gecko-dev/ef/Tools/Monitor/Symbols.cpp

145 lines
3.4 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
// Symbols.cpp
//
// Scott M. Silver
//
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include "Debugee.h"
#include <assert.h>
#include "Symbols.h"
bool lookupLiteral(const char* inSymbol, PrintableValue& outValue);
bool lookupRegister(DebugeeThread& inThread, const char* inSymbol, PrintableValue& outValue);
// the mother of all symbol lookups
// this searches through all known ways
// of figuring out what the hell a symbol is
bool
lookupSymbol(DebugeeThread& inThread, const char* inSymbol, PrintableValue& outValue)
{
if (lookupLiteral(inSymbol, outValue))
return(true);
if (lookupRegister(inThread, inSymbol, outValue))
return (true);
void *address;
if ((address = inThread.getProcess().getAddress(inSymbol)))
{
outValue.fmtString = "%p";
outValue.value = address;
return (true);
}
return (false);
}
bool
lookupLiteral(const char* inString, PrintableValue& outValue)
{
const char* lc = inString + strlen(inString); // point to 0
Int32 value;
char* endp;
if (*inString == '\0')
return (false);
if (*inString == '#')
{
value = strtol(inString + 1, &endp, 10);
if (endp == lc)
{
outValue.value = (void*) value;
outValue.fmtString = "#%d";
return (true);
}
}
else if (*inString == '$')
{
value = strtol(inString + 1, &endp, 16);
if (endp == lc)
{
outValue.value = (void*) value;
outValue.fmtString = "0x%x";
return (true);
}
}
else
{
value = strtol(inString, &endp, 16);
if (endp == lc)
{
outValue.value = (void*) value;
outValue.fmtString = "0x%x";
return (true);
}
}
return (false);
}
bool
lookupRegister(DebugeeThread& inThread, const char* inSymbol, PrintableValue& outValue)
{
char* symbol = strdup(inSymbol);
char* cp = symbol;
assert(symbol);
// lowercase the string
while(*cp)
*cp++ = tolower(*cp);
outValue.fmtString = "%.8X";
bool found = true;
CONTEXT context;
assert(inThread.getContext(CONTEXT_INTEGER | CONTEXT_CONTROL, context));
if (!strcmp("edi", symbol))
outValue.value = (void*) context.Edi;
else if (!strcmp("esi", symbol))
outValue.value = (void*) context.Esi;
else if (!strcmp("ebx", symbol))
outValue.value = (void*) context.Ebx;
else if (!strcmp("edx", symbol))
outValue.value = (void*) context.Edx;
else if (!strcmp("ecx", symbol))
outValue.value = (void*) context.Ecx;
else if (!strcmp("eax", symbol))
outValue.value = (void*) context.Eax;
else if (!strcmp("ebp", symbol))
outValue.value = (void*) context.Ebp;
else if (!strcmp("eip", symbol))
outValue.value = (void*) context.Eip;
else if (!strcmp("esp", symbol))
outValue.value = (void*) context.Esp;
else
found = false;
free(symbol);
return (found);
}