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1.1 root 1: # SeaBIOS build system
2: #
1.1.1.5 root 3: # Copyright (C) 2008-2010 Kevin O'Connor <[email protected]>
1.1 root 4: #
5: # This file may be distributed under the terms of the GNU LGPLv3 license.
6:
7: # Program version
1.1.1.5 root 8: VERSION=pre-0.6.3-$(shell date +"%Y%m%d_%H%M%S")-$(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 \
1.1.1.5 root 18: virtio-ring.c virtio-pci.c virtio-blk.c apm.c ahci.c
19: SRC16=$(SRCBOTH) system.c disk.c font.c
1.1.1.2 root 20: SRC32FLAT=$(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 \
1.1.1.6 ! root 22: lzmadecode.c bootsplash.c jpeg.c usb-hub.c paravirt.c \
! 23: biostables.c xen.c bmp.c
1.1.1.3 root 24: SRC32SEG=util.c output.c pci.c pcibios.c apm.c stacks.c
1.1 root 25:
26: cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc \
27: /dev/null 2>&1`"; then echo "$(2)"; else echo "$(3)"; fi ;)
28:
29: # Default compiler flags
1.1.1.5 root 30: COMMONCFLAGS = -I$(OUT) -Os -MD \
31: -Wall -Wno-strict-aliasing -Wold-style-definition \
1.1.1.2 root 32: $(call cc-option,$(CC),-Wtype-limits,) \
33: -m32 -march=i386 -mregparm=3 -mpreferred-stack-boundary=2 \
34: -mrtd -minline-all-stringops \
35: -freg-struct-return -ffreestanding -fomit-frame-pointer \
36: -fno-delete-null-pointer-checks \
37: -ffunction-sections -fdata-sections -fno-common
1.1 root 38: COMMONCFLAGS += $(call cc-option,$(CC),-nopie,)
39: COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector,)
40: COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,)
41:
1.1.1.2 root 42: CFLAGS32FLAT = $(COMMONCFLAGS) -g -DMODE16=0 -DMODESEGMENT=0
43: CFLAGSSEG = $(COMMONCFLAGS) -DMODESEGMENT=1 -fno-defer-pop \
44: $(call cc-option,$(CC),-fno-jump-tables,-DMANUAL_NO_JUMP_TABLE) \
45: $(call cc-option,$(CC),-fno-tree-switch-conversion,)
46: CFLAGS32SEG = $(CFLAGSSEG) -DMODE16=0 -g
47: CFLAGS16INC = $(CFLAGSSEG) -DMODE16=1 \
1.1.1.3 root 48: $(call cc-option,$(CC),--param large-stack-frame=4,-fno-inline)
1.1 root 49: CFLAGS16 = $(CFLAGS16INC) -g
50:
51: all: $(OUT) $(OUT)bios.bin
52:
53: # Run with "make V=1" to see the actual compile commands
54: ifdef V
55: Q=
56: else
57: Q=@
1.1.1.5 root 58: MAKEFLAGS += --no-print-directory
1.1 root 59: endif
60:
61: OBJCOPY=objcopy
62: OBJDUMP=objdump
63: STRIP=strip
64:
1.1.1.5 root 65: .PHONY : all clean distclean FORCE
1.1 root 66:
67: vpath %.c src vgasrc
68: vpath %.S src vgasrc
69:
70: ################ Build rules
71:
72: # Verify the gcc configuration and test if -fwhole-program works.
1.1.1.6 ! root 73: TESTGCC:=$(shell CC="$(CC)" LD="$(LD)" tools/test-gcc.sh)
1.1 root 74: ifeq "$(TESTGCC)" "-1"
1.1.1.6 ! root 75: $(error "Please upgrade GCC and/or binutils")
1.1 root 76: endif
77:
78: ifndef COMPSTRAT
79: COMPSTRAT=$(TESTGCC)
80: endif
81:
82: # Do a whole file compile - three methods are supported.
83: ifeq "$(COMPSTRAT)" "1"
84: # First method - use -fwhole-program without -combine.
85: define whole-compile
86: @echo " Compiling whole program $3"
87: $(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
88: $(Q)$(CC) $1 -fwhole-program -DWHOLE_PROGRAM -c $3.tmp.c -o $3
89: endef
90: else
91: ifeq "$(COMPSTRAT)" "2"
92: # Second menthod - don't use -fwhole-program at all.
