From: Kees Cook <kees@kernel.org>
To: Rong Xu <xur@google.com>
Cc: Alice Ryhl <aliceryhl@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>, Bill Wendling <morbo@google.com>,
Borislav Petkov <bp@alien8.de>, Breno Leitao <leitao@debian.org>,
Brian Gerst <brgerst@gmail.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
David Li <davidxl@google.com>, Han Shen <shenhan@google.com>,
Heiko Carstens <hca@linux.ibm.com>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
Jann Horn <jannh@google.com>, Jonathan Corbet <corbet@lwn.net>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Juergen Gross <jgross@suse.com>,
Justin Stitt <justinstitt@google.com>,
Masahiro Yamada <masahiroy@kernel.org>,
"Mike Rapoport (IBM)" <rppt@kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Nicolas Schier <nicolas@fjasle.eu>,
"Paul E. McKenney" <paulmck@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Sami Tolvanen <samitolvanen@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
Wei Yang <richard.weiyang@gmail.com>,
workflows@vger.kernel.org,
Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
Maksim Panchenko <max4bolt@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Andreas Larsson <andreas@gaisler.com>,
Yonghong Song <yonghong.song@linux.dev>,
Yabin Cui <yabinc@google.com>,
Krzysztof Pszeniczny <kpszeniczny@google.com>,
Sriraman Tallam <tmsriram@google.com>,
Stephane Eranian <eranian@google.com>,
x86@kernel.org, linux-arch@vger.kernel.org,
sparclinux@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
llvm@lists.linux.dev
Subject: Re: [PATCH v6 5/7] AutoFDO: Enable -ffunction-sections for the AutoFDO build
Date: Mon, 28 Oct 2024 17:10:00 -0700 [thread overview]
Message-ID: <202410281709.DDFE98FA3@keescook> (raw)
In-Reply-To: <20241026051410.2819338-6-xur@google.com>
On Fri, Oct 25, 2024 at 10:14:07PM -0700, Rong Xu wrote:
> Enable -ffunction-sections by default for the AutoFDO build.
>
> With -ffunction-sections, the compiler places each function in its own
> section named .text.function_name instead of placing all functions in
> the .text section. In the AutoFDO build, this allows the linker to
> utilize profile information to reorganize functions for improved
> utilization of iCache and iTLB.
>
> Co-developed-by: Han Shen <shenhan@google.com>
> Signed-off-by: Han Shen <shenhan@google.com>
Reviewed-by: Kees Cook <kees@kernel.org>
--
Kees Cook
next prev parent reply other threads:[~2024-10-29 0:10 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-26 5:14 [PATCH v6 0/7] Add AutoFDO and Propeller support for Clang build Rong Xu
2024-10-26 5:14 ` [PATCH v6 1/7] Add AutoFDO " Rong Xu
2024-10-29 0:08 ` Kees Cook
2024-10-26 5:14 ` [PATCH v6 2/7] objtool: Fix unreachable instruction warnings for weak functions Rong Xu
2024-10-29 0:16 ` Kees Cook
2024-10-29 0:18 ` H. Peter Anvin
2024-10-29 5:51 ` Rong Xu
2024-10-29 0:43 ` Josh Poimboeuf
2024-10-26 5:14 ` [PATCH v6 3/7] Adjust symbol ordering in text output section Rong Xu
2024-10-29 0:05 ` Kees Cook
2024-11-01 18:05 ` Masahiro Yamada
2024-11-01 18:37 ` Rong Xu
2024-11-01 22:03 ` Masahiro Yamada
2024-11-09 15:38 ` Klara Modin
2024-11-11 20:43 ` Rong Xu
2024-11-11 21:32 ` Klara Modin
2024-11-11 22:39 ` Rong Xu
2024-11-12 5:38 ` Rong Xu
2024-11-12 7:45 ` Klara Modin
2024-11-12 20:13 ` Rong Xu
2024-10-26 5:14 ` [PATCH v6 4/7] Add markers for text_unlikely and text_hot sections Rong Xu
2024-10-28 23:56 ` Kees Cook
2024-10-29 0:05 ` Kees Cook
2024-10-26 5:14 ` [PATCH v6 5/7] AutoFDO: Enable -ffunction-sections for the AutoFDO build Rong Xu
2024-10-29 0:10 ` Kees Cook [this message]
2024-10-26 5:14 ` [PATCH v6 6/7] AutoFDO: Enable machine function split optimization for AutoFDO Rong Xu
2024-10-29 0:13 ` Kees Cook
2024-10-26 5:14 ` [PATCH v6 7/7] Add Propeller configuration for kernel build Rong Xu
2024-10-29 0:14 ` Kees Cook
2024-10-27 22:17 ` [PATCH v6 0/7] Add AutoFDO and Propeller support for Clang build Nathan Chancellor
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