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Diffstat (limited to 'toolchain.inc')
| -rw-r--r-- | toolchain.inc | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/toolchain.inc b/toolchain.inc new file mode 100644 index 0000000000..649d2033bb --- /dev/null +++ b/toolchain.inc @@ -0,0 +1,89 @@ +## +## This file is part of the coreboot project. +## +## Copyright (C) 2014 Google Inc +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; version 2 of the License. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## + +ARCH_SUPPORTED := ARMV7 X86_32 + +ARCH_TO_TOOLCHAIN_X86_32 := x86_32 +ARCH_TO_TOOLCHAIN_ARMV7 := armv7 + +COREBOOT_STANDARD_STAGES := bootblock romstage ramstage + +ARCHDIR-i386 := x86 +ARCHDIR-x86_32 := x86 +ARCHDIR-armv7 := armv7 + +CFLAGS_armv7 = \ + -ffixed-r8\ + -march=armv7-a\ + -marm\ + -mno-unaligned-access\ + -mthumb\ + -mthumb-interwork + +toolchain_to_dir = \ + $(foreach arch,$(ARCH_SUPPORTED),\ + $(eval INCLUDES_$(ARCH_TO_TOOLCHAIN_$(arch)) = \ + -Isrc/arch/$(ARCHDIR-$(ARCH_TO_TOOLCHAIN_$(arch)))/include)) + +# set_stage_toolchain: Decides the toolchain to be used by every stage +# E.g.: If bootblock is x86_32, it sets ARCH-BOOTBLOCK-y = x86_32, whereas +# ARCH-BOOTBLOCK-n = armv7. Then, ARCH-BOOTBLOCK-y can be used anywhere to +# decide the compiler toolchain for bootblock stage +# This step is essential for initializing the toolchain for coreboot standard +# stages i.e. bootblock, romstage and ramstage, since it acts as the second +# parameter to create_class_compiler below in init_standard_toolchain +set_stage_toolchain= \ + $(foreach arch,$(ARCH_SUPPORTED),$(eval ARCH-$(1)-$(CONFIG_ARCH_$(1)_$(arch)) := $(ARCH_TO_TOOLCHAIN_$(arch)))) + +# create_class_compiler: Used to create compiler tool set for +# special classes +# @1: special class +# @2: compiler set to be used +# e.g.: smm special class uses i386 as compiler set +define create_class_compiler +CC_$(1) := $(CC_$(2)) +LD_$(1) := $(LD_$(2)) +NM_$(1) := $(NM_$(2)) +OBJCOPY_$(1) := $(OBJCOPY_$(2)) +OBJDUMP_$(1) := $(OBJDUMP_$(2)) +STRIP_$(1) := $(STRIP_$(2)) +READELF_$(1) := $(READELF_$(2)) +INCLUDES_$(1) = -Isrc/arch/$(ARCHDIR-$(2))/include +CFLAGS_$(1) = $$(CFLAGS_common) $$(INCLUDES_$(1)) $(CFLAGS_$(2)) +LIBGCC_FILE_NAME_$(1) = $(shell test -r `$(CC_$(2)) -print-libgcc-file-name` && \ + $(CC_$(2)) -print-libgcc-file-name) +endef + +# initialize standard toolchain (CC,AS and others) for give stage +# @1 : stage for which the toolchain is to be initialized +init_standard_toolchain = \ + $(eval stage_caps := $(shell tr '[:lower:]' '[:upper:]' <<< $(1))) \ + $(eval $(call set_stage_toolchain,$(stage_caps))) \ + $(eval $(call create_class_compiler,$(1),$(ARCH-$(stage_caps)-y))) \ + $(eval $(call set_stage_libgcc,$(1))) + +init_stages = \ + $(foreach stage,$(COREBOOT_STANDARD_STAGES),$(eval $(call init_standard_toolchain,$(stage)))) + +# This mapping is created to have consistency with xcompile naming +$(eval $(call create_class_compiler,x86_32,i386)) + +$(eval $(call toolchain_to_dir)) + +$(call init_stages) |