xref: /openbsd/gnu/llvm/llvm/include/llvm-c/DebugInfo.h (revision d415bd75)
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/ExternC.h"
20 #include "llvm-c/Types.h"
21 
22 LLVM_C_EXTERN_C_BEGIN
23 
24 /**
25  * @defgroup LLVMCCoreDebugInfo Debug Information
26  * @ingroup LLVMCCore
27  *
28  * @{
29  */
30 
31 /**
32  * Debug info flags.
33  */
34 typedef enum {
35   LLVMDIFlagZero = 0,
36   LLVMDIFlagPrivate = 1,
37   LLVMDIFlagProtected = 2,
38   LLVMDIFlagPublic = 3,
39   LLVMDIFlagFwdDecl = 1 << 2,
40   LLVMDIFlagAppleBlock = 1 << 3,
41   LLVMDIFlagReservedBit4 = 1 << 4,
42   LLVMDIFlagVirtual = 1 << 5,
43   LLVMDIFlagArtificial = 1 << 6,
44   LLVMDIFlagExplicit = 1 << 7,
45   LLVMDIFlagPrototyped = 1 << 8,
46   LLVMDIFlagObjcClassComplete = 1 << 9,
47   LLVMDIFlagObjectPointer = 1 << 10,
48   LLVMDIFlagVector = 1 << 11,
49   LLVMDIFlagStaticMember = 1 << 12,
50   LLVMDIFlagLValueReference = 1 << 13,
51   LLVMDIFlagRValueReference = 1 << 14,
52   LLVMDIFlagReserved = 1 << 15,
53   LLVMDIFlagSingleInheritance = 1 << 16,
54   LLVMDIFlagMultipleInheritance = 2 << 16,
55   LLVMDIFlagVirtualInheritance = 3 << 16,
56   LLVMDIFlagIntroducedVirtual = 1 << 18,
57   LLVMDIFlagBitField = 1 << 19,
58   LLVMDIFlagNoReturn = 1 << 20,
59   LLVMDIFlagTypePassByValue = 1 << 22,
60   LLVMDIFlagTypePassByReference = 1 << 23,
61   LLVMDIFlagEnumClass = 1 << 24,
62   LLVMDIFlagFixedEnum = LLVMDIFlagEnumClass, // Deprecated.
63   LLVMDIFlagThunk = 1 << 25,
64   LLVMDIFlagNonTrivial = 1 << 26,
65   LLVMDIFlagBigEndian = 1 << 27,
66   LLVMDIFlagLittleEndian = 1 << 28,
67   LLVMDIFlagIndirectVirtualBase = (1 << 2) | (1 << 5),
68   LLVMDIFlagAccessibility = LLVMDIFlagPrivate | LLVMDIFlagProtected |
69                             LLVMDIFlagPublic,
70   LLVMDIFlagPtrToMemberRep = LLVMDIFlagSingleInheritance |
71                              LLVMDIFlagMultipleInheritance |
72                              LLVMDIFlagVirtualInheritance
73 } LLVMDIFlags;
74 
75 /**
76  * Source languages known by DWARF.
77  */
78 typedef enum {
79   LLVMDWARFSourceLanguageC89,
80   LLVMDWARFSourceLanguageC,
81   LLVMDWARFSourceLanguageAda83,
82   LLVMDWARFSourceLanguageC_plus_plus,
83   LLVMDWARFSourceLanguageCobol74,
84   LLVMDWARFSourceLanguageCobol85,
85   LLVMDWARFSourceLanguageFortran77,
86   LLVMDWARFSourceLanguageFortran90,
87   LLVMDWARFSourceLanguagePascal83,
88   LLVMDWARFSourceLanguageModula2,
89   // New in DWARF v3:
90   LLVMDWARFSourceLanguageJava,
91   LLVMDWARFSourceLanguageC99,
92   LLVMDWARFSourceLanguageAda95,
93   LLVMDWARFSourceLanguageFortran95,
94   LLVMDWARFSourceLanguagePLI,
95   LLVMDWARFSourceLanguageObjC,
96   LLVMDWARFSourceLanguageObjC_plus_plus,
97   LLVMDWARFSourceLanguageUPC,
98   LLVMDWARFSourceLanguageD,
99   // New in DWARF v4:
100   LLVMDWARFSourceLanguagePython,
101   // New in DWARF v5:
102   LLVMDWARFSourceLanguageOpenCL,
103   LLVMDWARFSourceLanguageGo,
104   LLVMDWARFSourceLanguageModula3,
105   LLVMDWARFSourceLanguageHaskell,
106   LLVMDWARFSourceLanguageC_plus_plus_03,
107   LLVMDWARFSourceLanguageC_plus_plus_11,
108   LLVMDWARFSourceLanguageOCaml,
109   LLVMDWARFSourceLanguageRust,
110   LLVMDWARFSourceLanguageC11,
111   LLVMDWARFSourceLanguageSwift,
112   LLVMDWARFSourceLanguageJulia,
113   LLVMDWARFSourceLanguageDylan,
114   LLVMDWARFSourceLanguageC_plus_plus_14,
115   LLVMDWARFSourceLanguageFortran03,
116   LLVMDWARFSourceLanguageFortran08,
117   LLVMDWARFSourceLanguageRenderScript,
118   LLVMDWARFSourceLanguageBLISS,
119   LLVMDWARFSourceLanguageKotlin,
120   LLVMDWARFSourceLanguageZig,
121   LLVMDWARFSourceLanguageCrystal,
122   LLVMDWARFSourceLanguageC_plus_plus_17,
123   LLVMDWARFSourceLanguageC_plus_plus_20,
124   LLVMDWARFSourceLanguageC17,
125   LLVMDWARFSourceLanguageFortran18,
126   LLVMDWARFSourceLanguageAda2005,
127   LLVMDWARFSourceLanguageAda2012,
128   // Vendor extensions:
129   LLVMDWARFSourceLanguageMips_Assembler,
130   LLVMDWARFSourceLanguageGOOGLE_RenderScript,
131   LLVMDWARFSourceLanguageBORLAND_Delphi
132 } LLVMDWARFSourceLanguage;
133 
134 /**
135  * The amount of debug information to emit.
