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Kevin O'Connor14458432009-05-23 18:21:18 -04001# SeaBIOS build system
Kevin O'Connorf076a3e2008-02-25 22:25:15 -05002#
Kevin O'Connor14458432009-05-23 18:21:18 -04003# Copyright (C) 2008,2009 Kevin O'Connor <kevin@koconnor.net>
Kevin O'Connorf076a3e2008-02-25 22:25:15 -05004#
Kevin O'Connorb1b7c2a2009-01-15 20:52:58 -05005# This file may be distributed under the terms of the GNU LGPLv3 license.
Kevin O'Connorf076a3e2008-02-25 22:25:15 -05006
Kevin O'Connorc95d2ce2009-07-29 20:41:39 -04007# Program version
Kevin O'Connorba285412010-03-28 13:53:40 -04008VERSION=pre-0.6.1-$(shell date +"%Y%m%d_%H%M%S")-$(shell hostname)
Kevin O'Connorc95d2ce2009-07-29 20:41:39 -04009
Kevin O'Connorf076a3e2008-02-25 22:25:15 -050010# Output directory
11OUT=out/
12
13# Source files
Kevin O'Connorad901592009-12-13 11:25:25 -050014SRCBOTH=misc.c pmm.c stacks.c output.c util.c block.c floppy.c ata.c mouse.c \
Kevin O'Connor3a337b22009-11-03 19:50:52 -050015 kbd.c pci.c serial.c clock.c pic.c cdrom.c ps2port.c smp.c resume.c \
Kevin O'Connor76977b22010-02-17 01:01:32 -050016 pnpbios.c pirtable.c vgahooks.c ramdisk.c pcibios.c blockcmd.c \
Gleb Natapov89acfa32010-05-10 11:36:37 +030017 usb.c usb-uhci.c usb-ohci.c usb-ehci.c usb-hid.c usb-msc.c \
18 virtio-ring.c virtio-pci.c virtio-blk.c
Kevin O'Connor871e0a02009-12-30 12:14:53 -050019SRC16=$(SRCBOTH) system.c disk.c apm.c font.c
Kevin O'Connor52a300f2009-12-26 23:32:57 -050020SRC32FLAT=$(SRCBOTH) post.c shadow.c memmap.c coreboot.c boot.c \
Kevin O'Connor592323f2009-04-26 23:17:49 -040021 acpi.c smm.c mptable.c smbios.c pciinit.c optionroms.c mtrr.c \
Kevin O'Connor0d6b8d52010-07-10 13:12:37 -040022 lzmadecode.c bootsplash.c jpeg.c usb-hub.c paravirt.c dev-i440fx.c
Kevin O'Connor9c447c32010-05-23 10:24:22 -040023SRC32SEG=util.c output.c pci.c pcibios.c apm.c stacks.c
Kevin O'Connorf076a3e2008-02-25 22:25:15 -050024
Kevin O'Connor786502d2008-02-27 10:41:41 -050025cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc \
26 /dev/null 2>&1`"; then echo "$(2)"; else echo "$(3)"; fi ;)
27
Kevin O'Connorbdce35f2008-02-26 21:33:14 -050028# Default compiler flags
Kevin O'Connorf9b25d32010-01-03 18:09:08 -050029COMMONCFLAGS = -Os -MD -Wall -Wno-strict-aliasing -Wold-style-definition \
30 $(call cc-option,$(CC),-Wtype-limits,) \
Kevin O'Connor1ca05b02010-01-03 17:43:37 -050031 -m32 -march=i386 -mregparm=3 -mpreferred-stack-boundary=2 \
32 -mrtd -minline-all-stringops \
33 -freg-struct-return -ffreestanding -fomit-frame-pointer \
34 -fno-delete-null-pointer-checks \
