From 1041ea6f68276d65c3426df3ee3a6c5a396ab704 Mon Sep 17 00:00:00 2001 From: rsc Date: Tue, 19 Jul 2005 11:43:01 +0000 Subject: stolen from freebsd; maybe work on openbsd? --- src/libthread/386-ucontext.h | 118 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 src/libthread/386-ucontext.h (limited to 'src/libthread/386-ucontext.h') diff --git a/src/libthread/386-ucontext.h b/src/libthread/386-ucontext.h new file mode 100644 index 00000000..87edc797 --- /dev/null +++ b/src/libthread/386-ucontext.h @@ -0,0 +1,118 @@ + + +extern int getcontext(ucontext_t*); +extern void setcontext(ucontext_t*); +extern int swapcontext(ucontext_t*, ucontext_t*); +extern void makecontext(ucontext_t*, void(*)(), int, ...); + +/*- + * Copyright (c) 1999 Marcel Moolenaar + * 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 + * in this position and unchanged. + * 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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: src/sys/sys/ucontext.h,v 1.4 1999/10/11 20:33:17 luoqi Exp $ + */ + +/* #include */ + +/*- + * Copyright (c) 1999 Marcel Moolenaar + * 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 + * in this position and unchanged. + * 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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: src/sys/i386/include/ucontext.h,v 1.4 1999/10/11 20:33:09 luoqi Exp $ + */ + +typedef struct __mcontext { + /* + * The first 20 fields must match the definition of + * sigcontext. So that we can support sigcontext + * and ucontext_t at the same time. + */ + int mc_onstack; /* XXX - sigcontext compat. */ + int mc_gs; + int mc_fs; + int mc_es; + int mc_ds; + int mc_edi; + int mc_esi; + int mc_ebp; + int mc_isp; + int mc_ebx; + int mc_edx; + int mc_ecx; + int mc_eax; + int mc_trapno; + int mc_err; + int mc_eip; + int mc_cs; + int mc_eflags; + int mc_esp; /* machine state */ + int mc_ss; + + int mc_fpregs[28]; /* env87 + fpacc87 + u_long */ + int __spare__[17]; +} mcontext_t; + +typedef struct __ucontext { + /* + * Keep the order of the first two fields. Also, + * keep them the first two fields in the structure. + * This way we can have a union with struct + * sigcontext and ucontext_t. This allows us to + * support them both at the same time. + * note: the union is not defined, though. + */ + sigset_t uc_sigmask; + mcontext_t uc_mcontext; + + struct __ucontext *uc_link; + stack_t uc_stack; + int __spare__[8]; +} ucontext_t; + + -- cgit v1.2.3