perf build: Add feature detection for libelf's elf_getshdrstrndx()
That appeared after 0.140, and will be used in the SDT code, so, to
avoid bisection break on older systems, add a feature detection and
provide a stub with a pr_debug() to keep it building.
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-80y0eldgweorqnwha9rvfxjr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 57c8f98..3dd529b 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -40,6 +40,7 @@
libbfd \
libelf \
libelf-getphdrnum \
+ libelf-getshdrstrndx \
libelf-mmap \
libnuma \
numa_num_possible_cpus \
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 3d88f09..6747116 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -17,6 +17,7 @@
test-cplus-demangle.bin \
test-libelf.bin \
test-libelf-getphdrnum.bin \
+ test-libelf-getshdrstrndx.bin \
test-libelf-mmap.bin \
test-libnuma.bin \
test-numa_num_possible_cpus.bin \
@@ -98,6 +99,9 @@
$(OUTPUT)test-libelf-getphdrnum.bin:
$(BUILD) -lelf
+$(OUTPUT)test-libelf-getshdrstrndx.bin:
+ $(BUILD) -lelf
+
$(OUTPUT)test-libnuma.bin:
$(BUILD) -lnuma
diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index a282e8c..7433cca 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c
@@ -49,6 +49,10 @@
# include "test-libelf-getphdrnum.c"
#undef main
+#define main main_test_libelf_getshdrstrndx
+# include "test-libelf-getshdrstrndx.c"
+#undef main
+
#define main main_test_libunwind
# include "test-libunwind.c"
#undef main
@@ -149,6 +153,7 @@
main_test_dwarf();
main_test_dwarf_getlocations();
main_test_libelf_getphdrnum();
+ main_test_libelf_getshdrstrndx();
main_test_libunwind();
main_test_libaudit();
main_test_libslang();
diff --git a/tools/build/feature/test-libelf-getshdrstrndx.c b/tools/build/feature/test-libelf-getshdrstrndx.c
new file mode 100644
index 0000000..f0c3b47
--- /dev/null
+++ b/tools/build/feature/test-libelf-getshdrstrndx.c
@@ -0,0 +1,8 @@
+#include <libelf.h>
+
+int main(void)
+{
+ size_t dst;
+
+ return elf_getshdrstrndx(0, &dst);
+}