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-rw-r--r--libpthread/linuxthreads/sysdeps/powerpc/pt-machine.h69
-rw-r--r--libpthread/linuxthreads/sysdeps/powerpc/sigcontextinfo.h27
2 files changed, 96 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/sysdeps/powerpc/pt-machine.h b/libpthread/linuxthreads/sysdeps/powerpc/pt-machine.h
new file mode 100644
index 000000000..578369a7f
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/powerpc/pt-machine.h
@@ -0,0 +1,69 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ powerpc version.
+ Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If
+ not, write to the Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+/* These routines are from Appendix G of the 'PowerPC 601 RISC Microprocessor
+ User's Manual', by IBM and Motorola. */
+
+#ifndef PT_EI
+# define PT_EI extern inline
+#endif
+
+/* For multiprocessor systems, we want to ensure all memory accesses
+ are completed before we reset a lock. */
+#if 0
+/* on non multiprocessor systems, you can just: */
+#define sync() /* nothing */
+#else
+#define sync() __asm__ __volatile__ ("sync")
+#endif
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char * stack_pointer __asm__ ("r1");
+
+/* Compare-and-swap for semaphores. */
+/* note that test-and-set(x) is the same as compare-and-swap(x, 0, 1) */
+
+#define HAS_COMPARE_AND_SWAP
+#if BROKEN_PPC_ASM_CR0
+static
+#else
+PT_EI
+#endif
+int
+__compare_and_swap (long int *p, long int oldval, long int newval)
+{
+ int ret;
+
+ sync();
+ __asm__ __volatile__(
+ "0: lwarx %0,0,%1 ;"
+ " xor. %0,%3,%0;"
+ " bne 1f;"
+ " stwcx. %2,0,%1;"
+ " bne- 0b;"
+ "1: "
+ : "=&r"(ret)
+ : "r"(p), "r"(newval), "r"(oldval)
+ : "cr0", "memory");
+ sync();
+ return ret == 0;
+}
diff --git a/libpthread/linuxthreads/sysdeps/powerpc/sigcontextinfo.h b/libpthread/linuxthreads/sysdeps/powerpc/sigcontextinfo.h
new file mode 100644
index 000000000..138a15cfa
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/powerpc/sigcontextinfo.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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 <signal.h>
+
+#define SIGCONTEXT struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS
+#define GET_PC(ctx) ((void *)((ctx)->regs->nip))
+#define GET_FRAME(ctx) (*(void **)((ctx)->regs->gpr[1]))
+#define GET_STACK(ctx) ((void *)((ctx)->regs->gpr[1]))
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))