136  */
137 typedef enum {
138     LLVMDWARFEmissionNone = 0,
139     LLVMDWARFEmissionFull,
140     LLVMDWARFEmissionLineTablesOnly
141 } LLVMDWARFEmissionKind;
142 
143 /**
144  * The kind of metadata nodes.
145  */
146 enum {
147   LLVMMDStringMetadataKind,
148   LLVMConstantAsMetadataMetadataKind,
149   LLVMLocalAsMetadataMetadataKind,
150   LLVMDistinctMDOperandPlaceholderMetadataKind,
151   LLVMMDTupleMetadataKind,
152   LLVMDILocationMetadataKind,
153   LLVMDIExpressionMetadataKind,
154   LLVMDIGlobalVariableExpressionMetadataKind,
155   LLVMGenericDINodeMetadataKind,
156   LLVMDISubrangeMetadataKind,
157   LLVMDIEnumeratorMetadataKind,
158   LLVMDIBasicTypeMetadataKind,
159   LLVMDIDerivedTypeMetadataKind,
160   LLVMDICompositeTypeMetadataKind,
161   LLVMDISubroutineTypeMetadataKind,
162   LLVMDIFileMetadataKind,
163   LLVMDICompileUnitMetadataKind,
164   LLVMDISubprogramMetadataKind,
165   LLVMDILexicalBlockMetadataKind,
166   LLVMDILexicalBlockFileMetadataKind,
167   LLVMDINamespaceMetadataKind,
168   LLVMDIModuleMetadataKind,
169   LLVMDITemplateTypeParameterMetadataKind,
170   LLVMDITemplateValueParameterMetadataKind,
171   LLVMDIGlobalVariableMetadataKind,
172   LLVMDILocalVariableMetadataKind,
173   LLVMDILabelMetadataKind,
174   LLVMDIObjCPropertyMetadataKind,
175   LLVMDIImportedEntityMetadataKind,
176   LLVMDIMacroMetadataKind,
177   LLVMDIMacroFileMetadataKind,
178   LLVMDICommonBlockMetadataKind,
179   LLVMDIStringTypeMetadataKind,
180   LLVMDIGenericSubrangeMetadataKind,
181   LLVMDIArgListMetadataKind,
182   LLVMDIAssignIDMetadataKind,
183 };
184 typedef unsigned LLVMMetadataKind;
185 
186 /**
187  * An LLVM DWARF type encoding.
188  */
189 typedef unsigned LLVMDWARFTypeEncoding;
190 
191 /**
192  * Describes the kind of macro declaration used for LLVMDIBuilderCreateMacro.
193  * @see llvm::dwarf::MacinfoRecordType
194  * @note Values are from DW_MACINFO_* constants in the DWARF specification.
195  */
196 typedef enum {
197   LLVMDWARFMacinfoRecordTypeDefine = 0x01,
198   LLVMDWARFMacinfoRecordTypeMacro = 0x02,
199   LLVMDWARFMacinfoRecordTypeStartFile = 0x03,
200   LLVMDWARFMacinfoRecordTypeEndFile = 0x04,
201   LLVMDWARFMacinfoRecordTypeVendorExt = 0xff
202 } LLVMDWARFMacinfoRecordType;
203 
204 /**
205  * The current debug metadata version number.
206  */
207 unsigned LLVMDebugMetadataVersion(void);
208 
209 /**
210  * The version of debug metadata that's present in the provided \c Module.
211  */
212 unsigned LLVMGetModuleDebugMetadataVersion(LLVMModuleRef Module);
213 
214 /**
215  * Strip debug info in the module if it exists.
216  * To do this, we remove all calls to the debugger intrinsics and any named
217  * metadata for debugging. We also remove debug locations for instructions.
218  * Return true if module is modified.
219  */
220 LLVMBool LLVMStripModuleDebugInfo(LLVMModuleRef Module);
221 
222 /**
223  * Construct a builder for a module, and do not allow for unresolved nodes
224  * attached to the module.
225  */
226 LLVMDIBuilderRef LLVMCreateDIBuilderDisallowUnresolved(LLVMModuleRef M);
227 
228 /**
229  * Construct a builder for a module and collect unresolved nodes attached
230  * to the module in order to resolve cycles during a call to
231  * \c LLVMDIBuilderFinalize.
232  */
233 LLVMDIBuilderRef LLVMCreateDIBuilder(LLVMModuleRef M);
234 
235 /**
236  * Deallocates the \c DIBuilder and everything it owns.
237  * @note You must call \c LLVMDIBuilderFinalize before this
238  */
239 void LLVMDisposeDIBuilder(LLVMDIBuilderRef Builder);
240 
241 /**
242  * Construct any deferred debug info descriptors.
243  */
244 void LLVMDIBuilderFinalize(LLVMDIBuilderRef Builder);
245 
246 /**
247  * Finalize a specific subprogram.
248  * No new variables may be added to this subprogram afterwards.
249  */
250 void LLVMDIBuilderFinalizeSubprogram(LLVMDIBuilderRef Builder,
251                                      LLVMMetadataRef Subprogram);
252 
253 /**
254  * A CompileUnit provides an anchor for all debugging
255  * information generated during this instance of compilation.
256  * \param Lang          Source programming language, eg.
257  *                      \c LLVMDWARFSourceLanguageC99
258  * \param FileRef       File info.
259  * \param Producer      Identify the producer of debugging information
260  *                      and code.  Usually this is a compiler
261  *                      version string.
262  * \param ProducerLen   The length of the C string passed to \c Producer.
263  * \param isOptimized   A boolean flag which indicates whether optimization
264  *                      is enabled or not.
