From 2004d466896f9b81452c7bdac1ee00866b8f0ff1 Mon Sep 17 00:00:00 2001 From: Sergei Trofimovich Date: Wed, 13 Feb 2019 21:01:27 +0000 Subject: flag-o-matic.eclass: whitelist -mstackrealign for 'strip-flags' Allow '-mstackrealign' in ebuilds like glibc to force stack realignment. That will allow running ancient (or foreign) binaries that don't maintain 16-byte stack alignment. See bug #677852 for example. Reported-by: Michael Huss Closes: https://bugs.gentoo.org/677852 Signed-off-by: Sergei Trofimovich --- eclass/flag-o-matic.eclass | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'eclass/flag-o-matic.eclass') diff --git a/eclass/flag-o-matic.eclass b/eclass/flag-o-matic.eclass index 582339096573..933104190ae3 100644 --- a/eclass/flag-o-matic.eclass +++ b/eclass/flag-o-matic.eclass @@ -69,6 +69,13 @@ setup-allowed-flags() { # gcc 4.9 -mno-avx512cd -mno-avx512er -mno-avx512f -mno-avx512pf -mno-sha ) + + # Allow some safe individual flags. Should come along with the bug reference. + ALLOWED_FLAGS+=( + # Allow explicit stack realignment to run non-conformant + # binaries: bug #677852 + -mstackrealign + ) } # inverted filters for hardened compiler. This is trying to unpick -- cgit v1.2.3-65-gdbad