6682109668
-mno-red-zone is an option that pretty much every barebone software package (eg. kernel, bootloader, ...) needs to use. We weren't hurt by it yet, but make sure we won't in the future. Change-Id: Ide5b63424ec1be5bf7bcade10540190b9871593b Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/10852 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
154 lines
5.2 KiB
PHP
154 lines
5.2 KiB
PHP
##
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## This file is part of the coreboot project.
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##
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## Copyright (C) 2014 Google Inc
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; version 2 of the License.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program; if not, write to the Free Software
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## Foundation, Inc.
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##
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# ccache integration
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ifeq ($(CONFIG_CCACHE),y)
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CCACHE:=$(word 1,$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH)))))
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ifeq ($(CCACHE),)
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$(error ccache selected, but not found in PATH)
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endif
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export CCACHE_COMPILERCHECK=content
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export CCACHE_BASEDIR=$(top)
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$(foreach arch,$(ARCH_SUPPORTED), \
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$(eval CC_$(arch):=$(CCACHE) $(CC_$(arch))))
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HOSTCC:=$(CCACHE) $(HOSTCC)
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HOSTCXX:=$(CCACHE) $(HOSTCXX)
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ROMCC=$(CCACHE) $(ROMCC_BIN)
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endif
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# scan-build integration
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ifneq ($(CCC_ANALYZER_OUTPUT_FORMAT),)
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ifeq ($(CCC_ANALYZER_ANALYSIS),)
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export CCC_ANALYZER_ANALYSIS := -analyzer-opt-analyze-headers
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endif
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$(foreach arch,$(ARCH_SUPPORTED), \
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$(eval CC_$(arch):=CCC_CC="$(CC_$(arch))" $(CC) ))
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HOSTCC:=CCC_CC="$(HOSTCC)" $(CC)
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HOSTCXX:=CCC_CXX="$(HOSTCXX)" $(CXX)
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ROMCC=CCC_CC="$(ROMCC_BIN)" $(CC)
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endif
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COREBOOT_STANDARD_STAGES := bootblock libverstage verstage romstage ramstage
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MAP-libverstage := verstage
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ARCHDIR-i386 := x86
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ARCHDIR-x86_32 := x86
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ARCHDIR-x86_64 := x86
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ARCHDIR-arm := arm
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ARCHDIR-arm64 := arm64
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ARCHDIR-riscv := riscv
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ARCHDIR-mips := mips
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CFLAGS_arm += -ffunction-sections -fdata-sections
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CFLAGS_arm64 += -ffunction-sections -fdata-sections
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CFLAGS_mips += -mips32r2 -G 0 -ffunction-sections -fdata-sections
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CFLAGS_mips += -mno-abicalls -fno-pic
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CFLAGS_x86_32 += -ffunction-sections -fdata-sections
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CFLAGS_riscv += -ffunction-sections -fdata-sections
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CFLAGS_x86_64 += -mcmodel=large -mno-red-zone
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toolchain_to_dir = \
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$(foreach arch,$(ARCH_SUPPORTED),\
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$(eval CPPFLAGS_$(arch) += \
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-Isrc/arch/$(ARCHDIR-$(arch))/include))
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# set_stage_toolchain: Decides the toolchain to be used by every stage
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# E.g.: If bootblock is x86_32, it sets ARCH-BOOTBLOCK-y = x86_32, whereas
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# ARCH-BOOTBLOCK-n = armv7. Then, ARCH-BOOTBLOCK-y can be used anywhere to
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# decide the compiler toolchain for bootblock stage
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# This step is essential for initializing the toolchain for coreboot standard
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# stages i.e. bootblock, romstage and ramstage, since it acts as the second
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# parameter to create_class_compiler below in init_standard_toolchain
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map_stage = $(strip $(if $(MAP-$(1)),$(MAP-$(1)),$(1)))
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set_stage_toolchain= \
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$(foreach arch,$(ARCH_SUPPORTED),$(eval ARCH-$(1)-$($(shell echo CONFIG_ARCH_$(call map_stage,$(1))_$(arch) | tr '[:lower:]' '[:upper:]')) := $(arch)))
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# create_class_compiler: Used to create compiler tool set for
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# special classes
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# @1: special class
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# @2: compiler set to be used
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# e.g.: smm special class uses i386 as compiler set
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define create_class_compiler
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$(if $(2),,$(error building $(1) without the required toolchain))
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CC_$(1) := $(CC_$(2))
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LD_$(1) := $(LD_$(2))
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NM_$(1) := $(NM_$(2))
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AR_$(1) := $(AR_$(2))
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OBJCOPY_$(1) := $(OBJCOPY_$(2))
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OBJDUMP_$(1) := $(OBJDUMP_$(2))
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STRIP_$(1) := $(STRIP_$(2))
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READELF_$(1) := $(READELF_$(2))
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CFLAGS_$(1) = $$(CFLAGS_common) $$(CFLAGS_$(2))
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CPPFLAGS_$(1) = $$(CPPFLAGS_common) $$(CPPFLAGS_$(2))
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COMPILER_RT_$(1) := $$(COMPILER_RT_$(2))
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COMPILER_RT_FLAGS_$(1) := $$(COMPILER_RT_FLAGS_$(2))
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endef
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# define_class: Allows defining any program as dynamic class and compiler tool
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# set for the same based on the architecture for which the program is to be
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# compiled
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# @1: program (class name)
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# @2: architecture for which the program needs to be compiled
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# IMP: Ensure that define_class is called before any .c or .S files are added to
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# the class of the program. Check subdirs-y for order of subdirectory inclusions
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define define_class
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classes-y += $(1)
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$(eval $(call create_class_compiler,$(1),$(2)))
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endef
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# initialize standard toolchain (CC,AS and others) for give stage
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# @1 : stage for which the toolchain is to be initialized
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init_standard_toolchain = \
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$(eval $(call set_stage_toolchain,$(1))) \
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$(eval $(call create_class_compiler,$(1),$(ARCH-$(1)-y)))
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init_stages = \
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$(foreach stage,$(COREBOOT_STANDARD_STAGES),$(eval $(call init_standard_toolchain,$(stage))))
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$(eval $(call toolchain_to_dir))
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$(call init_stages)
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# Test for coreboot toolchain (except when explicitely not requested)
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ifneq ($(NOCOMPILE),1)
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# only run if we're doing a build (not for tests, kconfig, ...), using gcc
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# rationale: gcc versions by Linux distributions tend to be quite messed up
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COMPILERFAIL:=0
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ifeq ($(CONFIG_COMPILER_GCC),y)
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ifneq ($(CONFIG_ANY_TOOLCHAIN),y)
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$(foreach arch,$(sort $(foreach stage,$(COREBOOT_STANDARD_STAGES),$(ARCH-$(stage)-y))), \
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$(if $(shell $(CC_$(arch)) -v 2>&1 |grep -q "gcc version .*coreboot toolchain" || echo not-coreboot), \
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$(eval COMPILERFAIL:=1)$(warning Please use the coreboot toolchain for '$(arch)' (or prove that your toolchain works))))
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endif
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endif
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endif
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ifeq ($(COMPILERFAIL),1)
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$(error consider building our compilers: make crossgcc)
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endif
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