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| author | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
|---|---|---|
| committer | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
| commit | abdaadbcae30fe0c9a66c7516798279fdfd97750 (patch) | |
| tree | 00a54a6e25601e43876d03c1a4a12a749d4a914c /share/doc/gcc/eBPF-Options.html | |
https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads
Change-Id: I7303388733328cd98ab9aa3c30236db67f2e9e9c
Diffstat (limited to 'share/doc/gcc/eBPF-Options.html')
| -rw-r--r-- | share/doc/gcc/eBPF-Options.html | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/share/doc/gcc/eBPF-Options.html b/share/doc/gcc/eBPF-Options.html new file mode 100644 index 0000000..b436cf6 --- /dev/null +++ b/share/doc/gcc/eBPF-Options.html @@ -0,0 +1,189 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- This file documents the use of the GNU compilers. + +Copyright (C) 1988-2023 Free Software Foundation, Inc. + +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License, Version 1.3 or +any later version published by the Free Software Foundation; with the +Invariant Sections being "Funding Free Software", the Front-Cover +Texts being (a) (see below), and with the Back-Cover Texts being (b) +(see below). A copy of the license is included in the section entitled +"GNU Free Documentation License". + +(a) The FSF's Front-Cover Text is: + +A GNU Manual + +(b) The FSF's Back-Cover Text is: + +You have freedom to copy and modify this GNU Manual, like GNU + software. Copies published by the Free Software Foundation raise + funds for GNU development. --> +<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> +<head> +<title>Using the GNU Compiler Collection (GCC): eBPF Options</title> + +<meta name="description" content="Using the GNU Compiler Collection (GCC): eBPF Options"> +<meta name="keywords" content="Using the GNU Compiler Collection (GCC): eBPF Options"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="makeinfo"> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<link href="index.html#Top" rel="start" title="Top"> +<link href="Indices.html#Indices" rel="index" title="Indices"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="Submodel-Options.html#Submodel-Options" rel="up" title="Submodel Options"> +<link href="FR30-Options.html#FR30-Options" rel="next" title="FR30 Options"> +<link href="DEC-Alpha-Options.html#DEC-Alpha-Options" rel="previous" title="DEC Alpha Options"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +blockquote.smallquotation {font-size: smaller} +div.display {margin-left: 3.2em} +div.example {margin-left: 3.2em} +div.indentedblock {margin-left: 3.2em} +div.lisp {margin-left: 3.2em} +div.smalldisplay {margin-left: 3.2em} +div.smallexample {margin-left: 3.2em} +div.smallindentedblock {margin-left: 3.2em; font-size: smaller} +div.smalllisp {margin-left: 3.2em} +kbd {font-style:oblique} +pre.display {font-family: inherit} +pre.format {font-family: inherit} +pre.menu-comment {font-family: serif} +pre.menu-preformatted {font-family: serif} +pre.smalldisplay {font-family: inherit; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: inherit; font-size: smaller} +pre.smalllisp {font-size: smaller} +span.nocodebreak {white-space:nowrap} +span.nolinebreak {white-space:nowrap} +span.roman {font-family:serif; font-weight:normal} +span.sansserif {font-family:sans-serif; font-weight:normal} +ul.no-bullet {list-style: none} +--> +</style> + + +</head> + +<body lang="en_US" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> +<a name="eBPF-Options"></a> +<div class="header"> +<p> +Next: <a href="FR30-Options.html#FR30-Options" accesskey="n" rel="next">FR30 Options</a>, Previous: <a href="DEC-Alpha-Options.html#DEC-Alpha-Options" accesskey="p" rel="previous">DEC Alpha Options</a>, Up: <a href="Submodel-Options.html#Submodel-Options" accesskey="u" rel="up">Submodel Options</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p> +</div> +<hr> +<a name="eBPF-Options-1"></a> +<h4 