mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-14 06:35:12 +00:00
0f68d45ef4
To print stack entries into a buffer, users of stackdepot, first get a list of stack entries using stack_depot_fetch and then print this list into a buffer using stack_trace_snprint. Provide a helper in stackdepot for this purpose. Also change above mentioned users to use this helper. [imran.f.khan@oracle.com: fix build error] Link: https://lkml.kernel.org/r/20210915175321.3472770-4-imran.f.khan@oracle.com [imran.f.khan@oracle.com: export stack_depot_snprint() to modules] Link: https://lkml.kernel.org/r/20210916133535.3592491-4-imran.f.khan@oracle.com Link: https://lkml.kernel.org/r/20210915014806.3206938-4-imran.f.khan@oracle.com Signed-off-by: Imran Khan <imran.f.khan@oracle.com> Suggested-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Jani Nikula <jani.nikula@intel.com> [i915] Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
42 lines
997 B
C
42 lines
997 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* A generic stack depot implementation
|
|
*
|
|
* Author: Alexander Potapenko <glider@google.com>
|
|
* Copyright (C) 2016 Google, Inc.
|
|
*
|
|
* Based on code by Dmitry Chernenkov.
|
|
*/
|
|
|
|
#ifndef _LINUX_STACKDEPOT_H
|
|
#define _LINUX_STACKDEPOT_H
|
|
|
|
#include <linux/gfp.h>
|
|
|
|
typedef u32 depot_stack_handle_t;
|
|
|
|
depot_stack_handle_t __stack_depot_save(unsigned long *entries,
|
|
unsigned int nr_entries,
|
|
gfp_t gfp_flags, bool can_alloc);
|
|
|
|
depot_stack_handle_t stack_depot_save(unsigned long *entries,
|
|
unsigned int nr_entries, gfp_t gfp_flags);
|
|
|
|
unsigned int stack_depot_fetch(depot_stack_handle_t handle,
|
|
unsigned long **entries);
|
|
|
|
int stack_depot_snprint(depot_stack_handle_t handle, char *buf, size_t size,
|
|
int spaces);
|
|
|
|
void stack_depot_print(depot_stack_handle_t stack);
|
|
|
|
#ifdef CONFIG_STACKDEPOT
|
|
int stack_depot_init(void);
|
|
#else
|
|
static inline int stack_depot_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_STACKDEPOT */
|
|
|
|
#endif
|