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<td width="10%" class="headerItem">Current view:</td>
<td width="35%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">libfdt</a> - fdt.c<span style="font-size: 80%;"> (source / <a href="fdt.c.func-sort-c.html">functions</a>)</span></td>
<td width="5%"></td>
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<td class="headerValue">skiboot.info</td>
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<td class="headerItem">Lines:</td>
<td class="headerCovTableEntry">94</td>
<td class="headerCovTableEntry">186</td>
<td class="headerCovTableEntryLo">50.5 %</td>
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<td class="headerItem">Date:</td>
<td class="headerValue">2022-06-13 14:57:12</td>
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<td class="headerItem">Functions:</td>
<td class="headerCovTableEntry">10</td>
<td class="headerCovTableEntry">15</td>
<td class="headerCovTableEntryLo">66.7 %</td>
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<pre class="sourceHeading"> Branch data Line data Source code</pre>
<pre class="source">
<a name="1"><span class="lineNum"> 1 </span> : : // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)</a>
<a name="2"><span class="lineNum"> 2 </span> : : /*</a>
<a name="3"><span class="lineNum"> 3 </span> : : * libfdt - Flat Device Tree manipulation</a>
<a name="4"><span class="lineNum"> 4 </span> : : * Copyright (C) 2006 David Gibson, IBM Corporation.</a>
<a name="5"><span class="lineNum"> 5 </span> : : */</a>
<a name="6"><span class="lineNum"> 6 </span> : : #include "libfdt_env.h"</a>
<a name="7"><span class="lineNum"> 7 </span> : : </a>
<a name="8"><span class="lineNum"> 8 </span> : : #include <fdt.h></a>
<a name="9"><span class="lineNum"> 9 </span> : : #include <libfdt.h></a>
<a name="10"><span class="lineNum"> 10 </span> : : </a>
<a name="11"><span class="lineNum"> 11 </span> : : #include "libfdt_internal.h"</a>
<a name="12"><span class="lineNum"> 12 </span> : : </a>
<a name="13"><span class="lineNum"> 13 </span> : : /*</a>
<a name="14"><span class="lineNum"> 14 </span> : : * Minimal sanity check for a read-only tree. fdt_ro_probe_() checks</a>
<a name="15"><span class="lineNum"> 15 </span> : : * that the given buffer contains what appears to be a flattened</a>
<a name="16"><span class="lineNum"> 16 </span> : : * device tree with sane information in its header.</a>
<a name="17"><span class="lineNum"> 17 </span> : : */</a>
<a name="18"><span class="lineNum"> 18 </span> :<span class="lineCov"> 45 : int32_t fdt_ro_probe_(const void *fdt)</span></a>
<a name="19"><span class="lineNum"> 19 </span> : : {</a>
<a name="20"><span class="lineNum"> 20 </span> :<span class="lineCov"> 45 : uint32_t totalsize = fdt_totalsize(fdt);</span></a>
<a name="21"><span class="lineNum"> 21 </span> : : </a>
<a name="22"><span class="lineNum"> 22 </span> :<span class="lineCov"> 45 : if (can_assume(VALID_DTB))</span></a>
<a name="23"><span class="lineNum"> 23 </span> :<span class="lineNoCov"> 0 : return totalsize;</span></a>
<a name="24"><span class="lineNum"> 24 </span> : : </a>
<a name="25"><span class="lineNum"> 25 </span> : : /* The device tree must be at an 8-byte aligned address */</a>
<a name="26"><span class="lineNum"> 26 </span> :<span class="lineCov"> 45 : if ((uintptr_t)fdt & 7)</span></a>
<a name="27"><span class="lineNum"> 27 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_ALIGNMENT;</span></a>
<a name="28"><span class="lineNum"> 28 </span> : : </a>
<a name="29"><span class="lineNum"> 29 </span> :<span class="lineCov"> 45 : if (fdt_magic(fdt) == FDT_MAGIC) {</span></a>
<a name="30"><span class="lineNum"> 30 </span> : : /* Complete tree */</a>
<a name="31"><span class="lineNum"> 31 </span> :<span class="lineCov"> 45 : if (!can_assume(LATEST)) {</span></a>
<a name="32"><span class="lineNum"> 32 </span> :<span class="lineCov"> 45 : if (fdt_version(fdt) < FDT_FIRST_SUPPORTED_VERSION)</span></a>
<a name="33"><span class="lineNum"> 33 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_BADVERSION;</span></a>
<a name="34"><span class="lineNum"> 34 </span> :<span class="lineCov"> 45 : if (fdt_last_comp_version(fdt) ></span></a>
