export SHELLOPTS := igncr

CPUR := -march=armv7-r -marm -mlittle-endian -mfloat-abi=soft
CPUM := -march=armv7-m -mthumb -mfix-cortex-m3-ldrd -mlittle-endian -mrestrict-it
AOPT := -g3 -Wall -Wa,--gdwarf2 -xassembler-with-cpp -c
COPT := -std=c99 -g3 -O0 -fno-jump-tables -ffunction-sections -fdata-sections -Wall -c
INCLUDEDIR := . arm
LOPT := -g -Wall -Wl,--nmagic -nodefaultlibs -nostartfiles -Wl,--gc-sections -Wl,--entry=_start
LIBS := -lgcc -lc
ECAOPT := -m32
VPATH := .

CCGRP := arm-none-eabi-
NAME  := coverage

MIRRORROOT_FULL := instrumented/full/arm
MIRRORROOT_TARGETED := instrumented/targeted/arm

.PHONY: all clean
.PRECIOUS: $(MIRRORROOT_FULL)/%.c $(MIRRORROOT_TARGETED)/cr/%.c $(MIRRORROOT_TARGETED)/cm/%.c
.SECONDARY: $(NAME)_arm_cr.json $(NAME)_arm_cm.json

all: $(NAME)_arm_cr.elf $(NAME)_arm_cr_flash.elf $(NAME)_arm_cm.elf \
     $(NAME)_arm_cr_instr_full.elf $(NAME)_arm_cr_flash_instr_full.elf $(NAME)_arm_cm_instr_full.elf \
     $(NAME)_arm_cr_instr_targeted.elf $(NAME)_arm_cr_flash_instr_targeted.elf $(NAME)_arm_cm_instr_targeted.elf \
     $(NAME).c.eca


$(MIRRORROOT_FULL) $(MIRRORROOT_TARGETED)/cr $(MIRRORROOT_TARGETED)/cm:
	mkdir --parents $@


%.c.eca: %.c
	$(ECAGRP)/t32cast eca $(ECAOPT) --export-cfg -o $@ $^

arm/t32pp.c:
	$(ECAGRP)/t32cast instrument --mode=mcdc --gen-instr-source-files --probe-dir=arm

%.json: %.elf $(NAME).c.eca
	$(ECAGRP)/t32marm -c ./scripts/config_t32cast.t32 -s ./scripts/detect-obs-gaps.cmm $< $@

$(MIRRORROOT_FULL)/%.c: %.c
	$(ECAGRP)/t32cast instrument --mode=mcdc $(ECAOPT) -o $(MIRRORROOT_FULL)/$^ $^

$(MIRRORROOT_TARGETED)/cr/%.c: %.c %_arm_cr.json
	$(ECAGRP)/t32cast instrument --mode=mcdc  --probe-dir=arm --filter=$(filter-out $<,$^) $(ECAOPT) -o $@ $<

$(MIRRORROOT_TARGETED)/cm/%.c: %.c %_arm_cm.json
	$(ECAGRP)/t32cast instrument --mode=mcdc  --probe-dir=arm --filter=$(filter-out $<,$^) $(ECAOPT) -o $@ $<


%.armv7r.o: %.c $(MAKEFILE_LIST)
	$(CCGRP)gcc $(COPT) $(CPUR) $(addprefix -I ,$(INCLUDEDIR)) -o $@ $<

arm/%.armv7r.o: %.c $(MAKEFILE_LIST)
	$(CCGRP)gcc $(COPT) $(CPUR) $(addprefix -I ,$(INCLUDEDIR)) -o $@ $<

%.thumb2.o: %.c $(MAKEFILE_LIST)
	$(CCGRP)gcc $(COPT) $(CPUM) $(addprefix -I ,$(INCLUDEDIR)) -o $@ $<

arm/%.thumb2.o: %.c $(MAKEFILE_LIST)
	$(CCGRP)gcc $(COPT) $(CPUM) $(addprefix -I ,$(INCLUDEDIR)) -o $@ $<

%.armv7r.o: %.sx $(MAKEFILE_LIST)
	$(CCGRP)gcc $(AOPT) $(CPUR) $(addprefix -I ,$(INCLUDEDIR)) -o $@ $<

%.thumb2.o: %.sx $(MAKEFILE_LIST)
	$(CCGRP)gcc $(AOPT) $(CPUM) $(addprefix -I ,$(INCLUDEDIR)) -o $@ $<

%.armv7r.flash.o: %.sx $(MAKEFILE_LIST)
	$(CCGRP)gcc $(AOPT) $(CPUR) -D FLASHSTART -o $@ $<


$(MIRRORROOT_FULL)/%.armv7r.o: $(MIRRORROOT_FULL)/%.c $(MAKEFILE_LIST) | $(MIRRORROOT_FULL)
	$(CCGRP)gcc $(COPT) $(CPUR) $(addprefix -I ,$(INCLUDEDIR)) -include t32pp.h -o $@ $<

$(MIRRORROOT_FULL)/%.thumb2.o: $(MIRRORROOT_FULL)/%.c $(MAKEFILE_LIST) | $(MIRRORROOT_FULL)
	$(CCGRP)gcc $(COPT) $(CPUM) $(addprefix -I ,$(INCLUDEDIR)) -include t32pp.h -o $@ $<

$(MIRRORROOT_FULL)/%.armv7r.o: %.sx $(MAKEFILE_LIST)
	$(CCGRP)gcc $(AOPT) $(CPUR) -o $@ $<

$(MIRRORROOT_FULL)/%.thumb2.o: %.sx $(MAKEFILE_LIST)
	$(CCGRP)gcc $(AOPT) $(CPUM) -o $@ $<

