Files
buildroot/support/kconfig
Devreese Jorik 1f5095c1d3 support/kconfig: fix compiler warnings
Commit 324612d68e fixed several compiler warnings,
but actually introduced a new one by increasing the buffer size in confdata.c that gets passed
along to file_write_dep in util.c, because buf2's size wasn't increased along with it.

./util.c: In function ‘file_write_dep’:
./util.c:86:26: warning: ‘%s’ directive writing 10 or more bytes into a region of size between 1 and 4097 [-Wformat-overflow=]
   86 |         sprintf(buf2, "%s%s", dir, name);
      |                          ^~
./util.c:86:9: note: ‘sprintf’ output 11 or more bytes (assuming 4107) into a destination of size 4097
   86 |         sprintf(buf2, "%s%s", dir, name);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fix this by increasing the size of buf2 to match the passed buffer size.

Signed-off-by: Devreese Jorik <jorik.devreese@barco.com>
Signed-off-by: Thomas Devoogdt <thomas.devoogdt@barco.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2026-05-29 12:43:43 +02:00
..

This is a copy of the kconfig code in the kernel (currently 4.17-rc2) tweaked
to suit Buildroot.

To update:
	cp -r /usr/src/linux/scripts/kconfig support/kconfig.new
	cd support/kconfig.new
	# zconf.lex.c and zconf.tab.c needs to be generated by 'make menuconfig'
	mv zconf.lex.c zconf.lex.c_shipped
	mv zconf.tab.c zconf.tab.c_shipped
	rm -rf tests/
	cp -a ../kconfig/patches ../kconfig/README.buildroot ../kconfig/.gitignore .
	quilt push -a
	# Fix any conflict
	cd ..
	rm -rf kconfig
	mv kconfig.new kconfig

Then verify the toplevel targets work:
	config
	defconfig
	menuconfig
	nconfig
	xconfig
	gconfig
	oldconfig