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| author | Andi Kleen <ak@linux.intel.com> | 2014-07-30 20:50:19 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2014-07-30 22:56:04 +0200 |
| commit | bfaf2dd3509bc73bf4a4cea0e72472755ed860e2 (patch) | |
| tree | e7ceb98352696ee3aa373a7559227a361983f31c /Makefile | |
| parent | 866ced950bcd54820c3e571229356adc2b2dd72e (diff) | |
| download | linux-bfaf2dd3509bc73bf4a4cea0e72472755ed860e2.tar.gz | |
Kbuild: Add a option to enable dwarf4 v2
I found that a lot of unresolvable variables when using gdb on the kernel become resolvable when dwarf4 is enabled. So add a Kconfig flag to enable it. It definitely increases the debug information size, but on the other hand this isn't so bad when debug fusion is used. v2: Use cc-option Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Makefile b/Makefile index e5a269465f99..2fd21a58f5cf 100644 --- a/Makefile +++ b/Makefile @@ -691,6 +691,9 @@ KBUILD_CFLAGS += -g endif KBUILD_AFLAGS += -Wa,-gdwarf-2 endif +ifdef CONFIG_DEBUG_INFO_DWARF4 +KBUILD_CFLAGS += $(call cc-option, -gdwarf-4,) +endif ifdef CONFIG_DEBUG_INFO_REDUCED KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ |