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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'Connor6fc91b22010-01-10 00:38:24 -05008VERSION=pre-0.5.2-$(shell date +"%Y%m%d_%H%M%S")-$(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 \
Kevin O'Connor3b79f8b2010-02-27 13:43:47 -050017 usb.c usb-uhci.c usb-ohci.c usb-hid.c usb-msc.c
Kevin O'Connor871e0a02009-12-30 12:14:53 -050018SRC16=$(SRCBOTH) system.c disk.c apm.c font.c
Kevin O'Connor52a300f2009-12-26 23:32:57 -050019SRC32FLAT=$(SRCBOTH) post.c shadow.c memmap.c coreboot.c boot.c \
Kevin O'Connor592323f2009-04-26 23:17:49 -040020 acpi.c smm.c mptable.c smbios.c pciinit.c optionroms.c mtrr.c \
Kevin O'Connor3b79f8b2010-02-27 13:43:47 -050021 lzmadecode.c usb-hub.c paravirt.c
Kevin O'Connorc0031482010-01-01 13:03:17 -050022SRC32SEG=util.c output.c pci.c pcibios.c apm.c
Kevin O'Connorf076a3e2008-02-25 22:25:15 -050023
Kevin O'Connor786502d2008-02-27 10:41:41 -050024cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc \
25 /dev/null 2>&1`"; then echo "$(2)"; else echo "$(3)"; fi ;)
26
Kevin O'Connorbdce35f2008-02-26 21:33:14 -050027# Default compiler flags
Kevin O'Connorf9b25d32010-01-03 18:09:08 -050028COMMONCFLAGS = -Os -MD -Wall -Wno-strict-aliasing -Wold-style-definition \
29 $(call cc-option,$(CC),-Wtype-limits,) \
Kevin O'Connor1ca05b02010-01-03 17:43:37 -050030 -m32 -march=i386 -mregparm=3 -mpreferred-stack-boundary=2 \
31 -mrtd -minline-all-stringops \
32 -freg-struct-return -ffreestanding -fomit-frame-pointer \
33 -fno-delete-null-pointer-checks \
34 -ffunction-sections -fdata-sections -fno-common
Kevin O'Connor786502d2008-02-27 10:41:41 -050035COMMONCFLAGS += $(call cc-option,$(CC),-nopie,)
36COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector,)
37COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,)
38
Kevin O'Connor871e0a02009-12-30 12:14:53 -050039CFLAGS32FLAT = $(COMMONCFLAGS) -g -DMODE16=0 -DMODESEGMENT=0
40CFLAGSSEG = $(COMMONCFLAGS) -DMODESEGMENT=1 -fno-defer-pop \
41 $(call cc-option,$(CC),-fno-jump-tables,-DMANUAL_NO_JUMP_TABLE) \
42 $(call cc-option,$(CC),-fno-tree-switch-conversion,)
43CFLAGS32SEG = $(CFLAGSSEG) -DMODE16=0 -g
44CFLAGS16INC = $(CFLAGSSEG) -DMODE16=1 \
Kevin O'Connor96462242009-01-01 17:54:16 -050045 $(call cc-option,$(CC),--param large-stack-frame=4,)
Kevin O'Connor410680b2008-03-02 20:48:35 -050046CFLAGS16 = $(CFLAGS16INC) -g
Kevin O'Connorf076a3e2008-02-25 22:25:15 -050047
Kevin O'Connor30853762009-01-17 18:49:20 -050048all: $(OUT) $(OUT)bios.bin
Kevin O'Connorf076a3e2008-02-25 22:25:15 -050049
50# Run with "make V=1" to see the actual compile commands
51ifdef V
52Q=
53else
54Q=@
55endif
56
Kevin O'Connor2fc90bd2008-11-07 21:42:00 -050057OBJCOPY=objcopy
Kevin O'Connor202024a2009-01-17 10:41:28 -050058OBJDUMP=objdump
Kevin O'Connor2fc90bd2008-11-07 21:42:00 -050059STRIP=strip
60
Kevin O'Connorf076a3e2008-02-25 22:25:15 -050061.PHONY : all FORCE
62
Kevin O'Connor1f2c3072009-05-06 23:35:59 -040063vpath %.c src vgasrc
64vpath %.S src vgasrc
Kevin O'Connorf076a3e2008-02-25 22:25:15 -050065
66################ Build rules
Kevin O'Connor410680b2008-03-02 20:48:35 -050067
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040068# Verify the gcc configuration and test if -fwhole-program works.
