SFrame: Add tests that uses DWARF backtracer

When SFrame is enabled, we need to tests DW backtracer as well. Do
this by executing the same backtrace tests with .sframe section
stripped.

Signed-off-by: Claudiu Zissulescu <claudiu.zissulescu-ianculescu@oracle.com>
Reviewed-by: DJ Delorie <dj@redhat.com>

diff --git a/debug/Makefile b/debug/Makefile
index 40201844b3114e6da52c32b41b8c9674dc284fb5..f29bd20b97273746dcffbe1423ea35950e762865 100644 (file)
--- a/debug/Makefile
+++ b/debug/Makefile
@@ -278,6 +278,34 @@ LDFLAGS-tst-backtrace4 = -rdynamic
 LDFLAGS-tst-backtrace5 = -rdynamic
 LDFLAGS-tst-backtrace6 = -rdynamic
 
+# When SFrame is enabled, make sure the dwarf unwinder is also exercised.
+ifeq ($(enable-gsframe),yes)
+dw_unwind_pair := \
+  tst-backtrace7:tst-backtrace2 \
+  tst-backtrace8:tst-backtrace3 \
+  tst-backtrace9:tst-backtrace4 \
+  tst-backtrace10:tst-backtrace5 \
+  tst-backtrace11:tst-backtrace6
+
+first_column = $(foreach pair,$(dw_unwind_pair),$(word 1,$(subst :, ,$(pair))))
+tests-dw-unwind = $(patsubst %,$(objpfx)%.out,$(first_column))
+tests-special += $(tests-dw-unwind)
+endif
+
+define make-strip-rule
+$(objpfx)$(word 1,$(subst :, ,$(1))): $(objpfx)$(word 2,$(subst :, ,$(1)))
+       strip --remove-section=.sframe $$< -o $$@
+endef
+
+$(foreach pair,$(dw_unwind_pair),$(eval $(call make-strip-rule,$(pair))))
+
+define make-run-rule
+$(objpfx)$(word 1,$(subst :, ,$(1))).out: /dev/null $(objpfx)$(word 1,$(subst :, ,$(1)))
+       $$(make-test-out) > $$@; $$(evaluate-test)
+endef
+
+$(foreach pair,$(dw_unwind_pair),$(eval $(call make-run-rule,$(pair))))
+
 CFLAGS-tst-ssp-1.c += -fstack-protector-all
 
 # Disable compiler optimizations around vsprintf (the function under test).