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authorStefano Babic <sbabic@denx.de>2015-11-12 17:13:26 +0100
committerStefano Babic <sbabic@denx.de>2015-11-12 17:13:26 +0100
commit5f5620ab2679608f94b3a77e51c77d0a770103bd (patch)
treeec983c06d2f62384909968bb870add121b8a1502 /arch/arm/lib/Makefile
parent78e9ca52edaab74ad645d719676ff4c24d2f462c (diff)
parent038be18fd95aa6283eafb85ceabc0b880976424b (diff)
Merge git://git.denx.de/u-boot
Diffstat (limited to 'arch/arm/lib/Makefile')
-rw-r--r--arch/arm/lib/Makefile24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 2bdfaba5b7..f3db7b58cb 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -60,3 +60,27 @@ obj-$(CONFIG_DEBUG_LL) += debug.o
ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
extra-y += eabi_compat.o
endif
+
+# some files can only build in ARM or THUMB2, not THUMB1
+
+ifdef CONFIG_SYS_THUMB_BUILD
+ifndef CONFIG_HAS_THUMB2
+
+# for C files, just apend -marm, which will override previous -mthumb*
+
+CFLAGS_cache.o := -marm
+CFLAGS_cache-cp15.o := -marm
+
+# For .S, drop -mthumb* and other thumb-related options.
+# CFLAGS_REMOVE_* would not have an effet, so AFLAGS_REMOVE_*
+# was implemented and is used here.
+# Also, define ${target}_NO_THUMB_BUILD for these two targets
+# so that the code knows it should not use Thumb.
+
+AFLAGS_REMOVE_memset.o := -mthumb -mthumb-interwork
+AFLAGS_REMOVE_memcpy.o := -mthumb -mthumb-interwork
+AFLAGS_memset.o := -DMEMSET_NO_THUMB_BUILD
+AFLAGS_memcpy.o := -DMEMCPY_NO_THUMB_BUILD
+
+endif
+endif