Makefile.rules_generic

#*******************************************************************************
#   Ledger SDK
#   (c) 2017 Ledger
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#*******************************************************************************


# consider every intermediate target as final to avoid deleting intermediate files
.SECONDARY:

# disable builtin rules that overload the build process (and the debug log !!)
.SUFFIXES:
MAKEFLAGS += -r

SHELL =       /bin/bash

#default building rules
.SECONDEXPANSION:

ifeq ($(shell $(CC) -v 2>&1 | grep clang),)
$(error Compiler is not CLANG)
endif

ifeq ($(shell $(LD) -v 2>&1 | grep clang),)
LD := $(CC)
ifneq ($(shell [ `$(CLANGPATH)clang -v 2>&1 | grep "version " | cut -f3 -d' ' | cut -f1 -d'.'` -ge 7 ] && echo ok),ok)
$(error Requires at least CLANG 7 to link correctly with -fropi -frwpi)
endif
$(info Linker changed to CLANG)
endif

ifeq ($(filter clean,$(MAKECMDGOALS)),)
-include $(DEPEND_FILES)
endif

clean:
	rm -fr obj bin debug dep $(GLYPH_DESTC) $(GLYPH_DESTH)

prepare:
	$(call log, echo Prepare directories)
	@mkdir -p bin obj debug dep

default: bin/app.elf

dep/%.d: %.c $(GLYPH_DESTC) prepare
	@echo "[DEP]  $@"
	@mkdir -p dep
	$(call log,$(call dep_cmdline,$(INCLUDES_PATH), $(DEFINES),$<,$@))

obj/%.o: %.c dep/%.d
	@echo "[CC]	  $@"
	$(call log,$(call cc_cmdline,$(INCLUDES_PATH), $(DEFINES),$<,$@))

obj/%.o: %.s
	@echo "[AS]   $@"
	$(call log,$(call as_cmdline,$(INCLUDES_PATH), $(DEFINES),$<,$@))

bin/app.elf: $(OBJECT_FILES) $(SCRIPT_LD)
	@echo "[LINK] $@"
	$(call log,$(call link_cmdline,$(OBJECT_FILES) $(LDLIBS),$@))
	$(call log,$(GCCPATH)arm-none-eabi-objcopy -O ihex -S bin/app.elf bin/app.hex)
	$(call log,cp bin/app.elf obj)
	$(call log,$(GCCPATH)arm-none-eabi-objdump -S -d bin/app.elf > debug/app.asm)

### BEGIN GCC COMPILER RULES

# link_cmdline(objects,dest)		Macro that is used to format arguments for the linker
link_cmdline = $(LD) $(LDFLAGS) -o $(2) $(1)

# dep_cmdline(include,defines,src($<),dest($@))	Macro that is used to format arguments for the dependency creator
dep_cmdline = $(CC) -M $(CFLAGS) $(addprefix -D,$(2)) $(addprefix -I,$(1)) $(3) | sed 's/\($*\)\.o[ :]*/obj\/\1.o: /g' | sed -e 's/[:\t ][^ ]\+\.c//g' > dep/$(basename $(notdir $(4))).d 2>/dev/null

# cc_cmdline(include,defines,src,dest)	Macro that is used to format arguments for the compiler
cc_cmdline = $(CC) -c $(CFLAGS) $(addprefix -D,$(2)) $(addprefix -I,$(1)) -o $(4) $(3)

as_cmdline = $(AS) -c $(AFLAGS) $(addprefix -D,$(2)) $(addprefix -I,$(1)) -o $(4) $(3)

### END GCC COMPILER RULES