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;
}