$(MIRRORROOT_FULL)/%.armv7r.flash.o: %.sx $(MAKEFILE_LIST)
	$(CCGRP)gcc $(AOPT) $(CPUR) -D FLASHSTART -o $@ $<

$(MIRRORROOT_TARGETED)/cr/%.armv7r.o: $(MIRRORROOT_TARGETED)/cr/%.c $(MAKEFILE_LIST) | $(MIRRORROOT_TARGETED)/cr
	$(CCGRP)gcc $(COPT) $(CPUR) $(addprefix -I ,$(INCLUDEDIR)) -include t32pp.h -o $@ $<

$(MIRRORROOT_TARGETED)/cm/%.thumb2.o: $(MIRRORROOT_TARGETED)/cm/%.c $(MAKEFILE_LIST) | $(MIRRORROOT_TARGETED)/cm
	$(CCGRP)gcc $(COPT) $(CPUM) $(addprefix -I ,$(INCLUDEDIR)) -include t32pp.h -o $@ $<


arm/flash.ld: arm/link.lds $(MAKEFILE_LIST)
	$(CCGRP)cpp -P -o $@ $< -D FLASHSTART -D RAMSTART=0x08000000 -D RAMSIZE=32K -D FLASHSIZE=128K

arm/sram.ld: arm/link.lds $(MAKEFILE_LIST)
	$(CCGRP)cpp -P -o $@ $< -D RAMSTART=0x08000000 -D RAMSIZE=32K

arm/sram_cm.ld: arm/link.lds $(MAKEFILE_LIST)
	$(CCGRP)cpp -P -o $@ $< -D RAMSTART=0x20000000 -D RAMSIZE=32K


$(NAME)_arm_cr_flash.elf: $(addprefix arm/,flash.ld crt0.armv7r.flash.o main.armv7r.o $(NAME).armv7r.o)
	$(CCGRP)gcc $(LOPT) $(CPUR) -o $@ -T $^ -Wl,--start-group $(LIBS) -Wl,--end-group

$(NAME)_arm_cr.elf: $(addprefix arm/,sram.ld crt0.armv7r.o main.armv7r.o $(NAME).armv7r.o)
	$(CCGRP)gcc $(LOPT) $(CPUR) -o $@ -T $^ -Wl,--start-group $(LIBS) -Wl,--end-group

$(NAME)_arm_cm.elf: $(addprefix arm/,sram_cm.ld crt0.thumb2.o main.thumb2.o $(NAME).thumb2.o)
	$(CCGRP)gcc $(LOPT) $(CPUM) -o $@ -T $^ -Wl,--start-group $(LIBS) -Wl,--end-group


$(NAME)_arm_cr_flash_instr_full.elf: $(addprefix arm/,flash.ld crt0.armv7r.flash.o main.armv7r.o t32pp.armv7r.o) $(MIRRORROOT_FULL)/$(NAME).armv7r.o
	$(CCGRP)gcc $(LOPT) $(CPUR) -o $@ -T $^ -Wl,--start-group $(LIBS) -Wl,--end-group

$(NAME)_arm_cr_instr_full.elf: $(addprefix arm/,sram.ld crt0.armv7r.o main.armv7r.o t32pp.armv7r.o) $(MIRRORROOT_FULL)/$(NAME).armv7r.o
	$(CCGRP)gcc $(LOPT) $(CPUR) -o $@ -T $^ -Wl,--start-group $(LIBS) -Wl,--end-group

$(NAME)_arm_cm_instr_full.elf: $(addprefix arm/,sram_cm.ld crt0.thumb2.o main.thumb2.o t32pp.thumb2.o) $(MIRRORROOT_FULL)/$(NAME).thumb2.o
	$(CCGRP)gcc $(LOPT) $(CPUM) -o $@ -T $^ -Wl,--start-group $(LIBS) -Wl,--end-group

$(NAME)_arm_cr_flash_instr_targeted.elf: $(addprefix arm/,flash.ld crt0.armv7r.flash.o main.armv7r.o t32pp.armv7r.o) $(MIRRORROOT_TARGETED)/cr/$(NAME).armv7r.o
	$(CCGRP)gcc $(LOPT) $(CPUR) -o $@ -T $^ -Wl,--start-group $(LIBS) -Wl,--end-group

$(NAME)_arm_cr_instr_targeted.elf: $(addprefix arm/,sram.ld crt0.armv7r.o main.armv7r.o t32pp.armv7r.o) $(MIRRORROOT_TARGETED)/cr/$(NAME).armv7r.o
	$(CCGRP)gcc $(LOPT) $(CPUR) -o $@ -T $^ -Wl,--start-group $(LIBS) -Wl,--end-group

$(NAME)_arm_cm_instr_targeted.elf: $(addprefix arm/,sram_cm.ld crt0.thumb2.o main.thumb2.o t32pp.thumb2.o) $(MIRRORROOT_TARGETED)/cm/$(NAME).thumb2.o
	$(CCGRP)gcc $(LOPT) $(CPUM) -o $@ -T $^ -Wl,--start-group $(LIBS) -Wl,--end-group


clean:
	-rm -fv arm/*.o
	-rm -fv arm/t32pp.*
	-rm -fv *.elf
	-rm -fv *.eca
	-rm -fv *.json
	-rm -fv $(MIRRORROOT_FULL)/*.*
	-rm -fv $(MIRRORROOT_TARGETED)/cm/*.*
	-rm -fv $(MIRRORROOT_TARGETED)/cr/*.*