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view kconfig/Makefile @ 1604:f057223498e4 draft

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Remove more strncpy() calls. The semantics of strncat() and strncpy() are non-obvious, so let's not use 'em. Both zero all their remaining buffer space, and with strncat() the size is the space left at the _end_ of the string (not the size of the buffer) so it's way too easy to stomp memory you don't own. As long as we have to measure stuff ourselves to get it right, just use memcpy().
author Rob Landley <rob@landley.net>
date Sat, 13 Dec 2014 11:56:41 -0600
parents d4176f3f3835
children
line wrap: on
line source

# ===========================================================================
# Kernel configuration targets
# These targets are used from top-level makefile

KCONFIG_TOP = Config.in
KCONFIG_PROJECT = ToyBox
obj = ./kconfig
PHONY += clean help oldconfig menuconfig config silentoldconfig \
	randconfig allyesconfig allnoconfig allmodconfig defconfig

menuconfig: $(obj)/mconf $(KCONFIG_TOP)
	$< $(KCONFIG_TOP)

config: $(obj)/conf $(KCONFIG_TOP)
	$< $(KCONFIG_TOP)

oldconfig: $(obj)/conf $(KCONFIG_TOP)
	$< -o $(KCONFIG_TOP)

silentoldconfig: $(obj)/conf $(KCONFIG_TOP)
	$< -s $(KCONFIG_TOP)

randconfig: $(obj)/conf $(KCONFIG_TOP)
	$< -r $(KCONFIG_TOP)

allyesconfig: $(obj)/conf $(KCONFIG_TOP)
	$< -y $(KCONFIG_TOP)

allnoconfig: $(obj)/conf $(KCONFIG_TOP)
	$< -n $(KCONFIG_TOP)

defconfig: $(obj)/conf $(KCONFIG_TOP)
	$< -D /dev/null $(KCONFIG_TOP)

# Help text used by make help
help::
	@echo  '  config	  - Update current config utilising a line-oriented program'
	@echo  '  menuconfig	  - Update current config utilising a menu based program'
	@echo  '  oldconfig	  - Update current config utilising a provided .config as base'
	@echo  '  silentoldconfig - Same as oldconfig, but quietly'
	@echo  '  randconfig	  - New config with random answer to all options'
	@echo  '  defconfig	  - New config with default answer to all options'
	@echo  '  allyesconfig	  - New config where all options are accepted with yes'
	@echo  '  allnoconfig	  - New config where all options are answered with no'

# Cheesy build

SHIPPED = kconfig/zconf.tab.c kconfig/lex.zconf.c kconfig/zconf.hash.c

%.c: %.c_shipped
	@ln -s $(notdir $<) $@

gen_config.h: .config

kconfig/mconf: $(SHIPPED)
	$(HOSTCC) -o $@ kconfig/mconf.c kconfig/zconf.tab.c \
		kconfig/lxdialog/*.c -lcurses -DCURSES_LOC="<ncurses.h>" \
		-DKBUILD_NO_NLS=1 -DPROJECT_NAME=\"$(KCONFIG_PROJECT)\"

kconfig/conf: $(SHIPPED)
	$(HOSTCC) -o $@ kconfig/conf.c kconfig/zconf.tab.c -DKBUILD_NO_NLS=1 \
		-DPROJECT_NAME=\"$(KCONFIG_PROJECT)\"

clean::
	rm -f $(wildcard kconfig/*zconf*.c) kconfig/conf kconfig/mconf