<a name="35"><span class="lineNum"> 35 </span> : : FDT_LAST_SUPPORTED_VERSION)</a>
<a name="36"><span class="lineNum"> 36 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_BADVERSION;</span></a>
<a name="37"><span class="lineNum"> 37 </span> : : }</a>
<a name="38"><span class="lineNum"> 38 </span> :<span class="lineNoCov"> 0 : } else if (fdt_magic(fdt) == FDT_SW_MAGIC) {</span></a>
<a name="39"><span class="lineNum"> 39 </span> : : /* Unfinished sequential-write blob */</a>
<a name="40"><span class="lineNum"> 40 </span> :<span class="lineNoCov"> 0 : if (!can_assume(VALID_INPUT) && fdt_size_dt_struct(fdt) == 0)</span></a>
<a name="41"><span class="lineNum"> 41 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_BADSTATE;</span></a>
<a name="42"><span class="lineNum"> 42 </span> : : } else {</a>
<a name="43"><span class="lineNum"> 43 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_BADMAGIC;</span></a>
<a name="44"><span class="lineNum"> 44 </span> : : }</a>
<a name="45"><span class="lineNum"> 45 </span> : : </a>
<a name="46"><span class="lineNum"> 46 </span> :<span class="lineCov"> 45 : if (totalsize < INT32_MAX)</span></a>
<a name="47"><span class="lineNum"> 47 </span> :<span class="lineCov"> 45 : return totalsize;</span></a>
<a name="48"><span class="lineNum"> 48 </span> : : else</a>
<a name="49"><span class="lineNum"> 49 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_TRUNCATED;</span></a>
<a name="50"><span class="lineNum"> 50 </span> : : }</a>
<a name="51"><span class="lineNum"> 51 </span> : : </a>
<a name="52"><span class="lineNum"> 52 </span> :<span class="lineCov"> 55 : static int check_off_(uint32_t hdrsize, uint32_t totalsize, uint32_t off)</span></a>
<a name="53"><span class="lineNum"> 53 </span> : : {</a>
<a name="54"><span class="lineNum"> 54 </span> :<span class="lineCov"> 55 : return (off >= hdrsize) && (off <= totalsize);</span></a>
<a name="55"><span class="lineNum"> 55 </span> : : }</a>
<a name="56"><span class="lineNum"> 56 </span> : : </a>
<a name="57"><span class="lineNum"> 57 </span> :<span class="lineCov"> 22 : static int check_block_(uint32_t hdrsize, uint32_t totalsize,</span></a>
<a name="58"><span class="lineNum"> 58 </span> : : uint32_t base, uint32_t size)</a>
<a name="59"><span class="lineNum"> 59 </span> : : {</a>
<a name="60"><span class="lineNum"> 60 </span> :<span class="lineCov"> 22 : if (!check_off_(hdrsize, totalsize, base))</span></a>
<a name="61"><span class="lineNum"> 61 </span> :<span class="lineNoCov"> 0 : return 0; /* block start out of bounds */</span></a>
<a name="62"><span class="lineNum"> 62 </span> :<span class="lineCov"> 22 : if ((base + size) < base)</span></a>
<a name="63"><span class="lineNum"> 63 </span> :<span class="lineNoCov"> 0 : return 0; /* overflow */</span></a>
<a name="64"><span class="lineNum"> 64 </span> :<span class="lineCov"> 22 : if (!check_off_(hdrsize, totalsize, base + size))</span></a>
<a name="65"><span class="lineNum"> 65 </span> :<span class="lineNoCov"> 0 : return 0; /* block end out of bounds */</span></a>
<a name="66"><span class="lineNum"> 66 </span> :<span class="lineCov"> 22 : return 1;</span></a>
<a name="67"><span class="lineNum"> 67 </span> : : }</a>
<a name="68"><span class="lineNum"> 68 </span> : : </a>
<a name="69"><span class="lineNum"> 69 </span> :<span class="lineCov"> 11 : size_t fdt_header_size_(uint32_t version)</span></a>
<a name="70"><span class="lineNum"> 70 </span> : : {</a>
<a name="71"><span class="lineNum"> 71 </span> :<span class="lineCov"> 11 : if (version <= 1)</span></a>
<a name="72"><span class="lineNum"> 72 </span> :<span class="lineNoCov"> 0 : return FDT_V1_SIZE;</span></a>
<a name="73"><span class="lineNum"> 73 </span> :<span class="lineCov"> 11 : else if (version <= 2)</span></a>
<a name="74"><span class="lineNum"> 74 </span> :<span class="lineNoCov"> 0 : return FDT_V2_SIZE;</span></a>
<a name="75"><span class="lineNum"> 75 </span> :<span class="lineCov"> 11 : else if (version <= 3)</span></a>
<a name="76"><span class="lineNum"> 76 </span> :<span class="lineNoCov"> 0 : return FDT_V3_SIZE;</span></a>
<a name="77"><span class="lineNum"> 77 </span> :<span class="lineCov"> 11 : else if (version <= 16)</span></a>
<a name="78"><span class="lineNum"> 78 </span> :<span class="lineNoCov"> 0 : return FDT_V16_SIZE;</span></a>
