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