85 lines
3.0 KiB
Makefile
85 lines
3.0 KiB
Makefile
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2014 Frantisek Burian <BuFran@seznam.cz>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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ifeq ($(DEVICE),)
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$(warning no DEVICE specified for linker script generator)
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endif
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LDSCRIPT = generated.$(DEVICE).ld
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DEVICES_DATA = $(OPENCM3_DIR)/ld/devices.data
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genlink_family :=$(shell $(OPENCM3_DIR)/scripts/genlink.py $(DEVICES_DATA) $(DEVICE) FAMILY)
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genlink_subfamily :=$(shell $(OPENCM3_DIR)/scripts/genlink.py $(DEVICES_DATA) $(DEVICE) SUBFAMILY)
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genlink_cpu :=$(shell $(OPENCM3_DIR)/scripts/genlink.py $(DEVICES_DATA) $(DEVICE) CPU)
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genlink_fpu :=$(shell $(OPENCM3_DIR)/scripts/genlink.py $(DEVICES_DATA) $(DEVICE) FPU)
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genlink_cppflags :=$(shell $(OPENCM3_DIR)/scripts/genlink.py $(DEVICES_DATA) $(DEVICE) CPPFLAGS)
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CPPFLAGS += $(genlink_cppflags)
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ARCH_FLAGS :=-mcpu=$(genlink_cpu)
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ifeq ($(genlink_cpu),$(filter $(genlink_cpu),cortex-m0 cortex-m0plus cortex-m3 cortex-m4 cortex-m7))
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ARCH_FLAGS +=-mthumb
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endif
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ifeq ($(genlink_fpu),soft)
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ARCH_FLAGS += -msoft-float
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else ifeq ($(genlink_fpu),hard-fpv4-sp-d16)
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ARCH_FLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
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else ifeq ($(genlink_fpu),hard-fpv5-d16)
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ARCH_FLAGS += -mfloat-abi=hard -mfpu=fpv5-d16
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else ifeq ($(genlink_fpu),hard-fpv5-sp-d16)
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ARCH_FLAGS += -mfloat-abi=hard -mfpu=fpv5-sp-d16
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else
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$(warning No match for the FPU flags)
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endif
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ifeq ($(genlink_family),)
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$(warning $(DEVICE) not found in $(DEVICES_DATA))
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endif
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# only append to LDFLAGS if the library file exists to not break builds
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# where those are provided by different means
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ifneq (,$(wildcard $(OPENCM3_DIR)/lib/libopencm3_$(genlink_family).a))
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LIBNAME = opencm3_$(genlink_family)
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else
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ifneq (,$(wildcard $(OPENCM3_DIR)/lib/libopencm3_$(genlink_subfamily).a))
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LIBNAME = opencm3_$(genlink_subfamily)
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else
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$(warning $(OPENCM3_DIR)/lib/libopencm3_$(genlink_family).a library variant for the selected device does not exist.)
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endif
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endif
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LDLIBS += -l$(LIBNAME)
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LIBDEPS += $(OPENCM3_DIR)/lib/lib$(LIBNAME).a
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# only append to LDLIBS if the directory exists
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ifneq (,$(wildcard $(OPENCM3_DIR)/lib))
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LDFLAGS += -L$(OPENCM3_DIR)/lib
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else
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$(warning $(OPENCM3_DIR)/lib as given be OPENCM3_DIR does not exist.)
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endif
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# only append include path to CPPFLAGS if the directory exists
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ifneq (,$(wildcard $(OPENCM3_DIR)/include))
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CPPFLAGS += -I$(OPENCM3_DIR)/include
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else
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$(warning $(OPENCM3_DIR)/include as given be OPENCM3_DIR does not exist.)
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endif
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