<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 14 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:1953514884;
mso-list-type:hybrid;
mso-list-template-ids:-344689504 67698703 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l0:level1
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level2
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level3
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l0:level4
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level5
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level6
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l0:level7
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level8
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level9
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D">Bump?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<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""> Yu, Chan KitX
<br>
<b>Sent:</b> Thursday, December 18, 2014 10:07 AM<br>
<b>To:</b> llvmdev@cs.uiuc.edu<br>
<b>Subject:</b> Trouble executing binary compiled by llvm<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hello all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I tried compiling llvm 3.3 (I’m using this version because of my work requirement) and it went on happily. Then when I tried compiling a sample C code:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">int main(){return 0;}<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">with:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">clang -L/usr/lib/x86_64-poky-linux/4.8.2/ -I/usr/lib/x86_64-poky-linux/4.8.2/ -target x86_64-poky-linux test.c -gcc-toolchain /usr/lib/gcc/x86_64-poky-linux/4.8.2/ -v
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal">and executing the resulting a.out file, it said:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">sh : ./a.out: No such file or directory<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal">Here’s the verbose message of the compilation:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">_64-poky-linux/4.8.2/ -target x86_64-poky-linux test.c -gcc-toolchain /usr/lib/gcc/x86_64-poky-linux/4.8.2/ -v<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">clang version 3.3 (tags/RELEASE_33/final)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">Target: x86_64-poky-linux<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">Thread model: posix<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">"/usr/bin/clang" -cc1 -triple x86_64-poky-linux -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name test.c -mrelocation-model static -mdisable-fp-elim -fmath-errno -masm-verbose
-mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-linker-version 2.24 -v -resource-dir /usr/bin/../lib/clang/3.3 -I /usr/lib/x86_64-poky-linux/4.8.2/ -internal-isystem /usr/local/include -internal-isystem /usr/bin/../lib/clang/3.3/include -internal-externc-isystem
/include -internal-externc-isystem /usr/include -fdebug-compilation-dir /home/root -ferror-limit 19 -fmessage-length 80 -mstackrealign -fobjc-runtime=gcc -fobjc-default-synthesize-properties -fdiagnostics-show-option -fcolor-diagnostics -backend-option -vectorize-loops
-o /tmp/test-1ngTem.o -x c test.c<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">clang -cc1 version 3.3 based upon LLVM 3.3 default target x86_64-poky-linux-gnu<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">ignoring nonexistent directory "/usr/local/include"<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">ignoring nonexistent directory "/usr/bin/../lib/clang/3.3/include"<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">ignoring nonexistent directory "/include"<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">#include "..." search starts here:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">#include <...> search starts here:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">/usr/lib/x86_64-poky-linux/4.8.2<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">/usr/include<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">End of search list.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">"/usr/bin/x86_64-poky-linux-ld" --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o a.out /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o -L/usr/lib/x86_64-poky-linux/4.8.2/
-L/usr/lib/x86_64-poky-linux -L/lib -L/usr/lib /tmp/test-1ngTem.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib/crtend.o /usr/lib/crtn.o<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have several questions here:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>An obvious one; Why my error is happening?<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>I also noticed that the verbose message didn’t find (or try to find) a candidate GCC installation . Any possible reason?<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>It seems like LLVM+Clang depends on gcc in some way. In what way do LLVM+Clang depend on gcc?<o:p></o:p></p>
<p class="MsoListParagraph"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Chan Kit<o:p></o:p></p>
</div>
</body>
</html>