Re: gcc and -fPIC

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On Sun, 17 Oct 2004, Daniel Jacobowitz wrote:

On Sun, Oct 17, 2004 at 08:57:15PM +0200, Gerhard Wiesinger wrote:
        delete x;
 8048578:       83 ec 0c                sub    $0xc,%esp
 804857b:       ff 75 f4                pushl  0xfffffff4(%ebp)
 804857e:       e8 4d fe ff ff          call   80483d0 <_ZdlPv@plt>
 8048583:       83 c4 10                add    $0x10,%esp
        delete [] xarray;
 8048586:       83 7d f0 00             cmpl   $0x0,0xfffffff0(%ebp)
 804858a:       74 0e                   je     804859a <main+0xba>
 804858c:       83 ec 0c                sub    $0xc,%esp
 804858f:       ff 75 f0                pushl  0xfffffff0(%ebp)
 8048592:       e8 79 fe ff ff          call   8048410 <_ZdaPv@plt>
 8048597:       83 c4 10                add    $0x10,%esp
}


I got some symbol output, but not the expected one.

But it shouldn't be to difficult to implement because the DYNAMIC SYMBOL
table above has already the correct symbol.

That's the output I would expect. If you would rather see the longer form, pipe the output to c++filt.


OK, piping through c++filt works well. As I specified the -C switch (demangle C++) I would expect that this is demangled too.


But it looks pretty well now :-)

A diff looks like (wthout and with c++filt):
-080483c0 <_ZdlPv@plt-0x10>:
+080483c0 <operator delete(void*)@plt-0x10>:
  80483c0:      ff 35 24 98 04 08       pushl  0x8049824
  80483c6:      ff 25 28 98 04 08       jmp    *0x8049828
  80483cc:      00 00                   add    %al,(%eax)

         delete x;
  8048578:      83 ec 0c                sub    $0xc,%esp
  804857b:      ff 75 f4                pushl  0xfffffff4(%ebp)
- 804857e:      e8 4d fe ff ff          call   80483d0 <_ZdlPv@plt>
+ 804857e:      e8 4d fe ff ff          call   80483d0 <operator delete(void*)@plt>
  8048583:      83 c4 10                add    $0x10,%esp

Ciao,
Gerhard

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