93: define whole-compile
94: @echo " Compiling whole program $3"
95: $(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
96: $(Q)$(CC) $1 -c $3.tmp.c -o $3
97: endef
98: else
99: # Third (and preferred) method - use -fwhole-program with -combine
100: define whole-compile
101: @echo " Compiling whole program $3"
102: $(Q)$(CC) $1 -fwhole-program -DWHOLE_PROGRAM -combine -c $2 -o $3
103: endef
104: endif
105: endif
106:
1.1.1.3 root 107: %.strip.o: %.o
108: @echo " Stripping $@"
109: $(Q)$(STRIP) $< -o $@
1.1 root 110:
111: $(OUT)%.s: %.c
112: @echo " Compiling to assembler $@"
113: $(Q)$(CC) $(CFLAGS16INC) -S -c $< -o $@
114:
115: $(OUT)%.lds: %.lds.S
116: @echo " Precompiling $@"
117: $(Q)$(CPP) -P -D__ASSEMBLY__ $< -o $@
118:
1.1.1.5 root 119: $(OUT)asm-offsets.s: $(OUT)autoconf.h
120:
1.1 root 121: $(OUT)asm-offsets.h: $(OUT)asm-offsets.s
122: @echo " Generating offset file $@"
123: $(Q)./tools/gen-offsets.sh $< $@
124:
125:
1.1.1.5 root 126: $(OUT)ccode.16.s: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS16) -S, $(addprefix src/, $(SRC16)),$@)
1.1 root 127:
1.1.1.5 root 128: $(OUT)code32seg.o: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS32SEG), $(addprefix src/, $(SRC32SEG)),$@)
1.1.1.2 root 129:
1.1.1.5 root 130: $(OUT)ccode32flat.o: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS32FLAT), $(addprefix src/, $(SRC32FLAT)),$@)
1.1 root 131:
132: $(OUT)code16.o: romlayout.S $(OUT)ccode.16.s $(OUT)asm-offsets.h
133: @echo " Compiling (16bit) $@"
134: $(Q)$(CC) $(CFLAGS16INC) -c -D__ASSEMBLY__ $< -o $@
135:
1.1.1.5 root 136: $(OUT)romlayout16.lds: $(OUT)ccode32flat.o $(OUT)code32seg.o $(OUT)code16.o tools/layoutrom.py
1.1 root 137: @echo " Building ld scripts (version \"$(VERSION)\")"
138: $(Q)echo 'const char VERSION[] = "$(VERSION)";' > $(OUT)version.c
1.1.1.2 root 139: $(Q)$(CC) $(CFLAGS32FLAT) -c $(OUT)version.c -o $(OUT)version.o
140: $(Q)$(LD) -melf_i386 -r $(OUT)ccode32flat.o $(OUT)version.o -o $(OUT)code32flat.o
141: $(Q)$(OBJDUMP) -thr $(OUT)code32flat.o > $(OUT)code32flat.o.objdump
142: $(Q)$(OBJDUMP) -thr $(OUT)code32seg.o > $(OUT)code32seg.o.objdump
1.1 root 143: $(Q)$(OBJDUMP) -thr $(OUT)code16.o > $(OUT)code16.o.objdump
1.1.1.2 root 144: $(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 145:
1.1.1.5 root 146: # These are actually built by tools/layoutrom.py above, but by pulling them
147: # into an extra rule we prevent make -j from spawning layoutrom.py 4 times.
