1 //===------------ DebugInfo.h - LLVM C API Debug Info API -----------------===//
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 /// This file declares the C API endpoints for generating DWARF Debug Info
10 ///
11 /// Note: This interface is experimental. It is *NOT* stable, and may be
12 ///       changed without warning.
13 ///
14 //===----------------------------------------------------------------------===//
15 
16 #ifndef LLVM_C_DEBUGINFO_H
17 #define LLVM_C_DEBUGINFO_H
18 
19 #include "llvm-c/Core.h"
20 #include "llvm-c/ExternC.h"
21 
22 LLVM_C_EXTERN_C_BEGIN
23 
24 /**
25  * Debug info flags.
26  */
27 typedef enum {
28   LLVMDIFlagZero = 0,
29   LLVMDIFlagPrivate = 1,
30   LLVMDIFlagProtected = 2,
31   LLVMDIFlagPublic = 3,
32   LLVMDIFlagFwdDecl = 1 << 2,
33   LLVMDIFlagAppleBlock = 1 << 3,
34   LLVMDIFlagReservedBit4 = 1 << 4,
35   LLVMDIFlagVirtual = 1 << 5,
36   LLVMDIFlagArtificial = 1 << 6,
37   LLVMDIFlagExplicit = 1 << 7,
38   LLVMDIFlagPrototyped = 1 << 8,
39   LLVMDIFlagObjcClassComplete = 1 << 9,
40   LLVMDIFlagObjectPointer = 1 << 10,
41   LLVMDIFlagVector = 1 << 11,
42   LLVMDIFlagStaticMember = 1 << 12,
43   LLVMDIFlagLValueReference = 1 << 13,
44   LLVMDIFlagRValueReference = 1 << 14,
45   LLVMDIFlagReserved = 1 << 15,
46   LLVMDIFlagSingleInheritance = 1 << 16,
47   LLVMDIFlagMultipleInheritance = 2 << 16,
48   LLVMDIFlagVirtualInheritance = 3 << 16,
49   LLVMDIFlagIntroducedVirtual = 1 << 18,
50   LLVMDIFlagBitField = 1 << 19,
51   LLVMDIFlagNoReturn = 1 << 20,
52   LLVMDIFlagTypePassByValue = 1 << 22,
53   LLVMDIFlagTypePassByReference = 1 << 23,
54   LLVMDIFlagEnumClass = 1 << 24,
55   LLVMDIFlagFixedEnum = LLVMDIFlagEnumClass, // Deprecated.
56   LLVMDIFlagThunk = 1 << 25,
57   LLVMDIFlagNonTrivial = 1 << 26,
58   LLVMDIFlagBigEndian = 1 << 27,
59   LLVMDIFlagLittleEndian = 1 << 28,
60   LLVMDIFlagIndirectVirtualBase = (1 << 2) | (1 << 5),
61   LLVMDIFlagAccessibility = LLVMDIFlagPrivate | LLVMDIFlagProtected |
62                             LLVMDIFlagPublic,
63   LLVMDIFlagPtrToMemberRep = LLVMDIFlagSingleInheritance |
64                              LLVMDIFlagMultipleInheritance |
65                              LLVMDIFlagVirtualInheritance
66 } LLVMDIFlags;
67 
68 /**
69  * Source languages known by DWARF.
70  */
71 typedef enum {
72   LLVMDWARFSourceLanguageC89,
73   LLVMDWARFSourceLanguageC,
74   LLVMDWARFSourceLanguageAda83,
75   LLVMDWARFSourceLanguageC_plus_plus,
76   LLVMDWARFSourceLanguageCobol74,
77   LLVMDWARFSourceLanguageCobol85,
78   LLVMDWARFSourceLanguageFortran77,
79   LLVMDWARFSourceLanguageFortran90,
80   LLVMDWARFSourceLanguagePascal83,
81   LLVMDWARFSourceLanguageModula2,
82   // New in DWARF v3:
83   LLVMDWARFSourceLanguageJava,
84   LLVMDWARFSourceLanguageC99,
85   LLVMDWARFSourceLanguageAda95,
86   LLVMDWARFSourceLanguageFortran95,
87   LLVMDWARFSourceLanguagePLI,
88   LLVMDWARFSourceLanguageObjC,
89   LLVMDWARFSourceLanguageObjC_plus_plus,
90   LLVMDWARFSourceLanguageUPC,
91   LLVMDWARFSourceLanguageD,
92   // New in DWARF v4:
93   LLVMDWARFSourceLanguagePython,
94   // New in DWARF v5:
95   LLVMDWARFSourceLanguageOpenCL,
96   LLVMDWARFSourceLanguageGo,
97   LLVMDWARFSourceLanguageModula3,
98   LLVMDWARFSourceLanguageHaskell,
99   LLVMDWARFSourceLanguageC_plus_plus_03,
100   LLVMDWARFSourceLanguageC_plus_plus_11,
101   LLVMDWARFSourceLanguageOCaml,
102   LLVMDWARFSourceLanguageRust,
103   LLVMDWARFSourceLanguageC11,
104   LLVMDWARFSourceLanguageSwift,
105   LLVMDWARFSourceLanguageJulia,
106   LLVMDWARFSourceLanguageDylan,
107   LLVMDWARFSourceLanguageC_plus_plus_14,
108   LLVMDWARFSourceLanguageFortran03,
109   LLVMDWARFSourceLanguageFortran08,
110   LLVMDWARFSourceLanguageRenderScript,
111   LLVMDWARFSourceLanguageBLISS,
112   // Vendor extensions:
113   LLVMDWARFSourceLanguageMips_Assembler,
114   LLVMDWARFSourceLanguageGOOGLE_RenderScript,
115   LLVMDWARFSourceLanguageBORLAND_Delphi
116 } LLVMDWARFSourceLanguage;
117 
118 /**
119  * The amount of debug information to emit.
120  */
121 typedef enum {
122     LLVMDWARFEmissionNone = 0,
123     LLVMDWARFEmissionFull,
124     LLVMDWARFEmissionLineTablesOnly
125 } LLVMDWARFEmissionKind;
126 
127 /**
128  * The kind of metadata nodes.
129  */
130 enum {
131   LLVMMDStringMetadataKind,
132   LLVMConstantAsMetadataMetadataKind,
133   LLVMLocalAsMetadataMetadataKind,
134   LLVMDistinctMDOperandPlaceholderMetadataKind,
135   LLVMMDTupleMetadataKind,
136   LLVMDILocationMetadataKind,
137   LLVMDIExpressionMetadataKind,
138   LLVMDIGlobalVariableExpressionMetadataKind,
139   LLVMGenericDINodeMetadataKind,
140   LLVMDISubrangeMetadataKind,
141   LLVMDIEnumeratorMetadataKind,
142   LLVMDIBasicTypeMetadataKind,
143   LLVMDIDerivedTypeMetadataKind,
144   LLVMDICompositeTypeMetadataKind,
145   LLVMDISubroutineTypeMetadataKind,
146   LLVMDIFileMetadataKind,
147   LLVMDICompileUnitMetadataKind,
148   LLVMDISubprogramMetadataKind,
149   LLVMDILexicalBlockMetadataKind,
150   LLVMDILexicalBlockFileMetadataKind,
151   LLVMDINamespaceMetadataKind,
152   LLVMDIModuleMetadataKind,
153   LLVMDITemplateTypeParameterMetadataKind,
154   LLVMDITemplateValueParameterMetadataKind,
155   LLVMDIGlobalVariableMetadataKind,
156   LLVMDILocalVariableMetadataKind,
157   LLVMDILabelMetadataKind,
158   LLVMDIObjCPropertyMetadataKind,
159   LLVMDIImportedEntityMetadataKind,
160   LLVMDIMacroMetadataKind,
161   LLVMDIMacroFileMetadataKind,
162   LLVMDICommonBlockMetadataKind
163 };
164 typedef unsigned LLVMMetadataKind;
165 
166 /**
167  * An LLVM DWARF type encoding.
