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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
1.1.1.2 ! root 8: VERSION=0.5.1-$(shell date +"%Y%m%d_%H%M%S")-$(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 \
1.1.1.2 ! root 16: pnpbios.c pirtable.c vgahooks.c ramdisk.c pcibios.c \
1.1 root 17: usb.c usb-uhci.c usb-ohci.c usb-hid.c paravirt.c
1.1.1.2 ! root 18: SRC16=$(SRCBOTH) system.c disk.c apm.c font.c
! 19: SRC32FLAT=$(SRCBOTH) post.c shadow.c memmap.c coreboot.c boot.c \
1.1 root 20: acpi.c smm.c mptable.c smbios.c pciinit.c optionroms.c mtrr.c \
21: lzmadecode.c
1.1.1.2 ! root 22: SRC32SEG=util.c output.c pci.c pcibios.c apm.c
1.1 root 23:
24: cc-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:
27: # Default compiler flags
1.1.1.2 ! root 28: COMMONCFLAGS = -Os -MD -Wall -Wno-strict-aliasing -Wold-style-definition \
! 29: $(call cc-option,$(CC),-Wtype-limits,) \
! 30: -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
1.1 root 35: COMMONCFLAGS += $(call cc-option,$(CC),-nopie,)
36: COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector,)
37: COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,)
38:
1.1.1.2 ! root 39: CFLAGS32FLAT = $(COMMONCFLAGS) -g -DMODE16=0 -DMODESEGMENT=0
! 40: CFLAGSSEG = $(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,)
! 43: CFLAGS32SEG = $(CFLAGSSEG) -DMODE16=0 -g
! 44: CFLAGS16INC = $(CFLAGSSEG) -DMODE16=1 \
1.1 root 45: $(call cc-option,$(CC),--param large-stack-frame=4,)
46: CFLAGS16 = $(CFLAGS16INC) -g
47:
48: all: $(OUT) $(OUT)bios.bin
49:
50: # Run with "make V=1" to see the actual compile commands
51: ifdef V
52: Q=
53: else
54: Q=@
55: endif
56:
57: OBJCOPY=objcopy
58: OBJDUMP=objdump
59: STRIP=strip
60:
61: .PHONY : all FORCE
62:
63: vpath %.c src vgasrc
64: vpath %.S src vgasrc
65:
66: ################ Build rules
67:
68: # Verify the gcc configuration and test if -fwhole-program works.
69: TESTGCC:=$(shell CC=$(CC) tools/test-gcc.sh)
70: ifeq "$(TESTGCC)" "-1"
71: $(error "Please upgrade GCC")
72: endif
73:
74: ifndef COMPSTRAT
75: COMPSTRAT=$(TESTGCC)
76: endif
77:
78: # Do a whole file compile - three methods are supported.
79: ifeq "$(COMPSTRAT)" "1"
80: # First method - use -fwhole-program without -combine.
81: define 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 $3
85: endef
86: else
87: ifeq "$(COMPSTRAT)" "2"
88: # Second menthod - don't use -fwhole-program at all.
89: define whole-compile
90: @echo " Compiling whole program $3"
91: $(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
92: $(Q)$(CC) $1 -c $3.tmp.c -o $3
93: endef
94: else
95: # Third (and preferred) method - use -fwhole-program with -combine
96: define whole-compile
97: @echo " Compiling whole program $3"
98: $(Q)$(CC) $1 -fwhole-program -DWHOLE_PROGRAM -combine -c $2 -o $3
99: endef
100: endif
101: endif
102:
103:
104: $(OUT)%.s: %.c
105: @echo " Compiling to assembler $@"
106: $(Q)$(CC) $(CFLAGS16INC) -S -c $< -o $@
107:
108: $(OUT)%.lds: %.lds.S
109: @echo " Precompiling $@"
110: $(Q)$(CPP) -P -D__ASSEMBLY__ $< -o $@
111:
112: $(OUT)asm-offsets.h: $(OUT)asm-offsets.s
113: @echo " Generating offset file $@"
114: $(Q)./tools/gen-offsets.sh $< $@
115:
116:
117: $(OUT)ccode.16.s: ; $(call whole-compile, $(CFLAGS16) -S, $(addprefix src/, $(SRC16)),$@)
118:
