47 lines
1.0 KiB
Makefile
47 lines
1.0 KiB
Makefile
# This is a bit bothersome design, but it should serve well enough as a simple
|
|
# cross-compiler for the Sortix operating system.
|
|
|
|
ifndef CPU
|
|
CPU=x86
|
|
endif
|
|
|
|
ifeq ($(CPU),x86)
|
|
X86FAMILY=1
|
|
CPUDEFINES=-DPLATFORM_X86
|
|
CPUFLAGS=-m32
|
|
CPULDFLAGS=-melf_i386
|
|
endif
|
|
|
|
ifeq ($(CPU),x64)
|
|
X86FAMILY=1
|
|
CPUDEFINES=-DPLATFORM_X64
|
|
CPUFLAGS=-m64
|
|
CPULDFLAGS=-melf_x86_64
|
|
endif
|
|
|
|
LIBMAXSIROOT=../libmaxsi
|
|
|
|
INCLUDES=-I $(LIBMAXSIROOT)/c/h/ -I ../
|
|
CPPFLAGS=$(CPUDEFINES)
|
|
|
|
LD=ld
|
|
LDFLAGS=$(CPULDFLAGS) -Ttext 400000 $(LIBMAXSIROOT)/start.o
|
|
CC=gcc
|
|
CFLAGS=$(CPUFLAGS) -nostdinc -nostdlib -fno-builtin -nostartfiles -nodefaultlibs -fno-stack-protector $(INCLUDES)
|
|
CXX=g++
|
|
CXXFLAGS=$(CPUFLAGS) -nostdinc -nostdlib -fno-builtin -nostartfiles -nodefaultlibs -fno-exceptions -fno-rtti -fno-stack-protector $(INCLUDES)
|
|
LIBC=$(LIBMAXSIROOT)/libc.a
|
|
|
|
all: hello
|
|
|
|
hello: hello.o
|
|
$(LD) $(LDFLAGS) hello.o -o hello.tmp $(LIBC)
|
|
objcopy -O binary hello.tmp hello
|
|
|
|
hello.o: hello.c
|
|
$(CC) $(CPPFLAGS) $(CFLAGS) -O2 -c hello.c -o hello.o
|
|
|
|
clean:
|
|
rm -f hello.tmp hello.o hello
|
|
|