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-rw-r--r--tools/perf/config/Makefile14
-rw-r--r--tools/perf/config/feature-checks/Makefile1
-rw-r--r--tools/perf/config/feature-checks/test-all.c4
-rw-r--r--tools/perf/config/feature-checks/test-libunwind-debug-frame.c16
4 files changed, 32 insertions, 3 deletions
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 58b2d37ae23..f5905f2b197 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -31,6 +31,10 @@ ifeq ($(ARCH),x86_64)
endif
NO_PERF_REGS := 0
endif
+ifeq ($(ARCH),arm)
+ NO_PERF_REGS := 0
+ LIBUNWIND_LIBS = -lunwind -lunwind-arm
+endif
ifeq ($(NO_PERF_REGS),0)
CFLAGS += -DHAVE_PERF_REGS_SUPPORT
@@ -305,8 +309,7 @@ ifndef NO_LIBELF
endif # NO_DWARF
endif # NO_LIBELF
-# There's only x86 (both 32 and 64) support for CFI unwind so far
-ifneq ($(ARCH),x86)
+ifeq ($(LIBUNWIND_LIBS),)
NO_LIBUNWIND := 1
endif
@@ -322,8 +325,13 @@ ifndef NO_LIBUNWIND
endif
ifneq ($(feature-libunwind), 1)
- msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 0.99);
+ msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 1.1);
NO_LIBUNWIND := 1
+ else
+ ifneq ($(feature-libunwind-debug-frame), 1)
+ msg := $(warning No debug_frame support found in libunwind);
+ CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
+ endif
endif
endif
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index c803f17fb98..e8e195f49a4 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -23,6 +23,7 @@ FILES= \
test-libpython-version \
test-libslang \
test-libunwind \
+ test-libunwind-debug-frame \
test-on-exit \
test-stackprotector-all \
test-stackprotector \
diff --git a/tools/perf/config/feature-checks/test-all.c b/tools/perf/config/feature-checks/test-all.c
index 59e7a705e14..799865b6077 100644
--- a/tools/perf/config/feature-checks/test-all.c
+++ b/tools/perf/config/feature-checks/test-all.c
@@ -49,6 +49,10 @@
# include "test-libunwind.c"
#undef main
+#define main main_test_libunwind_debug_frame
+# include "test-libunwind-debug-frame.c"
+#undef main
+
#define main main_test_libaudit
# include "test-libaudit.c"
#undef main
diff --git a/tools/perf/config/feature-checks/test-libunwind-debug-frame.c b/tools/perf/config/feature-checks/test-libunwind-debug-frame.c
new file mode 100644
index 00000000000..0ef8087a104
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libunwind-debug-frame.c
@@ -0,0 +1,16 @@
+#include <libunwind.h>
+#include <stdlib.h>
+
+extern int
+UNW_OBJ(dwarf_find_debug_frame) (int found, unw_dyn_info_t *di_debug,
+ unw_word_t ip, unw_word_t segbase,
+ const char *obj_name, unw_word_t start,
+ unw_word_t end);
+
+#define dwarf_find_debug_frame UNW_OBJ(dwarf_find_debug_frame)
+
+int main(void)
+{
+ dwarf_find_debug_frame(0, NULL, 0, 0, NULL, 0, 0);
+ return 0;
+}