168  */
169 typedef unsigned LLVMDWARFTypeEncoding;
170 
171 /**
172  * Describes the kind of macro declaration used for LLVMDIBuilderCreateMacro.
173  * @see llvm::dwarf::MacinfoRecordType
174  * @note Values are from DW_MACINFO_* constants in the DWARF specification.
175  */
176 typedef enum {
177   LLVMDWARFMacinfoRecordTypeDefine = 0x01,
178   LLVMDWARFMacinfoRecordTypeMacro = 0x02,
179   LLVMDWARFMacinfoRecordTypeStartFile = 0x03,
180   LLVMDWARFMacinfoRecordTypeEndFile = 0x04,
181   LLVMDWARFMacinfoRecordTypeVendorExt = 0xff
182 } LLVMDWARFMacinfoRecordType;
183 
184 /**
185  * The current debug metadata version number.
186  */
187 unsigned LLVMDebugMetadataVersion(void);
188 
189 /**
190  * The version of debug metadata that's present in the provided \c Module.
191  */
192 unsigned LLVMGetModuleDebugMetadataVersion(LLVMModuleRef Module);
193 
194 /**
195  * Strip debug info in the module if it exists.
196  * To do this, we remove all calls to the debugger intrinsics and any named
197  * metadata for debugging. We also remove debug locations for instructions.
198  * Return true if module is modified.
199  */
200 LLVMBool LLVMStripModuleDebugInfo(LLVMModuleRef Module);
201 
202 /**
203  * Construct a builder for a module, and do not allow for unresolved nodes
204  * attached to the module.
205  */
206 LLVMDIBuilderRef LLVMCreateDIBuilderDisallowUnresolved(LLVMModuleRef M);
207 
208 /**
209  * Construct a builder for a module and collect unresolved nodes attached
210  * to the module in order to resolve cycles during a call to
211  * \c LLVMDIBuilderFinalize.
212  */
213 LLVMDIBuilderRef LLVMCreateDIBuilder(LLVMModuleRef M);
214 
215 /**
216  * Deallocates the \c DIBuilder and everything it owns.
217  * @note You must call \c LLVMDIBuilderFinalize before this
218  */
219 void LLVMDisposeDIBuilder(LLVMDIBuilderRef Builder);
220 
221 /**
222  * Construct any deferred debug info descriptors.
223  */
224 void LLVMDIBuilderFinalize(LLVMDIBuilderRef Builder);
225 
226 /**
227  * A CompileUnit provides an anchor for all debugging
228  * information generated during this instance of compilation.
229  * \param Lang          Source programming language, eg.
230  *                      \c LLVMDWARFSourceLanguageC99
231  * \param FileRef       File info.
232  * \param Producer      Identify the producer of debugging information
233  *                      and code.  Usually this is a compiler
234  *                      version string.
235  * \param ProducerLen   The length of the C string passed to \c Producer.
236  * \param isOptimized   A boolean flag which indicates whether optimization
237  *                      is enabled or not.
238  * \param Flags         This string lists command line options. This
239  *                      string is directly embedded in debug info
240  *                      output which may be used by a tool
241  *                      analyzing generated debugging information.
242  * \param FlagsLen      The length of the C string passed to \c Flags.
243  * \param RuntimeVer    This indicates runtime version for languages like
244  *                      Objective-C.
245  * \param SplitName     The name of the file that we'll split debug info
246  *                      out into.
247  * \param SplitNameLen  The length of the C string passed to \c SplitName.
248  * \param Kind          The kind of debug information to generate.
249  * \param DWOId         The DWOId if this is a split skeleton compile unit.
250  * \param SplitDebugInlining    Whether to emit inline debug info.
251  * \param DebugInfoForProfiling Whether to emit extra debug info for
252  *                              profile collection.
253  * \param SysRoot         The Clang system root (value of -isysroot).
254  * \param SysRootLen      The length of the C string passed to \c SysRoot.
255  * \param SDK           The SDK. On Darwin, the last component of the sysroot.
256  * \param SDKLen        The length of the C string passed to \c SDK.
257  */
258 LLVMMetadataRef LLVMDIBuilderCreateCompileUnit(
259     LLVMDIBuilderRef Builder, LLVMDWARFSourceLanguage Lang,
260     LLVMMetadataRef FileRef, const char *Producer, size_t ProducerLen,
261     LLVMBool isOptimized, const char *Flags, size_t FlagsLen,
262     unsigned RuntimeVer, const char *SplitName, size_t SplitNameLen,
263     LLVMDWARFEmissionKind Kind, unsigned DWOId, LLVMBool SplitDebugInlining,
264     LLVMBool DebugInfoForProfiling, const char *SysRoot, size_t SysRootLen,
265     const char *SDK, size_t SDKLen);
266 
267 /**
268  * Create a file descriptor to hold debugging information for a file.
269  * \param Builder      The \c DIBuilder.
270  * \param Filename     File name.
271  * \param FilenameLen  The length of the C string passed to \c Filename.
272  * \param Directory    Directory.
273  * \param DirectoryLen The length of the C string passed to \c Directory.
274  */
275 LLVMMetadataRef
276 LLVMDIBuilderCreateFile(LLVMDIBuilderRef Builder, const char *Filename,
277                         size_t FilenameLen, const char *Directory,
278                         size_t DirectoryLen);
279 
280 /**
281  * Creates a new descriptor for a module with the specified parent scope.
282  * \param Builder         The \c DIBuilder.
283  * \param ParentScope     The parent scope containing this module declaration.
284  * \param Name            Module name.
285  * \param NameLen         The length of the C string passed to \c Name.
286  * \param ConfigMacros    A space-separated shell-quoted list of -D macro
287                           definitions as they would appear on a command line.
288  * \param ConfigMacrosLen The length of the C string passed to \c ConfigMacros.
289  * \param IncludePath     The path to the module map file.
290  * \param IncludePathLen  The length of the C string passed to \c IncludePath.
291  * \param APINotesFile    The path to an API notes file for the module.
292  * \param APINotesFileLen The length of the C string passed to \c APINotestFile.
293  */
294 LLVMMetadataRef
295 LLVMDIBuilderCreateModule(LLVMDIBuilderRef Builder, LLVMMetadataRef ParentScope,
296                           const char *Name, size_t NameLen,
297                           const char *ConfigMacros, size_t ConfigMacrosLen,
298                           const char *IncludePath, size_t IncludePathLen,
299                           const char *APINotesFile, size_t APINotesFileLen);
300 
301 /**
302  * Creates a new descriptor for a namespace with the specified parent scope.
303  * \param Builder          The \c DIBuilder.
304  * \param ParentScope      The parent scope containing this module declaration.
305  * \param Name             NameSpace name.
306  * \param NameLen          The length of the C string passed to \c Name.
307  * \param ExportSymbols    Whether or not the namespace exports symbols, e.g.
308  *                         this is true of C++ inline namespaces.
309  */
310 LLVMMetadataRef
311 LLVMDIBuilderCreateNameSpace(LLVMDIBuilderRef Builder,
312                              LLVMMetadataRef ParentScope,
313                              const char *Name, size_t NameLen,
314                              LLVMBool ExportSymbols);
315 
316 /**
317  * Create a new descriptor for the specified subprogram.
318  * \param Builder         The \c DIBuilder.
319  * \param Scope           Function scope.
320  * \param Name            Function name.
321  * \param NameLen         Length of enumeration name.
322  * \param LinkageName     Mangled function name.
323  * \param LinkageNameLen  Length of linkage name.
