DWARFDefines.cpp revision 353358 
1//===-- DWARFDefines.cpp ----------------------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "DWARFDefines.h"
10#include "lldb/Utility/ConstString.h"
11#include <cstdio>
12#include <cstring>
13#include <string>
14
15namespace lldb_private {
16
17const char *DW_TAG_value_to_name(uint32_t val) {
18  static char invalid[100];
19
20  if (val == 0)
21    return "NULL";
22
23  llvm::StringRef llvmstr = llvm::dwarf::TagString(val);
24  if (llvmstr.empty()) {
25    snprintf(invalid, sizeof(invalid), "Unknown DW_TAG constant: 0x%x", val);
26    return invalid;
27  }
28  return llvmstr.data();
29}
30
31const char *DW_AT_value_to_name(uint32_t val) {
32  static char invalid[100];
33  llvm::StringRef llvmstr = llvm::dwarf::AttributeString(val);
34  if (llvmstr.empty()) {
35    snprintf(invalid, sizeof(invalid), "Unknown DW_AT constant: 0x%x", val);
36    return invalid;
37  }
38  return llvmstr.data();
39}
40
41const char *DW_FORM_value_to_name(uint32_t val) {
42  static char invalid[100];
43  llvm::StringRef llvmstr = llvm::dwarf::FormEncodingString(val);
44  if (llvmstr.empty()) {
45    snprintf(invalid, sizeof(invalid), "Unknown DW_FORM constant: 0x%x", val);
46    return invalid;
47  }
48  return llvmstr.data();
49}
50
51const char *DW_OP_value_to_name(uint32_t val) {
52  static char invalid[100];
53  llvm::StringRef llvmstr = llvm::dwarf::OperationEncodingString(val);
54  if (llvmstr.empty()) {
55    snprintf(invalid, sizeof(invalid), "Unknown DW_OP constant: 0x%x", val);
56    return invalid;
57  }
58  return llvmstr.data();
59}
60
61DRC_class DW_OP_value_to_class(uint32_t val) {
62  switch (val) {
63  case 0x03:
64    return DRC_ONEOPERAND;
65  case 0x06:
66    return DRC_ZEROOPERANDS;
67  case 0x08:
68    return DRC_ONEOPERAND;
69  case 0x09:
70    return DRC_ONEOPERAND;
71  case 0x0a:
72    return DRC_ONEOPERAND;
73  case 0x0b:
74    return DRC_ONEOPERAND;
75  case 0x0c:
76    return DRC_ONEOPERAND;
77  case 0x0d:
78    return DRC_ONEOPERAND;
79  case 0x0e:
80    return DRC_ONEOPERAND;
81  case 0x0f:
82    return DRC_ONEOPERAND;
83  case 0x10:
84    return DRC_ONEOPERAND;
85  case 0x11:
86    return DRC_ONEOPERAND;
87  case 0x12:
88    return DRC_ZEROOPERANDS;
89  case 0x13:
90    return DRC_ZEROOPERANDS;
91  case 0x14:
92    return DRC_ZEROOPERANDS;
93  case 0x15:
94    return DRC_ONEOPERAND;
95  case 0x16:
96    return DRC_ZEROOPERANDS;
97  case 0x17:
98    return DRC_ZEROOPERANDS;
99  case 0x18:
100    return DRC_ZEROOPERANDS;
101  case 0x19:
102    return DRC_ZEROOPERANDS;
103  case 0x1a:
104    return DRC_ZEROOPERANDS;
105  case 0x1b:
106    return DRC_ZEROOPERANDS;
107  case 0x1c:
108    return DRC_ZEROOPERANDS;
109  case 0x1d:
110    return DRC_ZEROOPERANDS;
111  case 0x1e:
112    return DRC_ZEROOPERANDS;
113  case 0x1f:
114    return DRC_ZEROOPERANDS;
115  case 0x20:
116    return DRC_ZEROOPERANDS;
117  case 0x21:
118    return DRC_ZEROOPERANDS;
119  case 0x22:
120    return DRC_ZEROOPERANDS;
121  case 0x23:
122    return DRC_ONEOPERAND;
123  case 0x24:
124    return DRC_ZEROOPERANDS;
125  case 0x25:
126    return DRC_ZEROOPERANDS;
127  case 0x26:
128    return DRC_ZEROOPERANDS;
129  case 0x27:
130    return DRC_ZEROOPERANDS;
131  case 0x2f:
132    return DRC_ONEOPERAND;
133  case 0x28:
134    return DRC_ONEOPERAND;
