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-rw-r--r--gnu/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp276
1 files changed, 0 insertions, 276 deletions
diff --git a/gnu/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp b/gnu/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp
deleted file mode 100644
index 2df4456053f..00000000000
--- a/gnu/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp
+++ /dev/null
@@ -1,276 +0,0 @@
-//===-- DWARFExpression.cpp -----------------------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/DebugInfo/DWARF/DWARFExpression.h"
-#include "llvm/BinaryFormat/Dwarf.h"
-#include "llvm/MC/MCRegisterInfo.h"
-#include "llvm/Support/Format.h"
-#include <cassert>
-#include <cstdint>
-#include <vector>
-
-using namespace llvm;
-using namespace dwarf;
-
-namespace llvm {
-
-typedef std::vector<DWARFExpression::Operation::Description> DescVector;
-
-static DescVector getDescriptions() {
- DescVector Descriptions;
- typedef DWARFExpression::Operation Op;
- typedef Op::Description Desc;
-
- Descriptions.resize(0xff);
- Descriptions[DW_OP_addr] = Desc(Op::Dwarf2, Op::SizeAddr);
- Descriptions[DW_OP_deref] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_const1u] = Desc(Op::Dwarf2, Op::Size1);
- Descriptions[DW_OP_const1s] = Desc(Op::Dwarf2, Op::SignedSize1);
- Descriptions[DW_OP_const2u] = Desc(Op::Dwarf2, Op::Size2);
- Descriptions[DW_OP_const2s] = Desc(Op::Dwarf2, Op::SignedSize2);
- Descriptions[DW_OP_const4u] = Desc(Op::Dwarf2, Op::Size4);
- Descriptions[DW_OP_const4s] = Desc(Op::Dwarf2, Op::SignedSize4);
- Descriptions[DW_OP_const8u] = Desc(Op::Dwarf2, Op::Size8);
- Descriptions[DW_OP_const8s] = Desc(Op::Dwarf2, Op::SignedSize8);
- Descriptions[DW_OP_constu] = Desc(Op::Dwarf2, Op::SizeLEB);
- Descriptions[DW_OP_consts] = Desc(Op::Dwarf2, Op::SignedSizeLEB);
- Descriptions[DW_OP_dup] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_drop] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_over] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_pick] = Desc(Op::Dwarf2, Op::Size1);
- Descriptions[DW_OP_swap] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_rot] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_xderef] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_abs] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_and] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_div] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_minus] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_mod] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_mul] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_neg] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_not] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_or] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_plus] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_plus_uconst] = Desc(Op::Dwarf2, Op::SizeLEB);
- Descriptions[DW_OP_shl] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_shr] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_shra] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_xor] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_skip] = Desc(Op::Dwarf2, Op::SignedSize2);
- Descriptions[DW_OP_bra] = Desc(Op::Dwarf2, Op::SignedSize2);
- Descriptions[DW_OP_eq] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_ge] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_gt] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_le] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_lt] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_ne] = Desc(Op::Dwarf2);
- for (uint16_t LA = DW_OP_lit0; LA <= DW_OP_lit31; ++LA)
- Descriptions[LA] = Desc(Op::Dwarf2);
- for (uint16_t LA = DW_OP_reg0; LA <= DW_OP_reg31; ++LA)
