Mark
84 lines
1.8 KiB
Makefile
84 lines
1.8 KiB
Makefile
# Input parameters:
|
|
# O -- build files
|
|
# STAGE -- initrd rootfs
|
|
|
|
DIRS=$(O) \
|
|
$(O)/libc
|
|
HDRS=$(shell find $(S) -type f -name "*.h")
|
|
STAGE_BIN=$(STAGE)/init \
|
|
$(STAGE)/hello
|
|
|
|
CFLAGS=-ffreestanding \
|
|
-nostdlib \
|
|
-mno-sse \
|
|
-mno-sse2 \
|
|
-Ilibc/include \
|
|
-ggdb \
|
|
-O0 \
|
|
-I$(S)/include
|
|
|
|
usr_LDFLAGS=-nostdlib \
|
|
-lgcc \
|
|
-Tlibc/program.ld
|
|
usr_STATIC_LIBS=$(O)/libc.a
|
|
|
|
libc_CRTI=$(O)/libc/crti.o
|
|
libc_CRTN=$(O)/libc/crtn.o
|
|
libc_OBJS=$(O)/libc/crt0.o \
|
|
$(O)/libc/syscall.o \
|
|
$(O)/libc/vsnprintf.o \
|
|
$(O)/libc/printf.o \
|
|
$(O)/libc/string.o \
|
|
$(O)/libc/errno.o \
|
|
$(O)/libc/stdio.o \
|
|
$(O)/libc/init.o \
|
|
$(O)/libc/malloc.o \
|
|
$(O)/libc/dirent.o \
|
|
$(O)/libc/signal.o \
|
|
$(O)/libc/global.o
|
|
|
|
sys_CRTBEGIN=$(shell $(CC) $(CFLAGS) -print-file-name=crtbegin.o)
|
|
sys_CRTEND=$(shell $(CC) $(CFLAGS) -print-file-name=crtend.o)
|
|
|
|
all: mkdirs mkstage-etc $(STAGE_BIN)
|
|
|
|
mkdirs:
|
|
mkdir -p $(DIRS)
|
|
|
|
mkstage-etc:
|
|
cp -r etc $(STAGE)
|
|
|
|
# Application building
|
|
$(STAGE)/init: init.c $(libc_CRTI) $(libc_CRTN) $(O)/libc.a
|
|
@printf " CC\t%s\n" $(@:$(STAGE)/%=/%)
|
|
@$(CC) -o $@ $(CFLAGS) $(usr_LDFLAGS) \
|
|
$(libc_CRTI) \
|
|
$(sys_CRTBEGIN) \
|
|
init.c \
|
|
$(sys_CRTEND) \
|
|
$(libc_CRTN) \
|
|
$(usr_STATIC_LIBS)
|
|
|
|
$(STAGE)/hello: hello.c $(libc_CRTI) $(libc_CRTN) $(O)/libc.a
|
|
@printf " CC\t%s\n" $(@:$(STAGE)/%=/%)
|
|
@$(CC) -o $@ $(CFLAGS) $(usr_LDFLAGS) \
|
|
$(libc_CRTI) \
|
|
$(sys_CRTBEGIN) \
|
|
hello.c \
|
|
$(sys_CRTEND) \
|
|
$(libc_CRTN) \
|
|
$(usr_STATIC_LIBS)
|
|
|
|
# libc building
|
|
$(O)/libc.a: $(libc_OBJS)
|
|
@printf " AR\t%s\n" $(@:$(O)/%=%)
|
|
@$(AR) rcs $@ $(libc_OBJS)
|
|
|
|
$(O)/libc/%.o: libc/%.c $(HDRS)
|
|
@printf " CC\t%s\n" $(@:$(O)/%=%)
|
|
@$(CC) -c -o $@ $(CFLAGS) $<
|
|
|
|
$(O)/libc/%.o: libc/%.S
|
|
@printf " AS\t%s\n" $(@:$(O)/%=%)
|
|
@$(CC) -c -o $@ $(CFLAGS) $<
|