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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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* SheepShaver (C) 1997-2008 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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// 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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#if __DARWIN_UNIX03 |
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#define __(x) __CONCAT(__,x) |
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#else |
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#define __(x) x |
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#endif |
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#include <sys/ucontext.h> |
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#if __DARWIN_UNIX03 |
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struct machine_regs : public __darwin_mcontext |
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#else |
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struct machine_regs : public mcontext |
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#endif |
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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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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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