LookupCommand.cc

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#include "pedigree/kernel/debugger/commands/LookupCommand.h"
#include "pedigree/kernel/linker/KernelElf.h"
#include "pedigree/kernel/processor/types.h"
 
class DebuggerIO;
 
LookupCommand::LookupCommand() : DebuggerCommand() {}
 
LookupCommand::~LookupCommand() {}
 
void LookupCommand::autocomplete(const HugeStaticString& input, HugeStaticString& output) {}
 
bool LookupCommand::execute(const HugeStaticString& input, HugeStaticString& output,
                            InterruptState& state, DebuggerIO* pScreen) {
  intptr_t n = input.intValue();
  if (n == -1) {
    uintptr_t addr = KernelElf::instance().lookupSymbol(static_cast<const char*>(input));
    if (addr)
      output.append(addr, 16);
    else
      output += "No symbol corresponding to given name";
    output += "\n";
  } else {
    uintptr_t symStart;
    const char* pSym =
        KernelElf::instance().globalLookupSymbol(static_cast<uintptr_t>(n), &symStart);
    if (!pSym) {
      output += "No symbol corresponding to given address.";
      return false;
    }
    output += "`";
    output += pSym;
    output += "' - symbol starts at ";
    output.append(symStart, 16);
    output += "\n";
  }
  return true;
}