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- loop unrolling has a positive effect on execution speed. - This change also drops the -march=i386 and thus allows the compiler to use SSE instructions. - A few duplicate options are dropped from CFLAGS. - drop -fno-toplevel-reordering. This sneaked in from u-boot where it might be needed by some drivers. With this change I just successfully booted my Stumpy in 833ms BUG=chrome-os-partner:4675 TEST=boot tested on stumpy Change-Id: I805cbcaec48b4f8d1d8fa7d7bed9241178f59a8e Reviewed-on: https://gerrit.chromium.org/gerrit/11061 Tested-by: Stefan Reinauer <reinauer@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org>
106 lines
2.5 KiB
Makefile
106 lines
2.5 KiB
Makefile
# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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export FIRMWARE_ARCH
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export MOCK_TPM
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export CC ?= gcc
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export CXX ?= g++
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export CFLAGS = -Wall -Werror
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ifeq (${DEBUG},)
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CFLAGS += -O3
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else
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CFLAGS += -O0 -g
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endif
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#
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# TODO(crosbug.com/16808) We hard-code u-boot's compiler flags here just
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# temporarily. As we are still investigating which flags are necessary for
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# maintaining a compatible ABI, etc. between u-boot and vboot_reference.
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#
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# Override CC and CFLAGS for firmware builds; if you have any -D flags, please
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# add them after this point (e.g., -DVBOOT_DEBUG).
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#
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ifeq ($(FIRMWARE_ARCH), arm)
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CC = armv7a-cros-linux-gnueabi-gcc
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CFLAGS = -g -Os -fno-common -ffixed-r8 -msoft-float -fno-builtin \
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-ffreestanding -nostdinc \
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-pipe -marm -mabi=aapcs-linux -mno-thumb-interwork -march=armv5 \
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-Werror -Wall -Wstrict-prototypes -fno-stack-protector
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endif
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ifeq ($(FIRMWARE_ARCH), i386)
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CC = i686-pc-linux-gnu-gcc
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CFLAGS = -g -Os -ffunction-sections -fvisibility=hidden -fno-builtin \
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-ffreestanding -nostdinc -pipe -Wstrict-prototypes -mregparm=3 \
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-fomit-frame-pointer -fno-stack-protector \
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-mpreferred-stack-boundary=2 -fno-dwarf2-cfi-asm -Werror -Wall
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endif
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# Fix compiling directly on host (outside of emake)
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ifeq ($(ARCH),)
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export ARCH=amd64
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endif
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ifeq ($(FIRMWARE_ARCH),)
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CFLAGS += -DCHROMEOS_ENVIRONMENT
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endif
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ifneq (${DEBUG},)
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CFLAGS += -DVBOOT_DEBUG
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endif
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ifeq (${DISABLE_NDEBUG},)
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CFLAGS += -DNDEBUG
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endif
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export TOP = $(shell pwd)
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export FWDIR=$(TOP)/firmware
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export HOSTDIR=$(TOP)/host
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ifeq ($(FIRMWARE_ARCH),)
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export INCLUDES = -I$(FWDIR)/include -I$(FWDIR)/stub/include
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else
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export INCLUDES = -I$(FWDIR)/include -I$(FWDIR)/arch/$(FIRMWARE_ARCH)/include
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endif
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export BUILD = ${TOP}/build
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export FWLIB = ${BUILD}/vboot_fw.a
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export HOSTLIB = ${BUILD}/vboot_host.a
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ifeq ($(FIRMWARE_ARCH),)
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SUBDIRS = firmware host utility cgpt tests tests/tpm_lite
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else
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SUBDIRS = firmware
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endif
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all:
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set -e; \
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for d in $(shell find ${SUBDIRS} -name '*.c' -exec dirname {} \; |\
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sort -u); do \
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newdir=${BUILD}/$$d; \
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if [ ! -d $$newdir ]; then \
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mkdir -p $$newdir; \
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fi; \
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done; \
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[ -z "$(FIRMWARE_ARCH)" ] && make -C utility update_tlcl_structures; \
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for i in $(SUBDIRS); do \
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make -C $$i; \
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done
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clean:
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/bin/rm -rf ${BUILD}
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install:
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$(MAKE) -C utility install
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$(MAKE) -C cgpt install
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runtests:
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$(MAKE) -C tests runtests
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rbtest:
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$(MAKE) -C tests rbtest
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runbmptests:
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$(MAKE) -C tests runbmptests
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