -0400
@@ -23,7 +23,7 @@
# include <linuxthreads/internals.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
@@ -58,10 +58,13 @@ 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
+# else
+# define CENABLE __librt_enable_asynccancel
+# define CDISABLE __librt_disable_asynccancel
# endif
#define STM_0 /* Nothing */
@@ -78,14 +81,31 @@ 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 NOT_IN_libc || defined IS_IN_libpthread
+# 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, \
+ p_header.data.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__
--- libc/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h.jj 2003-01-30 05:01:47.000000000 -0500
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h 2003-06-17 10:44:54.000000000 -0400
@@ -23,7 +23,7 @@
# include <linuxthreads/internals.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
@@ -68,9 +68,12 @@ SYSCALL_ERROR_HANDLER_ENTRY(__syscall_er
# 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
+# else
+# define CENABLE call __librt_enable_asynccancel
+# define CDISABLE call __librt_disable_asynccancel
# endif
#define COPY_ARGS_0 /* Nothing */
--- libc/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h.jj 2003-02-22 17:53:59.000000000 -0500
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h 2003-06-17 10:44:37.000000000 -0400
@@ -23,7 +23,7 @@
# include <linuxthreads/internals.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
@@ -67,9 +67,12 @@ SYSCALL_ERROR_HANDLER_ENTRY(__syscall_er
# 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
+# else
+# define CENABLE call __librt_enable_asynccancel
+# define CDISABLE call __librt_disable_asynccancel
# endif
#define COPY_ARGS_0 /* Nothing */
--- libc/linuxthreads/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h.jj 2003-06-04 14:23:06.000000000 -0400
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h 2003-06-17 11:04:01.000000000 -0400
@@ -24,7 +24,7 @@
# include <linuxthreads/internals.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
@@ -94,18 +94,34 @@
# 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
+# else
+# define CENABLE call __librt_enable_asynccancel@plt;
+# define CDISABLE call __librt_disable_asynccancel@plt;
# 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, \
+ p_header.data.multiple_threads) == 0, 1)
+# else
+# define SINGLE_THREAD_P cmpl $0, %fs:MULTIPLE_THREADS_OFFSET
+# endif
+
# endif
#elif !defined __ASSEMBLER__
--- libc/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h.jj 2003-04-29 07:19:32.000000000 -0400
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h 2003-06-17 10:24:14.000000000 -0400
@@ -23,7 +23,7 @@
# include <linuxthreads/internals.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
@@ -78,9 +78,12 @@
# 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)
+# else
+# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel)
+# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel)
# endif
# ifndef __ASSEMBLER__
--- libc/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h.jj 2003-06-16 14:26:10.000000000 -0400
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h 2003-06-17 10:27:52.000000000 -0400
@@ -22,7 +22,7 @@
# include <linuxthreads/internals.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
@@ -78,14 +78,23 @@
# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel)
# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel)
# define __local_multiple_threads __pthread_multiple_threads
-# else
+# elif !defined NOT_IN_libc
# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel)
# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel)
# define __local_multiple_threads __libc_multiple_threads
+# else
+# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel); nop
+# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel); nop
+# define __local_multiple_threads __librt_multiple_threads
