c2fe1e0a09
The non-relocatable SMM code was changed to link against libgcc a while back so that printk could use built-in division instead of a hand crafted div() function. However, the relocatable SMM code was not adapted by mistake. This patch links the relocatable SMM against libgcc, too, so we can enable it for Haswell. Change-Id: Ia64a78e2e62348d115ae4ded52d1a02c74c5cea4 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2727 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
99 lines
3.7 KiB
Makefile
99 lines
3.7 KiB
Makefile
##
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## This file is part of the coreboot project.
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##
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## Copyright (C) 2008-2010 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; 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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ifeq ($(CONFIG_SMM_MODULES),y)
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smmstub-y += smm_stub.S
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smmstub-y += smm_module_header.c
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smm-y += smiutil.c
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smm-y += smm_module_header.c
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smm-y += smm_module_handler.c
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ramstage-y += smm_module_loader.c
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ramstage-srcs += $(obj)/cpu/x86/smm/smm
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ramstage-srcs += $(obj)/cpu/x86/smm/smmstub
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# SMM Stub Module. The stub is used as a trampoline for relocation and normal
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# SMM handling.
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$(obj)/cpu/x86/smm/smmstub.o: $$(smmstub-objs)
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$(CC) $(LDFLAGS) -nostdlib -r -o $@ $^
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# Link the SMM stub module with a 0-byte heap.
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$(eval $(call rmodule_link,$(obj)/cpu/x86/smm/smmstub.elf, $(obj)/cpu/x86/smm/smmstub.o, 0))
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$(obj)/cpu/x86/smm/smmstub: $(obj)/cpu/x86/smm/smmstub.elf
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$(OBJCOPY) -O binary $< $@
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$(obj)/cpu/x86/smm/smmstub.ramstage.o: $(obj)/cpu/x86/smm/smmstub
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@printf " OBJCOPY $(subst $(obj)/,,$(@))\n"
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cd $(dir $@); $(OBJCOPY) -I binary $(notdir $<) -O elf32-i386 -B i386 $(notdir $@)
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# C-based SMM handler.
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$(obj)/cpu/x86/smm/smm.o: $$(smm-objs) $(LIBGCC_FILE_NAME)
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$(CC) $(LDFLAGS) -nostdlib -r -o $@ -Wl,--wrap,__divdi3 -Wl,--wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,--start-group $(smm-objs) $(LIBGCC_FILE_NAME) -Wl,--end-group
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$(eval $(call rmodule_link,$(obj)/cpu/x86/smm/smm.elf, $(obj)/cpu/x86/smm/smm.o, $(CONFIG_SMM_MODULE_HEAP_SIZE)))
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$(obj)/cpu/x86/smm/smm: $(obj)/cpu/x86/smm/smm.elf
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$(OBJCOPY) -O binary $< $@
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$(obj)/cpu/x86/smm/smm.ramstage.o: $(obj)/cpu/x86/smm/smm
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@printf " OBJCOPY $(subst $(obj)/,,$(@))\n"
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cd $(dir $@); $(OBJCOPY) -I binary $(notdir $<) -O elf32-i386 -B i386 $(notdir $@)
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else # CONFIG_SMM_MODULES
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ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smmrelocate.S
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ifeq ($(CONFIG_HAVE_SMI_HANDLER),y)
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ramstage-srcs += $(obj)/cpu/x86/smm/smm_wrap
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endif
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# Use TSEG specific entry point and linker script
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ifeq ($(CONFIG_SMM_TSEG),y)
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smm-y += smmhandler_tseg.S
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SMM_LDFLAGS := $(LDFLAGS) -pie
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SMM_LDSCRIPT := smm_tseg.ld
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else
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smm-y += smmhandler.S
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SMM_LDFLAGS := $(LDFLAGFS)
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SMM_LDSCRIPT := smm.ld
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endif
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smm-y += smihandler.c
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smm-y += smiutil.c
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$(obj)/cpu/x86/smm/smm.o: $$(smm-objs) $(LIBGCC_FILE_NAME)
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$(CC) $(LDFLAGS) -nostdlib -r -o $@ -Wl,--wrap,__divdi3 -Wl,--wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,--start-group $(smm-objs) $(LIBGCC_FILE_NAME) -Wl,--end-group
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$(obj)/cpu/x86/smm/smm_wrap: $(obj)/cpu/x86/smm/smm.o $(src)/cpu/x86/smm/$(SMM_LDSCRIPT) $(obj)/ldoptions
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$(CC) $(SMM_LDFLAGS) -nostdlib -nostartfiles -static -o $(obj)/cpu/x86/smm/smm.elf -T $(src)/cpu/x86/smm/$(SMM_LDSCRIPT) $(obj)/cpu/x86/smm/smm.o
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$(NM) -n $(obj)/cpu/x86/smm/smm.elf | sort > $(obj)/cpu/x86/smm/smm.map
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$(OBJCOPY) -O binary $(obj)/cpu/x86/smm/smm.elf $(obj)/cpu/x86/smm/smm
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# change to the target path because objcopy will use the path name in its
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# ELF symbol names.
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$(obj)/cpu/x86/smm/smm_wrap.ramstage.o: $(obj)/cpu/x86/smm/smm_wrap
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@printf " OBJCOPY $(subst $(obj)/,,$(@))\n"
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cd $(obj)/cpu/x86/smm; $(OBJCOPY) -I binary smm -O elf32-i386 -B i386 smm_wrap.ramstage.o
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endif # CONFIG_SMM_MODULES
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