diff options
Diffstat (limited to 'sys/i386/include/sigframe.h')
-rw-r--r-- | sys/i386/include/sigframe.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/sys/i386/include/sigframe.h b/sys/i386/include/sigframe.h new file mode 100644 index 0000000..9c47915 --- /dev/null +++ b/sys/i386/include/sigframe.h @@ -0,0 +1,86 @@ +/*- + * 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. + * + * $FreeBSD$ + */ + +#ifndef _MACHINE_SIGFRAME_H_ +#define _MACHINE_SIGFRAME_H_ 1 + +struct osigframe { + /* + * The first three members may be used by applications. + */ + + register_t sf_signum; + + /* + * Either 'int' for old-style FreeBSD handler or 'siginfo_t *' + * pointing to sf_siginfo for SA_SIGINFO handlers. + */ + register_t sf_arg2; + + /* Points to sf_siginfo.si_sc. */ + register_t sf_scp; + + /* + * The following arguments are not constrained by the + * function call protocol. + * Applications are not supposed to access these members, + * except using the pointers we provide in the first three + * arguments. + */ + + char *sf_addr; + + union { + __osiginfohandler_t *sf_action; + __sighandler_t *sf_handler; + } sf_ahu; + + /* In the SA_SIGINFO case, sf_arg2 points here. */ + osiginfo_t sf_siginfo; +}; + +struct sigframe { + /* + * The first three members may be used by applications. + */ + register_t sf_signum; + register_t sf_siginfo; /* code or pointer to sf_si */ + register_t sf_ucontext; /* points to sf_uc */ + register_t __spare__; /* Align sf_ahu */ + union { + __siginfohandler_t *sf_action; + __sighandler_t *sf_handler; + } sf_ahu; + register_t sf_sigreturn; /* sigreturn to use */ + siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ + ucontext_t sf_uc; /* = *sf_ucontext */ +}; + +#endif /* _MACHINE_SIGFRAME_H_ */ |