135  case 0x29:
136    return DRC_ZEROOPERANDS;
137  case 0x2a:
138    return DRC_ZEROOPERANDS;
139  case 0x2b:
140    return DRC_ZEROOPERANDS;
141  case 0x2c:
142    return DRC_ZEROOPERANDS;
143  case 0x2d:
144    return DRC_ZEROOPERANDS;
145  case 0x2e:
146    return DRC_ZEROOPERANDS;
147  case 0x30:
148    return DRC_ZEROOPERANDS;
149  case 0x31:
150    return DRC_ZEROOPERANDS;
151  case 0x32:
152    return DRC_ZEROOPERANDS;
153  case 0x33:
154    return DRC_ZEROOPERANDS;
155  case 0x34:
156    return DRC_ZEROOPERANDS;
157  case 0x35:
158    return DRC_ZEROOPERANDS;
159  case 0x36:
160    return DRC_ZEROOPERANDS;
161  case 0x37:
162    return DRC_ZEROOPERANDS;
163  case 0x38:
164    return DRC_ZEROOPERANDS;
165  case 0x39:
166    return DRC_ZEROOPERANDS;
167  case 0x3a:
168    return DRC_ZEROOPERANDS;
169  case 0x3b:
170    return DRC_ZEROOPERANDS;
171  case 0x3c:
172    return DRC_ZEROOPERANDS;
173  case 0x3d:
174    return DRC_ZEROOPERANDS;
175  case 0x3e:
176    return DRC_ZEROOPERANDS;
177  case 0x3f:
178    return DRC_ZEROOPERANDS;
179  case 0x40:
180    return DRC_ZEROOPERANDS;
181  case 0x41:
182    return DRC_ZEROOPERANDS;
183  case 0x42:
184    return DRC_ZEROOPERANDS;
185  case 0x43:
186    return DRC_ZEROOPERANDS;
187  case 0x44:
188    return DRC_ZEROOPERANDS;
189  case 0x45:
190    return DRC_ZEROOPERANDS;
191  case 0x46:
192    return DRC_ZEROOPERANDS;
193  case 0x47:
194    return DRC_ZEROOPERANDS;
195  case 0x48:
196    return DRC_ZEROOPERANDS;
197  case 0x49:
198    return DRC_ZEROOPERANDS;
199  case 0x4a:
200    return DRC_ZEROOPERANDS;
201  case 0x4b:
202    return DRC_ZEROOPERANDS;
203  case 0x4c:
204    return DRC_ZEROOPERANDS;
205  case 0x4d:
206    return DRC_ZEROOPERANDS;
207  case 0x4e:
208    return DRC_ZEROOPERANDS;
209  case 0x4f:
210    return DRC_ZEROOPERANDS;
211  case 0x50:
212    return DRC_ZEROOPERANDS;
213  case 0x51:
214    return DRC_ZEROOPERANDS;
215  case 0x52:
216    return DRC_ZEROOPERANDS;
217  case 0x53:
218    return DRC_ZEROOPERANDS;
219  case 0x54:
220    return DRC_ZEROOPERANDS;
221  case 0x55:
222    return DRC_ZEROOPERANDS;
223  case 0x56:
224    return DRC_ZEROOPERANDS;
225  case 0x57:
226    return DRC_ZEROOPERANDS;
227  case 0x58:
228    return DRC_ZEROOPERANDS;
229  case 0x59:
230    return DRC_ZEROOPERANDS;
231  case 0x5a:
232    return DRC_ZEROOPERANDS;
233  case 0x5b:
234    return DRC_ZEROOPERANDS;
235  case 0x5c:
236    return DRC_ZEROOPERANDS;
237  case 0x5d:
238    return DRC_ZEROOPERANDS;
239  case 0x5e:
240    return DRC_ZEROOPERANDS;
241  case 0x5f:
242    return DRC_ZEROOPERANDS;
243  case 0x60:
244    return DRC_ZEROOPERANDS;
245  case 0x61:
246    return DRC_ZEROOPERANDS;
247  case 0x62:
248    return DRC_ZEROOPERANDS;
249  case 0x63:
250    return DRC_ZEROOPERANDS;
251  case 0x64:
252    return DRC_ZEROOPERANDS;
253  case 0x65:
254    return DRC_ZEROOPERANDS;
255  case 0x66:
256    return DRC_ZEROOPERANDS;
257  case 0x67:
258    return DRC_ZEROOPERANDS;
259  case 0x68:
260    return DRC_ZEROOPERANDS;
261  case 0x69:
262    return DRC_ZEROOPERANDS;
263  case 0x6a:
264    return DRC_ZEROOPERANDS;
265  case 0x6b:
266    return DRC_ZEROOPERANDS;
267  case 0x6c:
268    return DRC_ZEROOPERANDS;
269  case 0x6d:
270    return DRC_ZEROOPERANDS;
271  case 0x6e:
