linux-kernel - Re: [PATCH v2 07/12] parisc/percpu: Work around the lack of __SIZEOF_INT128_

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20230602143912.GI620383@hirez.programming.kicks-ass.net>
Date:   Fri, 2 Jun 2023 16:39:12 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Helge Deller <deller@....de>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Jonathan Corbet <corbet@....net>,
        Will Deacon <will@...nel.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>, dennis@...nel.org,
        Tejun Heo <tj@...nel.org>, Christoph Lameter <cl@...ux.com>,
        Heiko Carstens <hca@...ux.ibm.com>, gor@...ux.ibm.com,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        borntraeger@...ux.ibm.com, Sven Schnelle <svens@...ux.ibm.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>, Joerg Roedel <joro@...tes.org>,
        suravee.suthikulpanit@....com, Robin Murphy <robin.murphy@....com>,
        David Woodhouse <dwmw2@...radead.org>,
        Baolu Lu <baolu.lu@...ux.intel.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Hyeonggon Yoo <42.hyeyoo@...il.com>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-s390@...r.kernel.org, iommu@...ts.linux.dev,
        Linux-Arch <linux-arch@...r.kernel.org>,
        linux-crypto@...r.kernel.org,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Michael Ellerman <mpe@...erman.id.au>,
        "James E . J . Bottomley" <James.Bottomley@...senpartnership.com>,
        linux-parisc@...r.kernel.org,
        John David Anglin <dave.anglin@...l.net>,
        Sam James <sam@...too.org>
Subject: Re: [PATCH v2 07/12] parisc/percpu: Work around the lack of
 __SIZEOF_INT128__

On Thu, Jun 01, 2023 at 09:29:18AM -0400, Linus Torvalds wrote:

> Right now we have that "minimum gcc version" in a somewhat annoying
> place: it's in the ./scripts/min-tool-version.sh file as a shell
> script.

Something like so then?

---
Subject: parisc: Raise minimal GCC version
From: Peter Zijlstra <peterz@...radead.org>
Date: Fri Jun  2 16:33:54 CEST 2023

With 64bit builds depending on __SIZEOF_INT128__ raise the parisc
minimum compiler version to gcc-11.0.0.

All other 64bit architectures provide this from GCC-5.1.0 (and
probably before), except hppa64 which only started advertising this
with GCC-11.

Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
---
 scripts/min-tool-version.sh |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/scripts/min-tool-version.sh
+++ b/scripts/min-tool-version.sh
@@ -17,7 +17,11 @@ binutils)
 	echo 2.25.0
 	;;
 gcc)
-	echo 5.1.0
+	if [ "$SRCARCH" = parisc ]; then
+		echo 11.0.0
+	else
+		echo 5.1.0
+	fi
 	;;
 llvm)
 	if [ "$SRCARCH" = s390 ]; then