324  * \param File            File where this variable is defined.
325  * \param LineNo          Line number.
326  * \param Ty              Function type.
327  * \param IsLocalToUnit   True if this function is not externally visible.
328  * \param IsDefinition    True if this is a function definition.
329  * \param ScopeLine       Set to the beginning of the scope this starts
330  * \param Flags           E.g.: \c LLVMDIFlagLValueReference. These flags are
331  *                        used to emit dwarf attributes.
332  * \param IsOptimized     True if optimization is ON.
333  */
334 LLVMMetadataRef LLVMDIBuilderCreateFunction(
335     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
336     size_t NameLen, const char *LinkageName, size_t LinkageNameLen,
337     LLVMMetadataRef File, unsigned LineNo, LLVMMetadataRef Ty,
338     LLVMBool IsLocalToUnit, LLVMBool IsDefinition,
339     unsigned ScopeLine, LLVMDIFlags Flags, LLVMBool IsOptimized);
340 
341 /**
342  * Create a descriptor for a lexical block with the specified parent context.
343  * \param Builder      The \c DIBuilder.
344  * \param Scope        Parent lexical block.
345  * \param File         Source file.
346  * \param Line         The line in the source file.
347  * \param Column       The column in the source file.
348  */
349 LLVMMetadataRef LLVMDIBuilderCreateLexicalBlock(
350     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope,
351     LLVMMetadataRef File, unsigned Line, unsigned Column);
352 
353 /**
354  * Create a descriptor for a lexical block with a new file attached.
355  * \param Builder        The \c DIBuilder.
356  * \param Scope          Lexical block.
357  * \param File           Source file.
358  * \param Discriminator  DWARF path discriminator value.
359  */
360 LLVMMetadataRef
361 LLVMDIBuilderCreateLexicalBlockFile(LLVMDIBuilderRef Builder,
362                                     LLVMMetadataRef Scope,
363                                     LLVMMetadataRef File,
364                                     unsigned Discriminator);
365 
366 /**
367  * Create a descriptor for an imported namespace. Suitable for e.g. C++
368  * using declarations.
369  * \param Builder    The \c DIBuilder.
370  * \param Scope      The scope this module is imported into
371  * \param File       File where the declaration is located.
372  * \param Line       Line number of the declaration.
373  */
374 LLVMMetadataRef
375 LLVMDIBuilderCreateImportedModuleFromNamespace(LLVMDIBuilderRef Builder,
376                                                LLVMMetadataRef Scope,
377                                                LLVMMetadataRef NS,
378                                                LLVMMetadataRef File,
379                                                unsigned Line);
380 
381 /**
382  * Create a descriptor for an imported module that aliases another
383  * imported entity descriptor.
384  * \param Builder        The \c DIBuilder.
385  * \param Scope          The scope this module is imported into
386  * \param ImportedEntity Previous imported entity to alias.
387  * \param File           File where the declaration is located.
388  * \param Line           Line number of the declaration.
389  */
390 LLVMMetadataRef
391 LLVMDIBuilderCreateImportedModuleFromAlias(LLVMDIBuilderRef Builder,
392                                            LLVMMetadataRef Scope,
393                                            LLVMMetadataRef ImportedEntity,
394                                            LLVMMetadataRef File,
395                                            unsigned Line);
396 
397 /**
398  * Create a descriptor for an imported module.
399  * \param Builder    The \c DIBuilder.
400  * \param Scope      The scope this module is imported into
401  * \param M          The module being imported here
402  * \param File       File where the declaration is located.
403  * \param Line       Line number of the declaration.
404  */
405 LLVMMetadataRef
406 LLVMDIBuilderCreateImportedModuleFromModule(LLVMDIBuilderRef Builder,
407                                             LLVMMetadataRef Scope,
408                                             LLVMMetadataRef M,
409                                             LLVMMetadataRef File,
410                                             unsigned Line);
411 
412 /**
413  * Create a descriptor for an imported function, type, or variable.  Suitable
414  * for e.g. FORTRAN-style USE declarations.
415  * \param Builder    The DIBuilder.
416  * \param Scope      The scope this module is imported into.
417  * \param Decl       The declaration (or definition) of a function, type,
418                      or variable.
419  * \param File       File where the declaration is located.
420  * \param Line       Line number of the declaration.
421  * \param Name       A name that uniquely identifies this imported declaration.
422  * \param NameLen    The length of the C string passed to \c Name.
423  */
424 LLVMMetadataRef
425 LLVMDIBuilderCreateImportedDeclaration(LLVMDIBuilderRef Builder,
426                                        LLVMMetadataRef Scope,
427                                        LLVMMetadataRef Decl,
428                                        LLVMMetadataRef File,
429                                        unsigned Line,
430                                        const char *Name, size_t NameLen);
431 
432 /**
433  * Creates a new DebugLocation that describes a source location.
434  * \param Line The line in the source file.
435  * \param Column The column in the source file.
436  * \param Scope The scope in which the location resides.
437  * \param InlinedAt The scope where this location was inlined, if at all.
438  *                  (optional).
439  * \note If the item to which this location is attached cannot be
440  *       attributed to a source line, pass 0 for the line and column.
441  */
442 LLVMMetadataRef
443 LLVMDIBuilderCreateDebugLocation(LLVMContextRef Ctx, unsigned Line,
444                                  unsigned Column, LLVMMetadataRef Scope,
445                                  LLVMMetadataRef InlinedAt);
446 
447 /**
448  * Get the line number of this debug location.
449  * \param Location     The debug location.
450  *
451  * @see DILocation::getLine()
452  */
453 unsigned LLVMDILocationGetLine(LLVMMetadataRef Location);
454 
455 /**
456  * Get the column number of this debug location.
457  * \param Location     The debug location.
458  *
459  * @see DILocation::getColumn()
460  */
461 unsigned LLVMDILocationGetColumn(LLVMMetadataRef Location);
462 
463 /**
464  * Get the local scope associated with this debug location.
465  * \param Location     The debug location.
466  *
467  * @see DILocation::getScope()
468  */
469 LLVMMetadataRef LLVMDILocationGetScope(LLVMMetadataRef Location);
470 
471 /**
472  * Get the "inline at" location associated with this debug location.
473  * \param Location     The debug location.
474  *
475  * @see DILocation::getInlinedAt()
476  */
477 LLVMMetadataRef LLVMDILocationGetInlinedAt(LLVMMetadataRef Location);
478 
479 /**
480  * Get the metadata of the file associated with a given scope.
481  * \param Scope     The scope object.
482  *
483  * @see DIScope::getFile()
484  */
485 LLVMMetadataRef LLVMDIScopeGetFile(LLVMMetadataRef Scope);
486 
487 /**
488  * Get the directory of a given file.
489  * \param File     The file object.
490  * \param Len      The length of the returned string.
491  *
492  * @see DIFile::getDirectory()
493  */
494 const char *LLVMDIFileGetDirectory(LLVMMetadataRef File, unsigned *Len);
495 
496 /**
497  * Get the name of a given file.
498  * \param File     The file object.
499  * \param Len      The length of the returned string.
500  *
501  * @see DIFile::getFilename()
502  */
503 const char *LLVMDIFileGetFilename(LLVMMetadataRef File, unsigned *Len);
504 
505 /**
506  * Get the source of a given file.
507  * \param File     The file object.
508  * \param Len      The length of the returned string.
509  *
510  * @see DIFile::getSource()
511  */
512 const char *LLVMDIFileGetSource(LLVMMetadataRef File, unsigned *Len);
513 
514 /**
515  * Create a type array.
516  * \param Builder        The DIBuilder.
517  * \param Data           The type elements.
518  * \param NumElements    Number of type elements.
