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#include <cstdint>
#include <ore/BinaryFile.h>
#include <ore/BitUtils.h>
namespace ore {
bool BinaryFileHeader::IsValid(s64 magic_, int ver_major_, int ver_minor_, int ver_patch_,
int ver_sub_) const {
bool valid = true;
valid &= int(ver_major) == ver_major_ && int(ver_minor) == ver_minor_ &&
magic == magic_ & int(ver_patch) <= ver_patch_;
valid &= IsEndianReverse() || IsEndianValid();
valid &= IsAlignmentValid();
return valid;
}
bool BinaryFileHeader::IsSignatureValid(s64 magic_) const {
return magic == magic_;
}
bool BinaryFileHeader::IsVersionValid(int major, int minor, int patch, int sub) const {
if (int(ver_major) != major)
return false;
if (int(ver_minor) != minor)
return false;
if (int(ver_patch) > patch)
return false;
return true;
}
bool BinaryFileHeader::IsEndianReverse() const {
return bom == s16(0xFFFE);
}
bool BinaryFileHeader::IsEndianValid() const {
return bom == s16(0xFEFF);
}
bool BinaryFileHeader::IsAlignmentValid() const {
return (std::uintptr_t(this) & (GetAlignment() - 1)) == 0;
}
int BinaryFileHeader::GetAlignment() const {
return 1 << alignment;
}
static constexpr u32 FlagRelocated = 1 << 0;
bool BinaryFileHeader::IsRelocated() const {
return relocation_flags & FlagRelocated;
}
void BinaryFileHeader::SetRelocated(bool relocated) {
if (relocated)
relocation_flags |= FlagRelocated;
else
relocation_flags &= ~FlagRelocated;
}
void BinaryFileHeader::SetByteOrderMark() {
bom = s16(0xFEFF);
}
int BinaryFileHeader::GetFileSize() const {
return file_size;
}
void BinaryFileHeader::SetFileSize(int size) {
file_size = size;
}
void BinaryFileHeader::SetAlignment(int alignment_) {
alignment = CountTrailingZeros(u32(alignment_));
}
StringView BinaryFileHeader::GetFileName() const {
StringView name;
if (file_name_offset != 0)
name = reinterpret_cast<const char*>(this) + file_name_offset;
return name;
}
void BinaryFileHeader::SetFileName(const StringView& name) {
if (name.empty()) {
file_name_offset = 0;
} else {
file_name_offset = int(intptr_t(name.data()) - intptr_t(this));
#ifdef MATCHING_HACK_NX_CLANG
asm("");
#endif
}
}
RelocationTable* BinaryFileHeader::GetRelocationTable() {
if (relocation_table_offset == 0)
return nullptr;
return reinterpret_cast<RelocationTable*>(reinterpret_cast<char*>(this) +
relocation_table_offset);
}
void BinaryFileHeader::SetRelocationTable(RelocationTable* table) {
if (table == nullptr) {
relocation_table_offset = 0;
} else {
relocation_table_offset = int(intptr_t(table) - intptr_t(this));
#ifdef MATCHING_HACK_NX_CLANG
asm("");
#endif
}
}
BinaryBlockHeader* BinaryFileHeader::GetFirstBlock() {
if (first_block_offset == 0)
return nullptr;
return reinterpret_cast<BinaryBlockHeader*>(reinterpret_cast<char*>(this) + first_block_offset);
}
const BinaryBlockHeader* BinaryFileHeader::GetFirstBlock() const {
if (first_block_offset == 0)
return nullptr;
return reinterpret_cast<const BinaryBlockHeader*>(reinterpret_cast<const char*>(this) +
first_block_offset);
}
BinaryBlockHeader* BinaryFileHeader::FindFirstBlock(int type) {
auto* block = GetFirstBlock();
if (!block || block->magic == type)
return block;
return block->FindNextBlock(type);
}
const BinaryBlockHeader* BinaryFileHeader::FindFirstBlock(int type) const {
auto* block = GetFirstBlock();
if (!block || block->magic == type)
return block;
return block->FindNextBlock(type);
}
void BinaryFileHeader::SetFirstBlock(BinaryBlockHeader* block) {
if (block == nullptr)
first_block_offset = 0;
else
first_block_offset = int(intptr_t(block) - intptr_t(this));
}
BinaryBlockHeader* BinaryBlockHeader::FindNextBlock(int type) {
auto* block = this;
do
block = block->GetNextBlock();
while (block && block->magic != type);
return block;
}
const BinaryBlockHeader* BinaryBlockHeader::FindNextBlock(int type) const {
auto* block = this;
do
block = block->GetNextBlock();
while (block && block->magic != type);
return block;
}
BinaryBlockHeader* BinaryBlockHeader::GetNextBlock() {
if (next_block_offset == 0)
return nullptr;
return reinterpret_cast<BinaryBlockHeader*>(reinterpret_cast<char*>(this) + next_block_offset);
}
const BinaryBlockHeader* BinaryBlockHeader::GetNextBlock() const {
if (next_block_offset == 0)
return nullptr;
return reinterpret_cast<const BinaryBlockHeader*>(reinterpret_cast<const char*>(this) +
next_block_offset);
}
void BinaryBlockHeader::SetNextBlock(BinaryBlockHeader* block) {
if (block == nullptr)
next_block_offset = 0;
else
next_block_offset = int(intptr_t(block) - intptr_t(this));
}
} // namespace ore
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