265  * \param Flags         This string lists command line options. This
266  *                      string is directly embedded in debug info
267  *                      output which may be used by a tool
268  *                      analyzing generated debugging information.
269  * \param FlagsLen      The length of the C string passed to \c Flags.
270  * \param RuntimeVer    This indicates runtime version for languages like
271  *                      Objective-C.
272  * \param SplitName     The name of the file that we'll split debug info
273  *                      out into.
274  * \param SplitNameLen  The length of the C string passed to \c SplitName.
275  * \param Kind          The kind of debug information to generate.
276  * \param DWOId         The DWOId if this is a split skeleton compile unit.
277  * \param SplitDebugInlining    Whether to emit inline debug info.
278  * \param DebugInfoForProfiling Whether to emit extra debug info for
279  *                              profile collection.
280  * \param SysRoot         The Clang system root (value of -isysroot).
281  * \param SysRootLen      The length of the C string passed to \c SysRoot.
282  * \param SDK           The SDK. On Darwin, the last component of the sysroot.
283  * \param SDKLen        The length of the C string passed to \c SDK.
284  */
285 LLVMMetadataRef LLVMDIBuilderCreateCompileUnit(
286     LLVMDIBuilderRef Builder, LLVMDWARFSourceLanguage Lang,
287     LLVMMetadataRef FileRef, const char *Producer, size_t ProducerLen,
288     LLVMBool isOptimized, const char *Flags, size_t FlagsLen,
289     unsigned RuntimeVer, const char *SplitName, size_t SplitNameLen,
290     LLVMDWARFEmissionKind Kind, unsigned DWOId, LLVMBool SplitDebugInlining,
291     LLVMBool DebugInfoForProfiling, const char *SysRoot, size_t SysRootLen,
292     const char *SDK, size_t SDKLen);
293 
294 /**
295  * Create a file descriptor to hold debugging information for a file.
296  * \param Builder      The \c DIBuilder.
297  * \param Filename     File name.
298  * \param FilenameLen  The length of the C string passed to \c Filename.
299  * \param Directory    Directory.
300  * \param DirectoryLen The length of the C string passed to \c Directory.
301  */
302 LLVMMetadataRef
303 LLVMDIBuilderCreateFile(LLVMDIBuilderRef Builder, const char *Filename,
304                         size_t FilenameLen, const char *Directory,
305                         size_t DirectoryLen);
306 
307 /**
308  * Creates a new descriptor for a module with the specified parent scope.
309  * \param Builder         The \c DIBuilder.
310  * \param ParentScope     The parent scope containing this module declaration.
311  * \param Name            Module name.
312  * \param NameLen         The length of the C string passed to \c Name.
313  * \param ConfigMacros    A space-separated shell-quoted list of -D macro
314                           definitions as they would appear on a command line.
315  * \param ConfigMacrosLen The length of the C string passed to \c ConfigMacros.
316  * \param IncludePath     The path to the module map file.
317  * \param IncludePathLen  The length of the C string passed to \c IncludePath.
318  * \param APINotesFile    The path to an API notes file for the module.
319  * \param APINotesFileLen The length of the C string passed to \c APINotestFile.
320  */
321 LLVMMetadataRef
322 LLVMDIBuilderCreateModule(LLVMDIBuilderRef Builder, LLVMMetadataRef ParentScope,
323                           const char *Name, size_t NameLen,
324                           const char *ConfigMacros, size_t ConfigMacrosLen,
325                           const char *IncludePath, size_t IncludePathLen,
326                           const char *APINotesFile, size_t APINotesFileLen);
327 
328 /**
329  * Creates a new descriptor for a namespace with the specified parent scope.
330  * \param Builder          The \c DIBuilder.
331  * \param ParentScope      The parent scope containing this module declaration.
332  * \param Name             NameSpace name.
333  * \param NameLen          The length of the C string passed to \c Name.
334  * \param ExportSymbols    Whether or not the namespace exports symbols, e.g.
335  *                         this is true of C++ inline namespaces.
336  */
337 LLVMMetadataRef
338 LLVMDIBuilderCreateNameSpace(LLVMDIBuilderRef Builder,
339                              LLVMMetadataRef ParentScope,
340                              const char *Name, size_t NameLen,
341                              LLVMBool ExportSymbols);
342 
343 /**
344  * Create a new descriptor for the specified subprogram.
345  * \param Builder         The \c DIBuilder.
346  * \param Scope           Function scope.
347  * \param Name            Function name.
348  * \param NameLen         Length of enumeration name.
349  * \param LinkageName     Mangled function name.
350  * \param LinkageNameLen  Length of linkage name.
351  * \param File            File where this variable is defined.
352  * \param LineNo          Line number.
353  * \param Ty              Function type.
354  * \param IsLocalToUnit   True if this function is not externally visible.
355  * \param IsDefinition    True if this is a function definition.
356  * \param ScopeLine       Set to the beginning of the scope this starts
357  * \param Flags           E.g.: \c LLVMDIFlagLValueReference. These flags are
358  *                        used to emit dwarf attributes.
359  * \param IsOptimized     True if optimization is ON.
360  */
361 LLVMMetadataRef LLVMDIBuilderCreateFunction(
362     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
363     size_t NameLen, const char *LinkageName, size_t LinkageNameLen,
364     LLVMMetadataRef File, unsigned LineNo, LLVMMetadataRef Ty,
365     LLVMBool IsLocalToUnit, LLVMBool IsDefinition,
366     unsigned ScopeLine, LLVMDIFlags Flags, LLVMBool IsOptimized);
367 
368 /**
369  * Create a descriptor for a lexical block with the specified parent context.
370  * \param Builder      The \c DIBuilder.
371  * \param Scope        Parent lexical block.
372  * \param File         Source file.
373  * \param Line         The line in the source file.
374  * \param Column       The column in the source file.
