50 lines
1.4 KiB
Makefile
50 lines
1.4 KiB
Makefile
NASM=nasm
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LD=ld
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COMPILE_64=elf64
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# LD often has several different linking modes. This sets the mode
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# explicitly, but if you're running on 64-bit Linux LD will use this
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# mode by default and the '-m' argument is unnecessary.
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LINK_64=elf_x86_64
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default: help
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PROGRAMS=hello strlen subroutines includes argv
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all: $(PROGRAMS) ## Build everything at once
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%.o: %.s functions.asm
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$(NASM) -f $(COMPILE_64) $<
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# Lesson 1 was skipped because it was just Lesson 2 without a proper
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# exit handler... and who does that?
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hello: hello.o ## Build Lesson 2: Print string with known length, exit cleanly
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$(LD) -m $(LINK_64) -o $@ $<
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strlen: strlen.o ## Build Lesson 3: Determine length programmatically
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$(LD) -m $(LINK_64) -o $@ $<
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subroutines: subroutines.o ## Build Lesson 4: Separate strlen() and puts() into subroutine.
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$(LD) -m $(LINK_64) -o $@ $<
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includes: includes.o ## Build Lesson 5: Separate strlen() and puts() into their own files.
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$(LD) -m $(LINK_64) -o $@ $<
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# Lesson 6 is wrapped in Lesson 7: using null-terminated strings, but
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# lesson 7 then adds a line feed, so the jump isn't too big.
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argv: argv.o ## Build Lesson 7 and 8: Line feeds and command line arguments
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$(LD) -m $(LINK_64) -o $@ $<
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stdin: stdin.o ## Build Lesson 9: Reading from stdin
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$(LD) -m $(LINK_64) -o $@ $<
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help: run-help ## Print this helpful message (default)
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clean:
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rm -f $(PROGRAMS) *.o
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include ../makefiles/help.make
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