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ARM: fix LTO build for some thumb-interwork cases

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Fix LTO build for some thumb-interwork usecases (such as for
da850evm_defconfig), where inline assmebly such as
  mrc p15,0,r2,c1,c0,0
causes the compiler to fail during LTO linking with
  Error: selected processor does not support `mrc p15,0,r2,c1,c0,0'
         in Thumb mode

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Marek Behún 2021-05-20 13:24:11 +02:00 committed by Tom Rini
parent 86c5e21013
commit e5fc9037dd
2 changed files with 3 additions and 0 deletions
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2
arch/arm/cpu/arm926ejs/Makefile
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@ -25,6 +25,8 @@ ifndef CONFIG_HAS_THUMB2
CFLAGS_cpu.o := -marm
CFLAGS_cache.o := -marm
CFLAGS_REMOVE_cpu.o := $(LTO_CFLAGS)
CFLAGS_REMOVE_cache.o := $(LTO_CFLAGS)
endif
endif

1
arch/arm/lib/Makefile
View file

@ -64,6 +64,7 @@ endif
obj-y += cache.o
obj-$(CONFIG_SYS_ARM_CACHE_CP15) += cache-cp15.o
CFLAGS_REMOVE_cache-cp15.o := $(LTO_CFLAGS)
obj-y += psci-dt.o