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authorUlrich Drepper <drepper@redhat.com>2002-12-18 01:38:17 +0000
committerUlrich Drepper <drepper@redhat.com>2002-12-18 01:38:17 +0000
commit82f81a9086320d12eb2fc45766203954b90461a2 (patch)
treeb2c668e5ee6bc1e9c4176cee394ac7f37b382617 /linuxthreads/sysdeps/unix/sysv/linux/i386
parentf077a4a9f027b938bd091583e3ec34725cba428c (diff)
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Update.
* sysdeps/unix/sysv/linux/alpha/syscalls.list (msgrcv, msgsnd): Make cancelable. * sysdeps/unix/sysv/linux/hppa/syscalls.list (msgrcv, msgsnd): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (msgrcv, msgsnd): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgrcv, msgsnd): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgrcv, msgsnd): Likewise. * sysdeps/unix/sysv/linux/ia64/sigsuspend.c (__sigsuspend): Likewise.
Diffstat (limited to 'linuxthreads/sysdeps/unix/sysv/linux/i386')
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h124
1 files changed, 124 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
new file mode 100644
index 0000000000..30be0b9c5f
--- /dev/null
+++ b/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
@@ -0,0 +1,124 @@
+/* Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <tls.h>
+#include <pt-machine.h>
+#ifndef ASSEMBLER
+# include <linuxthreads/internals.h>
+#endif
+
+#if defined FLOATING_STACKS && USE___THREAD
+# define MULTIPLE_THREADS_OFFSET 12
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args) \
+ .text; \
+ ENTRY (name) \
+ SINGLE_THREAD_P; \
+ jne L(pseudo_cancel); \
+ DO_CALL (syscall_name, args); \
+ cmpl $-4095, %eax; \
+ jae SYSCALL_ERROR_LABEL; \
+ ret; \
+ L(pseudo_cancel): \
+ CENABLE \
+ SAVE_OLDTYPE_##args \
+ PUSHARGS_##args \
+ DOCARGS_##args \
+ movl $SYS_ify (syscall_name), %eax; \
+ int $0x80 \
+ POPARGS_##args; \
+ POPCARGS_##args \
+ cmpl $-4095, %eax; \
+ jae SYSCALL_ERROR_LABEL; \
+ L(pseudo_end):
+
+# define SAVE_OLDTYPE_0 movl %eax, %edx;
+# define SAVE_OLDTYPE_1 SAVE_OLDTYPE_0
+# define SAVE_OLDTYPE_2 pushl %eax;
+# define SAVE_OLDTYPE_3 SAVE_OLDTYPE_2
+# define SAVE_OLDTYPE_4 SAVE_OLDTYPE_2
+# define SAVE_OLDTYPE_5 SAVE_OLDTYPE_2
+
+# define DOCARGS_0 DOARGS_0
+# define DOCARGS_1 DOARGS_1
+# define DOCARGS_2 _DOARGS_2 (12)
+# define DOCARGS_3 _DOARGS_3 (20)
+# define DOCARGS_4 _DOARGS_4 (28)
+# define DOCARGS_5 _DOARGS_5 (36)
+
+# ifdef IS_IN_libpthread
+# define CENABLE call __pthread_enable_asynccancel;
+# define CDISABLE call __pthread_disable_asynccancel
+# else
+# define CENABLE call __libc_enable_asynccancel;
+# define CDISABLE call __libc_disable_asynccancel
+# endif
+# define POPCARGS_0 pushl %eax; movl %ecx, %eax; CDISABLE; popl %eax;
+# define POPCARGS_1 POPCARGS_0
+# define POPCARGS_2 xchgl (%esp), %eax; CDISABLE; popl %eax;
+# define POPCARGS_3 POPCARGS_2
+# define POPCARGS_4 POPCARGS_2
+# define POPCARGS_5 POPCARGS_2
+
+#if !defined NOT_IN_libc
+# define __local_multiple_threads __libc_multiple_threads
+#else
+# define __local_multiple_threads __pthread_multiple_threads
+#endif
+
+# ifndef ASSEMBLER
+# if defined MULTIPLE_THREADS_OFFSET && defined PIC
+# define SINGLE_THREAD_P \
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+ p_header.data.multiple_threads) == 0, 1)
+# else
+extern int __local_multiple_threads attribute_hidden;
+# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
+# endif
+# else
+# if !defined PIC
+# define SINGLE_THREAD_P cmpl $0, __local_multiple_threads
+# elif defined MULTIPLE_THREADS_OFFSET
+# define SINGLE_THREAD_P cmpl $0, %gs:MULTIPLE_THREADS_OFFSET
+# else
+# 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)
+# else
+# define SINGLE_THREAD_P \
+ call __i686.get_pc_thunk.cx; \
+ addl $_GLOBAL_OFFSET_TABLE_, %ecx; \
+ cmpl $0, __local_multiple_threads@GOTOFF(%ecx)
+# endif
+# endif
+# endif
+
+#elif !defined ASSEMBLER
+
+/* This code should never be used but we define it anyhow. */
+# define SINGLE_THREAD_P (1)
+
+#endif