d37ab454d4
In order to provide some insight on what code is executed during coreboot's run time and how well our test scenarios work, this adds code coverage support to coreboot's ram stage. This should be easily adaptable for payloads, and maybe even romstage. See http://gcc.gnu.org/onlinedocs/gcc/Gcov.html for more information. To instrument coreboot, select CONFIG_COVERAGE ("Code coverage support") in Kconfig, and recompile coreboot. coreboot will then store its code coverage information into CBMEM, if possible. Then, run "cbmem -CV" as root on the target system running the instrumented coreboot binary. This will create a whole bunch of .gcda files that contain coverage information. Tar them up, copy them to your build system machine, and untar them. Then you can use your favorite coverage utility (gcov, lcov, ...) to visualize code coverage. For a sneak peak of what will expect you, please take a look at http://www.coreboot.org/~stepan/coreboot-coverage/ Change-Id: Ib287d8309878a1f5c4be770c38b1bc0bb3aa6ec7 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2052 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Martin Roth <martin@se-eng.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
359 lines
15 KiB
Makefile
359 lines
15 KiB
Makefile
##
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## This file is part of the coreboot project.
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##
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## Copyright (C) 2011 secunet Security Networks AG
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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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# misleadingly named, this is the coreboot version
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export KERNELVERSION := $(shell if [ -d "$(top)/.git" -a -f "`which git`" ]; then git describe --dirty 2>/dev/null || git describe; else echo unknown; fi)
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#######################################################################
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# Basic component discovery
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MAINBOARDDIR=$(call strip_quotes,$(CONFIG_MAINBOARD_DIR))
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export MAINBOARDDIR
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## Final build results, which CBFSTOOL uses to create the final
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## rom image file, are placed under $(objcbfs).
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## These typically have suffixes .debug .elf .bin and .map
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export objcbfs := $(obj)/cbfs/$(call strip_quotes,$(CONFIG_CBFS_PREFIX))
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## Based on the active configuration, Makefile conditionally collects
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## the required assembly includes and saves them in a file.
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## Such files that do not have a clear one-to-one relation to a source
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## file under src/ are placed and built under $(objgenerated)
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export objgenerated := $(obj)/generated
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#######################################################################
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# root rule to resolve if in build mode (ie. configuration exists)
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real-target: $(obj)/config.h coreboot
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coreboot: build-dirs $(obj)/coreboot.rom
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#######################################################################
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# our phony targets
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PHONY+= clean-abuild coreboot lint lint-stable build-dirs
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#######################################################################
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# root source directories of coreboot
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subdirs-y := src/lib src/console src/device src/ec src/southbridge
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subdirs-y += src/northbridge src/superio src/drivers src/cpu src/vendorcode
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subdirs-y += util/cbfstool util/sconfig util/nvramtool
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subdirs-y += src/arch/$(ARCHDIR-y)
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subdirs-y += src/mainboard/$(MAINBOARDDIR)
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subdirs-y += site-local
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#######################################################################
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# Add source classes and their build options
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classes-y := ramstage romstage smm cpu_microcode
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#######################################################################
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# Helper functions for ramstage postprocess
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spc :=
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spc +=
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$(spc) :=
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$(spc) +=
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# files-in-dir-recursive,dir,files
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files-in-dir-recursive=$(filter $(1)%,$(2))
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# parent-dir,dir/
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parent-dir=$(dir $(subst $( ),/,$(strip $(subst /, ,$(1)))))
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# filters out exactly the directory specified
