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-rw-r--r--lib/Object/COFFObjectFile.cpp128
1 files changed, 14 insertions, 114 deletions
diff --git a/lib/Object/COFFObjectFile.cpp b/lib/Object/COFFObjectFile.cpp
index 86bf44baae..60fc880d7c 100644
--- a/lib/Object/COFFObjectFile.cpp
+++ b/lib/Object/COFFObjectFile.cpp
@@ -11,11 +11,9 @@
//
//===----------------------------------------------------------------------===//
+#include "llvm/Object/COFF.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Triple.h"
-#include "llvm/Object/ObjectFile.h"
-#include "llvm/Support/COFF.h"
-#include "llvm/Support/Endian.h"
using namespace llvm;
using namespace object;
@@ -27,107 +25,6 @@ using support::ulittle32_t;
using support::little16_t;
}
-namespace {
-struct coff_file_header {
- ulittle16_t Machine;
- ulittle16_t NumberOfSections;
- ulittle32_t TimeDateStamp;
- ulittle32_t PointerToSymbolTable;
- ulittle32_t NumberOfSymbols;
- ulittle16_t SizeOfOptionalHeader;
- ulittle16_t Characteristics;
-};
-}
-
-extern char coff_file_header_layout_static_assert
- [sizeof(coff_file_header) == 20 ? 1 : -1];
-
-namespace {
-struct coff_symbol {
- struct StringTableOffset {
- ulittle32_t Zeroes;
- ulittle32_t Offset;
- };
-
- union {
- char ShortName[8];
- StringTableOffset Offset;
- } Name;
-
- ulittle32_t Value;
- little16_t SectionNumber;
-
- struct {
- ulittle8_t BaseType;
- ulittle8_t ComplexType;
- } Type;
-
- ulittle8_t StorageClass;
- ulittle8_t NumberOfAuxSymbols;
-};
-}
-
-extern char coff_coff_symbol_layout_static_assert
- [sizeof(coff_symbol) == 18 ? 1 : -1];
-
-namespace {
-struct coff_section {
- char Name[8];
- ulittle32_t VirtualSize;
- ulittle32_t VirtualAddress;
- ulittle32_t SizeOfRawData;
- ulittle32_t PointerToRawData;
- ulittle32_t PointerToRelocations;
- ulittle32_t PointerToLinenumbers;
- ulittle16_t NumberOfRelocations;
- ulittle16_t NumberOfLinenumbers;
- ulittle32_t Characteristics;
-};
-}
-
-extern char coff_coff_section_layout_static_assert
- [sizeof(coff_section) == 40 ? 1 : -1];
-
-namespace {
-class COFFObjectFile : public ObjectFile {
-private:
- uint64_t HeaderOff;
- const coff_file_header *Header;
- const coff_section *SectionTable;
- const coff_symbol *SymbolTable;
- const char *StringTable;
-
- const coff_section *getSection(std::size_t index) const;
- const char *getString(std::size_t offset) const;
-
-protected:
- virtual SymbolRef getSymbolNext(DataRefImpl Symb) const;
- virtual StringRef getSymbolName(DataRefImpl Symb) const;
- virtual uint64_t getSymbolAddress(DataRefImpl Symb) const;
- virtual uint64_t getSymbolSize(DataRefImpl Symb) const;
- virtual char getSymbolNMTypeChar(DataRefImpl Symb) const;
- virtual bool isSymbolInternal(DataRefImpl Symb) const;
-
- virtual SectionRef getSectionNext(DataRefImpl Sec) const;
- virtual StringRef getSectionName(DataRefImpl Sec) const;
- virtual uint64_t getSectionAddress(DataRefImpl Sec) const;
- virtual uint64_t getSectionSize(DataRefImpl Sec) const;
- virtual StringRef getSectionContents(DataRefImpl Sec) const;
- virtual bool isSectionText(DataRefImpl Sec) const;
-
-public:
- COFFObjectFile(MemoryBuffer *Object);
- virtual symbol_iterator begin_symbols() const;
- virtual symbol_iterator end_symbols() const;
- virtual section_iterator begin_sections() const;
- virtual section_iterator end_sections() const;
-
- virtual uint8_t getBytesInAddress() const;
- virtual StringRef getFileFormatName() const;
- virtual unsigned getArch() const;
-};
-} // end namespace
-
SymbolRef COFFObjectFile::getSymbolNext(DataRefImpl Symb) const {
const coff_symbol *symb = reinterpret_cast<const coff_symbol*>(Symb.p);
symb += 1 + symb->NumberOfAuxSymbols;
@@ -274,7 +171,8 @@ uint64_t COFFObjectFile::getSectionSize(DataRefImpl Sec) const {
StringRef COFFObjectFile::getSectionContents(DataRefImpl Sec) const {
const coff_section *sec = reinterpret_cast<const coff_section*>(Sec.p);
- return StringRef(reinterpret_cast<const char *>(base + sec->PointerToRawData),
+ return StringRef(reinterpret_cast<const char *>(base()
+ + sec->PointerToRawData),
sec->SizeOfRawData);
}
@@ -283,29 +181,30 @@ bool COFFObjectFile::isSectionText(DataRefImpl Sec) const {
return sec->Characteristics & COFF::IMAGE_SCN_CNT_CODE;
}
-COFFObjectFile::COFFObjectFile(MemoryBuffer *Object)
- : ObjectFile(Object) {
+COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &ec)
+ : ObjectFile(Binary::isCOFF, Object, ec) {
HeaderOff = 0;
- if (base[0] == 0x4d && base[1] == 0x5a) {
+ if (base()[0] == 0x4d && base()[1] == 0x5a) {
// PE/COFF, seek through MS-DOS compatibility stub and 4-byte
// PE signature to find 'normal' COFF header.
- HeaderOff += *reinterpret_cast<const ulittle32_t *>(base + 0x3c);
+ HeaderOff += *reinterpret_cast<const ulittle32_t *>(base() + 0x3c);
HeaderOff += 4;
}
- Header = reinterpret_cast<const coff_file_header *>(base + HeaderOff);
+ Header = reinterpret_cast<const coff_file_header *>(base() + HeaderOff);
SectionTable =
- reinterpret_cast<const coff_section *>( base
+ reinterpret_cast<const coff_section *>( base()
+ HeaderOff
+ sizeof(coff_file_header)
+ Header->SizeOfOptionalHeader);
SymbolTable =
- reinterpret_cast<const coff_symbol *>(base + Header->PointerToSymbolTable);
+ reinterpret_cast<const coff_symbol *>(base()
+ + Header->PointerToSymbolTable);
// Find string table.
- StringTable = reinterpret_cast<const char *>(base)
+ StringTable = reinterpret_cast<const char *>(base())
+ Header->PointerToSymbolTable
+ Header->NumberOfSymbols * 18;
}
@@ -382,7 +281,8 @@ const char *COFFObjectFile::getString(std::size_t offset) const {
namespace llvm {
ObjectFile *ObjectFile::createCOFFObjectFile(MemoryBuffer *Object) {
- return new COFFObjectFile(Object);
+ error_code ec;
+ return new COFFObjectFile(Object, ec);
}
} // end namespace llvm
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-28 07:00:21 +0000