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 <span id="projectnumber">7.0</span>
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<div class="title">cpu.cpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// cpu.cpp - originally written and placed in the public domain by Wei Dai</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor">#include "<a class="code" href="pch_8h.html">pch.h</a>"</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include "<a class="code" href="config_8h.html">config.h</a>"</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> </div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#ifndef EXCEPTION_EXECUTE_HANDLER</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor"># define EXCEPTION_EXECUTE_HANDLER 1</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#ifndef CRYPTOPP_IMPORTS</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "<a class="code" href="cpu_8h.html">cpu.h</a>"</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "<a class="code" href="misc_8h.html">misc.h</a>"</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "<a class="code" href="stdcpp_8h.html">stdcpp.h</a>"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#ifdef _AIX</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor"># include <sys/systemcfg.h></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#ifdef __linux__</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor"># include <unistd.h></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// Capability queries, requires Glibc 2.16, http://lwn.net/Articles/519085/</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// CRYPTOPP_GLIBC_VERSION not used because config.h is missing <feature.h></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#if (((__GLIBC__ * 100) + __GLIBC_MINOR__) >= 216)</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"># define CRYPTOPP_GETAUXV_AVAILABLE 1</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#if CRYPTOPP_GETAUXV_AVAILABLE</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"># include <sys/auxv.h></span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#ifndef AT_HWCAP</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"># define AT_HWCAP 16</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#ifndef AT_HWCAP2</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"># define AT_HWCAP2 26</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">int</span> getauxval(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">int</span>) { <span class="keywordflow">return</span> 0; }</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#if defined(__APPLE__) && (defined(__aarch64__) || defined(__POWERPC__))</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"># include <sys/utsname.h></span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment">// The cpu-features header and source file are located in $ANDROID_NDK_ROOT/sources/android/cpufeatures</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment">// setenv-android.sh will copy the header and source file into PWD and the makefile will build it in place.</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#if defined(__ANDROID__)</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor"># include "cpu-features.h"</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#ifdef CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"># include <signal.h></span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor"># include <setjmp.h></span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#ifndef CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">typedef</span> void (*SigHandler)(int);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> }</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> {</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">static</span> jmp_buf s_jmpNoCPUID;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> SigIllHandlerCPUID(<span class="keywordtype">int</span> unused)</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  CRYPTOPP_UNUSED(unused);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  longjmp(s_jmpNoCPUID, 1);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#endif // Not CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment">// *************************** IA-32 CPUs ***************************</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor">#if (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64)</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbeSSE2();</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#if _MSC_VER >= 1600</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CpuId(word32 func, word32 subfunc, word32 output[4])</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> {</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  __cpuidex((<span class="keywordtype">int</span> *)output, func, subfunc);</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#elif _MSC_VER >= 1400 && CRYPTOPP_BOOL_X64</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CpuId(word32 func, word32 subfunc, word32 output[4])</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> {</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span> (subfunc != 0)</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  __cpuid((<span class="keywordtype">int</span> *)output, func);</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> }</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment">// Borland/Embarcadero and Issue 498</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment">// cpu.cpp (131): E2211 Inline assembly not allowed in inline and template functions</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="keywordtype">bool</span> CpuId(word32 func, word32 subfunc, word32 output[4])</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> {</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor">#if defined(CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY) || defined(__BORLANDC__)</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  __try</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  {</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="comment">// Borland/Embarcadero and Issue 500</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="comment">// Local variables for cpuid output</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  word32 a, b, c, d;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  __asm</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  {</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  mov eax, func</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  mov ecx, subfunc</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  cpuid</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  mov [a], eax</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  mov [b], ebx</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  mov [c], ecx</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  mov [d], edx</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  }</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  output[0] = a;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  output[1] = b;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  output[2] = c;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  output[3] = d;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  __except (EXCEPTION_EXECUTE_HANDLER)</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  {</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  }</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="comment">// func = 0 returns the highest basic function understood in EAX. If the CPU does</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// not return non-0, then it is mostly useless. The code below converts basic</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// function value to a true/false return value.