diff options
Diffstat (limited to 'share/doc/gcc/ARM-ARMv8_002dM-Security-Extensions.html')
| -rw-r--r-- | share/doc/gcc/ARM-ARMv8_002dM-Security-Extensions.html | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/share/doc/gcc/ARM-ARMv8_002dM-Security-Extensions.html b/share/doc/gcc/ARM-ARMv8_002dM-Security-Extensions.html new file mode 100644 index 0000000..ddb3abb --- /dev/null +++ b/share/doc/gcc/ARM-ARMv8_002dM-Security-Extensions.html @@ -0,0 +1,112 @@ +<!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): ARM ARMv8-M Security Extensions</title> + +<meta name="description" content="Using the GNU Compiler Collection (GCC): ARM ARMv8-M Security Extensions"> +<meta name="keywords" content="Using the GNU Compiler Collection (GCC): ARM ARMv8-M Security Extensions"> +<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="Target-Builtins.html#Target-Builtins" rel="up" title="Target Builtins"> +<link href="AVR-Built_002din-Functions.html#AVR-Built_002din-Functions" rel="next" title="AVR Built-in Functions"> +<link href="ARM-Floating-Point-Status-and-Control-Intrinsics.html#ARM-Floating-Point-Status-and-Control-Intrinsics" rel="previous" title="ARM Floating Point Status and Control Intrinsics"> +<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="ARM-ARMv8_002dM-Security-Extensions"></a> +<div class="header"> +<p> +Next: <a href="AVR-Built_002din-Functions.html#AVR-Built_002din-Functions" accesskey="n" rel="next">AVR Built-in Functions</a>, Previous: <a href="ARM-Floating-Point-Status-and-Control-Intrinsics.html#ARM-Floating-Point-Status-and-Control-Intrinsics" accesskey="p" rel="previous">ARM Floating Point Status and Control Intrinsics</a>, Up: <a href="Target-Builtins.html#Target-Builtins" accesskey="u" rel="up">Target Builtins</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="ARM-ARMv8_002dM-Security-Extensions-1"></a> +<h4 class="subsection">6.60.9 ARM ARMv8-M Security Extensions</h4> + +<p>GCC implements the ARMv8-M Security Extensions as described in the ARMv8-M +Security Extensions: Requirements on Development Tools Engineering +Specification, which can be found at +<a href="https://developer.arm.com/documentation/ecm0359818/latest/">https://developer.arm.com/documentation/ecm0359818/latest/</a>. +</p> +<p>As part of the Security Extensions GCC implements two new function attributes: +<code>cmse_nonsecure_entry</code> and <code>cmse_nonsecure_call</code>. +</p> +<p>As part of the Security Extensions GCC implements the intrinsics below. FPTR +is used here to mean any function pointer type. +</p> +<div class="smallexample"> +<pre class="smallexample">cmse_address_info_t cmse_TT (void *); +cmse_address_info_t cmse_TT_fptr (FPTR); +cmse_address_info_t cmse_TTT (void *); +cmse_address_info_t cmse_TTT_fptr (FPTR); +cmse_address_info_t cmse_TTA (void *); +cmse_address_info_t cmse_TTA_fptr (FPTR); +cmse_address_info_t cmse_TTAT (void *); +cmse_address_info_t cmse_TTAT_fptr (FPTR); +void * cmse_check_address_range (void *, size_t, int); +typeof(p) cmse_nsfptr_create (FPTR p); +intptr_t cmse_is_nsfptr (FPTR); +int cmse_nonsecure_caller (void); +</pre></div> + + + + +</body> +</html> |