diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-17 21:48:37 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-10-23 09:55:19 +0400 |
| commit | 8569c9140bd41089f9b6be8837ca421102714a90 (patch) | |
| tree | cd289b322b215fe2ca2530aa320febfd99388d7f /arch/um/include/shared/sysdep-ppc/sigcontext.h | |
| parent | 2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff) | |
| download | linux-8569c9140bd41089f9b6be8837ca421102714a90.tar.xz | |
x86, um: take arch/um/include/* out of the way
We can't just plop asm/* into it - userland helpers are built with it
in search path and seeing asm/* show up there suddenly would be a bad
idea.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/um/include/shared/sysdep-ppc/sigcontext.h')
| -rw-r--r-- | arch/um/include/shared/sysdep-ppc/sigcontext.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/um/include/shared/sysdep-ppc/sigcontext.h b/arch/um/include/shared/sysdep-ppc/sigcontext.h new file mode 100644 index 000000000000..f20d965de9c7 --- /dev/null +++ b/arch/um/include/shared/sysdep-ppc/sigcontext.h @@ -0,0 +1,62 @@ +/* + * 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 + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * Emacs will notice this stuff at the end of the file and automatically + * adjust the settings for this buffer only. This must remain at the end + * of the file. + * --------------------------------------------------------------------------- + * Local variables: + * c-file-style: "linux" + * End: + */ |