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https://github.com/kanjitalk755/macemu.git
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Move sigregs handling to dedicated header
This commit is contained in:
gbeauche
parent
d80a943daf
commit
29207d9cf2
@ -109,6 +109,7 @@
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#include "user_strings.h"
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#include "vm_alloc.h"
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#include "sigsegv.h"
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#include "sigregs.h"
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#define DEBUG 0
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#include "debug.h"
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@ -167,94 +168,6 @@ const uintptr RAM_BASE = 0x10000000; // Base address of RAM
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const uint32 SIG_STACK_SIZE = 0x10000; // Size of signal stack
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#if !EMULATED_PPC
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struct sigregs {
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uint32 nip;
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uint32 link;
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uint32 ctr;
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uint32 msr;
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uint32 xer;
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uint32 ccr;
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uint32 gpr[32];
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};
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#if defined(__linux__)
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#include <sys/ucontext.h>
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#define MACHINE_REGISTERS(scp) ((machine_regs *)(((ucontext_t *)scp)->uc_mcontext.regs))
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struct machine_regs : public pt_regs
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{
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u_long & cr() { return pt_regs::ccr; }
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uint32 cr() const { return pt_regs::ccr; }
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uint32 lr() const { return pt_regs::link; }
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uint32 ctr() const { return pt_regs::ctr; }
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uint32 xer() const { return pt_regs::xer; }
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uint32 msr() const { return pt_regs::msr; }
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uint32 dar() const { return pt_regs::dar; }
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u_long & pc() { return pt_regs::nip; }
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uint32 pc() const { return pt_regs::nip; }
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u_long & gpr(int i) { return pt_regs::gpr[i]; }
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uint32 gpr(int i) const { return pt_regs::gpr[i]; }
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};
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#endif
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#if defined(__NetBSD__)
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#include <sys/ucontext.h>
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#define MACHINE_REGISTERS(scp) ((machine_regs *)&(((ucontext_t *)scp)->uc_mcontext))
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struct machine_regs : public mcontext_t
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{
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long & cr() { return __gregs[_REG_CR]; }
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uint32 cr() const { return __gregs[_REG_CR]; }
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uint32 lr() const { return __gregs[_REG_LR]; }
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uint32 ctr() const { return __gregs[_REG_CTR]; }
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uint32 xer() const { return __gregs[_REG_XER]; }
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uint32 msr() const { return __gregs[_REG_MSR]; }
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uint32 dar() const { return (uint32)(((siginfo_t *)(((unsigned long)this) - offsetof(ucontext_t, uc_mcontext))) - 1)->si_addr; } /* HACK */
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long & pc() { return __gregs[_REG_PC]; }
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uint32 pc() const { return __gregs[_REG_PC]; }
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long & gpr(int i) { return __gregs[_REG_R0 + i]; }
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uint32 gpr(int i) const { return __gregs[_REG_R0 + i]; }
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};
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#endif
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#if defined(__APPLE__) && defined(__MACH__)
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#include <sys/signal.h>
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extern "C" int sigaltstack(const struct sigaltstack *ss, struct sigaltstack *oss);
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#include <sys/ucontext.h>
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#define MACHINE_REGISTERS(scp) ((machine_regs *)(((ucontext_t *)scp)->uc_mcontext))
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struct machine_regs : public mcontext
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{
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uint32 & cr() { return ss.cr; }
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uint32 cr() const { return ss.cr; }
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uint32 lr() const { return ss.lr; }
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uint32 ctr() const { return ss.ctr; }
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uint32 xer() const { return ss.xer; }
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uint32 msr() const { return ss.srr1; }
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uint32 dar() const { return es.dar; }
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uint32 & pc() { return ss.srr0; }
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uint32 pc() const { return ss.srr0; }
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uint32 & gpr(int i) { return (&ss.r0)[i]; }
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uint32 gpr(int i) const { return (&ss.r0)[i]; }
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};
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#endif
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static void build_sigregs(sigregs *srp, machine_regs *mrp)
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{
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srp->nip = mrp->pc();
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srp->link = mrp->lr();
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srp->ctr = mrp->ctr();
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srp->msr = mrp->msr();
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srp->xer = mrp->xer();
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srp->ccr = mrp->cr();
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for (int i = 0; i < 32; i++)
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srp->gpr[i] = mrp->gpr(i);
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}
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#endif
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// Global variables (exported)
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#if !EMULATED_PPC
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void *TOC = NULL; // Pointer to Thread Local Storage (r2)
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118
