<html lang="en"> <head> <title>ARM-Relocations - Using as</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="Using as"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="up" href="ARM-Syntax.html#ARM-Syntax" title="ARM Syntax"> <link rel="prev" href="ARM_002dRegs.html#ARM_002dRegs" title="ARM-Regs"> <link rel="next" href="ARM_002dNeon_002dAlignment.html#ARM_002dNeon_002dAlignment" title="ARM-Neon-Alignment"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <!-- This file documents the GNU Assembler "as". Copyright (C) 1991-2015 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 no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled ``GNU Free Documentation License''. --> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } --></style> </head> <body> <div class="node"> <a name="ARM-Relocations"></a> <a name="ARM_002dRelocations"></a> <p> Next: <a rel="next" accesskey="n" href="ARM_002dNeon_002dAlignment.html#ARM_002dNeon_002dAlignment">ARM-Neon-Alignment</a>, Previous: <a rel="previous" accesskey="p" href="ARM_002dRegs.html#ARM_002dRegs">ARM-Regs</a>, Up: <a rel="up" accesskey="u" href="ARM-Syntax.html#ARM-Syntax">ARM Syntax</a> <hr> </div> <h5 class="subsubsection">9.4.2.4 ARM relocation generation</h5> <p><a name="index-data-relocations_002c-ARM-723"></a><a name="index-ARM-data-relocations-724"></a>Specific data relocations can be generated by putting the relocation name in parentheses after the symbol name. For example: <pre class="smallexample"> .word foo(TARGET1) </pre> <p>This will generate an ‘<samp><span class="samp">R_ARM_TARGET1</span></samp>’ relocation against the symbol <var>foo</var>. The following relocations are supported: <code>GOT</code>, <code>GOTOFF</code>, <code>TARGET1</code>, <code>TARGET2</code>, <code>SBREL</code>, <code>TLSGD</code>, <code>TLSLDM</code>, <code>TLSLDO</code>, <code>TLSDESC</code>, <code>TLSCALL</code>, <code>GOTTPOFF</code>, <code>GOT_PREL</code> and <code>TPOFF</code>. <p>For compatibility with older toolchains the assembler also accepts <code>(PLT)</code> after branch targets. On legacy targets this will generate the deprecated ‘<samp><span class="samp">R_ARM_PLT32</span></samp>’ relocation. On EABI targets it will encode either the ‘<samp><span class="samp">R_ARM_CALL</span></samp>’ or ‘<samp><span class="samp">R_ARM_JUMP24</span></samp>’ relocation, as appropriate. <p><a name="index-MOVW-and-MOVT-relocations_002c-ARM-725"></a>Relocations for ‘<samp><span class="samp">MOVW</span></samp>’ and ‘<samp><span class="samp">MOVT</span></samp>’ instructions can be generated by prefixing the value with ‘<samp><span class="samp">#:lower16:</span></samp>’ and ‘<samp><span class="samp">#:upper16</span></samp>’ respectively. For example to load the 32-bit address of foo into r0: <pre class="smallexample"> MOVW r0, #:lower16:foo MOVT r0, #:upper16:foo </pre> </body></html>