Mercurial > hg > toybox
annotate Makefile @ 109:1c5fa783450b
Convert HOST_CC to HOSTCC to be more like uClibc build.
author | Rob Landley <rob@landley.net> |
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date | Mon, 12 Mar 2007 21:17:01 -0400 |
parents | c3d1d74d5d8f |
children | 8b5ae5f607af |
rev | line source |
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Make the config generate gen_config.h with CFG_ and USE() macros.
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1 # Makefile for toybox. |
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Make the config generate gen_config.h with CFG_ and USE() macros.
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2 # Copyright 2006 Rob Landley <rob@landley.net> |
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3 |
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Make some of gcc 4.1's dumber warnings go away.
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4 CFLAGS = -Wall -Wundef -Wno-char-subscripts -Os |
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Reduce flag duplication and make kconfig use HOST_CC.
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5 CC = $(CROSS_COMPILE)gcc $(CFLAGS) -funsigned-char |
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6 STRIP = $(CROSS_COMPILE)strip |
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Convert HOST_CC to HOSTCC to be more like uClibc build.
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7 HOSTCC = gcc $(CFLAGS) -funsigned-char |
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Make the config generate gen_config.h with CFG_ and USE() macros.
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8 |
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Make the config generate gen_config.h with CFG_ and USE() macros.
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9 all: toybox |
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Make the config generate gen_config.h with CFG_ and USE() macros.
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10 |
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11 .PHONY: clean |
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12 |
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Make the config generate gen_config.h with CFG_ and USE() macros.
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13 include kconfig/Makefile |
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Next snapshot. Tries to grab something out of lib in order to build, I have
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14 |
90
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Add "make defconfig". Modify global options to start with CONFIG_TOYBOX_.
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15 # defconfig is the "maximum sane config"; allyesconfig minus debugging and such. |
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16 defconfig: allyesconfig |
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Missing comma, and slight simplification in defconfig sed invocation.
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17 @sed -i -r -e "s/^(CONFIG_TOYBOX_(DEBUG|FREE))=.*/# \1 is not set/" .config |
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18 |
19
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Better dependencies, and feed the linker --gc-sections. (Which is not an
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19 .config: Config.in toys/Config.in |
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20 |
14
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21 # The long and roundabout sed is to make old versions of sed happy. New ones |
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22 # have '\n' so can replace one line with two without all the branches and |
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23 # mucking about with hold space. |
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24 gen_config.h: .config |
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25 sed -n -e 's/^# CONFIG_\(.*\) is not set.*/\1/' \ |
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26 -e 't notset' -e 'b tryisset' -e ':notset' \ |
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27 -e 'h' -e 's/.*/#define CFG_& 0/p' \ |
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28 -e 'g' -e 's/.*/#define USE_&(...)/p' -e 'd' -e ':tryisset' \ |
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29 -e 's/^CONFIG_\(.*\)=y.*/\1/' -e 't isset' -e 'd' -e ':isset' \ |
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30 -e 'h' -e 's/.*/#define CFG_& 1/p' \ |
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31 -e 'g' -e 's/.*/#define USE_&(...) __VA_ARGS__/p' $< > $@ |
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32 |
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33 # Development targets |
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34 baseline: toybox_unstripped |
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35 @cp toybox_unstripped toybox_old |
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36 |
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37 bloatcheck: toybox_old toybox_unstripped |
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38 @scripts/bloat-o-meter toybox_old toybox_unstripped |
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39 |
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Teach build to build only the toys/*.c selected in .config, and teach
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40 # Get list of toys/*.c files from .config |
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41 |
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42 toysfiles = $(shell sed -nre 's/^CONFIG_(.*)=y/\1/;t skip;b;:skip;s/_.*//;p' .config | sort -u | tr A-Z a-z | grep -v '^toybox$$' | sed 's@\(.*\)@toys/\1.c@') |
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43 |
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44 # Compile toybox from source |
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45 |
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46 toyfiles = main.c lib/*.c $(toysfiles) |
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47 toybox_unstripped: gen_config.h $(toyfiles) toys/toylist.h lib/*.h toys.h |
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48 $(CC) $(CFLAGS) -I . $(toyfiles) -o toybox_unstripped \ |
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49 -ffunction-sections -fdata-sections -Wl,--gc-sections |
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50 |
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51 toybox: toybox_unstripped |
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52 $(STRIP) toybox_unstripped -o toybox |
89 | 53 |
54 instlist: toybox | |
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55 $(HOSTCC) -I . scripts/install.c -o instlist |
89 | 56 |
57 install_flat: instlist | |
58 @mkdir -p $(PREFIX)/ | |
59 @cp toybox $(PREFIX)/ | |
60 @for i in `./instlist`; do ln -s toybox "$(PREFIX)/$$i"; done | |
61 | |
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62 clean:: |
89 | 63 rm -f toybox toybox_old toybox_unstripped gen_config.h instlist |
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64 |
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65 distclean: clean |
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66 rm -f .config* |
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67 |
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68 help:: |
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69 @echo ' baseline - Create busybox_old for use by bloatcheck.' |
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70 @echo ' bloatcheck - Report size differences between old and current versions' |