diff options
Diffstat (limited to 'libre/linux-libre-lts/0002-gcc-plugins-modern-gcc-plugin-infrastructure-requres.patch')
| -rw-r--r-- | libre/linux-libre-lts/0002-gcc-plugins-modern-gcc-plugin-infrastructure-requres.patch | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/libre/linux-libre-lts/0002-gcc-plugins-modern-gcc-plugin-infrastructure-requres.patch b/libre/linux-libre-lts/0002-gcc-plugins-modern-gcc-plugin-infrastructure-requres.patch new file mode 100644 index 000000000..8e6cee084 --- /dev/null +++ b/libre/linux-libre-lts/0002-gcc-plugins-modern-gcc-plugin-infrastructure-requres.patch @@ -0,0 +1,76 @@ +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 |