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authorMatt Fleming <matt@console-pimps.org>2009-08-14 01:58:43 +0900
committerPaul Mundt <lethal@linux-sh.org>2009-08-14 01:58:43 +0900
commitbd353861c735b2265c9d8b2559960c693e7c68ab (patch)
tree2cd13808cb4d50b6b4d63eff0d7ad5fa6d19f04d /arch/sh/Kconfig.debug
parent0eff9f66de79a0707a9c3a2f8528ccfd62100f0b (diff)
downloadvexpress-lsk-bd353861c735b2265c9d8b2559960c693e7c68ab.tar.gz
sh: dwarf unwinder support.
This is a first cut at a generic DWARF unwinder for the kernel. It's still lacking DWARF64 support and the DWARF expression support hasn't been tested very well but it is generating proper stacktraces on SH for WARN_ON() and NULL dereferences. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/Kconfig.debug')
-rw-r--r--arch/sh/Kconfig.debug8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 763b792b161..741d20fab2e 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -110,6 +110,14 @@ config DUMP_CODE
Those looking for more verbose debugging output should say Y.
+config DWARF_UNWINDER
+ bool "Enable the DWARF unwinder for stacktraces"
+ select FRAME_POINTER
+ default n
+ help
+ Enabling this option will make stacktraces more accurate, at
+ the cost of an increase in overall kernel size.
+
config SH_NO_BSS_INIT
bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"
depends on DEBUG_KERNEL