<a name="79"><span class="lineNum"> 79 </span> : : else</a>
<a name="80"><span class="lineNum"> 80 </span> :<span class="lineCov"> 11 : return FDT_V17_SIZE;</span></a>
<a name="81"><span class="lineNum"> 81 </span> : : }</a>
<a name="82"><span class="lineNum"> 82 </span> : : </a>
<a name="83"><span class="lineNum"> 83 </span> :<span class="lineCov"> 11 : size_t fdt_header_size(const void *fdt)</span></a>
<a name="84"><span class="lineNum"> 84 </span> : : {</a>
<a name="85"><span class="lineNum"> 85 </span> :<span class="lineCov"> 22 : return can_assume(LATEST) ? FDT_V17_SIZE :</span></a>
<a name="86"><span class="lineNum"> 86 </span> :<span class="lineCov"> 11 : fdt_header_size_(fdt_version(fdt));</span></a>
<a name="87"><span class="lineNum"> 87 </span> : : }</a>
<a name="88"><span class="lineNum"> 88 </span> : : </a>
<a name="89"><span class="lineNum"> 89 </span> :<span class="lineCov"> 11 : int fdt_check_header(const void *fdt)</span></a>
<a name="90"><span class="lineNum"> 90 </span> : : {</a>
<a name="91"><span class="lineNum"> 91 </span> : : size_t hdrsize;</a>
<a name="92"><span class="lineNum"> 92 </span> : : </a>
<a name="93"><span class="lineNum"> 93 </span> : : /* The device tree must be at an 8-byte aligned address */</a>
<a name="94"><span class="lineNum"> 94 </span> :<span class="lineCov"> 11 : if ((uintptr_t)fdt & 7)</span></a>
<a name="95"><span class="lineNum"> 95 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_ALIGNMENT;</span></a>
<a name="96"><span class="lineNum"> 96 </span> : : </a>
<a name="97"><span class="lineNum"> 97 </span> :<span class="lineCov"> 11 : if (fdt_magic(fdt) != FDT_MAGIC)</span></a>
<a name="98"><span class="lineNum"> 98 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_BADMAGIC;</span></a>
<a name="99"><span class="lineNum"> 99 </span> :<span class="lineCov"> 11 : if (!can_assume(LATEST)) {</span></a>
<a name="100"><span class="lineNum"> 100 </span> :<span class="lineCov"> 11 : if ((fdt_version(fdt) < FDT_FIRST_SUPPORTED_VERSION)</span></a>
<a name="101"><span class="lineNum"> 101 </span> :<span class="lineCov"> 11 : || (fdt_last_comp_version(fdt) ></span></a>
<a name="102"><span class="lineNum"> 102 </span> : : FDT_LAST_SUPPORTED_VERSION))</a>
<a name="103"><span class="lineNum"> 103 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_BADVERSION;</span></a>
<a name="104"><span class="lineNum"> 104 </span> :<span class="lineCov"> 11 : if (fdt_version(fdt) < fdt_last_comp_version(fdt))</span></a>
<a name="105"><span class="lineNum"> 105 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_BADVERSION;</span></a>
<a name="106"><span class="lineNum"> 106 </span> : : }</a>
<a name="107"><span class="lineNum"> 107 </span> :<span class="lineCov"> 11 : hdrsize = fdt_header_size(fdt);</span></a>
<a name="108"><span class="lineNum"> 108 </span> :<span class="lineCov"> 11 : if (!can_assume(VALID_DTB)) {</span></a>
<a name="109"><span class="lineNum"> 109 </span> : : </a>
<a name="110"><span class="lineNum"> 110 </span> :<span class="lineCov"> 11 : if ((fdt_totalsize(fdt) < hdrsize)</span></a>
<a name="111"><span class="lineNum"> 111 </span> :<span class="lineCov"> 11 : || (fdt_totalsize(fdt) > INT_MAX))</span></a>
<a name="112"><span class="lineNum"> 112 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_TRUNCATED;</span></a>
<a name="113"><span class="lineNum"> 113 </span> : : </a>
<a name="114"><span class="lineNum"> 114 </span> : : /* Bounds check memrsv block */</a>
<a name="115"><span class="lineNum"> 115 </span> :<span class="lineCov"> 11 : if (!check_off_(hdrsize, fdt_totalsize(fdt),</span></a>
<a name="116"><span class="lineNum"> 116 </span> : : fdt_off_mem_rsvmap(fdt)))</a>
<a name="117"><span class="lineNum"> 117 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_TRUNCATED;</span></a>
<a name="118"><span class="lineNum"> 118 </span> : : }</a>
<a name="119"><span class="lineNum"> 119 </span> : : </a>
<a name="120"><span class="lineNum"> 120 </span> :<span class="lineCov"> 11 : if (!can_assume(VALID_DTB)) {</span></a>
<a name="121"><span class="lineNum"> 121 </span> : : /* Bounds check structure block */</a>
