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ARM: 8074/1: traps: Make use of the frame_pointer macro

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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>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Nikolay Borisov
2014-06-03 19:50:09 +01:00
committed by Russell King
parent c8bee0ad78
commit 49432d4acf
1 changed files with 4 additions and 2 deletions
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6
arch/arm/kernel/traps.c
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@@ -31,11 +31,13 @@
#include <asm/exception.h> #include <asm/exception.h>
#include <asm/unistd.h> #include <asm/unistd.h>
#include <asm/traps.h> #include <asm/traps.h>
#include <asm/ptrace.h>
#include <asm/unwind.h> #include <asm/unwind.h>
#include <asm/tls.h> #include <asm/tls.h>
#include <asm/system_misc.h> #include <asm/system_misc.h>
#include <asm/opcodes.h> #include <asm/opcodes.h>
static const char *handler[]= { static const char *handler[]= {
"prefetch abort", "prefetch abort",
"data abort", "data abort",
@@ -184,7 +186,7 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
tsk = current; tsk = current;
if (regs) { if (regs) {
fp = regs->ARM_fp; fp = frame_pointer(regs);
mode = processor_mode(regs); mode = processor_mode(regs);
} else if (tsk != current) { } else if (tsk != current) {
fp = thread_saved_fp(tsk); fp = thread_saved_fp(tsk);
@@ -719,7 +721,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
dump_instr("", regs); dump_instr("", regs);
if (user_mode(regs)) { if (user_mode(regs)) {
__show_regs(regs); __show_regs(regs);
c_backtrace(regs->ARM_fp, processor_mode(regs)); c_backtrace(frame_pointer(regs), processor_mode(regs));
} }
} }
#endif #endif