From: nikolay.borisov@arm.com (Nikolay Borisov)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 6/7] ARM: traps: Make use of the frame_pointer macro
Date: Fri, 30 May 2014 17:59:50 +0100 [thread overview]
Message-ID: <1401469191-29232-7-git-send-email-nikolay.borisov@arm.com> (raw)
In-Reply-To: <1401469191-29232-1-git-send-email-nikolay.borisov@arm.com>
From: Nikolay Borisov <Nikolay.Borisov@arm.com>
Use the newly-introduced frame_pointer macro to extract
the correct FP based on whether we are in THUMB2 mode or not.
Signed-off-by: Nikolay Borisov <Nikolay.Borisov@arm.com>
---
arch/arm/kernel/traps.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index abd2fc0..c8e4bb7 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -31,11 +31,13 @@
#include <asm/exception.h>
#include <asm/unistd.h>
#include <asm/traps.h>
+#include <asm/ptrace.h>
#include <asm/unwind.h>
#include <asm/tls.h>
#include <asm/system_misc.h>
#include <asm/opcodes.h>
+
static const char *handler[]= {
"prefetch abort",
"data abort",
@@ -184,7 +186,7 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
tsk = current;
if (regs) {
- fp = regs->ARM_fp;
+ fp = frame_pointer(regs);
mode = processor_mode(regs);
} else if (tsk != current) {
fp = thread_saved_fp(tsk);
@@ -719,7 +721,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
dump_instr("", regs);
if (user_mode(regs)) {
__show_regs(regs);
- c_backtrace(regs->ARM_fp, processor_mode(regs));
+ c_backtrace(frame_pointer(regs), processor_mode(regs));
}
}
#endif
--
1.8.1.5
next prev parent reply other threads:[~2014-05-30 16:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-30 16:59 [PATCH v2 0/7] Fix backtrace support in THUMB2 mode Nikolay Borisov
2014-05-30 16:59 ` [PATCH v2 1/7] ARM: Make thread_save_fp macro aware of " Nikolay Borisov
2014-05-30 16:59 ` [PATCH v2 2/7] ARM: Introduce arm_get_current_stack_frame() Nikolay Borisov
2014-05-30 17:20 ` Will Deacon
2014-06-02 8:05 ` Robert Richter
2014-05-30 16:59 ` [PATCH v3 3/7] ARM: perf: Make perf use arm_get_current_stackframe Nikolay Borisov
2014-05-30 16:59 ` [PATCH v2 4/7] ARM: time: Make use of arm_get_current_stackframe Nikolay Borisov
2014-05-30 16:59 ` [PATCH v2 5/7] ARM: unwind: Use arm_get_current_stackframe Nikolay Borisov
2014-05-30 16:59 ` Nikolay Borisov [this message]
2014-05-30 16:59 ` [PATCH v2 7/7] ARM: oprofile: Use of arm_get_current_stackframe Nikolay Borisov
2014-05-30 17:19 ` [PATCH v2 0/7] Fix backtrace support in THUMB2 mode Will Deacon
2014-05-31 18:31 ` Arnd Bergmann
2014-06-02 8:34 ` Nikolay Borisov
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