<a name="122"><span class="lineNum"> 122 </span> :<span class="lineCov"> 11 : if (!can_assume(LATEST) && fdt_version(fdt) < 17) {</span></a>
<a name="123"><span class="lineNum"> 123 </span> :<span class="lineNoCov"> 0 : if (!check_off_(hdrsize, fdt_totalsize(fdt),</span></a>
<a name="124"><span class="lineNum"> 124 </span> : : fdt_off_dt_struct(fdt)))</a>
<a name="125"><span class="lineNum"> 125 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_TRUNCATED;</span></a>
<a name="126"><span class="lineNum"> 126 </span> : : } else {</a>
<a name="127"><span class="lineNum"> 127 </span> :<span class="lineCov"> 11 : if (!check_block_(hdrsize, fdt_totalsize(fdt),</span></a>
<a name="128"><span class="lineNum"> 128 </span> : : fdt_off_dt_struct(fdt),</a>
<a name="129"><span class="lineNum"> 129 </span> : : fdt_size_dt_struct(fdt)))</a>
<a name="130"><span class="lineNum"> 130 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_TRUNCATED;</span></a>
<a name="131"><span class="lineNum"> 131 </span> : : }</a>
<a name="132"><span class="lineNum"> 132 </span> : : </a>
<a name="133"><span class="lineNum"> 133 </span> : : /* Bounds check strings block */</a>
<a name="134"><span class="lineNum"> 134 </span> :<span class="lineCov"> 11 : if (!check_block_(hdrsize, fdt_totalsize(fdt),</span></a>
<a name="135"><span class="lineNum"> 135 </span> : : fdt_off_dt_strings(fdt),</a>
<a name="136"><span class="lineNum"> 136 </span> : : fdt_size_dt_strings(fdt)))</a>
<a name="137"><span class="lineNum"> 137 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_TRUNCATED;</span></a>
<a name="138"><span class="lineNum"> 138 </span> : : }</a>
<a name="139"><span class="lineNum"> 139 </span> : : </a>
<a name="140"><span class="lineNum"> 140 </span> :<span class="lineCov"> 11 : return 0;</span></a>
<a name="141"><span class="lineNum"> 141 </span> : : }</a>
<a name="142"><span class="lineNum"> 142 </span> : : </a>
<a name="143"><span class="lineNum"> 143 </span> :<span class="lineCov"> 14315 : const void *fdt_offset_ptr(const void *fdt, int offset, unsigned int len)</span></a>
<a name="144"><span class="lineNum"> 144 </span> : : {</a>
<a name="145"><span class="lineNum"> 145 </span> :<span class="lineCov"> 14315 : unsigned int uoffset = offset;</span></a>
<a name="146"><span class="lineNum"> 146 </span> :<span class="lineCov"> 14315 : unsigned int absoffset = offset + fdt_off_dt_struct(fdt);</span></a>
<a name="147"><span class="lineNum"> 147 </span> : : </a>
<a name="148"><span class="lineNum"> 148 </span> :<span class="lineCov"> 14315 : if (offset < 0)</span></a>
<a name="149"><span class="lineNum"> 149 </span> :<span class="lineNoCov"> 0 : return NULL;</span></a>
<a name="150"><span class="lineNum"> 150 </span> : : </a>
<a name="151"><span class="lineNum"> 151 </span> :<span class="lineCov"> 14315 : if (!can_assume(VALID_INPUT))</span></a>
<a name="152"><span class="lineNum"> 152 </span> :<span class="lineCov"> 14315 : if ((absoffset < uoffset)</span></a>
<a name="153"><span class="lineNum"> 153 </span> :<span class="lineCov"> 14315 : || ((absoffset + len) < absoffset)</span></a>
<a name="154"><span class="lineNum"> 154 </span> :<span class="lineCov"> 14315 : || (absoffset + len) > fdt_totalsize(fdt))</span></a>
<a name="155"><span class="lineNum"> 155 </span> :<span class="lineNoCov"> 0 : return NULL;</span></a>
<a name="156"><span class="lineNum"> 156 </span> : : </a>
<a name="157"><span class="lineNum"> 157 </span> :<span class="lineCov"> 14315 : if (can_assume(LATEST) || fdt_version(fdt) >= 0x11)</span></a>
<a name="158"><span class="lineNum"> 158 </span> :<span class="lineCov"> 14315 : if (((uoffset + len) < uoffset)</span></a>
<a name="159"><span class="lineNum"> 159 </span> :<span class="lineCov"> 14315 : || ((offset + len) > fdt_size_dt_struct(fdt)))</span></a>
<a name="160"><span class="lineNum"> 160 </span> :<span class="lineNoCov"> 0 : return NULL;</span></a>
<a name="161"><span class="lineNum"> 161 </span> : : </a>
<a name="162"><span class="lineNum"> 162 </span> :<span class="lineCov"> 14315 : return fdt_offset_ptr_(fdt, offset);</span></a>
<a name="163"><span class="lineNum"> 163 </span> : : }</a>
<a name="164"><span class="lineNum"> 164 </span> : : </a>
