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v0.8.1
https://github.com/torvalds/linux
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Tip revision: ffb217a13a2eaf6d5bd974fc83036a53ca69f1e2 authored by Linus Torvalds on 06 March 2022, 22:28:31 UTC
Linux 5.17-rc7
Tip revision: ffb217a
rt_sigframe.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_PARISC_RT_SIGFRAME_H
#define _ASM_PARISC_RT_SIGFRAME_H

#define SIGRETURN_TRAMP 4
#define SIGRESTARTBLOCK_TRAMP 5 
#define TRAMP_SIZE (SIGRETURN_TRAMP + SIGRESTARTBLOCK_TRAMP)

struct rt_sigframe {
	/* XXX: Must match trampoline size in arch/parisc/kernel/signal.c 
	        Secondary to that it must protect the ERESTART_RESTARTBLOCK
		trampoline we left on the stack (we were bad and didn't 
		change sp so we could run really fast.) */
	unsigned int tramp[TRAMP_SIZE];
	struct siginfo info;
	struct ucontext uc;
};

#define	SIGFRAME		128
#define FUNCTIONCALLFRAME	96
#define PARISC_RT_SIGFRAME_SIZE					\
	(((sizeof(struct rt_sigframe) + FUNCTIONCALLFRAME) + SIGFRAME) & -SIGFRAME)

#endif
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