375  */
376 LLVMMetadataRef LLVMDIBuilderCreateLexicalBlock(
377     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope,
378     LLVMMetadataRef File, unsigned Line, unsigned Column);
379 
380 /**
381  * Create a descriptor for a lexical block with a new file attached.
382  * \param Builder        The \c DIBuilder.
383  * \param Scope          Lexical block.
384  * \param File           Source file.
385  * \param Discriminator  DWARF path discriminator value.
386  */
387 LLVMMetadataRef
388 LLVMDIBuilderCreateLexicalBlockFile(LLVMDIBuilderRef Builder,
389                                     LLVMMetadataRef Scope,
390                                     LLVMMetadataRef File,
391                                     unsigned Discriminator);
392 
393 /**
394  * Create a descriptor for an imported namespace. Suitable for e.g. C++
395  * using declarations.
396  * \param Builder    The \c DIBuilder.
397  * \param Scope      The scope this module is imported into
398  * \param File       File where the declaration is located.
399  * \param Line       Line number of the declaration.
400  */
401 LLVMMetadataRef
402 LLVMDIBuilderCreateImportedModuleFromNamespace(LLVMDIBuilderRef Builder,
403                                                LLVMMetadataRef Scope,
404                                                LLVMMetadataRef NS,
405                                                LLVMMetadataRef File,
406                                                unsigned Line);
407 
408 /**
409  * Create a descriptor for an imported module that aliases another
410  * imported entity descriptor.
411  * \param Builder        The \c DIBuilder.
412  * \param Scope          The scope this module is imported into
413  * \param ImportedEntity Previous imported entity to alias.
414  * \param File           File where the declaration is located.
415  * \param Line           Line number of the declaration.
416  * \param Elements       Renamed elements.
417  * \param NumElements    Number of renamed elements.
418  */
419 LLVMMetadataRef LLVMDIBuilderCreateImportedModuleFromAlias(
420     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope,
421     LLVMMetadataRef ImportedEntity, LLVMMetadataRef File, unsigned Line,
422     LLVMMetadataRef *Elements, unsigned NumElements);
423 
424 /**
425  * Create a descriptor for an imported module.
426  * \param Builder        The \c DIBuilder.
427  * \param Scope          The scope this module is imported into
428  * \param M              The module being imported here
429  * \param File           File where the declaration is located.
430  * \param Line           Line number of the declaration.
431  * \param Elements       Renamed elements.
432  * \param NumElements    Number of renamed elements.
433  */
434 LLVMMetadataRef LLVMDIBuilderCreateImportedModuleFromModule(
435     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, LLVMMetadataRef M,
436     LLVMMetadataRef File, unsigned Line, LLVMMetadataRef *Elements,
437     unsigned NumElements);
438 
439 /**
440  * Create a descriptor for an imported function, type, or variable.  Suitable
441  * for e.g. FORTRAN-style USE declarations.
442  * \param Builder        The DIBuilder.
443  * \param Scope          The scope this module is imported into.
444  * \param Decl           The declaration (or definition) of a function, type,
445                          or variable.
446  * \param File           File where the declaration is located.
447  * \param Line           Line number of the declaration.
448  * \param Name           A name that uniquely identifies this imported
449  declaration.
450  * \param NameLen        The length of the C string passed to \c Name.
451  * \param Elements       Renamed elements.
452  * \param NumElements    Number of renamed elements.
453  */
454 LLVMMetadataRef LLVMDIBuilderCreateImportedDeclaration(
455     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, LLVMMetadataRef Decl,
456     LLVMMetadataRef File, unsigned Line, const char *Name, size_t NameLen,
457     LLVMMetadataRef *Elements, unsigned NumElements);
458 
459 /**
460  * Creates a new DebugLocation that describes a source location.
461  * \param Line The line in the source file.
462  * \param Column The column in the source file.
463  * \param Scope The scope in which the location resides.
464  * \param InlinedAt The scope where this location was inlined, if at all.
465  *                  (optional).
466  * \note If the item to which this location is attached cannot be
467  *       attributed to a source line, pass 0 for the line and column.
468  */
469 LLVMMetadataRef
470 LLVMDIBuilderCreateDebugLocation(LLVMContextRef Ctx, unsigned Line,
471                                  unsigned Column, LLVMMetadataRef Scope,
472                                  LLVMMetadataRef InlinedAt);
473 
474 /**
475  * Get the line number of this debug location.
476  * \param Location     The debug location.
477  *
478  * @see DILocation::getLine()
479  */
480 unsigned LLVMDILocationGetLine(LLVMMetadataRef Location);
481 
482 /**
483  * Get the column number of this debug location.
484  * \param Location     The debug location.
485  *
486  * @see DILocation::getColumn()
487  */
488 unsigned LLVMDILocationGetColumn(LLVMMetadataRef Location);
489 
490 /**
491  * Get the local scope associated with this debug location.
492  * \param Location     The debug location.
493  *
494  * @see DILocation::getScope()
495  */
496 LLVMMetadataRef LLVMDILocationGetScope(LLVMMetadataRef Location);
497 
498 /**
499  * Get the "inline at" location associated with this debug location.
500  * \param Location     The debug location.
501  *
502  * @see DILocation::getInlinedAt()
503  */
504 LLVMMetadataRef LLVMDILocationGetInlinedAt(LLVMMetadataRef Location);
505 
506 /**
507  * Get the metadata of the file associated with a given scope.
508  * \param Scope     The scope object.
509  *
510  * @see DIScope::getFile()
511  */
512 LLVMMetadataRef LLVMDIScopeGetFile(LLVMMetadataRef Scope);
513 
514 /**
515  * Get the directory of a given file.
516  * \param File     The file object.
517  * \param Len      The length of the returned string.
518  *
519  * @see DIFile::getDirectory()
520  */
521 const char *LLVMDIFileGetDirectory(LLVMMetadataRef File, unsigned *Len);
522 
523 /**
524  * Get the name of a given file.
525  * \param File     The file object.
526  * \param Len      The length of the returned string.