<a name="165"><span class="lineNum"> 165 </span> :<span class="lineCov"> 3355 : uint32_t fdt_next_tag(const void *fdt, int startoffset, int *nextoffset)</span></a>
<a name="166"><span class="lineNum"> 166 </span> : : {</a>
<a name="167"><span class="lineNum"> 167 </span> : : const fdt32_t *tagp, *lenp;</a>
<a name="168"><span class="lineNum"> 168 </span> : : uint32_t tag;</a>
<a name="169"><span class="lineNum"> 169 </span> :<span class="lineCov"> 3355 : int offset = startoffset;</span></a>
<a name="170"><span class="lineNum"> 170 </span> : : const char *p;</a>
<a name="171"><span class="lineNum"> 171 </span> : : </a>
<a name="172"><span class="lineNum"> 172 </span> :<span class="lineCov"> 3355 : *nextoffset = -FDT_ERR_TRUNCATED;</span></a>
<a name="173"><span class="lineNum"> 173 </span> :<span class="lineCov"> 3355 : tagp = fdt_offset_ptr(fdt, offset, FDT_TAGSIZE);</span></a>
<a name="174"><span class="lineNum"> 174 </span> :<span class="lineCov"> 3355 : if (!can_assume(VALID_DTB) && !tagp)</span></a>
<a name="175"><span class="lineNum"> 175 </span> :<span class="lineNoCov"> 0 : return FDT_END; /* premature end */</span></a>
<a name="176"><span class="lineNum"> 176 </span> :<span class="lineCov"> 3355 : tag = fdt32_to_cpu(*tagp);</span></a>
<a name="177"><span class="lineNum"> 177 </span> :<span class="lineCov"> 3355 : offset += FDT_TAGSIZE;</span></a>
<a name="178"><span class="lineNum"> 178 </span> : : </a>
<a name="179"><span class="lineNum"> 179 </span> :<span class="lineCov"> 3355 : *nextoffset = -FDT_ERR_BADSTRUCTURE;</span></a>
<a name="180"><span class="lineNum"> 180 </span> :<span class="lineCov"> 3355 : switch (tag) {</span></a>
<a name="181"><span class="lineNum"> 181 </span> :<span class="lineCov"> 4756 : case FDT_BEGIN_NODE:</span></a>
<a name="182"><span class="lineNum"> 182 </span> : : /* skip name */</a>
<a name="183"><span class="lineNum"> 183 </span> : : do {</a>
<a name="184"><span class="lineNum"> 184 </span> :<span class="lineCov"> 4756 : p = fdt_offset_ptr(fdt, offset++, 1);</span></a>
<a name="185"><span class="lineNum"> 185 </span> :<span class="lineCov"> 4756 : } while (p && (*p != '\0'));</span></a>
<a name="186"><span class="lineNum"> 186 </span> :<span class="lineCov"> 259 : if (!can_assume(VALID_DTB) && !p)</span></a>
<a name="187"><span class="lineNum"> 187 </span> :<span class="lineNoCov"> 0 : return FDT_END; /* premature end */</span></a>
<a name="188"><span class="lineNum"> 188 </span> :<span class="lineCov"> 259 : break;</span></a>
<a name="189"><span class="lineNum"> 189 </span> : : </a>
<a name="190"><span class="lineNum"> 190 </span> :<span class="lineCov"> 2849 : case FDT_PROP:</span></a>
<a name="191"><span class="lineNum"> 191 </span> :<span class="lineCov"> 2849 : lenp = fdt_offset_ptr(fdt, offset, sizeof(*lenp));</span></a>
<a name="192"><span class="lineNum"> 192 </span> :<span class="lineCov"> 2849 : if (!can_assume(VALID_DTB) && !lenp)</span></a>
<a name="193"><span class="lineNum"> 193 </span> :<span class="lineNoCov"> 0 : return FDT_END; /* premature end */</span></a>
<a name="194"><span class="lineNum"> 194 </span> : : /* skip-name offset, length and value */</a>
<a name="195"><span class="lineNum"> 195 </span> :<span class="lineCov"> 2849 : offset += sizeof(struct fdt_property) - FDT_TAGSIZE</span></a>
<a name="196"><span class="lineNum"> 196 </span> :<span class="lineCov"> 2849 : + fdt32_to_cpu(*lenp);</span></a>
<a name="197"><span class="lineNum"> 197 </span> :<span class="lineCov"> 5698 : if (!can_assume(LATEST) &&</span></a>
<a name="198"><span class="lineNum"> 198 </span> :<span class="lineCov"> 2849 : fdt_version(fdt) < 0x10 && fdt32_to_cpu(*lenp) >= 8 &&</span></a>
<a name="199"><span class="lineNum"> 199 </span> :<span class="lineNoCov"> 0 : ((offset - fdt32_to_cpu(*lenp)) % 8) != 0)</span></a>
<a name="200"><span class="lineNum"> 200 </span> :<span class="lineNoCov"> 0 : offset += 4;</span></a>
<a name="201"><span class="lineNum"> 201 </span> :<span class="lineCov"> 2849 : break;</span></a>
<a name="202"><span class="lineNum"> 202 </span> : : </a>
<a name="203"><span class="lineNum"> 203 </span> :<span class="lineCov"> 247 : case FDT_END:</span></a>
<a name="204"><span class="lineNum"> 204 </span> : : case FDT_END_NODE:</a>
