FRAME_POINTER is defined in lib/Kconfig.debug, it is unnecessary to redefine
it in arch/arm64/Kconfig.debug. Actually, the one defined in arm64 directory
is never used.
This adds a dependency on DEBUG_KERNEL for building with frame pointers.
ARM64 depends on frame pointer to get correct stack backtrace and need
FRAME_POINTER kconfig option enabled all the time.
However, currect implementation makes it could be disabled, so force it
to be selected by ARM64.
Signed-off-by: Yang Shi <yang....@linaro.org>
---
change v3 --> v2:
squash two patches into one.
arch/arm64/Kconfig | 1 +
arch/arm64/Kconfig.debug | 4 ----
2 files changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 440d906..b554da2 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -27,6 +27,7 @@ config ARM64
select CPU_PM if (SUSPEND || CPU_IDLE)
select DCACHE_WORD_ACCESS
select EDAC_SUPPORT
+ select FRAME_POINTER
select GENERIC_ALLOCATOR
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
index d6285ef..915dea7 100644
--- a/arch/arm64/Kconfig.debug
+++ b/arch/arm64/Kconfig.debug
@@ -2,10 +2,6 @@ menu "Kernel hacking"
source "lib/Kconfig.debug"
-config FRAME_POINTER
- bool
- default y
-
config ARM64_PTDUMP
bool "Export kernel pagetable layout to userspace via debugfs"
depends on DEBUG_KERNEL
--
2.0.2
--
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