6c2c70c61e
The patch Make: use gcc as LD introduced use of GCC wrapper as linker. LD variable references GCC executable now. But when GCC wrapper s used to build relocatable loadable objects (ELF executables and modules) then it causes linking of toolchain default libc and other libraries even when -r is usd. Another problem is that incorrect multiarch variant is selected for libraries search and possibly even for LTO or C++ templates instantiating and other glue code which causes fails during linking if CFLAGS selects non/default miltiarch variant. Corresponding CFLAGS are passed to LDMODULEFLAGS and LDELFFLAGS as well as -nostartfiles -nodefaultlibs options. Separate line is used to easily find and adjust lines if link process is changed in future. Signed-off-by: Pavel Pisa <ppisa@pikron.com>
115 lines
3.8 KiB
Plaintext
115 lines
3.8 KiB
Plaintext
############################################################################
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# boards/arm/cxd56xx/spresense/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)/tools/cxd56/Config.mk
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include $(TOPDIR)/arch/arm/src/armv7-m/Toolchain.defs
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# Setup for the kind of memory that we are executing from
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ifeq ($(CONFIG_CXD56_USE_SYSBUS), y)
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LDSCRIPT = ramconfig-new.ld
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else
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LDSCRIPT = ramconfig.ld
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endif
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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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MKNXFLAT = mknxflat
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LDNXFLAT = ldnxflat
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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 -fno-strength-reduce -fomit-frame-pointer
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endif
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ARCHCFLAGS = -fno-builtin -mabi=aapcs -ffunction-sections -fdata-sections
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ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fno-rtti -std=c++11
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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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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 -Wl,-d -Wl,-warn-common
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NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -Wl,-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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LDMODULEFLAGS += $(CMODULEFLAGS) -nostartfiles -nodefaultlibs
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ifeq ($(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)
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CXXELFFLAGS = $(CXXFLAGS)
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LDELFFLAGS = -r -e main
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LDELFFLAGS += $(CELFFLAGS) -nostartfiles -nodefaultlibs
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ifeq ($(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$(DELIM)gnu-elf.ld
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endif
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LDFLAGS += -Wl,--gc-sections
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ifneq ($(CROSSDEV),arm-nuttx-elf-)
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LDFLAGS += -nostartfiles -nodefaultlibs
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endif
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ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
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CFLAGS += -gdwarf-3
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CXXFLAGS += -gdwarf-3
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LDFLAGS += -g
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endif
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# Output map file with cross reference table
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ifeq ($(CONFIG_CYGWIN_WINTOOL),y)
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LDFLAGS += -Wl,-Map="${shell cygpath -w $(TOPDIR)/nuttx.map}" -Wl,--cref
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else
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LDFLAGS += -Wl,-Map=$(TOPDIR)/nuttx.map -Wl,--cref
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endif
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ifneq ($(CONFIG_ASMP_MEMSIZE),)
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LDFLAGS += -Wl,--defsym=__reserved_ramsize=$(CONFIG_ASMP_MEMSIZE)
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endif
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