1 /*
2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 /* This files contains process dump x86 64 regs module. */
17
18 #include "dfx_regs.h"
19
20 #include <csignal>
21 #include <cstdio>
22 #include <cstdlib>
23 #include <securec.h>
24 #include "dfx_define.h"
25
26 namespace OHOS {
27 namespace HiviewDFX {
28 enum UnWindRegIndex {
29 RAX = 0,
30 RDX,
31 RCX,
32 RBX,
33 RSI,
34 RDI,
35 RBP,
36 RSP,
37 R8,
38 R9,
39 R10,
40 R11,
41 R12,
42 R13,
43 R14,
44 R15,
45 RIP
46 };
GetSpecialRegisterName(uintptr_t val) const47 std::string DfxRegsX86_64::GetSpecialRegisterName(uintptr_t val) const
48 {
49 return "";
50 }
51
DfxRegsX86_64(const ucontext_t & context)52 DfxRegsX86_64::DfxRegsX86_64(const ucontext_t &context)
53 {
54 std::vector<uintptr_t> regs {};
55
56 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_RAX]));
57 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_RDX]));
58 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_RCX]));
59 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_RBX]));
60 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_RSI]));
61 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_RDI]));
62 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_RBP]));
63 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_RSP]));
64 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_R8]));
65 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_R9]));
66 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_R10]));
67 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_R11]));
68 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_R12]));
69 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_R13]));
70 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_R14]));
71 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_R15]));
72 regs.push_back((uintptr_t)(context.uc_mcontext.gregs[REG_RIP]));
73
74 SetRegs(regs);
75 }
76
PrintRegs() const77 std::string DfxRegsX86_64::PrintRegs() const
78 {
79 std::string regString = "";
80 char buf[REGS_PRINT_LEN_X86] = {0};
81
82 regString = regString + "Registers:\n";
83
84 std::vector<uintptr_t> regs = GetRegsData();
85
86 PrintFormat(buf, sizeof(buf), " rax:%016lx rdx:%016lx rcx:%016lx rbx:%016lx\n", \
87 regs[RAX], regs[RDX], regs[RCX], regs[RBX]);
88
89 PrintFormat(buf + strlen(buf), sizeof(buf) - strlen(buf), " rsi:%016lx rdi:%016lx rbp:%016lx rsp:%016lx\n", \
90 regs[RSI], regs[RDI], regs[RBP], regs[RSP]);
91
92 PrintFormat(buf + strlen(buf), sizeof(buf) - strlen(buf), " r8:%016lx r9:%016lx r10:%016lx r11:%016lx\n", \
93 regs[R8], regs[R9], regs[R10], regs[R11]);
94
95 PrintFormat(buf + strlen(buf), sizeof(buf) - strlen(buf), \
96 " r12:%016lx r13:%016lx r14:%016lx r15:%016lx rip:%016lx\n", \
97 regs[R12], regs[R13], regs[R14], regs[R15], regs[RIP]);
98
99 regString = regString + std::string(buf);
100 return regString;
101 }
102
GetPC() const103 uintptr_t DfxRegsX86_64::GetPC() const
104 {
105 return regsData_[RIP];
106 }
107
GetLR() const108 uintptr_t DfxRegsX86_64::GetLR() const
109 {
110 return 0;
111 }
112 } // namespace HiviewDFX
113 } // namespace OHOS
114