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a0871be6c0
* Update buildroot-patches for 2020.11-rc1 buildroot * Update buildroot to 2020.11-rc1 Signed-off-by: Stefan Agner <stefan@agner.ch> * Don't rely on sfdisk --list-free output The --list-free (-F) argument does not allow machine readable mode. And it seems that the output format changes over time (different spacing, using size postfixes instead of raw blocks). Use sfdisk json output and calculate free partition space ourselfs. This works for 2.35 and 2.36 and is more robust since we rely on output which is meant for scripts to parse. * Migrate defconfigs for Buildroot 2020.11-rc1 In particular, rename BR2_TARGET_UBOOT_BOOT_SCRIPT(_SOURCE) to BR2_PACKAGE_HOST_UBOOT_TOOLS_BOOT_SCRIPT(_SOURCE). * Rebase/remove systemd patches for systemd 246 * Drop apparmor/libapparmor from buildroot-external * hassos-persists: use /run as directory for lockfiles The U-Boot tools use /var/lock by default which is not created any more by systemd by default (it is under tmpfiles legacy.conf, which we no longer install). * Disable systemd-update-done.service The service is not suited for pure read-only systems. In particular the service needs to be able to write a file in /etc and /var. Remove the service. Note: This is a static service and cannot be removed using systemd-preset. * Disable apparmor.service for now The service loads all default profiles. Some might actually cause problems. E.g. the profile for ping seems not to match our setup for /etc/resolv.conf: [85503.634653] audit: type=1400 audit(1605286002.684:236): apparmor="DENIED" operation="open" profile="ping" name="/run/resolv.conf" pid=27585 comm="ping" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
147 lines
5.5 KiB
Diff
147 lines
5.5 KiB
Diff
From c0f075bdee5edabf8f19b68e0880fbd249a89653 Mon Sep 17 00:00:00 2001
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Date: Sat, 3 Jan 2015 15:09:59 +0100
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Subject: [PATCH] Add test for -Wunused-but-set-variable
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The -Wunused-but-set-variable option does not exist in some old gcc
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versions (gcc 4.5.x), so using it unconditionally breaks the build
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with such compilers.
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This commit introduces the AX_CHECK_COMPILE_FLAG m4 macro taken from
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the autoconf-archive
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(http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_check_compile_flag.m4),
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and uses it to detect if the -Wunused-but-set-variable option is
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supported, and only uses it in this case.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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(rebased against v0.1.0)
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Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
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(rebased against v0.6.3)
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Signed-off-by: Adam Duskett <Aduskett@gmail.com>
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---
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Makefile.am | 1 +
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configure.ac | 6 ++-
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m4/ax_check_compile_flag.m4 | 74 +++++++++++++++++++++++++++++++++++++
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3 files changed, 79 insertions(+), 2 deletions(-)
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create mode 100644 m4/ax_check_compile_flag.m4
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diff --git a/Makefile.am b/Makefile.am
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index f961fdb..3ddbe59 100644
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--- a/Makefile.am
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+++ b/Makefile.am
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@@ -151,6 +151,7 @@ janus_CFLAGS = \
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-DEVENTDIR=\"$(eventdir)\" \
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-DLOGGERDIR=\"$(loggerdir)\" \
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-DCONFDIR=\"$(confdir)\" \
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+ @GCC_WARN_UNUSED_BUT_SET@ \
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$(BORINGSSL_CFLAGS) \
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$(NULL)
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diff --git a/configure.ac b/configure.ac
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index ca17a29..beef91a 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -13,6 +13,9 @@ AM_SILENT_RULES([yes])
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AC_USE_SYSTEM_EXTENSIONS
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AC_PROG_CC
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+AX_CHECK_COMPILE_FLAG([-Wunused-but-set-variable],
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+ [GCC_WARN_UNUSED_BUT_SET=-Wunused-but-set-variable])
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+AC_SUBST(GCC_WARN_UNUSED_BUT_SET)
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LT_PREREQ([2.2])
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LT_INIT
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@@ -64,8 +67,7 @@ clang*)
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CFLAGS="$CFLAGS \
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-Wcast-align \
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-Wno-override-init \
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- -Wunsafe-loop-optimizations \
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- -Wunused-but-set-variable"
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+ -Wunsafe-loop-optimizations"
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esac
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JANUS_VERSION=103
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diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4
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new file mode 100644
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index 0000000..51df0c0
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--- /dev/null
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+++ b/m4/ax_check_compile_flag.m4
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@@ -0,0 +1,74 @@
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+# ===========================================================================
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+# http://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
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+# ===========================================================================
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+#
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+# SYNOPSIS
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+#
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+# AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
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+#
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+# DESCRIPTION
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+#
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+# Check whether the given FLAG works with the current language's compiler
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+# or gives an error. (Warnings, however, are ignored)
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+#
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+# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
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+# success/failure.
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+#
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+# If EXTRA-FLAGS is defined, it is added to the current language's default
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+# flags (e.g. CFLAGS) when the check is done. The check is thus made with
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+# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to
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+# force the compiler to issue an error when a bad flag is given.
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+#
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+# INPUT gives an alternative input source to AC_COMPILE_IFELSE.
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+#
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+# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
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+# macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
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+#
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+# LICENSE
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+#
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+# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
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+# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
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+#
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+# This program is free software: you can redistribute it and/or modify it
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+# under the terms of the GNU General Public License as published by the
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+# Free Software Foundation, either version 3 of the License, or (at your
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+# option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful, but
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+# WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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+# Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License along
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+# with this program. If not, see <http://www.gnu.org/licenses/>.
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+#
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+# As a special exception, the respective Autoconf Macro's copyright owner
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+# gives unlimited permission to copy, distribute and modify the configure
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+# scripts that are the output of Autoconf when processing the Macro. You
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+# need not follow the terms of the GNU General Public License when using
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+# or distributing such scripts, even though portions of the text of the
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+# Macro appear in them. The GNU General Public License (GPL) does govern
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+# all other use of the material that constitutes the Autoconf Macro.
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+#
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+# This special exception to the GPL applies to versions of the Autoconf
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+# Macro released by the Autoconf Archive. When you make and distribute a
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+# modified version of the Autoconf Macro, you may extend this special
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+# exception to the GPL to apply to your modified version as well.
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+
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+#serial 3
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+
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+AC_DEFUN([AX_CHECK_COMPILE_FLAG],
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+[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX
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+AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
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+AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
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+ ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
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+ _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
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+ AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
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+ [AS_VAR_SET(CACHEVAR,[yes])],
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+ [AS_VAR_SET(CACHEVAR,[no])])
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+ _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
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+AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes],
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+ [m4_default([$2], :)],
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+ [m4_default([$3], :)])
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+AS_VAR_POPDEF([CACHEVAR])dnl
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+])dnl AX_CHECK_COMPILE_FLAGS
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--
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2.20.1
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