1.1.1.2 ! root 119: $(OUT)code32seg.o: ; $(call whole-compile, $(CFLAGS32SEG), $(addprefix src/, $(SRC32SEG)),$@)
! 120:
! 121: $(OUT)ccode32flat.o: ; $(call whole-compile, $(CFLAGS32FLAT), $(addprefix src/, $(SRC32FLAT)),$@)
1.1 root 122:
123: $(OUT)code16.o: romlayout.S $(OUT)ccode.16.s $(OUT)asm-offsets.h
124: @echo " Compiling (16bit) $@"
125: $(Q)$(CC) $(CFLAGS16INC) -c -D__ASSEMBLY__ $< -o $@
126:
1.1.1.2 ! root 127: $(OUT)romlayout16.lds $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds $(OUT)code32flat.o: $(OUT)ccode32flat.o $(OUT)code32seg.o $(OUT)code16.o tools/layoutrom.py
1.1 root 128: @echo " Building ld scripts (version \"$(VERSION)\")"
129: $(Q)echo 'const char VERSION[] = "$(VERSION)";' > $(OUT)version.c
1.1.1.2 ! root 130: $(Q)$(CC) $(CFLAGS32FLAT) -c $(OUT)version.c -o $(OUT)version.o
! 131: $(Q)$(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
! 133: $(Q)$(OBJDUMP) -thr $(OUT)code32seg.o > $(OUT)code32seg.o.objdump
1.1 root 134: $(Q)$(OBJDUMP) -thr $(OUT)code16.o > $(OUT)code16.o.objdump
1.1.1.2 ! root 135: $(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 136:
137:
1.1.1.2 ! root 138: $(OUT)rom16.o: $(OUT)code16.o $(OUT)rom32flat.o $(OUT)romlayout16.lds
1.1 root 139: @echo " Linking (no relocs) $@"
140: $(Q)$(LD) -r -T $(OUT)romlayout16.lds $< -o $@
141:
1.1.1.2 ! root 142: $(OUT)rom32seg.o: $(OUT)code32seg.o $(OUT)romlayout32seg.lds
! 143: @echo " Linking (no relocs) $@"
! 144: $(Q)$(LD) -r -T $(OUT)romlayout32seg.lds $< -o $@
! 145:
! 146: $(OUT)rom32flat.o: $(OUT)code32flat.o $(OUT)romlayout32flat.lds
1.1 root 147: @echo " Linking (no relocs) $@"
1.1.1.2 ! root 148: $(Q)$(LD) -r -T $(OUT)romlayout32flat.lds $< -o $@
1.1 root 149:
1.1.1.2 ! root 150: $(OUT)rom.o: $(OUT)rom16.o $(OUT)rom32seg.o $(OUT)rom32flat.o $(OUT)rombios16.lds $(OUT)rombios32seg.lds $(OUT)rombios.lds
1.1 root 151: @echo " Linking $@"
1.1.1.2 ! root 152: $(Q)$(LD) -T $(OUT)rombios16.lds $(OUT)rom16.o -R $(OUT)rom32seg.o -R $(OUT)rom32flat.o -o $(OUT)rom16.reloc.o
1.1 root 153: $(Q)$(STRIP) $(OUT)rom16.reloc.o -o $(OUT)rom16.final.o
154: $(Q)$(OBJCOPY) --adjust-vma 0xf0000 $(OUT)rom16.o $(OUT)rom16.moved.o
1.1.1.2 ! root 155: $(Q)$(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 $@
1.1 root 159:
160: $(OUT)bios.bin.elf $(OUT)bios.bin: $(OUT)rom.o tools/checkrom.py
161: @echo " Prepping $@"
162: $(Q)$(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
165: $(Q)$(STRIP) -R .comment $< -o $(OUT)bios.bin.elf
166:
167:
168: ################ VGA build rules
169:
170: # VGA src files
171: SRCVGA=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
173:
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 $@"
182: $(Q)$(LD) --gc-sections -T $(OUT)vgalayout.lds $(OUT)vgalayout16.o -o $@
183:
184: $(OUT)vgabios.bin.raw: $(OUT)vgarom.o
185: @echo " Extracting binary $@"
186: $(Q)$(OBJCOPY) -O binary $< $@
187:
188: $(OUT)vgabios.bin: $(OUT)vgabios.bin.raw tools/buildrom.py
189: @echo " Finalizing rom $@"
190: $(Q)./tools/buildrom.py $< $@
191:
192: ####### dsdt build rules
193: src/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:
199: ####### Generic rules
200: clean:
201: $(Q)rm -rf $(OUT)
202:
203: $(OUT):
204: $(Q)mkdir $@
205:
206: -include $(OUT)*.d
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