U++ forum: Welcome to the forum

Re: Problems debugging with Visual C++ [message #43657 is a reply to message #43650]

Thu, 18 September 2014 08:48

frankdeprins
Messages: 99
Registered: September 2008
Location: Antwerp - Belgium

Member

Hello Mirek,

The extra logging lines added the next content to theide.log:

pSym->Flags & IMAGEHLP_SYMBOL_INFO_REGRELATIVE = 16
pSym->Register == CV_ALLREG_VFRAME = false
pSym->Register = 22

These log lines occurred several times, of course, but always with exactly the same values.
After that, I changed if(pSym->Register == CV_ALLREG_VFRAME) to: if(true)
But even then, the result was that I only got i and i64 and both watches were still 0.
I guess commenting out the register test will not change it, as we already know the else block is executed because of the presence of the new logging lines put in it.
Anyway, this is the final state of the code as I ran it:

BOOL CALLBACK Pdb::EnumLocals(PSYMBOL_INFO pSym, ULONG SymbolSize, PVOID UserContext)
{
   LocalsCtx& c = *(LocalsCtx *)UserContext;

   if(pSym->Tag == SymTagFunction)
      return TRUE;

   Val& v = (pSym->Flags & IMAGEHLP_SYMBOL_INFO_PARAMETER ? c.param : c.local).GetAdd(pSym->Name);
   v.address = (adr_t)pSym->Address;
RLOG("-------------------------");
RDUMP(Format64Hex(v.address));
   if(pSym->Flags & IMAGEHLP_SYMBOL_INFO_REGISTER)
      v.address = pSym->Register;
   else {
      RDUMP(pSym->Flags & IMAGEHLP_SYMBOL_INFO_REGRELATIVE);
      RDUMP(pSym->Register == CV_ALLREG_VFRAME);
      RDUMP(pSym->Register);
      if(pSym->Flags & IMAGEHLP_SYMBOL_INFO_REGRELATIVE) {
         if(true/*pSym->Register == CV_ALLREG_VFRAME*/) {
         #ifdef CPU_64
            if(c.pdb->win64)
               v.address += c.pdb->GetCpuRegister(*c.context, CV_AMD64_RBP);
            else
         #endif
               v.address += (adr_t)c.pdb->GetCpuRegister(*c.context, CV_REG_EBP);
         }
         else
            v.address += (adr_t)c.pdb->GetCpuRegister(*c.context, pSym->Register);
         RDUMP(v.address);
      }
   }
   if(pSym->Flags & IMAGEHLP_SYMBOL_INFO_FRAMERELATIVE) {
                RDUMP(Format64Hex(c.frame));
      v.address += c.frame;
        }
   c.pdb->TypeVal(v, pSym->TypeIndex, (adr_t)pSym->ModBase);
   RLOG("LOCAL " << pSym->Name << ": " << Format64Hex(v.address));
   return TRUE;
}

Attached, you find the log file.

Frank

Attachment: theide.log
(Size: 1.96KB, Downloaded 252 times)

[Updated on: Thu, 18 September 2014 08:48]

Report message to a moderator