5d540f45da
This is a change suggested by Xiao Xiang in an email thread. Some make variables with depend on forking and shell and running a script to get the value of the variable. Using := we can force the calculation to occur only once. This leads to a small but consistent improvement in build performance. This change really applies to ALL Make.defs files but is applied only to one here so that it can be thoroughly verified and possbily leveraged to other Make.defs files in the future.
128 lines
4.4 KiB
Plaintext
128 lines
4.4 KiB
Plaintext
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# boards/arm/stm32/stm32f4discovery/scripts/Make.defs
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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include $(TOPDIR)/.config
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include $(TOPDIR)/tools/Config.mk
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include $(TOPDIR)/arch/arm/src/armv7-m/Toolchain.defs
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LDSCRIPT = ld.script
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CINCPATH := ${shell $(INCDIR) -s "$(CC)" $(TOPDIR)$(DELIM)include}
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CXXINCPATH := ${shell $(INCDIR) -s "$(CC)" $(TOPDIR)$(DELIM)include$(DELIM)cxx}
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ARCHINCLUDES += $(CINCPATH)
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ARCHXXINCLUDES += $(CINCPATH) $(CXXINCPATH)
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ifeq ($(CONFIG_CYGWIN_WINTOOL),y)
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ARCHSCRIPT = -T "${shell cygpath -w $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
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else
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ARCHSCRIPT = -T$(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
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endif
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LD = $(CROSSDEV)ld
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STRIP = $(CROSSDEV)strip --strip-unneeded
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AR = $(ARCROSSDEV)ar rcs
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NM = $(ARCROSSDEV)nm
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OBJCOPY = $(CROSSDEV)objcopy
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OBJDUMP = $(CROSSDEV)objdump
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ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
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ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
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ARCHOPTIMIZATION = -g
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endif
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ifneq ($(CONFIG_DEBUG_NOOPT),y)
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ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fomit-frame-pointer
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endif
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ARCHCFLAGS = -fno-builtin
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ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new
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ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
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ARCHWARNINGSXX = -Wall -Wshadow -Wundef
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ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
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ifeq ($(CONFIG_ARMV7M_TOOLCHAIN_CLANGL),y)
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ARCHCCVERSION = {shell $(CC) -v 2>&1 | sed -n '/clang version/p' | sed -e 's/.* clang version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g'}
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HOSTCC = clang
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CC = clang
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CXX = clang++
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CPP = clang -E
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ARCHCFLAGS += -nostdlib -ffreestanding -target arm-none-eabi -march=armv7-m -mcpu=cortex-m4
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ARCHCXXFLAGS += -nostdlib -ffreestanding -target arm-none-eabi -march=armv7-m -mcpu=cortex-m4 -DCONFIG_WCHAR_BUILTIN
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else
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ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
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HOSTCC = gcc
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CC = $(CROSSDEV)gcc
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CXX = $(CROSSDEV)g++
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CPP = $(CROSSDEV)gcc -E
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ARCHCFLAGS += -funwind-tables
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ARCHCXXFLAGS += -fno-rtti -funwind-tables
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ifneq ($(CONFIG_DEBUG_NOOPT),y)
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ARCHOPTIMIZATION += -fno-strength-reduce
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endif
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endif
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CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
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CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
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CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
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CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
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CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
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AFLAGS = $(CFLAGS) -D__ASSEMBLY__
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NXFLATLDFLAGS1 = -r -d -warn-common
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NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
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LDNXFLATFLAGS = -e main -s 2048
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# Loadable module definitions
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CMODULEFLAGS = $(CFLAGS) -mlong-calls # --target1-abs
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LDMODULEFLAGS = -r -e module_initialize
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ifeq ($(CONFIG_CYGWIN_WINTOOL),y)
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LDMODULEFLAGS += -T "${shell cygpath -w $(TOPDIR)/libs/libc/modlib/gnu-elf.ld}"
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else
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LDMODULEFLAGS += -T $(TOPDIR)/libs/libc/modlib/gnu-elf.ld
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endif
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# ELF module definitions
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CELFFLAGS = $(CFLAGS) -mlong-calls # --target1-abs
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CXXELFFLAGS = $(CXXFLAGS) -mlong-calls # --target1-abs
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LDELFFLAGS = -r -e main
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ifeq ($(CONFIG_CYGWIN_WINTOOL),y)
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LDELFFLAGS += -T "${shell cygpath -w $(BOARD_DIR)$(DELIM)scripts$(DELIM)gnu-elf.ld}"
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else
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LDELFFLAGS += -T $(BOARD_DIR)$(DELIM)scripts$(DELIM)gnu-elf.ld
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endif
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ifneq ($(CROSSDEV),arm-nuttx-elf-)
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LDFLAGS += -nostartfiles -nodefaultlibs
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endif
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ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
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LDFLAGS += -g
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endif
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HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe
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