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@xxxxxxxxxx>
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
tools/build/Makefile.feature | 1 +
tools/build/feature/Makefile | 4 ++++
tools/build/feature/test-dwarf_getcfi.c | 9 +++++++++
3 files changed, 14 insertions(+)
create mode 100644 tools/build/feature/test-dwarf_getcfi.c
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 934e2777a2db..64df118376df 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -32,6 +32,7 @@ FEATURE_TESTS_BASIC := \
backtrace \
dwarf \
dwarf_getlocations \
+ dwarf_getcfi \
eventfd \
fortify-source \
get_current_dir_name \
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index dad79ede4e0a..37722e509eb9 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -7,6 +7,7 @@ FILES= \
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 \
@@ -154,6 +155,9 @@ endif
$(OUTPUT)test-dwarf_getlocations.bin:
$(BUILD) $(DWARFLIBS)
+$(OUTPUT)test-dwarf_getcfi.bin:
+ $(BUILD) $(DWARFLIBS)
+
$(OUTPUT)test-libelf-getphdrnum.bin:
$(BUILD) -lelf
diff --git a/tools/build/feature/test-dwarf_getcfi.c b/tools/build/feature/test-dwarf_getcfi.c
new file mode 100644
index 000000000000..50e7d7cb7bdf
--- /dev/null
+++ b/tools/build/feature/test-dwarf_getcfi.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdio.h>
+#include <elfutils/libdw.h>
+
+int main(void)
+{
+ Dwarf *dwarf = NULL;
+ return dwarf_getcfi(dwarf) == NULL;
+}
--
2.42.0.869.gea05f2083d-goog
|