1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 * vim: set ts=8 sts=2 et sw=2 tw=80:
3 * This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #ifndef jit_PerfSpewer_h
8 #define jit_PerfSpewer_h
9
10 #ifdef JS_ION_PERF
11 # include <stdio.h>
12 #endif
13
14 #include "jit/Label.h"
15
16 namespace {
17 struct AutoLockPerfMap;
18 }
19
20 namespace js {
21 namespace jit {
22
23 class MBasicBlock;
24 class MacroAssembler;
25
26 #ifdef JS_ION_PERF
27 void CheckPerf();
28 bool PerfBlockEnabled();
29 bool PerfFuncEnabled();
PerfEnabled()30 static inline bool PerfEnabled() {
31 return PerfBlockEnabled() || PerfFuncEnabled();
32 }
33 #else
CheckPerf()34 static inline void CheckPerf() {}
PerfBlockEnabled()35 static inline bool PerfBlockEnabled() { return false; }
PerfFuncEnabled()36 static inline bool PerfFuncEnabled() { return false; }
PerfEnabled()37 static inline bool PerfEnabled() { return false; }
38 #endif
39
40 #ifdef JS_ION_PERF
41
42 struct Record {
43 const char* filename;
44 unsigned lineNumber;
45 unsigned columnNumber;
46 uint32_t id;
47 Label start, end;
48 size_t startOffset, endOffset;
49
RecordRecord50 Record(const char* filename, unsigned lineNumber, unsigned columnNumber,
51 uint32_t id)
52 : filename(filename),
53 lineNumber(lineNumber),
54 columnNumber(columnNumber),
55 id(id),
56 startOffset(0u),
57 endOffset(0u) {}
58 };
59
60 typedef Vector<Record, 1, SystemAllocPolicy> BasicBlocksVector;
61
62 class PerfSpewer {
63 protected:
64 static uint32_t nextFunctionIndex;
65
66 public:
67 Label endInlineCode;
68
69 protected:
70 BasicBlocksVector basicBlocks_;
71
72 public:
73 [[nodiscard]] virtual bool startBasicBlock(MBasicBlock* blk,
74 MacroAssembler& masm);
75 virtual void endBasicBlock(MacroAssembler& masm);
76 void noteEndInlineCode(MacroAssembler& masm);
77
78 void writeProfile(JSScript* script, JitCode* code, MacroAssembler& masm);
79
80 static void WriteEntry(const AutoLockPerfMap&, uintptr_t address, size_t size,
81 const char* fmt, ...) MOZ_FORMAT_PRINTF(4, 5);
82 };
83
84 void writePerfSpewerBaselineProfile(JSScript* script, JitCode* code);
85 void writePerfSpewerJitCodeProfile(JitCode* code, const char* msg);
86
87 // wasm doesn't support block annotations.
88 class WasmPerfSpewer : public PerfSpewer {
89 public:
startBasicBlock(MBasicBlock * blk,MacroAssembler & masm)90 [[nodiscard]] bool startBasicBlock(MBasicBlock* blk, MacroAssembler& masm) {
91 return true;
92 }
endBasicBlock(MacroAssembler & masm)93 void endBasicBlock(MacroAssembler& masm) {}
94 };
95
96 void writePerfSpewerWasmMap(uintptr_t base, uintptr_t size,
97 const char* filename, const char* annotation);
98 void writePerfSpewerWasmFunctionMap(uintptr_t base, uintptr_t size,
99 const char* filename, unsigned lineno,
100 const char* funcName);
101
102 #endif // JS_ION_PERF
103
104 } // namespace jit
105 } // namespace js
106
107 #endif /* jit_PerfSpewer_h */
108