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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Please post questions to
<a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a>. This list is intended for automated bugzilla emails only.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">--paulr<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> llvm-bugs [mailto:llvm-bugs-bounces@lists.llvm.org]
<b>On Behalf Of </b>??? via llvm-bugs<br>
<b>Sent:</b> Wednesday, October 12, 2016 1:41 AM<br>
<b>To:</b> llvm-bugs@lists.llvm.org<br>
<b>Subject:</b> [llvm-bugs] Question about debug symbol<o:p></o:p></span></p>
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<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">Hello LLVM admins,<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">I'm jinmoo seok, live in seout, Korea.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif""> <o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">i have some problem about debug symbol.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">i want to how to solve this problem, so i email you.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif""> <o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">source code is :<o:p></o:p></span></p>
<p style="margin-left:15.0pt"><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">#include<iostream><o:p></o:p></span></p>
<p style="margin-left:15.0pt"><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">int main() {<o:p></o:p></span></p>
<p style="margin-left:30.0pt"><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">std::cout << "hello world" << std::endl;<o:p></o:p></span></p>
<p style="margin-left:30.0pt"><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">return 0;<o:p></o:p></span></p>
<p style="margin-left:15.0pt"><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">}<o:p></o:p></span></p>
<p style="margin-left:15.0pt"><span style="font-size:10.0pt;font-family:"Gulim","sans-serif""> <o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">this is simple source.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">but when i build it width debug symbol using clang, binary size is 100kb.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">when using gcc, binary size is 19kb<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif""> <o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">i tryed "readelf -wi <binary>"
<o:p></o:p></span></p>
<pre style="background:#EFF0F1;max-height: 600px;word-wrap: normal;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;overflow:auto;word-spacing:0px"><code><span style="font-family:Consolas;color:#242729;border:none windowtext 1.0pt;padding:0in;background:#EFF0F1">readelf: dwarf_loclist_form_expr_b: Invalid argument [dwarf_loclist_from_expr_b(279)]<o:p></o:p></span></code></pre>
<pre style="background:#EFF0F1"><code><span style="font-family:Consolas;color:#242729;border:none windowtext 1.0pt;padding:0in;background:#EFF0F1"><237> DW_AT_data_member_location: 0 byte block: ()<o:p></o:p></span></code></pre>
<pre style="background:#EFF0F1"><code><span style="font-family:Consolas;color:#242729;border:none windowtext 1.0pt;padding:0in;background:#EFF0F1"><4><23a>: Abbrev Number: 9 (DW_TAG_member)<o:p></o:p></span></code></pre>
<pre style="background:#EFF0F1"><code><span style="font-family:Consolas;color:#242729;border:none windowtext 1.0pt;padding:0in;background:#EFF0F1"><23b> DW_AT_name : (indirect string) __precision_<o:p></o:p></span></code></pre>
<pre style="background:#EFF0F1"><code><span style="font-family:Consolas;color:#242729;border:none windowtext 1.0pt;padding:0in;background:#EFF0F1"><23f> DW_AT_type : <0x799><o:p></o:p></span></code></pre>
<pre style="background:#EFF0F1"><code><span style="font-family:Consolas;color:#242729;border:none windowtext 1.0pt;padding:0in;background:#EFF0F1"><243> DW_AT_decl_file : 2<o:p></o:p></span></code></pre>
<pre style="background:#EFF0F1"><code><span style="font-family:Consolas;color:#242729;border:none windowtext 1.0pt;padding:0in;background:#EFF0F1"><244> DW_AT_decl_line : 363</span></code><span style="font-family:Consolas;color:#242729"><o:p></o:p></span></pre>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">this message is repeatedly output.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">what does message mean?<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif""> <o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">and i tryed "readelf -s <binary>"<o:p></o:p></span></p>
<p style="margin-left:15.0pt"><span style="font-size:10.0pt;font-family:"Gulim","sans-serif""><address> 0 NOTYPE LOCAL DEFAULT 31<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">this message is output too many.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">why debug_str size is too big?<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif""> <o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">i test both clang34 and clang38<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">clang38's binary size is nearly as twice as clang34's binary.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif""> <o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">i wan't to why this problem happen.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif""> <o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">My environment:<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">i386<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif"">freebsd11<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif""> <o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Gulim","sans-serif""> <o:p></o:p></span></p>
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