27940f8916
Verstage will host vboot2 for firmware verification. It's a stage in the sense that it has its own set of toolchains, compiler flags, and includes. This allows us to easily add object files as needed. But it's directly linked to bootblock. This allows us to avoid code duplication for stage loading and jumping (e.g. cbfs driver) for the boards where bootblock has to run in a different architecture (e.g. Tegra124). To avoid name space conflict, verstage symbols are prefixed with verstage_. TEST=Built with VBOOT2_VERIFY_FIRMWARE on/off. Booted Nyan Blaze. BUG=None BRANCH=none Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Change-Id: Iad57741157ec70426c676e46c5855e6797ac1dac Reviewed-on: https://chromium-review.googlesource.com/204376 Reviewed-by: Randall Spangler <rspangler@chromium.org>
91 lines
3.4 KiB
PHP
91 lines
3.4 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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##
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#######################################################################
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ARCH_SUPPORTED := ARM ARM64 X86_32
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ARCH_TO_TOOLCHAIN_X86_32 := x86_32
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ARCH_TO_TOOLCHAIN_ARM := arm
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ARCH_TO_TOOLCHAIN_ARM64 := arm64
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COREBOOT_STANDARD_STAGES := bootblock verstage romstage ramstage
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ARCHDIR-i386 := x86
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ARCHDIR-arm := arm
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ARCHDIR-arm64 := arm64
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ARCHDIR-x86_32 := x86
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CFLAGS_arm := -mno-unaligned-access -ffunction-sections -fdata-sections
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CFLAGS_arm64 := -ffunction-sections -fdata-sections
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toolchain_to_dir = \
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$(foreach arch,$(ARCH_SUPPORTED),\
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$(eval INCLUDES_$(ARCH_TO_TOOLCHAIN_$(arch)) = \
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-Isrc/arch/$(ARCHDIR-$(ARCH_TO_TOOLCHAIN_$(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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set_stage_toolchain= \
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$(foreach arch,$(ARCH_SUPPORTED),$(eval ARCH-$(1)-$(CONFIG_ARCH_$(1)_$(arch)) := $(ARCH_TO_TOOLCHAIN_$(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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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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INCLUDES_$(1) = $$(INCLUDES) -Isrc/arch/$(ARCHDIR-$(2))/include
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CFLAGS_$(1) = $$(CFLAGS_common) $$(INCLUDES_$(1)) $(CFLAGS_$(2))
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LIBGCC_FILE_NAME_$(1) = $(shell [ -r `$(CC_$(2)) -print-libgcc-file-name` ] && \
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$(CC_$(2)) -print-libgcc-file-name)
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endef
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# initialize standard toolchain (CC,AS and others) for given stage
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# @1 : stage for which the toolchain is to be initialized
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init_standard_toolchain = \
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$(eval stage_caps := $(shell printf "%s" $(1) | tr '[:lower:]' '[:upper:]' )) \
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$(eval $(call set_stage_toolchain,$(stage_caps))) \
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$(eval $(call create_class_compiler,$(1),$(ARCH-$(stage_caps)-y))) \
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$(eval $(call set_stage_libgcc,$(1)))
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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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# This mapping is created to have consistency with xcompile naming
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$(eval $(call create_class_compiler,x86_32,i386))
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$(eval $(call create_class_compiler,arm64,aarch64))
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$(eval $(call toolchain_to_dir))
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$(eval $(call init_stages))
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