mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
23eeeff7be
handling clean and functional as 5.x evolves. This allows some of the nasty bandaids in the 5.x codepaths to be unwound. Encapsulate 4.x signal handling under COMPAT_FREEBSD4 (there is an anti-foot-shooting measure in place, 5.x folks need this for a while) and finish encapsulating the older stuff under COMPAT_43. Since the ancient stuff is required on alpha (longjmp(3) passes a 'struct osigcontext *' to the current sigreturn(2), instead of the 'ucontext_t *' that sigreturn is supposed to take), add a compile time check to prevent foot shooting there too. Add uniform COMPAT_43 stubs for ia64/sparc64/powerpc. Tested on: i386, alpha, ia64. Compiled on sparc64 (a few days ago). Approved by: re
114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
/* $FreeBSD$ */
|
|
/* From: NetBSD: signal.h,v 1.3 1997/04/06 08:47:43 cgd Exp */
|
|
|
|
/*
|
|
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Author: Chris G. Demetriou
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and
|
|
* its documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
#ifndef _MACHINE_SIGNAL_H_
|
|
#define _MACHINE_SIGNAL_H_
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <sys/_sigset.h>
|
|
|
|
typedef long sig_atomic_t;
|
|
|
|
#if __BSD_VISIBLE
|
|
/* portable macros for SIGFPE/ARITHTRAP */
|
|
#define FPE_INTOVF 1 /* integer overflow */
|
|
#define FPE_INTDIV 2 /* integer divide by zero */
|
|
#define FPE_FLTDIV 3 /* floating point divide by zero */
|
|
#define FPE_FLTOVF 4 /* floating point overflow */
|
|
#define FPE_FLTUND 5 /* floating point underflow */
|
|
#define FPE_FLTRES 6 /* floating point inexact result */
|
|
#define FPE_FLTINV 7 /* invalid floating point operation */
|
|
#define FPE_FLTSUB 8 /* subscript out of range */
|
|
|
|
#define BUS_SEGM_FAULT 30 /* segment protection base */
|
|
#endif
|
|
|
|
#if __XSI_VISIBLE
|
|
/*
|
|
* Minimum signal stack size. The current signal frame
|
|
* for IA-64 is 2656 bytes large.
|
|
*/
|
|
#define MINSIGSTKSZ (3072 * 4)
|
|
#endif
|
|
|
|
#if __BSD_VISIBLE
|
|
#ifndef _IA64_FPREG_DEFINED
|
|
|
|
struct ia64_fpreg {
|
|
unsigned long fpr_bits[2];
|
|
} __aligned(16);
|
|
|
|
#define _IA64_FPREG_DEFINED
|
|
|
|
#endif
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Information pushed on stack when a signal is delivered.
|
|
* This is used by the kernel to restore state following
|
|
* execution of the signal handler. It is also made available
|
|
* to the handler to allow it to restore state properly if
|
|
* a non-standard exit is performed.
|
|
*
|
|
* Note that sc_regs[] and sc_fpregs[]+sc_fpcr are inline
|
|
* representations of 'struct reg' and 'struct fpreg', respectively.
|
|
*/
|
|
|
|
#if __BSD_VISIBLE
|
|
/*
|
|
* The sequence of the fields should match those in
|
|
* mcontext_t. Keep them in sync!
|
|
*/
|
|
struct sigcontext {
|
|
struct __sigset sc_mask; /* signal mask to restore */
|
|
unsigned long sc_onstack;
|
|
unsigned long sc_flags;
|
|
unsigned long sc_nat;
|
|
unsigned long sc_sp;
|
|
unsigned long sc_ip;
|
|
unsigned long sc_cfm;
|
|
unsigned long sc_um;
|
|
unsigned long sc_ar_rsc;
|
|
unsigned long sc_ar_bsp;
|
|
unsigned long sc_ar_rnat;
|
|
unsigned long sc_ar_ccv;
|
|
unsigned long sc_ar_unat;
|
|
unsigned long sc_ar_fpsr;
|
|
unsigned long sc_ar_pfs;
|
|
unsigned long sc_pr;
|
|
unsigned long sc_br[8];
|
|
unsigned long sc_gr[32];
|
|
struct ia64_fpreg sc_fr[128];
|
|
};
|
|
#endif /* __BSD_VISIBLE */
|
|
|
|
#endif /* !_MACHINE_SIGNAL_H_*/
|