68 lines
2.1 KiB
Makefile
68 lines
2.1 KiB
Makefile
# Makefile for toybox.
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# Copyright 2006 Rob Landley <rob@landley.net>
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CFLAGS = -Wall -Wundef -Wno-char-subscripts -Os
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CC = $(CROSS_COMPILE)gcc $(CFLAGS) -funsigned-char
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STRIP = $(CROSS_COMPILE)strip
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HOST_CC = gcc $(CFLAGS) -funsigned-char
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all: toybox
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.PHONY: clean
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include kconfig/Makefile
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# defconfig is the "maximum sane config"; allyesconfig minus debugging and such.
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defconfig: allyesconfig
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@sed -i -r -e "s/^(CONFIG_TOYBOX_(DEBUG|FREE))=.*/# \1 is not set/" .config
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.config: Config.in toys/Config.in
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# The long and roundabout sed is to make old versions of sed happy. New ones
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# have '\n' so can replace one line with two without all the branches and
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# mucking about with hold space.
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gen_config.h: .config
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sed -n -e 's/^# CONFIG_\(.*\) is not set.*/\1/' \
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-e 't notset' -e 'b tryisset' -e ':notset' \
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-e 'h' -e 's/.*/#define CFG_& 0/p' \
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-e 'g' -e 's/.*/#define USE_&(...)/p' -e 'd' -e ':tryisset' \
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-e 's/^CONFIG_\(.*\)=y.*/\1/' -e 't isset' -e 'd' -e ':isset' \
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-e 'h' -e 's/.*/#define CFG_& 1/p' \
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-e 'g' -e 's/.*/#define USE_&(...) __VA_ARGS__/p' $< > $@
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# Development targets
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baseline: toybox_unstripped
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@cp toybox_unstripped toybox_old
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bloatcheck: toybox_old toybox_unstripped
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@scripts/bloat-o-meter toybox_old toybox_unstripped
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# Actual build
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toyfiles = main.c toys/*.c lib/*.c
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toybox_unstripped: gen_config.h $(toyfiles) toys/toylist.h lib/lib.h toys.h
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$(CC) $(CFLAGS) -I . $(toyfiles) -o toybox_unstripped \
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-ffunction-sections -fdata-sections -Wl,--gc-sections #\
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#2>&1 | sed -n -e '/may be used uninitialized/{s/.*/\n/;h;b};1{x;b};: print;=;p;x;/\n/b thing;p;: thing;${x;p}' >&2
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toybox: toybox_unstripped
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$(STRIP) toybox_unstripped -o toybox
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instlist: toybox
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$(HOST_CC) -I . scripts/install.c -o instlist
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install_flat: instlist
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@mkdir -p $(PREFIX)/
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@cp toybox $(PREFIX)/
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@for i in `./instlist`; do ln -s toybox "$(PREFIX)/$$i"; done
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clean::
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rm -f toybox toybox_old toybox_unstripped gen_config.h instlist
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distclean: clean
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rm -f .config*
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help::
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@echo ' baseline - Create busybox_old for use by bloatcheck.'
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@echo ' bloatcheck - Report size differences between old and current versions'
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