From 642f5f24142703e4b557acc3c5485b6f1e3a8927 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ga=C3=ABtan=20Harter?= <gaetan.harter@fu-berlin.de>
Date: Tue, 12 Jun 2018 19:32:17 +0200
Subject: [PATCH] cortexm_common_ldscript: add test for linker script offset
Compile two elf files with different offset and verify the linked file offset.
I only enabled samr21-xpro and iotlab nodes for the moment.
---
tests/cortexm_common_ldscript/Makefile | 35 +++++++++++++++++++++++++-
1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/tests/cortexm_common_ldscript/Makefile b/tests/cortexm_common_ldscript/Makefile
index 10b58ab291..49973d3f29 100644
--- a/tests/cortexm_common_ldscript/Makefile
+++ b/tests/cortexm_common_ldscript/Makefile
@@ -24,7 +24,8 @@ include $(RIOTBASE)/Makefile.include
# Compile time tests for ROM_OFFSET #
# # # # # # # # # # # # # # # # # # #
-COMPILE_TESTS = test-elffile-overflow test-elffile-fw_rom_length
+COMPILE_TESTS = test-elffile-overflow test-elffile-fw_rom_length
+COMPILE_TESTS += tests-offsets
all: compile-tests
@@ -65,3 +66,35 @@ test-elffile-fw_rom_length: $(ELFFILE)
else \
echo "[SKIP](Reason: board does not have a ROM_OFFSET configured)" ;\
fi
+
+
+# Test elffiles must not have $(ELFFILE) prerequisite as target specific
+# variables are used for configuration and they also apply to prerequisites.
+#
+# https://www.gnu.org/software/make/manual/make.html#Target_002dspecific
+
+ELFFILES_DEPS = $(BASELIBS) FORCE
+
+
+# Compile elf files with different ROM_OFFSET
+# and verify the offset is taken into account
+
+OFFSETS_TESTS = 0x1000 0x2000
+tests-offsets: $(OFFSETS_TESTS:%=test-offset_%)
+
+.PHONY: test-offset_%
+test-offset_%: $(BINDIR)/$(APPLICATION)_offset_%.elf
+ $(Q)echo -n "Test compilation with offset $*: "
+ $(Q)\
+ TEST_START_ADDR=$$($(PREFIX)readelf --section-headers $^ 2>/dev/null | awk '/.text/{printf "0x%s\n", $$5}'); \
+ EXPECT_START_ADDR=$$(printf "0x%08x" $$(( $(ROM_START_ADDR) + $* ))); \
+ if test $${TEST_START_ADDR} != $${EXPECT_START_ADDR}; then \
+ echo "[ERROR] Linker offset not used $${TEST_START_ADDR} != $${EXPECT_START_ADDR}" >&2; \
+ exit 1;\
+ fi
+ $(Q)echo [OK]
+
+$(BINDIR)/$(APPLICATION)_offset_%.elf: ROM_OFFSET=$*
+$(BINDIR)/$(APPLICATION)_offset_%.elf: $(ELFFILES_DEPS)
+ $(Q)$(_LINK) -o $@
+.PRECIOUS: $(BINDIR)/$(APPLICATION)_offset_%.elf
--
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