| * Copyright (C) 2000 Jeff Dike (jdike@karaya.com) |
| #ifndef __SYS_SIGCONTEXT_PPC_H |
| #define __SYS_SIGCONTEXT_PPC_H |
| #define DSISR_WRITE 0x02000000 |
| #define SC_FAULT_ADDR(sc) ({ \ |
| struct sigcontext *_sc = (sc); \ |
| switch (_sc->regs->trap) { \ |
| retval = _sc->regs->dar; \ |
| /* instruction exception */ \ |
| retval = _sc->regs->nip; \ |
| panic("SC_FAULT_ADDR: unhandled trap type\n"); \ |
| #define SC_FAULT_WRITE(sc) ({ \ |
| struct sigcontext *_sc = (sc); \ |
| switch (_sc->regs->trap) { \ |
| retval = !!(_sc->regs->dsisr & DSISR_WRITE); \ |
| /* instruction exception: not a write */ \ |
| panic("SC_FAULT_ADDR: unhandled trap type\n"); \ |
| #define SC_IP(sc) ((sc)->regs->nip) |
| #define SC_SP(sc) ((sc)->regs->gpr[1]) |
| #define SEGV_IS_FIXABLE(sc) (1) |