class="subsection">3.19.13 eBPF Options</h4> +<a name="index-eBPF-Options"></a> + +<dl compact="compact"> +<dt><code>-mframe-limit=<var>bytes</var></code></dt> +<dd><p>This specifies the hard limit for frame sizes, in bytes. Currently, +the value that can be specified should be less than or equal to +‘<samp>32767</samp>’. Defaults to whatever limit is imposed by the version of +the Linux kernel targeted. +</p> +<a name="index-mkernel-1"></a> +</dd> +<dt><code>-mkernel=<var>version</var></code></dt> +<dd><p>This specifies the minimum version of the kernel that will run the +compiled program. GCC uses this version to determine which +instructions to use, what kernel helpers to allow, etc. Currently, +<var>version</var> can be one of ‘<samp>4.0</samp>’, ‘<samp>4.1</samp>’, ‘<samp>4.2</samp>’, +‘<samp>4.3</samp>’, ‘<samp>4.4</samp>’, ‘<samp>4.5</samp>’, ‘<samp>4.6</samp>’, ‘<samp>4.7</samp>’, +‘<samp>4.8</samp>’, ‘<samp>4.9</samp>’, ‘<samp>4.10</samp>’, ‘<samp>4.11</samp>’, ‘<samp>4.12</samp>’, +‘<samp>4.13</samp>’, ‘<samp>4.14</samp>’, ‘<samp>4.15</samp>’, ‘<samp>4.16</samp>’, ‘<samp>4.17</samp>’, +‘<samp>4.18</samp>’, ‘<samp>4.19</samp>’, ‘<samp>4.20</samp>’, ‘<samp>5.0</samp>’, ‘<samp>5.1</samp>’, +‘<samp>5.2</samp>’, ‘<samp>latest</samp>’ and ‘<samp>native</samp>’. +</p> +<a name="index-mbig_002dendian-5"></a> +</dd> +<dt><code>-mbig-endian</code></dt> +<dd><p>Generate code for a big-endian target. +</p> +<a name="index-mlittle_002dendian-5"></a> +</dd> +<dt><code>-mlittle-endian</code></dt> +<dd><p>Generate code for a little-endian target. This is the default. +</p> +<a name="index-mjmpext"></a> +</dd> +<dt><code>-mjmpext</code></dt> +<dd><p>Enable generation of extra conditional-branch instructions. +Enabled for CPU v2 and above. +</p> +<a name="index-mjmp32"></a> +</dd> +<dt><code>-mjmp32</code></dt> +<dd><p>Enable 32-bit jump instructions. Enabled for CPU v3 and above. +</p> +<a name="index-malu32"></a> +</dd> +<dt><code>-malu32</code></dt> +<dd><p>Enable 32-bit ALU instructions. Enabled for CPU v3 and above. +</p> +<a name="index-mcpu-5"></a> +</dd> +<dt><code>-mcpu=<var>version</var></code></dt> +<dd><p>This specifies which version of the eBPF ISA to target. Newer versions +may not be supported by all kernels. The default is ‘<samp>v3</samp>’. +</p> +<p>Supported values for <var>version</var> are: +</p> +<dl compact="compact"> +<dt>‘<samp>v1</samp>’</dt> +<dd><p>The first stable eBPF ISA with no special features or extensions. +</p> +</dd> +<dt>‘<samp>v2</samp>’</dt> +<dd><p>Supports the jump extensions, as in <samp>-mjmpext</samp>. +</p> +</dd> +<dt>‘<samp>v3</samp>’</dt> +<dd><p>All features of v2, plus: +</p><ul class="no-bullet"> +<li>- 32-bit jump operations, as in <samp>-mjmp32</samp> +</li><li>- 32-bit ALU operations, as in <samp>-malu32</samp> +</li></ul> + +</dd> +</dl> + +<a name="index-mco_002dre"></a> +</dd> +<dt><code>-mco-re</code></dt> +<dd><p>Enable BPF Compile Once - Run Everywhere (CO-RE) support. Requires and +is implied by <samp>-gbtf</samp>. +</p> +<a name="index-mno_002dco_002dre"></a> +</dd> +<dt><code>-mno-co-re</code></dt> +<dd><p>Disable BPF Compile Once - Run Everywhere (CO-RE) support. BPF CO-RE +support is enabled by default when generating BTF debug information for +the BPF target. +</p> +</dd> +<dt><code>-mxbpf</code></dt> +<dd><p>Generate code for an expanded version of BPF, which relaxes some of +the restrictions imposed by the BPF architecture: +</p><ul class="no-bullet"> +<li>- Save and restore callee-saved registers at function entry and +exit, respectively. +</li></ul> +</dd> +</dl> + +<hr> +<div class="header"> +<p> +Next: <a href="FR30-Options.html#FR30-Options" accesskey="n" rel="next">FR30 Options</a>, Previous: <a href="DEC-Alpha-Options.html#DEC-Alpha-Options" accesskey="p" rel="previous">DEC Alpha Options</a>, Up: <a href="Submodel-Options.html#Submodel-Options" accesskey="u" rel="up">Submodel Options</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p> +</div> + + + +</body> +</html> |