public override void Relocate(Program program)
{
DumpRel32(loader);
DumpRela32(loader);
foreach (var relSection in loader.Sections)
{
if (relSection.Type == SectionHeaderType.SHT_REL)
{
var sectionSymbols = loader.Symbols[relSection.LinkedSection];
var referringSection = relSection.RelocatedSection;
var rdr = loader.CreateReader(relSection.FileOffset);
for (uint i = 0; i < relSection.EntryCount(); ++i)
{
var rel = Elf32_Rel.Read(rdr);
var sym = sectionSymbols[(int)(rel.r_info >> 8)];
RelocateEntry(program, sym, referringSection, rel);
}
}
else if (relSection.Type == SectionHeaderType.SHT_RELA)
{
var sectionSymbols = loader.Symbols[relSection.LinkedSection];
var referringSection = relSection.RelocatedSection;
var rdr = loader.CreateReader(relSection.FileOffset);
for (uint i = 0; i < relSection.EntryCount(); ++i)
{
var rela = Elf32_Rela.Read(rdr);
var sym = sectionSymbols[(int)(rela.r_info >> 8)];
RelocateEntry(program, sym, referringSection, rela);
}
}
}
}
protected void DumpRel32(ElfLoader32 loader)
{
foreach (var section in loader.Sections.Where(s => s.Type == SectionHeaderType.SHT_REL))
{
Debug.Print("REL: offset {0:X} symbol section {1}, relocating in section {2}",
section.FileOffset,
section.LinkedSection.Name,
section.RelocatedSection.Name);
var symbols = loader.Symbols[section.LinkedSection.FileOffset];
var rdr = loader.CreateReader(section.FileOffset);
for (uint i = 0; i < section.EntryCount(); ++i)
{
var rel = Elf32_Rel.Read(rdr);
Debug.Print(" off:{0:X8} type:{1,-16} {3,3} {2}",
rel.r_offset,
RelocationTypeToString(rel.r_info & 0xFF),
symbols[(int)(rel.r_info >> 8)].Name,
(int)(rel.r_info >> 8));
}
}
}
protected void DumpRel32(ElfLoader32 loader)
{
foreach (var section in loader.Sections.Where(s => s.Type == SectionHeaderType.SHT_REL))
{
ElfImageLoader.trace.Inform("REL: offset {0:X} symbol section {1}, relocating in section {2}",
section.FileOffset,
section.LinkedSection.Name,
section.RelocatedSection.Name);
loader.Symbols.TryGetValue(section.LinkedSection.FileOffset, out var symbols);
var rdr = loader.CreateReader(section.FileOffset);
for (uint i = 0; i < section.EntryCount(); ++i)
{
var rel = Elf32_Rel.Read(rdr);
ElfImageLoader.trace.Verbose(
" off:{0:X8} type:{1,-16} {3,3} {2}",
rel.r_offset,
RelocationTypeToString(rel.r_info & 0xFF),
symbols != null ? symbols[(int)(rel.r_info >> 8)].Name : "<nosym>",
(int)(rel.r_info >> 8));
}
}
}