53 lines
2.4 KiB
Makefile
53 lines
2.4 KiB
Makefile
# This is not a independent Makefile; it is auxiliary file
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# included from main Makefile.
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# It depends on the following variables and macro:
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# $(FASM_PROGRAMS) is a list of all programs to build with FASM rule;
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# $(binarypart) is a macro which converts from $(1)=item of $(FASM_PROGRAMS)
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# to space-escaped full name of binary, $(respace) unescapes spaces;
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# $(fbinary) and $(fsource) gives space-unescaped full name of binary
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# and source (respectively) of $(f)=item of $(FASM_PROGRAMS).
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# Define the rule for all FASM programs.
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# Yes, this looks like a black magic.
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# But it is not so scary as it seems.
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# First, we define "meta-rule" as a rule which is
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# macro depending on $(fasmprog).
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# Second, the construction foreach+eval creates
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# usual rules, one for each $(fasmprog) in $(FASM_PROGRAMS).
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# Note that meta-rule is double-expanded, first
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# time as the arg of eval - it is the place where $(fasmprog)
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# gets expanded - and second time as the rule;
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# so all $ which are expected to expand at the second time should be escaped.
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# And all $ which are expected to be expanded by the shell should be escaped
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# twice, so they become $$$$.
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# The arguments of macro fasm_meta_rule:
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# $(1) = name of binary file,
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# $(2) = name of main source file.
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# $(3) = folder of binary file - without spaces.
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# $(4) = name of program - without path and extension,
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define fasm_meta_rule
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$(1): $(2) Makefile.fasm .deps/.dir $$(call respace,$$(addsuffix .dir,$(3)))
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fasm -m 65536 $$< "$$@" -s .deps/$(4).fas
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prepsrc .deps/$(4).fas /dev/null
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prepsrc .deps/$(4).fas /dev/stdout | \
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perl -n -e 's|\\|/|g;push @a,$$$$1 if/^;include \x27(.*?)\x27/;' \
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-e 'END{$$$$a=join " \\\n ",@a;print "$(1): $$$$a\n$$$$a:\n"}' > .deps/$(4).Po
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kpack --nologo "$$@"
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-include .deps/$(4).Po
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endef
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progname=$(call respace,$(basename $(notdir $(call binarypart,$(f)))))
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binarydir=$(subst ./,,$(dir $(call binarypart,$(f))))
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$(foreach f,$(FASM_PROGRAMS),$(eval $(call fasm_meta_rule,$(fbinary),$(fsource),$(binarydir),$(progname))))
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# Rule for the kernel differs: it uses kerpack instead of kpack.
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kernel.mnt: $(KERNEL)/kernel.asm Makefile.fasm .deps/.dir
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fasm -m 65536 $< "$@" -s .deps/kernel.fas
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prepsrc .deps/kernel.fas /dev/null
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prepsrc .deps/kernel.fas /dev/stdout | \
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perl -n -e 's|\\|/|g;push @a,$$1 if/^;include \x27(.*?)\x27/;' \
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-e 'END{$$a=join " \\\n ",@a;print "$@: $$a\n$$a:\n"}' > .deps/kernel.Po
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kerpack $@
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-include .deps/kernel.Po
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