35 -ffunction-sections -fdata-sections -fno-common
Kevin O'Connor786502d2008-02-27 10:41:41 -050036COMMONCFLAGS += $(call cc-option,$(CC),-nopie,)
37COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector,)
38COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,)
39
Kevin O'Connor871e0a02009-12-30 12:14:53 -050040CFLAGS32FLAT = $(COMMONCFLAGS) -g -DMODE16=0 -DMODESEGMENT=0
41CFLAGSSEG = $(COMMONCFLAGS) -DMODESEGMENT=1 -fno-defer-pop \
42 $(call cc-option,$(CC),-fno-jump-tables,-DMANUAL_NO_JUMP_TABLE) \
43 $(call cc-option,$(CC),-fno-tree-switch-conversion,)
44CFLAGS32SEG = $(CFLAGSSEG) -DMODE16=0 -g
45CFLAGS16INC = $(CFLAGSSEG) -DMODE16=1 \
Kevin O'Connord705e5a2010-03-20 20:21:13 -040046 $(call cc-option,$(CC),--param large-stack-frame=4,-fno-inline)
Kevin O'Connor410680b2008-03-02 20:48:35 -050047CFLAGS16 = $(CFLAGS16INC) -g
Kevin O'Connorf076a3e2008-02-25 22:25:15 -050048
Kevin O'Connor30853762009-01-17 18:49:20 -050049all: $(OUT) $(OUT)bios.bin
Kevin O'Connorf076a3e2008-02-25 22:25:15 -050050
51# Run with "make V=1" to see the actual compile commands
52ifdef V
53Q=
54else
55Q=@
56endif
57
Kevin O'Connor2fc90bd2008-11-07 21:42:00 -050058OBJCOPY=objcopy
Kevin O'Connor202024a2009-01-17 10:41:28 -050059OBJDUMP=objdump
Kevin O'Connor2fc90bd2008-11-07 21:42:00 -050060STRIP=strip
61
Kevin O'Connorf076a3e2008-02-25 22:25:15 -050062.PHONY : all FORCE
63
Kevin O'Connor1f2c3072009-05-06 23:35:59 -040064vpath %.c src vgasrc
65vpath %.S src vgasrc
Kevin O'Connorf076a3e2008-02-25 22:25:15 -050066
67################ Build rules
Kevin O'Connor410680b2008-03-02 20:48:35 -050068
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040069# Verify the gcc configuration and test if -fwhole-program works.
Kevin O'Connor03f630e2009-03-26 20:45:36 -040070TESTGCC:=$(shell CC=$(CC) tools/test-gcc.sh)
71ifeq "$(TESTGCC)" "-1"
72$(error "Please upgrade GCC")
73endif
74
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040075ifndef COMPSTRAT
76COMPSTRAT=$(TESTGCC)
Kevin O'Connor231f7102009-01-25 16:11:27 -050077endif
78
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040079# Do a whole file compile - three methods are supported.
80ifeq "$(COMPSTRAT)" "1"
81# First method - use -fwhole-program without -combine.
82define whole-compile
83@echo " Compiling whole program $3"
84$(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
85$(Q)$(CC) $1 -fwhole-program -DWHOLE_PROGRAM -c $3.tmp.c -o $3
86endef
Kevin O'Connord82a1ca2009-06-17 20:33:41 -040087else
88ifeq "$(COMPSTRAT)" "2"
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040089# Second menthod - don't use -fwhole-program at all.
