1/*
2 * Copyright (C) 2015-2017 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "MacroAssemblerPrinter.h"
28
29#if ENABLE(ASSEMBLER)
30#if ENABLE(MASM_PROBE)
31
32#include "MacroAssembler.h"
33#include <inttypes.h>
34
35namespace JSC {
36
37namespace Printer {
38
39using CPUState = Probe::CPUState;
40using RegisterID = MacroAssembler::RegisterID;
41using FPRegisterID = MacroAssembler::FPRegisterID;
42
43template<typename T> T nextID(T id) { return static_cast<T>(id + 1); }
44
45void printAllRegisters(PrintStream& out, Context& context)
46{
47 auto& cpu = context.probeContext.cpu;
48 unsigned charsToIndent = context.data.as<unsigned>();
49
50 auto indent = [&] () {
51 for (unsigned i = 0; i < charsToIndent; ++i)
52 out.print(" ");
53 };
54#define INDENT indent()
55
56 INDENT; out.print("cpu: {\n");
57
58#if USE(JSVALUE32_64)
59 #define INTPTR_HEX_VALUE_FORMAT "0x%08" PRIxPTR
60#else
61 #define INTPTR_HEX_VALUE_FORMAT "0x%016" PRIxPTR
62#endif
63
64 for (auto id = MacroAssembler::firstRegister(); id <= MacroAssembler::lastRegister(); id = nextID(id)) {
65 intptr_t value = static_cast<intptr_t>(cpu.gpr(id));
66 INDENT; out.printf(" %6s: " INTPTR_HEX_VALUE_FORMAT " %" PRIdPTR "\n", cpu.gprName(id), value, value);
67 }
68 for (auto id = MacroAssembler::firstSPRegister(); id <= MacroAssembler::lastSPRegister(); id = nextID(id)) {
69 intptr_t value = static_cast<intptr_t>(cpu.spr(id));
70 INDENT; out.printf(" %6s: " INTPTR_HEX_VALUE_FORMAT " %" PRIdPTR "\n", cpu.sprName(id), value, value);
71 }
72 #undef INTPTR_HEX_VALUE_FORMAT
73
74 for (auto id = MacroAssembler::firstFPRegister(); id <= MacroAssembler::lastFPRegister(); id = nextID(id)) {
75 uint64_t u = bitwise_cast<uint64_t>(cpu.fpr(id));
76 double d = cpu.fpr(id);
77 INDENT; out.printf(" %6s: 0x%016" PRIx64 " %.13g\n", cpu.fprName(id), u, d);
78 }
79
80 INDENT; out.print("}\n");
81#undef INDENT
82
83}
84
85void printPCRegister(PrintStream& out, Context& context)
86{
87 auto cpu = context.probeContext.cpu;
88 void* value = cpu.pc();
89 out.printf("pc:<%p %" PRIdPTR ">", value, bitwise_cast<intptr_t>(value));
90}
91
92void printRegisterID(PrintStream& out, Context& context)
93{
94 RegisterID regID = context.data.as<RegisterID>();
95 const char* name = CPUState::gprName(regID);
96 intptr_t value = context.probeContext.gpr(regID);
97 out.printf("%s:<%p %" PRIdPTR ">", name, bitwise_cast<void*>(value), value);
98}
99
100void printFPRegisterID(PrintStream& out, Context& context)
101{
102 FPRegisterID regID = context.data.as<FPRegisterID>();
103 const char* name = CPUState::fprName(regID);
104 double value = context.probeContext.fpr(regID);
105 out.printf("%s:<0x%016" PRIx64 " %.13g>", name, bitwise_cast<uint64_t>(value), value);
106}
107
108void printAddress(PrintStream& out, Context& context)
109{
110 MacroAssembler::Address address = context.data.as<MacroAssembler::Address>();
111 RegisterID regID = address.base;
112 const char* name = CPUState::gprName(regID);
113 intptr_t value = context.probeContext.gpr(regID);
114 out.printf("Address{base:%s:<%p %" PRIdPTR ">, offset:<0x%x %d>", name, bitwise_cast<void*>(value), value, address.offset, address.offset);
115}
116
117void printMemory(PrintStream& out, Context& context)
118{
119 const Memory& memory = context.data.as<Memory>();
120
121 uint8_t* ptr = nullptr;
122 switch (memory.addressType) {
123 case Memory::AddressType::Address: {
124 ptr = reinterpret_cast<uint8_t*>(context.probeContext.gpr(memory.u.address.base));
125 ptr += memory.u.address.offset;
126 break;
127 }
128 case Memory::AddressType::AbsoluteAddress: {
129 ptr = reinterpret_cast<uint8_t*>(const_cast<void*>(memory.u.absoluteAddress.m_ptr));
130 break;
131 }
132 }
133
134 if (memory.dumpStyle == Memory::SingleWordDump) {
135 if (memory.numBytes == sizeof(int8_t)) {
136 auto p = reinterpret_cast<int8_t*>(ptr);
137 out.printf("%p:<0x%02x %d>", p, *p, *p);
138 return;
139 }
140 if (memory.numBytes == sizeof(int16_t)) {
141 auto p = bitwise_cast<int16_t*>(ptr);
142 out.printf("%p:<0x%04x %d>", p, *p, *p);
143 return;
144 }
145 if (memory.numBytes == sizeof(int32_t)) {
146 auto p = bitwise_cast<int32_t*>(ptr);
147 out.printf("%p:<0x%08x %d>", p, *p, *p);
148 return;
149 }
150 if (memory.numBytes == sizeof(int64_t)) {
151 auto p = bitwise_cast<int64_t*>(ptr);
152 out.printf("%p:<0x%016" PRIx64 " %" PRId64 ">", p, *p, *p);
153 return;
154 }
155 // Else, unknown word size. Fall thru and dump in the generic way.
156 }
157
158 // Generic dump: dump rows of 16 bytes in 4 byte groupings.
159 size_t numBytes = memory.numBytes;
160 for (size_t i = 0; i < numBytes; i++) {
161 if (!(i % 16))
162 out.printf("%p: ", &ptr[i]);
163 else if (!(i % 4))
164 out.printf(" ");
165
166 out.printf("%02x", ptr[i]);
167
168 if (i % 16 == 15)
169 out.print("\n");
170 }
171 if (numBytes % 16 < 15)
172 out.print("\n");
173}
174
175void printCallback(Probe::Context& probeContext)
176{
177 auto& out = WTF::dataFile();
178 PrintRecordList& list = *probeContext.arg<PrintRecordList*>();
179 for (size_t i = 0; i < list.size(); i++) {
180 auto& record = list[i];
181 Context context(probeContext, record.data);
182 record.printer(out, context);
183 }
184}
185
186} // namespace Printer
187} // namespace JSC
188
189#endif // ENABLE(MASM_PROBE)
190#endif // ENABLE(ASSEMBLER)
191