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1 //===-------- StackMapPrinter.h - Pretty-print stackmaps --------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef LLVM_TOOLS_LLVM_READOBJ_STACKMAPPRINTER_H
11 #define LLVM_TOOLS_LLVM_READOBJ_STACKMAPPRINTER_H
12 
13 #include "llvm/Object/StackMapParser.h"
14 
15 namespace llvm {
16 
17 // Pretty print a stackmap to the given ostream.
18 template <typename OStreamT, typename StackMapParserT>
prettyPrintStackMap(OStreamT & OS,const StackMapParserT & SMP)19 void prettyPrintStackMap(OStreamT &OS, const StackMapParserT &SMP) {
20 
21   OS << "LLVM StackMap Version: " << SMP.getVersion()
22      << "\nNum Functions: " << SMP.getNumFunctions();
23 
24   // Functions:
25   for (const auto &F : SMP.functions())
26     OS << "\n  Function address: " << F.getFunctionAddress()
27        << ", stack size: " << F.getStackSize();
28 
29   // Constants:
30   OS << "\nNum Constants: " << SMP.getNumConstants();
31   unsigned ConstantIndex = 0;
32   for (const auto &C : SMP.constants())
33     OS << "\n  #" << ++ConstantIndex << ": " << C.getValue();
34 
35   // Records:
36   OS << "\nNum Records: " << SMP.getNumRecords();
37   for (const auto &R : SMP.records()) {
38     OS << "\n  Record ID: " << R.getID()
39        << ", instruction offset: " << R.getInstructionOffset()
40        << "\n    " << R.getNumLocations() << " locations:";
41 
42     unsigned LocationIndex = 0;
43     for (const auto &Loc : R.locations()) {
44       OS << "\n      #" << ++LocationIndex << ": ";
45       switch (Loc.getKind()) {
46       case StackMapParserT::LocationKind::Register:
47         OS << "Register R#" << Loc.getDwarfRegNum();
48         break;
49       case StackMapParserT::LocationKind::Direct:
50         OS << "Direct R#" << Loc.getDwarfRegNum() << " + "
51            << Loc.getOffset();
52         break;
53       case StackMapParserT::LocationKind::Indirect:
54         OS << "Indirect [R#" << Loc.getDwarfRegNum() << " + "
55            << Loc.getOffset() << "]";
56         break;
57       case StackMapParserT::LocationKind::Constant:
58         OS << "Constant " << Loc.getSmallConstant();
59         break;
60       case StackMapParserT::LocationKind::ConstantIndex:
61         OS << "ConstantIndex #" << Loc.getConstantIndex() << " ("
62            << SMP.getConstant(Loc.getConstantIndex()).getValue() << ")";
63         break;
64       }
65     }
66 
67     OS << "\n    " << R.getNumLiveOuts() << " live-outs: [ ";
68     for (const auto &LO : R.liveouts())
69       OS << "R#" << LO.getDwarfRegNum() << " ("
70          << LO.getSizeInBytes() << "-bytes) ";
71     OS << "]\n";
72   }
73 
74  OS << "\n";
75 
76 }
77 
78 }
79 
80 #endif
81