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-rw-r--r--libpthread/linuxthreads/sysdeps/mips/pt-machine.h90
-rw-r--r--libpthread/linuxthreads/sysdeps/mips/sigcontextinfo.h27
2 files changed, 117 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/sysdeps/mips/pt-machine.h b/libpthread/linuxthreads/sysdeps/mips/pt-machine.h
new file mode 100644
index 000000000..527392308
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/mips/pt-machine.h
@@ -0,0 +1,90 @@
+/* Machine-dependent pthreads configuration and inline functions.
+
+ Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ralf Baechle <ralf@gnu.ai.mit.edu>.
+ Based on the Alpha version by Richard Henderson <rth@tamu.edu>.
+
+ 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.
+
+ TODO: This version makes use of MIPS ISA 2 features. It won't
+ work on ISA 1. These machines will have to take the overhead of
+ a sysmips(MIPS_ATOMIC_SET, ...) syscall which isn't implemented
+ yet correctly. There is however a better solution for R3000
+ uniprocessor machines possible. */
+
+#ifndef PT_EI
+# define PT_EI extern inline
+#endif
+
+
+/* Spinlock implementation; required. */
+PT_EI long int
+testandset (int *spinlock)
+{
+ long int ret, temp;
+
+ __asm__ __volatile__(
+ "# Inline spinlock test & set\n\t"
+ ".set\tmips2\n"
+ "1:\tll\t%0,%3\n\t"
+ "bnez\t%0,2f\n\t"
+ ".set\tnoreorder\n\t"
+ "li\t%1,1\n\t"
+ ".set\treorder\n\t"
+ "sc\t%1,%2\n\t"
+ "beqz\t%1,1b\n"
+ "2:\t.set\tmips0\n\t"
+ "/* End spinlock test & set */"
+ : "=&r"(ret), "=&r" (temp), "=m"(*spinlock)
+ : "m"(*spinlock)
+ : "memory");
+
+ return ret;
+}
+
+
+/* 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__ ("$29");
+
+
+/* Compare-and-swap for semaphores. */
+
+#define HAS_COMPARE_AND_SWAP
+PT_EI int
+__compare_and_swap (long int *p, long int oldval, long int newval)
+{
+ long ret;
+
+ __asm__ __volatile__ (
+ "/* Inline compare & swap */\n\t"
+ ".set\tmips2\n"
+ "1:\tll\t%0,%4\n\t"
+ ".set\tnoreorder\n\t"
+ "bne\t%0,%2,2f\n\t"
+ "move\t%0,%3\n\t"
+ ".set\treorder\n\t"
+ "sc\t%0,%1\n\t"
+ "beqz\t%0,1b\n"
+ "2:\t.set\tmips0\n\t"
+ "/* End compare & swap */"
+ : "=&r"(ret), "=m"(*p)
+ : "r"(oldval), "r"(newval), "m"(*p));
+
+ return ret;
+}
diff --git a/libpthread/linuxthreads/sysdeps/mips/sigcontextinfo.h b/libpthread/linuxthreads/sysdeps/mips/sigcontextinfo.h
new file mode 100644
index 000000000..a51c6f043
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/mips/sigcontextinfo.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Andreas Jaeger <aj@suse.de>, 2000.
+
+ 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. */
+
+
+#define SIGCONTEXT unsigned long _code, struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS _code,
+#define GET_PC(ctx) ((void *) ctx->sc_pc)
+#define GET_FRAME(ctx) ((void *) ctx->sc_regs[30])
+#define GET_STACK(ctx) ((void *) ctx->sc_regs[29])
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))