The dwarf_getcfi() is available on libdw 0.142+. Instead of just
checking the version number, it'd be nice to have a config item to check
the feature at build time.
Suggested-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: linux-toolchains@vger.kernel.org
Cc: linux-trace-devel@vger.kernel.org
Link: https://lore.kernel.org/r/20231110000012.3538610-9-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
backtrace \
dwarf \
dwarf_getlocations \
+ dwarf_getcfi \
eventfd \
fortify-source \
get_current_dir_name \
test-bionic.bin \
test-dwarf.bin \
test-dwarf_getlocations.bin \
+ test-dwarf_getcfi.bin \
test-eventfd.bin \
test-fortify-source.bin \
test-get_current_dir_name.bin \
$(OUTPUT)test-dwarf_getlocations.bin:
$(BUILD) $(DWARFLIBS)
+$(OUTPUT)test-dwarf_getcfi.bin:
+ $(BUILD) $(DWARFLIBS)
+
$(OUTPUT)test-libelf-getphdrnum.bin:
$(BUILD) -lelf
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+#include <stdio.h>
+#include <elfutils/libdw.h>
+
+int main(void)
+{
+ Dwarf *dwarf = NULL;
+ return dwarf_getcfi(dwarf) == NULL;
+}