#                TRACE32 Remote API
#      Copyright (c) 1998-2020 Lauterbach GmbH
#                All rights reserved
#
#                    GNU Makefile

CROSS_COMPILE ?=
empty :=
space := $(empty) $(empty)

GCC_MACHINE := $(shell $(CROSS_COMPILE)gcc -dumpmachine)
GCC_ARCH    := $(word 1,$(subst -,$(space),$(GCC_MACHINE)))
ifeq ($(GCC_MACHINE),arm-linux-gnueabihf)
  GCC_ARCH  := armhf
endif
GCC_OS      := $(word 2,$(subst -,$(space),$(GCC_MACHINE)))

OS_NAME     ?= $(GCC_OS)
ARCH_NAME   ?= $(GCC_ARCH)

CC := $(CROSS_COMPILE)gcc
RM := rm
MKDIR := mkdir
CFLAGS  := -pipe -c -MMD -MP -fPIC -Wall -Wextra -Wno-missing-field-initializers -O2 -g -DENABLE_NOTIFICATION 
LDFLAGS := -shared
CFLAGS-arm    :=
CFLAGS-armhf  :=
CFLAGS-aarch64:=
CFLAGS-x86    := -m32
CFLAGS-x86_64 := -m64
ifneq ($(findstring $(ARCH_NAME),arm armhf),)
CFLAGS32 := $(CFLAGS-$(ARCH_NAME))
CFLAGS64 :=
TARGETS  := rel32
ODIR32   := linux-$(ARCH_NAME)
ODIR64   :=
else ifneq ($(findstring $(ARCH_NAME),aarch64),)
CFLAGS32 :=
CFLAGS64 := $(CFLAGS-$(ARCH_NAME))
TARGETS  := rel64
ODIR32   :=
ODIR64   := linux-$(ARCH_NAME)
else
CFLAGS32 := $(CFLAGS-x86)
CFLAGS64 := $(CFLAGS-x86_64)
TARGETS  := rel32 rel64
ODIR32   := linux
ODIR64   := linux64
endif
SDIR := ../src
TARGETLIB32 := t32api.so
TARGETLIB64 := t32api64.so

SRCS := hremote.c hlinknet.c
DEPS := $(SRCS:%.c=%.d)
OBJS := $(SRCS:%.c=%.o)

OBJS32 := $(addprefix $(ODIR32)/,$(OBJS))
OBJS64 := $(addprefix $(ODIR64)/,$(OBJS))
DEPS32 := $(addprefix $(ODIR32)/,$(DEPS))
DEPS64 := $(addprefix $(ODIR64)/,$(DEPS))

.PHONY: help
help:
	@echo
	@echo make help ... show this help
	@echo make all .... same as make rel
	@echo make rel .... build t32api.so and t32api64.so
ifneq ($(findstring rel32,$(TARGETS)),)
	@echo make rel32 .. build t32api.so
endif
ifneq ($(findstring rel64,$(TARGETS)),)
	@echo make rel64 .. build t32api64.so
endif
	@echo make clean .. delete directories $(ODIR32) $(ODIR64)
	@echo

.PHONY: all
all: rel

rel: $(TARGETS)

rel32: $(ODIR32)/$(TARGETLIB32)

rel64: $(ODIR64)/$(TARGETLIB64)

$(ODIR64) $(ODIR32):
	$(MKDIR) $@

$(ODIR32)/$(TARGETLIB32): $(OBJS32)
	$(CC) $(LDFLAGS) $(CFLAGS32) -o $@ $^

$(ODIR64)/$(TARGETLIB64): $(OBJS64)
	$(CC) $(LDFLAGS) $(CFLAGS64) -o $@ $^

$(ODIR32)/%.o : $(SDIR)/%.c | $(ODIR32)
	$(CC) $(CFLAGS) $(CFLAGS32) -I$(SDIR) -o $@ $<

$(ODIR64)/%.o : $(SDIR)/%.c | $(ODIR64)
	$(CC) $(CFLAGS) $(CFLAGS64) -I$(SDIR) -o $@ $<

-include $(DEPS32) $(DEPS64)

.PHONY: clean extraclean
clean extraclean:
	-$(RM) -rf $(ODIR32) $(ODIR64)