cregit-Linux how code gets into the kernel

Release 4.8 arch/arm64/include/asm/traps.h

/*
 * Based on arch/arm/include/asm/traps.h
 *
 * Copyright (C) 2012 ARM Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef __ASM_TRAP_H

#define __ASM_TRAP_H

#include <linux/list.h>

struct pt_regs;


struct undef_hook {
	
struct list_head node;
	
u32 instr_mask;
	
u32 instr_val;
	
u64 pstate_mask;
	
u64 pstate_val;
	
int (*fn)(struct pt_regs *regs, u32 instr);
};

void register_undef_hook(struct undef_hook *hook);
void unregister_undef_hook(struct undef_hook *hook);

void arm64_notify_segfault(struct pt_regs *regs, unsigned long addr);

#ifdef CONFIG_FUNCTION_GRAPH_TRACER

static inline int __in_irqentry_text(unsigned long ptr) { extern char __irqentry_text_start[]; extern char __irqentry_text_end[]; return ptr >= (unsigned long)&__irqentry_text_start && ptr < (unsigned long)&__irqentry_text_end; }

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jungseok leejungseok lee40100.00%1100.00%
Total40100.00%1100.00%

#else
static inline int __in_irqentry_text(unsigned long ptr) { return 0; }

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PersonTokensPropCommitsCommitProp
jungseok leejungseok lee14100.00%1100.00%
Total14100.00%1100.00%

#endif
static inline int in_exception_text(unsigned long ptr) { extern char __exception_text_start[]; extern char __exception_text_end[]; int in; in = ptr >= (unsigned long)&__exception_text_start && ptr < (unsigned long)&__exception_text_end; return in ? : __in_irqentry_text(ptr); }

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catalin marinascatalin marinas3973.58%150.00%
jungseok leejungseok lee1426.42%150.00%
Total53100.00%2100.00%

#endif

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PersonTokensPropCommitsCommitProp
jungseok leejungseok lee7538.27%125.00%
punit agrawalpunit agrawal6030.61%125.00%
catalin marinascatalin marinas4824.49%125.00%
andre przywaraandre przywara136.63%125.00%
Total196100.00%4100.00%
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