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kbuild: Fix debugging info generation for .S files 

Change the debuging info generation flag in KBUILD_AFLAGS from '-gdwarf-2' to
'-Wa,--gdwarf-2'.  This will properly generate the debugging info for .S files
when CONFIG_DEBUG_INFO=y.

It seems current gcc does not pass a '--gdwarf-2' option on to the assembler
when '-gdwarf-2' is on its command line (note the differece in the gcc and as
flags).  This change provides the correct assembler flag to gcc, and so does
not rely on gcc to emit a flag for the assembler.

Signed-off-by: Geoff Levand <geoff@infradead.org> for Huawei, Linaro
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Geoff Levand 2013-12-11 23:34:40 +00:00 committed by Michal Marek
parent 9df62f0544
commit 7db436325d
1 changed files with 1 additions and 1 deletions
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Makefile
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@ -625,7 +625,7 @@ endif
ifdef CONFIG_DEBUG_INFO
KBUILD_CFLAGS += -g
KBUILD_AFLAGS += -gdwarf-2
KBUILD_AFLAGS += -Wa,--gdwarf-2
endif
ifdef CONFIG_DEBUG_INFO_REDUCED