52482219c8
Renaming "modlib" to "libelf" is more in line with the implementation content, which makes it easier for individual developers to understand the capabilities of this module. CONFIG_LIBC_MODLIB -> CONFIG_LIBC_ELF Signed-off-by: chao an <anchao.archer@bytedance.com>
221 lines
6.1 KiB
Text
221 lines
6.1 KiB
Text
############################################################################
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# arch/xtensa/src/lx6/Toolchain.defs
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#
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# SPDX-License-Identifier: Apache-2.0
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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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# Supported toolchains
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#
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# Each toolchain definition should set:
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#
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# CROSSDEV The GNU toolchain triple (command prefix)
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# ARCHCPUFLAGS CPU-specific flags selecting the instruction set
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# FPU options, etc.
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# ARCHOPTIMIZATION The optimization level that results in
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# reliable code generation.
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#
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ifeq ($(CONFIG_XTENSA_TOOLCHAIN_XCC), y)
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CROSSDEV = xt-
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endif
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ifeq ($(CONFIG_XTENSA_TOOLCHAIN_XCLANG), y)
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CROSSDEV = xt-
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endif
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ifeq ($(CONFIG_XTENSA_TOOLCHAIN_ESP), y)
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CROSSDEV = xtensa-esp32-elf-
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endif
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ARCHCPUFLAGS = -mlongcalls
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ifeq ($(CONFIG_MM_KASAN_INSTRUMENT_ALL),y)
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ARCHOPTIMIZATION += -fsanitize=kernel-address
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endif
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ifeq ($(CONFIG_MM_KASAN_DISABLE_READS_CHECK),y)
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ARCHOPTIMIZATION += --param asan-instrument-reads=0
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endif
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ifeq ($(CONFIG_MM_KASAN_DISABLE_WRITES_CHECK),y)
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ARCHOPTIMIZATION += --param asan-instrument-writes=0
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endif
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ifeq ($(CONFIG_MM_UBSAN_ALL),y)
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ARCHOPTIMIZATION += $(CONFIG_MM_UBSAN_OPTION)
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endif
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ifeq ($(CONFIG_MM_UBSAN_TRAP_ON_ERROR),y)
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ARCHOPTIMIZATION += -fsanitize-undefined-trap-on-error
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endif
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ifeq ($(CONFIG_DEBUG_CUSTOMOPT),y)
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ARCHOPTIMIZATION += $(CONFIG_DEBUG_OPTLEVEL)
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else ifeq ($(CONFIG_DEBUG_FULLOPT),y)
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ARCHOPTIMIZATION += -Os
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endif
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ifneq ($(CONFIG_DEBUG_NOOPT),y)
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ARCHOPTIMIZATION += -fno-strict-aliasing
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endif
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ifeq ($(CONFIG_FRAME_POINTER),y)
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ARCHOPTIMIZATION += -fno-omit-frame-pointer -fno-optimize-sibling-calls
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else
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ARCHOPTIMIZATION += -fomit-frame-pointer
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endif
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ifeq ($(CONFIG_STACK_CANARIES),y)
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ARCHOPTIMIZATION += -fstack-protector-all
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endif
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ifeq ($(CONFIG_STACK_USAGE),y)
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ARCHOPTIMIZATION += -fstack-usage
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endif
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ifneq ($(CONFIG_STACK_USAGE_WARNING),0)
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ARCHOPTIMIZATION += -Wstack-usage=$(CONFIG_STACK_USAGE_WARNING)
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endif
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# Instrumentation options
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ifeq ($(CONFIG_ARCH_INSTRUMENT_ALL),y)
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ARCHOPTIMIZATION += -finstrument-functions
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endif
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ARCHCFLAGS += -fno-common
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ARCHCXXFLAGS += -fno-common
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ARCHCFLAGS += -Wall -Wstrict-prototypes -Wshadow -Wundef -Wno-attributes -Wno-unknown-pragmas
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ARCHCXXFLAGS += -Wall -Wshadow -Wundef -Wno-attributes -Wno-unknown-pragmas
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# When all C++ code is built using GCC 7.1 or a higher version,
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# we can safely disregard warnings of the type "parameter passing for X changed in GCC 7.1."
