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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2015-01-09 13:06:33 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-01-29 09:19:19 +0100 |
| commit | c0a80c0c27e5e65b180a25e6c4c2f7ef9e386cd3 (patch) | |
| tree | 4c3a34ab47f07da13df0f351db4cef929f07bcf9 /scripts/Makefile.build | |
| parent | s390: reintroduce diag 44 calls for cpu_relax() (diff) | |
| download | linux-c0a80c0c27e5e65b180a25e6c4c2f7ef9e386cd3.tar.xz linux-c0a80c0c27e5e65b180a25e6c4c2f7ef9e386cd3.zip | |
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.build | 5 |
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 |