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# filter-out-dir,dir_to_keep,dirs
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filter-out-dir=$(filter-out $(1),$(2))
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# filters out dir_to_keep and all its parents
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# filter-out-dirs,dir_to_keep,dirs
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filter-out-dirs=$(if $(filter-out ./,$(1)),$(call filter-out-dirs,$(call parent-dir,$(1)),$(call filter-out-dir,$(1),$(2))),$(call filter-out-dir,$(1),$(2)))
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# dir-wildcards,dirs
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dir-wildcards=$(addsuffix %,$(1))
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# files-in-dir,dir,files
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files-in-dir=$(filter-out $(call dir-wildcards,$(call filter-out-dirs,$(1),$(dir $(2)))),$(call files-in-dir-recursive,$(1),$(2)))
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#######################################################################
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# reduce command line length by linking the objects of each
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# directory into an intermediate file
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ramstage-postprocess=$(foreach d,$(sort $(dir $(1))), \
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$(eval $(d)ramstage.o: $(call files-in-dir,$(d),$(1)); $$(LD) -o $$@ -r $$^ ) \
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$(eval ramstage-objs:=$(d)ramstage.o $(filter-out $(call files-in-dir,$(d),$(1)),$(ramstage-objs))))
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romstage-c-ccopts:=-D__PRE_RAM__
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romstage-S-ccopts:=-D__PRE_RAM__
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ifeq ($(CONFIG_TRACE),y)
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ramstage-c-ccopts:= -finstrument-functions
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endif
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ifeq ($(CONFIG_COVERAGE),y)
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ramstage-c-ccopts+=-fprofile-arcs -ftest-coverage
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endif
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ifeq ($(CONFIG_USE_BLOBS),y)
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forgetthis:=$(shell git submodule update --init --checkout 3rdparty)
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else
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ifeq ($(CONFIG_REQUIRES_BLOB),y)
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$(error Your current configuration requires binary-only components, but you did not choose to use them)
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endif
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endif
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smm-c-ccopts:=-D__SMM__
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smm-S-ccopts:=-D__SMM__
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# SMM TSEG base is dynamic
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ifeq ($(CONFIG_SMM_TSEG),y)
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smm-c-ccopts += -fpic
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endif
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ramstage-c-deps:=$$(OPTION_TABLE_H)
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romstage-c-deps:=$$(OPTION_TABLE_H)
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#######################################################################
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# Add handler to compile ACPI's ASL
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define ramstage-objs_asl_template
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$(obj)/$(1).ramstage.o: src/$(1).asl $(obj)/config.h
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@printf " IASL $$(subst $(top)/,,$$(@))\n"
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$(CC) -x assembler-with-cpp -E -MMD -MT $$(@) -D__ACPI__ -P -include $(src)/include/kconfig.h -I$(obj) -I$(src) -I$(src)/include -I$(src)/arch/$(ARCHDIR-y)/include -I$(src)/mainboard/$(MAINBOARDDIR) $$< -o $$(basename $$@).asl
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cd $$(dir $$@); $(IASL) -p $$(notdir $$@) -tc $$(notdir $$(basename $$@)).asl
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mv $$(basename $$@).hex $$(basename $$@).c
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$(CC) $$(CFLAGS) $$(if $$(subst dsdt,,$$(basename $$(notdir $(1)))), -DAmlCode=AmlCode_$$(basename $$(notdir $(1)))) -c -o $$@ $$(basename $$@).c
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# keep %.o: %.c rule from catching the temporary .c file after a make clean
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mv $$(basename $$@).c $$(basename $$@).hex
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endef
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#######################################################################
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# Parse plaintext cmos defaults into binary format
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# arg1: source file
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# arg2: binary file name
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cbfs-files-processor-nvramtool= \
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$(eval $(2): $(1) $(src)/mainboard/$(MAINBOARDDIR)/cmos.layout | $(objutil)/nvramtool/nvramtool ; \
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printf " CREATE $(2) (from $(1))\n"; $(objutil)/nvramtool/nvramtool -y $(src)/mainboard/$(MAINBOARDDIR)/cmos.layout -D $(2).tmp -p $(1) && mv $(2).tmp $(2))
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#######################################################################
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# Link VSA binary to ELF-ish stage