<a name="205"><span class="lineNum"> 205 </span> : : case FDT_NOP:</a>
<a name="206"><span class="lineNum"> 206 </span> :<span class="lineCov"> 247 : break;</span></a>
<a name="207"><span class="lineNum"> 207 </span> : : </a>
<a name="208"><span class="lineNum"> 208 </span> :<span class="lineNoCov"> 0 : default:</span></a>
<a name="209"><span class="lineNum"> 209 </span> :<span class="lineNoCov"> 0 : return FDT_END;</span></a>
<a name="210"><span class="lineNum"> 210 </span> : : }</a>
<a name="211"><span class="lineNum"> 211 </span> : : </a>
<a name="212"><span class="lineNum"> 212 </span> :<span class="lineCov"> 3355 : if (!fdt_offset_ptr(fdt, startoffset, offset - startoffset))</span></a>
<a name="213"><span class="lineNum"> 213 </span> :<span class="lineNoCov"> 0 : return FDT_END; /* premature end */</span></a>
<a name="214"><span class="lineNum"> 214 </span> : : </a>
<a name="215"><span class="lineNum"> 215 </span> :<span class="lineCov"> 3355 : *nextoffset = FDT_TAGALIGN(offset);</span></a>
<a name="216"><span class="lineNum"> 216 </span> :<span class="lineCov"> 3355 : return tag;</span></a>
<a name="217"><span class="lineNum"> 217 </span> : : }</a>
<a name="218"><span class="lineNum"> 218 </span> : : </a>
<a name="219"><span class="lineNum"> 219 </span> :<span class="lineCov"> 16 : int fdt_check_node_offset_(const void *fdt, int offset)</span></a>
<a name="220"><span class="lineNum"> 220 </span> : : {</a>
<a name="221"><span class="lineNum"> 221 </span> :<span class="lineCov"> 16 : if (!can_assume(VALID_INPUT)</span></a>
<a name="222"><span class="lineNum"> 222 </span> :<span class="lineCov"> 16 : && ((offset < 0) || (offset % FDT_TAGSIZE)))</span></a>
<a name="223"><span class="lineNum"> 223 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_BADOFFSET;</span></a>
<a name="224"><span class="lineNum"> 224 </span> : : </a>
<a name="225"><span class="lineNum"> 225 </span> :<span class="lineCov"> 16 : if (fdt_next_tag(fdt, offset, &offset) != FDT_BEGIN_NODE)</span></a>
<a name="226"><span class="lineNum"> 226 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_BADOFFSET;</span></a>
<a name="227"><span class="lineNum"> 227 </span> : : </a>
<a name="228"><span class="lineNum"> 228 </span> :<span class="lineCov"> 16 : return offset;</span></a>
<a name="229"><span class="lineNum"> 229 </span> : : }</a>
<a name="230"><span class="lineNum"> 230 </span> : : </a>
<a name="231"><span class="lineNum"> 231 </span> :<span class="lineNoCov"> 0 : int fdt_check_prop_offset_(const void *fdt, int offset)</span></a>
<a name="232"><span class="lineNum"> 232 </span> : : {</a>
<a name="233"><span class="lineNum"> 233 </span> :<span class="lineNoCov"> 0 : if (!can_assume(VALID_INPUT)</span></a>
<a name="234"><span class="lineNum"> 234 </span> :<span class="lineNoCov"> 0 : && ((offset < 0) || (offset % FDT_TAGSIZE)))</span></a>
<a name="235"><span class="lineNum"> 235 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_BADOFFSET;</span></a>
<a name="236"><span class="lineNum"> 236 </span> : : </a>
<a name="237"><span class="lineNum"> 237 </span> :<span class="lineNoCov"> 0 : if (fdt_next_tag(fdt, offset, &offset) != FDT_PROP)</span></a>
<a name="238"><span class="lineNum"> 238 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_BADOFFSET;</span></a>
<a name="239"><span class="lineNum"> 239 </span> : : </a>
<a name="240"><span class="lineNum"> 240 </span> :<span class="lineNoCov"> 0 : return offset;</span></a>
<a name="241"><span class="lineNum"> 241 </span> : : }</a>
<a name="242"><span class="lineNum"> 242 </span> : : </a>
<a name="243"><span class="lineNum"> 243 </span> :<span class="lineNoCov"> 0 : int fdt_next_node(const void *fdt, int offset, int *depth)</span></a>
<a name="244"><span class="lineNum"> 244 </span> : : {</a>
<a name="245"><span class="lineNum"> 245 </span> :<span class="lineNoCov"> 0 : int nextoffset = 0;</span></a>
<a name="246"><span class="lineNum"> 246 </span> : : uint32_t tag;</a>
<a name="247"><span class="lineNum"> 247 </span> : : </a>
<a name="248"><span class="lineNum"> 248 </span> :<span class="lineNoCov"> 0 : if (offset >= 0)</span></a>
<a name="249"><span class="lineNum"> 249 </span> :<span class="lineNoCov"> 0 : if ((nextoffset = fdt_check_node_offset_(fdt, offset)) < 0)</span></a>