527  *
528  * @see DIFile::getFilename()
529  */
530 const char *LLVMDIFileGetFilename(LLVMMetadataRef File, unsigned *Len);
531 
532 /**
533  * Get the source of a given file.
534  * \param File     The file object.
535  * \param Len      The length of the returned string.
536  *
537  * @see DIFile::getSource()
538  */
539 const char *LLVMDIFileGetSource(LLVMMetadataRef File, unsigned *Len);
540 
541 /**
542  * Create a type array.
543  * \param Builder        The DIBuilder.
544  * \param Data           The type elements.
545  * \param NumElements    Number of type elements.
546  */
547 LLVMMetadataRef LLVMDIBuilderGetOrCreateTypeArray(LLVMDIBuilderRef Builder,
548                                                   LLVMMetadataRef *Data,
549                                                   size_t NumElements);
550 
551 /**
552  * Create subroutine type.
553  * \param Builder        The DIBuilder.
554  * \param File            The file in which the subroutine resides.
555  * \param ParameterTypes  An array of subroutine parameter types. This
556  *                        includes return type at 0th index.
557  * \param NumParameterTypes The number of parameter types in \c ParameterTypes
558  * \param Flags           E.g.: \c LLVMDIFlagLValueReference.
559  *                        These flags are used to emit dwarf attributes.
560  */
561 LLVMMetadataRef
562 LLVMDIBuilderCreateSubroutineType(LLVMDIBuilderRef Builder,
563                                   LLVMMetadataRef File,
564                                   LLVMMetadataRef *ParameterTypes,
565                                   unsigned NumParameterTypes,
566                                   LLVMDIFlags Flags);
567 
568 /**
569  * Create debugging information entry for a macro.
570  * @param Builder         The DIBuilder.
571  * @param ParentMacroFile Macro parent (could be NULL).
572  * @param Line            Source line number where the macro is defined.
573  * @param RecordType      DW_MACINFO_define or DW_MACINFO_undef.
574  * @param Name            Macro name.
575  * @param NameLen         Macro name length.
576  * @param Value           Macro value.
577  * @param ValueLen        Macro value length.
578  */
579 LLVMMetadataRef LLVMDIBuilderCreateMacro(LLVMDIBuilderRef Builder,
580                                          LLVMMetadataRef ParentMacroFile,
581                                          unsigned Line,
582                                          LLVMDWARFMacinfoRecordType RecordType,
583                                          const char *Name, size_t NameLen,
584                                          const char *Value, size_t ValueLen);
585 
586 /**
587  * Create debugging information temporary entry for a macro file.
588  * List of macro node direct children will be calculated by DIBuilder,
589  * using the \p ParentMacroFile relationship.
590  * @param Builder         The DIBuilder.
591  * @param ParentMacroFile Macro parent (could be NULL).
592  * @param Line            Source line number where the macro file is included.
593  * @param File            File descriptor containing the name of the macro file.
594  */
595 LLVMMetadataRef
596 LLVMDIBuilderCreateTempMacroFile(LLVMDIBuilderRef Builder,
597                                  LLVMMetadataRef ParentMacroFile, unsigned Line,
598                                  LLVMMetadataRef File);
599 
600 /**
601  * Create debugging information entry for an enumerator.
602  * @param Builder        The DIBuilder.
603  * @param Name           Enumerator name.
604  * @param NameLen        Length of enumerator name.
605  * @param Value          Enumerator value.
606  * @param IsUnsigned     True if the value is unsigned.
607  */
608 LLVMMetadataRef LLVMDIBuilderCreateEnumerator(LLVMDIBuilderRef Builder,
609                                               const char *Name, size_t NameLen,
610                                               int64_t Value,
611                                               LLVMBool IsUnsigned);
612 
613 /**
614  * Create debugging information entry for an enumeration.
615  * \param Builder        The DIBuilder.
616  * \param Scope          Scope in which this enumeration is defined.
617  * \param Name           Enumeration name.
618  * \param NameLen        Length of enumeration name.
619  * \param File           File where this member is defined.
620  * \param LineNumber     Line number.
621  * \param SizeInBits     Member size.
622  * \param AlignInBits    Member alignment.
623  * \param Elements       Enumeration elements.
624  * \param NumElements    Number of enumeration elements.
625  * \param ClassTy        Underlying type of a C++11/ObjC fixed enum.
626  */
627 LLVMMetadataRef LLVMDIBuilderCreateEnumerationType(
628     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
629     size_t NameLen, LLVMMetadataRef File, unsigned LineNumber,
630     uint64_t SizeInBits, uint32_t AlignInBits, LLVMMetadataRef *Elements,
631     unsigned NumElements, LLVMMetadataRef ClassTy);
632 
633 /**
634  * Create debugging information entry for a union.
635  * \param Builder      The DIBuilder.
636  * \param Scope        Scope in which this union is defined.
637  * \param Name         Union name.
638  * \param NameLen      Length of union name.
639  * \param File         File where this member is defined.
640  * \param LineNumber   Line number.
641  * \param SizeInBits   Member size.
642  * \param AlignInBits  Member alignment.
643  * \param Flags        Flags to encode member attribute, e.g. private
644  * \param Elements     Union elements.
645  * \param NumElements  Number of union elements.
646  * \param RunTimeLang  Optional parameter, Objective-C runtime version.
647  * \param UniqueId     A unique identifier for the union.
648  * \param UniqueIdLen  Length of unique identifier.
649  */
650 LLVMMetadataRef LLVMDIBuilderCreateUnionType(
651     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
652     size_t NameLen, LLVMMetadataRef File, unsigned LineNumber,
653     uint64_t SizeInBits, uint32_t AlignInBits, LLVMDIFlags Flags,
654     LLVMMetadataRef *Elements, unsigned NumElements, unsigned RunTimeLang,
655     const char *UniqueId, size_t UniqueIdLen);
656 
657 
658 /**
659  * Create debugging information entry for an array.
