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| author | Alejandro Colomar <alx@kernel.org> | 2025-06-23 03:35:26 +0200 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2025-06-28 16:51:43 +0200 |
| commit | 453a8c3586ef3ec04886db5f41b9d0fc1fbddd18 (patch) | |
| tree | 8bb940515fc9f2c78fa078b718b9bbeda190b0dc | |
| parent | 4445a5dacb3b52c1ed2c735dd2908dbcd5f87505 (diff) | |
| download | man-pages-453a8c3586ef3ec04886db5f41b9d0fc1fbddd18.tar.gz | |
man/man3attr/gnu::aligned.3attr: Add page
Cc: Aaron Ballman <aaron@aaronballman.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
| -rw-r--r-- | man/man3attr/gnu::aligned.3attr | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/man/man3attr/gnu::aligned.3attr b/man/man3attr/gnu::aligned.3attr new file mode 100644 index 0000000000..1c424dda9b --- /dev/null +++ b/man/man3attr/gnu::aligned.3attr @@ -0,0 +1,51 @@ +.\" Copyright, the authors of the Linux man-pages project +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.TH gnu::aligned 3attr (date) "Linux man-pages (unreleased)" +.SH NAME +gnu::aligned \- set alignment of an object +.SH SYNOPSIS +.nf +.BI [[gnu::aligned( alignment )]] +.B [[gnu::aligned]] +.fi +.SH DESCRIPTION +This attribute can be applied to a type or a variable, +and sets its +.I alignment +in bytes. +.P +If the +.I alignment +is not specified, +the maximum alignment is used. +This is equivalent to +.P +.in +4n +.EX +[[gnu::aligned(alignof(max_align_t))]] +.EE +.in +.SH VERSIONS +.TP +.BI __attribute__((aligned( alignment ))) +.TP +.BI __declspec(align( alignment )) +.P +C11 provides the +.BR _Alignas () +type specifier, +which has similar semantics. +.SH STANDARDS +GNU. +.SH HISTORY +gcc, +g++, +clang 11, +clang++ 2.8.0. +.SH CAVEATS +This attribute can increase the natural alignment of a type, +but it can't decrease it. +.P +The linker may limit the maximum alignment that can be applied. |