This is a note to let you know that I've just added the patch titled
tools features: Add feature test to check if libbfd has buildid support
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tools-features-add-feature-test-to-check-if-libbfd-h.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a22950e751cde187a5650f9029720e7fa02ea97c
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Date: Thu Sep 3 13:44:39 2020 -0300
tools features: Add feature test to check if libbfd has buildid support
[ Upstream commit e71e19a9ea70952a53d58a99971820ce6c1794a8 ]
Which is needed by the PE executable support, for instance.
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Ian Rogers <irogers@xxxxxxxxxx>
Cc: Jacek Caban <jacek@xxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Remi Bernon <rbernon@xxxxxxxxxxxxxxx>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Stable-dep-of: 7822a8913f4c ("perf build: Update build rule for generated files")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 1ea26bb8c5791..6714c886940f8 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -42,6 +42,7 @@ FEATURE_TESTS_BASIC := \
gtk2-infobar \
libaudit \
libbfd \
+ libbfd-buildid \
libcap \
libelf \
libelf-getphdrnum \
@@ -110,6 +111,7 @@ FEATURE_DISPLAY ?= \
gtk2 \
libaudit \
libbfd \
+ libbfd-buildid \
libcap \
libelf \
libnuma \
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 88392219d425e..8104e505efde6 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -15,6 +15,7 @@ FILES= \
test-hello.bin \
test-libaudit.bin \
test-libbfd.bin \
+ test-libbfd-buildid.bin \
test-disassembler-four-args.bin \
test-reallocarray.bin \
test-libbfd-liberty.bin \
@@ -223,6 +224,9 @@ $(OUTPUT)test-libpython.bin:
$(OUTPUT)test-libbfd.bin:
$(BUILD) -DPACKAGE='"perf"' -lbfd -ldl
+$(OUTPUT)test-libbfd-buildid.bin:
+ $(BUILD) -DPACKAGE='"perf"' -lbfd -ldl
+
$(OUTPUT)test-disassembler-four-args.bin:
$(BUILD) -DPACKAGE='"perf"' -lbfd -lopcodes
diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index 6eaeaf2da36ea..039bd2fbe7d9e 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c
@@ -90,6 +90,10 @@
# include "test-libbfd.c"
#undef main
+#define main main_test_libbfd_buildid
+# include "test-libbfd-buildid.c"
+#undef main
+
#define main main_test_backtrace
# include "test-backtrace.c"
#undef main
@@ -208,6 +212,7 @@ int main(int argc, char *argv[])
main_test_gtk2(argc, argv);
main_test_gtk2_infobar(argc, argv);
main_test_libbfd();
+ main_test_libbfd_buildid();
main_test_backtrace();
main_test_libnuma();
main_test_numa_num_possible_cpus();
diff --git a/tools/build/feature/test-libbfd-buildid.c b/tools/build/feature/test-libbfd-buildid.c
new file mode 100644
index 0000000000000..157644b04c052
--- /dev/null
+++ b/tools/build/feature/test-libbfd-buildid.c
@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <bfd.h>
+
+int main(void)
+{
+ bfd *abfd = bfd_openr("Pedro", 0);
+ return abfd && (!abfd->build_id || abfd->build_id->size > 0x506564726f);
+}
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index b94d9afad3f79..cc11050420496 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -775,6 +775,12 @@ else
$(call feature_check,disassembler-four-args)
endif
+ifeq ($(feature-libbfd-buildid), 1)
+ CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
+else
+ msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
+endif
+
ifdef NO_DEMANGLE
CFLAGS += -DNO_DEMANGLE
else