Kevin O'Connor03f630e2009-03-26 20:45:36 -040069TESTGCC:=$(shell CC=$(CC) tools/test-gcc.sh)
70ifeq "$(TESTGCC)" "-1"
71$(error "Please upgrade GCC")
72endif
73
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040074ifndef COMPSTRAT
75COMPSTRAT=$(TESTGCC)
Kevin O'Connor231f7102009-01-25 16:11:27 -050076endif
77
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040078# Do a whole file compile - three methods are supported.
79ifeq "$(COMPSTRAT)" "1"
80# First method - use -fwhole-program without -combine.
81define whole-compile
82@echo " Compiling whole program $3"
83$(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
84$(Q)$(CC) $1 -fwhole-program -DWHOLE_PROGRAM -c $3.tmp.c -o $3
85endef
Kevin O'Connord82a1ca2009-06-17 20:33:41 -040086else
87ifeq "$(COMPSTRAT)" "2"
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040088# Second menthod - don't use -fwhole-program at all.
Kevin O'Connor410680b2008-03-02 20:48:35 -050089define whole-compile
90@echo " Compiling whole program $3"
Kevin O'Connor86cebee2008-11-06 18:57:10 -050091$(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
Kevin O'Connor410680b2008-03-02 20:48:35 -050092$(Q)$(CC) $1 -c $3.tmp.c -o $3
93endef
94else
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040095# Third (and preferred) method - use -fwhole-program with -combine
Kevin O'Connor410680b2008-03-02 20:48:35 -050096define whole-compile
97@echo " Compiling whole program $3"
Kevin O'Connor0942e7f2009-06-15 22:27:01 -040098$(Q)$(CC) $1 -fwhole-program -DWHOLE_PROGRAM -combine -c $2 -o $3
Kevin O'Connor410680b2008-03-02 20:48:35 -050099endef
100endif
Kevin O'Connord82a1ca2009-06-17 20:33:41 -0400101endif
Kevin O'Connor410680b2008-03-02 20:48:35 -0500102
103
Kevin O'Connor30853762009-01-17 18:49:20 -0500104$(OUT)%.s: %.c
Kevin O'Connor9e821222008-12-06 18:56:19 -0500105 @echo " Compiling to assembler $@"
Kevin O'Connor30853762009-01-17 18:49:20 -0500106 $(Q)$(CC) $(CFLAGS16INC) -S -c $< -o $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500107
108$(OUT)%.lds: %.lds.S
Kevin O'Connor9e821222008-12-06 18:56:19 -0500109 @echo " Precompiling $@"
Kevin O'Connord9a8b2d2008-11-16 09:17:02 -0500110 $(Q)$(CPP) -P -D__ASSEMBLY__ $< -o $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500111
Kevin O'Connor30853762009-01-17 18:49:20 -0500112$(OUT)asm-offsets.h: $(OUT)asm-offsets.s
Kevin O'Connor952974e2008-11-16 18:14:33 -0500113 @echo " Generating offset file $@"
114 $(Q)./tools/gen-offsets.sh $< $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500115
Kevin O'Connore6caca82009-07-13 20:31:35 -0400116
Kevin O'Connor9e821222008-12-06 18:56:19 -0500117$(OUT)ccode.16.s: ; $(call whole-compile, $(CFLAGS16) -S, $(addprefix src/, $(SRC16)),$@)
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500118
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500119$(OUT)code32seg.o: ; $(call whole-compile, $(CFLAGS32SEG), $(addprefix src/, $(SRC32SEG)),$@)
120
121$(OUT)ccode32flat.o: ; $(call whole-compile, $(CFLAGS32FLAT), $(addprefix src/, $(SRC32FLAT)),$@)
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400122
