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increasing the support of cross compiling

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This commit is contained in:
Stefan Lankes 2011-03-18 05:17:56 +01:00
parent 604670c981
commit 6bdff29b11
4 changed files with 43 additions and 54 deletions
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59
Makefile.example
View file

@ -6,22 +6,30 @@ LWIPDIRS = lwip/src/api lwip/src/core lwip/src/core/ipv4 lwip/src/netif
DRIVERDIRS = drivers/net drivers/char
KERNDIRS = libkern kernel mm fs arch/$(ARCH)/kernel arch/$(ARCH)/mm $(LWIPDIRS) $(DRIVERDIRS)
SUBDIRS = $(KERNDIRS)
#OBJS = $(shell for i in $(KERNDIRS); do find $$i -name *.o; done)
OBJCOPY = objcopy
STRIP_DEBUG = --strip-debug
KEEP_DEBUG = --only-keep-debug
CC_FOR_TARGET=gcc
CXX_FOR_TARGET=g++
GCC_FOR_TARGET=gcc
AR_FOR_TARGET=ar
AS_FOR_TARGET=as
LD_FOR_TARGET=ld
NM_FOR_TARGET=nm
OBJDUMP_FOR_TARGET=objdump
OBJCOPY_FOR_TARGET=objcopy
RANLIB_FOR_TARGET=ranlib
STRIP_FOR_TARGET=strip
READELF_FOR_TARGET=readelf
NASM = nasm
MAKE = make
NASM = nasm
NASMFLAGS = -felf32 -g
INCLUDE = -I$(TOPDIR)/include -I$(TOPDIR)/arch/$(ARCH)/include -I$(TOPDIR)/lwip/src/include -I$(TOPDIR)/lwip/src/include/ipv4 -I$(TOPDIR)/drivers
CC = gcc
CFLAGS = -g -m32 -march=i586 -Wall -O2 -fno-zero-initialized-in-bss -fno-builtin -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc $(INCLUDE) -fno-stack-protector
AR = ar
ARFLAGS = rsv
RM = rm -rf
LD = ld
LDFLAGS = -T link.ld -z max-page-size=4096 --defsym __BUILD_DATE=$(shell date +'%Y%m%d') --defsym __BUILD_TIME=$(shell date +'%H%M%S')
STRIP_DEBUG = --strip-debug
KEEP_DEBUG = --only-keep-debug
# Prettify output
V = 0
@ -34,31 +42,32 @@ default: all
all: newlib tools $(NAME)
#all:
# for i in $(SUBDIRS); do $(MAKE) -C $$i all; done
# $(MAKE) link
#link:
# $(LD) $(LDFLAGS) -o $(NAME) $(OBJS)
# $(OBJCOPY) $(KEEP_DEBUG) $(NAME) $(SYM_NAME)
# $(OBJCOPY) $(STRIP_DEBUG) $(NAME)
newlib:
$(MAKE) ARCH=$(ARCH) LDFLAGS="-m32" CFLAGS="-m32 -O2 -march=i586 -fno-stack-protector" NASMFLAGS="-felf32 -g" -C newlib
$(MAKE) ARCH=$(ARCH) LDFLAGS="-m32" CFLAGS="-m32 -O2 -march=i586 -fno-stack-protector" NASMFLAGS="$(NASMFLAGS)" CC_FOR_TARGET=$(CC_FOR_TARGET) \
CXX_FOR_TARGET=$(CXX_FOR_TARGET) \
GCC_FOR_TARGET=$(GCC_FOR_TARGET) \
AR_FOR_TARGET=$(AR_FOR_TARGET) \
AS_FOR_TARGET=$(AS_FOR_TARGET) \
LD_FOR_TARGET=$(LD_FOR_TARGET) \
NM_FOR_TARGET=$(NM_FOR_TARGET) \
OBJDUMP_FOR_TARGET=$(OBJDUMP_FOR_TARGET) \
OBJCOPY_FOR_TARGET=$(OBJCOPY_FOR_TARGET) \
RANLIB_FOR_TARGET=$(RANLIB_FOR_TARGET) \
STRIP_FOR_TARGET=$(STRIP_FOR_TARGET) \
READELF_FOR_TARGET=$(READELF_FOR_TARGET) -C newlib
tools:
$(MAKE) -C tools
$(NAME):
$Q$(LD) $(LDFLAGS) -o $(NAME) $^
$Q$(LD_FOR_TARGET) $(LDFLAGS) -o $(NAME) $^
@echo [OBJCOPY] $(SYM_NAME)
$Q$(OBJCOPY) $(KEEP_DEBUG) $(NAME) $(SYM_NAME)
$Q$(OBJCOPY_FOR_TARGET) $(KEEP_DEBUG) $(NAME) $(SYM_NAME)
@echo [OBJCOPY] $(NAME)
$Q$(OBJCOPY) $(STRIP_DEBUG) $(NAME)
$Q$(OBJCOPY_FOR_TARGET) $(STRIP_DEBUG) $(NAME)
qemu: newlib tools $(NAME)
qemu -no-kvm -smp 2 -net nic,model=rtl8139 -net user,hostfwd=tcp::12345-:7 -net dump -kernel metalsvm.bin -initrd tools/initrd.img
qemu -cpu pentium -smp 2 -net nic,model=rtl8139 -net user,hostfwd=tcp::12345-:7 -net dump -kernel metalsvm.bin -initrd tools/initrd.img
clean:
$Q$(RM) $(NAME) $(SYM_NAME) *~
@ -74,9 +83,9 @@ veryclean: clean
%.o : %.c
@echo [CC] $@
$Q$(CC) -c -D__KERNEL__ $(CFLAGS) -o $@ $<
$Q$(CC_FOR_TARGET) -c -D__KERNEL__ $(CFLAGS) -o $@ $<
@echo [DEP] $*.dep
$Q$(CC) -MF $*.dep -MT $*.o -MM $(CFLAGS) $<
$Q$(CC_FOR_TARGET) -MF $*.dep -MT $*.o -MM $(CFLAGS) $<
%.o : %.asm