660  * \param Builder      The DIBuilder.
661  * \param Size         Array size.
662  * \param AlignInBits  Alignment.
663  * \param Ty           Element type.
664  * \param Subscripts   Subscripts.
665  * \param NumSubscripts Number of subscripts.
666  */
667 LLVMMetadataRef
668 LLVMDIBuilderCreateArrayType(LLVMDIBuilderRef Builder, uint64_t Size,
669                              uint32_t AlignInBits, LLVMMetadataRef Ty,
670                              LLVMMetadataRef *Subscripts,
671                              unsigned NumSubscripts);
672 
673 /**
674  * Create debugging information entry for a vector type.
675  * \param Builder      The DIBuilder.
676  * \param Size         Vector size.
677  * \param AlignInBits  Alignment.
678  * \param Ty           Element type.
679  * \param Subscripts   Subscripts.
680  * \param NumSubscripts Number of subscripts.
681  */
682 LLVMMetadataRef
683 LLVMDIBuilderCreateVectorType(LLVMDIBuilderRef Builder, uint64_t Size,
684                               uint32_t AlignInBits, LLVMMetadataRef Ty,
685                               LLVMMetadataRef *Subscripts,
686                               unsigned NumSubscripts);
687 
688 /**
689  * Create a DWARF unspecified type.
690  * \param Builder   The DIBuilder.
691  * \param Name      The unspecified type's name.
692  * \param NameLen   Length of type name.
693  */
694 LLVMMetadataRef
695 LLVMDIBuilderCreateUnspecifiedType(LLVMDIBuilderRef Builder, const char *Name,
696                                    size_t NameLen);
697 
698 /**
699  * Create debugging information entry for a basic
700  * type.
701  * \param Builder     The DIBuilder.
702  * \param Name        Type name.
703  * \param NameLen     Length of type name.
704  * \param SizeInBits  Size of the type.
705  * \param Encoding    DWARF encoding code, e.g. \c LLVMDWARFTypeEncoding_float.
706  * \param Flags       Flags to encode optional attribute like endianity
707  */
708 LLVMMetadataRef
709 LLVMDIBuilderCreateBasicType(LLVMDIBuilderRef Builder, const char *Name,
710                              size_t NameLen, uint64_t SizeInBits,
711                              LLVMDWARFTypeEncoding Encoding,
712                              LLVMDIFlags Flags);
713 
714 /**
715  * Create debugging information entry for a pointer.
716  * \param Builder     The DIBuilder.
717  * \param PointeeTy         Type pointed by this pointer.
718  * \param SizeInBits        Size.
719  * \param AlignInBits       Alignment. (optional, pass 0 to ignore)
720  * \param AddressSpace      DWARF address space. (optional, pass 0 to ignore)
721  * \param Name              Pointer type name. (optional)
722  * \param NameLen           Length of pointer type name. (optional)
723  */
724 LLVMMetadataRef LLVMDIBuilderCreatePointerType(
725     LLVMDIBuilderRef Builder, LLVMMetadataRef PointeeTy,
726     uint64_t SizeInBits, uint32_t AlignInBits, unsigned AddressSpace,
727     const char *Name, size_t NameLen);
728 
729 /**
730  * Create debugging information entry for a struct.
731  * \param Builder     The DIBuilder.
732  * \param Scope        Scope in which this struct is defined.
733  * \param Name         Struct name.
734  * \param NameLen      Struct name length.
735  * \param File         File where this member is defined.
736  * \param LineNumber   Line number.
737  * \param SizeInBits   Member size.
738  * \param AlignInBits  Member alignment.
739  * \param Flags        Flags to encode member attribute, e.g. private
740  * \param Elements     Struct elements.
741  * \param NumElements  Number of struct elements.
742  * \param RunTimeLang  Optional parameter, Objective-C runtime version.
743  * \param VTableHolder The object containing the vtable for the struct.
744  * \param UniqueId     A unique identifier for the struct.
745  * \param UniqueIdLen  Length of the unique identifier for the struct.
746  */
747 LLVMMetadataRef LLVMDIBuilderCreateStructType(
748     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
749     size_t NameLen, LLVMMetadataRef File, unsigned LineNumber,
750     uint64_t SizeInBits, uint32_t AlignInBits, LLVMDIFlags Flags,
751     LLVMMetadataRef DerivedFrom, LLVMMetadataRef *Elements,
752     unsigned NumElements, unsigned RunTimeLang, LLVMMetadataRef VTableHolder,
753     const char *UniqueId, size_t UniqueIdLen);
754 
755 /**
756  * Create debugging information entry for a member.
757  * \param Builder      The DIBuilder.
758  * \param Scope        Member scope.
759  * \param Name         Member name.
760  * \param NameLen      Length of member name.
761  * \param File         File where this member is defined.
762  * \param LineNo       Line number.
763  * \param SizeInBits   Member size.
764  * \param AlignInBits  Member alignment.
765  * \param OffsetInBits Member offset.
766  * \param Flags        Flags to encode member attribute, e.g. private
767  * \param Ty           Parent type.
768  */
769 LLVMMetadataRef LLVMDIBuilderCreateMemberType(
770     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
771     size_t NameLen, LLVMMetadataRef File, unsigned LineNo,
772     uint64_t SizeInBits, uint32_t AlignInBits, uint64_t OffsetInBits,
773     LLVMDIFlags Flags, LLVMMetadataRef Ty);
774 
775 /**
776  * Create debugging information entry for a
777  * C++ static data member.
778  * \param Builder      The DIBuilder.
779  * \param Scope        Member scope.
780  * \param Name         Member name.
781  * \param NameLen      Length of member name.
782  * \param File         File where this member is declared.
783  * \param LineNumber   Line number.
784  * \param Type         Type of the static member.
785  * \param Flags        Flags to encode member attribute, e.g. private.
786  * \param ConstantVal  Const initializer of the member.
