void ElfSegment::writeData(ByteArray& output)
{
if (sections.size() == 0)
{
output.alignSize(header.p_align);
if (header.p_offset == header.p_paddr)
header.p_paddr = output.size();
header.p_offset = output.size();
return;
}
// align segment to alignment of first section
int align = std::max<int>(sections[0]->getAlignment(),16);
output.alignSize(align);
header.p_offset = output.size();
for (int i = 0; i < (int)sections.size(); i++)
{
sections[i]->setOffsetBase(header.p_offset);
}
if (paddrSection)
{
header.p_paddr = paddrSection->getOffset();
}
output.append(data);
}
// only called for segmentless sections
void ElfSection::writeData(ByteArray& output)
{
if (header.sh_type == SHT_NULL) return;
// nobits sections still get a provisional file address
if (header.sh_type == SHT_NOBITS)
{
header.sh_offset = output.size();
}
if (header.sh_addralign != -1)
output.alignSize(header.sh_addralign);
header.sh_offset = output.size();
output.append(data);
}