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authorUlrich Drepper <drepper@redhat.com>2003-03-10 08:00:02 +0000
committerUlrich Drepper <drepper@redhat.com>2003-03-10 08:00:02 +0000
commit7b44a5e0a7a87304a4dc5ac8478579f5caa7f6a1 (patch)
tree13df791793000abedfd685bc7574a339a58c7839
parentc2e5e08573cd001c4f57f6c0b1c5f7708c6eca6d (diff)
Update.
* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: New file.
-rw-r--r--nptl/ChangeLog2
-rw-r--r--nptl/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h115
2 files changed, 117 insertions, 0 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 91679b97d3..ba58d28da8 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,5 +1,7 @@
2003-03-09 Ulrich Drepper <drepper@redhat.com>
+ * sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: New file.
+
* sysdeps/unix/sysv/linux/x86_64/pthread_once.S: Fix many
leftovers from the ia32 code.
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h
new file mode 100644
index 0000000000..fde001d4a6
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h
@@ -0,0 +1,115 @@
+/* Copyright (C) 2002, 2003 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>
+#ifndef __ASSEMBLER__
+# include <nptl/pthreadP.h>
+#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); \
+ cmpq $-4095, %rax; \
+ jae SYSCALL_ERROR_LABEL; \
+ ret; \
+ L(pseudo_cancel): \
+ /* Save registers that might get destroyed. */ \
+ SAVESTK_##args \
+ PUSHARGS_##args \
+ CENABLE \
+ /* Restore registers. */ \
+ POPARGS_##args \
+ /* The return value from CENABLE is argument for CDISABLE. */ \
+ movq %rax, (%rsp); \
+ movq $SYS_ify (syscall_name), %rax; \
+ syscall; \
+ movq (%rsp), %rdi; \
+ /* Save %rax since it's the error code from the syscall. */ \
+ movq %rax, 8(%rsp); \
+ CDISABLE \
+ movq 8(%rsp), %rax; \
+ RESTSTK_##args \
+ cmpq $-4095, %rax; \
+ jae SYSCALL_ERROR_LABEL; \
+ L(pseudo_end):
+
+# define PUSHARGS_0 /* Nothing. */
+# define PUSHARGS_1 PUSHARGS_0 movq %rdi, 8(%rsp);
+# define PUSHARGS_2 PUSHARGS_1 movq %rsi, 16(%rsp);
+# define PUSHARGS_3 PUSHARGS_2 movq %rdx, 24(%rsp);
+# define PUSHARGS_4 PUSHARGS_3 movq %rcx, 32(%rsp);
+# define PUSHARGS_5 PUSHARGS_4 movq %r8, 40(%rsp);
+# define PUSHARGS_6 PUSHARGS_5 movq %r9, 48(%rsp);
+
+# define POPARGS_0 /* Nothing. */
+# define POPARGS_1 POPARGS_0 movq 8(%rsp), %rdi;
+# define POPARGS_2 POPARGS_1 movq 16(%rsp), %rsi;
+# define POPARGS_3 POPARGS_2 movq 24(%rsp), %rdx;
+# define POPARGS_4 POPARGS_3 movq 32(%rsp), %r10;
+# define POPARGS_5 POPARGS_4 movq 40(%rsp), %r8;
+# define POPARGS_6 POPARGS_5 movq 48(%rsp), %r9;
+
+/* We always have to align the stack before calling a function. */
+# define SAVESTK_0 subq $24, %rsp;
+# define SAVESTK_1 SAVESTK_0
+# define SAVESTK_2 SAVESTK_1
+# define SAVESTK_3 subq $40, %rsp;
+# define SAVESTK_4 SAVESTK_3
+# define SAVESTK_5 subq $56, %rsp;
+# define SAVESTK_6 SAVESTK_5
+
+# define RESTSTK_0 addq $24,%rsp;
+# define RESTSTK_1 RESTSTK_0
+# define RESTSTK_2 RESTSTK_1
+# define RESTSTK_3 addq $40, %rsp;
+# define RESTSTK_4 RESTSTK_3
+# define RESTSTK_5 addq $56, %rsp;
+# define RESTSTK_6 RESTSTK_5
+
+# ifdef IS_IN_libpthread
+# define CENABLE call __pthread_enable_asynccancel;
+# define CDISABLE call __pthread_disable_asynccancel;
+# define __local_multiple_threads __pthread_multiple_threads
+# else
+# define CENABLE call __libc_enable_asynccancel;
+# define CDISABLE call __libc_disable_asynccancel;
+# define __local_multiple_threads __libc_multiple_threads
+# endif
+
+# 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
+
+#elif !defined __ASSEMBLER__
+
+/* This code should never be used but we define it anyhow. */
+# define SINGLE_THREAD_P (1)
+
+#endif