Kevin O'Connore6caca82009-07-13 20:31:35 -0400123$(OUT)code16.o: romlayout.S $(OUT)ccode.16.s $(OUT)asm-offsets.h
Kevin O'Connor9e821222008-12-06 18:56:19 -0500124 @echo " Compiling (16bit) $@"
125 $(Q)$(CC) $(CFLAGS16INC) -c -D__ASSEMBLY__ $< -o $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500126
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500127$(OUT)romlayout16.lds $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds $(OUT)code32flat.o: $(OUT)ccode32flat.o $(OUT)code32seg.o $(OUT)code16.o tools/layoutrom.py
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400128 @echo " Building ld scripts (version \"$(VERSION)\")"
129 $(Q)echo 'const char VERSION[] = "$(VERSION)";' > $(OUT)version.c
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500130 $(Q)$(CC) $(CFLAGS32FLAT) -c $(OUT)version.c -o $(OUT)version.o
Kevin O'Connor52a300f2009-12-26 23:32:57 -0500131 $(Q)$(LD) -melf_i386 -r $(OUT)ccode32flat.o $(OUT)version.o -o $(OUT)code32flat.o
132 $(Q)$(OBJDUMP) -thr $(OUT)code32flat.o > $(OUT)code32flat.o.objdump
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500133 $(Q)$(OBJDUMP) -thr $(OUT)code32seg.o > $(OUT)code32seg.o.objdump
Kevin O'Connore6caca82009-07-13 20:31:35 -0400134 $(Q)$(OBJDUMP) -thr $(OUT)code16.o > $(OUT)code16.o.objdump
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500135 $(Q)./tools/layoutrom.py $(OUT)code16.o.objdump $(OUT)code32seg.o.objdump $(OUT)code32flat.o.objdump $(OUT)romlayout16.lds $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds
Kevin O'Connor202024a2009-01-17 10:41:28 -0500136
Kevin O'Connor202024a2009-01-17 10:41:28 -0500137
Kevin O'Connor52a300f2009-12-26 23:32:57 -0500138$(OUT)rom16.o: $(OUT)code16.o $(OUT)rom32flat.o $(OUT)romlayout16.lds
Kevin O'Connor14458432009-05-23 18:21:18 -0400139 @echo " Linking (no relocs) $@"
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400140 $(Q)$(LD) -r -T $(OUT)romlayout16.lds $< -o $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500141
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500142$(OUT)rom32seg.o: $(OUT)code32seg.o $(OUT)romlayout32seg.lds
143 @echo " Linking (no relocs) $@"
144 $(Q)$(LD) -r -T $(OUT)romlayout32seg.lds $< -o $@
145
Kevin O'Connor52a300f2009-12-26 23:32:57 -0500146$(OUT)rom32flat.o: $(OUT)code32flat.o $(OUT)romlayout32flat.lds
Kevin O'Connore6caca82009-07-13 20:31:35 -0400147 @echo " Linking (no relocs) $@"
Kevin O'Connor52a300f2009-12-26 23:32:57 -0500148 $(Q)$(LD) -r -T $(OUT)romlayout32flat.lds $< -o $@
Kevin O'Connore6caca82009-07-13 20:31:35 -0400149
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500150$(OUT)rom.o: $(OUT)rom16.o $(OUT)rom32seg.o $(OUT)rom32flat.o $(OUT)rombios16.lds $(OUT)rombios32seg.lds $(OUT)rombios.lds
Kevin O'Connor114592f2009-09-28 21:32:08 -0400151 @echo " Linking $@"
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500152 $(Q)$(LD) -T $(OUT)rombios16.lds $(OUT)rom16.o -R $(OUT)rom32seg.o -R $(OUT)rom32flat.o -o $(OUT)rom16.reloc.o
Kevin O'Connor7173f6f2009-05-27 22:23:33 -0400153 $(Q)$(STRIP) $(OUT)rom16.reloc.o -o $(OUT)rom16.final.o