</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">if</span>(func == 0)</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">return</span> output[0] != 0;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// longjmp and clobber warnings. Volatile is required.</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="comment">// http://github.com/weidai11/cryptopp/issues/24 and http://stackoverflow.com/q/7721854</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">volatile</span> <span class="keywordtype">bool</span> result = <span class="keyword">true</span>;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">volatile</span> SigHandler oldHandler = signal(SIGILL, SigIllHandlerCPUID);</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">if</span> (oldHandler == SIG_ERR)</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="preprocessor"># ifndef __MINGW32__</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">volatile</span> sigset_t oldMask;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">if</span> (sigprocmask(0, NULLPTR, (sigset_t*)&oldMask) != 0)</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (setjmp(s_jmpNoCPUID))</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  result = <span class="keyword">false</span>;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  {</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">asm</span> <span class="keyword">volatile</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  (</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// save ebx in case -fPIC is being used</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">// TODO: this might need an early clobber on EDI.</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="preprocessor"># if CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="stringliteral">"pushq %%rbx; cpuid; mov %%ebx, %%edi; popq %%rbx"</span></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="preprocessor"># else</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="stringliteral">"push %%ebx; cpuid; mov %%ebx, %%edi; pop %%ebx"</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  : <span class="stringliteral">"=a"</span> (output[0]), <span class="stringliteral">"=D"</span> (output[1]), <span class="stringliteral">"=c"</span> (output[2]), <span class="stringliteral">"=d"</span> (output[3])</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  : <span class="stringliteral">"a"</span> (func), <span class="stringliteral">"c"</span> (subfunc)</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  : <span class="stringliteral">"cc"</span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  );</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  }</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="preprocessor"># ifndef __MINGW32__</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  sigprocmask(SIG_SETMASK, (sigset_t*)&oldMask, NULLPTR);</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  signal(SIGILL, oldHandler);</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> }</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_x86DetectionDone = <span class="keyword">false</span>;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasSSE2 = <span class="keyword">false</span>;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasSSSE3 = <span class="keyword">false</span>;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasSSE41 = <span class="keyword">false</span>;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasSSE42 = <span class="keyword">false</span>;</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasAESNI = <span class="keyword">false</span>;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasCLMUL = <span class="keyword">false</span>;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasADX = <span class="keyword">false</span>;</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasSHA = <span class="keyword">false</span>;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasRDRAND = <span class="keyword">false</span>;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasRDSEED = <span class="keyword">false</span>;</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_isP4 = <span class="keyword">false</span>;</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasPadlockRNG = <span class="keyword">false</span>;</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasPadlockACE = <span class="keyword">false</span>;</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasPadlockACE2 = <span class="keyword">false</span>;</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasPadlockPHE = <span class="keyword">false</span>;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasPadlockPMM = <span class="keyword">false</span>;</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> word32 CRYPTOPP_SECTION_INIT g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> IsIntel(<span class="keyword">const</span> word32 output[4])</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> {</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// This is the "GenuineIntel" string</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">return</span> (output[1] <span class="comment">/*EBX*/</span> == 0x756e6547) &&</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  (output[2] <span class="comment">/*ECX*/</span> == 0x6c65746e) &&</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  (output[3] <span class="comment">/*EDX*/</span> == 0x49656e69);</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> }</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> IsAMD(<span class="keyword">const</span> word32 output[4])</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> {</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="comment">// This is the "AuthenticAMD" string. Some early K5's can return "AMDisbetter!"</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">return</span> (output[1] <span class="comment">/*EBX*/</span> == 0x68747541) &&</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  (output[2] <span class="comment">/*ECX*/</span> == 0x444D4163) &&</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  (output[3] <span class="comment">/*EDX*/</span> == 0x69746E65);</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> }</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> IsVIA(<span class="keyword">const</span> word32 output[4])</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> {</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="comment">// This is the "CentaurHauls" string. Some non-PadLock's can return "VIA VIA VIA "</span></div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">return</span> (output[1] <span class="comment">/*EBX*/</span> == 0x746e6543) &&</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  (output[2] <span class="comment">/*ECX*/</span> == 0x736c7561) &&</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  (output[3] <span class="comment">/*EDX*/</span> == 0x48727561);</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> }</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="keywordtype">void</span> DetectX86Features()</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> {</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="comment">// Coverity finding CID 171239...