16
newlib/Makefile
View file

@ -15,22 +15,6 @@ MKDIR = mkdir
TMP = $(TOPDIR)/tmp
OPT = --disable-shared --disable-multilib --enable-newlib-hw-fp
export CC_FOR_TARGET=gcc
export CXX_FOR_TARGET=g++
export GCC_FOR_TARGET=gcc
export AR_FOR_TARGET=ar
export AS_FOR_TARGET=as
export LD_FOR_TARGET=ld
export NM_FOR_TARGET=nm
export OBJDUMP_FOR_TARGET=objdump
export RANLIB_FOR_TARGET=ranlib
export STRIP_FOR_TARGET=strip
export READELF_FOR_TARGET=readelf
export CFLAGS
export CXXFLAGS=$(CFLAGS)
export CPPFLAGS=$(CFLAGS)
export NASMFLAGS
default: $(ARCH)
$(MAKE) -C examples depend
$(MAKE) CFLAGS+="-nostdinc -Wall -fno-builtin -I$(NEWLIB)/include -I../../include -I../../arch/$(ARCH)/include" LDFLAGS+="-nostdlib -L$(NEWLIB)/lib" -C examples

20
newlib/examples/Makefile
View file

@ -1,38 +1,34 @@
ARCH = x86
NEWLIB = ../x86/i586-metalsvm-elf32
MAKE = make
CC = gcc
CFLAGS = -g -m32 -O2 -nostdinc -Wall -fno-builtin -I$(NEWLIB)/include -I../../include -I../../arch/$(ARCH)/include -fno-stack-protector
LDFLAGS = -m32 -nostdlib -L$(NEWLIB)/lib
OBJCOPY = objcopy
STRIP_DEBUG = --strip-debug
KEEP_DEBUG = --only-keep-debug
# other implicit rules
%.o : %.c
$(CC) -c $(CFLAGS) -o $@ $<
$(CC_FOR_TARGET) -c $(CFLAGS) -o $@ $<
default: all
all: hello tests
tests: tests.o
$(CC) -T link.ld -o $@ $(LDFLAGS) $<
$(OBJCOPY) $(KEEP_DEBUG) $@ $@.sym
$(OBJCOPY) $(STRIP_DEBUG) $@
$(CC_FOR_TARGET) -T link.ld -o $@ $(LDFLAGS) $<
$(OBJCOPY_FOR_TARGET) $(KEEP_DEBUG) $@ $@.sym
$(OBJCOPY_FOR_TARGET) $(STRIP_DEBUG) $@
chmod a-x $@.sym
hello: hello.o
$(CC) -T link.ld -o $@ $(LDFLAGS) $<
$(OBJCOPY) $(KEEP_DEBUG) $@ $@.sym
$(OBJCOPY) $(STRIP_DEBUG) $@
$(CC_FOR_TARGET) -T link.ld -o $@ $(LDFLAGS) $<
$(OBJCOPY_FOR_TARGET) $(KEEP_DEBUG) $@ $@.sym
$(OBJCOPY_FOR_TARGET) $(STRIP_DEBUG) $@
chmod a-x $@.sym
clean:
$(RM) hello tests *.sym *.o *~
depend:
$(CC) -MM $(CFLAGS) *.c > Makefile.dep
$(CC_FOR_TARGET) -MM $(CFLAGS) *.c > Makefile.dep
-include Makefile.dep
# DO NOT DELETE

2
tools/Makefile
View file

@ -6,7 +6,7 @@ LDFLGAS =
DEFINES=
NASM = nasm
NASMFLAGS = -fbin
EXECFILES = $(shell find ../newlib/examples -executable -type f)
EXECFILES = $(shell find ../newlib/examples -perm -o+r+x -type f)
# other implicit rules
%.o : %.c