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1.1 root 1: # SeaBIOS build system
2: #
3: # Copyright (C) 2008,2009 Kevin O'Connor <[email protected]>
4: #
5: # This file may be distributed under the terms of the GNU LGPLv3 license.
6:
7: # Program version
1.1.1.4 ! root 8: VERSION=0.6.1.2-$(shell date +"%Y%m%d_%H%M%S")-$(shell hostname)
1.1 root 9:
10: # Output directory
11: OUT=out/
12:
13: # Source files
14: SRCBOTH=misc.c pmm.c stacks.c output.c util.c block.c floppy.c ata.c mouse.c \
15: kbd.c pci.c serial.c clock.c pic.c cdrom.c ps2port.c smp.c resume.c \
1.1.1.3 root 16: pnpbios.c pirtable.c vgahooks.c ramdisk.c pcibios.c blockcmd.c \
17: 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
1.1.1.2 root 19: SRC16=$(SRCBOTH) system.c disk.c apm.c font.c
20: SRC32FLAT=$(SRCBOTH) post.c shadow.c memmap.c coreboot.c boot.c \
1.1 root 21: acpi.c smm.c mptable.c smbios.c pciinit.c optionroms.c mtrr.c \
1.1.1.3 root 22: lzmadecode.c bootsplash.c jpeg.c usb-hub.c paravirt.c dev-i440fx.c
23: SRC32SEG=util.c output.c pci.c pcibios.c apm.c stacks.c
1.1 root 24:
25: cc-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:
28: # Default compiler flags
1.1.1.2 root 29: COMMONCFLAGS = -Os -MD -Wall -Wno-strict-aliasing -Wold-style-definition \
30: $(call cc-option,$(CC),-Wtype-limits,) \
31: -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
1.1 root 36: COMMONCFLAGS += $(call cc-option,$(CC),-nopie,)
37: COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector,)
38: COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,)
39:
1.1.1.2 root 40: CFLAGS32FLAT = $(COMMONCFLAGS) -g -DMODE16=0 -DMODESEGMENT=0
41: CFLAGSSEG = $(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,)
44: CFLAGS32SEG = $(CFLAGSSEG) -DMODE16=0 -g
45: CFLAGS16INC = $(CFLAGSSEG) -DMODE16=1 \
1.1.1.3 root 46: $(call cc-option,$(CC),--param large-stack-frame=4,-fno-inline)
1.1 root 47: CFLAGS16 = $(CFLAGS16INC) -g
48:
49: all: $(OUT) $(OUT)bios.bin
50:
51: # Run with "make V=1" to see the actual compile commands
52: ifdef V
53: Q=
54: else
55: Q=@
56: endif
57:
58: OBJCOPY=objcopy
59: OBJDUMP=objdump
60: STRIP=strip
61:
62: .PHONY : all FORCE
63:
64: vpath %.c src vgasrc
65: vpath %.S src vgasrc
66:
67: ################ Build rules
68:
69: # Verify the gcc configuration and test if -fwhole-program works.
1.1.1.4 ! root 70: TESTGCC:=$(shell CC="$(CC)" tools/test-gcc.sh)
1.1 root 71: ifeq "$(TESTGCC)" "-1"
72: $(error "Please upgrade GCC")
73: endif
74:
75: ifndef COMPSTRAT
76: COMPSTRAT=$(TESTGCC)
77: endif
78:
79: # Do a whole file compile - three methods are supported.
80: ifeq "$(COMPSTRAT)" "1"
81: # First method - use -fwhole-program without -combine.
82: define 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 $3
86: endef
87: else
88: ifeq "$(COMPSTRAT)" "2"
89: # Second menthod - don't use -fwhole-program at all.