Kevin O'Connor5c3f5dd2009-06-22 20:05:56 -0400154 $(Q)$(OBJCOPY) --adjust-vma 0xf0000 $(OUT)rom16.o $(OUT)rom16.moved.o
Kevin O'Connor871e0a02009-12-30 12:14:53 -0500155 $(Q)$(LD) -T $(OUT)rombios32seg.lds $(OUT)rom32seg.o -R $(OUT)rom16.o -R $(OUT)rom32flat.o -o $(OUT)rom32seg.reloc.o
156 $(Q)$(STRIP) $(OUT)rom32seg.reloc.o -o $(OUT)rom32seg.final.o
157 $(Q)$(OBJCOPY) --adjust-vma 0xf0000 $(OUT)rom32seg.o $(OUT)rom32seg.moved.o
158 $(Q)$(LD) -T $(OUT)rombios.lds $(OUT)rom16.final.o $(OUT)rom32seg.final.o $(OUT)rom32flat.o -R $(OUT)rom16.moved.o -R $(OUT)rom32seg.moved.o -o $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500159
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400160$(OUT)bios.bin.elf $(OUT)bios.bin: $(OUT)rom.o tools/checkrom.py
Kevin O'Connor9bcc5272008-07-05 21:08:56 -0400161 @echo " Prepping $@"
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400162 $(Q)$(OBJDUMP) -thr $< > $<.objdump
163 $(Q)$(OBJCOPY) -O binary $< $(OUT)bios.bin.raw
164 $(Q)./tools/checkrom.py $<.objdump $(OUT)bios.bin.raw $(OUT)bios.bin
Kevin O'Connor3a337b22009-11-03 19:50:52 -0500165 $(Q)$(STRIP) -R .comment $< -o $(OUT)bios.bin.elf
Kevin O'Connor2fda7cb2008-07-05 20:41:53 -0400166
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500167
Kevin O'Connor1f2c3072009-05-06 23:35:59 -0400168################ VGA build rules
169
170# VGA src files
Kevin O'Connor8d8e0942009-05-17 21:14:46 -0400171SRCVGA=src/output.c src/util.c vgasrc/vga.c vgasrc/vgafb.c vgasrc/vgaio.c \
172 vgasrc/vgatables.c vgasrc/vgafonts.c vgasrc/clext.c
Kevin O'Connor1f2c3072009-05-06 23:35:59 -0400173
174$(OUT)vgaccode.16.s: ; $(call whole-compile, $(CFLAGS16) -S -Isrc, $(SRCVGA),$@)
175
176$(OUT)vgalayout16.o: vgaentry.S $(OUT)vgaccode.16.s $(OUT)asm-offsets.h
177 @echo " Compiling (16bit) $@"
178 $(Q)$(CC) $(CFLAGS16INC) -c -D__ASSEMBLY__ -Isrc $< -o $@
179
180$(OUT)vgarom.o: $(OUT)vgalayout16.o $(OUT)vgalayout.lds
181 @echo " Linking $@"
Kevin O'Connorc0693942009-06-10 21:56:01 -0400182 $(Q)$(LD) --gc-sections -T $(OUT)vgalayout.lds $(OUT)vgalayout16.o -o $@
Kevin O'Connor1f2c3072009-05-06 23:35:59 -0400183
184$(OUT)vgabios.bin.raw: $(OUT)vgarom.o
185 @echo " Extracting binary $@"
186 $(Q)$(OBJCOPY) -O binary $< $@
187
Kevin O'Connor5b8f8092009-09-20 19:47:45 -0400188$(OUT)vgabios.bin: $(OUT)vgabios.bin.raw tools/buildrom.py
Kevin O'Connor1f2c3072009-05-06 23:35:59 -0400189 @echo " Finalizing rom $@"
190 $(Q)./tools/buildrom.py $< $@
191
Kevin O'Connord91f9d42009-10-08 21:57:15 -0400192####### dsdt build rules
193src/acpi-dsdt.hex: src/acpi-dsdt.dsl
194 @echo "Compiling DSDT"
195 $(Q)cpp -P $< > $(OUT)acpi-dsdt.dsl.i
196 $(Q)iasl -tc -p $@ $(OUT)acpi-dsdt.dsl.i
197 $(Q)rm $(OUT)acpi-dsdt.dsl.i
198
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500199####### Generic rules
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500200clean:
Kevin O'Connor86cebee2008-11-06 18:57:10 -0500201 $(Q)rm -rf $(OUT)
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500202
203$(OUT):
Kevin O'Connor86cebee2008-11-06 18:57:10 -0500204 $(Q)mkdir $@
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500205
206-include $(OUT)*.d