</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  word32 cpuid0[4]={0}, cpuid1[4]={0}, cpuid2[4]={0};</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">if</span> (!CpuId(0, 0, cpuid0))</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">if</span> (!CpuId(1, 0, cpuid1))</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span> </div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="comment">// cpuid1[2] & (1 << 27) is XSAVE/XRESTORE and signals OS support for SSE; use it to avoid probes.</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="comment">// See http://github.com/weidai11/cryptopp/issues/511 and http://stackoverflow.com/a/22521619/608639</span></div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">if</span> ((cpuid1[3] & (1 << 26)) != 0)</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  g_hasSSE2 = ((cpuid1[2] & (1 << 27)) != 0) || CPU_ProbeSSE2();</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  g_hasSSSE3 = g_hasSSE2 && ((cpuid1[2] & (1<< 9)) != 0);</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  g_hasSSE41 = g_hasSSE2 && ((cpuid1[2] & (1<<19)) != 0);</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  g_hasSSE42 = g_hasSSE2 && ((cpuid1[2] & (1<<20)) != 0);</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  g_hasAESNI = g_hasSSE2 && ((cpuid1[2] & (1<<25)) != 0);</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  g_hasCLMUL = g_hasSSE2 && ((cpuid1[2] & (1<< 1)) != 0);</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> </div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">if</span> (IsIntel(cpuid0))</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  {</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  CRYPTOPP_CONSTANT(RDRAND_FLAG = (1 << 30))</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  CRYPTOPP_CONSTANT(RDSEED_FLAG = (1 << 18))</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  CRYPTOPP_CONSTANT( ADX_FLAG = (1 << 19))</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  CRYPTOPP_CONSTANT( SHA_FLAG = (1 << 29))</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> </div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  g_isP4 = ((cpuid1[0] >> 8) & 0xf) == 0xf;</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  g_cacheLineSize = 8 * GETBYTE(cpuid1[1], 1);</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  g_hasRDRAND = (cpuid1[2] <span class="comment">/*ECX*/</span> & RDRAND_FLAG) != 0;</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  if (cpuid0[0] <span class="comment">/*EAX*/</span> >= 7)</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  {</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">if</span> (CpuId(7, 0, cpuid2))</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  {</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  g_hasRDSEED = (cpuid2[1] <span class="comment">/*EBX*/</span> & RDSEED_FLAG) != 0;</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  g_hasADX = (cpuid2[1] <span class="comment">/*EBX*/</span> & ADX_FLAG) != 0;</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  g_hasSHA = (cpuid2[1] <span class="comment">/*EBX*/</span> & SHA_FLAG) != 0;</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  }</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  }</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  }</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (IsAMD(cpuid0))</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  {</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  CRYPTOPP_CONSTANT(RDRAND_FLAG = (1 << 30))</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  CRYPTOPP_CONSTANT(RDSEED_FLAG = (1 << 18))</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  CRYPTOPP_CONSTANT( ADX_FLAG = (1 << 19))</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  CRYPTOPP_CONSTANT( SHA_FLAG = (1 << 29))</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> </div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  CpuId(0x80000005, 0, cpuid2);</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  g_cacheLineSize = GETBYTE(cpuid2[2], 0);</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  g_hasRDRAND = (cpuid1[2] <span class="comment">/*ECX*/</span> & RDRAND_FLAG) != 0;</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> </div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  if (cpuid0[0] <span class="comment">/*EAX*/</span> >= 7)</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  {</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">if</span> (CpuId(7, 0, cpuid2))</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  {</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  g_hasRDSEED = (cpuid2[1] <span class="comment">/*EBX*/</span> & RDSEED_FLAG) != 0;</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  g_hasADX = (cpuid2[1] <span class="comment">/*EBX*/</span> & ADX_FLAG) != 0;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  g_hasSHA = (cpuid2[1] <span class="comment">/*EBX*/</span> & SHA_FLAG) != 0;</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  }</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  }</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  }</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (IsVIA(cpuid0))</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  {</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  CRYPTOPP_CONSTANT( RNG_FLAGS = (0x3 << 2))</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  CRYPTOPP_CONSTANT( ACE_FLAGS = (0x3 << 6))</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  CRYPTOPP_CONSTANT(ACE2_FLAGS = (0x3 << 8))</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  CRYPTOPP_CONSTANT( PHE_FLAGS = (0x3 << 10))</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  CRYPTOPP_CONSTANT( PMM_FLAGS = (0x3 << 12))</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> </div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  CpuId(0xC0000000, 0, cpuid2);</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  if (cpuid2[0] >= 0xC0000001)</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  {</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="comment">// Extended features available</span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  CpuId(0xC0000001, 0, cpuid2);</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  g_hasPadlockRNG = (cpuid2[3] <span class="comment">/*EDX*/</span> & RNG_FLAGS) != 0;</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  g_hasPadlockACE = (cpuid2[3] <span class="comment">/*EDX*/</span> & ACE_FLAGS) != 0;</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  g_hasPadlockACE2 = (cpuid2[3] <span class="comment">/*EDX*/</span> & ACE2_FLAGS) != 0;</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  g_hasPadlockPHE = (cpuid2[3] <span class="comment">/*EDX*/</span> & PHE_FLAGS) != 0;</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  g_hasPadlockPMM = (cpuid2[3] <span class="comment">/*EDX*/</span> & PMM_FLAGS) != 0;</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  }</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  }</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span> </div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">if</span> (g_cacheLineSize == 0)</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  *<span class="keyword">const_cast<</span><span class="keyword">volatile </span><span class="keywordtype">bool</span>*<span class="keyword">></span>(&g_x86DetectionDone) = <span class="keyword">true</span>;</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span> }</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> </div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="comment">// *************************** ARM-32, Aarch32 and Aarch64 ***************************</span></div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span> <span class="preprocessor">#elif (CRYPTOPP_BOOL_ARM32 || CRYPTOPP_BOOL_ARM64)</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span> </div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_ArmDetectionDone = <span class="keyword">false</span>;</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasNEON = <span class="keyword">false</span>;</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasPMULL = <span class="keyword">false</span>;</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasCRC32 = <span class="keyword">false</span>;</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasAES = <span class="keyword">false</span>;</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasSHA1 = <span class="keyword">false</span>;</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasSHA2 = <span class="keyword">false</span>;</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span> word32 CRYPTOPP_SECTION_INIT g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="comment">// ARM does not have an unprivliged equivalent to CPUID on IA-32. We have to jump through some</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="comment">// hoops to detect features on a wide array of platforms. Our strategy is two part. First,</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="comment">// attempt to *Query* the OS for a feature, like using getauxval on Linux. If that fails,</span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="comment">// then *Probe* the cpu executing an instruction and an observe a SIGILL if unsupported.</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span> <span class="comment">// The probes are in source files where compilation options like -march=armv8-a+crc make</span></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="comment">// intrinsics available. They are expensive when compared to a standard OS feature query.</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="comment">// Always perform the feature quesry first. For Linux see</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> <span class="comment">// http://sourceware.org/ml/libc-help/2017-08/msg00012.html</span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="comment">// Avoid probes on Apple platforms because Apple's signal handling for SIGILLs appears broken.</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="comment">// We are trying to figure out a way to feature test without probes. Also see</span></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="comment">// http://stackoverflow.com/a/11197770/608639 and</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span> <span class="comment">// http://gist.github.com/erkanyildiz/390a480f27e86f8cd6ba</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbeNEON();</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbeCRC32();</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbeAES();</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbeSHA1();</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbeSHA2();</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbePMULL();</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span> </div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span> <span class="preprocessor">#ifndef HWCAP_ASIMD</span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="preprocessor"># define HWCAP_ASIMD (1 << 1)</span></div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="preprocessor">#ifndef HWCAP_ARM_NEON</span></div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="preprocessor"># define HWCAP_ARM_NEON 4096</span></div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="preprocessor">#ifndef HWCAP_CRC32</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="preprocessor"># define HWCAP_CRC32 (1 << 7)</span></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="preprocessor">#ifndef HWCAP2_CRC32</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="preprocessor"># define HWCAP2_CRC32 (1 << 4)</span></div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="preprocessor">#ifndef HWCAP_PMULL</span></div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="preprocessor"># define HWCAP_PMULL (1 << 4)</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="preprocessor">#ifndef HWCAP2_PMULL</span></div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="preprocessor"># define HWCAP2_PMULL (1 << 1)</span></div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="preprocessor">#ifndef HWCAP_AES</span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="preprocessor"># define HWCAP_AES (1 << 3)</span></div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="preprocessor">#ifndef HWCAP2_AES</span></div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="preprocessor"># define HWCAP2_AES (1 << 0)</span></div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="preprocessor">#ifndef HWCAP_SHA1</span></div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="preprocessor"># define HWCAP_SHA1 (1 << 5)</span></div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span> <span class="preprocessor">#ifndef HWCAP_SHA2</span></div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="preprocessor"># define HWCAP_SHA2 (1 << 6)</span></div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="preprocessor">#ifndef HWCAP2_SHA1</span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="preprocessor"># define HWCAP2_SHA1 (1 << 2)</span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span> <span class="preprocessor">#ifndef HWCAP2_SHA2</span></div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="preprocessor"># define HWCAP2_SHA2 (1 << 3)</span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> </div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QueryNEON()</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span> {</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span> <span class="preprocessor">#if defined(__ANDROID__) && defined(__aarch64__)</span></div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_ASIMD) != 0))</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> <span class="preprocessor">#elif defined(__ANDROID__) && defined(__arm__)</span></div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM) != 0) &&</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0))</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch64__)</span></div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP) & HWCAP_ASIMD) != 0)</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch32__)</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP2) & HWCAP2_ASIMD) != 0)</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="preprocessor">#elif defined(__linux__) && defined(__arm__)</span></div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP) & HWCAP_ARM_NEON) != 0)</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span> <span class="preprocessor">#elif defined(__APPLE__) && defined(__aarch64__)</span></div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="comment">// Core feature set for Aarch32 and Aarch64.</span></div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span> }</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span> </div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QueryCRC32()</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span> {</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span> <span class="preprocessor">#if defined(__ANDROID__) && defined(__aarch64__)</span></div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_CRC32) != 0))</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <span class="preprocessor">#elif defined(__ANDROID__) && defined(__aarch32__)</span></div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM) != 0) &&</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_CRC32) != 0))</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch64__)</span></div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP) & HWCAP_CRC32) != 0)</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch32__)</span></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP2) & HWCAP2_CRC32) != 0)</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="preprocessor">#elif defined(__APPLE__) && defined(__aarch64__)</span></div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="comment">// No compiler support. CRC intrinsics result in a failed compiled.