The following pull request was submitted through Github. It can be accessed and reviewed at: https://github.com/lxc/lxc/pull/2692
This e-mail was sent by the LXC bot, direct replies will not reach the author unless they happen to be subscribed to this list. === Description (from pull-request) === The gcc implementation and the C standard are not to be considered sane in this respect. We don't want to risk reordering of writes when the compiler incorrectly *thinks* two types do not alias each other. Signed-off-by: Christian Brauner <christian.brau...@ubuntu.com>
From a3bb6b8ed95013f9e7b21db833cd5d0da6671019 Mon Sep 17 00:00:00 2001 From: Christian Brauner <christian.brau...@ubuntu.com> Date: Fri, 12 Oct 2018 21:23:07 +0200 Subject: [PATCH] autools: use -fno-strict-aliasing The gcc implementation and the C standard are not to be considered sane in this respect. We don't want to risk reordering of writes when the compiler incorrectly *thinks* two types do not alias each other. Signed-off-by: Christian Brauner <christian.brau...@ubuntu.com> --- configure.ac | 1 + 1 file changed, 1 insertion(+) diff --git a/configure.ac b/configure.ac index cbd6dbb7b..a7358fe59 100644 --- a/configure.ac +++ b/configure.ac @@ -694,6 +694,7 @@ AX_CHECK_COMPILE_FLAG([-fdiagnostics-color], [CFLAGS="$CFLAGS -fdiagnostics-colo AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough], [CFLAGS="$CFLAGS -Wimplicit-fallthrough"],,[-Werror]) AX_CHECK_COMPILE_FLAG([-Wcast-align], [CFLAGS="$CFLAGS -Wcast-align"],,[-Werror]) AX_CHECK_COMPILE_FLAG([-Wstrict-prototypes], [CFLAGS="$CFLAGS -Wstrict-prototypes"],,[-Werror]) +AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [CFLAGS="$CFLAGS -fno-strict-aliasing"],,[-Werror]) AX_CHECK_LINK_FLAG([-z relro], [LDLAGS="$LDLAGS -z relro"],,[]) AX_CHECK_LINK_FLAG([-z now], [LDLAGS="$LDLAGS -z now"],,[])
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