519  */
520 LLVMMetadataRef LLVMDIBuilderGetOrCreateTypeArray(LLVMDIBuilderRef Builder,
521                                                   LLVMMetadataRef *Data,
522                                                   size_t NumElements);
523 
524 /**
525  * Create subroutine type.
526  * \param Builder        The DIBuilder.
527  * \param File            The file in which the subroutine resides.
528  * \param ParameterTypes  An array of subroutine parameter types. This
529  *                        includes return type at 0th index.
530  * \param NumParameterTypes The number of parameter types in \c ParameterTypes
531  * \param Flags           E.g.: \c LLVMDIFlagLValueReference.
532  *                        These flags are used to emit dwarf attributes.
533  */
534 LLVMMetadataRef
535 LLVMDIBuilderCreateSubroutineType(LLVMDIBuilderRef Builder,
536                                   LLVMMetadataRef File,
537                                   LLVMMetadataRef *ParameterTypes,
538                                   unsigned NumParameterTypes,
539                                   LLVMDIFlags Flags);
540 
541 /**
542  * Create debugging information entry for a macro.
543  * @param Builder         The DIBuilder.
544  * @param ParentMacroFile Macro parent (could be NULL).
545  * @param Line            Source line number where the macro is defined.
546  * @param RecordType      DW_MACINFO_define or DW_MACINFO_undef.
547  * @param Name            Macro name.
548  * @param NameLen         Macro name length.
549  * @param Value           Macro value.
550  * @param ValueLen        Macro value length.
551  */
552 LLVMMetadataRef LLVMDIBuilderCreateMacro(LLVMDIBuilderRef Builder,
553                                          LLVMMetadataRef ParentMacroFile,
554                                          unsigned Line,
555                                          LLVMDWARFMacinfoRecordType RecordType,
556                                          const char *Name, size_t NameLen,
557                                          const char *Value, size_t ValueLen);
558 
559 /**
560  * Create debugging information temporary entry for a macro file.
561  * List of macro node direct children will be calculated by DIBuilder,
562  * using the \p ParentMacroFile relationship.
563  * @param Builder         The DIBuilder.
564  * @param ParentMacroFile Macro parent (could be NULL).
565  * @param Line            Source line number where the macro file is included.
566  * @param File            File descriptor containing the name of the macro file.
567  */
568 LLVMMetadataRef
569 LLVMDIBuilderCreateTempMacroFile(LLVMDIBuilderRef Builder,
570                                  LLVMMetadataRef ParentMacroFile, unsigned Line,
571                                  LLVMMetadataRef File);
572 
573 /**
574  * Create debugging information entry for an enumerator.
575  * @param Builder        The DIBuilder.
576  * @param Name           Enumerator name.
577  * @param NameLen        Length of enumerator name.
578  * @param Value          Enumerator value.
579  * @param IsUnsigned     True if the value is unsigned.
580  */
581 LLVMMetadataRef LLVMDIBuilderCreateEnumerator(LLVMDIBuilderRef Builder,
582                                               const char *Name, size_t NameLen,
583                                               int64_t Value,
584                                               LLVMBool IsUnsigned);
585 
586 /**
587  * Create debugging information entry for an enumeration.
588  * \param Builder        The DIBuilder.
589  * \param Scope          Scope in which this enumeration is defined.
590  * \param Name           Enumeration name.
591  * \param NameLen        Length of enumeration name.
592  * \param File           File where this member is defined.
593  * \param LineNumber     Line number.
594  * \param SizeInBits     Member size.
595  * \param AlignInBits    Member alignment.
596  * \param Elements       Enumeration elements.
597  * \param NumElements    Number of enumeration elements.
598  * \param ClassTy        Underlying type of a C++11/ObjC fixed enum.
599  */
600 LLVMMetadataRef LLVMDIBuilderCreateEnumerationType(
601     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
602     size_t NameLen, LLVMMetadataRef File, unsigned LineNumber,
603     uint64_t SizeInBits, uint32_t AlignInBits, LLVMMetadataRef *Elements,
604     unsigned NumElements, LLVMMetadataRef ClassTy);
605 
606 /**
607  * Create debugging information entry for a union.
608  * \param Builder      The DIBuilder.
609  * \param Scope        Scope in which this union is defined.
610  * \param Name         Union name.
611  * \param NameLen      Length of union name.
612  * \param File         File where this member is defined.
613  * \param LineNumber   Line number.
614  * \param SizeInBits   Member size.
615  * \param AlignInBits  Member alignment.
616  * \param Flags        Flags to encode member attribute, e.g. private
617  * \param Elements     Union elements.
618  * \param NumElements  Number of union elements.
619  * \param RunTimeLang  Optional parameter, Objective-C runtime version.
620  * \param UniqueId     A unique identifier for the union.
621  * \param UniqueIdLen  Length of unique identifier.
622  */
623 LLVMMetadataRef LLVMDIBuilderCreateUnionType(
624     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
625     size_t NameLen, LLVMMetadataRef File, unsigned LineNumber,
626     uint64_t SizeInBits, uint32_t AlignInBits, LLVMDIFlags Flags,
627     LLVMMetadataRef *Elements, unsigned NumElements, unsigned RunTimeLang,
628     const char *UniqueId, size_t UniqueIdLen);
629 
630 
631 /**
632  * Create debugging information entry for an array.
633  * \param Builder      The DIBuilder.
634  * \param Size         Array size.
635  * \param AlignInBits  Alignment.
636  * \param Ty           Element type.
637  * \param Subscripts   Subscripts.
638  * \param NumSubscripts Number of subscripts.
639  */
640 LLVMMetadataRef
641 LLVMDIBuilderCreateArrayType(LLVMDIBuilderRef Builder, uint64_t Size,
642                              uint32_t AlignInBits, LLVMMetadataRef Ty,
643                              LLVMMetadataRef *Subscripts,
644                              unsigned NumSubscripts);
645 
646 /**
647  * Create debugging information entry for a vector type.
648  * \param Builder      The DIBuilder.
649  * \param Size         Vector size.
650  * \param AlignInBits  Alignment.
651  * \param Ty           Element type.
652  * \param Subscripts   Subscripts.
653  * \param NumSubscripts Number of subscripts.
654  */
655 LLVMMetadataRef
656 LLVMDIBuilderCreateVectorType(LLVMDIBuilderRef Builder, uint64_t Size,
657                               uint32_t AlignInBits, LLVMMetadataRef Ty,
658                               LLVMMetadataRef *Subscripts,
659                               unsigned NumSubscripts);
660 
661 /**
662  * Create a DWARF unspecified type.
663  * \param Builder   The DIBuilder.
664  * \param Name      The unspecified type's name.
665  * \param NameLen   Length of type name.
666  */
667 LLVMMetadataRef
668 LLVMDIBuilderCreateUnspecifiedType(LLVMDIBuilderRef Builder, const char *Name,
669                                    size_t NameLen);
670 
671 /**
672  * Create debugging information entry for a basic
673  * type.
674  * \param Builder     The DIBuilder.
675  * \param Name        Type name.
676  * \param NameLen     Length of type name.
677  * \param SizeInBits  Size of the type.
678  * \param Encoding    DWARF encoding code, e.g. \c LLVMDWARFTypeEncoding_float.
679  * \param Flags       Flags to encode optional attribute like endianity
680  */
681 LLVMMetadataRef
682 LLVMDIBuilderCreateBasicType(LLVMDIBuilderRef Builder, const char *Name,
683                              size_t NameLen, uint64_t SizeInBits,
684                              LLVMDWARFTypeEncoding Encoding,
685                              LLVMDIFlags Flags);
686 
687 /**
688  * Create debugging information entry for a pointer.
689  * \param Builder     The DIBuilder.
690  * \param PointeeTy         Type pointed by this pointer.
691  * \param SizeInBits        Size.
