OUT=out/
# Source files
-SRC16=floppy.c disk.c system.c clock.c serial.c kbd.c mouse.c output.c boot.c
-SRC32=post.c output.c
+SRCBOTH=output.c util.c floppy.c ata.c system.c mouse.c kbd.c pci.c \
+ serial.c clock.c pic.c cdrom.c ps2port.c
+SRC16=$(SRCBOTH) disk.c apm.c pcibios.c vgahooks.c
+SRC32=$(SRCBOTH) post.c shadow.c post_menu.c memmap.c coreboot.c boot.c \
+ acpi.c pirtable.c smm.c smpdetect.c mptable.c smbios.c pciinit.c
+TABLESRC=font.c cbt.c floppy_dbt.c
cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc \
/dev/null 2>&1`"; then echo "$(2)"; else echo "$(3)"; fi ;)
# Default compiler flags
-COMMONCFLAGS = -Wall -Os -MD -m32 -march=i386 -mregparm=2 -ffreestanding
+COMMONCFLAGS = -Wall -Os -MD -m32 -march=i386 -mregparm=3 \
+ -mpreferred-stack-boundary=2 -mrtd \
+ -ffreestanding -fwhole-program -fomit-frame-pointer \
+ -fno-delete-null-pointer-checks
COMMONCFLAGS += $(call cc-option,$(CC),-nopie,)
COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector,)
COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,)
-CFLAGS = $(COMMONCFLAGS) -g
-CFLAGS16 = $(COMMONCFLAGS) -DMODE16 -fno-jump-tables
+override CFLAGS = $(COMMONCFLAGS) -g -DMODE16=0
+CFLAGS16INC = $(COMMONCFLAGS) -DMODE16=1 -fno-jump-tables -fno-defer-pop \
+ $(call cc-option,$(CC),--param large-stack-frame=8,)
+CFLAGS16 = $(CFLAGS16INC) -g
-all: $(OUT) $(OUT)rom.bin
+TABLETMP=$(addprefix $(OUT), $(patsubst %.c,%.16.s,$(TABLESRC)))
+all: $(OUT) $(OUT)bios.bin $(TABLETMP)
# Run with "make V=1" to see the actual compile commands
ifdef V
vpath %.S src
################ Build rules
+
+# Do a whole file compile - two methods are supported. The first
+# involves including all the content textually via #include
+# directives. The second method uses gcc's "-combine" option.
+ifdef AVOIDCOMBINE
+DEPHACK=
+define whole-compile
+@echo " Compiling whole program $3"
+$(Q)/bin/echo -e '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
+$(Q)$(CC) $1 -c $3.tmp.c -o $3
+endef
+else
+# Ugly way to get gcc to generate .d files correctly.
+DEPHACK=-combine src/null.c
+define whole-compile
+@echo " Compiling whole program $3"
+$(Q)$(CC) $1 -combine -c $2 -o $3
+endef
+endif
+
+
$(OUT)%.proc.16.s: $(OUT)%.16.s
@echo " Moving data sections to text in $<"
- $(Q)sed 's/\t.section\t.rodata.*// ; s/\t.data//' < $< > $@
+ $(Q)sed 's/\t\.section\t\.rodata.*// ; s/\t\.data//' < $< > $@
$(OUT)%.16.s: %.c
@echo " Generating assembler for $<"
- $(Q)$(CC) $(CFLAGS16) -fwhole-program -S -combine -c $< src/null.c -o $@
+ $(Q)$(CC) $(CFLAGS16INC) $(DEPHACK) -S -c $< -o $@
$(OUT)%.lds: %.lds.S
@echo " Precompiling $<"
$(Q)$(CPP) -P $< -o $@
-$(OUT)%.bin: $(OUT)%.o
- @echo " Extracting binary $@"
- $(Q)objcopy -O binary $< $@
-$(OUT)%.offset.auto.h: $(OUT)%.o
- @echo " Generating symbol offset header $@"
- $(Q)nm $< | ./tools/defsyms.py > $@
+$(OUT)blob.16.s: ; $(call whole-compile, $(CFLAGS16) -S, $(addprefix src/, $(SRC16)),$@)
-$(OUT)blob.16.s:
- @echo " Generating whole program assembler $@"
- $(Q)$(CC) $(CFLAGS16) -fwhole-program -S -combine -c $(addprefix src/, $(SRC16)) -o $@
-
-$(OUT)romlayout16.o: romlayout.S $(OUT)blob.proc.16.s $(OUT)font.proc.16.s $(OUT)cbt.proc.16.s
+TABLEASM=$(addprefix $(OUT), $(patsubst %.c,%.proc.16.s,$(TABLESRC)))
+$(OUT)romlayout16.o: romlayout.S $(OUT)blob.16.s $(TABLEASM)
@echo " Generating 16bit layout of $@"
$(Q)$(CC) $(CFLAGS16) -c $< -o $@
-$(OUT)rom16.o: $(OUT)romlayout16.o
- @echo " Linking $@"
- $(Q)ld -melf_i386 -e post16 -Ttext 0 $< -o $@
+$(OUT)romlayout32.o: ; $(call whole-compile, $(CFLAGS), $(addprefix src/, $(SRC32)),$@)
-$(OUT)rom16.bin: $(OUT)rom16.o
- @echo " Extracting binary $@"
- $(Q)objcopy -O binary $< $@
+$(OUT)rom32.o: $(OUT)romlayout32.o $(OUT)rombios32.lds
+ @echo " Linking (no relocs) $@"
+ $(Q)ld -r -T $(OUT)rombios32.lds $< -o $@
-$(OUT)romlayout32.o: $(OUT)rom16.offset.auto.h
- @echo " Compiling whole program $@"
- $(Q)$(CC) $(CFLAGS) -fwhole-program -combine -c $(addprefix src/, $(SRC32)) -o $@
+$(OUT)rom16.o: $(OUT)romlayout16.o $(OUT)rom32.o $(OUT)rombios16.lds
+ @echo " Linking $@"
+ $(Q)objcopy --prefix-symbols=_code32_ $(OUT)rom32.o $(OUT)rom32.rename.o
+ $(Q)ld -T $(OUT)rombios16.lds -R $(OUT)rom32.rename.o $< -o $@
-$(OUT)rom32.o: $(OUT)romlayout32.o $(OUT)rombios32.lds
+$(OUT)rom.o: $(OUT)rom16.o $(OUT)rom32.o $(OUT)rombios.lds
@echo " Linking $@"
- $(Q)ld -T $(OUT)rombios32.lds $< -o $@
+ $(Q)ld -T $(OUT)rombios.lds $(OUT)rom16.o $(OUT)rom32.o -o $@
+
+$(OUT)bios.bin.elf: $(OUT)rom.o
+ @echo " Prepping $@"
+ $(Q)nm $< | ./tools/checkrom.py
+ $(Q)strip $< -o $@
+
+$(OUT)bios.bin: $(OUT)bios.bin.elf
+ @echo " Extracting binary $@"
+ $(Q)objcopy -O binary $< $@
-$(OUT)rom.bin: $(OUT)rom16.bin $(OUT)rom32.bin $(OUT)rom16.offset.auto.h $(OUT)rom32.offset.auto.h
- @echo " Building $@"
- $(Q)./tools/buildrom.py
####### Generic rules
clean:
projects / seabios.git / blobdiff