</span></div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> }</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QueryPMULL()</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span> {</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span> <span class="preprocessor">#if defined(__ANDROID__) && defined(__aarch64__)</span></div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_PMULL) != 0))</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> <span class="preprocessor">#elif defined(__ANDROID__) && defined(__aarch32__)</span></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM) != 0) &&</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_PMULL) != 0))</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch64__)</span></div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP) & HWCAP_PMULL) != 0)</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch32__)</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP2) & HWCAP2_PMULL) != 0)</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="preprocessor">#elif defined(__APPLE__) && defined(__aarch64__)</span></div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="comment">// No compiler support. PMULL intrinsics result in a failed compiled.</span></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span> }</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span> </div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QueryAES()</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span> {</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="preprocessor">#if defined(__ANDROID__) && defined(__aarch64__)</span></div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_AES) != 0))</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="preprocessor">#elif defined(__ANDROID__) && defined(__aarch32__)</span></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM) != 0) &&</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_AES) != 0))</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch64__)</span></div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP) & HWCAP_AES) != 0)</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch32__)</span></div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP2) & HWCAP2_AES) != 0)</div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span> <span class="preprocessor">#elif defined(__APPLE__) && defined(__aarch64__)</span></div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="comment">// http://stackoverflow.com/questions/45637888/how-to-determine-armv8-features-at-runtime-on-ios</span></div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keyword">struct </span>utsname systemInfo;</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  systemInfo.machine[0] = <span class="charliteral">'\0'</span>;</div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  uname(&systemInfo);</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span> </div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="comment">// The machine strings below are known ARM8 devices</span></div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  std::string machine(systemInfo.machine);</div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keywordflow">if</span> (machine.substr(0, 7) == <span class="stringliteral">"iPhone6"</span> || machine.substr(0, 7) == <span class="stringliteral">"iPhone7"</span> ||</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  machine.substr(0, 7) == <span class="stringliteral">"iPhone8"</span> || machine.substr(0, 7) == <span class="stringliteral">"iPhone9"</span> ||</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  machine.substr(0, 5) == <span class="stringliteral">"iPad4"</span> || machine.substr(0, 5) == <span class="stringliteral">"iPad5"</span> ||</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  machine.substr(0, 5) == <span class="stringliteral">"iPad6"</span> || machine.substr(0, 5) == <span class="stringliteral">"iPad7"</span>)</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  {</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  }</div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span> }</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span> </div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QuerySHA1()</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span> {</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="preprocessor">#if defined(__ANDROID__) && defined(__aarch64__)</span></div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_SHA1) != 0))</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="preprocessor">#elif defined(__ANDROID__) && defined(__aarch32__)</span></div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM) != 0) &&</div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_SHA1) != 0))</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch64__)</span></div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP) & HWCAP_SHA1) != 0)</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch32__)</span></div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP2) & HWCAP2_SHA1) != 0)</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="preprocessor">#elif defined(__APPLE__) && defined(__aarch64__)</span></div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="comment">// http://stackoverflow.com/questions/45637888/how-to-determine-armv8-features-at-runtime-on-ios</span></div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="keyword">struct </span>utsname systemInfo;</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  systemInfo.machine[0] = <span class="charliteral">'\0'</span>;</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  uname(&systemInfo);</div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span> </div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <span class="comment">// The machine strings below are known ARM8 devices</span></div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  std::string machine(systemInfo.machine);</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keywordflow">if</span> (machine.substr(0, 7) == <span class="stringliteral">"iPhone6"</span> || machine.substr(0, 7) == <span class="stringliteral">"iPhone7"</span> ||</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  machine.substr(0, 7) == <span class="stringliteral">"iPhone8"</span> || machine.substr(0, 7) == <span class="stringliteral">"iPhone9"</span> ||</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  machine.substr(0, 5) == <span class="stringliteral">"iPad4"</span> || machine.substr(0, 5) == <span class="stringliteral">"iPad5"</span> ||</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  machine.substr(0, 5) == <span class="stringliteral">"iPad6"</span> || machine.substr(0, 5) == <span class="stringliteral">"iPad7"</span>)</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  {</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  }</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span> }</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span> </div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QuerySHA2()</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span> {</div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span> <span class="preprocessor">#if defined(__ANDROID__) && defined(__aarch64__)</span></div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&</div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_SHA2) != 0))</div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span> <span class="preprocessor">#elif defined(__ANDROID__) && defined(__aarch32__)</span></div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="keywordflow">if</span> (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM) != 0) &&</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  ((android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_SHA2) != 0))</div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch64__)</span></div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP) & HWCAP_SHA2) != 0)</div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span> <span class="preprocessor">#elif defined(__linux__) && defined(__aarch32__)</span></div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP2) & HWCAP2_SHA2) != 0)</div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="preprocessor">#elif defined(__APPLE__) && defined(__aarch64__)</span></div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="comment">// http://stackoverflow.com/questions/45637888/how-to-determine-armv8-features-at-runtime-on-ios</span></div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="keyword">struct </span>utsname systemInfo;</div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  systemInfo.machine[0] = <span class="charliteral">'\0'</span>;</div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  uname(&systemInfo);</div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span> </div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <span class="comment">// The machine strings below are known ARM8 devices</span></div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  std::string machine(systemInfo.machine);</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="keywordflow">if</span> (machine.substr(0, 7) == <span class="stringliteral">"iPhone6"</span> || machine.substr(0, 7) == <span class="stringliteral">"iPhone7"</span> ||</div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  machine.substr(0, 7) == <span class="stringliteral">"iPhone8"</span> || machine.substr(0, 7) == <span class="stringliteral">"iPhone9"</span> ||</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  machine.substr(0, 5) == <span class="stringliteral">"iPad4"</span> || machine.substr(0, 5) == <span class="stringliteral">"iPad5"</span> ||</div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  machine.substr(0, 5) == <span class="stringliteral">"iPad6"</span> || machine.substr(0, 5) == <span class="stringliteral">"iPad7"</span>)</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  {</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  }</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span> }</div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span> </div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span> <span class="keywordtype">void</span> DetectArmFeatures()</div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span> {</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="comment">// The CPU_ProbeXXX's return false for OSes which</span></div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <span class="comment">// can't tolerate SIGILL-based probes</span></div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  g_hasNEON = CPU_QueryNEON() || CPU_ProbeNEON();</div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  g_hasCRC32 = CPU_QueryCRC32() || CPU_ProbeCRC32();</div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  g_hasPMULL = CPU_QueryPMULL() || CPU_ProbePMULL();</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  g_hasAES = CPU_QueryAES() || CPU_ProbeAES();</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  g_hasSHA1 = CPU_QuerySHA1() || CPU_ProbeSHA1();</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  g_hasSHA2 = CPU_QuerySHA2() || CPU_ProbeSHA2();</div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span> </div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="preprocessor">#if defined(__linux__) && defined(_SC_LEVEL1_DCACHE_LINESIZE)</span></div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="comment">// Glibc does not implement on some platforms. The runtime returns 0 instead of error.</span></div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="comment">// https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/posix/sysconf.c</span></div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keywordtype">int</span> cacheLineSize = sysconf(_SC_LEVEL1_DCACHE_LINESIZE);</div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="keywordflow">if</span> (cacheLineSize > 0)</div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  g_cacheLineSize = cacheLineSize;</div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span> </div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  *<span class="keyword">const_cast<</span><span class="keyword">volatile </span><span class="keywordtype">bool</span>*<span class="keyword">></span>(&g_ArmDetectionDone) = <span class="keyword">true</span>;</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span> }</div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span> </div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span> <span class="comment">// *************************** PowerPC and PowerPC64 ***************************</span></div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span> </div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span> <span class="preprocessor">#elif (CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64)</span></div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span> </div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_PowerpcDetectionDone = <span class="keyword">false</span>;</div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasAltivec = <span class="keyword">false</span>;</div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasPower7 = <span class="keyword">false</span>;</div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasPower8 = <span class="keyword">false</span>;</div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasAES = <span class="keyword">false</span>;</div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasSHA256 = <span class="keyword">false</span>;</div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span> <span class="keywordtype">bool</span> CRYPTOPP_SECTION_INIT g_hasSHA512 = <span class="keyword">false</span>;</div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span> word32 CRYPTOPP_SECTION_INIT g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;</div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span> </div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbeAltivec();</div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbePower7();</div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbePower8();</div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbeAES();</div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbeSHA256();</div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span> <span class="keyword">extern</span> <span class="keywordtype">bool</span> CPU_ProbeSHA512();</div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span> </div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span> <span class="preprocessor">#ifndef PPC_FEATURE_HAS_ALTIVEC</span></div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span> <span