# endif
# ifndef __ASSEMBLER__
-extern int __local_multiple_threads attribute_hidden;
+extern int __local_multiple_threads
+# if !defined NOT_IN_libc || defined IS_IN_libpthread
+ attribute_hidden;
+# else
+ ;
+# endif
# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
# else
# define SINGLE_THREAD_P \
--- libc/linuxthreads/sysdeps/x86_64/tcb-offsets.sym.jj 2003-06-17 10:46:05.000000000 -0400
+++ libc/linuxthreads/sysdeps/x86_64/tcb-offsets.sym 2003-06-17 10:46:33.000000000 -0400
@@ -0,0 +1,4 @@
+#include <sysdep.h>
+#include <tls.h>
+
+MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads)
--- libc/linuxthreads/sysdeps/x86_64/Makefile.jj 2003-06-17 10:46:15.000000000 -0400
+++ libc/linuxthreads/sysdeps/x86_64/Makefile 2003-06-17 10:46:23.000000000 -0400
@@ -0,0 +1,3 @@
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
--- libc/linuxthreads/sysdeps/x86_64/tls.h.jj 2002-12-28 06:29:35.000000000 -0500
+++ libc/linuxthreads/sysdeps/x86_64/tls.h 2003-06-17 10:47:00.000000000 -0400
@@ -39,6 +39,7 @@ typedef struct
thread descriptor used by libpthread. */
dtv_t *dtv;
void *self; /* Pointer to the thread descriptor. */
+ int multiple_threads;
} tcbhead_t;
#endif
--- libc/linuxthreads/Versions.jj 2003-03-20 05:58:49.000000000 -0500
+++ libc/linuxthreads/Versions 2003-06-17 09:46:38.000000000 -0400
@@ -31,7 +31,8 @@ libc {
__libc_creat; __libc_poll; __libc_pselect; __libc_select;
__libc_sigpause; __libc_sigsuspend; __libc_sigwait; __libc_sigwaitinfo;
- __libc_waitid; __libc___xpg_sigpause;
+ __libc_waitid; __libc___xpg_sigpause; __librt_enable_asynccancel;
+ __librt_disable_asynccancel; __librt_multiple_threads;
}
}
--- libc/linuxthreads/libc-cancellation.c.jj 2003-01-03 08:06:37.000000000 -0500
+++ libc/linuxthreads/libc-cancellation.c 2003-06-17 09:46:22.000000000 -0400
@@ -31,7 +31,8 @@
weak_extern (__pthread_do_exit)
# endif
-int __libc_multiple_threads attribute_hidden;
+int __libc_multiple_threads attribute_hidden __attribute__((nocommon));
+strong_alias (__libc_multiple_threads, __librt_multiple_threads);
/* The next two functions are similar to pthread_setcanceltype() but
more specialized for the use in the cancelable functions like write().
@@ -49,6 +50,7 @@ __libc_enable_asynccancel (void)
(PTHREAD_CANCELED, CURRENT_STACK_FRAME), 0);
return oldtype;
}
+strong_alias (__libc_enable_asynccancel, __librt_enable_asynccancel)
void
internal_function attribute_hidden
@@ -57,5 +59,6 @@ __libc_disable_asynccancel (int oldtype)
pthread_descr self = thread_self();
LIBC_THREAD_SETMEM(self, p_canceltype, oldtype);
}
+strong_alias (__libc_disable_asynccancel, __librt_disable_asynccancel)
#endif
Jakub
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] cancellation support in librt for linuxthreads
2003-06-17 22:03 [PATCH] cancellation support in librt for linuxthreads Jakub Jelinek
@ 2003-06-17 22:30 ` Ulrich Drepper
0 siblings, 0 replies; 2+ messages in thread
From: Ulrich Drepper @ 2003-06-17 22:30 UTC (permalink / raw)
To: Jakub Jelinek; +Cc: Glibc hackers
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Jakub Jelinek wrote:
> Seems to work on all the arches I've tried (all those changed with exception
> of sparc*, but that one should be obvious ;) ).
Applied.
- --
- --------------. ,-. 444 Castro Street
Ulrich Drepper \ ,-----------------' \ Mountain View, CA 94041 USA
Red Hat `--' drepper at redhat.com `---------------------------
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Version: GnuPG v1.2.1 (GNU/Linux)
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vuJYhysY+Oy+TK6+yvXb7n8=
=uBOP
-----END PGP SIGNATURE-----
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2003-06-17 22:03 [PATCH] cancellation support in librt for linuxthreads Jakub Jelinek
2003-06-17 22:30 ` Ulrich Drepper
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