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# Makefile for toybox.
# Copyright 2006 Rob Landley <rob@landley.net>
CFLAGS := $(CFLAGS) -Wall -Wundef -Wno-char-subscripts -Os
CCFLAGS = $(CFLAGS) -funsigned-char
CC = $(CROSS_COMPILE)gcc
STRIP = $(CROSS_COMPILE)strip
HOSTCC = gcc
# A synonym.
CROSS_COMPILE = $(CROSS)
all: toybox
.PHONY: clean
include kconfig/Makefile
# defconfig is the "maximum sane config"; allyesconfig minus debugging and such.
defconfig: allyesconfig
@sed -i -r -e "s/^(CONFIG_TOYBOX_(DEBUG|FREE))=.*/# \1 is not set/" .config
.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
# Get list of toys/*.c files from .config
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@')
# Compile toybox from source
toyfiles = main.c lib/*.c $(toysfiles)
toybox_unstripped: gen_config.h $(toyfiles) toys/toylist.h lib/*.h toys.h
$(CC) $(CCFLAGS) -I . $(toyfiles) -o toybox_unstripped \
-ffunction-sections -fdata-sections -Wl,--gc-sections
toybox: toybox_unstripped
$(STRIP) toybox_unstripped -o toybox
instlist: toybox
$(HOSTCC) $(CCFLAGS) -I . scripts/install.c -o instlist
install_flat: instlist
@mkdir -p $(PREFIX)/
@cp toybox $(PREFIX)/
@for i in `./instlist`; do ln -s toybox "$(PREFIX)/$$i"; done
clean::
rm -f toybox toybox_old toybox_unstripped gen_config.h instlist
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'
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