<a name="250"><span class="lineNum"> 250 </span> :<span class="lineNoCov"> 0 : return nextoffset;</span></a>
<a name="251"><span class="lineNum"> 251 </span> : : </a>
<a name="252"><span class="lineNum"> 252 </span> : : do {</a>
<a name="253"><span class="lineNum"> 253 </span> :<span class="lineNoCov"> 0 : offset = nextoffset;</span></a>
<a name="254"><span class="lineNum"> 254 </span> :<span class="lineNoCov"> 0 : tag = fdt_next_tag(fdt, offset, &nextoffset);</span></a>
<a name="255"><span class="lineNum"> 255 </span> : : </a>
<a name="256"><span class="lineNum"> 256 </span> :<span class="lineNoCov"> 0 : switch (tag) {</span></a>
<a name="257"><span class="lineNum"> 257 </span> :<span class="lineNoCov"> 0 : case FDT_PROP:</span></a>
<a name="258"><span class="lineNum"> 258 </span> : : case FDT_NOP:</a>
<a name="259"><span class="lineNum"> 259 </span> :<span class="lineNoCov"> 0 : break;</span></a>
<a name="260"><span class="lineNum"> 260 </span> : : </a>
<a name="261"><span class="lineNum"> 261 </span> :<span class="lineNoCov"> 0 : case FDT_BEGIN_NODE:</span></a>
<a name="262"><span class="lineNum"> 262 </span> :<span class="lineNoCov"> 0 : if (depth)</span></a>
<a name="263"><span class="lineNum"> 263 </span> :<span class="lineNoCov"> 0 : (*depth)++;</span></a>
<a name="264"><span class="lineNum"> 264 </span> :<span class="lineNoCov"> 0 : break;</span></a>
<a name="265"><span class="lineNum"> 265 </span> : : </a>
<a name="266"><span class="lineNum"> 266 </span> :<span class="lineNoCov"> 0 : case FDT_END_NODE:</span></a>
<a name="267"><span class="lineNum"> 267 </span> :<span class="lineNoCov"> 0 : if (depth && ((--(*depth)) < 0))</span></a>
<a name="268"><span class="lineNum"> 268 </span> :<span class="lineNoCov"> 0 : return nextoffset;</span></a>
<a name="269"><span class="lineNum"> 269 </span> :<span class="lineNoCov"> 0 : break;</span></a>
<a name="270"><span class="lineNum"> 270 </span> : : </a>
<a name="271"><span class="lineNum"> 271 </span> :<span class="lineNoCov"> 0 : case FDT_END:</span></a>
<a name="272"><span class="lineNum"> 272 </span> :<span class="lineNoCov"> 0 : if ((nextoffset >= 0)</span></a>
<a name="273"><span class="lineNum"> 273 </span> :<span class="lineNoCov"> 0 : || ((nextoffset == -FDT_ERR_TRUNCATED) && !depth))</span></a>
<a name="274"><span class="lineNum"> 274 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_NOTFOUND;</span></a>
<a name="275"><span class="lineNum"> 275 </span> : : else</a>
<a name="276"><span class="lineNum"> 276 </span> :<span class="lineNoCov"> 0 : return nextoffset;</span></a>
<a name="277"><span class="lineNum"> 277 </span> : : }</a>
<a name="278"><span class="lineNum"> 278 </span> :<span class="lineNoCov"> 0 : } while (tag != FDT_BEGIN_NODE);</span></a>
<a name="279"><span class="lineNum"> 279 </span> : : </a>
<a name="280"><span class="lineNum"> 280 </span> :<span class="lineNoCov"> 0 : return offset;</span></a>
<a name="281"><span class="lineNum"> 281 </span> : : }</a>
<a name="282"><span class="lineNum"> 282 </span> : : </a>
<a name="283"><span class="lineNum"> 283 </span> :<span class="lineNoCov"> 0 : int fdt_first_subnode(const void *fdt, int offset)</span></a>
<a name="284"><span class="lineNum"> 284 </span> : : {</a>
<a name="285"><span class="lineNum"> 285 </span> :<span class="lineNoCov"> 0 : int depth = 0;</span></a>
<a name="286"><span class="lineNum"> 286 </span> : : </a>
<a name="287"><span class="lineNum"> 287 </span> :<span class="lineNoCov"> 0 : offset = fdt_next_node(fdt, offset, &depth);</span></a>
<a name="288"><span class="lineNum"> 288 </span> :<span class="lineNoCov"> 0 : if (offset < 0 || depth != 1)</span></a>
<a name="289"><span class="lineNum"> 289 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_NOTFOUND;</span></a>
<a name="290"><span class="lineNum"> 290 </span> : : </a>
<a name="291"><span class="lineNum"> 291 </span> :<span class="lineNoCov"> 0 : return offset;</span></a>
<a name="292"><span class="lineNum"> 292 </span> : : }</a>
<a name="293"><span class="lineNum"> 293 </span> : : </a>
<a name="294"><span class="lineNum"> 294 </span> :<span class="lineNoCov"> 0 : int fdt_next_subnode(const void *fdt, int offset)</span></a>
