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Gentoo's Bugzilla – Attachment 740556 Details for
Bug 814200
sys-kernel/gentoo-sources: GCC_PLUGINS are forcibly disabled if gcc-11 is the active compiler
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[patch]
gcc-plugins-modern-gcc-plugin-infrastructure-requres.patch
0002-gcc-plugins-modern-gcc-plugin-infrastructure-requres.patch (text/plain), 3.28 KB, created by
kfm
on 2021-09-21 18:25:18 UTC
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Description:
gcc-plugins-modern-gcc-plugin-infrastructure-requres.patch
Filename:
MIME Type:
Creator:
kfm
Created:
2021-09-21 18:25:18 UTC
Size:
3.28 KB
patch
obsolete
>From 50b29ce228d0622eae2b9854c5e4b9334c540a7a Mon Sep 17 00:00:00 2001 >From: Levente Polyak <levente@leventepolyak.net> >Date: Thu, 1 Sep 2021 22:19:19 +0200 >Subject: [PATCH] gcc-plugins: modern gcc plugin infrastructure requres c++11 > std > >Bump the used std to c++11 to avoid detection failure. This fixes the >support check on modern gcc plugin infrastructure that requires a >minimum standard of c++11 to compile. > >This effectively requires GCC 4.8.1. > >Signed-off-by: Levente Polyak <levente@leventepolyak.net> >--- > scripts/gcc-plugin.sh | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > >diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh >index b79fd0bea838..7abc00f60a8b 100755 >--- a/scripts/gcc-plugin.sh >+++ b/scripts/gcc-plugin.sh >@@ -8,7 +8,7 @@ srctree=$(dirname "$0") > gccplugins_dir=$($* -print-file-name=plugin) > > # we need a c++ compiler that supports the designated initializer GNU extension >-$HOSTCC -c -x c++ -std=gnu++98 - -fsyntax-only -I $srctree/gcc-plugins -I $gccplugins_dir/include 2>/dev/null <<EOF >+$HOSTCC -c -x c++ -std=gnu++11 - -fsyntax-only -I $srctree/gcc-plugins -I $gccplugins_dir/include 2>/dev/null <<EOF > #include "gcc-common.h" > class test { > public: >-- >2.33.0 > >commit 67a5a68013056cbcf0a647e36cb6f4622fb6a470 >Author: Valdis Kletnieks <valdis.kletnieks@vt.edu> >Date: Sat Dec 26 13:21:58 2020 -0500 > > gcc-plugins: fix gcc 11 indigestion with plugins... > > Fedora Rawhide has started including gcc 11,and the g++ compiler > throws a wobbly when it hits scripts/gcc-plugins: > > HOSTCXX scripts/gcc-plugins/latent_entropy_plugin.so > In file included from /usr/include/c++/11/type_traits:35, > from /usr/lib/gcc/x86_64-redhat-linux/11/plugin/include/system.h:244, > from /usr/lib/gcc/x86_64-redhat-linux/11/plugin/include/gcc-plugin.h:28, > from scripts/gcc-plugins/gcc-common.h:7, > from scripts/gcc-plugins/latent_entropy_plugin.c:78: > /usr/include/c++/11/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO > C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options. > 32 | #error This file requires compiler and library support \ > > In fact, it works just fine with c++11, which has been in gcc since 4.8, > and we now require 4.9 as a minimum. > > Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> > Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> > Signed-off-by: Kees Cook <keescook@chromium.org> > Link: https://lore.kernel.org/r/82487.1609006918@turing-police > >diff --git a/scripts/gcc-plugins/Makefile b/scripts/gcc-plugins/Makefile >index d66949bfeba4..b5487cce69e8 100644 >--- a/scripts/gcc-plugins/Makefile >+++ b/scripts/gcc-plugins/Makefile >@@ -22,9 +22,9 @@ always-y += $(GCC_PLUGIN) > GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin) > > plugin_cxxflags = -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \ >- -I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++98 \ >+ -I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++11 \ > -fno-rtti -fno-exceptions -fasynchronous-unwind-tables \ >- -ggdb -Wno-narrowing -Wno-unused-variable -Wno-c++11-compat \ >+ -ggdb -Wno-narrowing -Wno-unused-variable \ > -Wno-format-diag > > plugin_ldflags = -shared
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bug 814200
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740556
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740934
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746715
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748560