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<div class="title">backtrace.cpp</div> </div>
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<a href="backtrace_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*******************************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * tlx/backtrace.cpp</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Part of tlx - http://panthema.net/tlx</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Copyright (C) 2008-2017 Timo Bingmann <[email protected]></span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> *</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * All rights reserved. Published under the Boost Software License, Version 1.0</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> ******************************************************************************/</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <<a class="code" href="backtrace_8hpp.html">tlx/backtrace.hpp</a>></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <<a class="code" href="unused_8hpp.html">tlx/unused.hpp</a>></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <cstdarg></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <cstdio></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <cstdlib></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#if __linux__</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <cxxabi.h></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <execinfo.h></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <signal.h></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <unistd.h></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">namespace </span><a class="code" href="namespacetlx.html">tlx</a> {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="namespacetlx.html#a5e964500195bf49264036402214d61ed"> 30</a></span> <span class="keywordtype">void</span> <a class="code" href="namespacetlx.html#a5e964500195bf49264036402214d61ed">print_raw_backtrace</a>(FILE* out, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> max_frames,</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* fmt, ...) {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordtype">char</span> buffer[1024];</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordtype">size_t</span> p = 0;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  va_list args;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  va_start(args, fmt);</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  p += vsnprintf(buffer + p, <span class="keyword">sizeof</span>(buffer) - p - 1, fmt, args);</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#if __linux__</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="comment">// storage array for stack trace address data</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">void</span>** addrlist = <span class="keyword">reinterpret_cast<</span><span class="keywordtype">void</span>**<span class="keyword">></span>(</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  alloca(<span class="keyword">sizeof</span>(<span class="keywordtype">void</span>*) * max_frames));</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">// retrieve current stack addresses</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">int</span> addrlen = backtrace(addrlist, max_frames);</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < addrlen; ++i) {</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">if</span> (addrlist[i] == <span class="keyword">nullptr</span>)</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  p += snprintf(buffer + p, <span class="keyword">sizeof</span>(buffer) - p - 1, <span class="stringliteral">" %p"</span>, addrlist[i]);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  buffer[p + 1] = 0;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  fprintf(out, <span class="stringliteral">"%s\n"</span>, buffer);</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">#else</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  fprintf(out, <span class="stringliteral">"(backtrace not supported on this platform)\n"</span>);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="namespacetlx.html#a5a63b398e6678264958fb8590e9332bf">tlx::unused</a>(max_frames);</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="preprocessor">#endif</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>  va_end(args);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> }</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div><div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="namespacetlx.html#a1d2bac4967f005d9dd31c0c300eef091"> 69</a></span> <span class="keywordtype">void</span> <a class="code" href="namespacetlx.html#a5e964500195bf49264036402214d61ed">print_raw_backtrace</a>(FILE* out, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> max_frames) {</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> <a class="code" href="namespacetlx.html#a5e964500195bf49264036402214d61ed">print_raw_backtrace</a>(out, max_frames, <span class="stringliteral">"backtrace:"</span>);</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"><a class="line" href="namespacetlx.html#adad32b2f09919dea0ffb70cecfa4ee70"> 73</a></span> <span class="keywordtype">void</span> <a class="code" href="namespacetlx.html#adad32b2f09919dea0ffb70cecfa4ee70">print_cxx_backtrace</a>(FILE* out, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> max_frames) {</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  fprintf(out, <span class="stringliteral">"backtrace:\n"</span>);</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">#if __linux__</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// storage array for stack trace address data</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">void</span>** addrlist = <span class="keyword">reinterpret_cast<</span><span class="keywordtype">void</span>**<span class="keyword">></span>(</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  alloca(<span class="keyword">sizeof</span>(<span class="keywordtype">void</span>*) * max_frames));</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="comment">// retrieve current stack addresses</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">int</span> addrlen = backtrace(addrlist, max_frames);</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>  <span class="keywordflow">if</span> (addrlen == 0) {</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  fprintf(out, <span class="stringliteral">" <empty, possibly corrupt>\n"</span>);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">return</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> </div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">// resolve addresses into strings containing "filename(function+address)",</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// this array must be free()-ed</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordtype">char</span>** symbollist = backtrace_symbols(addrlist, addrlen);</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">// allocate string which will be filled with the demangled function name</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">size_t</span> funcnamesize = 256;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordtype">char</span>* funcname = <span class="keyword">reinterpret_cast<</span><span class="keywordtype">char</span>*<span class="keyword">></span>(alloca(funcnamesize));</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="comment">// iterate over the returned symbol lines. skip the first, it is the</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// address of this function.