linux-kernel - [RFC PATCH 02/28] Documentation: Bump minimum GCC version to 8.1

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Message-ID: <20240925150059.3955569-32-ardb+git@google.com>
Date: Wed, 25 Sep 2024 17:01:02 +0200
From: Ard Biesheuvel <ardb+git@...gle.com>
To: linux-kernel@...r.kernel.org
Cc: Ard Biesheuvel <ardb@...nel.org>, x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>, 
	Andy Lutomirski <luto@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Uros Bizjak <ubizjak@...il.com>, 
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	llvm@...ts.linux.dev
Subject: [RFC PATCH 02/28] Documentation: Bump minimum GCC version to 8.1

From: Ard Biesheuvel <ardb@...nel.org>

Bump the minimum GCC version to 8.1 to gain unconditional support for
referring to the per-task stack cookie using a symbol rather than
relying on the fixed offset of 40 bytes from %GS, which requires
elaborate hacks to support.

Signed-off-by: Ard Biesheuvel <ardb@...nel.org>
---
 Documentation/admin-guide/README.rst | 2 +-
 Documentation/process/changes.rst    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/admin-guide/README.rst b/Documentation/admin-guide/README.rst
index f2bebff6a733..3dda41923ed6 100644
--- a/Documentation/admin-guide/README.rst
+++ b/Documentation/admin-guide/README.rst
@@ -259,7 +259,7 @@ Configuring the kernel
 Compiling the kernel
 --------------------
 
- - Make sure you have at least gcc 5.1 available.
+ - Make sure you have at least gcc 8.1 available.
    For more information, refer to :ref:`Documentation/process/changes.rst <changes>`.
 
  - Do a ``make`` to create a compressed kernel image. It is also possible to do
diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index 00f1ed7c59c3..59b7d3d8a577 100644
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@@ -29,7 +29,7 @@ you probably needn't concern yourself with pcmciautils.
 ====================== ===============  ========================================
         Program        Minimal version       Command to check the version
 ====================== ===============  ========================================
-GNU C                  5.1              gcc --version
+GNU C                  8.1              gcc --version
 Clang/LLVM (optional)  13.0.1           clang --version
 Rust (optional)        1.78.0           rustc --version
 bindgen (optional)     0.65.1           bindgen --version
-- 
2.46.0.792.g87dc391469-goog