Kevin O'Connor410680b2008-03-02 20:48:35 -050090define whole-compile
91@echo " Compiling whole program $3"
Kevin O'Connor86cebee2008-11-06 18:57:10 -050092$(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
Kevin O'Connor410680b2008-03-02 20:48:35 -050093$(Q)$(CC) $1 -c $3.tmp.c -o $3
94endef
95else
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040096# Third (and preferred) method - use -fwhole-program with -combine
Kevin O'Connor410680b2008-03-02 20:48:35 -050097define whole-compile
98@echo " Compiling whole program $3"
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040099$(Q)$(CC) $1 -fwhole-program -DWHOLE_PROGRAM -combine -c $2 -o $3
Kevin O'Connor410680b2008-03-02 20:48:35 -0500100endef
101endif
Kevin O'Connord82a1ca2009-06-17 20:33:41 -0400102endif
Kevin O'Connor410680b2008-03-02 20:48:35 -0500103
Kevin O'Connor9ba1dea2010-05-01 09:50:13 -0400104%.strip.o: %.o
105 @echo " Stripping $@"
106 $(Q)$(STRIP) $< -o $@
Kevin O'Connor410680b2008-03-02 20:48:35 -0500107
Kevin O'Connor30853762009-01-17 18:49:20 -0500108$(OUT)%.s: %.c
Kevin O'Connor9e821222008-12-06 18:56:19 -0500109 @echo " Compiling to assembler $@"
Kevin O'Connor30853762009-01-17 18:49:20 -0500110 $(Q)$(CC) $(CFLAGS16INC) -S -c $< -o $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500111
112$(OUT)%.lds: %.lds.S
Kevin O'Connor9e821222008-12-06 18:56:19 -0500113 @echo " Precompiling $@"
Kevin O'Connord9a8b2d2008-11-16 09:17:02 -0500114 $(Q)$(CPP) -P -D__ASSEMBLY__ $< -o $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500115
Kevin O'Connor30853762009-01-17 18:49:20 -0500116$(OUT)asm-offsets.h: $(OUT)asm-offsets.s
Kevin O'Connor952974e2008-11-16 18:14:33 -0500117 @echo " Generating offset file $@"
118 $(Q)./tools/gen-offsets.sh $< $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500119
Kevin O'Connore6caca82009-07-13 20:31:35 -0400120
Kevin O'Connor9e821222008-12-06 18:56:19 -0500121$(OUT)ccode.16.s: ; $(call whole-compile, $(CFLAGS16) -S, $(addprefix src/, $(SRC16)),$@)
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500122
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500123$(OUT)code32seg.o: ; $(call whole-compile, $(CFLAGS32SEG), $(addprefix src/, $(SRC32SEG)),$@)
124
125$(OUT)ccode32flat.o: ; $(call whole-compile, $(CFLAGS32FLAT), $(addprefix src/, $(SRC32FLAT)),$@)
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400126
Kevin O'Connore6caca82009-07-13 20:31:35 -0400127$(OUT)code16.o: romlayout.S $(OUT)ccode.16.s $(OUT)asm-offsets.h
Kevin O'Connor9e821222008-12-06 18:56:19 -0500128 @echo " Compiling (16bit) $@"
129 $(Q)$(CC) $(CFLAGS16INC) -c -D__ASSEMBLY__ $< -o $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500130
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500131$(OUT)romlayout16.lds $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds $(OUT)code32flat.o: $(OUT)ccode32flat.o $(OUT)code32seg.o $(OUT)code16.o tools/layoutrom.py
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400132 @echo " Building ld scripts (version \"$(VERSION)\")"
133 $(Q)echo 'const char VERSION[] = "$(VERSION)";' > $(OUT)version.c
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500134 $(Q)$(CC) $(CFLAGS32FLAT) -c $(OUT)version.c -o $(OUT)version.o
Kevin O'Connor52a300f2009-12-26 23:32:57 -0500135 $(Q)$(LD) -melf_i386 -r $(OUT)ccode32flat.o $(OUT)version.o -o $(OUT)code32flat.o
136 $(Q)$(OBJDUMP) -thr $(OUT)code32flat.o > $(OUT)code32flat.o.objdump
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500137 $(Q)$(OBJDUMP) -thr $(OUT)code32seg.o > $(OUT)code32seg.o.objdump
Kevin O'Connore6caca82009-07-13 20:31:35 -0400138 $(Q)$(OBJDUMP) -thr $(OUT)code16.o > $(OUT)code16.o.objdump
