projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Copyright (C) 1991, 1992 Linus Torvalds | |
| 7 | * Copyright (C) 1994 - 2000 Ralf Baechle | |
| 8 | * Copyright (C) 1999, 2000 Silicon Graphics, Inc. | |
| 9 | */ | |
| 10 | ||
| c3fc4ab3 FBH |
11 | #ifndef __SIGNAL_COMMON_H |
| 12 | #define __SIGNAL_COMMON_H | |
| e50c0a8f | 13 | |
| c0b9bae9 FBH |
14 | /* |
| 15 | * Horribly complicated - with the bloody RM9000 workarounds enabled | |
| 16 | * the signal trampolines is moving to the end of the structure so we can | |
| 17 | * increase the alignment without breaking software compatibility. | |
| 18 | */ | |
| 19 | #if ICACHE_REFILLS_WORKAROUND_WAR == 0 | |
| 20 | ||
| 21 | struct sigframe { | |
| 22 | u32 sf_ass[4]; /* argument save space for o32 */ | |
| 23 | u32 sf_code[2]; /* signal trampoline */ | |
| 24 | struct sigcontext sf_sc; | |
| 25 | sigset_t sf_mask; | |
| 26 | }; | |
| 27 | ||
| 28 | #else /* ICACHE_REFILLS_WORKAROUND_WAR */ | |
| 29 | ||
| 30 | struct sigframe { | |
| 31 | u32 sf_ass[4]; /* argument save space for o32 */ | |
| 32 | u32 sf_pad[2]; | |
| 33 | struct sigcontext sf_sc; /* hw context */ | |
| 34 | sigset_t sf_mask; | |
| 35 | u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */ | |
| 36 | }; | |
| 37 | ||
| 38 | #endif /* !ICACHE_REFILLS_WORKAROUND_WAR */ | |
| 39 | ||
| c3fc4ab3 FBH |
40 | /* |
| 41 | * handle hardware context | |
| 42 | */ | |
| 43 | extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *); | |
| 44 | extern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *); | |
| 1da177e4 LT |
45 | |
| 46 | /* | |
| 47 | * Determine which stack to use.. | |
| 48 | */ | |
| c3fc4ab3 FBH |
49 | extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, |
| 50 | size_t frame_size); | |
| 51 | /* | |
| 52 | * install trampoline code to get back from the sig handler | |
| 53 | */ | |
| 54 | extern int install_sigtramp(unsigned int __user *tramp, unsigned int syscall); | |
| 02416dcf | 55 | |
| c3fc4ab3 | 56 | #endif /* __SIGNAL_COMMON_H */ |