787  * \param AlignInBits  Member alignment.
788  */
789 LLVMMetadataRef
790 LLVMDIBuilderCreateStaticMemberType(
791     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
792     size_t NameLen, LLVMMetadataRef File, unsigned LineNumber,
793     LLVMMetadataRef Type, LLVMDIFlags Flags, LLVMValueRef ConstantVal,
794     uint32_t AlignInBits);
795 
796 /**
797  * Create debugging information entry for a pointer to member.
798  * \param Builder      The DIBuilder.
799  * \param PointeeType  Type pointed to by this pointer.
800  * \param ClassType    Type for which this pointer points to members of.
801  * \param SizeInBits   Size.
802  * \param AlignInBits  Alignment.
803  * \param Flags        Flags.
804  */
805 LLVMMetadataRef
806 LLVMDIBuilderCreateMemberPointerType(LLVMDIBuilderRef Builder,
807                                      LLVMMetadataRef PointeeType,
808                                      LLVMMetadataRef ClassType,
809                                      uint64_t SizeInBits,
810                                      uint32_t AlignInBits,
811                                      LLVMDIFlags Flags);
812 /**
813  * Create debugging information entry for Objective-C instance variable.
814  * \param Builder      The DIBuilder.
815  * \param Name         Member name.
816  * \param NameLen      The length of the C string passed to \c Name.
817  * \param File         File where this member is defined.
818  * \param LineNo       Line number.
819  * \param SizeInBits   Member size.
820  * \param AlignInBits  Member alignment.
821  * \param OffsetInBits Member offset.
822  * \param Flags        Flags to encode member attribute, e.g. private
823  * \param Ty           Parent type.
824  * \param PropertyNode Property associated with this ivar.
825  */
826 LLVMMetadataRef
827 LLVMDIBuilderCreateObjCIVar(LLVMDIBuilderRef Builder,
828                             const char *Name, size_t NameLen,
829                             LLVMMetadataRef File, unsigned LineNo,
830                             uint64_t SizeInBits, uint32_t AlignInBits,
831                             uint64_t OffsetInBits, LLVMDIFlags Flags,
832                             LLVMMetadataRef Ty, LLVMMetadataRef PropertyNode);
833 
834 /**
835  * Create debugging information entry for Objective-C property.
836  * \param Builder            The DIBuilder.
837  * \param Name               Property name.
838  * \param NameLen            The length of the C string passed to \c Name.
839  * \param File               File where this property is defined.
840  * \param LineNo             Line number.
841  * \param GetterName         Name of the Objective C property getter selector.
842  * \param GetterNameLen      The length of the C string passed to \c GetterName.
843  * \param SetterName         Name of the Objective C property setter selector.
844  * \param SetterNameLen      The length of the C string passed to \c SetterName.
845  * \param PropertyAttributes Objective C property attributes.
846  * \param Ty                 Type.
847  */
848 LLVMMetadataRef
849 LLVMDIBuilderCreateObjCProperty(LLVMDIBuilderRef Builder,
850                                 const char *Name, size_t NameLen,
851                                 LLVMMetadataRef File, unsigned LineNo,
852                                 const char *GetterName, size_t GetterNameLen,
853                                 const char *SetterName, size_t SetterNameLen,
854                                 unsigned PropertyAttributes,
855                                 LLVMMetadataRef Ty);
856 
857 /**
858  * Create a uniqued DIType* clone with FlagObjectPointer and FlagArtificial set.
859  * \param Builder   The DIBuilder.
860  * \param Type      The underlying type to which this pointer points.
861  */
862 LLVMMetadataRef
863 LLVMDIBuilderCreateObjectPointerType(LLVMDIBuilderRef Builder,
864                                      LLVMMetadataRef Type);
865 
866 /**
867  * Create debugging information entry for a qualified
868  * type, e.g. 'const int'.
869  * \param Builder     The DIBuilder.
870  * \param Tag         Tag identifying type,
871  *                    e.g. LLVMDWARFTypeQualifier_volatile_type
872  * \param Type        Base Type.
873  */
874 LLVMMetadataRef
875 LLVMDIBuilderCreateQualifiedType(LLVMDIBuilderRef Builder, unsigned Tag,
876                                  LLVMMetadataRef Type);
877 
878 /**
879  * Create debugging information entry for a c++
880  * style reference or rvalue reference type.
881  * \param Builder   The DIBuilder.
882  * \param Tag       Tag identifying type,
883  * \param Type      Base Type.
884  */
885 LLVMMetadataRef
886 LLVMDIBuilderCreateReferenceType(LLVMDIBuilderRef Builder, unsigned Tag,
887                                  LLVMMetadataRef Type);
888 
889 /**
890  * Create C++11 nullptr type.
891  * \param Builder   The DIBuilder.
892  */
893 LLVMMetadataRef
894 LLVMDIBuilderCreateNullPtrType(LLVMDIBuilderRef Builder);
895 
896 /**
897  * Create debugging information entry for a typedef.
898  * \param Builder    The DIBuilder.
899  * \param Type       Original type.
900  * \param Name       Typedef name.
901  * \param File       File where this type is defined.
902  * \param LineNo     Line number.
903  * \param Scope      The surrounding context for the typedef.
904  */
905 LLVMMetadataRef
906 LLVMDIBuilderCreateTypedef(LLVMDIBuilderRef Builder, LLVMMetadataRef Type,
907                            const char *Name, size_t NameLen,
908                            LLVMMetadataRef File, unsigned LineNo,
909                            LLVMMetadataRef Scope, uint32_t AlignInBits);
910 
911 /**
912  * Create debugging information entry to establish inheritance relationship
913  * between two types.
914  * \param Builder       The DIBuilder.
915  * \param Ty            Original type.
916  * \param BaseTy        Base type. Ty is inherits from base.
917  * \param BaseOffset    Base offset.
918  * \param VBPtrOffset  Virtual base pointer offset.
