370c116ca5
This method has a pause instruction to help the CPU relax a little bit. Measuring grunt it saves about 80mW. BUG=b:109749762 TEST=Made sure that grunt boots. Change-Id: I045a941ed42fcc4f2dbdd65b5cbb42d84813f50c Signed-off-by: Raul E Rangel <rrangel@chromium.org> Reviewed-on: https://review.coreboot.org/28244 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
51 lines
2.0 KiB
Makefile
51 lines
2.0 KiB
Makefile
##
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## This file is part of the libpayload project.
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##
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## Copyright (C) 2008 Advanced Micro Devices, Inc.
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##
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## Redistribution and use in source and binary forms, with or without
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## modification, are permitted provided that the following conditions
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## are met:
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## 1. Redistributions of source code must retain the above copyright
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## notice, this list of conditions and the following disclaimer.
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## 2. Redistributions in binary form must reproduce the above copyright
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## notice, this list of conditions and the following disclaimer in the
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## documentation and/or other materials provided with the distribution.
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## 3. The name of the author may not be used to endorse or promote products
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## derived from this software without specific prior written permission.
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##
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## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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## SUCH DAMAGE.
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##
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CFLAGS += -mpreferred-stack-boundary=2
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head.o-y += head.S
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libc-y += main.c sysinfo.c
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libc-y += timer.c coreboot.c util.S
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libc-y += exec.S virtual.c
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libc-y += selfboot.c
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libc-y += exception_asm.S exception.c
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libc-y += delay.c
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# Will fall back to default_memXXX() in libc/memory.c if GPL not allowed.
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libc-$(CONFIG_LP_GPL) += string.c
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libgdb-y += gdb.c
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libcbfs-$(CONFIG_LP_CBFS) += rom_media.c
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# Multiboot support is configurable
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libc-$(CONFIG_LP_MULTIBOOT) += multiboot.c
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libc-$(CONFIG_LP_ENABLE_APIC) += apic.c
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