From: samitolvanen@google.com (Sami Tolvanen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 10/15] arm64: disable ARM64_ERRATUM_843419 for clang LTO
Date: Fri, 3 Nov 2017 10:11:55 -0700 [thread overview]
Message-ID: <20171103171203.107569-12-samitolvanen@google.com> (raw)
In-Reply-To: <20171103171203.107569-1-samitolvanen@google.com>
CONFIG_CLANG_LTO depends on GNU gold, which can generate ADR_PREL_PG_HI21
relocations even with --fix-cortex-a53-843419.
Since ARM64_ERRATUM_843419 disables kernel support for these relocations,
disable the erratum when LTO is used.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
---
arch/arm64/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 0df64a6a56d4..43ccddb7c8ec 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -433,6 +433,7 @@ config ARM64_ERRATUM_845719
config ARM64_ERRATUM_843419
bool "Cortex-A53: 843419: A load or store might access an incorrect address"
+ depends on !CLANG_LTO
default y
select ARM64_MODULE_CMODEL_LARGE if MODULES
help
--
2.15.0.403.gc27cc4dac6-goog
next prev parent reply other threads:[~2017-11-03 17:11 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 ` Sami Tolvanen [this message]
2017-11-03 20:13 ` [PATCH 10/15] arm64: disable ARM64_ERRATUM_843419 for clang LTO 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
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
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