[36/54] arm64: stacktrace: use %pSb for backtrace printing

Message ID	20210708010924.mkoZjstH1%akpm@linux-foundation.org (mailing list archive)
State	New
Headers	show Return-Path: <SRS0=OeGd=MA=kvack.org=owner-linux-mm@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6E61060BD3 Date: Wed, 07 Jul 2021 18:09:24 -0700 From: Andrew Morton <akpm@linux-foundation.org> To: akpm@linux-foundation.org, andriy.shevchenko@linux.intel.com, ast@kernel.org, bhe@redhat.com, bp@alien8.de, catalin.marinas@arm.com, dyoung@redhat.com, evgreen@chromium.org, hsinyi@chromium.org, jeyu@kernel.org, jolsa@kernel.org, khlebnikov@yandex-team.ru, linux-mm@kvack.org, linux@rasmusvillemoes.dk, mingo@redhat.com, mm-commits@vger.kernel.org, pmladek@suse.com, rostedt@goodmis.org, sashal@kernel.org, sergey.senozhatsky@gmail.com, swboyd@chromium.org, tglx@linutronix.de, torvalds@linux-foundation.org, vgoyal@redhat.com, will@kernel.org, willy@infradead.org Subject: [patch 36/54] arm64: stacktrace: use %pSb for backtrace printing Message-ID: <20210708010924.mkoZjstH1%akpm@linux-foundation.org> In-Reply-To: <20210707175950.eceddb86c6c555555d4730e2@linux-foundation.org> User-Agent: s-nail v14.8.16 Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	[01/54] lib/test: fix spelling mistakes \| expand [01/54] lib/test: fix spelling mistakes [02/54] lib: fix spelling mistakes [03/54] lib: fix spelling mistakes in header files [04/54] hexagon: handle {,SOFT}IRQENTRY_TEXT in linker script [05/54] hexagon: use common DISCARDS macro [06/54] hexagon: select ARCH_WANT_LD_ORPHAN_WARN [07/54] mm/slub: use stackdepot to save stack trace in objects [08/54] mmap: make mlock_future_check() global [09/54] riscv/Kconfig: make direct map manipulation options depend on MMU [10/54] set_memory: allow querying whether set_direct_map_() is actually enabled [11/54] mm: introduce memfd_secret system call to create "secret" memory areas [12/54] PM: hibernate: disable when there are active secretmem users [13/54] arch, mm: wire up memfd_secret system call where relevant [14/54] secretmem: test: add basic selftest for memfd_secret(2) [15/54] mm: fix spelling mistakes in header files [16/54] mm: add setup_initial_init_mm() helper [17/54] arc: convert to setup_initial_init_mm() [18/54] arm: convert to setup_initial_init_mm() [19/54] arm64: convert to setup_initial_init_mm() [20/54] csky: convert to setup_initial_init_mm() [21/54] h8300: convert to setup_initial_init_mm() [22/54] m68k: convert to setup_initial_init_mm() [23/54] nds32: convert to setup_initial_init_mm() [24/54] nios2: convert to setup_initial_init_mm() [25/54] openrisc: convert to setup_initial_init_mm() [26/54] powerpc: convert to setup_initial_init_mm() [27/54] riscv: convert to setup_initial_init_mm() [28/54] s390: convert to setup_initial_init_mm() [29/54] sh: convert to setup_initial_init_mm() [30/54] x86: convert to setup_initial_init_mm() [31/54] buildid: only consider GNU notes for build ID parsing [32/54] buildid: add API to parse build ID out of buffer [33/54] buildid: stash away kernels build ID on init [34/54] dump_stack: add vmlinux build ID to stack traces [35/54] module: add printk formats to add module build ID to stacktraces [36/54] arm64: stacktrace: use %pSb for backtrace printing [37/54] x86/dumpstack: use %pSb/%pBb for backtrace printing [38/54] scripts/decode_stacktrace.sh: support debuginfod [39/54] scripts/decode_stacktrace.sh: silence stderr messages from addr2line/nm [40/54] scripts/decode_stacktrace.sh: indicate 'auto' can be used for base path [41/54] buildid: mark some arguments const [42/54] buildid: fix kernel-doc notation [43/54] kdump: use vmlinux_build_id to simplify [44/54] mm: rename pud_page_vaddr to pud_pgtable and make it return pmd_t [45/54] mm: rename p4d_page_vaddr to p4d_pgtable and make it return pud_t * [46/54] selftest/mremap_test: update the test to handle pagesize other than 4K [47/54] selftest/mremap_test: avoid crash with static build [48/54] mm/mremap: convert huge PUD move to separate helper [49/54] mm/mremap: don't enable optimized PUD move if page table levels is 2 [50/54] mm/mremap: use pmd/pud_poplulate to update page table entries [51/54] mm/mremap: hold the rmap lock in write mode when moving page table entries. [52/54] mm/mremap: allow arch runtime override [53/54] powerpc/book3s64/mm: update flush_tlb_range to flush page walk cache [54/54] powerpc/mm: enable HAVE_MOVE_PMD support

Message ID

20210708010924.mkoZjstH1%akpm@linux-foundation.org (mailing list archive)

State

New

Headers

DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6E61060BD3
Date: Wed, 07 Jul 2021 18:09:24 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, andriy.shevchenko@linux.intel.com,
 ast@kernel.org, bhe@redhat.com, bp@alien8.de, catalin.marinas@arm.com,
 dyoung@redhat.com, evgreen@chromium.org, hsinyi@chromium.org,
 jeyu@kernel.org, jolsa@kernel.org, khlebnikov@yandex-team.ru,
 linux-mm@kvack.org, linux@rasmusvillemoes.dk, mingo@redhat.com,
 mm-commits@vger.kernel.org, pmladek@suse.com, rostedt@goodmis.org,
 sashal@kernel.org, sergey.senozhatsky@gmail.com, swboyd@chromium.org,
 tglx@linutronix.de, torvalds@linux-foundation.org, vgoyal@redhat.com,
 will@kernel.org, willy@infradead.org
Subject: [patch 36/54] arm64: stacktrace: use %pSb for backtrace
 printing
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Series

[01/54] lib/test: fix spelling mistakes | expand

Commit Message

Andrew Morton July 8, 2021, 1:09 a.m. UTC

From: Stephen Boyd <swboyd@chromium.org>
Subject: arm64: stacktrace: use %pSb for backtrace printing

Let's use the new printk format to print the stacktrace entry when
printing a backtrace to the kernel logs. This will include any module's
build ID[1] in it so that offline/crash debugging can easily locate the
debuginfo for a module via something like debuginfod[2].

Link: https://lkml.kernel.org/r/20210511003845.2429846-7-swboyd@chromium.org
Link: https://fedoraproject.org/wiki/Releases/FeatureBuildId [1]
Link: https://sourceware.org/elfutils/Debuginfod.html [2]
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Evan Green <evgreen@chromium.org>
Cc: Hsin-Yi Wang <hsinyi@chromium.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Young <dyoung@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/arm64/kernel/stacktrace.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm64/kernel/stacktrace.c~arm64-stacktrace-use-%psb-for-backtrace-printing
+++ a/arch/arm64/kernel/stacktrace.c
@@ -153,7 +153,7 @@  NOKPROBE_SYMBOL(walk_stackframe);
 
 static void dump_backtrace_entry(unsigned long where, const char *loglvl)
 {
-	printk("%s %pS\n", loglvl, (void *)where);
+	printk("%s %pSb\n", loglvl, (void *)where);
 }
 
 void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk,

[36/54] arm64: stacktrace: use %pSb for backtrace printing

Commit Message

Patch