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POGDB backtrace tells me symbol name but not source file
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  1. POGDB backtrace tells me symbol name but not source file
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    copied!<p>I have a problem where I can't seem to step into some functions using GDB.</p> <p>I'm using the "PImpl idiom", where I have an inline class in my .cpp file, containing functions that get called from the publicly visible class, like so:</p> <pre><code>// Foo.cpp class FooImpl { public: void open() { // ... } }; Foo::open() { // Impl is a FooImpl* impl-&gt;open(); } </code></pre> <p>Using the debugger, I can't seem to step into <code>FooImpl::open()</code>. </p> <ul> <li>I know for sure that the call is not inlined (I'm using <code>-fno-inline</code> and I can see the <code>call</code> instruction in the assembly);</li> <li>I can set a breakpoint inside the function and GDB can hit that breakpoint and tell me its name and what function I'm in. </li> <li>However, it will not tell me the source file (even though it's the same file as Foo::open())</li> <li>I can't step INSIDE the function; when I execute <code>step</code>, it simply steps over the call.</li> </ul> <p>This is what my stacktrace looks like when I'm on a breakpoint inside the <code>FooImpl::open()</code> call:</p> <pre><code>#0 0x080eee52 in macawi::PowerMateInputImpl::open(std::string) () #1 0x080ee766 in macawi::PowerMateInput::open (this=0x83cf204) at ../../app/hal/interfaces/powermateinput_linux.cpp:126 #2 0x08137455 in macawi::ActorInput::backgroundLoop (this=0x83cf204) at ../../app/common/actors/actorinput.cpp:51 </code></pre> <p>Can anyone tell me why GDB can't determine the source location of the top stack frame, even though it's in the same file as stack frame #1?</p> <p>(For the record, I'm using a graphical debugger that uses GDB in the background (Qt Creator), but the same things hold when I execute GDB directly).</p> <hr> <p>EDIT: The compilation command line looks like this:</p> <pre><code>g++ -c -pipe -g -O0 -fno-inline -ggdb -fPIC -Wall -W ...(defines, include dirs, object file, source file) </code></pre>
 

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