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From: "Alex Vinokur" <alexvn AT connect DOT to>
Subject: objdump : inaccurate demangling for foo(char* const)
Date: Fri, 19 Sep 2003 06:37:44 +0300
Lines: 95
Message-ID: <bkdtn1$597$2@sea.gmane.org>
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==========================================
Windows 2000 Professional
CYGWIN_NT-5.0 1.5.4(0.94/3/2)
GNU gcc version 3.2 20020927 (prerelease)
GNU objdump 2.14.90 20030901
==========================================


It seems that objdump inaccurately demangles foo(char* const).
  Low-level symbol name of foo(char* const) is valid : __Z3fooPc
  But user-level symbol name obtained after demangling is inaccurate : foo(char*).



====== C++ code : BEGIN ======
// File t.cpp

void foo3 (char*) {}

====== C++ code : END ========



====== Compilation : BEGIN ======

$ g++ -c t.cpp

====== Compilation : END ========



====== objdump : BEGIN ======

$ objdump -d t.o

t.o:     file format pe-i386

Disassembly of section .text:

00000000 <__Z3fooPc>:    // OK
   0: 55                    push   %ebp
   1: 89 e5                 mov    %esp,%ebp
   3: 5d                    pop    %ebp
   4: c3                    ret
   5: 90                    nop
   6: 90                    nop
   7: 90                    nop
   8: 90                    nop
   9: 90                    nop
   a: 90                    nop
   b: 90                    nop
   c: 90                    nop
   d: 90                    nop
   e: 90                    nop
   f: 90                    nop





$ objdump -Cd t.o


t.o:     file format pe-i386

Disassembly of section .text:

00000000 <foo(char*)>:    // Must be foo(char* const)
   0: 55                    push   %ebp
   1: 89 e5                 mov    %esp,%ebp
   3: 5d                    pop    %ebp
   4: c3                    ret
   5: 90                    nop
   6: 90                    nop
   7: 90                    nop
   8: 90                    nop
   9: 90                    nop
   a: 90                    nop
   b: 90                    nop
   c: 90                    nop
   d: 90                    nop
   e: 90                    nop
   f: 90                    nop

====== objdump : END ========

--
   =====================================
   Alex Vinokur
     mailto:alexvn AT connect DOT to
     http://mathforum.org/library/view/10978.html
   =====================================





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