SheepShaver/src/Unix/sigregs.h
Normal file
118
SheepShaver/src/Unix/sigregs.h
Normal file
@ -0,0 +1,118 @@
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/*
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* sigregs.h - Extract machine registers from a signal frame
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*
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* SheepShaver (C) 1997-2005 Christian Bauer and Marc Hellwig
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef SIGREGS_H
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#define SIGREGS_H
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#ifndef EMULATED_PPC
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// Common representation of machine registers
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struct sigregs {
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uint32 nip;
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uint32 link;
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uint32 ctr;
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uint32 msr;
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uint32 xer;
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uint32 ccr;
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uint32 gpr[32];
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};
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// Extract machine registers from Linux signal frame
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#if defined(__linux__)
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#include <sys/ucontext.h>
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#define MACHINE_REGISTERS(scp) ((machine_regs *)(((ucontext_t *)scp)->uc_mcontext.regs))
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struct machine_regs : public pt_regs
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{
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u_long & cr() { return pt_regs::ccr; }
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uint32 cr() const { return pt_regs::ccr; }
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uint32 lr() const { return pt_regs::link; }
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uint32 ctr() const { return pt_regs::ctr; }
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uint32 xer() const { return pt_regs::xer; }
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uint32 msr() const { return pt_regs::msr; }
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uint32 dar() const { return pt_regs::dar; }
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u_long & pc() { return pt_regs::nip; }
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uint32 pc() const { return pt_regs::nip; }
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u_long & gpr(int i) { return pt_regs::gpr[i]; }
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uint32 gpr(int i) const { return pt_regs::gpr[i]; }
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};
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#endif
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// Extract machine registers from NetBSD signal frame
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#if defined(__NetBSD__)
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#include <sys/ucontext.h>
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#define MACHINE_REGISTERS(scp) ((machine_regs *)&(((ucontext_t *)scp)->uc_mcontext))
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struct machine_regs : public mcontext_t
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{
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long & cr() { return __gregs[_REG_CR]; }
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uint32 cr() const { return __gregs[_REG_CR]; }
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uint32 lr() const { return __gregs[_REG_LR]; }
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uint32 ctr() const { return __gregs[_REG_CTR]; }
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uint32 xer() const { return __gregs[_REG_XER]; }
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uint32 msr() const { return __gregs[_REG_MSR]; }
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uint32 dar() const { return (uint32)(((siginfo_t *)(((unsigned long)this) - offsetof(ucontext_t, uc_mcontext))) - 1)->si_addr; } /* HACK */
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long & pc() { return __gregs[_REG_PC]; }
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uint32 pc() const { return __gregs[_REG_PC]; }
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long & gpr(int i) { return __gregs[_REG_R0 + i]; }
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uint32 gpr(int i) const { return __gregs[_REG_R0 + i]; }
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};
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#endif
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// Extract machine registers from Darwin signal frame
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#if defined(__APPLE__) && defined(__MACH__)
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#include <sys/signal.h>
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extern "C" int sigaltstack(const struct sigaltstack *ss, struct sigaltstack *oss);
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#include <sys/ucontext.h>
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#define MACHINE_REGISTERS(scp) ((machine_regs *)(((ucontext_t *)scp)->uc_mcontext))
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struct machine_regs : public mcontext
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{
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uint32 & cr() { return ss.cr; }
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uint32 cr() const { return ss.cr; }
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uint32 lr() const { return ss.lr; }
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uint32 ctr() const { return ss.ctr; }
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uint32 xer() const { return ss.xer; }
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uint32 msr() const { return ss.srr1; }
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uint32 dar() const { return es.dar; }
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uint32 & pc() { return ss.srr0; }
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uint32 pc() const { return ss.srr0; }
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uint32 & gpr(int i) { return (&ss.r0)[i]; }
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uint32 gpr(int i) const { return (&ss.r0)[i]; }
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};
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#endif
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// Convert system-dependent machine registers to generic sigregs
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static void build_sigregs(sigregs *srp, machine_regs *mrp)
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{
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srp->nip = mrp->pc();
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srp->link = mrp->lr();
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srp->ctr = mrp->ctr();
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srp->msr = mrp->msr();
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srp->xer = mrp->xer();
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srp->ccr = mrp->cr();
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for (int i = 0; i < 32; i++)
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srp->gpr[i] = mrp->gpr(i);
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}
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#endif
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#endif /* SIGREGS_H */
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