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# arg1: source file
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# arg2: binary file name
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cbfs-files-processor-vsa= \
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$(eval $(2): $(1) ; \
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printf " CREATE $(2) (from $(1))\n"; $(OBJCOPY) --set-start 0x20 --adjust-vma 0x60000 -I binary -O elf32-i386 -B i386 $(1) $(2).tmp && $(LD) -m elf_i386 -e 0x60020 --section-start .data=0x60000 $(2).tmp -o $(2))
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#######################################################################
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# Add handler for arbitrary files in CBFS
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$(call add-special-class,cbfs-files)
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cbfs-files-handler= \
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$(eval tmp-cbfs-method:=$(word 2, $(subst :, ,$($(2)-file)))) \
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$(eval $(2)-file:=$(call strip_quotes,$(word 1, $(subst :, ,$($(2)-file))))) \
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$(if $(wildcard $(1)$($(2)-file)), \
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$(eval tmp-cbfs-file:= $(wildcard $(1)$($(2)-file))), \
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$(eval tmp-cbfs-file:= $($(2)-file))) \
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$(if $(tmp-cbfs-method), \
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$(eval tmp-old-cbfs-file:=$(tmp-cbfs-file)) \
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$(eval tmp-cbfs-file:=$(shell mkdir -p $(obj)/mainboard/$(MAINBOARDDIR); mktemp $(obj)/mainboard/$(MAINBOARDDIR)/cbfs-file.XXXXXX).out) \
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$(call cbfs-files-processor-$(tmp-cbfs-method),$(tmp-old-cbfs-file),$(tmp-cbfs-file))) \
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$(eval cbfs-files += $(tmp-cbfs-file)|$(2)|$($(2)-type)|$($(2)-compression)|$($(2)-position)) \
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$(eval $(2)-name:=) \
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$(eval $(2)-type:=) \
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$(eval $(2)-compression:=) \
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$(eval $(2)-position:=)
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#######################################################################
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# a variety of flags for our build
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CBFS_COMPRESS_FLAG:=none
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ifeq ($(CONFIG_COMPRESS_RAMSTAGE),y)
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CBFS_COMPRESS_FLAG:=LZMA
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endif
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CBFS_PAYLOAD_COMPRESS_FLAG:=none
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ifeq ($(CONFIG_COMPRESSED_PAYLOAD_LZMA),y)
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CBFS_PAYLOAD_COMPRESS_FLAG:=LZMA
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endif
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ifneq ($(CONFIG_LOCALVERSION),"")
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COREBOOT_EXTRA_VERSION := -$(call strip_quotes,$(CONFIG_LOCALVERSION))
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endif
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INCLUDES := -Isrc -Isrc/include -I$(obj) -Isrc/arch/$(ARCHDIR-y)/include
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INCLUDES += -Isrc/device/oprom/include
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# abspath is a workaround for romcc
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INCLUDES += -include $(src)/include/kconfig.h
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CFLAGS = $(INCLUDES) -Os -pipe -g -nostdinc
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CFLAGS += -nostdlib -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
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CFLAGS += -Wwrite-strings -Wredundant-decls -Wno-trigraphs
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CFLAGS += -Wstrict-aliasing -Wshadow
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ifeq ($(CONFIG_WARNINGS_ARE_ERRORS),y)
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CFLAGS += -Werror
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endif
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CFLAGS += -fno-common -ffreestanding -fno-builtin -fomit-frame-pointer
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additional-dirs := $(objutil)/cbfstool $(objutil)/romcc $(objutil)/ifdtool $(objutil)/options
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#######################################################################
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# generate build support files
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$(obj)/build.h: .xcompile
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@printf " GEN build.h\n"
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rm -f $(obj)/build.h
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printf "/* build system definitions (autogenerated) */\n" > $(obj)/build.ht
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printf "#ifndef __BUILD_H\n" >> $(obj)/build.ht
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printf "#define __BUILD_H\n\n" >> $(obj)/build.ht
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printf "#define COREBOOT_VERSION \"$(KERNELVERSION)\"\n" >> $(obj)/build.ht
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printf "#define COREBOOT_EXTRA_VERSION \"$(COREBOOT_EXTRA_VERSION)\"\n" >> $(obj)/build.ht
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printf "#define COREBOOT_BUILD \"`LANG= date`\"\n" >> $(obj)/build.ht
