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Better dependencies, and feed the linker --gc-sections. (Which is not an substitute for building just the stuff we need, but is easy to do for now.)
author Rob Landley <rob@landley.net>
date Thu, 02 Nov 2006 19:50:02 -0500
parents f8e628f61f16
children 7d3f0ff39878
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f8e628f61f16 Make the config generate gen_config.h with CFG_ and USE() macros.
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1 # Makefile for toybox.
f8e628f61f16 Make the config generate gen_config.h with CFG_ and USE() macros.
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2 # Copyright 2006 Rob Landley <rob@landley.net>
f8e628f61f16 Make the config generate gen_config.h with CFG_ and USE() macros.
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3
f8e628f61f16 Make the config generate gen_config.h with CFG_ and USE() macros.
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4 CFLAGS = -Wall -Os -s
f8e628f61f16 Make the config generate gen_config.h with CFG_ and USE() macros.
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5 CC = $(CROSS_COMPILE)gcc $(CFLAGS)
f8e628f61f16 Make the config generate gen_config.h with CFG_ and USE() macros.
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6 HOST_CC = gcc $(CFLAGS)
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7
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8 all: toybox
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9
f8e628f61f16 Make the config generate gen_config.h with CFG_ and USE() macros.
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10 .PHONY: clean
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12 include kconfig/Makefile
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59d58fab67c6 Next snapshot. Tries to grab something out of lib in order to build, I have
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414625f97667 Better dependencies, and feed the linker --gc-sections. (Which is not an
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14 .config: Config.in toys/Config.in
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16 # The long and roundabout sed is to make old versions of sed happy. New ones
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17 # have '\n' so can replace one line with two without all the branches and
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parents: 7
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18 # mucking about with hold space.
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19 gen_config.h: .config
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20 sed -n -e 's/^# CONFIG_\(.*\) is not set.*/\1/' \
f8e628f61f16 Make the config generate gen_config.h with CFG_ and USE() macros.
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21 -e 't notset' -e 'b tryisset' -e ':notset' \
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22 -e 'h' -e 's/.*/#define CFG_& 0/p' \
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23 -e 'g' -e 's/.*/#define USE_&(...)/p' -e 'd' -e ':tryisset' \
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24 -e 's/^CONFIG_\(.*\)=y.*/\1/' -e 't isset' -e 'd' -e ':isset' \
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25 -e 'h' -e 's/.*/#define CFG_& 1/p' \
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26 -e 'g' -e 's/.*/#define USE_&(...) __VA_ARGS__/p' $< > $@
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28 # Actual build
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29
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30 toyfiles = main.c toys/*.c lib/*.c
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31 toybox: gen_config.h $(toyfiles) lib/lib.h toys.h
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32 $(CC) -Wall -Os -s -funsigned-char $(CFLAGS) -I . \
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33 $(toyfiles) -o toybox -ffunction-sections -fdata-sections -Wl,--gc-sections
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34
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35 clean::
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36 rm -f toybox gen_config.h
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37
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38 distclean: clean
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39 rm -f .config