Commit-ID: 2f8058ae197236f9d5641850ce27f67d8f3e0b39
Gitweb: http://git.kernel.org/tip/2f8058ae197236f9d5641850ce27f67d8f3e0b39
Author: Namhyung Kim <namhyung@xxxxxxxxx>
AuthorDate: Tue, 8 Mar 2011 20:44:22 +0900
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Thu, 10 Mar 2011 23:20:30 +0100
x86, dumpstack: Use frame pointer during stack trace
If CONFIG_FRAME_POINTER is set then use the frame pointer for the
stack backtrace rather than scanning whole stack blindly.
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
LKML-Reference: <1299584662-24421-4-git-send-email-namhyung@xxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
arch/x86/kernel/dumpstack.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 38b74a5e..56db27d 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -170,7 +170,11 @@ static const struct stacktrace_ops print_trace_ops = {
.warning_symbol = print_trace_warning_symbol,
.stack = print_trace_stack,
.address = print_trace_address,
+#ifdef CONFIG_FRAME_POINTER
+ .walk_stack = walk_context_stack_bp,
+#else
.walk_stack = walk_context_stack,
+#endif
};
void
--
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