All of lore.kernel.org
 help / color / mirror / Atom feed
From: Sami Tolvanen <samitolvanen@google.com>
To: Masahiro Yamada <masahiroy@kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Will Deacon <will@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	Kees Cook <keescook@chromium.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	clang-built-linux@googlegroups.com,
	kernel-hardening@lists.openwall.com, linux-arch@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-pci@vger.kernel.org,
	Sami Tolvanen <samitolvanen@google.com>
Subject: [PATCH v8 16/16] arm64: allow LTO to be selected
Date: Tue,  1 Dec 2020 13:37:07 -0800	[thread overview]
Message-ID: <20201201213707.541432-17-samitolvanen@google.com> (raw)
In-Reply-To: <20201201213707.541432-1-samitolvanen@google.com>

Allow CONFIG_LTO_CLANG to be enabled.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Will Deacon <will@kernel.org>
---
 arch/arm64/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c7f07978f5b6..9d29c48ecd4f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -73,6 +73,8 @@ config ARM64
 	select ARCH_USE_SYM_ANNOTATIONS
 	select ARCH_SUPPORTS_MEMORY_FAILURE
 	select ARCH_SUPPORTS_SHADOW_CALL_STACK if CC_HAVE_SHADOW_CALL_STACK
+	select ARCH_SUPPORTS_LTO_CLANG
+	select ARCH_SUPPORTS_LTO_CLANG_THIN
 	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && (GCC_VERSION >= 50000 || CC_IS_CLANG)
 	select ARCH_SUPPORTS_NUMA_BALANCING
-- 
2.29.2.576.ga3fc446d84-goog


WARNING: multiple messages have this Message-ID (diff)
From: Sami Tolvanen <samitolvanen@google.com>
To: Masahiro Yamada <masahiroy@kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Will Deacon <will@kernel.org>
Cc: linux-arch@vger.kernel.org, Kees Cook <keescook@chromium.org>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	kernel-hardening@lists.openwall.com,
	Peter Zijlstra <peterz@infradead.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-kbuild@vger.kernel.org,
	Nick Desaulniers <ndesaulniers@google.com>,
	linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
	clang-built-linux@googlegroups.com,
	Sami Tolvanen <samitolvanen@google.com>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v8 16/16] arm64: allow LTO to be selected
Date: Tue,  1 Dec 2020 13:37:07 -0800	[thread overview]
Message-ID: <20201201213707.541432-17-samitolvanen@google.com> (raw)
In-Reply-To: <20201201213707.541432-1-samitolvanen@google.com>

Allow CONFIG_LTO_CLANG to be enabled.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Will Deacon <will@kernel.org>
---
 arch/arm64/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c7f07978f5b6..9d29c48ecd4f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -73,6 +73,8 @@ config ARM64
 	select ARCH_USE_SYM_ANNOTATIONS
 	select ARCH_SUPPORTS_MEMORY_FAILURE
 	select ARCH_SUPPORTS_SHADOW_CALL_STACK if CC_HAVE_SHADOW_CALL_STACK
+	select ARCH_SUPPORTS_LTO_CLANG
+	select ARCH_SUPPORTS_LTO_CLANG_THIN
 	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && (GCC_VERSION >= 50000 || CC_IS_CLANG)
 	select ARCH_SUPPORTS_NUMA_BALANCING
-- 
2.29.2.576.ga3fc446d84-goog


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2020-12-01 21:40 UTC|newest]

