openwrt/include
Petr Štetiar cbbef976e2 build: dtc: Disable noisy warnings by default
While helping with review and build testing of a few 4.19 pull requests,
I've noticed, that dtc compiler in OpenWrt uses different options then
upstream kernel, which is leading to a very noisy output[1]. It wouldn't
be that bad per se, but a lot of such warnings aren't easily fixable so
I think, that we should follow what upstream does and simply ignore^W
silence those noisy warnings.

So this patch tries to syncs dtc compiler flags with upstream kernel
till version 4.19.13, disabling those warnings as they were added in
upstream kernel:

 v4.6-rc1-2-gbc55398 dtc: turn off dtc unit address warnings by default

  The newly added dtc warning to check DT unit-address without reg
  property and vice-versa generates lots of warnings. Turn off the check
  unless building with W=1 or W=2.

 v4.11-rc2-11-g8654cb8 dtc: update warning settings for new bus and node/property

  dtc gained new warnings checking PCI and simple buses, unit address
  formatting, and stricter node and property name checking. Disable the
  new dtc warnings by default as there are 1000s. As before, warnings are
  enabled with W=1 or W=2. The strict node and property name checks are a
  bit subjective, so they are only enabled for W=2.

 v4.16-rc3-9-g4fd98e3 scripts: turn off some new dtc warnings by default

  The latest dtc update adds some new noisy warnings, so turn them off by
  default. Disable 'avoid_unnecessary_addr_size' and 'alias_paths'. They
  can be re-enabled by building with 'W=1'.

 v4.17-rc1-27-g74656b6 kbuild: disable new dtc graph and unit-address warnings

  dtc gained some new warnings for OF graphs and unique unit addresses,
  but they are currently much too noisy. So turn off
  'graph_child_address', 'graph_port', and 'unique_unit_address' warnings
  by default. They can be enabled by building dtbs with W=1.

Build tested on imx6 and ath79 with 4.14 and 4.19.

1. https://github.com/openwrt/openwrt/pull/1694#issuecomment-450864335

Signed-off-by: Petr Štetiar <ynezz@true.cz>
2019-01-27 00:16:14 +01:00
..
site include/site: add powerpc64 config 2017-10-24 13:24:04 +02:00
autotools.mk treewide: fix build depends to refer to source package names 2018-01-13 19:54:44 +01:00
cmake.mk build: use CMAKE_SOURCE_SUBDIR variable to cmake.mk 2018-09-29 17:23:11 +02:00
debug.mk include: remove trailing whitespaces 2015-03-29 07:29:18 +00:00
depends.mk build: add missing wildcard for ignoring .pkgdir in dependency checks 2017-02-05 22:17:30 +01:00
device_table.txt image: ensure that /dev/console exist in rootfs images 2013-08-27 12:02:58 +00:00
download.mk download.mk: enable DownloadMethod/github_archive 2018-07-05 01:30:57 +08:00
feeds.mk build: add ABI_VERSION to binary package names 2019-01-19 14:32:12 +01:00
hardened-ld-pie.specs build: add hardened builds with PIE (ASLR) support 2018-01-27 16:46:45 +01:00
hardening.mk build: fix ASLR for LTO packages 2018-07-30 14:26:16 +02:00
host-build.mk build: do not override CCACHE_DIR when ccache is disabled 2018-07-24 15:23:05 +02:00
image-commands.mk build: add a script for generating Linksys factory images 2019-01-26 21:43:07 +01:00
image-legacy.mk image: fix ar71xx legacy images 2017-07-15 07:02:59 +02:00
image.mk build: dtc: Disable noisy warnings by default 2019-01-27 00:16:14 +01:00
kernel-build.mk include/kernel-build.mk: fix kernel rebuild on backport patch changes 2018-07-14 13:07:34 +02:00
kernel-defaults.mk kernel: fix downloading rcX releases 2018-12-03 09:34:57 +01:00
kernel-version.mk kernel: bump 4.14 to 4.14.95 2019-01-24 10:10:45 +01:00
kernel.mk build: fix build dependency of kmod .ipk with version filtered files 2018-12-18 20:04:17 +00:00
netfilter.mk netfilter: Add fib support for nftables 2018-12-16 00:57:20 +01:00
nls.mk treewide: fix build depends to refer to source package names 2018-01-13 19:54:44 +01:00
package-bin.mk build: use if-then to avoid non-zero return codes in bin/ packaging code 2017-01-23 13:49:45 +01:00
package-defaults.mk include/package-defaults.mk: fix default Build/Prepare with empty ./src 2018-03-07 09:59:08 +01:00
package-dumpinfo.mk build: expose ABI version in .packageauxvars 2019-01-19 14:32:01 +01:00
package-ipkg.mk build: formatting fixes for per-provide ABI_VERSION suffixes 2019-01-24 12:51:39 +01:00
package-seccomp.mk include: add a seccomp filter install wrapper 2015-03-26 10:57:56 +00:00
package.mk build: do not override CCACHE_DIR when ccache is disabled 2018-07-24 15:23:05 +02:00
prereq-build.mk build: remove GNU time dependency 2018-08-05 00:06:27 +02:00
prereq.mk include: extend SetupHostCommand macro to accept more arguments 2018-04-05 13:58:15 +02:00
quilt.mk kernel: split patches folder up into backport, pending and hack folders 2017-08-05 08:46:36 +02:00
rootfs.mk include/rootfs.mk: remove boot directory 2018-11-26 12:05:44 +01:00
scan.awk build: propagate override information to .packageinfo 2015-02-09 12:09:31 +00:00
scan.mk build: fix target metadata scan dependencies 2018-07-02 14:27:06 +02:00
scons.mk build: use CXXFLAGS if defined 2016-10-13 17:04:43 +02:00
shell.sh build: use mkhash to replace various quirky md5sum/openssl calls 2017-01-05 11:09:12 +01:00
subdir.mk build: remove GNU time dependency 2018-08-05 00:06:27 +02:00
target.mk hostapd: add basic variant 2018-10-16 15:07:41 +01:00
toolchain-build.mk toolchain: Include hardening.mk for toolchain build 2019-01-24 21:52:39 +01:00
toplevel.mk build: rename .packagesubdirs to .packageauxvars 2019-01-19 14:31:56 +01:00
u-boot.mk u-boot.mk: Fix building of recent U-Boot sources 2019-01-26 21:46:32 +01:00
uclibc++.mk toolchain: eliminate the INSTALL_LIBSTDCPP config symbol and make c++ support mandatory - fixes recursive config symbol dependency issues 2013-05-09 20:50:49 +00:00
unpack.mk build: unzip: perform operations quietly 2017-01-05 11:09:13 +01:00
verbose.mk include/verbose.mk: Add sc to failure message 2018-07-30 10:43:36 +02:00
version.mk base-files: fix HOME_URL replace 2018-08-02 07:54:40 +02:00