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| author | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-06-11 14:17:30 +0200 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-06-21 22:59:20 +0200 |
| commit | c37980c31a30f0623a0ca8f112298e44039ed6bb (patch) | |
| tree | 85af61bd66e05bd9da198f5098ef56f7ebbe34a5 | |
| parent | 7737c994609ffb50194d5ddb67467ae0fcd8f775 (diff) | |
| download | u-boot-imx-c37980c31a30f0623a0ca8f112298e44039ed6bb.zip u-boot-imx-c37980c31a30f0623a0ca8f112298e44039ed6bb.tar.gz u-boot-imx-c37980c31a30f0623a0ca8f112298e44039ed6bb.tar.bz2 | |
arm: ensure u-boot only uses relative relocations
Add a Makefile target ('checkarmreloc') which
fails if the ELF binary contains relocation records
of types other than R_ARM_RELATIVE.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Tested-by: Lubomir Popov <lpopov@mm-sol.com>
Tested-by: Jeroen Hofstee <jeroen@myspectrum.nl>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
| -rw-r--r-- | Makefile | 7 | ||||
| -rw-r--r-- | arch/arm/config.mk | 5 |
2 files changed, 12 insertions, 0 deletions
@@ -743,6 +743,13 @@ tools: $(VERSION_FILE) $(TIMESTAMP_FILE) $(MAKE) -C $@ all endif # config.mk +# ARM relocations should all be R_ARM_RELATIVE. +checkarmreloc: $(obj)u-boot + @if test "R_ARM_RELATIVE" != \ + "`readelf -r $< | cut -d ' ' -f 4 | grep R_ARM | sort -u`"; \ + then echo "$< contains relocations other than \ + R_ARM_RELATIVE"; false; fi + $(VERSION_FILE): @mkdir -p $(dir $(VERSION_FILE)) @( localvers='$(shell $(TOPDIR)/tools/setlocalversion $(TOPDIR))' ; \ diff --git a/arch/arm/config.mk b/arch/arm/config.mk index dc64160..e80e1ed 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -109,3 +109,8 @@ ifeq ($(GAS_BUG_12532),y) PLATFORM_RELFLAGS += -fno-optimize-sibling-calls endif endif + +# check that only R_ARM_RELATIVE relocations are generated +ifneq ($(CONFIG_SPL_BUILD),y) +ALL-y += checkarmreloc +endif |