<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On 18 October 2016 at 09:58, Ivan Kush via cfe-dev <span dir="ltr"><<a href="mailto:cfe-dev@lists.llvm.org" target="_blank">cfe-dev@lists.llvm.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div>thanks a lot!</div><div>with "-cc1" the compiler doesn't understand "<span style="font-size:12.8px">-Xclang" parameter. </span></div><span class="gmail-"><div> </div><blockquote><div><span style="font-size:12.8px">-cc1 -std=c++1z -Xclang -ast-dump -fsyntax-only test_deb.cpp</span></div></blockquote><div> </div></span><div><span style="font-size:12.8px">So deleted </span>"<span style="font-size:12.8px">-Xclang", but in that case AST doesn't output to console. </span></div><blockquote><div> </div></blockquote><blockquote><div><span style="font-size:12.8px">-cc1 -std=c++1z -ast-dump -fsyntax-only test_deb.cpp</span></div></blockquote><div> </div><div><span style="font-size:12.8px">Does someone know what parameters should pass in that case, in order to output AST to console?</span></div></blockquote><div><br></div><div>You don't need 'fsyntax-only' when dumping the AST, so this should work:</div><div><br></div><div> <span style="font-size:12.800000190734863px">-cc1 -std=c++1z -ast-dump test_deb.cpp</span></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><span class="gmail-"><div>-- <br>Best wishes,</div><div>Ivan Kush</div><div> </div><div> </div><div> </div></span><div>18.10.2016, 11:12, "Serge Pavlov" <<a href="mailto:sepavloff@gmail.com" target="_blank">sepavloff@gmail.com</a>>:</div><div class="gmail-HOEnZb"><div class="gmail-h5"><blockquote type="cite"><div>You need to pass argument "-cc1" to the compiler in debug session. In your case parameters must be:<div><span style="font-size:12.8px">-cc1 -std=c++1z -Xclang -ast-dump -fsyntax-only test_deb.cpp</span></div><div> </div><div><span style="font-size:12.8px">Without "-cc1" clang works as driver executing other tools to make job, with "-cc1" it works as compiler.</span></div></div><div> <div><div>Thanks,<br>--Serge</div></div> <div><span>2016-10-18 14</span>:54 GMT+07:00 Ivan Kush via cfe-dev <span><<a href="mailto:cfe-dev@lists.llvm.org" target="_blank">cfe-dev@lists.llvm.org</a>></span>:<blockquote style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div><div>I want to learn clang internals and how it works. But llvm::sys::ExecuteAndWait executes in the debugger and that's all, finish, console output with my AST (I passes to clang "-ast-dump"). It didn't jump in the Lexer.cpp, Sema.cpp, etc. What should I do in the debugger, in order to see how Lexer, Sema work?</div><div> </div><div>My steps in the debugger:</div><div> </div><div>1) compiled debug version of llvm and clang</div><div> </div><div>2) created a source file "test_deb.cpp" with the following code</div><div> </div><div>enum class Enum : int</div><div>{</div><div> kOne,</div><div> kTwo</div><div>};</div><div> </div><div>int f(int x) {</div><div> int result = (x / 42);</div><div> return result;</div><div>}</div><div> </div><div>int main()</div><div>{</div><div> return f(4);</div><div>}</div><div> </div><div>3) launch clang-4.0 in in the debugger with the following parameters:</div><div>-std=c++1z -Xclang -ast-dump -fsyntax-only test_deb.cpp</div><div> </div><div>4) and begin to learn how all work:</div><div>the "int main" in driver.cpp</div><div> </div><div>in driver.cpp is called "ExecuteCompilation" of "Driver"</div><div> TheDriver.ExecuteCompilation(*<wbr>C, FailingCommands); </div><div> </div><div>where called "ExecuteJobs" of "Compilation" (the file Compilation.cpp):</div><div> C.ExecuteJobs(C.getJobs(), FailingCommands);</div><div> </div><div>in the func ExecuteJobs called ExecuteCommand </div><div> if (int Res = ExecuteCommand(Job, FailingCommand)) {</div><div> </div><div>that calls "Execute" of "Command" (the file Jobs.cpp):</div><div> </div><div>where called a func "ExecuteAnddWait" of "llvm::sys"</div><div> </div><div> return llvm::sys::ExecuteAndWait(<wbr>Executable, Argv.data(), /*env*/ nullptr,</div><div> Redirects, /*secondsToWait*/ 0,</div><div> /*memoryLimit*/ 0, ErrMsg,</div><div> ExecutionFailed);</div><div> </div><div>but the "Executable" is "...path/clang-4.0" - the file, that I launched in the debugger o__O</div><div> </div><div>5) so llvm::sys::ExecuteAndWait(<wbr>Executable,...) is called and that's all, finish, console output with my AST. It didn't jump in the Lexer.cpp, Sema.cpp, etc.</div><div> </div><div>What should I do in the debugger, in order to see how Lexer, Sema work?</div></div><div><span><font color="#888888"> </font></span></div><div><span><font color="#888888">-- <br>Best wishes,</font></span></div><div><span><font color="#888888">Ivan Kush</font></span></div><div><span><font color="#888888"> </font></span></div><br>______________________________<wbr>_________________<br>cfe-dev mailing list<br><a href="mailto:cfe-dev@lists.llvm.org" target="_blank">cfe-dev@lists.llvm.org</a><br><a href="http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev" target="_blank">http://lists.llvm.org/cgi-bin/<wbr>mailman/listinfo/cfe-dev</a><br> </blockquote></div></div></blockquote></div></div><br>______________________________<wbr>_________________<br>
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