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| author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
|---|---|---|
| committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
| commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
| tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/um/sys-ppc/shared/sysdep/sigcontext.h | |
| parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
| parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/um/sys-ppc/shared/sysdep/sigcontext.h')
| -rw-r--r-- | arch/um/sys-ppc/shared/sysdep/sigcontext.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/um/sys-ppc/shared/sysdep/sigcontext.h b/arch/um/sys-ppc/shared/sysdep/sigcontext.h new file mode 100644 index 00000000..b7286f0a --- /dev/null +++ b/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 + |