Compiling on ARMv7-M fails when trying to address the CPSR register which is not available on this architecture.
Atomic functions refer to the CPSR register if compiled with arch/arm/include/asm/proc-armv/system.h. On ARMv7-M we should hence use arch/arm/thumb1/include/asm/proc-armv/system.h instead.
Cf. https://stackoverflow.com/questions/61097841/error-selected-processor-does-n...
Reported-by: Sicris Rey Embay sicris.embay@gmail.com Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- Makefile | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/Makefile b/Makefile index 8de5ff6d94..4690eb5b87 100644 --- a/Makefile +++ b/Makefile @@ -701,13 +701,15 @@ KBUILD_CFLAGS += $(KCFLAGS) # Use UBOOTINCLUDE when you must reference the include/ directory. # Needed to be compatible with the O= option UBOOTINCLUDE := \ - -Iinclude \ - $(if $(KBUILD_SRC), -I$(srctree)/include) \ - $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ - $(if $(CONFIG_HAS_THUMB2),, \ - -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ - -I$(srctree)/arch/$(ARCH)/include \ - -include $(srctree)/include/linux/kconfig.h + -Iinclude \ + $(if $(KBUILD_SRC), -I$(srctree)/include) \ + $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ + $(if $(CONFIG_HAS_THUMB2), \ + $(if $(CONFIG_CPU_V7M), \ + -I$(srctree)/arch/arm/thumb1/include), \ + -I$(srctree)/arch/arm/thumb1/include)) \ + -I$(srctree)/arch/$(ARCH)/include \ + -include $(srctree)/include/linux/kconfig.h
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) CHECKFLAGS += $(NOSTDINC_FLAGS) -- 2.25.1