C++ (Cpp) DataExtractor::GetAddressByteSize Examples

Example #1

File: ELFHeader.cpp Project: Jean-Daniel/lldb

bool
ELFSectionHeader::Parse(const lldb_private::DataExtractor &data,
                        lldb::offset_t *offset)
{
    const unsigned byte_size = data.GetAddressByteSize();

    // Read sh_name and sh_type.
    if (data.GetU32(offset, &sh_name, 2) == NULL)
        return false;

    // Read sh_flags.
    if (GetMaxU64(data, offset, &sh_flags, byte_size) == false)
        return false;

    // Read sh_addr, sh_off and sh_size.
    if (GetMaxU64(data, offset, &sh_addr, byte_size, 3) == false)
        return false;

    // Read sh_link and sh_info.
    if (data.GetU32(offset, &sh_link, 2) == NULL)
        return false;

    // Read sh_addralign and sh_entsize.
    if (GetMaxU64(data, offset, &sh_addralign, byte_size, 2) == false)
        return false;

    return true;
}

Example #2

File: ELFHeader.cpp Project: Jean-Daniel/lldb

bool
ELFRel::Parse(const lldb_private::DataExtractor &data, lldb::offset_t *offset)
{
    const unsigned byte_size = data.GetAddressByteSize();

    // Read r_offset and r_info.
    if (GetMaxU64(data, offset, &r_offset, byte_size, 2) == false)
        return false;

    return true;
}

Example #3

File: ELFHeader.cpp Project: Jean-Daniel/lldb

bool
ELFSymbol::Parse(const lldb_private::DataExtractor &data, lldb::offset_t *offset)
{
    const unsigned byte_size = data.GetAddressByteSize();
    const bool parsing_32 = byte_size == 4;

    // Read st_name.
    if (data.GetU32(offset, &st_name, 1) == NULL)
        return false;

    if (parsing_32) 
    {
        // Read st_value and st_size.
        if (GetMaxU64(data, offset, &st_value, byte_size, 2) == false)
            return false;

        // Read st_info and st_other.
        if (data.GetU8(offset, &st_info, 2) == NULL)
            return false;
            
        // Read st_shndx.
        if (data.GetU16(offset, &st_shndx, 1) == NULL)
            return false;
    }
    else 
    {
        // Read st_info and st_other.
        if (data.GetU8(offset, &st_info, 2) == NULL)
            return false;
            
        // Read st_shndx.
        if (data.GetU16(offset, &st_shndx, 1) == NULL)
            return false;

        // Read st_value and st_size.
        if (data.GetU64(offset, &st_value, 2) == NULL)
            return false;
    }
    return true;
}

Example #4

File: ELFHeader.cpp Project: Jean-Daniel/lldb

bool
ELFProgramHeader::Parse(const lldb_private::DataExtractor &data, 
                        lldb::offset_t *offset)
{
    const uint32_t byte_size = data.GetAddressByteSize();
    const bool parsing_32 = byte_size == 4;

    // Read p_type;
    if (data.GetU32(offset, &p_type, 1) == NULL)
        return false;

    if (parsing_32) {
        // Read p_offset, p_vaddr, p_paddr, p_filesz and p_memsz.
        if (GetMaxU64(data, offset, &p_offset, byte_size, 5) == false)
            return false;

        // Read p_flags.
        if (data.GetU32(offset, &p_flags, 1) == NULL)
            return false;

        // Read p_align.
        if (GetMaxU64(data, offset, &p_align, byte_size) == false)
            return false;
    }
    else {
        // Read p_flags.
        if (data.GetU32(offset, &p_flags, 1) == NULL)
            return false;

        // Read p_offset, p_vaddr, p_paddr, p_filesz, p_memsz and p_align.
        if (GetMaxU64(data, offset, &p_offset, byte_size, 6) == false)
            return false;
    }

    return true;
}

Example #5

File: ELFHeader.cpp Project: Jean-Daniel/lldb

bool
ELFDynamic::Parse(const lldb_private::DataExtractor &data, lldb::offset_t *offset)
{
    const unsigned byte_size = data.GetAddressByteSize();
    return GetMaxS64(data, offset, &d_tag, byte_size, 2);
}