/*- * Copyright (c) 1999 Marcel Moolenaar * Copyright (c) 2003 Peter Wemm * 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. * * $FreeBSD$ */ struct ia32_sigaltstack { u_int32_t ss_sp; /* signal stack base */ u_int32_t ss_size; /* signal stack length */ int ss_flags; /* SS_DISABLE and/or SS_ONSTACK */ }; struct ia32_mcontext { u_int32_t mc_onstack; /* XXX - sigcontext compat. */ u_int32_t mc_gs; /* machine state (struct trapframe) */ u_int32_t mc_fs; u_int32_t mc_es; u_int32_t mc_ds; u_int32_t mc_edi; u_int32_t mc_esi; u_int32_t mc_ebp; u_int32_t mc_isp; u_int32_t mc_ebx; u_int32_t mc_edx; u_int32_t mc_ecx; u_int32_t mc_eax; u_int32_t mc_trapno; u_int32_t mc_err; u_int32_t mc_eip; u_int32_t mc_cs; u_int32_t mc_eflags; u_int32_t mc_esp; u_int32_t mc_ss; u_int32_t mc_len; /* sizeof(struct ia32_mcontext) */ /* We use the same values for fpformat and ownedfp */ u_int32_t mc_fpformat; u_int32_t mc_ownedfp; u_int32_t mc_spare1[1]; /* align next field to 16 bytes */ /* * See for the internals of mc_fpstate[]. */ u_int32_t mc_fpstate[128] __aligned(16); u_int32_t mc_spare2[8]; }; struct ia32_ucontext { sigset_t uc_sigmask; struct ia32_mcontext uc_mcontext; u_int32_t uc_link; struct ia32_sigaltstack uc_stack; u_int32_t uc_flags; u_int32_t __spare__[4]; }; #if defined(COMPAT_FREEBSD4) struct ia32_mcontext4 { u_int32_t mc_onstack; /* XXX - sigcontext compat. */ u_int32_t mc_gs; /* machine state (struct trapframe) */ u_int32_t mc_fs; u_int32_t mc_es; u_int32_t mc_ds; u_int32_t mc_edi; u_int32_t mc_esi; u_int32_t mc_ebp; u_int32_t mc_isp; u_int32_t mc_ebx; u_int32_t mc_edx; u_int32_t mc_ecx; u_int32_t mc_eax; u_int32_t mc_trapno; u_int32_t mc_err; u_int32_t mc_eip; u_int32_t mc_cs; u_int32_t mc_eflags; u_int32_t mc_esp; u_int32_t mc_ss; u_int32_t mc_fpregs[28]; u_int32_t __spare__[17]; }; struct ia32_ucontext4 { sigset_t uc_sigmask; struct ia32_mcontext4 uc_mcontext; u_int32_t uc_link; struct ia32_sigaltstack uc_stack; u_int32_t __spare__[8]; }; #endif #ifdef COMPAT_FREEBSD3 struct ia32_sigcontext3 { u_int32_t sc_onstack; u_int32_t sc_mask; u_int32_t sc_esp; u_int32_t sc_ebp; u_int32_t sc_isp; u_int32_t sc_eip; u_int32_t sc_eflags; u_int32_t sc_es; u_int32_t sc_ds; u_int32_t sc_cs; u_int32_t sc_ss; u_int32_t sc_edi; u_int32_t sc_esi; u_int32_t sc_ebx; u_int32_t sc_edx; u_int32_t sc_ecx; u_int32_t sc_eax; u_int32_t sc_gs; u_int32_t sc_fs; u_int32_t sc_trapno; u_int32_t sc_err; }; #endif /* * Signal frames, arguments passed to application signal handlers. */ union ia32_sigval { int sigval_int; u_int32_t sigval_ptr; }; struct ia32_siginfo { int si_signo; /* signal number */ int si_errno; /* errno association */ int si_code; /* signal code */ int32_t si_pid; /* sending process */ u_int32_t si_uid; /* sender's ruid */ int si_status; /* exit value */ u_int32_t si_addr; /* faulting instruction */ union ia32_sigval si_value; /* signal value */ int32_t si_band; /* band event for SIGPOLL */ int __spare__[7]; /* gimme some slack */ }; #ifdef COMPAT_FREEBSD4 struct ia32_sigframe4 { u_int32_t sf_signum; u_int32_t sf_siginfo; /* code or pointer to sf_si */ u_int32_t sf_ucontext; /* points to sf_uc */ u_int32_t sf_addr; /* undocumented 4th arg */ u_int32_t sf_ah; /* action/handler pointer */ struct ia32_ucontext4 sf_uc; /* = *sf_ucontext */ struct ia32_siginfo sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ }; #endif struct ia32_sigframe { u_int32_t sf_signum; u_int32_t sf_siginfo; /* code or pointer to sf_si */ u_int32_t sf_ucontext; /* points to sf_uc */ u_int32_t sf_addr; /* undocumented 4th arg */ u_int32_t sf_ah; /* action/handler pointer */ /* Beware, hole due to ucontext being 16 byte aligned! */ struct ia32_ucontext sf_uc; /* = *sf_ucontext */ struct ia32_siginfo sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ }; #ifdef COMPAT_FREEBSD3 struct ia32_siginfo3 { struct ia32_sigcontext3 si_sc; int si_signo; int si_code; union ia32_sigval si_value; }; struct ia32_sigframe3 { int sf_signum; u_int32_t sf_arg2; /* int or siginfo_t */ u_int32_t sf_scp; u_int32_t sf_addr; u_int32_t sf_ah; /* action/handler pointer */ struct ia32_siginfo3 sf_siginfo; }; #endif struct ksiginfo; extern char ia32_sigcode[]; extern char freebsd4_ia32_sigcode[]; extern int sz_ia32_sigcode; extern int sz_freebsd4_ia32_sigcode; extern void ia32_sendsig(sig_t, struct ksiginfo *, sigset_t *); extern void ia32_setregs(struct thread *td, u_long entry, u_long stack, u_long ps_strings); extern void siginfo_to_ia32siginfo(siginfo_t *src, struct ia32_siginfo *dst);