53 lines
1.5 KiB
Makefile
53 lines
1.5 KiB
Makefile
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# -*- makefile -*-
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$(PROGS): CPPFLAGS += -I$(SRCDIR)/lib/user -I.
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# Linker flags.
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$(PROGS): LDFLAGS += -nostdlib -static -Wl,-T,$(LDSCRIPT)
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$(PROGS): LDSCRIPT = $(SRCDIR)/lib/user/user.lds
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# Library code shared between kernel and user programs.
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lib_SRC = lib/debug.c # Debug code.
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lib_SRC += lib/random.c # Pseudo-random numbers.
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lib_SRC += lib/stdio.c # I/O library.
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lib_SRC += lib/stdlib.c # Utility functions.
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lib_SRC += lib/string.c # String functions.
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lib_SRC += lib/arithmetic.c # 64-bit arithmetic for GCC.
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lib_SRC += lib/ustar.c # Unix standard tar format utilities.
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# User level only library code.
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lib/user_SRC = lib/user/debug.c # Debug helpers.
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lib/user_SRC += lib/user/syscall.c # System calls.
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lib/user_SRC += lib/user/console.c # Console code.
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LIB_OBJ = $(patsubst %.c,%.o,$(patsubst %.S,%.o,$(lib_SRC) $(lib/user_SRC)))
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LIB_DEP = $(patsubst %.o,%.d,$(LIB_OBJ))
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LIB = lib/user/entry.o libc.a
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PROGS_SRC = $(foreach prog,$(PROGS),$($(prog)_SRC))
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PROGS_OBJ = $(patsubst %.c,%.o,$(patsubst %.S,%.o,$(PROGS_SRC)))
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PROGS_DEP = $(patsubst %.o,%.d,$(PROGS_OBJ))
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all: $(PROGS)
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define TEMPLATE
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$(1)_OBJ = $(patsubst %.c,%.o,$(patsubst %.S,%.o,$($(1)_SRC)))
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$(1): $$($(1)_OBJ) $$(LIB) $$(LDSCRIPT)
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$$(CC) $$(LDFLAGS) $$($(1)_OBJ) $$(LIB) -o $$@
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endef
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$(foreach prog,$(PROGS),$(eval $(call TEMPLATE,$(prog))))
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libc.a: $(LIB_OBJ)
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rm -f $@
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$(AR) -r $@ $^
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$(RANLIB) $@
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clean::
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rm -f $(PROGS) $(PROGS_OBJ) $(PROGS_DEP)
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rm -f $(LIB_DEP) $(LIB_OBJ) lib/user/entry.[do] libc.a
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.PHONY: all clean
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-include $(LIB_DEP) $(PROGS_DEP)
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