/// emitSectionData
void
ELFObjectWriter::emitSectionData(const LDSection& pSection,
MemoryRegion& pRegion) const
{
const SectionData* sd = NULL;
switch (pSection.kind()) {
case LDFileFormat::Relocation:
assert(pSection.hasRelocData());
return;
case LDFileFormat::EhFrame:
assert(pSection.hasEhFrame());
sd = pSection.getEhFrame()->getSectionData();
break;
default:
assert(pSection.hasSectionData());
sd = pSection.getSectionData();
break;
}
emitSectionData(*sd, pRegion);
}
/// group - group fragments and create islands when needed
/// @param pSectionData - the SectionData holds fragments need to be grouped
void BranchIslandFactory::group(Module& pModule) {
/* FIXME: Currently only support relaxing .text section! */
LDSection* text = pModule.getSection(".text");
if (text != NULL && text->hasSectionData()) {
SectionData& sd = *text->getSectionData();
uint64_t group_end = m_MaxFwdBranchRange;
for (SectionData::iterator it = sd.begin(), ie = sd.end(); it != ie; ++it) {
if ((*it).getOffset() + (*it).size() > group_end) {
Fragment* frag = (*it).getPrevNode();
while (frag != NULL && frag->getKind() == Fragment::Alignment) {
frag = frag->getPrevNode();
}
if (frag != NULL) {
produce(*frag);
group_end = (*it).getOffset() + m_MaxFwdBranchRange;
}
}
}
if (getIslands(sd.back()).first == NULL)
produce(sd.back());
}
}
