nuttx/boards/arm/tiva/lm3s6965-ek/scripts/Make.defs

############################################################################
# boards/arm/tiva/lm3s6965-ek/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/arm/src/armv7-m/Toolchain.defs

ifeq ($(CONFIG_ARM_TOOLCHAIN_ARMCLANG),y)
  ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)ld.sct
else
  ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)ld.script
endif

ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
ifeq ($(CONFIG_NXFLAT),y)
  # mpic-data-is-text-relative flag first time appeared in GCC source code tree on 2016-Jul-12
  # and it was included in GCC 4.9.4 release on 2016-Aug-03.
  ARCHCC_HAS_PIC_DATA_IS_TEXT_RELATIVE_FLAG = ${shell $(CC) --target-help 2>&1 | grep -c "mpic-data-is-text-relative"}

  # Turn off -mpic-data-is-text-relative flag to access bss via the GOT
  # (https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=139630111)
  ifneq ($(ARCHCC_HAS_PIC_DATA_IS_TEXT_RELATIVE_FLAG),0)
    ARCHPICFLAGS += -mno-pic-data-is-text-relative
  endif
endif

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

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

# Loadable module definitions

CMODULEFLAGS = $(CFLAGS) -mlong-calls # --target1-abs

LDMODULEFLAGS = -r -e module_initialize
LDMODULEFLAGS += -T $(call CONVERT_PATH,$(TOPDIR)/libs/libc/modlib/gnu-elf.ld)

# ELF module definitions

CELFFLAGS = $(CFLAGS) -mlong-calls
CXXELFFLAGS = $(CXXFLAGS) -mlong-calls

LDELFFLAGS = -r -e main
LDELFFLAGS += -T $(call CONVERT_PATH,$(TOPDIR)/binfmt/libelf/gnu-elf.ld)