148: $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds $(OUT)code32flat.o: $(OUT)romlayout16.lds
1.1 root 149:
1.1.1.3 root 150: $(OUT)rom16.o: $(OUT)code16.o $(OUT)romlayout16.lds
151: @echo " Linking $@"
152: $(Q)$(LD) -T $(OUT)romlayout16.lds $< -o $@
1.1 root 153:
1.1.1.2 root 154: $(OUT)rom32seg.o: $(OUT)code32seg.o $(OUT)romlayout32seg.lds
1.1.1.3 root 155: @echo " Linking $@"
156: $(Q)$(LD) -T $(OUT)romlayout32seg.lds $< -o $@
1.1 root 157:
1.1.1.3 root 158: $(OUT)rom.o: $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o $(OUT)romlayout32flat.lds
1.1 root 159: @echo " Linking $@"
1.1.1.3 root 160: $(Q)$(LD) -T $(OUT)romlayout32flat.lds $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o -o $@
1.1 root 161:
162: $(OUT)bios.bin.elf $(OUT)bios.bin: $(OUT)rom.o tools/checkrom.py
163: @echo " Prepping $@"
164: $(Q)$(OBJDUMP) -thr $< > $<.objdump
165: $(Q)$(OBJCOPY) -O binary $< $(OUT)bios.bin.raw
166: $(Q)./tools/checkrom.py $<.objdump $(OUT)bios.bin.raw $(OUT)bios.bin
167: $(Q)$(STRIP) -R .comment $< -o $(OUT)bios.bin.elf
168:
169:
170: ################ VGA build rules
171:
172: # VGA src files
173: SRCVGA=src/output.c src/util.c vgasrc/vga.c vgasrc/vgafb.c vgasrc/vgaio.c \
174: vgasrc/vgatables.c vgasrc/vgafonts.c vgasrc/clext.c
175:
1.1.1.5 root 176: $(OUT)vgaccode.16.s: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS16) -S -Isrc, $(SRCVGA),$@)
1.1 root 177:
178: $(OUT)vgalayout16.o: vgaentry.S $(OUT)vgaccode.16.s $(OUT)asm-offsets.h
179: @echo " Compiling (16bit) $@"
180: $(Q)$(CC) $(CFLAGS16INC) -c -D__ASSEMBLY__ -Isrc $< -o $@
181:
182: $(OUT)vgarom.o: $(OUT)vgalayout16.o $(OUT)vgalayout.lds
183: @echo " Linking $@"
184: $(Q)$(LD) --gc-sections -T $(OUT)vgalayout.lds $(OUT)vgalayout16.o -o $@
185:
186: $(OUT)vgabios.bin.raw: $(OUT)vgarom.o
187: @echo " Extracting binary $@"
188: $(Q)$(OBJCOPY) -O binary $< $@
189:
190: $(OUT)vgabios.bin: $(OUT)vgabios.bin.raw tools/buildrom.py
191: @echo " Finalizing rom $@"
192: $(Q)./tools/buildrom.py $< $@
193:
194: ####### dsdt build rules
1.1.1.3 root 195: src/%.hex: src/%.dsl
1.1 root 196: @echo "Compiling DSDT"
1.1.1.3 root 197: $(Q)cpp -P $< > $(OUT)$*.dsl.i
198: $(Q)iasl -tc -p $(OUT)$* $(OUT)$*.dsl.i
199: $(Q)cp $(OUT)$*.hex $@
200:
201: $(OUT)ccode32flat.o: src/acpi-dsdt.hex
1.1 root 202:
1.1.1.5 root 203: ####### Kconfig rules
204: export HOSTCC := $(CC)
205: export CONFIG_SHELL := sh
206: export KCONFIG_AUTOHEADER := autoconf.h
207: export KCONFIG_CONFIG := $(CURDIR)/.config
208:
209: $(OUT)autoconf.h : $(KCONFIG_CONFIG)
210: $(Q)$(MAKE) silentoldconfig
211:
212: $(KCONFIG_CONFIG):
213: $(Q)$(MAKE) defconfig
214:
215: %onfig:
216: $(Q)mkdir -p $(OUT)/tools/kconfig/lxdialog
217: $(Q)mkdir -p $(OUT)/include/config
218: $(Q)$(MAKE) -C $(OUT) -f $(CURDIR)/tools/kconfig/Makefile srctree=$(CURDIR) src=tools/kconfig obj=tools/kconfig Q=$(Q) Kconfig=$(CURDIR)/src/Kconfig $@
219:
1.1 root 220: ####### Generic rules
221: clean:
222: $(Q)rm -rf $(OUT)
223:
1.1.1.5 root 224: distclean: clean
225: $(Q)rm -f .config .config.old
226:
1.1 root 227: $(OUT):
228: $(Q)mkdir $@
229:
230: -include $(OUT)*.d
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