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link-out-dir = $(out-dir)
link-script = $(TA_DEV_KIT_DIR)/src/ta.ld.S
link-script-pp = $(link-out-dir)/ta.lds
link-script-dep = $(link-out-dir)/.ta.ld.d
SIGN = $(TA_DEV_KIT_DIR)/scripts/sign.py
TA_SIGN_KEY ?= $(TA_DEV_KIT_DIR)/keys/default_ta.pem
all: $(link-out-dir)/$(binary).elf $(link-out-dir)/$(binary).dmp \
$(link-out-dir)/$(binary).stripped.elf $(link-out-dir)/$(binary).ta
cleanfiles += $(link-out-dir)/$(binary).elf $(link-out-dir)/$(binary).dmp
cleanfiles += $(link-out-dir)/$(binary).map
cleanfiles += $(link-out-dir)/$(binary).stripped.elf
cleanfiles += $(link-out-dir)/$(binary).ta
cleanfiles += $(link-script-pp) $(link-script-dep)
link-ldflags = $(LDFLAGS)
link-ldflags += -pie
link-ldflags += -T $(link-script-pp) -Map=$(link-out-dir)/$(binary).map
link-ldflags += --sort-section=alignment
# Macro to reverse a list
reverse = $(if $(wordlist 2,2,$(1)),$(call reverse,$(wordlist 2,$(words $(1)),$(1))) $(firstword $(1)),$(1))
link-ldadd = $(LDADD)
link-ldadd += $(addprefix -L,$(libdirs))
link-ldadd += $(addprefix -l,$(call reverse,$(libnames)))
ldargs-$(binary).elf := $(link-ldflags) $(objs) $(link-ldadd)
link-script-cppflags-$(sm) := -DASM=1 \
$(filter-out $(CPPFLAGS_REMOVE) $(cppflags-remove), \
$(nostdinc$(sm)) $(CPPFLAGS) \
$(addprefix -I,$(incdirs$(sm)) $(link-out-dir)) \
$(cppflags$(sm)))
-include $(link-script-dep)
$(link-script-pp): $(link-script) $(MAKEFILE_LIST)
@$(cmd-echo-silent) ' CPP $@'
$(q)mkdir -p $(dir $@)
$(q)$(CPP$(sm)) -Wp,-P,-MT,$@,-MD,$(link-script-dep) \
$(link-script-cppflags-$(sm)) $< > $@
$(link-out-dir)/$(binary).elf: $(objs) $(libdeps) $(link-script-pp)
@$(cmd-echo-silent) ' LD $@'
$(q)$(LD$(sm)) $(ldargs-$(binary).elf) -o $@
$(link-out-dir)/$(binary).dmp: $(link-out-dir)/$(binary).elf
@$(cmd-echo-silent) ' OBJDUMP $@'
$(q)$(OBJDUMP$(sm)) -l -x -d $< > $@
$(link-out-dir)/$(binary).stripped.elf: $(link-out-dir)/$(binary).elf
@$(cmd-echo-silent) ' OBJCOPY $@'
$(q)$(OBJCOPY$(sm)) --strip-unneeded $< $@
$(link-out-dir)/$(binary).ta: $(link-out-dir)/$(binary).stripped.elf \
$(TA_SIGN_KEY)
@echo ' SIGN $@'
$(q)$(SIGN) --key $(TA_SIGN_KEY) --in $< --out $@
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