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authorHeiko Carstens <heiko.carstens@de.ibm.com>2015-01-09 13:06:33 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2015-01-29 09:19:19 +0100
commitc0a80c0c27e5e65b180a25e6c4c2f7ef9e386cd3 (patch)
tree4c3a34ab47f07da13df0f351db4cef929f07bcf9 /scripts/Makefile.build
parent4d92f50249eb3ed1c066276e214e8cc7be81e96d (diff)
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ftrace: allow architectures to specify ftrace compile options
If the kernel is compiled with function tracer support the -pg compile option is passed to gcc to generate extra code into the prologue of each function. This patch replaces the "open-coded" -pg compile flag with a CC_FLAGS_FTRACE makefile variable which architectures can override if a different option should be used for code generation. Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'scripts/Makefile.build')
-rw-r--r--scripts/Makefile.build5
1 files changed, 3 insertions, 2 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 649ce6844033..01df30af4d4a 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -234,8 +234,9 @@ sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH
"$(if $(part-of-module),1,0)" "$(@)";
recordmcount_source := $(srctree)/scripts/recordmcount.pl
endif
-cmd_record_mcount = \
- if [ "$(findstring -pg,$(_c_flags))" = "-pg" ]; then \
+cmd_record_mcount = \
+ if [ "$(findstring $(CC_FLAGS_FTRACE),$(_c_flags))" = \
+ "$(CC_FLAGS_FTRACE)" ]; then \
$(sub_cmd_record_mcount) \
fi;
endif