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| author | Kevin | 2014-11-15 09:58:27 +0800 |
|---|---|---|
| committer | Kevin | 2014-11-15 09:58:27 +0800 |
| commit | 392e8802486cb573b916e746010e141a75f507e6 (patch) | |
| tree | 50029aca02c81f087b90336e670b44e510782330 /ANDROID_3.4.5/arch/um/sys-ppc/shared/sysdep/sigcontext.h | |
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init android origin source code
Diffstat (limited to 'ANDROID_3.4.5/arch/um/sys-ppc/shared/sysdep/sigcontext.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/um/sys-ppc/shared/sysdep/sigcontext.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/arch/um/sys-ppc/shared/sysdep/sigcontext.h b/ANDROID_3.4.5/arch/um/sys-ppc/shared/sysdep/sigcontext.h new file mode 100644 index 00000000..b7286f0a --- /dev/null +++ b/ANDROID_3.4.5/arch/um/sys-ppc/shared/sysdep/sigcontext.h @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2000 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#ifndef __SYS_SIGCONTEXT_PPC_H +#define __SYS_SIGCONTEXT_PPC_H + +#define DSISR_WRITE 0x02000000 + +#define SC_FAULT_ADDR(sc) ({ \ + struct sigcontext *_sc = (sc); \ + long retval = -1; \ + switch (_sc->regs->trap) { \ + case 0x300: \ + /* data exception */ \ + retval = _sc->regs->dar; \ + break; \ + case 0x400: \ + /* instruction exception */ \ + retval = _sc->regs->nip; \ + break; \ + default: \ + panic("SC_FAULT_ADDR: unhandled trap type\n"); \ + } \ + retval; \ + }) + +#define SC_FAULT_WRITE(sc) ({ \ + struct sigcontext *_sc = (sc); \ + long retval = -1; \ + switch (_sc->regs->trap) { \ + case 0x300: \ + /* data exception */ \ + retval = !!(_sc->regs->dsisr & DSISR_WRITE); \ + break; \ + case 0x400: \ + /* instruction exception: not a write */ \ + retval = 0; \ + break; \ + default: \ + panic("SC_FAULT_ADDR: unhandled trap type\n"); \ + } \ + retval; \ + }) + +#define SC_IP(sc) ((sc)->regs->nip) +#define SC_SP(sc) ((sc)->regs->gpr[1]) +#define SEGV_IS_FIXABLE(sc) (1) + +#endif + |