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 <[email protected]> for Huawei, Linaro Signed-off-by: Michal Marek <[email protected]>
zhenyw · Jan 27, 2014 · 7db4363 · 7db4363
1 parent 9df62f0
commit 7db4363
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Makefile b/Makefile
@@ -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