Mark
48 lines
848 B
Makefile
48 lines
848 B
Makefile
.PHONY: libc
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# Input parameters:
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# O -- build files
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# STAGE -- initrd rootfs
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DIRS=$(O)
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STAGE_BIN=$(STAGE)/init
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usr_CFLAGS=-ffreestanding \
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-nostdlib \
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-mno-sse \
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-mno-sse2 \
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-Ilibc/include \
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-O0 \
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-I$(S)/include
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usr_LDFLAGS=-nostdlib \
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-lgcc \
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-Tlibc/program.ld
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usr_STATIC_LIBS=$(O)/libc.a
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usr_CRTI=$(O)/libc/crti.o
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usr_CRTN=$(O)/libc/crtn.o
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usr_CRT0=$(O)/libc/crt0.o
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sys_CRTBEGIN=$(shell $(CC) $(CFLAGS) -print-file-name=crtbegin.o)
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sys_CRTEND=$(shell $(CC) $(CFLAGS) -print-file-name=crtend.o)
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all: mkdirs libc mkstage-etc $(STAGE_BIN)
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$(STAGE)/init: init.c
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$(CC) -o $@ $(usr_CFLAGS) $(usr_LDFLAGS) \
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$(usr_CRTI) \
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$(sys_CRTBEGIN) \
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$(usr_CRT0) \
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$< \
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$(sys_CRTEND) \
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$(usr_CRTN) \
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$(usr_STATIC_LIBS)
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libc:
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@make -sC libc all
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mkdirs:
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mkdir -p $(DIRS)
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mkstage-etc:
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cp -r etc $(STAGE)
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