692  * \param AlignInBits       Alignment. (optional, pass 0 to ignore)
693  * \param AddressSpace      DWARF address space. (optional, pass 0 to ignore)
694  * \param Name              Pointer type name. (optional)
695  * \param NameLen           Length of pointer type name. (optional)
696  */
697 LLVMMetadataRef LLVMDIBuilderCreatePointerType(
698     LLVMDIBuilderRef Builder, LLVMMetadataRef PointeeTy,
699     uint64_t SizeInBits, uint32_t AlignInBits, unsigned AddressSpace,
700     const char *Name, size_t NameLen);
701 
702 /**
703  * Create debugging information entry for a struct.
704  * \param Builder     The DIBuilder.
705  * \param Scope        Scope in which this struct is defined.
706  * \param Name         Struct name.
707  * \param NameLen      Struct name length.
708  * \param File         File where this member is defined.
709  * \param LineNumber   Line number.
710  * \param SizeInBits   Member size.
711  * \param AlignInBits  Member alignment.
712  * \param Flags        Flags to encode member attribute, e.g. private
713  * \param Elements     Struct elements.
714  * \param NumElements  Number of struct elements.
715  * \param RunTimeLang  Optional parameter, Objective-C runtime version.
716  * \param VTableHolder The object containing the vtable for the struct.
717  * \param UniqueId     A unique identifier for the struct.
718  * \param UniqueIdLen  Length of the unique identifier for the struct.
719  */
720 LLVMMetadataRef LLVMDIBuilderCreateStructType(
721     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
722     size_t NameLen, LLVMMetadataRef File, unsigned LineNumber,
723     uint64_t SizeInBits, uint32_t AlignInBits, LLVMDIFlags Flags,
724     LLVMMetadataRef DerivedFrom, LLVMMetadataRef *Elements,
725     unsigned NumElements, unsigned RunTimeLang, LLVMMetadataRef VTableHolder,
726     const char *UniqueId, size_t UniqueIdLen);
727 
728 /**
729  * Create debugging information entry for a member.
730  * \param Builder      The DIBuilder.
731  * \param Scope        Member scope.
732  * \param Name         Member name.
733  * \param NameLen      Length of member name.
734  * \param File         File where this member is defined.
735  * \param LineNo       Line number.
736  * \param SizeInBits   Member size.
737  * \param AlignInBits  Member alignment.
738  * \param OffsetInBits Member offset.
739  * \param Flags        Flags to encode member attribute, e.g. private
740  * \param Ty           Parent type.
741  */
742 LLVMMetadataRef LLVMDIBuilderCreateMemberType(
743     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
744     size_t NameLen, LLVMMetadataRef File, unsigned LineNo,
745     uint64_t SizeInBits, uint32_t AlignInBits, uint64_t OffsetInBits,
746     LLVMDIFlags Flags, LLVMMetadataRef Ty);
747 
748 /**
749  * Create debugging information entry for a
750  * C++ static data member.
751  * \param Builder      The DIBuilder.
752  * \param Scope        Member scope.
753  * \param Name         Member name.
754  * \param NameLen      Length of member name.
755  * \param File         File where this member is declared.
756  * \param LineNumber   Line number.
757  * \param Type         Type of the static member.
758  * \param Flags        Flags to encode member attribute, e.g. private.
759  * \param ConstantVal  Const initializer of the member.
760  * \param AlignInBits  Member alignment.
761  */
762 LLVMMetadataRef
763 LLVMDIBuilderCreateStaticMemberType(
764     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
765     size_t NameLen, LLVMMetadataRef File, unsigned LineNumber,
766     LLVMMetadataRef Type, LLVMDIFlags Flags, LLVMValueRef ConstantVal,
767     uint32_t AlignInBits);
768 
769 /**
770  * Create debugging information entry for a pointer to member.
771  * \param Builder      The DIBuilder.
772  * \param PointeeType  Type pointed to by this pointer.
773  * \param ClassType    Type for which this pointer points to members of.
774  * \param SizeInBits   Size.
775  * \param AlignInBits  Alignment.
776  * \param Flags        Flags.
777  */
778 LLVMMetadataRef
779 LLVMDIBuilderCreateMemberPointerType(LLVMDIBuilderRef Builder,
780                                      LLVMMetadataRef PointeeType,
781                                      LLVMMetadataRef ClassType,
782                                      uint64_t SizeInBits,
783                                      uint32_t AlignInBits,
784                                      LLVMDIFlags Flags);
785 /**
786  * Create debugging information entry for Objective-C instance variable.
787  * \param Builder      The DIBuilder.
788  * \param Name         Member name.
789  * \param NameLen      The length of the C string passed to \c Name.
790  * \param File         File where this member is defined.
791  * \param LineNo       Line number.
792  * \param SizeInBits   Member size.
793  * \param AlignInBits  Member alignment.
794  * \param OffsetInBits Member offset.
795  * \param Flags        Flags to encode member attribute, e.g. private
796  * \param Ty           Parent type.
797  * \param PropertyNode Property associated with this ivar.
798  */
799 LLVMMetadataRef
800 LLVMDIBuilderCreateObjCIVar(LLVMDIBuilderRef Builder,
801                             const char *Name, size_t NameLen,
802                             LLVMMetadataRef File, unsigned LineNo,
803                             uint64_t SizeInBits, uint32_t AlignInBits,
804                             uint64_t OffsetInBits, LLVMDIFlags Flags,
805                             LLVMMetadataRef Ty, LLVMMetadataRef PropertyNode);
806 
807 /**
808  * Create debugging information entry for Objective-C property.
809  * \param Builder            The DIBuilder.
810  * \param Name               Property name.
811  * \param NameLen            The length of the C string passed to \c Name.
812  * \param File               File where this property is defined.
813  * \param LineNo             Line number.
814  * \param GetterName         Name of the Objective C property getter selector.
815  * \param GetterNameLen      The length of the C string passed to \c GetterName.
816  * \param SetterName         Name of the Objective C property setter selector.
817  * \param SetterNameLen      The length of the C string passed to \c SetterName.
818  * \param PropertyAttributes Objective C property attributes.
819  * \param Ty                 Type.
820  */
821 LLVMMetadataRef
822 LLVMDIBuilderCreateObjCProperty(LLVMDIBuilderRef Builder,
823                                 const char *Name, size_t NameLen,
824                                 LLVMMetadataRef File, unsigned LineNo,
825                                 const char *GetterName, size_t GetterNameLen,
826                                 const char *SetterName, size_t SetterNameLen,
827                                 unsigned PropertyAttributes,
828                                 LLVMMetadataRef Ty);
829 
830 /**
831  * Create a uniqued DIType* clone with FlagObjectPointer and FlagArtificial set.
832  * \param Builder   The DIBuilder.
833  * \param Type      The underlying type to which this pointer points.
834  */
835 LLVMMetadataRef
836 LLVMDIBuilderCreateObjectPointerType(LLVMDIBuilderRef Builder,
837                                      LLVMMetadataRef Type);
838 
839 /**
840  * Create debugging information entry for a qualified
841  * type, e.g. 'const int'.
842  * \param Builder     The DIBuilder.
843  * \param Tag         Tag identifying type,
844  *                    e.g. LLVMDWARFTypeQualifier_volatile_type
845  * \param Type        Base Type.
846  */
847 LLVMMetadataRef
848 LLVMDIBuilderCreateQualifiedType(LLVMDIBuilderRef Builder, unsigned Tag,
849                                  LLVMMetadataRef Type);
850 
851 /**
852  * Create debugging information entry for a c++
853  * style reference or rvalue reference type.
854  * \param Builder   The DIBuilder.
855  * \param Tag       Tag identifying type,
856  * \param Type      Base Type.
