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boot/shim: force arm mode instead of Thumb mode

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Use OPTIMIZATIONS parameter to pass -marm to fix the following build
failure in Thumb mode:

/tmp/ccEjPM4h.s:941: Error: selected processor does not support `mrc p15,0,r2,c9,c13,0' in Thumb mode

CFLAGS can't be overridden as it is defined as:
CFLAGS		= $(FEATUREFLAGS) \
		  $(OPTIMIZATIONS) \
		  $(WARNFLAGS) \
		  $(if $(findstring clang,$(CC)),$(CLANG_WARNINGS)) \
		  $(ARCH_CFLAGS) \
		  $(WERRFLAGS) \
		  $(INCLUDES) \
		  $(DEFINES)

Fixes:
 - http://autobuild.buildroot.org/results/580156f89cfd72122fef07aa2fe37b4fdd4c316b
 - http://autobuild.buildroot.org/results/8980c0f422516c7263d8d0c9cc6123f30c4b7ee4

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Fabrice Fontaine 2024-02-29 22:56:41 +01:00 committed by Peter Korsgaard
parent 382a157dc0
commit 66a202325a
1 changed files with 10 additions and 1 deletions
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11
boot/shim/shim.mk
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@ -13,10 +13,19 @@ SHIM_CPE_ID_VENDOR = redhat
SHIM_INSTALL_TARGET = NO
SHIM_INSTALL_IMAGES = YES
SHIM_CFLAGS = $(TARGET_CFLAGS)
SHIM_MAKE_OPTS = \
ARCH="$(GNU_EFI_PLATFORM)" \
CROSS_COMPILE="$(TARGET_CROSS)" \
DASHJ="-j$(PARALLEL_JOBS)"
DASHJ="-j$(PARALLEL_JOBS)" \
OPTIMIZATIONS="$(SHIM_CFLAGS)"
# shim has some assembly function that is not present in Thumb mode:
# Error: selected processor does not support `mrc p15,0,r2,c9,c13,0' in Thumb mode
# so, we desactivate Thumb mode
ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB),y)
SHIM_CFLAGS += -marm
endif
define SHIM_BUILD_CMDS
$(TARGET_CONFIGURE_OPTS) $(MAKE) -C $(@D) $(SHIM_MAKE_OPTS)