class="preprocessor"># define PPC_FEATURE_HAS_ALTIVEC 0x10000000</span></div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span> <span class="preprocessor">#ifndef PPC_FEATURE_ARCH_2_06</span></div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span> <span class="preprocessor"># define PPC_FEATURE_ARCH_2_06 0x00000100</span></div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="preprocessor">#ifndef PPC_FEATURE2_ARCH_2_07</span></div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="preprocessor"># define PPC_FEATURE2_ARCH_2_07 0x80000000</span></div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="preprocessor">#ifndef PPC_FEATURE2_VEC_CRYPTO</span></div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="preprocessor"># define PPC_FEATURE2_VEC_CRYPTO 0x02000000</span></div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span> </div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QueryAltivec()</div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span> {</div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span> <span class="preprocessor">#if defined(__linux__)</span></div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP) & PPC_FEATURE_HAS_ALTIVEC) != 0)</div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span> <span class="preprocessor">#elif defined(_AIX)</span></div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="keywordflow">if</span> (__power_vmx() != 0)</div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span> <span class="preprocessor">#elif defined(__APPLE__) && defined(__POWERPC__)</span></div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  <span class="comment">// http://stackoverflow.com/questions/45637888/how-to-determine-armv8-features-at-runtime-on-ios</span></div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="keyword">struct </span>utsname systemInfo;</div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  systemInfo.machine[0] = <span class="charliteral">'\0'</span>;</div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  uname(&systemInfo);</div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span> </div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="comment">// The machine strings below are known PPC machines</span></div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  std::string machine(systemInfo.machine);</div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  <span class="keywordflow">if</span> (machine.substr(0, 15) == <span class="stringliteral">"Power Macintosh"</span>)</div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  {</div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  }</div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span> }</div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span> </div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QueryPower7()</div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span> {</div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  <span class="comment">// Power7 and ISA 2.06</span></div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span> <span class="preprocessor">#if defined(__linux__)</span></div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP) & PPC_FEATURE_ARCH_2_06) != 0)</div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span> <span class="preprocessor">#elif defined(_AIX)</span></div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="keywordflow">if</span> (__power_7_andup() != 0)</div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span> }</div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span> </div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QueryPower8()</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span> {</div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  <span class="comment">// Power8 and ISA 2.07 provide in-core crypto.</span></div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span> <span class="preprocessor">#if defined(__linux__)</span></div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP2) & PPC_FEATURE2_ARCH_2_07) != 0)</div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span> <span class="preprocessor">#elif defined(_AIX)</span></div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="keywordflow">if</span> (__power_8_andup() != 0)</div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span> }</div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span> </div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QueryAES()</div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span> {</div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="comment">// Power8 and ISA 2.07 provide in-core crypto. Glibc</span></div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  <span class="comment">// 2.24 or higher is required for PPC_FEATURE2_VEC_CRYPTO.</span></div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span> <span class="preprocessor">#if defined(__linux__)</span></div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP2) & PPC_FEATURE2_VEC_CRYPTO) != 0)</div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span> <span class="preprocessor">#elif defined(_AIX)</span></div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  <span class="keywordflow">if</span> (__power_8_andup() != 0)</div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span> }</div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span> </div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QuerySHA256()</div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span> {</div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="comment">// Power8 and ISA 2.07 provide in-core crypto. Glibc</span></div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  <span class="comment">// 2.24 or higher is required for PPC_FEATURE2_VEC_CRYPTO.</span></div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span> <span class="preprocessor">#if defined(__linux__)</span></div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP2) & PPC_FEATURE2_VEC_CRYPTO) != 0)</div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span> <span class="preprocessor">#elif defined(_AIX)</span></div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="keywordflow">if</span> (__power_8_andup() != 0)</div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span> }</div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> CPU_QuerySHA512()</div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span> {</div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  <span class="comment">// Power8 and ISA 2.07 provide in-core crypto. Glibc</span></div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <span class="comment">// 2.24 or higher is required for PPC_FEATURE2_VEC_CRYPTO.