/// <summary>
/// Initializes a new instance of the <see cref="Section"/> class.
/// </summary>
/// <param name="kind">The kind of the section.</param>
/// <param name="name">The name.</param>
/// <param name="virtualAddress">The virtualAddress.</param>
public Section(SectionKind kind, string name, IntPtr virtualAddress)
: base(kind, name, virtualAddress)
{
header = new SectionHeader();
header.Name = StringTableSection.AddString(name);
stream = new MemoryStream();
}
private static void WriteNullHeaderSection(EndianAwareBinaryWriter writer)
{
var nullsection = new SectionHeader();
nullsection.Name = 0;
nullsection.Type = SectionType.Null;
nullsection.Flags = 0;
nullsection.Address = 0;
nullsection.Offset = 0;
nullsection.Size = 0;
nullsection.Link = 0;
nullsection.Info = 0;
nullsection.AddressAlignment = 0;
nullsection.EntrySize = 0;
nullsection.Write(writer);
}
private void WriteSectionHeaders(EndianAwareBinaryWriter writer)
{
writer.Position = elfheader.SectionHeaderOffset;
WriteNullHeaderSection(writer);
foreach (var section in Sections)
{
if (section.Size == 0 && section.SectionKind != SectionKind.BSS)
{
continue;
}
var sheader = new SectionHeader();
sheader.Name = AddToStringTable(section.Name);
switch (section.SectionKind)
{
case SectionKind.Text: sheader.Type = SectionType.ProgBits; sheader.Flags = SectionAttribute.AllocExecute; break;
case SectionKind.Data: sheader.Type = SectionType.ProgBits; sheader.Flags = SectionAttribute.Alloc | SectionAttribute.Write; break;
case SectionKind.ROData: sheader.Type = SectionType.ProgBits; sheader.Flags = SectionAttribute.Alloc; break;
case SectionKind.BSS: sheader.Type = SectionType.NoBits; sheader.Flags = SectionAttribute.Alloc | SectionAttribute.Write; break;
}
sheader.Address = (uint)section.VirtualAddress;
sheader.Offset = section.FileOffset;
sheader.Size = section.AlignedSize;
sheader.Link = 0;
sheader.Info = 0;
sheader.AddressAlignment = 0;
sheader.EntrySize = 0;
sheader.Write(writer);
}
WriteStringHeaderSection(writer);
}
private static void WriteNullHeaderSection(EndianAwareBinaryWriter writer)
{
var nullsection = new SectionHeader();
nullsection.Name = 0;
nullsection.Type = SectionType.Null;
nullsection.Flags = 0;
nullsection.Address = 0;
nullsection.Offset = 0;
nullsection.Size = 0;
nullsection.Link = 0;
nullsection.Info = 0;
nullsection.AddressAlignment = 0;
nullsection.EntrySize = 0;
nullsection.Write(writer);
}
private void WriteSectionHeaders(EndianAwareBinaryWriter writer)
{
writer.Position = elfheader.SectionHeaderOffset;
WriteNullHeaderSection(writer);
foreach (var section in Sections)
{
if (section.Size == 0 && section.SectionKind != SectionKind.BSS)
continue;
var sheader = new SectionHeader();
sheader.Name = AddToStringTable(section.Name);
switch (section.SectionKind)
{
case SectionKind.Text: sheader.Type = SectionType.ProgBits; sheader.Flags = SectionAttribute.AllocExecute; break;
case SectionKind.Data: sheader.Type = SectionType.ProgBits; sheader.Flags = SectionAttribute.Alloc | SectionAttribute.Write; break;
case SectionKind.ROData: sheader.Type = SectionType.ProgBits; sheader.Flags = SectionAttribute.Alloc; break;
case SectionKind.BSS: sheader.Type = SectionType.NoBits; sheader.Flags = SectionAttribute.Alloc | SectionAttribute.Write; break;
}
sheader.Address = (uint)section.VirtualAddress;
sheader.Offset = section.FileOffset;
sheader.Size = section.AlignedSize;
sheader.Link = 0;
sheader.Info = 0;
sheader.AddressAlignment = section.SectionAlignment;
sheader.EntrySize = 0;
sheader.Write(writer);
}
WriteStringHeaderSection(writer);
}