</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < addrlen; i++)</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="keywordtype">char</span>* begin_name = 0, * begin_offset = 0, * end_offset = 0;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">// find parentheses and +address offset surrounding the mangled name:</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">// ./module(function+0x15c) [0x8048a6d]</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">for</span> (<span class="keywordtype">char</span>* p = symbollist[i]; *p; ++p)</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  {</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">if</span> (*p == <span class="charliteral">'('</span>)</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  begin_name = p;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (*p == <span class="charliteral">'+'</span>)</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  begin_offset = p;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (*p == <span class="charliteral">')'</span> && begin_offset) {</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  end_offset = p;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  }</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">if</span> (begin_name && begin_offset && end_offset</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  && begin_name < begin_offset)</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  {</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  *begin_name++ = <span class="charliteral">'\0'</span>;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  *begin_offset++ = <span class="charliteral">'\0'</span>;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  *end_offset = <span class="charliteral">'\0'</span>;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="comment">// mangled name is now in [begin_name, begin_offset) and caller</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// offset in [begin_offset, end_offset). now apply</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// __cxa_demangle():</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">int</span> status;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordtype">char</span>* ret = abi::__cxa_demangle(begin_name,</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  funcname, &funcnamesize, &status);</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">if</span> (status == 0) {</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  funcname = ret; <span class="comment">// use possibly realloc()-ed string</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  fprintf(out, <span class="stringliteral">" %s : %s+%s\n"</span>,</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  symbollist[i], funcname, begin_offset);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  }</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// demangling failed. Output function name as a C function with</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// no arguments.</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  fprintf(out, <span class="stringliteral">" %s : %s()+%s\n"</span>,</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  symbollist[i], begin_name, begin_offset);</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  }</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  {</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// couldn't parse the line? print the whole line.</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  fprintf(out, <span class="stringliteral">" %s\n"</span>, symbollist[i]);</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>  }</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  free(symbollist);</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="preprocessor">#else</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>  fprintf(out, <span class="stringliteral">" (not supported on this platform)\n"</span>);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="namespacetlx.html#a5a63b398e6678264958fb8590e9332bf">tlx::unused</a>(max_frames);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</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="preprocessor">#if __linux__</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="keyword">static</span> <span class="keywordtype">void</span> segv_backtrace_handler(<span class="keywordtype">int</span> sig) {</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <a class="code" href="namespacetlx.html#a5a63b398e6678264958fb8590e9332bf">tlx::unused</a>(sig);</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">void</span>* addr[16];</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordtype">size_t</span> size;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  size = backtrace(addr, 16);</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  fprintf(stderr, <span class="stringliteral">"Caught SIGSEGV (segmentation fault). Backtrace:\n"</span>);</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  backtrace_symbols_fd(addr + 1, size - 1, STDERR_FILENO);</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  exit(1);</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> }</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </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"><a class="line" href="namespacetlx.html#a393c17d312eb726b7e5631ecef50abee"> 178</a></span> <span class="keywordtype">void</span> <a class="code" href="namespacetlx.html#a393c17d312eb726b7e5631ecef50abee">enable_segv_backtrace</a>() {</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="preprocessor">#if __linux__</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  signal(SIGSEGV, segv_backtrace_handler);</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  printf(<span class="stringliteral">"enable_segv_backtrace(): not supported on this platform.\n"</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> </div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> } <span class="comment">// namespace tlx</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment">/******************************************************************************/</span></div><div class="ttc" id="namespacetlx_html"><div class="ttname"><a href="namespacetlx.html">tlx</a></div><div class="ttdef"><b>Definition:</b> <a href="exclusive__scan_8hpp_source.html#l00017">exclusive_scan.hpp:17</a></div></div>
<div class="ttc" id="unused_8hpp_html"><div class="ttname"><a href="unused_8hpp.html">unused.hpp</a></div></div>
<div class="ttc" id="namespacetlx_html_a5a63b398e6678264958fb8590e9332bf"><div class="ttname"><a href="namespacetlx.html#a5a63b398e6678264958fb8590e9332bf">tlx::unused</a></div><div class="ttdeci">void unused(Types &&...)</div><div class="ttdef"><b>Definition:</b> <a href="unused_8hpp_source.html#l00020">unused.hpp:20</a></div></div>
<div class="ttc" id="backtrace_8hpp_html"><div class="ttname"><a href="backtrace_8hpp.html">backtrace.hpp</a></div></div>
<div class="ttc" id="namespacetlx_html_adad32b2f09919dea0ffb70cecfa4ee70"><div class="ttname"><a href="namespacetlx.html#adad32b2f09919dea0ffb70cecfa4ee70">tlx::print_cxx_backtrace</a></div><div class="ttdeci">void print_cxx_backtrace(FILE *out, unsigned int max_frames)</div><div class="ttdoc">Print a demangled stack backtrace of the caller function to FILE* out. </div><div class="ttdef"><b>Definition:</b> <a href="backtrace_8cpp_source.html#l00073">backtrace.cpp:73</a></div></div>
<div class="ttc" id="namespacetlx_html_a5e964500195bf49264036402214d61ed"><div class="ttname"><a href="namespacetlx.html#a5e964500195bf49264036402214d61ed">tlx::print_raw_backtrace</a></div><div class="ttdeci">void print_raw_backtrace(FILE *out, unsigned int max_frames, const char *fmt,...)</div><div class="ttdoc">Print a plain hex stack backtrace of the called function to FILE* out, prefixed with the given printf...</div><div class="ttdef"><b>Definition:</b> <a href="backtrace_8cpp_source.html#l00030">backtrace.cpp:30</a></div></div>
<div class="ttc" id="namespacetlx_html_a393c17d312eb726b7e5631ecef50abee"><div class="ttname"><a href="namespacetlx.html#a393c17d312eb726b7e5631ecef50abee">tlx::enable_segv_backtrace</a></div><div class="ttdeci">void enable_segv_backtrace()</div><div class="ttdoc">Install SIGSEGV signal handler and output backtrace on segmentation fault. </div><div class="ttdef"><b>Definition:</b> <a href="backtrace_8cpp_source.html#l00178">backtrace.cpp:178</a></div></div>
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