From 4e7e0da41e5a85991a4057615c42d9570fd8383b Mon Sep 17 00:00:00 2001 From: matt Date: Thu, 25 Sep 2003 22:46:22 +0000 Subject: [PATCH] Add siginfo signal trampoline. --- lib/libc/arch/powerpc/Makefile.inc | 4 +- lib/libc/arch/powerpc/sys/__sigtramp2.S | 56 +++++++++++++++++++++++++ 2 files changed, 58 insertions(+), 2 deletions(-) create mode 100644 lib/libc/arch/powerpc/sys/__sigtramp2.S diff --git a/lib/libc/arch/powerpc/Makefile.inc b/lib/libc/arch/powerpc/Makefile.inc index e4e222a711fb..07284d19b5b4 100644 --- a/lib/libc/arch/powerpc/Makefile.inc +++ b/lib/libc/arch/powerpc/Makefile.inc @@ -1,9 +1,9 @@ -# $NetBSD: Makefile.inc,v 1.6 2002/07/10 04:29:08 thorpej Exp $ +# $NetBSD: Makefile.inc,v 1.7 2003/09/25 22:46:22 matt Exp $ KMINCLUDES= KMSRCS= -SRCS+= __sigaction14_sigtramp.c __sigtramp1.S +SRCS+= __sigaction14_sigtramp.c __sigtramp1.S __sigtramp2.S .if (${MKSOFTFLOAT} != "no") CPPFLAGS+= -DSOFTFLOAT_NEED_FIXUNS diff --git a/lib/libc/arch/powerpc/sys/__sigtramp2.S b/lib/libc/arch/powerpc/sys/__sigtramp2.S new file mode 100644 index 000000000000..fe0c9c216f6c --- /dev/null +++ b/lib/libc/arch/powerpc/sys/__sigtramp2.S @@ -0,0 +1,56 @@ +/* $NetBSD: __sigtramp2.S,v 1.1 2003/09/25 22:46:22 matt Exp $ */ + +/*- + * Copyright (c) 2002 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#define _NOREGNAMES +#include "SYS.h" + +/* + * On entry to user space, stack and registers look like: + * + * r3 signal number + * r4 pointer to siginfo structure + * r5 pointer to ucontext structure + * r30 pointer to ucontext structure + * srr0 address of handler + * lr address of this trampoline + * + */ +ENTRY_NOPROFILE(__sigtramp_siginfo_2) + mr %r3,%r30 /* restore ucontext pointer */ + _DOSYSCALL(setcontext) /* restore machine state */ + _DOSYSCALL(exit) /* or exit with errno if failed */