- Descriptions[LA] = Desc(Op::Dwarf2);
- for (uint16_t LA = DW_OP_breg0; LA <= DW_OP_breg31; ++LA)
- Descriptions[LA] = Desc(Op::Dwarf2, Op::SignedSizeLEB);
- Descriptions[DW_OP_regx] = Desc(Op::Dwarf2, Op::SizeLEB);
- Descriptions[DW_OP_fbreg] = Desc(Op::Dwarf2, Op::SignedSizeLEB);
- Descriptions[DW_OP_bregx] = Desc(Op::Dwarf2, Op::SizeLEB, Op::SignedSizeLEB);
- Descriptions[DW_OP_piece] = Desc(Op::Dwarf2, Op::SizeLEB);
- Descriptions[DW_OP_deref_size] = Desc(Op::Dwarf2, Op::Size1);
- Descriptions[DW_OP_xderef_size] = Desc(Op::Dwarf2, Op::Size1);
- Descriptions[DW_OP_nop] = Desc(Op::Dwarf2);
- Descriptions[DW_OP_push_object_address] = Desc(Op::Dwarf3);
- Descriptions[DW_OP_call2] = Desc(Op::Dwarf3, Op::Size2);
- Descriptions[DW_OP_call4] = Desc(Op::Dwarf3, Op::Size4);
- Descriptions[DW_OP_call_ref] = Desc(Op::Dwarf3, Op::SizeRefAddr);
- Descriptions[DW_OP_form_tls_address] = Desc(Op::Dwarf3);
- Descriptions[DW_OP_call_frame_cfa] = Desc(Op::Dwarf3);
- Descriptions[DW_OP_bit_piece] = Desc(Op::Dwarf3, Op::SizeLEB, Op::SizeLEB);
- Descriptions[DW_OP_implicit_value] =
- Desc(Op::Dwarf3, Op::SizeLEB, Op::SizeBlock);
- Descriptions[DW_OP_stack_value] = Desc(Op::Dwarf3);
- Descriptions[DW_OP_GNU_push_tls_address] = Desc(Op::Dwarf3);
- Descriptions[DW_OP_addrx] = Desc(Op::Dwarf4, Op::SizeLEB);
- Descriptions[DW_OP_GNU_addr_index] = Desc(Op::Dwarf4, Op::SizeLEB);
- Descriptions[DW_OP_GNU_const_index] = Desc(Op::Dwarf4, Op::SizeLEB);
- return Descriptions;
-}
-
-static DWARFExpression::Operation::Description getOpDesc(unsigned OpCode) {
- // FIXME: Make this constexpr once all compilers are smart enough to do it.
- static DescVector Descriptions = getDescriptions();
- // Handle possible corrupted or unsupported operation.
- if (OpCode >= Descriptions.size())
- return {};
- return Descriptions[OpCode];
-}
-
-static uint8_t getRefAddrSize(uint8_t AddrSize, uint16_t Version) {
- return (Version == 2) ? AddrSize : 4;
-}
-
-bool DWARFExpression::Operation::extract(DataExtractor Data, uint16_t Version,
- uint8_t AddressSize, uint32_t Offset) {
- Opcode = Data.getU8(&Offset);
-
- Desc = getOpDesc(Opcode);
- if (Desc.Version == Operation::DwarfNA) {
- EndOffset = Offset;
- return false;
- }
-
- for (unsigned Operand = 0; Operand < 2; ++Operand) {
- unsigned Size = Desc.Op[Operand];
- unsigned Signed = Size & Operation::SignBit;
-
- if (Size == Operation::SizeNA)
- break;
-
- switch (Size & ~Operation::SignBit) {
- case Operation::Size1:
- Operands[Operand] = Data.getU8(&Offset);
- if (Signed)
- Operands[Operand] = (int8_t)Operands[Operand];
- break;
- case Operation::Size2:
- Operands[Operand] = Data.getU16(&Offset);
- if (Signed)
- Operands[Operand] = (int16_t)Operands[Operand];
- break;
- case Operation::Size4:
- Operands[Operand] = Data.getU32(&Offset);
- if (Signed)
- Operands[Operand] = (int32_t)Operands[Operand];
- break;
- case Operation::Size8:
- Operands[Operand] = Data.getU64(&Offset);
- break;
- case Operation::SizeAddr:
- if (AddressSize == 8) {
- Operands[Operand] = Data.getU64(&Offset);
- } else {
- assert(AddressSize == 4);
- Operands[Operand] = Data.getU32(&Offset);
- }
- break;
- case Operation::SizeRefAddr:
- if (getRefAddrSize(AddressSize, Version) == 8) {
- Operands[Operand] = Data.getU64(&Offset);
- } else {
- assert(getRefAddrSize(AddressSize, Version) == 4);
- Operands[Operand] = Data.getU32(&Offset);
- }
- break;
- case Operation::SizeLEB:
- if (Signed)
- Operands[Operand] = Data.getSLEB128(&Offset);
- else
- Operands[Operand] = Data.getULEB128(&Offset);
- break;
- case Operation::SizeBlock:
- // We need a size, so this cannot be the first operand
- if (Operand == 0)
- return false;
- // Store the offset of the block as the value.
