From: takahiro.akashi@linaro.org (AKASHI Takahiro)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/15] Add support for clang LTO
Date: Thu, 9 Nov 2017 19:54:40 +0900 [thread overview]
Message-ID: <20171109105439.GA27630@linaro.org> (raw)
In-Reply-To: <20171104021303.bexhsxpg5tjerhu7@salmiak>
On Sat, Nov 04, 2017 at 02:13:04AM +0000, Mark Rutland wrote:
> On Fri, Nov 03, 2017 at 12:56:47PM -0700, Sami Tolvanen wrote:
> > On Fri, Nov 03, 2017 at 07:26:35PM +0000, Mark Rutland wrote:
> > > I guess that in Google you haven't tested on a platform with EL2
> > > available?
> >
> > Correct. I'll look into this and include a fix in v2. Does this work on a
> > clang build without LTO?
>
> I saw this on v4.14-rc7, with patch 7 (-mno-implicit-float), but no other
> patches from this series (i.e. no LTO).
Add -fno-jump-tables to ccflags-y of arch/arm64/kvm/hyp/Makefile.
Without this option, clang generates a branch instruction (br x11)
to an absolute (EL1) virtual address.
-Takahiro AKASHI
> Thanks,
> Mark.
next prev parent reply other threads:[~2017-11-09 10:54 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-03 17:11 [PATCH 00/15] Add support for clang LTO Sami Tolvanen
2017-11-03 17:11 ` [PATCH 01/15] kbuild: add ld-name macro and support for GNU gold Sami Tolvanen
2017-11-03 18:24 ` Nick Desaulniers
2017-11-03 17:11 ` [PATCH 02/15] kbuild: fix LD_DEAD_CODE_DATA_ELIMINATION with " Sami Tolvanen
2017-11-03 17:11 ` [PATCH 03/15] kbuild: add support for clang LTO Sami Tolvanen
2017-11-03 17:11 ` [PATCH 04/15] kbuild: fix dynamic ftrace with " Sami Tolvanen
2017-11-03 17:11 ` [PATCH 05/15] scripts/mod: disable LTO for empty.c Sami Tolvanen
2017-11-03 17:11 ` [PATCH 06/15] efi/libstub: disable clang LTO Sami Tolvanen
2017-11-03 20:10 ` Ard Biesheuvel
2017-11-03 17:11 ` [PATCH 06/15] efi/libstub: disable LTO Sami Tolvanen
2017-11-03 17:11 ` [PATCH 07/15] arm64: use -mno-implicit-float instead of -mgeneral-regs-only Sami Tolvanen
2017-11-03 17:50 ` Nick Desaulniers
2017-11-03 18:02 ` Mark Rutland
2017-11-03 18:20 ` Nick Desaulniers
2017-11-03 18:31 ` Mark Rutland
2017-11-03 18:52 ` Mark Rutland
2017-11-03 19:06 ` Kees Cook
2017-11-03 20:18 ` Sami Tolvanen
2017-11-03 17:11 ` [PATCH 08/15] arm64: don't pass -maarch64linux to GNU gold Sami Tolvanen
2017-11-03 20:41 ` Yury Norov
2017-11-06 16:56 ` Sami Tolvanen
2017-11-03 17:11 ` [PATCH 09/15] arm64: keep .altinstructions and .altinstr_replacement Sami Tolvanen
2017-11-03 18:40 ` Nick Desaulniers
2017-11-03 17:11 ` [PATCH 10/15] arm64: disable ARM64_ERRATUM_843419 for clang LTO Sami Tolvanen
2017-11-03 20:13 ` Ard Biesheuvel
2017-11-09 18:54 ` Sami Tolvanen
2017-11-03 17:11 ` [PATCH 11/15] arm64: explicitly pass --no-fix-cortex-a53-843419 to GNU gold Sami Tolvanen
2017-11-03 17:11 ` [PATCH 11/15] arm64: fix mrs_s/msr_s macros for clang LTO Sami Tolvanen
2017-11-03 17:11 ` [PATCH 12/15] arm64: add a workaround for GNU gold with ARM64_MODULE_PLTS Sami Tolvanen
2017-11-03 17:11 ` [PATCH 12/15] arm64: explicitly pass --no-fix-cortex-a53-843419 to GNU gold Sami Tolvanen
2017-11-03 17:12 ` [PATCH 13/15] arm64: add a workaround for GNU gold with ARM64_MODULE_PLTS Sami Tolvanen
2017-11-03 20:09 ` Ard Biesheuvel
2017-11-03 20:29 ` Sami Tolvanen
2017-11-03 17:12 ` [PATCH 13/15] arm64: fix mrs_s/msr_s macros for clang LTO Sami Tolvanen
2017-11-03 17:53 ` Nick Desaulniers
2017-11-03 18:06 ` Mark Rutland
2017-11-03 18:15 ` Nick Desaulniers
2017-11-03 18:38 ` Mark Rutland
2017-11-08 9:25 ` Yury Norov
2017-11-09 0:02 ` Andi Kleen
2017-11-09 4:48 ` Maxim Kuvyrkov
2017-11-09 16:51 ` Sami Tolvanen
2017-11-09 16:50 ` Sami Tolvanen
2017-11-09 16:45 ` Sami Tolvanen
2017-11-03 17:12 ` [PATCH 14/15] arm64: crypto: disable LTO for aes-ce-cipher.c Sami Tolvanen
2017-11-03 20:10 ` Ard Biesheuvel
2017-11-03 17:12 ` [PATCH 15/15] arm64: select ARCH_SUPPORTS_CLANG_LTO Sami Tolvanen
2017-11-03 17:51 ` [PATCH 00/15] Add support for clang LTO Mark Rutland
2017-11-03 18:07 ` Nick Desaulniers
2017-11-03 18:29 ` Mark Rutland
2017-11-03 18:36 ` Nick Desaulniers
2017-11-03 18:49 ` Mark Rutland
2017-11-03 18:07 ` Matthias Kaehlcke
2017-11-03 18:09 ` Mark Rutland
2017-11-03 18:11 ` Nick Desaulniers
2017-11-03 19:26 ` Mark Rutland
2017-11-03 19:56 ` Sami Tolvanen
2017-11-04 2:13 ` Mark Rutland
2017-11-09 10:54 ` AKASHI Takahiro [this message]
2017-11-09 11:03 ` Marc Zyngier
2017-11-09 16:31 ` Sami Tolvanen
2017-11-03 20:23 ` Ard Biesheuvel
2017-11-03 18:22 ` Sami Tolvanen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20171109105439.GA27630@linaro.org \
--to=takahiro.akashi@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).