</span></div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span> <span class="preprocessor">#if defined(__linux__)</span></div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  <span class="keywordflow">if</span> ((getauxval(AT_HWCAP2) & PPC_FEATURE2_VEC_CRYPTO) != 0)</div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span> <span class="preprocessor">#elif defined(_AIX)</span></div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  <span class="keywordflow">if</span> (__power_8_andup() != 0)</div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span> }</div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span> </div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span> <span class="keywordtype">void</span> DetectPowerpcFeatures()</div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span> {</div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  <span class="comment">// The CPU_ProbeXXX's return false for OSes which</span></div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  <span class="comment">// can't tolerate SIGILL-based probes, like Apple</span></div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  g_hasAltivec = CPU_QueryAltivec() || CPU_ProbeAltivec();</div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  g_hasPower7 = CPU_QueryPower7() || CPU_ProbePower7();</div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  g_hasPower8 = CPU_QueryPower8() || CPU_ProbePower8();</div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  <span class="comment">//g_hasPMULL = CPU_QueryPMULL() || CPU_ProbePMULL();</span></div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  g_hasAES = CPU_QueryAES() || CPU_ProbeAES();</div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  g_hasSHA256 = CPU_QuerySHA256() || CPU_ProbeSHA256();</div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  g_hasSHA512 = CPU_QuerySHA512() || CPU_ProbeSHA512();</div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span> </div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span> <span class="preprocessor">#if defined(_AIX) && defined(SC_L1C_DLS)</span></div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <span class="comment">// /usr/include/sys/systemcfg.h</span></div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  <span class="keywordtype">int</span> cacheLineSize = getsystemcfg(SC_L1C_DLS);</div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <span class="keywordflow">if</span> (cacheLineSize > 0)</div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  g_cacheLineSize = cacheLineSize;</div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span> <span class="preprocessor">#elif defined(__linux__) && defined(_SC_LEVEL1_DCACHE_LINESIZE)</span></div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  <span class="comment">// Glibc does not implement on some platforms. The runtime returns 0 instead of error.</span></div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  <span class="comment">// https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/posix/sysconf.c</span></div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  <span class="keywordtype">int</span> cacheLineSize = sysconf(_SC_LEVEL1_DCACHE_LINESIZE);</div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  <span class="keywordflow">if</span> (cacheLineSize > 0)</div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  g_cacheLineSize = cacheLineSize;</div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span> </div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  *<span class="keyword">const_cast<</span><span class="keyword">volatile </span><span class="keywordtype">bool</span>*<span class="keyword">></span>(&g_PowerpcDetectionDone) = <span class="keyword">true</span>;</div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span> }</div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span> </div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span> NAMESPACE_END</div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span> </div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span> <span class="comment">// *************************** C++ Static Initialization ***************************</span></div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span> </div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span> ANONYMOUS_NAMESPACE_BEGIN</div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span> </div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span> <span class="keyword">class </span>InitCpu</div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span> {</div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  InitCpu()</div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  {</div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span> <span class="preprocessor">#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64</span></div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  CryptoPP::DetectX86Features();</div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span> <span class="preprocessor">#elif CRYPTOPP_BOOL_ARM32 || CRYPTOPP_BOOL_ARM64</span></div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  CryptoPP::DetectArmFeatures();</div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span> <span class="preprocessor">#elif CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64</span></div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  CryptoPP::DetectPowerpcFeatures();</div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  }</div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span> };</div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span> </div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span> <span class="comment">// This is not really needed because HasSSE() and friends can dynamically initialize.</span></div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span> <span class="comment">// Everything depends on CPU features so we initialize it once at load time.</span></div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span> <span class="comment">// Dynamic initialization will be used if init priorities are not available.</span></div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span> </div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span> <span class="preprocessor">#if HAVE_GCC_INIT_PRIORITY</span></div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  <span class="keyword">const</span> InitCpu s_init __attribute__ ((init_priority (CRYPTOPP_INIT_PRIORITY + 10))) = InitCpu();</div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span> <span class="preprocessor">#elif HAVE_MSC_INIT_PRIORITY</span></div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span> <span class="preprocessor"> #pragma warning(disable: 4075)</span></div><div class="line"><a name="l00768"></a><span class="lineno"> 768</span> <span class="preprocessor"> #pragma init_seg(".CRT$XCU")</span></div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  <span class="keyword">const</span> InitCpu s_init;</div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span> <span class="preprocessor"> #pragma warning(default: 4075)</span></div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <span class="keyword">const</span> InitCpu s_init;</div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span> </div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span> ANONYMOUS_NAMESPACE_END</div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span> </div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span> <span class="preprocessor">#endif // CRYPTOPP_IMPORTS</span></div><div class="ttc" id="misc_8h_html"><div class="ttname"><a href="misc_8h.html">misc.h</a></div><div class="ttdoc">Utility functions for the Crypto++ library. </div></div>
<div class="ttc" id="config_8h_html"><div class="ttname"><a href="config_8h.html">config.h</a></div><div class="ttdoc">Library configuration file. </div></div>
<div class="ttc" id="stdcpp_8h_html"><div class="ttname"><a href="stdcpp_8h.html">stdcpp.h</a></div><div class="ttdoc">Common C++ header files. </div></div>
<div class="ttc" id="pch_8h_html"><div class="ttname"><a href="pch_8h.html">pch.h</a></div><div class="ttdoc">Precompiled header file. </div></div>
<div class="ttc" id="cpu_8h_html"><div class="ttname"><a href="cpu_8h.html">cpu.h</a></div><div class="ttdoc">Functions for CPU features and intrinsics. </div></div>
<div class="ttc" id="namespace_crypto_p_p_html"><div class="ttname"><a href="namespace_crypto_p_p.html">CryptoPP</a></div><div class="ttdoc">Crypto++ library namespace. </div></div>
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