857  */
858 LLVMMetadataRef
859 LLVMDIBuilderCreateReferenceType(LLVMDIBuilderRef Builder, unsigned Tag,
860                                  LLVMMetadataRef Type);
861 
862 /**
863  * Create C++11 nullptr type.
864  * \param Builder   The DIBuilder.
865  */
866 LLVMMetadataRef
867 LLVMDIBuilderCreateNullPtrType(LLVMDIBuilderRef Builder);
868 
869 /**
870  * Create debugging information entry for a typedef.
871  * \param Builder    The DIBuilder.
872  * \param Type       Original type.
873  * \param Name       Typedef name.
874  * \param File       File where this type is defined.
875  * \param LineNo     Line number.
876  * \param Scope      The surrounding context for the typedef.
877  */
878 LLVMMetadataRef
879 LLVMDIBuilderCreateTypedef(LLVMDIBuilderRef Builder, LLVMMetadataRef Type,
880                            const char *Name, size_t NameLen,
881                            LLVMMetadataRef File, unsigned LineNo,
882                            LLVMMetadataRef Scope, uint32_t AlignInBits);
883 
884 /**
885  * Create debugging information entry to establish inheritance relationship
886  * between two types.
887  * \param Builder       The DIBuilder.
888  * \param Ty            Original type.
889  * \param BaseTy        Base type. Ty is inherits from base.
890  * \param BaseOffset    Base offset.
891  * \param VBPtrOffset  Virtual base pointer offset.
892  * \param Flags         Flags to describe inheritance attribute, e.g. private
893  */
894 LLVMMetadataRef
895 LLVMDIBuilderCreateInheritance(LLVMDIBuilderRef Builder,
896                                LLVMMetadataRef Ty, LLVMMetadataRef BaseTy,
897                                uint64_t BaseOffset, uint32_t VBPtrOffset,
898                                LLVMDIFlags Flags);
899 
900 /**
901  * Create a permanent forward-declared type.
902  * \param Builder             The DIBuilder.
903  * \param Tag                 A unique tag for this type.
904  * \param Name                Type name.
905  * \param NameLen             Length of type name.
906  * \param Scope               Type scope.
907  * \param File                File where this type is defined.
908  * \param Line                Line number where this type is defined.
909  * \param RuntimeLang         Indicates runtime version for languages like
910  *                            Objective-C.
911  * \param SizeInBits          Member size.
912  * \param AlignInBits         Member alignment.
913  * \param UniqueIdentifier    A unique identifier for the type.
914  * \param UniqueIdentifierLen Length of the unique identifier.
915  */
916 LLVMMetadataRef LLVMDIBuilderCreateForwardDecl(
917     LLVMDIBuilderRef Builder, unsigned Tag, const char *Name,
918     size_t NameLen, LLVMMetadataRef Scope, LLVMMetadataRef File, unsigned Line,
919     unsigned RuntimeLang, uint64_t SizeInBits, uint32_t AlignInBits,
920     const char *UniqueIdentifier, size_t UniqueIdentifierLen);
921 
922 /**
923  * Create a temporary forward-declared type.
924  * \param Builder             The DIBuilder.
925  * \param Tag                 A unique tag for this type.
926  * \param Name                Type name.
927  * \param NameLen             Length of type name.
928  * \param Scope               Type scope.
929  * \param File                File where this type is defined.
930  * \param Line                Line number where this type is defined.
931  * \param RuntimeLang         Indicates runtime version for languages like
932  *                            Objective-C.
933  * \param SizeInBits          Member size.
934  * \param AlignInBits         Member alignment.
935  * \param Flags               Flags.
936  * \param UniqueIdentifier    A unique identifier for the type.
937  * \param UniqueIdentifierLen Length of the unique identifier.
938  */
939 LLVMMetadataRef
940 LLVMDIBuilderCreateReplaceableCompositeType(
941     LLVMDIBuilderRef Builder, unsigned Tag, const char *Name,
942     size_t NameLen, LLVMMetadataRef Scope, LLVMMetadataRef File, unsigned Line,
943     unsigned RuntimeLang, uint64_t SizeInBits, uint32_t AlignInBits,
944     LLVMDIFlags Flags, const char *UniqueIdentifier,
945     size_t UniqueIdentifierLen);
946 
947 /**
948  * Create debugging information entry for a bit field member.
949  * \param Builder             The DIBuilder.
950  * \param Scope               Member scope.
951  * \param Name                Member name.
952  * \param NameLen             Length of member name.
953  * \param File                File where this member is defined.
954  * \param LineNumber          Line number.
955  * \param SizeInBits          Member size.
956  * \param OffsetInBits        Member offset.
957  * \param StorageOffsetInBits Member storage offset.
958  * \param Flags               Flags to encode member attribute.
959  * \param Type                Parent type.
960  */
961 LLVMMetadataRef
962 LLVMDIBuilderCreateBitFieldMemberType(LLVMDIBuilderRef Builder,
963                                       LLVMMetadataRef Scope,
964                                       const char *Name, size_t NameLen,
965                                       LLVMMetadataRef File, unsigned LineNumber,
966                                       uint64_t SizeInBits,
967                                       uint64_t OffsetInBits,
968                                       uint64_t StorageOffsetInBits,
969                                       LLVMDIFlags Flags, LLVMMetadataRef Type);
970 
971 /**
972  * Create debugging information entry for a class.
973  * \param Scope               Scope in which this class is defined.
974  * \param Name                Class name.
975  * \param NameLen             The length of the C string passed to \c Name.
976  * \param File                File where this member is defined.
977  * \param LineNumber          Line number.
978  * \param SizeInBits          Member size.
979  * \param AlignInBits         Member alignment.
980  * \param OffsetInBits        Member offset.
981  * \param Flags               Flags to encode member attribute, e.g. private.
982  * \param DerivedFrom         Debug info of the base class of this type.
983  * \param Elements            Class members.
984  * \param NumElements         Number of class elements.
985  * \param VTableHolder        Debug info of the base class that contains vtable
986  *                            for this type. This is used in
987  *                            DW_AT_containing_type. See DWARF documentation
988  *                            for more info.
989  * \param TemplateParamsNode  Template type parameters.
990  * \param UniqueIdentifier    A unique identifier for the type.
991  * \param UniqueIdentifierLen Length of the unique identifier.
992  */
993 LLVMMetadataRef LLVMDIBuilderCreateClassType(LLVMDIBuilderRef Builder,
994     LLVMMetadataRef Scope, const char *Name, size_t NameLen,
995     LLVMMetadataRef File, unsigned LineNumber, uint64_t SizeInBits,
996     uint32_t AlignInBits, uint64_t OffsetInBits, LLVMDIFlags Flags,
997     LLVMMetadataRef DerivedFrom,
998     LLVMMetadataRef *Elements, unsigned NumElements,
999     LLVMMetadataRef VTableHolder, LLVMMetadataRef TemplateParamsNode,
1000     const char *UniqueIdentifier, size_t UniqueIdentifierLen);
1001 
1002 /**
1003  * Create a uniqued DIType* clone with FlagArtificial set.
1004  * \param Builder     The DIBuilder.
1005  * \param Type        The underlying type.
1006  */
1007 LLVMMetadataRef
1008 LLVMDIBuilderCreateArtificialType(LLVMDIBuilderRef Builder,
1009                                   LLVMMetadataRef Type);
1010 
1011 /**
1012  * Get the name of this DIType.
1013  * \param DType     The DIType.
1014  * \param Length    The length of the returned string.
1015  *
1016  * @see DIType::getName()
1017  */
1018 const char *LLVMDITypeGetName(LLVMMetadataRef DType, size_t *Length);
1019 
1020 /**
1021  * Get the size of this DIType in bits.
1022  * \param DType     The DIType.