90: define whole-compile
91: @echo " Compiling whole program $3"
92: $(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
93: $(Q)$(CC) $1 -c $3.tmp.c -o $3
94: endef
95: else
96: # Third (and preferred) method - use -fwhole-program with -combine
97: define whole-compile
98: @echo " Compiling whole program $3"
99: $(Q)$(CC) $1 -fwhole-program -DWHOLE_PROGRAM -combine -c $2 -o $3
100: endef
101: endif
102: endif
103:
1.1.1.3 root 104: %.strip.o: %.o
105: @echo " Stripping $@"
106: $(Q)$(STRIP) $< -o $@
1.1 root 107:
108: $(OUT)%.s: %.c
109: @echo " Compiling to assembler $@"
110: $(Q)$(CC) $(CFLAGS16INC) -S -c $< -o $@
111:
112: $(OUT)%.lds: %.lds.S
113: @echo " Precompiling $@"
114: $(Q)$(CPP) -P -D__ASSEMBLY__ $< -o $@
115:
116: $(OUT)asm-offsets.h: $(OUT)asm-offsets.s
117: @echo " Generating offset file $@"
118: $(Q)./tools/gen-offsets.sh $< $@
119:
120:
121: $(OUT)ccode.16.s: ; $(call whole-compile, $(CFLAGS16) -S, $(addprefix src/, $(SRC16)),$@)
122:
1.1.1.2 root 123: $(OUT)code32seg.o: ; $(call whole-compile, $(CFLAGS32SEG), $(addprefix src/, $(SRC32SEG)),$@)
124:
125: $(OUT)ccode32flat.o: ; $(call whole-compile, $(CFLAGS32FLAT), $(addprefix src/, $(SRC32FLAT)),$@)
1.1 root 126:
127: $(OUT)code16.o: romlayout.S $(OUT)ccode.16.s $(OUT)asm-offsets.h
128: @echo " Compiling (16bit) $@"
129: $(Q)$(CC) $(CFLAGS16INC) -c -D__ASSEMBLY__ $< -o $@
130:
1.1.1.2 root 131: $(OUT)romlayout16.lds $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds $(OUT)code32flat.o: $(OUT)ccode32flat.o $(OUT)code32seg.o $(OUT)code16.o tools/layoutrom.py
1.1 root 132: @echo " Building ld scripts (version \"$(VERSION)\")"
133: $(Q)echo 'const char VERSION[] = "$(VERSION)";' > $(OUT)version.c
1.1.1.2 root 134: $(Q)$(CC) $(CFLAGS32FLAT) -c $(OUT)version.c -o $(OUT)version.o
135: $(Q)$(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
137: $(Q)$(OBJDUMP) -thr $(OUT)code32seg.o > $(OUT)code32seg.o.objdump
1.1 root 138: $(Q)$(OBJDUMP) -thr $(OUT)code16.o > $(OUT)code16.o.objdump
1.1.1.2 root 139: $(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
1.1 root 140:
141:
1.1.1.3 root 142: $(OUT)rom16.o: $(OUT)code16.o $(OUT)romlayout16.lds
143: @echo " Linking $@"
144: $(Q)$(LD) -T $(OUT)romlayout16.lds $< -o $@
1.1 root 145:
1.1.1.2 root 146: $(OUT)rom32seg.o: $(OUT)code32seg.o $(OUT)romlayout32seg.lds
1.1.1.3 root 147: @echo " Linking $@"
148: $(Q)$(LD) -T $(OUT)romlayout32seg.lds $< -o $@
1.1 root 149:
1.1.1.3 root 150: $(OUT)rom.o: $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o $(OUT)romlayout32flat.lds
1.1 root 151: @echo " Linking $@"
1.1.1.3 root 152: $(Q)$(LD) -T $(OUT)romlayout32flat.lds $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o -o $@
1.1 root 153:
154: $(OUT)bios.bin.elf $(OUT)bios.bin: $(OUT)rom.o tools/checkrom.py
155: @echo " Prepping $@"
156: $(Q)$(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
159: $(Q)$(STRIP) -R .comment $< -o $(OUT)bios.bin.elf
160:
161:
162: ################ VGA build rules
163:
164: # VGA src files
165: SRCVGA=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
167:
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 $@"
176: $(Q)$(LD) --gc-sections -T $(OUT)vgalayout.lds $(OUT)vgalayout16.o -o $@
177:
178: $(OUT)vgabios.bin.raw: $(OUT)vgarom.o
179: @echo " Extracting binary $@"
180: $(Q)$(OBJCOPY) -O binary $< $@
181:
182: $(OUT)vgabios.bin: $(OUT)vgabios.bin.raw tools/buildrom.py
183: @echo " Finalizing rom $@"
184: $(Q)./tools/buildrom.py $< $@
185:
186: ####### dsdt build rules
1.1.1.3 root 187: src/%.hex: src/%.dsl
1.1 root 188: @echo "Compiling DSDT"
1.1.1.3 root 189: $(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
1.1 root 194:
195: ####### Generic rules
196: clean:
197: $(Q)rm -rf $(OUT)
198:
199: $(OUT):
200: $(Q)mkdir $@
201:
202: -include $(OUT)*.d
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