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printf "#define COREBOOT_BUILD_YEAR_BCD 0x`LANG= date +"%y"`\n" >> $(obj)/build.ht
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printf "#define COREBOOT_BUILD_MONTH_BCD 0x`LANG= date +"%m"`\n" >> $(obj)/build.ht
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printf "#define COREBOOT_BUILD_DAY_BCD 0x`LANG= date +"%d"`\n" >> $(obj)/build.ht
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printf "#define COREBOOT_BUILD_WEEKDAY_BCD 0x`LANG= date +"%w"`\n" >> $(obj)/build.ht
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printf "#define COREBOOT_DMI_DATE \"`LANG= date +"%m/%d/%Y"`\"\n" >> $(obj)/build.ht
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printf "\n" >> $(obj)/build.ht
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printf "#define COREBOOT_COMPILER \"$(shell LANG= $(CC) --version | head -n1)\"\n" >> $(obj)/build.ht
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printf "#define COREBOOT_ASSEMBLER \"$(shell LANG= $(AS) --version | head -n1)\"\n" >> $(obj)/build.ht
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printf "#define COREBOOT_LINKER \"$(shell LANG= $(LD) --version | head -n1)\"\n" >> $(obj)/build.ht
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printf "#define COREBOOT_COMPILE_TIME \"`LANG= date +%T`\"\n" >> $(obj)/build.ht
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printf "#define COREBOOT_COMPILE_BY \"$(subst \,@,$(shell PATH=$$PATH:/usr/ucb whoami))\"\n" >> $(obj)/build.ht
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printf "#define COREBOOT_COMPILE_HOST \"$(shell hostname -s 2>/dev/null || hostname 2>/dev/null)\"\n" >> $(obj)/build.ht
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printf "#define COREBOOT_COMPILE_DOMAIN \"$(shell test `uname -s` = "Linux" && dnsdomainname || domainname 2>/dev/null)\"\n" >> $(obj)/build.ht
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printf "#endif\n" >> $(obj)/build.ht
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mv $(obj)/build.ht $(obj)/build.h
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$(obj)/ldoptions: $(obj)/config.h
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awk '/^#define ([^"])* ([^"])*$$/ {gsub("\\r","",$$3); print $$2 " = " $$3 ";";}' $< > $@
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build-dirs:
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mkdir -p $(objcbfs) $(objgenerated)
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#######################################################################
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# Build the tools
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CBFSTOOL:=$(obj)/cbfstool
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$(CBFSTOOL): $(objutil)/cbfstool/cbfstool
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cp $< $@
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_WINCHECK=$(shell uname -o 2> /dev/null)
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STACK=
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ifeq ($(_WINCHECK),Msys)
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STACK=-Wl,--stack,16384000
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endif
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ifeq ($(_WINCHECK),Cygwin)
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STACK=-Wl,--stack,16384000
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endif
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ROMCC:= $(objutil)/romcc/romcc
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$(ROMCC): $(top)/util/romcc/romcc.c
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@printf " HOSTCC $(subst $(obj)/,,$(@)) (this may take a while)\n"
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@# Note: Adding -O2 here might cause problems. For details see:
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@# http://www.coreboot.org/pipermail/coreboot/2010-February/055825.html
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$(HOSTCC) -g $(STACK) -Wall -o $@ $<
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IFDTOOL:=$(objutil)/ifdtool/ifdtool
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$(IFDTOOL): $(top)/util/ifdtool/ifdtool.c
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@printf " HOSTCC $(subst $(obj)/,,$(@))\n"
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$(HOSTCC) $(HOSTCFLAGS) -o $@ $<
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#######################################################################
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# needed objects that every mainboard uses
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# Creation of these is architecture and mainboard independent
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$(obj)/mainboard/$(MAINBOARDDIR)/static.c: $(src)/mainboard/$(MAINBOARDDIR)/devicetree.cb $(objutil)/sconfig/sconfig
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@printf " SCONFIG $(subst $(src)/,,$(<))\n"
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mkdir -p $(obj)/mainboard/$(MAINBOARDDIR)
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$(objutil)/sconfig/sconfig $(MAINBOARDDIR) $(obj)/mainboard/$(MAINBOARDDIR)
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ramstage-y+=$(obj)/mainboard/$(MAINBOARDDIR)/static.c
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romstage-y+=$(obj)/mainboard/$(MAINBOARDDIR)/static.c
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$(objutil)/%.o: $(objutil)/%.c
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@printf " HOSTCC $(subst $(objutil)/,,$(@))\n"
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$(HOSTCC) -MMD -I$(subst $(objutil)/,util/,$(dir $<)) -I$(dir $<) $(HOSTCFLAGS) -c -o $@ $<
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$(obj)/%.ramstage.o $(abspath $(obj))/%.ramstage.o: $(obj)/%.c $(obj)/config.h $(OPTION_TABLE_H)
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@printf " CC $(subst $(obj)/,,$(@))\n"
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$(CC) -MMD $(CFLAGS) -c -o $@ $<
