#
# Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
#
-# This file may be distributed under the terms of the GNU GPLv3 license.
+# This file may be distributed under the terms of the GNU LGPLv3 license.
# Output directory
OUT=out/
# Source files
-SRCBOTH=output.c util.c floppy.c ata.c system.c mouse.c kbd.c pci.c \
+SRCBOTH=output.c util.c floppy.c ata.c misc.c mouse.c kbd.c pci.c \
serial.c clock.c pic.c cdrom.c ps2port.c smpdetect.c resume.c \
pnpbios.c pirtable.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 \
+SRC16=$(SRCBOTH) system.c disk.c apm.c pcibios.c vgahooks.c font.c
+SRC32=$(SRCBOTH) post.c shadow.c memmap.c coreboot.c boot.c \
acpi.c smm.c mptable.c smbios.c pciinit.c optionroms.c mtrr.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=3 \
- -mpreferred-stack-boundary=2 -mrtd \
+ -mpreferred-stack-boundary=2 -mrtd -freg-struct-return \
-ffreestanding -fwhole-program -fomit-frame-pointer \
-fno-delete-null-pointer-checks -Wno-strict-aliasing
COMMONCFLAGS += $(call cc-option,$(CC),-nopie,)
override CFLAGS = $(COMMONCFLAGS) -g -DMODE16=0
CFLAGS16INC = $(COMMONCFLAGS) -DMODE16=1 -fno-jump-tables -fno-defer-pop \
$(call cc-option,$(CC),--param large-stack-frame=4,)
+CFLAGS16INC += -ffunction-sections -fdata-sections
CFLAGS16 = $(CFLAGS16INC) -g
-TABLETMP=$(addprefix $(OUT), $(patsubst %.c,%.16.s,$(TABLESRC)))
-all: $(OUT) $(OUT)bios.bin $(TABLETMP)
+all: $(OUT) $(OUT)bios.bin
# Run with "make V=1" to see the actual compile commands
ifdef V
endif
OBJCOPY=objcopy
+OBJDUMP=objdump
NM=nm
STRIP=strip
################ Build rules
+TESTGCC:=$(shell CC=$(CC) tools/test-gcc.sh)
+ifeq "$(TESTGCC)" "-1"
+$(error "Please upgrade GCC")
+endif
+
+ifndef AVOIDCOMBINE
+AVOIDCOMBINE=$(TESTGCC)
+endif
+
# 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=
+ifeq "$(AVOIDCOMBINE)" "1"
define whole-compile
@echo " Compiling whole program $3"
$(Q)printf '$(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 $3
endif
-$(OUT)%.proc.16.s: $(OUT)%.16.s
- @echo " Moving data sections to text in $@"
- $(Q)sed 's/^\t\.section\t\.\(ro\)\?data.*// ; s/^\t\.data$$//' < $< > $@
-
-$(OUT)%.16.s: %.c
+$(OUT)%.s: %.c
@echo " Compiling to assembler $@"
- $(Q)$(CC) $(CFLAGS16INC) $(DEPHACK) -S -c $< -o $@
+ $(Q)$(CC) $(CFLAGS16INC) -S -c $< -o $@
$(OUT)%.lds: %.lds.S
@echo " Precompiling $@"
$(Q)$(CPP) -P -D__ASSEMBLY__ $< -o $@
-$(OUT)asm-offsets.h: $(OUT)asm-offsets.16.s
+$(OUT)asm-offsets.h: $(OUT)asm-offsets.s
@echo " Generating offset file $@"
$(Q)./tools/gen-offsets.sh $< $@
$(OUT)ccode.16.s: ; $(call whole-compile, $(CFLAGS16) -S, $(addprefix src/, $(SRC16)),$@)
-TABLEASM=$(addprefix $(OUT), $(patsubst %.c,%.proc.16.s,$(TABLESRC)))
-$(OUT)romlayout16.o: romlayout.S $(OUT)ccode.16.s $(OUT)asm-offsets.h $(TABLEASM)
+$(OUT)romlayout16.o: romlayout.S $(OUT)ccode.16.s $(OUT)asm-offsets.h
@echo " Compiling (16bit) $@"
$(Q)$(CC) $(CFLAGS16INC) -c -D__ASSEMBLY__ $< -o $@
$(OUT)rom32.o: $(OUT)ccode32.o $(OUT)rombios32.lds
@echo " Linking (no relocs) $@"
- $(Q)$(LD) -r -d -T $(OUT)rombios32.lds $< -o $@
+ $(Q)$(LD) -r -T $(OUT)rombios32.lds $< -o $@
+
+$(OUT)romlayout.lds: $(OUT)romlayout16.o
+ @echo " Building layout information $@"
+ $(Q)$(OBJDUMP) -h $< | ./tools/layoutrom.py $@
+
+$(OUT)rombios16.lds: $(OUT)romlayout.lds
$(OUT)rom16.o: $(OUT)romlayout16.o $(OUT)rom32.o $(OUT)rombios16.lds
@echo " Linking (16bit) $@"
projects / seabios.git / blobdiff