1023  *
1024  * @see DIType::getSizeInBits()
1025  */
1026 uint64_t LLVMDITypeGetSizeInBits(LLVMMetadataRef DType);
1027 
1028 /**
1029  * Get the offset of this DIType in bits.
1030  * \param DType     The DIType.
1031  *
1032  * @see DIType::getOffsetInBits()
1033  */
1034 uint64_t LLVMDITypeGetOffsetInBits(LLVMMetadataRef DType);
1035 
1036 /**
1037  * Get the alignment of this DIType in bits.
1038  * \param DType     The DIType.
1039  *
1040  * @see DIType::getAlignInBits()
1041  */
1042 uint32_t LLVMDITypeGetAlignInBits(LLVMMetadataRef DType);
1043 
1044 /**
1045  * Get the source line where this DIType is declared.
1046  * \param DType     The DIType.
1047  *
1048  * @see DIType::getLine()
1049  */
1050 unsigned LLVMDITypeGetLine(LLVMMetadataRef DType);
1051 
1052 /**
1053  * Get the flags associated with this DIType.
1054  * \param DType     The DIType.
1055  *
1056  * @see DIType::getFlags()
1057  */
1058 LLVMDIFlags LLVMDITypeGetFlags(LLVMMetadataRef DType);
1059 
1060 /**
1061  * Create a descriptor for a value range.
1062  * \param Builder    The DIBuilder.
1063  * \param LowerBound Lower bound of the subrange, e.g. 0 for C, 1 for Fortran.
1064  * \param Count      Count of elements in the subrange.
1065  */
1066 LLVMMetadataRef LLVMDIBuilderGetOrCreateSubrange(LLVMDIBuilderRef Builder,
1067                                                  int64_t LowerBound,
1068                                                  int64_t Count);
1069 
1070 /**
1071  * Create an array of DI Nodes.
1072  * \param Builder        The DIBuilder.
1073  * \param Data           The DI Node elements.
1074  * \param NumElements    Number of DI Node elements.
1075  */
1076 LLVMMetadataRef LLVMDIBuilderGetOrCreateArray(LLVMDIBuilderRef Builder,
1077                                               LLVMMetadataRef *Data,
1078                                               size_t NumElements);
1079 
1080 /**
1081  * Create a new descriptor for the specified variable which has a complex
1082  * address expression for its address.
1083  * \param Builder     The DIBuilder.
1084  * \param Addr        An array of complex address operations.
1085  * \param Length      Length of the address operation array.
1086  */
1087 LLVMMetadataRef LLVMDIBuilderCreateExpression(LLVMDIBuilderRef Builder,
1088                                               int64_t *Addr, size_t Length);
1089 
1090 /**
1091  * Create a new descriptor for the specified variable that does not have an
1092  * address, but does have a constant value.
1093  * \param Builder     The DIBuilder.
1094  * \param Value       The constant value.
1095  */
1096 LLVMMetadataRef
1097 LLVMDIBuilderCreateConstantValueExpression(LLVMDIBuilderRef Builder,
1098                                            int64_t Value);
1099 
1100 /**
1101  * Create a new descriptor for the specified variable.
1102  * \param Scope       Variable scope.
1103  * \param Name        Name of the variable.
1104  * \param NameLen     The length of the C string passed to \c Name.
1105  * \param Linkage     Mangled  name of the variable.
1106  * \param LinkLen     The length of the C string passed to \c Linkage.
1107  * \param File        File where this variable is defined.
1108  * \param LineNo      Line number.
1109  * \param Ty          Variable Type.
1110  * \param LocalToUnit Boolean flag indicate whether this variable is
1111  *                    externally visible or not.
1112  * \param Expr        The location of the global relative to the attached
1113  *                    GlobalVariable.
1114  * \param Decl        Reference to the corresponding declaration.
1115  *                    variables.
1116  * \param AlignInBits Variable alignment(or 0 if no alignment attr was
1117  *                    specified)
1118  */
1119 LLVMMetadataRef LLVMDIBuilderCreateGlobalVariableExpression(
1120     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
1121     size_t NameLen, const char *Linkage, size_t LinkLen, LLVMMetadataRef File,
1122     unsigned LineNo, LLVMMetadataRef Ty, LLVMBool LocalToUnit,
1123     LLVMMetadataRef Expr, LLVMMetadataRef Decl, uint32_t AlignInBits);
1124 
1125 /**
1126  * Retrieves the \c DIVariable associated with this global variable expression.
1127  * \param GVE    The global variable expression.
1128  *
1129  * @see llvm::DIGlobalVariableExpression::getVariable()
1130  */
1131 LLVMMetadataRef LLVMDIGlobalVariableExpressionGetVariable(LLVMMetadataRef GVE);
1132 
1133 /**
1134  * Retrieves the \c DIExpression associated with this global variable expression.
1135  * \param GVE    The global variable expression.
1136  *
1137  * @see llvm::DIGlobalVariableExpression::getExpression()
1138  */
1139 LLVMMetadataRef LLVMDIGlobalVariableExpressionGetExpression(
1140     LLVMMetadataRef GVE);
1141 
1142 /**
1143  * Get the metadata of the file associated with a given variable.
1144  * \param Var     The variable object.
1145  *
1146  * @see DIVariable::getFile()
1147  */
1148 LLVMMetadataRef LLVMDIVariableGetFile(LLVMMetadataRef Var);
1149 
1150 /**
1151  * Get the metadata of the scope associated with a given variable.
1152  * \param Var     The variable object.
1153  *
1154  * @see DIVariable::getScope()
1155  */
1156 LLVMMetadataRef LLVMDIVariableGetScope(LLVMMetadataRef Var);
1157 
1158 /**
1159  * Get the source line where this \c DIVariable is declared.
1160  * \param Var     The DIVariable.
1161  *
1162  * @see DIVariable::getLine()
1163  */
1164 unsigned LLVMDIVariableGetLine(LLVMMetadataRef Var);
1165 
1166 /**
1167  * Create a new temporary \c MDNode.  Suitable for use in constructing cyclic
1168  * \c MDNode structures. A temporary \c MDNode is not uniqued, may be RAUW'd,
1169  * and must be manually deleted with \c LLVMDisposeTemporaryMDNode.
1170  * \param Ctx            The context in which to construct the temporary node.
1171  * \param Data           The metadata elements.
1172  * \param NumElements    Number of metadata elements.
1173  */
1174 LLVMMetadataRef LLVMTemporaryMDNode(LLVMContextRef Ctx, LLVMMetadataRef *Data,
1175                                     size_t NumElements);
1176 
1177 /**
1178  * Deallocate a temporary node.
1179  *
1180  * Calls \c replaceAllUsesWith(nullptr) before deleting, so any remaining
1181  * references will be reset.
1182  * \param TempNode    The temporary metadata node.
1183  */
1184 void LLVMDisposeTemporaryMDNode(LLVMMetadataRef TempNode);
1185 
1186 /**
1187  * Replace all uses of temporary metadata.
1188  * \param TempTargetMetadata    The temporary metadata node.
1189  * \param Replacement           The replacement metadata node.
1190  */
1191 void LLVMMetadataReplaceAllUsesWith(LLVMMetadataRef TempTargetMetadata,
1192                                     LLVMMetadataRef Replacement);
1193 
1194 /**
1195  * Create a new descriptor for the specified global variable that is temporary
1196  * and meant to be RAUWed.
1197  * \param Scope       Variable scope.
1198  * \param Name        Name of the variable.
1199  * \param NameLen     The length of the C string passed to \c Name.
1200  * \param Linkage     Mangled  name of the variable.
1201  * \param LnkLen      The length of the C string passed to \c Linkage.
1202  * \param File        File where this variable is defined.
1203  * \param LineNo      Line number.
1204  * \param Ty          Variable Type.