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$(obj)/%.romstage.o $(abspath $(obj))/%.romstage.o: $(obj)/%.c $(obj)/config.h $(OPTION_TABLE_H)
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@printf " CC $(subst $(obj)/,,$(@))\n"
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$(CC) -MMD -D__PRE_RAM__ $(CFLAGS) -c -o $@ $<
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#######################################################################
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# Clean up rules
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clean-abuild:
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rm -rf coreboot-builds
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clean-for-update-target:
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rm -f $(obj)/coreboot_ram* $(obj)/coreboot.romstage $(obj)/coreboot.pre* $(obj)/coreboot.bootblock $(obj)/coreboot.a
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rm -rf $(obj)/bootblock* $(obj)/romstage* $(obj)/location.*
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rm -f $(obj)/option_table.* $(obj)/crt0.S $(obj)/ldscript
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rm -f $(obj)/mainboard/$(MAINBOARDDIR)/static.c $(obj)/mainboard/$(MAINBOARDDIR)/config.py $(obj)/mainboard/$(MAINBOARDDIR)/static.dot
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rm -f $(obj)/mainboard/$(MAINBOARDDIR)/crt0.s $(obj)/mainboard/$(MAINBOARDDIR)/crt0.disasm
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rm -f $(obj)/mainboard/$(MAINBOARDDIR)/romstage.inc
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rm -f $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.* $(obj)/mainboard/$(MAINBOARDDIR)/dsdt.*
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rm -f $(obj)/cpu/x86/smm/smm_bin.c $(obj)/cpu/x86/smm/smm.* $(obj)/cpu/x86/smm/smm
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$(MAKE) -C payloads/external/SeaBIOS -f Makefile.inc clean OUT=$(abspath $(obj)) HOSTCC="$(HOSTCC)" CC="$(CC)" LD="$(LD)"
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clean-target:
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rm -f $(obj)/coreboot*
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#######################################################################
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# Development utilities
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printcrt0s:
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@echo crt0s=$(crt0s)
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@echo ldscripts=$(ldscripts)
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update:
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dongle.py -c /dev/term/1 $(obj)/coreboot.rom EOF
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lint lint-stable:
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FAILED=0; LINTLOG=`mktemp .tmpconfig.lintXXXXX`; \
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for script in util/lint/$@-*; do \
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echo; echo `basename $$script`; \
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grep "^# DESCR:" $$script | sed "s,.*DESCR: *,," ; \
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echo ========; \
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$$script > $$LINTLOG; \
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if [ `cat $$LINTLOG | wc -l` -eq 0 ]; then \
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printf "success\n\n"; \
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else \
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echo test failed: ; \
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cat $$LINTLOG; \
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rm -f $$LINTLOG; \
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FAILED=$$(( $$FAILED + 1 )); \
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fi; \
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echo ========; \
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done; \
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test $$FAILED -eq 0 || { echo "ERROR: $$FAILED test(s) failed." && exit 1; }; \
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rm -f $$LINTLOG
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gitconfig:
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mkdir -p .git/hooks
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for hook in commit-msg pre-commit ; do \
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if [ util/gitconfig/$$hook -nt .git/hooks/$$hook -o \
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! -x .git/hooks/$$hook ]; then \
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cp util/gitconfig/$$hook .git/hooks/$$hook; \
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chmod +x .git/hooks/$$hook; \
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fi; \
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done
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git config remote.origin.push HEAD:refs/for/master
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(git config --global user.name >/dev/null && git config --global user.email >/dev/null) || (printf 'Please configure your name and email in git:\n\n git config --global user.name "Your Name Comes Here"\n git config --global user.email your.email@example.com\n'; exit 1)
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crossgcc: clean-for-update
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$(MAKE) -C util/crossgcc build-without-gdb
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crosstools: clean-for-update
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$(MAKE) -C util/crossgcc build
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crossgcc-clean: clean-for-update
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$(MAKE) -C util/crossgcc clean
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tools: $(objutil)/kconfig/conf $(objutil)/cbfstool/cbfstool $(objutil)/nvramtool/nvramtool $(objutil)/romcc/romcc $(objutil)/sconfig/sconfig
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