272    return DRC_ZEROOPERANDS;
273  case 0x6f:
274    return DRC_ZEROOPERANDS;
275  case 0x70:
276    return DRC_ONEOPERAND;
277  case 0x71:
278    return DRC_ONEOPERAND;
279  case 0x72:
280    return DRC_ONEOPERAND;
281  case 0x73:
282    return DRC_ONEOPERAND;
283  case 0x74:
284    return DRC_ONEOPERAND;
285  case 0x75:
286    return DRC_ONEOPERAND;
287  case 0x76:
288    return DRC_ONEOPERAND;
289  case 0x77:
290    return DRC_ONEOPERAND;
291  case 0x78:
292    return DRC_ONEOPERAND;
293  case 0x79:
294    return DRC_ONEOPERAND;
295  case 0x7a:
296    return DRC_ONEOPERAND;
297  case 0x7b:
298    return DRC_ONEOPERAND;
299  case 0x7c:
300    return DRC_ONEOPERAND;
301  case 0x7d:
302    return DRC_ONEOPERAND;
303  case 0x7e:
304    return DRC_ONEOPERAND;
305  case 0x7f:
306    return DRC_ONEOPERAND;
307  case 0x80:
308    return DRC_ONEOPERAND;
309  case 0x81:
310    return DRC_ONEOPERAND;
311  case 0x82:
312    return DRC_ONEOPERAND;
313  case 0x83:
314    return DRC_ONEOPERAND;
315  case 0x84:
316    return DRC_ONEOPERAND;
317  case 0x85:
318    return DRC_ONEOPERAND;
319  case 0x86:
320    return DRC_ONEOPERAND;
321  case 0x87:
322    return DRC_ONEOPERAND;
323  case 0x88:
324    return DRC_ONEOPERAND;
325  case 0x89:
326    return DRC_ONEOPERAND;
327  case 0x8a:
328    return DRC_ONEOPERAND;
329  case 0x8b:
330    return DRC_ONEOPERAND;
331  case 0x8c:
332    return DRC_ONEOPERAND;
333  case 0x8d:
334    return DRC_ONEOPERAND;
335  case 0x8e:
336    return DRC_ONEOPERAND;
337  case 0x8f:
338    return DRC_ONEOPERAND;
339  case 0x90:
340    return DRC_ONEOPERAND;
341  case 0x91:
342    return DRC_ONEOPERAND;
343  case 0x92:
344    return DRC_TWOOPERANDS;
345  case 0x93:
346    return DRC_ONEOPERAND;
347  case 0x94:
348    return DRC_ONEOPERAND;
349  case 0x95:
350    return DRC_ONEOPERAND;
351  case 0x96:
352    return DRC_ZEROOPERANDS;
353  case 0x97:
354    return DRC_DWARFv3 | DRC_ZEROOPERANDS;
355  case 0x98:
356    return DRC_DWARFv3 | DRC_ONEOPERAND;
357  case 0x99:
358    return DRC_DWARFv3 | DRC_ONEOPERAND;
359  case 0x9a:
360    return DRC_DWARFv3 | DRC_ONEOPERAND;
361  case 0xf0:
362    return DRC_ZEROOPERANDS; /* DW_OP_APPLE_uninit */
363  case 0xe0:
364    return 0;
365  case 0xff:
366    return 0;
367  default:
368    return 0;
369  }
370}
371
372const char *DW_ATE_value_to_name(uint32_t val) {
373  static char invalid[100];
374  llvm::StringRef llvmstr = llvm::dwarf::AttributeEncodingString(val);
375  if (llvmstr.empty()) {
376    snprintf(invalid, sizeof(invalid), "Unknown DW_ATE constant: 0x%x", val);
377    return invalid;
378  }
379  return llvmstr.data();
380}
381
382const char *DW_LANG_value_to_name(uint32_t val) {
383  static char invalid[100];
384  llvm::StringRef llvmstr = llvm::dwarf::LanguageString(val);
385  if (llvmstr.empty()) {
386    snprintf(invalid, sizeof(invalid), "Unknown DW_LANG constant: 0x%x", val);
387    return invalid;
388  }
389  return llvmstr.data();
390}
391
392const char *DW_LNS_value_to_name(uint32_t val) {
393  static char invalid[100];
394  llvm::StringRef llvmstr = llvm::dwarf::LNStandardString(val);
395  if (llvmstr.empty()) {
396    snprintf(invalid, sizeof(invalid), "Unknown DW_LNS constant: 0x%x", val);
397    return invalid;
398  }
399  return llvmstr.data();
400}
401
402} // namespace lldb_private
403