| Current Path : /usr/src/sys/amd64/amd64/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/sys/amd64/amd64/sigtramp.S |
/*- * Copyright (c) 2003 Peter Wemm <peter@freeBSD.org> * All rights reserved. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * * $FreeBSD: release/9.1.0/sys/amd64/amd64/sigtramp.S 114349 2003-05-01 01:05:25Z peter $ */ #include <sys/syscall.h> #include <machine/asmacros.h> #include "assym.s" .text /********************************************************************** * * Signal trampoline, copied to top of user stack * */ NON_GPROF_ENTRY(sigcode) call *SIGF_HANDLER(%rsp) /* call signal handler */ lea SIGF_UC(%rsp),%rdi /* get ucontext_t */ pushq $0 /* junk to fake return addr. */ movq $SYS_sigreturn,%rax syscall /* enter kernel with args */ 0: hlt /* trap priviliged instruction */ jmp 0b ALIGN_TEXT esigcode: .data .globl szsigcode szsigcode: .long esigcode-sigcode