forked from luck/tmp_suning_uos_patched
c0b9bae9d1
This patch makes 'struct sigframe' declaration avalaible for all signals code. It allows signal32 to not have its own declaration. This patch also removes all ICACHE_REFILLS_WORKAROUND_WAR tests in structure declaration and hopefully make them more readable. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1991, 1992 Linus Torvalds
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* Copyright (C) 1994 - 2000 Ralf Baechle
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* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
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*/
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#ifndef __SIGNAL_COMMON_H
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#define __SIGNAL_COMMON_H
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/*
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* Horribly complicated - with the bloody RM9000 workarounds enabled
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* the signal trampolines is moving to the end of the structure so we can
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* increase the alignment without breaking software compatibility.
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*/
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#if ICACHE_REFILLS_WORKAROUND_WAR == 0
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struct sigframe {
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u32 sf_ass[4]; /* argument save space for o32 */
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u32 sf_code[2]; /* signal trampoline */
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struct sigcontext sf_sc;
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sigset_t sf_mask;
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};
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#else /* ICACHE_REFILLS_WORKAROUND_WAR */
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struct sigframe {
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u32 sf_ass[4]; /* argument save space for o32 */
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u32 sf_pad[2];
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struct sigcontext sf_sc; /* hw context */
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sigset_t sf_mask;
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u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */
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};
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#endif /* !ICACHE_REFILLS_WORKAROUND_WAR */
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/*
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* handle hardware context
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*/
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extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *);
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extern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *);
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/*
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* Determine which stack to use..
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*/
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extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
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size_t frame_size);
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/*
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* install trampoline code to get back from the sig handler
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*/
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extern int install_sigtramp(unsigned int __user *tramp, unsigned int syscall);
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#endif /* __SIGNAL_COMMON_H */
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