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df46cef31b
ELF with support for:
- File headers
- Section headers + data
- Relocations
- Symbols
- Unwind data (only COFF/Win64)
The output format follows a few rules:
- Values are almost always output one per line (as elf-dump/coff-dump already do). - Many values are translated to something readable (like enum names), with the raw value in parentheses.
- Hex numbers are output in uppercase, prefixed with "0x".
- Flags are sorted alphabetically.
- Lists and groups are always delimited.
Example output:
---------- snip ----------
Sections [
Section {
Index: 1
Name: .text (5)
Type: SHT_PROGBITS (0x1)
Flags [ (0x6)
SHF_ALLOC (0x2)
SHF_EXECINSTR (0x4)
]
Address: 0x0
Offset: 0x40
Size: 33
Link: 0
Info: 0
AddressAlignment: 16
EntrySize: 0
Relocations [
0x6 R_386_32 .rodata.str1.1 0x0
0xB R_386_PC32 puts 0x0
0x12 R_386_32 .rodata.str1.1 0x0
0x17 R_386_PC32 puts 0x0
]
SectionData (
0000: 83EC04C7 04240000 0000E8FC FFFFFFC7 |.....$..........|
0010: 04240600 0000E8FC FFFFFF31 C083C404 |.$.........1....|
0020: C3 |.|
)
}
]
---------- snip ----------
Relocations and symbols can be output standalone or together with the section header as displayed in the example.
This feature set supports all tests in test/MC/COFF and test/MC/ELF (and I suspect all additional tests using elf-dump), making elf-dump and coff-dump deprecated.
Patch by Nico Rieck!
llvm-svn: 178679
80 lines
1.9 KiB
C++
80 lines
1.9 KiB
C++
#include "StreamWriter.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/Format.h"
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#include <cctype>
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using namespace llvm::support;
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namespace llvm {
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raw_ostream &operator<<(raw_ostream &OS, const HexNumber& Value) {
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uint64_t N = Value.Value;
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// Zero is a special case.
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if (N == 0)
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return OS << "0x0";
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char NumberBuffer[20];
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char *EndPtr = NumberBuffer + sizeof(NumberBuffer);
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char *CurPtr = EndPtr;
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while (N) {
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uintptr_t X = N % 16;
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*--CurPtr = (X < 10 ? '0' + X : 'A' + X - 10);
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N /= 16;
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}
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OS << "0x";
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return OS.write(CurPtr, EndPtr - CurPtr);
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}
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void StreamWriter::printBinaryImpl(StringRef Label, StringRef Str,
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ArrayRef<uint8_t> Data, bool Block) {
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if (Data.size() > 16)
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Block = true;
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if (Block) {
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startLine() << Label;
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if (Str.size() > 0)
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OS << ": " << Str;
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OS << " (\n";
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for (size_t addr = 0, end = Data.size(); addr < end; addr += 16) {
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startLine() << format(" %04" PRIX64 ": ", uint64_t(addr));
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// Dump line of hex.
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for (size_t i = 0; i < 16; ++i) {
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if (i != 0 && i % 4 == 0)
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OS << ' ';
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if (addr + i < end)
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OS << hexdigit((Data[addr + i] >> 4) & 0xF, false)
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<< hexdigit(Data[addr + i] & 0xF, false);
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else
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OS << " ";
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}
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// Print ascii.
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OS << " |";
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for (std::size_t i = 0; i < 16 && addr + i < end; ++i) {
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if (std::isprint(Data[addr + i] & 0xFF))
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OS << Data[addr + i];
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else
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OS << ".";
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}
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OS << "|\n";
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}
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startLine() << ")\n";
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} else {
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startLine() << Label << ":";
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if (Str.size() > 0)
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OS << " " << Str;
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OS << " (";
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for (size_t i = 0; i < Data.size(); ++i) {
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if (i > 0)
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OS << " ";
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OS << format("%02X", static_cast<int>(Data[i]));
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}
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OS << ")\n";
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}
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}
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} // namespace llvm
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