<a name="295"><span class="lineNum"> 295 </span> : : {</a>
<a name="296"><span class="lineNum"> 296 </span> :<span class="lineNoCov"> 0 : int depth = 1;</span></a>
<a name="297"><span class="lineNum"> 297 </span> : : </a>
<a name="298"><span class="lineNum"> 298 </span> : : /*</a>
<a name="299"><span class="lineNum"> 299 </span> : : * With respect to the parent, the depth of the next subnode will be</a>
<a name="300"><span class="lineNum"> 300 </span> : : * the same as the last.</a>
<a name="301"><span class="lineNum"> 301 </span> : : */</a>
<a name="302"><span class="lineNum"> 302 </span> : : do {</a>
<a name="303"><span class="lineNum"> 303 </span> :<span class="lineNoCov"> 0 : offset = fdt_next_node(fdt, offset, &depth);</span></a>
<a name="304"><span class="lineNum"> 304 </span> :<span class="lineNoCov"> 0 : if (offset < 0 || depth < 1)</span></a>
<a name="305"><span class="lineNum"> 305 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_NOTFOUND;</span></a>
<a name="306"><span class="lineNum"> 306 </span> :<span class="lineNoCov"> 0 : } while (depth > 1);</span></a>
<a name="307"><span class="lineNum"> 307 </span> : : </a>
<a name="308"><span class="lineNum"> 308 </span> :<span class="lineNoCov"> 0 : return offset;</span></a>
<a name="309"><span class="lineNum"> 309 </span> : : }</a>
<a name="310"><span class="lineNum"> 310 </span> : : </a>
<a name="311"><span class="lineNum"> 311 </span> :<span class="lineCov"> 2811 : const char *fdt_find_string_(const char *strtab, int tabsize, const char *s)</span></a>
<a name="312"><span class="lineNum"> 312 </span> : : {</a>
<a name="313"><span class="lineNum"> 313 </span> :<span class="lineCov"> 2811 : int len = strlen(s) + 1;</span></a>
<a name="314"><span class="lineNum"> 314 </span> :<span class="lineCov"> 2811 : const char *last = strtab + tabsize - len;</span></a>
<a name="315"><span class="lineNum"> 315 </span> : : const char *p;</a>
<a name="316"><span class="lineNum"> 316 </span> : : </a>
<a name="317"><span class="lineNum"> 317 </span> :<span class="lineCov"> 1245330 : for (p = strtab; p <= last; p++)</span></a>
<a name="318"><span class="lineNum"> 318 </span> :<span class="lineCov"> 1245130 : if (memcmp(p, s, len) == 0)</span></a>
<a name="319"><span class="lineNum"> 319 </span> :<span class="lineCov"> 2613 : return p;</span></a>
<a name="320"><span class="lineNum"> 320 </span> :<span class="lineCov"> 198 : return NULL;</span></a>
<a name="321"><span class="lineNum"> 321 </span> : : }</a>
<a name="322"><span class="lineNum"> 322 </span> : : </a>
<a name="323"><span class="lineNum"> 323 </span> :<span class="lineNoCov"> 0 : int fdt_move(const void *fdt, void *buf, int bufsize)</span></a>
<a name="324"><span class="lineNum"> 324 </span> : : {</a>
<a name="325"><span class="lineNum"> 325 </span> :<span class="lineNoCov"> 0 : if (!can_assume(VALID_INPUT) && bufsize < 0)</span></a>
<a name="326"><span class="lineNum"> 326 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_NOSPACE;</span></a>
<a name="327"><span class="lineNum"> 327 </span> : : </a>
<a name="328"><span class="lineNum"> 328 </span> :<span class="lineNoCov"> 0 : FDT_RO_PROBE(fdt);</span></a>
<a name="329"><span class="lineNum"> 329 </span> : : </a>
<a name="330"><span class="lineNum"> 330 </span> :<span class="lineNoCov"> 0 : if (fdt_totalsize(fdt) > (unsigned int)bufsize)</span></a>
<a name="331"><span class="lineNum"> 331 </span> :<span class="lineNoCov"> 0 : return -FDT_ERR_NOSPACE;</span></a>
<a name="332"><span class="lineNum"> 332 </span> : : </a>
<a name="333"><span class="lineNum"> 333 </span> :<span class="lineNoCov"> 0 : memmove(buf, fdt, fdt_totalsize(fdt));</span></a>
<a name="334"><span class="lineNum"> 334 </span> :<span class="lineNoCov"> 0 : return 0;</span></a>
<a name="335"><span class="lineNum"> 335 </span> : : }</a>
</pre>
</td>
</tr>
</table>
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<table width="100%" border=0 cellspacing=0 cellpadding=0>
<tr><td class="ruler"><img src="../glass.png" width=3 height=3 alt=""></td></tr>
<tr><td class="versionInfo">Generated by: <a href="http://ltp.sourceforge.net/coverage/lcov.php" target="_parent">LCOV version 1.14</a></td></tr>
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