linux-stable/arch/powerpc/include/asm/stacktrace.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Stack trace functions.
 *
 * Copyright 2018, Murilo Opsfelder Araujo, IBM Corporation.
 */

#ifndef _ASM_POWERPC_STACKTRACE_H
#define _ASM_POWERPC_STACKTRACE_H

void show_user_instructions(struct pt_regs *regs);

#endif /* _ASM_POWERPC_STACKTRACE_H */
powerpc: Add show_user_instructions() show_user_instructions() is a slightly modified version of show_instructions() that allows userspace instruction dump. This will be useful within show_signal_msg() to dump userspace instructions of the faulty location. Here is a sample of what show_user_instructions() outputs: pandafault[10850]: code: 4bfffeec 4bfffee8 3c401002 38427f00 fbe1fff8 f821ffc1 7c3f0b78 3d22fffe pandafault[10850]: code: 392988d0 f93f0020 e93f0020 39400048 <99490000> 39200000 7d234b78 383f0040 The current->comm and current->pid printed can serve as a glue that links the instructions dump to its originator, allowing messages to be interleaved in the logs. Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2018-08-01 21:33:19 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`/*`
			`* Stack trace functions.`
			`*`
			`* Copyright 2018, Murilo Opsfelder Araujo, IBM Corporation.`
			`*/`

			`#ifndef _ASM_POWERPC_STACKTRACE_H`
			`#define _ASM_POWERPC_STACKTRACE_H`

			`void show_user_instructions(struct pt_regs *regs);`

			`#endif /* _ASM_POWERPC_STACKTRACE_H */`