From: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: "Alastair D'Silva" <alastair@d-silva.org>,
Andrew Donnellan <andrew.donnellan@au1.ibm.com>,
Balbir Singh <bsingharora@gmail.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Christophe Leroy <christophe.leroy@c-s.fr>,
Cyril Bur <cyrilbur@gmail.com>,
"Eric W . Biederman" <ebiederm@xmission.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Michael Neuling <mikey@neuling.org>,
Murilo Opsfelder Araujo <muriloo@linux.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>,
Paul Mackerras <paulus@samba.org>,
Simon Guo <wei.guo.simon@gmail.com>,
Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>,
"Tobin C . Harding" <me@tobin.cc>,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v2 08/10] powerpc: Add stacktrace.h header
Date: Fri, 27 Jul 2018 11:58:09 -0300 [thread overview]
Message-ID: <20180727145811.12334-9-muriloo@linux.ibm.com> (raw)
In-Reply-To: <20180727145811.12334-1-muriloo@linux.ibm.com>
Move show_instructions() declaration to
arch/powerpc/include/asm/stacktrace.h and include asm/stracktrace.h in
arch/powerpc/kernel/process.c, which contains the implementation.
This allows show_instructions() to be called on, for example,
show_signal_msg().
Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
---
arch/powerpc/include/asm/stacktrace.h | 13 +++++++++++++
arch/powerpc/kernel/process.c | 3 ++-
2 files changed, 15 insertions(+), 1 deletion(-)
create mode 100644 arch/powerpc/include/asm/stacktrace.h
diff --git a/arch/powerpc/include/asm/stacktrace.h b/arch/powerpc/include/asm/stacktrace.h
new file mode 100644
index 000000000000..217ebc52ff97
--- /dev/null
+++ b/arch/powerpc/include/asm/stacktrace.h
@@ -0,0 +1,13 @@
+/* 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_instructions(struct pt_regs *regs);
+
+#endif /* _ASM_POWERPC_STACKTRACE_H */
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 04960796fcce..709bfb524b84 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -52,6 +52,7 @@
#include <asm/machdep.h>
#include <asm/time.h>
#include <asm/runlatch.h>
+#include <asm/stacktrace.h>
#include <asm/syscalls.h>
#include <asm/switch_to.h>
#include <asm/tm.h>
@@ -1261,7 +1262,7 @@ struct task_struct *__switch_to(struct task_struct *prev,
static int instructions_to_print = 16;
-static void show_instructions(struct pt_regs *regs)
+void show_instructions(struct pt_regs *regs)
{
int i;
unsigned long pc = regs->nip - (instructions_to_print * 3 / 4 *
--
2.17.1
next prev parent reply other threads:[~2018-07-27 14:59 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-27 14:58 [PATCH v2 00/10] powerpc: Modernize unhandled signals message Murilo Opsfelder Araujo
2018-07-27 14:58 ` [PATCH v2 01/10] powerpc/traps: Print unhandled signals in a separate function Murilo Opsfelder Araujo
2018-07-27 14:58 ` [PATCH v2 02/10] powerpc/traps: Return early in show_signal_msg() Murilo Opsfelder Araujo
2018-07-27 14:58 ` [PATCH v2 03/10] powerpc/reg: Add REG_FMT definition Murilo Opsfelder Araujo
2018-07-27 14:58 ` [PATCH v2 04/10] powerpc/traps: Use REG_FMT in show_signal_msg() Murilo Opsfelder Araujo
2018-07-27 16:40 ` LEROY Christophe
2018-07-27 17:18 ` Joe Perches
2018-07-30 15:28 ` Murilo Opsfelder Araujo
2018-07-30 16:30 ` LEROY Christophe
2018-07-30 23:17 ` Murilo Opsfelder Araujo
2018-07-31 9:32 ` Michael Ellerman
2018-07-31 9:52 ` Alastair D'Silva
2018-07-27 14:58 ` [PATCH v2 05/10] powerpc/traps: Print VMA for unhandled signals Murilo Opsfelder Araujo
2018-07-27 14:58 ` [PATCH v2 06/10] powerpc/traps: Print signal name " Murilo Opsfelder Araujo
2018-07-27 14:58 ` [PATCH v2 07/10] powerpc: Do not call __kernel_text_address() in show_instructions() Murilo Opsfelder Araujo
2018-07-27 14:58 ` Murilo Opsfelder Araujo [this message]
2018-07-27 14:58 ` [PATCH v2 09/10] powerpc/traps: Show instructions on exceptions Murilo Opsfelder Araujo
2018-07-27 14:58 ` [PATCH v2 10/10] powerpc/traps: Add line prefix in show_instructions() Murilo Opsfelder Araujo
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