From dbe64d1029f21ac085fa0d6dc88f8e4896016f18 Mon Sep 17 00:00:00 2001 From: Mark H Weaver Date: Thu, 25 Jan 2018 14:13:57 -0500 Subject: gnu: linux-libre: Add retpoline support on x86 [mitigates spectre]. * gnu/packages/linux.scm (make-linux-libre): On x86 systems, build with GCC-7. --- gnu/packages/linux.scm | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm index 82f077668c..ee7f391b94 100644 --- a/gnu/packages/linux.scm +++ b/gnu/packages/linux.scm @@ -283,6 +283,14 @@ for ARCH and optionally VARIANT, or #f if there is no such configuration." ("bc" ,bc) ("openssl" ,openssl) ("kmod" ,kmod) + ;; On x86, build with GCC-7 for full retpoline support. + ;; FIXME: Remove this when our default compiler has retpoline support. + ,@(match (system->linux-architecture + (or (%current-target-system) (%current-system))) + ((or "x86_64" "i386") + `(("gcc" ,gcc-7))) + (_ + '())) ,@(match (and configuration-file (configuration-file (system->linux-architecture -- cgit v1.2.3