############################################################################
# boards/risc-v/bl602/bl602evb/scripts/Make.defs
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.  The
# ASF licenses this file to you 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.
#
############################################################################

include $(TOPDIR)/.config
include $(TOPDIR)/tools/Config.mk
include $(TOPDIR)/arch/risc-v/src/rv32im/Toolchain.defs

ARCH_SRCDIR = $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src
ARCH_INCDIR = $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)include

LDSCRIPT = ld.script

ifeq ($(CONFIG_CYGWIN_WINTOOL),y)
  ARCHSCRIPT = -T "${shell cygpath -w $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
else
  ARCHSCRIPT = -T$(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
endif

ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
  ARCHOPTIMIZATION = -g
  ASARCHCPUFLAGS += -Wa,-g
endif

MAXOPTIMIZATION = -Os

ifneq ($(CONFIG_DEBUG_NOOPT),y)
  ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce 
endif

ARCHCPUFLAGS = -march=rv32imafc -mabi=ilp32f -mno-relax
ARCHCFLAGS = -fno-builtin -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -fshort-enums -fno-omit-frame-pointer
ARCHCXXFLAGS = -fno-builtin -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -fshort-enums -fno-omit-frame-pointer -fno-exceptions -fcheck-new -std=c++17 -D__NuttX__ -pipe -nostdinc++
ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
ARCHWARNINGSXX = -Wall -Wshadow -Wundef
ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10

ifeq ($(CONFIG_STACK_OVERFLOW_CHECK),y)
  ARCHCFLAGS += -finstrument-functions -ffixed-s11
endif

ARCHDEFINES += -DARCH_RISCV

CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
AFLAGS += $(CFLAGS) -D__ASSEMBLY__ $(ASARCHCPUFLAGS)

NXFLATLDFLAGS1 = -r -d -warn-common
NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
LDNXFLATFLAGS = -e main -s 2048

# ELF module definitions

CELFFLAGS = $(CFLAGS) -fno-common
CXXELFFLAGS = $(CXXFLAGS) -fno-common

LDELFFLAGS = -melf32lriscv -r -e main
ifeq ($(CONFIG_CYGWIN_WINTOOL),y)
  LDELFFLAGS += -T "${shell cygpath -w $(BOARD_DIR)$(DELIM)scripts$(DELIM)gnu-elf.ld}"
else
  LDELFFLAGS += -T $(BOARD_DIR)$(DELIM)scripts$(DELIM)gnu-elf.ld
endif

LDFLAGS += --gc-sections -melf32lriscv --cref
LDFLAGS += -Map=$(TOPDIR)/nuttx.map