public Section(Elf32_Shdr header, byte[] data, LinkingView owner)
{
if (header != null)
{
this.header = header;
}
else
{
throw new ArgumentNullException("header");
}
if (data != null)
{
this.data = data;
}
else
{
throw new ArgumentNullException("data");
}
if (owner != null)
{
this.owner = owner;
}
else
{
throw new ArgumentNullException("owner");
}
}
public StrTabSection(Elf32_Shdr hdr, byte[] data, LinkingView owner)
: base(hdr, data, owner)
{
int stringStart = 0;
for (int i = 0; i < Header.sh_size; i++)
{
if (Data[i] == 0)
{
offsets.Add(stringStart);
stringStart = i + 1;
}
}
}
protected byte[] CollectSectionsData(ref int shoff, uint offset, int sectionIndex)
{
if (sectionIndex < Sections.Count)
{
Section section = Sections[sectionIndex];
Elf32_Shdr header = section.Header;
header.sh_offset = (header.sh_addralign > 1) ? (uint)Util.WideToFold(offset, header.sh_addralign) : offset;
byte[] binaryData = CollectSectionsData(ref shoff, header.sh_offset + header.sh_size, sectionIndex + 1);
Array.Copy(section.Data, 0, binaryData, header.sh_offset, header.sh_size);
Marshal.StructureToPtr(header, Marshal.UnsafeAddrOfPinnedArrayElement(binaryData, (int)(shoff + sectionIndex * Header.e_shentsize)), false);
return(binaryData);
}
else
{
shoff = (int)Util.WideToFold(offset, 4);
return(new byte[shoff + Sections.Count * Header.e_shentsize]);
}
}
public LinkingView(byte[] binaryData) : this()
{
Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(binaryData, 0), header);
for (int section = 0; section < Header.e_shnum; section++)
{
Elf32_Shdr sectionHeader = (Elf32_Shdr)Marshal.PtrToStructure(Marshal.UnsafeAddrOfPinnedArrayElement(binaryData,
(int)(Header.e_shoff + section * Header.e_shentsize)), typeof(Elf32_Shdr));
byte[] sectionData = new byte[sectionHeader.sh_size];
Array.Copy(binaryData, sectionHeader.sh_offset, sectionData, 0, sectionHeader.sh_size);
switch (sectionHeader.sh_type)
{
case (uint)SectionTypes.SHT_STRTAB: Sections.Add(new StrTabSection(sectionHeader, sectionData, this)); break;
case (uint)SectionTypes.SHT_SYMTAB: Sections.Add(new SymTabSection(sectionHeader, sectionData, this)); break;
default: Sections.Add(new Section(sectionHeader, sectionData, this)); break;
}
}
}
public SymTabSection(Elf32_Shdr hdr, byte[] data, LinkingView owner)
: base(hdr, data, owner)
{
}