1205  * \param LocalToUnit Boolean flag indicate whether this variable is
1206  *                    externally visible or not.
1207  * \param Decl        Reference to the corresponding declaration.
1208  * \param AlignInBits Variable alignment(or 0 if no alignment attr was
1209  *                    specified)
1210  */
1211 LLVMMetadataRef LLVMDIBuilderCreateTempGlobalVariableFwdDecl(
1212     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
1213     size_t NameLen, const char *Linkage, size_t LnkLen, LLVMMetadataRef File,
1214     unsigned LineNo, LLVMMetadataRef Ty, LLVMBool LocalToUnit,
1215     LLVMMetadataRef Decl, uint32_t AlignInBits);
1216 
1217 /**
1218  * Insert a new llvm.dbg.declare intrinsic call before the given instruction.
1219  * \param Builder     The DIBuilder.
1220  * \param Storage     The storage of the variable to declare.
1221  * \param VarInfo     The variable's debug info descriptor.
1222  * \param Expr        A complex location expression for the variable.
1223  * \param DebugLoc    Debug info location.
1224  * \param Instr       Instruction acting as a location for the new intrinsic.
1225  */
1226 LLVMValueRef LLVMDIBuilderInsertDeclareBefore(
1227   LLVMDIBuilderRef Builder, LLVMValueRef Storage, LLVMMetadataRef VarInfo,
1228   LLVMMetadataRef Expr, LLVMMetadataRef DebugLoc, LLVMValueRef Instr);
1229 
1230 /**
1231  * Insert a new llvm.dbg.declare intrinsic call at the end of the given basic
1232  * block. If the basic block has a terminator instruction, the intrinsic is
1233  * inserted before that terminator instruction.
1234  * \param Builder     The DIBuilder.
1235  * \param Storage     The storage of the variable to declare.
1236  * \param VarInfo     The variable's debug info descriptor.
1237  * \param Expr        A complex location expression for the variable.
1238  * \param DebugLoc    Debug info location.
1239  * \param Block       Basic block acting as a location for the new intrinsic.
1240  */
1241 LLVMValueRef LLVMDIBuilderInsertDeclareAtEnd(
1242     LLVMDIBuilderRef Builder, LLVMValueRef Storage, LLVMMetadataRef VarInfo,
1243     LLVMMetadataRef Expr, LLVMMetadataRef DebugLoc, LLVMBasicBlockRef Block);
1244 
1245 /**
1246  * Insert a new llvm.dbg.value intrinsic call before the given instruction.
1247  * \param Builder     The DIBuilder.
1248  * \param Val         The value of the variable.
1249  * \param VarInfo     The variable's debug info descriptor.
1250  * \param Expr        A complex location expression for the variable.
1251  * \param DebugLoc    Debug info location.
1252  * \param Instr       Instruction acting as a location for the new intrinsic.
1253  */
1254 LLVMValueRef LLVMDIBuilderInsertDbgValueBefore(LLVMDIBuilderRef Builder,
1255                                                LLVMValueRef Val,
1256                                                LLVMMetadataRef VarInfo,
1257                                                LLVMMetadataRef Expr,
1258                                                LLVMMetadataRef DebugLoc,
1259                                                LLVMValueRef Instr);
1260 
1261 /**
1262  * Insert a new llvm.dbg.value intrinsic call at the end of the given basic
1263  * block. If the basic block has a terminator instruction, the intrinsic is
1264  * inserted before that terminator instruction.
1265  * \param Builder     The DIBuilder.
1266  * \param Val         The value of the variable.
1267  * \param VarInfo     The variable's debug info descriptor.
1268  * \param Expr        A complex location expression for the variable.
1269  * \param DebugLoc    Debug info location.
1270  * \param Block       Basic block acting as a location for the new intrinsic.
1271  */
1272 LLVMValueRef LLVMDIBuilderInsertDbgValueAtEnd(LLVMDIBuilderRef Builder,
1273                                               LLVMValueRef Val,
1274                                               LLVMMetadataRef VarInfo,
1275                                               LLVMMetadataRef Expr,
1276                                               LLVMMetadataRef DebugLoc,
1277                                               LLVMBasicBlockRef Block);
1278 
1279 /**
1280  * Create a new descriptor for a local auto variable.
1281  * \param Builder         The DIBuilder.
1282  * \param Scope           The local scope the variable is declared in.
1283  * \param Name            Variable name.
1284  * \param NameLen         Length of variable name.
1285  * \param File            File where this variable is defined.
1286  * \param LineNo          Line number.
1287  * \param Ty              Metadata describing the type of the variable.
1288  * \param AlwaysPreserve  If true, this descriptor will survive optimizations.
1289  * \param Flags           Flags.
1290  * \param AlignInBits     Variable alignment.
1291  */
1292 LLVMMetadataRef LLVMDIBuilderCreateAutoVariable(
1293     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
1294     size_t NameLen, LLVMMetadataRef File, unsigned LineNo, LLVMMetadataRef Ty,
1295     LLVMBool AlwaysPreserve, LLVMDIFlags Flags, uint32_t AlignInBits);
1296 
1297 /**
1298  * Create a new descriptor for a function parameter variable.
1299  * \param Builder         The DIBuilder.
1300  * \param Scope           The local scope the variable is declared in.
1301  * \param Name            Variable name.
1302  * \param NameLen         Length of variable name.
1303  * \param ArgNo           Unique argument number for this variable; starts at 1.
1304  * \param File            File where this variable is defined.
1305  * \param LineNo          Line number.
1306  * \param Ty              Metadata describing the type of the variable.
1307  * \param AlwaysPreserve  If true, this descriptor will survive optimizations.
1308  * \param Flags           Flags.
1309  */
1310 LLVMMetadataRef LLVMDIBuilderCreateParameterVariable(
1311     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
1312     size_t NameLen, unsigned ArgNo, LLVMMetadataRef File, unsigned LineNo,
1313     LLVMMetadataRef Ty, LLVMBool AlwaysPreserve, LLVMDIFlags Flags);
1314 
1315 /**
1316  * Get the metadata of the subprogram attached to a function.
1317  *
1318  * @see llvm::Function::getSubprogram()
1319  */
1320 LLVMMetadataRef LLVMGetSubprogram(LLVMValueRef Func);
1321 
1322 /**
1323  * Set the subprogram attached to a function.
1324  *
1325  * @see llvm::Function::setSubprogram()
1326  */
1327 void LLVMSetSubprogram(LLVMValueRef Func, LLVMMetadataRef SP);
1328 
1329 /**
1330  * Get the line associated with a given subprogram.
1331  * \param Subprogram     The subprogram object.
1332  *
1333  * @see DISubprogram::getLine()
1334  */
1335 unsigned LLVMDISubprogramGetLine(LLVMMetadataRef Subprogram);
1336 
1337 /**
1338  * Get the debug location for the given instruction.
1339  *
1340  * @see llvm::Instruction::getDebugLoc()
1341  */
1342 LLVMMetadataRef LLVMInstructionGetDebugLoc(LLVMValueRef Inst);
1343 
1344 /**
1345  * Set the debug location for the given instruction.
1346  *
1347  * To clear the location metadata of the given instruction, pass NULL to \p Loc.
1348  *
1349  * @see llvm::Instruction::setDebugLoc()
1350  */
1351 void LLVMInstructionSetDebugLoc(LLVMValueRef Inst, LLVMMetadataRef Loc);
1352 
1353 /**
1354  * Obtain the enumerated type of a Metadata instance.
1355  *
1356  * @see llvm::Metadata::getMetadataID()
1357  */
1358 LLVMMetadataKind LLVMGetMetadataKind(LLVMMetadataRef Metadata);
1359 
1360 LLVM_C_EXTERN_C_END
1361 
1362 #endif
1363