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authorAndreas Schwab <schwab@suse.de>2002-12-27 21:09:01 +0000
committerAndreas Schwab <schwab@suse.de>2002-12-27 21:09:01 +0000
commit97d0db285510d206f45dc53dd6001574f077fa38 (patch)
tree81152e86685dfb68833f76d34fa9e22d4dd154ce
parent1c68c264bbf6ef3f5528f8e944c8de650f594865 (diff)
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Cancellation handling for m68k.
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h114
1 files changed, 114 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h
new file mode 100644
index 0000000000..1f1f65fa4d
--- /dev/null
+++ b/linuxthreads/sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h
@@ -0,0 +1,114 @@
+/* Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Andreas Schwab <schwab@suse.de>, 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>
+#ifndef ASSEMBLER
+# include <linuxthreads/internals.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 .Lpseudo_cancel; \
+ DO_CALL (syscall_name, args); \
+ cmp.l &-4095, %d0; \
+ jcc SYSCALL_ERROR_LABEL; \
+ rts; \
+ .Lpseudo_cancel: \
+ CENABLE; \
+ DOCARGS_##args \
+ move.l &SYS_ify (syscall_name), %d0; \
+ trap &0; \
+ move.l %d0, %d2; \
+ CDISABLE; \
+ addq.l &4, %sp; \
+ move.l %d2, %d0; \
+ UNDOCARGS_##args \
+ cmp.l &-4095, %d0; \
+ jcc SYSCALL_ERROR_LABEL
+
+# define DOCARGS_0 move.l %d2, -(%sp);
+# define _DOCARGS_0(n)
+# define UNDOCARGS_0 move.l (%sp)+, %d2;
+
+# define DOCARGS_1 _DOCARGS_1 (4); DOCARGS_0
+# define _DOCARGS_1(n) move.l n(%sp), %d1; _DOARGS_0 (n)
+# define UNDOCARGS_1 UNDOCARGS_0
+
+# define DOCARGS_2 _DOCARGS_2 (8)
+# define _DOCARGS_2(n) move.l %d2, -(%sp); move.l n+4(%sp), %d2; \
+ _DOCARGS_1 (n)
+# define UNDOCARGS_2 UNDOCARGS_1
+
+# define DOCARGS_3 _DOCARGS_3 (12)
+# define _DOCARGS_3(n) move.l %d3, -(%sp); move.l n+4(%sp), %d3; \
+ _DOCARGS_2 (n)
+# define UNDOCARGS_3 UNDOCARGS_2; move.l (%sp)+, %d3;
+
+# define DOCARGS_4 _DOCARGS_4 (16)
+# define _DOCARGS_4(n) move.l %d4, -(%sp); move.l n+4(%sp), %d4; \
+ _DOCARGS_3 (n)
+# define UNDOCARGS_4 UNDOCARGS_3; move.l (%sp)+, %d4;
+
+# define DOCARGS_5 _DOCARGS_5 (20)
+# define _DOCARGS_5(n) move.l %d5, -(%sp); move.l n+4(%sp), %d5; \
+ _DOCARGS_4 (n)
+# define UNDOCARGS_5 UNDOCARGS_4; move.l (%sp)+, %d5;
+
+# ifdef IS_IN_libpthread
+# define CENABLE jbsr __pthread_enable_asynccancel
+# define CDISABLE jbsr __pthread_disable_asynccancel
+# else
+# define CENABLE jbsr __libc_enable_asynccancel
+# define CDISABLE jbsr __libc_disable_asynccancel
+# endif
+
+# if !defined NOT_IN_libc
+# define __local_multiple_threads __libc_multiple_threads
+# else
+# define __local_multiple_threads __pthread_multiple_threads
+# endif
+
+# ifndef ASSEMBLER
+extern int __local_multiple_threads attribute_hidden;
+# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
+# else
+# if !defined PIC
+# define SINGLE_THREAD_P tst.l __local_multiple_threads
+# else
+# if !defined HAVE_HIDDEN || !USE___THREAD
+# define SINGLE_THREAD_P \
+ tst.l (__local_multiple_threads@GOTPC, %pc)
+# else
+# define SINGLE_THREAD_P \
+ tst.l (__local_multiple_threads@GOTPC, %pc)
+# endif
+# endif
+# endif
+
+#elif !defined ASSEMBLER
+
+/* This code should never be used but we define it anyhow. */
+# define SINGLE_THREAD_P (1)
+
+#endif