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500139 $(Q)./tools/layoutrom.py $(OUT)code16.o.objdump $(OUT)code32seg.o.objdump $(OUT)code32flat.o.objdump $(OUT)romlayout16.lds $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds
Kevin O'Connor202024a2009-01-17 10:41:28 -0500140
Kevin O'Connor202024a2009-01-17 10:41:28 -0500141
Kevin O'Connor9ba1dea2010-05-01 09:50:13 -0400142$(OUT)rom16.o: $(OUT)code16.o $(OUT)romlayout16.lds
143 @echo " Linking $@"
144 $(Q)$(LD) -T $(OUT)romlayout16.lds $< -o $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500145
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500146$(OUT)rom32seg.o: $(OUT)code32seg.o $(OUT)romlayout32seg.lds
Kevin O'Connor114592f2009-09-28 21:32:08 -0400147 @echo " Linking $@"
Kevin O'Connor9ba1dea2010-05-01 09:50:13 -0400148 $(Q)$(LD) -T $(OUT)romlayout32seg.lds $< -o $@
149
150$(OUT)rom.o: $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o $(OUT)romlayout32flat.lds
151 @echo " Linking $@"
152 $(Q)$(LD) -T $(OUT)romlayout32flat.lds $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o -o $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500153
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400154$(OUT)bios.bin.elf $(OUT)bios.bin: $(OUT)rom.o tools/checkrom.py
Kevin O'Connor9bcc5272008-07-05 21:08:56 -0400155 @echo " Prepping $@"
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400156 $(Q)$(OBJDUMP) -thr $< > $<.objdump
157 $(Q)$(OBJCOPY) -O binary $< $(OUT)bios.bin.raw
158 $(Q)./tools/checkrom.py $<.objdump $(OUT)bios.bin.raw $(OUT)bios.bin
Kevin O'Connor3a337b22009-11-03 19:50:52 -0500159 $(Q)$(STRIP) -R .comment $< -o $(OUT)bios.bin.elf
Kevin O'Connor2fda7cb2008-07-05 20:41:53 -0400160
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500161
Kevin O'Connor1f2c3072009-05-06 23:35:59 -0400162################ VGA build rules
163
164# VGA src files
Kevin O'Connor8d8e0942009-05-17 21:14:46 -0400165SRCVGA=src/output.c src/util.c vgasrc/vga.c vgasrc/vgafb.c vgasrc/vgaio.c \
166 vgasrc/vgatables.c vgasrc/vgafonts.c vgasrc/clext.c
Kevin O'Connor1f2c3072009-05-06 23:35:59 -0400167
168$(OUT)vgaccode.16.s: ; $(call whole-compile, $(CFLAGS16) -S -Isrc, $(SRCVGA),$@)
169
170$(OUT)vgalayout16.o: vgaentry.S $(OUT)vgaccode.16.s $(OUT)asm-offsets.h
171 @echo " Compiling (16bit) $@"
172 $(Q)$(CC) $(CFLAGS16INC) -c -D__ASSEMBLY__ -Isrc $< -o $@
173
174$(OUT)vgarom.o: $(OUT)vgalayout16.o $(OUT)vgalayout.lds
175 @echo " Linking $@"
Kevin O'Connorc0693942009-06-10 21:56:01 -0400176 $(Q)$(LD) --gc-sections -T $(OUT)vgalayout.lds $(OUT)vgalayout16.o -o $@
Kevin O'Connor1f2c3072009-05-06 23:35:59 -0400177
178$(OUT)vgabios.bin.raw: $(OUT)vgarom.o
179 @echo " Extracting binary $@"
180 $(Q)$(OBJCOPY) -O binary $< $@
181
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400182$(OUT)vgabios.bin: $(OUT)vgabios.bin.raw tools/buildrom.py
Kevin O'Connor1f2c3072009-05-06 23:35:59 -0400183 @echo " Finalizing rom $@"
184 $(Q)./tools/buildrom.py $< $@
185
Kevin O'Connord91f9d42009-10-08 21:57:15 -0400186####### dsdt build rules
Isaku Yamahata12cbb432010-06-07 17:19:27 +0900187src/%.hex: src/%.dsl
Kevin O'Connord91f9d42009-10-08 21:57:15 -0400188 @echo "Compiling DSDT"
Isaku Yamahata12cbb432010-06-07 17:19:27 +0900189 $(Q)cpp -P $< > $(OUT)$*.dsl.i
190 $(Q)iasl -tc -p $(OUT)$* $(OUT)$*.dsl.i
191 $(Q)cp $(OUT)$*.hex $@
192
193$(OUT)ccode32flat.o: src/acpi-dsdt.hex
Kevin O'Connord91f9d42009-10-08 21:57:15 -0400194
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500195####### Generic rules
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500196clean:
Kevin O'Connor86cebee2008-11-06 18:57:10 -0500197 $(Q)rm -rf $(OUT)
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500198
199$(OUT):
Kevin O'Connor86cebee2008-11-06 18:57:10 -0500200 $(Q)mkdir $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500201
202-include $(OUT)*.d