/* $NetBSD: frame.h,v 1.41 2021/12/26 16:08:20 andvar Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum. * * 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 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. */ /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * 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. Neither the name of the University 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 REGENTS 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 REGENTS 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. * * @(#)frame.h 5.2 (Berkeley) 1/18/91 */ #ifndef _I386_FRAME_H_ #define _I386_FRAME_H_ #include <sys/signal.h> /* * System stack frames. */ /* * Exception/Trap Stack Frame */ struct trapframe { uint16_t tf_gs; uint16_t tf_gs_pad; uint16_t tf_fs; uint16_t tf_fs_pad; uint16_t tf_es; uint16_t tf_es_pad; uint16_t tf_ds; uint16_t tf_ds_pad; int tf_edi; int tf_esi; int tf_ebp; int tf_ebx; int tf_edx; int tf_ecx; int tf_eax; int tf_trapno; /* below portion defined in 386 hardware */ int tf_err; int tf_eip; int tf_cs; int tf_eflags; /* below used when transitting rings (e.g. user to kernel) */ int tf_esp; int tf_ss; }; /* * Interrupt stack frame */ struct intrframe { int if_ppl; int if_gs; int if_fs; int if_es; int if_ds; int if_edi; int if_esi; int if_ebp; int if_ebx; int if_edx; int if_ecx; int if_eax; uint32_t __if_trapno; /* for compat with trap frame - trapno */ uint32_t __if_err; /* for compat with trap frame - err */ /* below portion defined in 386 hardware */ int if_eip; int if_cs; int if_eflags; /* below only when transitting rings (e.g. user to kernel) */ int if_esp; int if_ss; }; #ifdef XEN /* * need arch independent way to access ip and cs from intrframe */ #define _INTRFRAME_CS if_cs #define _INTRFRAME_IP if_eip #endif /* * Stack frame inside cpu_switchto() */ struct switchframe { int sf_edi; int sf_esi; int sf_ebx; int sf_eip; }; #ifdef _KERNEL /* * Old-style signal frame */ struct sigframe_sigcontext { int sf_ra; /* return address for handler */ int sf_signum; /* "signum" argument for handler */ int sf_code; /* "code" argument for handler */ struct sigcontext *sf_scp; /* "scp" argument for handler */ struct sigcontext sf_sc; /* actual saved context */ }; #endif /* * New-style signal frame */ struct sigframe_siginfo { int sf_ra; /* return address for handler */ int sf_signum; /* "signum" argument for handler */ siginfo_t *sf_sip; /* "sip" argument for handler */ ucontext_t *sf_ucp; /* "ucp" argument for handler */ siginfo_t sf_si; /* actual saved siginfo */ ucontext_t sf_uc; /* actual saved ucontext */ }; #ifdef _KERNEL void *getframe(struct lwp *, int, int *); void buildcontext(struct lwp *, int, void *, void *); void sendsig_sigcontext(const ksiginfo_t *, const sigset_t *); #define lwp_trapframe(l) ((l)->l_md.md_regs) #endif #endif /* _I386_FRAME_H_ */