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# Refer to : https://stackoverflow.com/questions/48149323/what-does-the-gcc-warning-project-parameter-passing-for-x-changed-in-gcc-7-1-m
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ifneq ($(CONFIG_LIBCXXTOOLCHAIN),y)
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ARCHCXXFLAGS += -nostdinc++
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endif
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ifneq ($(CONFIG_ARCH_TOOLCHAIN_CLANG),y)
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ARCHCFLAGS += -Wno-psabi
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ARCHCXXFLAGS += -Wno-psabi
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endif
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ifneq ($(CONFIG_CXX_STANDARD),)
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ARCHCXXFLAGS += -std=$(CONFIG_CXX_STANDARD)
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endif
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ifneq ($(CONFIG_CXX_EXCEPTION),y)
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ARCHCXXFLAGS += -fno-exceptions -fcheck-new
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endif
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ifneq ($(CONFIG_CXX_RTTI),y)
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ARCHCXXFLAGS += -fno-rtti
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endif
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LDFLAGS += -nostdlib
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SHMODULEFLAGS = -Bsymbolic -G -Bdynamic --entry=__start
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# Optimization of unused sections
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ifeq ($(CONFIG_DEBUG_OPT_UNUSED_SECTIONS),y)
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LDFLAGS += --gc-sections
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ARCHOPTIMIZATION += -ffunction-sections -fdata-sections
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endif
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# Debug link map
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ifeq ($(CONFIG_DEBUG_LINK_MAP),y)
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LDFLAGS += --cref -Map=$(call CONVERT_PATH,$(TOPDIR)$(DELIM)nuttx.map)
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endif
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# Debug --whole-archive
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ifeq ($(CONFIG_DEBUG_LINK_WHOLE_ARCHIVE),y)
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LDFLAGS += --whole-archive
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endif
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ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
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ARCHOPTIMIZATION += $(CONFIG_DEBUG_SYMBOLS_LEVEL)
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endif
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# Default toolchain
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ifeq ($(CONFIG_XTENSA_TOOLCHAIN_XCC), y)
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ARCHCFLAGS += -Wno-atomic-alignment
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ARCHCXXFLAGS += -Wno-atomic-alignment
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CC = $(CROSSDEV)xcc
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CXX = $(CROSSDEV)xc++
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CPP = $(CROSSDEV)xcc -E -P -x c
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else ifeq ($(CONFIG_XTENSA_TOOLCHAIN_XCLANG), y)
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CC = $(CROSSDEV)clang
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CXX = $(CROSSDEV)clang++
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CPP = $(CROSSDEV)clang -E -P -x c
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else
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CC = $(CROSSDEV)gcc
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CXX = $(CROSSDEV)g++
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CPP = $(CROSSDEV)gcc -E -P -x c
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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 = $(CROSSDEV)ar rcs
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NM = $(CROSSDEV)nm
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OBJCOPY = $(CROSSDEV)objcopy
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OBJDUMP = $(CROSSDEV)objdump
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LDFLAGS += --print-memory-usage
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ifeq ($(CONFIG_ARCH_TOOLCHAIN_GNU),y)
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ifeq ($(CONFIG_ARCH_TOOLCHAIN_CLANG),)
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ifeq ($(GCCVER),)
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export GCCVER := $(shell $(CC) --version | grep gcc | sed -E "s/.* ([0-9]+\.[0-9]+).*/\1/" | cut -d'.' -f1)
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endif
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endif
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endif
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# Add the builtin library
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EXTRA_LIBS += $(wildcard $(shell $(CC) $(ARCHCPUFLAGS) --print-libgcc-file-name))
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ifeq ($(CONFIG_LIBM_TOOLCHAIN),y)
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EXTRA_LIBS += $(wildcard $(shell $(CC) $(ARCHCPUFLAGS) --print-file-name=libm.a))
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endif
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ifeq ($(CONFIG_LIBSUPCXX_TOOLCHAIN),y)
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EXTRA_LIBS += $(wildcard $(shell $(CC) $(ARCHCPUFLAGS) --print-file-name=libsupc++.a))
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endif
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ifeq ($(CONFIG_COVERAGE_TOOLCHAIN),y)
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EXTRA_LIBS += $(wildcard $(shell $(CC) $(ARCHCPUFLAGS) --print-file-name=libgcov.a))
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endif
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# Loadable module definitions
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CMODULEFLAGS = $(CFLAGS) -fvisibility=hidden -mtext-section-literals
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LDMODULEFLAGS = -r -T $(call CONVERT_PATH,$(TOPDIR)/libs/libc/elf/gnu-elf.ld)
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# ELF module definitions
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CELFFLAGS = $(CFLAGS) -fvisibility=hidden -mtext-section-literals
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CXXELFFLAGS = $(CXXFLAGS) -fvisibility=hidden -mtext-section-literals
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LDELFFLAGS = -r -e __start
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LDELFFLAGS += -T $(call CONVERT_PATH,$(TOPDIR)$(DELIM)libs$(DELIM)libc$(DELIM)elf$(DELIM)gnu-elf.ld)
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