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https://github.com/fail0verflow/switch-coreboot.git
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c35a4511f7
* lock other CPUs in SMI handler while one CPU is handling an SMI. Without this various racing scenarios could happen. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Myles Watson <mylesgw@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4840 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
48 lines
1.7 KiB
Text
48 lines
1.7 KiB
Text
##
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## This file is part of the coreboot project.
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##
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## Copyright (C) 2008 coresystems GmbH
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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; either version 2 of the License, or
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## (at your option) any later version.
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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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uses CONFIG_HAVE_SMI_HANDLER
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if CONFIG_HAVE_SMI_HANDLER
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object smmrelocate.S
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smmobject smmhandler.S
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smmobject smihandler.o
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smmobject smiutil.o
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makerule smm.o
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depends "$(SMM-OBJECTS) src/console/printk.o src/console/vtxprintf.o $(LIBGCC_FILE_NAME)"
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action "$(CC) $(DISTRO_LFLAGS) -nostdlib -r -o $@ $^"
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end
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makerule smm
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depends "smm.o $(TOP)/src/cpu/x86/smm/smm.ld ldoptions"
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action "$(CC) $(DISTRO_LFLAGS) -nostdlib -nostartfiles -static -o smm.elf -T $(TOP)/src/cpu/x86/smm/smm.ld smm.o"
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action "$(CONFIG_CROSS_COMPILE)nm -n smm.elf | sort > smm.map"
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action "$(CONFIG_OBJCOPY) -O binary smm.elf smm"
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end
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makerule smm_bin.c
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depends "smm"
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action "(echo 'unsigned char smm[] = {'; od -vtx1 smm | sed -e 's,^[0-9]* *,,' -e 's:[0-9a-f][0-9a-f] :0x&,:g' -e 's:[0-9a-f][0-9a-f]$$:0x&,:'; echo '}; unsigned int smm_len = '; wc -c smm |awk '{print $$1;}' ; echo ';') > smm_bin.c"
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end
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object ./smm_bin.o
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end
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