Re: [PATCH V3] tools/perf: Add includes for detected configs in Makefile.perf

On 13-Sep-2023, at 1:06 AM, Arnaldo Carvalho de Melo [off-list ref] wrote:

Em Tue, Sep 12, 2023 at 07:00:00AM -0700, Ian Rogers escreveu:

quoted

On Mon, Sep 11, 2023 at 11:38 PM Athira Rajeev
[off-list ref] wrote:

quoted

Makefile.perf uses "CONFIG_*" checks in the code. Example the config
for libtraceevent is used to set PYTHON_EXT_SRCS

       ifeq ($(CONFIG_LIBTRACEEVENT),y)
         PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
       else
         PYTHON_EXT_SRCS := $(shell grep -v '^\#\|util/trace-event.c' util/python-ext-sources)
       endif

But this is not picking the value for CONFIG_LIBTRACEEVENT that is
set using the settings in Makefile.config. Include the file
".config-detected" so that make will use the system detected
configuration in the CONFIG checks. This will fix isues that
could arise when other "CONFIG_*" checks are added to Makefile.perf
in future as well.

Signed-off-by: Athira Rajeev <redacted>

Reviewed-by: Ian Rogers <irogers@google.com>

Thanks, applied.

- Arnaldo

Thanks Ian for the review and thanks Arnaldo for picking this fix

Athira

quoted

Thanks,
Ian

quoted

---
Changelog:
v2 -> v3:
Added -include since in some cases make clean or make
will fail when config is not included and if config-detected
file is not present.

v1 -> v2:
Added $(OUTPUT) prefix to config-detected as pointed
out by Ian

tools/perf/Makefile.perf | 3 +++
1 file changed, 3 insertions(+)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 37af6df7b978..f6fdc2d5a92f 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf

@@ -351,6 +351,9 @@ export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP

python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT)python/perf*.so

+# Use the detected configuration
+-include $(OUTPUT).config-detected
+
ifeq ($(CONFIG_LIBTRACEEVENT),y)
  PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
else
--
2.31.1

-- 

- Arnaldo