view Makefile @ 1613:96aa7ec74936 draft

Fix yet another sed bug. The s/// command would copy the \ of substitutions before deciding what to do with them (generally overwriting the \ with the new data). When the substitution was A) at the very end of the new string, B) resolved to nothing, it could leave a trailing \ that didn't belong there and didn't get overwritten because the "copy trailing data" part that copies the original string's null terminator already happened before the \ overwrote it. The ghostwheel() function restarts regexes after embedded NUL bytes, but if the string it's passed is _longer_ than the length it's told then it gets confused (and it means we're off the end of our allocation so segfaults are likely). Fix: test for \ first and move the "copy byte" logic into an else case.
author Rob Landley <rob@landley.net>
date Mon, 15 Dec 2014 03:34:55 -0600
parents 26287486fddc
children ce1d240b8ec8
line wrap: on
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# Makefile for toybox.
# Copyright 2006 Rob Landley <rob@landley.net>

all: toybox

KCONFIG_CONFIG ?= .config

toybox_stuff: $(KCONFIG_CONFIG) *.[ch] lib/*.[ch] toys/*.h toys/*/*.c scripts/*.sh

toybox toybox_unstripped: toybox_stuff
	scripts/make.sh

.PHONY: clean distclean baseline bloatcheck install install_flat \
	uinstall uninstall_flat test tests help toybox_stuff

include kconfig/Makefile

$(KCONFIG_CONFIG): $(KCONFIG_TOP)
$(KCONFIG_TOP): generated/Config.in
generated/Config.in: toys/*/*.c scripts/genconfig.sh
	scripts/genconfig.sh

HOSTCC?=cc

# Development targets
baseline: toybox_unstripped
	@cp toybox_unstripped toybox_old

bloatcheck: toybox_old toybox_unstripped
	@scripts/bloatcheck toybox_old toybox_unstripped

generated/instlist: toybox_stuff
	NOBUILD=1 scripts/make.sh
	$(HOSTCC) -I . scripts/install.c -o generated/instlist

install_flat: generated/instlist
	scripts/install.sh --symlink --force

install:
	scripts/install.sh --long --symlink --force

uninstall_flat: generated/instlist
	scripts/install.sh --uninstall

uninstall:
	scripts/install.sh --long --uninstall

change: generated/instlist
	export PREFIX=$${PREFIX:-change/} && \
	mkdir -p "$$PREFIX" && \
	for i in $$(generated/instlist); \
		do echo make $$i && \
		scripts/single.sh $$i || touch $$PREFIX/$${i}.bad; \
	done

clean::
	rm -rf toybox toybox_unstripped generated change .singleconfig*

distclean: clean
	rm -f toybox_old .config*

test: tests

tests:
	scripts/test.sh

help::
	@echo  '  toybox          - Build toybox.'
	@echo  '  change          - Build each command standalone under change/.'
	@echo  '  baseline        - Create busybox_old for use by bloatcheck.'
	@echo  '  bloatcheck      - Report size differences between old and current versions'
	@echo  '  test            - Run test suite against compiled commands.'
	@echo  '  clean           - Delete temporary files.'
	@echo  "  distclean       - Delete everything that isn't shipped."
	@echo  '  install_flat    - Install toybox into $$PREFIX directory.'
	@echo  '  install         - Install toybox into subdirectories of $$PREFIX.'
	@echo  '  uninstall_flat  - Remove toybox from $$PREFIX directory.'
	@echo  '  uninstall       - Remove toybox from subdirectories of $$PREFIX.'
	@echo  ''
	@echo  'example: CFLAGS="--static" CROSS_COMPILE=armv5l- make defconfig toybox install'
	@echo  ''