Mercurial > hg > toybox
annotate Makefile @ 47:6b933d9c54ac
Blah. The sed filter's not right, I'll try again later.
author | Rob Landley <rob@landley.net> |
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date | Thu, 04 Jan 2007 17:26:30 -0500 |
parents | e60d48d30ef0 |
children | 4f5cdc6552da |
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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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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5 CC = $(CROSS_COMPILE)gcc $(CFLAGS) -funsigned-char |
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6 STRIP = $(CROSS_COMPILE)strip |
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7 HOST_CC = gcc $(CFLAGS) -funsigned-char |
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8 |
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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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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 |
19
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Better dependencies, and feed the linker --gc-sections. (Which is not an
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15 .config: Config.in toys/Config.in |
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16 |
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17 # The long and roundabout sed is to make old versions of sed happy. New ones |
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18 # have '\n' so can replace one line with two without all the branches and |
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19 # mucking about with hold space. |
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20 gen_config.h: .config |
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21 sed -n -e 's/^# CONFIG_\(.*\) is not set.*/\1/' \ |
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22 -e 't notset' -e 'b tryisset' -e ':notset' \ |
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23 -e 'h' -e 's/.*/#define CFG_& 0/p' \ |
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24 -e 'g' -e 's/.*/#define USE_&(...)/p' -e 'd' -e ':tryisset' \ |
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25 -e 's/^CONFIG_\(.*\)=y.*/\1/' -e 't isset' -e 'd' -e ':isset' \ |
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26 -e 'h' -e 's/.*/#define CFG_& 1/p' \ |
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27 -e 'g' -e 's/.*/#define USE_&(...) __VA_ARGS__/p' $< > $@ |
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28 |
41
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29 # Development targets |
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30 baseline: toybox_unstripped |
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31 @cp toybox_unstripped toybox_old |
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32 |
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33 bloatcheck: toybox_old toybox_unstripped |
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34 @scripts/bloat-o-meter toybox_old toybox_unstripped |
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35 |
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36 # Actual build |
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37 |
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38 toyfiles = main.c toys/*.c lib/*.c |
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39 toybox_unstripped: gen_config.h $(toyfiles) toys/toylist.h lib/lib.h toys.h |
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40 $(CC) $(CFLAGS) -I . $(toyfiles) -o toybox_unstripped \ |
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41 -ffunction-sections -fdata-sections -Wl,--gc-sections #\ |
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42 #2>&1 | sed -n -e '/may be used uninitialized/{s/.*/\n/;h;b};1{x;b};: print;=;p;x;/\n/b thing;p;: thing;${x;p}' >&2 |
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43 |
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44 toybox: toybox_unstripped |
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45 $(STRIP) toybox_unstripped -o toybox |
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46 clean:: |
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47 rm -f toybox toybox_old toybox_unstripped gen_config.h |
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48 |
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49 distclean: clean |
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50 rm -f .config* |
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51 |
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52 help:: |
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53 @echo ' baseline - Create busybox_old for use by bloatcheck.' |
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54 @echo ' bloatcheck - Report size differences between old and current versions' |