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authorThomas Richter <tmricht@linux.ibm.com>2023-07-11 16:53:38 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2023-07-11 19:17:05 +0300
commita87834d19aa2bf455e2fd9309ef4754eccd8459a (patch)
tree6806ab8b1893c373b8c137f3dfe2b2f709f21c52 /tools
parent920b91d92702784f34b7c70b86ca051ba1c94430 (diff)
downloadlinux-a87834d19aa2bf455e2fd9309ef4754eccd8459a.tar.xz
perf build: Fix broken feature check for libtracefs due to external lib changes
The perf build process auto-detects features and packages already installed for its build. This is done in directory tools/build/feature. This directory contains small sample programs. When they successfully compile the necessary prereqs in form of libraries and header files are present. Such a check is also done for libtracefs. And this check fails: Output before: # rm -f test-libtracefs.bin; make test-libtracefs.bin gcc -MD -Wall -Werror -o test-libtracefs.bin test-libtracefs.c \ > test-libtracefs.make.output 2>&1 -ltracefs make: *** [Makefile:211: test-libtracefs.bin] Error 1 # cat test-libtracefs.make.output In file included from test-libtracefs.c:2: /usr/include/tracefs/tracefs.h:11:10: fatal error: \ event-parse.h: No such file or directory 11 | #include <event-parse.h> | ^~~~~~~~~~~~~~~ compilation terminated. # The root cause of this compile error is commit 880885d9c22e ("libtracefs: Remove "traceevent/" from referencing libtraceevent headers") in the libtracefs project hosted here: https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/ That mentioned patch removes the traceevent/ directory name from the include statement, causing the file not to be included even when the libtraceevent-devel package is installed. This package contains the file referred to in tracefs/tracefs.h: # rpm -ql libtraceevent-devel /usr/include/traceevent /usr/include/traceevent/event-parse.h <----- here /usr/include/traceevent/event-utils.h /usr/include/traceevent/kbuffer.h /usr/include/traceevent/trace-seq.h /usr/lib64/libtraceevent.so /usr/lib64/pkgconfig/libtraceevent.pc # With this patch the compile succeeds. Output after: # rm -f test-libtracefs.bin; make test-libtracefs.bin gcc -MD -Wall -Werror -o test-libtracefs.bin test-libtracefs.c \ > test-libtracefs.make.output 2>&1 -I/usr/include/traceevent -ltracefs # Committer testing: $ make -k BUILD_BPF_SKEL=1 CORESIGHT=1 O=/tmp/build/perf-tools -C tools/perf install-bin Before: $ cat /tmp/build/perf-tools/feature/test-libtracefs.make.output In file included from test-libtracefs.c:2: /usr/include/tracefs/tracefs.h:11:10: fatal error: event-parse.h: No such file or directory 11 | #include <event-parse.h> | ^~~~~~~~~~~~~~~ compilation terminated. $ $ grep -i tracefs /tmp/build/perf-tools/FEATURE-DUMP feature-libtracefs=0 $ After: $ cat /tmp/build/perf-tools/feature/test-libtracefs.make.output $ $ grep -i tracefs /tmp/build/perf-tools/FEATURE-DUMP feature-libtracefs=1 $ Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Link: https://lore.kernel.org/r/20230711135338.397473-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/build/feature/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 0f0aa9b7d7b5..2cd6dbbee088 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -208,7 +208,7 @@ $(OUTPUT)test-libtraceevent.bin:
$(BUILD) -ltraceevent
$(OUTPUT)test-libtracefs.bin:
- $(BUILD) -ltracefs
+ $(BUILD) $(shell $(PKG_CONFIG) --cflags libtraceevent 2>/dev/null) -ltracefs
$(OUTPUT)test-libcrypto.bin:
$(BUILD) -lcrypto