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authorIngo Molnar <mingo@kernel.org>2013-09-30 14:45:44 +0200
committerIngo Molnar <mingo@kernel.org>2013-10-09 08:48:39 +0200
commit058f952de9b3075cd888dc3cea60691db0ec4d3f (patch)
treefa3c6c60ad36cd206dc1cfac62e1da75abfc211f /tools/perf/config/feature-checks
parent308e1e700a1337b89c7530a4f4cdde5ccb52fb4e (diff)
downloadblackbird-op-linux-058f952de9b3075cd888dc3cea60691db0ec4d3f.tar.gz
blackbird-op-linux-058f952de9b3075cd888dc3cea60691db0ec4d3f.zip
tools/perf/build: Split out feature check: 'libunwind'
Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/n/tip-vTiatsVyva3tfgh3vhxaidxl@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/config/feature-checks')
-rw-r--r--tools/perf/config/feature-checks/Makefile4
-rw-r--r--tools/perf/config/feature-checks/test-libunwind.c20
2 files changed, 24 insertions, 0 deletions
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 83b3a02b64d8..d6d9570a038f 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -11,6 +11,7 @@ FILES= \
test-dwarf \
test-libelf-mmap \
test-libelf-getphdrnum \
+ test-libunwind \
test-libnuma
CC := $(CC) -MD
@@ -57,6 +58,9 @@ test-libelf-getphdrnum:
test-libnuma:
$(BUILD) -lnuma
+test-libunwind:
+ $(BUILD) -lunwind -lunwind-x86_64 -lelf
+
-include *.d */*.d
###############################
diff --git a/tools/perf/config/feature-checks/test-libunwind.c b/tools/perf/config/feature-checks/test-libunwind.c
new file mode 100644
index 000000000000..562274695c76
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libunwind.c
@@ -0,0 +1,20 @@
+#include <libunwind.h>
+#include <stdlib.h>
+
+extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
+ unw_word_t ip,
+ unw_dyn_info_t *di,
+ unw_proc_info_t *pi,
+ int need_unwind_info, void *arg);
+
+
+#define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
+
+int main(void)
+{
+ unw_addr_space_t addr_space;
+ addr_space = unw_create_addr_space(NULL, 0);
+ unw_init_remote(NULL, addr_space, NULL);
+ dwarf_search_unwind_table(addr_space, 0, NULL, NULL, 0, NULL);
+ return 0;
+}
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