Thread overview: 141+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-01 21:36 [PATCH v8 00/16] Add support for Clang LTO Sami Tolvanen
2020-12-01 21:36 ` Sami Tolvanen
2020-12-01 21:36 ` Sami Tolvanen
2020-12-01 21:36 ` [PATCH v8 01/16] tracing: move function tracer options to Kconfig Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:47   ` Steven Rostedt
2020-12-01 21:47     ` Steven Rostedt
2020-12-01 21:36 ` [PATCH v8 02/16] kbuild: add support for Clang LTO Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-02  2:59   ` Masahiro Yamada
2020-12-02  2:59     ` Masahiro Yamada
2020-12-03  0:07   ` Nick Desaulniers
2020-12-03  0:07     ` Nick Desaulniers
2020-12-03  0:07     ` Nick Desaulniers
2020-12-01 21:36 ` [PATCH v8 03/16] kbuild: lto: fix module versioning Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36 ` [PATCH v8 04/16] kbuild: lto: limit inlining Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36 ` [PATCH v8 05/16] kbuild: lto: merge module sections Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36 ` [PATCH v8 06/16] kbuild: lto: remove duplicate dependencies from .mod files Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36 ` [PATCH v8 07/16] init: lto: ensure initcall ordering Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36 ` [PATCH v8 08/16] init: lto: fix PREL32 relocations Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:36   ` Sami Tolvanen
2020-12-01 21:37 ` [PATCH v8 09/16] PCI: Fix PREL32 relocations for LTO Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37 ` [PATCH v8 10/16] modpost: lto: strip .lto from module names Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37 ` [PATCH v8 11/16] scripts/mod: disable LTO for empty.c Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37 ` [PATCH v8 12/16] efi/libstub: disable LTO Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37 ` [PATCH v8 13/16] drivers/misc/lkdtm: disable LTO for rodata.o Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37 ` [PATCH v8 14/16] arm64: vdso: disable LTO Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37 ` [PATCH v8 15/16] arm64: disable recordmcount with DYNAMIC_FTRACE_WITH_REGS Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-01 21:37 ` Sami Tolvanen [this message]
2020-12-01 21:37   ` [PATCH v8 16/16] arm64: allow LTO to be selected Sami Tolvanen
2020-12-01 21:37   ` Sami Tolvanen
2020-12-03  0:01 ` [PATCH v8 00/16] Add support for Clang LTO Nick Desaulniers
2020-12-03  0:01   ` Nick Desaulniers
2020-12-03  0:01   ` Nick Desaulniers
2020-12-03 11:26 ` Will Deacon
2020-12-03 11:26   ` Will Deacon
2020-12-03 17:07   ` Sami Tolvanen
2020-12-03 17:07     ` Sami Tolvanen
2020-12-03 17:07     ` Sami Tolvanen
2020-12-03 18:21     ` Nathan Chancellor
2020-12-03 18:21       ` Nathan Chancellor
2020-12-03 18:22     ` Will Deacon
2020-12-03 18:22       ` Will Deacon
2020-12-03 22:32       ` Nick Desaulniers
2020-12-03 22:32         ` Nick Desaulniers
2020-12-03 22:32         ` Nick Desaulniers
2020-12-04  9:35         ` Will Deacon
2020-12-04  9:35           ` Will Deacon
2020-12-04 22:52         ` Sami Tolvanen
2020-12-04 22:52           ` Sami Tolvanen
2020-12-04 22:52           ` Sami Tolvanen
2020-12-06  6:50           ` Nathan Chancellor
2020-12-06  6:50             ` Nathan Chancellor
2020-12-06 20:09             ` Sami Tolvanen
2020-12-06 20:09               ` Sami Tolvanen
2020-12-06 20:09               ` Sami Tolvanen
2020-12-08  0:46               ` Nathan Chancellor
2020-12-08  0:46                 ` Nathan Chancellor
2020-12-08 12:15 ` Arnd Bergmann
2020-12-08 12:15   ` Arnd Bergmann
2020-12-08 12:15   ` Arnd Bergmann
2020-12-08 13:54   ` Arnd Bergmann
2020-12-08 13:54     ` Arnd Bergmann
2020-12-08 13:54     ` Arnd Bergmann
2020-12-08 16:53     ` Sami Tolvanen
2020-12-08 16:53       ` Sami Tolvanen
2020-12-08 16:53       ` Sami Tolvanen
2020-12-08 16:56       ` Arnd Bergmann
2020-12-08 16:56         ` Arnd Bergmann
2020-12-08 16:56         ` Arnd Bergmann
2020-12-08 16:43   ` Sami Tolvanen
2020-12-08 16:43     ` Sami Tolvanen
2020-12-08 16:43     ` Sami Tolvanen
2020-12-08 20:59     ` Arnd Bergmann
2020-12-08 20:59       ` Arnd Bergmann
2020-12-08 21:02       ` Arnd Bergmann
2020-12-08 21:02         ` Arnd Bergmann
2020-12-09  5:23         ` Fāng-ruì Sòng
2020-12-09  5:23           ` Fāng-ruì Sòng
2020-12-09  5:23           ` Fāng-ruì Sòng
2020-12-09  9:07           ` Arnd Bergmann
2020-12-09  9:07             ` Arnd Bergmann
2020-12-09  9:07             ` Arnd Bergmann
2020-12-09  9:59         ` Arnd Bergmann
2020-12-09  9:59           ` Arnd Bergmann
2020-12-09 16:09         ` Sami Tolvanen
2020-12-09 16:09           ` Sami Tolvanen
2020-12-09 16:09           ` Sami Tolvanen
2020-12-09 19:24           ` Arnd Bergmann
2020-12-09 19:24             ` Arnd Bergmann
2020-12-09 19:24             ` Arnd Bergmann
2020-12-08 21:09       ` Nick Desaulniers
2020-12-08 21:09         ` Nick Desaulniers
2020-12-08 21:09         ` Nick Desaulniers
2020-12-08 22:20         ` Arnd Bergmann
2020-12-08 22:20           ` Arnd Bergmann
2020-12-08 22:20           ` Arnd Bergmann
2020-12-09 16:11           ` Sami Tolvanen
2020-12-09 16:11             ` Sami Tolvanen
2020-12-09 16:11             ` Sami Tolvanen
2020-12-09  4:55     ` Fangrui Song
2020-12-09  4:55       ` Fangrui Song
2020-12-09  9:19       ` Arnd Bergmann
2020-12-09  9:19         ` Arnd Bergmann
2020-12-09  9:19         ` Arnd Bergmann
2020-12-09 12:35   ` Arnd Bergmann
2020-12-09 12:35     ` Arnd Bergmann
2020-12-09 12:35     ` Arnd Bergmann
2020-12-09 16:25     ` Sami Tolvanen
2020-12-09 16:25       ` Sami Tolvanen
2020-12-09 16:25       ` Sami Tolvanen
2020-12-09 17:51       ` Arnd Bergmann
2020-12-09 17:51         ` Arnd Bergmann
2020-12-09 17:51         ` Arnd Bergmann

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=20201201213707.541432-17-samitolvanen@google.com \
    --to=samitolvanen@google.com \
    --cc=clang-built-linux@googlegroups.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=jpoimboe@redhat.com \
    --cc=keescook@chromium.org \
    --cc=kernel-hardening@lists.openwall.com \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kbuild@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=masahiroy@kernel.org \
    --cc=ndesaulniers@google.com \
    --cc=paulmck@kernel.org \
    --cc=peterz@infradead.org \
    --cc=rostedt@goodmis.org \
    --cc=will@kernel.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.