- Operands[Operand] = Offset;
- Offset += Operands[Operand - 1];
- break;
- default:
- llvm_unreachable("Unknown DWARFExpression Op size");
- }
- }
-
- EndOffset = Offset;
- return true;
-}
-
-static bool prettyPrintRegisterOp(raw_ostream &OS, uint8_t Opcode,
- uint64_t Operands[2],
- const MCRegisterInfo *MRI, bool isEH) {
- if (!MRI)
- return false;
-
- uint64_t DwarfRegNum;
- unsigned OpNum = 0;
-
- if (Opcode == DW_OP_bregx || Opcode == DW_OP_regx)
- DwarfRegNum = Operands[OpNum++];
- else if (Opcode >= DW_OP_breg0 && Opcode < DW_OP_bregx)
- DwarfRegNum = Opcode - DW_OP_breg0;
- else
- DwarfRegNum = Opcode - DW_OP_reg0;
-
- int LLVMRegNum = MRI->getLLVMRegNum(DwarfRegNum, isEH);
- if (LLVMRegNum >= 0) {
- if (const char *RegName = MRI->getName(LLVMRegNum)) {
- if ((Opcode >= DW_OP_breg0 && Opcode <= DW_OP_breg31) ||
- Opcode == DW_OP_bregx)
- OS << format(" %s%+" PRId64, RegName, Operands[OpNum]);
- else
- OS << ' ' << RegName;
- return true;
- }
- }
-
- return false;
-}
-
-bool DWARFExpression::Operation::print(raw_ostream &OS,
- const DWARFExpression *Expr,
- const MCRegisterInfo *RegInfo,
- bool isEH) {
- if (Error) {
- OS << "<decoding error>";
- return false;
- }
-
- StringRef Name = OperationEncodingString(Opcode);
- assert(!Name.empty() && "DW_OP has no name!");
- OS << Name;
-
- if ((Opcode >= DW_OP_breg0 && Opcode <= DW_OP_breg31) ||
- (Opcode >= DW_OP_reg0 && Opcode <= DW_OP_reg31) ||
- Opcode == DW_OP_bregx || Opcode == DW_OP_regx)
- if (prettyPrintRegisterOp(OS, Opcode, Operands, RegInfo, isEH))
- return true;
-
- for (unsigned Operand = 0; Operand < 2; ++Operand) {
- unsigned Size = Desc.Op[Operand];
- unsigned Signed = Size & Operation::SignBit;
-
- if (Size == Operation::SizeNA)
- break;
-
- if (Size == Operation::SizeBlock) {
- uint32_t Offset = Operands[Operand];
- for (unsigned i = 0; i < Operands[Operand - 1]; ++i)
- OS << format(" 0x%02x", Expr->Data.getU8(&Offset));
- } else {
- if (Signed)
- OS << format(" %+" PRId64, (int64_t)Operands[Operand]);
- else
- OS << format(" 0x%" PRIx64, Operands[Operand]);
- }
- }
- return true;
-}
-
-void DWARFExpression::print(raw_ostream &OS, const MCRegisterInfo *RegInfo,
- bool IsEH) const {
- for (auto &Op : *this) {
- if (!Op.print(OS, this, RegInfo, IsEH)) {
- uint32_t FailOffset = Op.getEndOffset();
- while (FailOffset < Data.getData().size())
- OS << format(" %02x", Data.getU8(&FailOffset));
- return;
- }
- if (Op.getEndOffset() < Data.getData().size())
- OS << ", ";
- }
-}
-
-} // namespace llvm
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