919  * \param Flags         Flags to describe inheritance attribute, e.g. private
920  */
921 LLVMMetadataRef
922 LLVMDIBuilderCreateInheritance(LLVMDIBuilderRef Builder,
923                                LLVMMetadataRef Ty, LLVMMetadataRef BaseTy,
924                                uint64_t BaseOffset, uint32_t VBPtrOffset,
925                                LLVMDIFlags Flags);
926 
927 /**
928  * Create a permanent forward-declared type.
929  * \param Builder             The DIBuilder.
930  * \param Tag                 A unique tag for this type.
931  * \param Name                Type name.
932  * \param NameLen             Length of type name.
933  * \param Scope               Type scope.
934  * \param File                File where this type is defined.
935  * \param Line                Line number where this type is defined.
936  * \param RuntimeLang         Indicates runtime version for languages like
937  *                            Objective-C.
938  * \param SizeInBits          Member size.
939  * \param AlignInBits         Member alignment.
940  * \param UniqueIdentifier    A unique identifier for the type.
941  * \param UniqueIdentifierLen Length of the unique identifier.
942  */
943 LLVMMetadataRef LLVMDIBuilderCreateForwardDecl(
944     LLVMDIBuilderRef Builder, unsigned Tag, const char *Name,
945     size_t NameLen, LLVMMetadataRef Scope, LLVMMetadataRef File, unsigned Line,
946     unsigned RuntimeLang, uint64_t SizeInBits, uint32_t AlignInBits,
947     const char *UniqueIdentifier, size_t UniqueIdentifierLen);
948 
949 /**
950  * Create a temporary forward-declared type.
951  * \param Builder             The DIBuilder.
952  * \param Tag                 A unique tag for this type.
953  * \param Name                Type name.
954  * \param NameLen             Length of type name.
955  * \param Scope               Type scope.
956  * \param File                File where this type is defined.
957  * \param Line                Line number where this type is defined.
958  * \param RuntimeLang         Indicates runtime version for languages like
959  *                            Objective-C.
960  * \param SizeInBits          Member size.
961  * \param AlignInBits         Member alignment.
962  * \param Flags               Flags.
963  * \param UniqueIdentifier    A unique identifier for the type.
964  * \param UniqueIdentifierLen Length of the unique identifier.
965  */
966 LLVMMetadataRef
967 LLVMDIBuilderCreateReplaceableCompositeType(
968     LLVMDIBuilderRef Builder, unsigned Tag, const char *Name,
969     size_t NameLen, LLVMMetadataRef Scope, LLVMMetadataRef File, unsigned Line,
970     unsigned RuntimeLang, uint64_t SizeInBits, uint32_t AlignInBits,
971     LLVMDIFlags Flags, const char *UniqueIdentifier,
972     size_t UniqueIdentifierLen);
973 
974 /**
975  * Create debugging information entry for a bit field member.
976  * \param Builder             The DIBuilder.
977  * \param Scope               Member scope.
978  * \param Name                Member name.
979  * \param NameLen             Length of member name.
980  * \param File                File where this member is defined.
981  * \param LineNumber          Line number.
982  * \param SizeInBits          Member size.
983  * \param OffsetInBits        Member offset.
984  * \param StorageOffsetInBits Member storage offset.
985  * \param Flags               Flags to encode member attribute.
986  * \param Type                Parent type.
987  */
988 LLVMMetadataRef
989 LLVMDIBuilderCreateBitFieldMemberType(LLVMDIBuilderRef Builder,
990                                       LLVMMetadataRef Scope,
991                                       const char *Name, size_t NameLen,
992                                       LLVMMetadataRef File, unsigned LineNumber,
993                                       uint64_t SizeInBits,
994                                       uint64_t OffsetInBits,
995                                       uint64_t StorageOffsetInBits,
996                                       LLVMDIFlags Flags, LLVMMetadataRef Type);
997 
998 /**
999  * Create debugging information entry for a class.
1000  * \param Scope               Scope in which this class is defined.
1001  * \param Name                Class name.
1002  * \param NameLen             The length of the C string passed to \c Name.
1003  * \param File                File where this member is defined.
1004  * \param LineNumber          Line number.
1005  * \param SizeInBits          Member size.
1006  * \param AlignInBits         Member alignment.
1007  * \param OffsetInBits        Member offset.
1008  * \param Flags               Flags to encode member attribute, e.g. private.
1009  * \param DerivedFrom         Debug info of the base class of this type.
1010  * \param Elements            Class members.
1011  * \param NumElements         Number of class elements.
1012  * \param VTableHolder        Debug info of the base class that contains vtable
1013  *                            for this type. This is used in
1014  *                            DW_AT_containing_type. See DWARF documentation
1015  *                            for more info.
1016  * \param TemplateParamsNode  Template type parameters.
1017  * \param UniqueIdentifier    A unique identifier for the type.
1018  * \param UniqueIdentifierLen Length of the unique identifier.
1019  */
1020 LLVMMetadataRef LLVMDIBuilderCreateClassType(LLVMDIBuilderRef Builder,
1021     LLVMMetadataRef Scope, const char *Name, size_t NameLen,
1022     LLVMMetadataRef File, unsigned LineNumber, uint64_t SizeInBits,
1023     uint32_t AlignInBits, uint64_t OffsetInBits, LLVMDIFlags Flags,
1024     LLVMMetadataRef DerivedFrom,
1025     LLVMMetadataRef *Elements, unsigned NumElements,
1026     LLVMMetadataRef VTableHolder, LLVMMetadataRef TemplateParamsNode,
1027     const char *UniqueIdentifier, size_t UniqueIdentifierLen);
1028 
1029 /**
1030  * Create a uniqued DIType* clone with FlagArtificial set.
1031  * \param Builder     The DIBuilder.
1032  * \param Type        The underlying type.
1033  */
1034 LLVMMetadataRef
1035 LLVMDIBuilderCreateArtificialType(LLVMDIBuilderRef Builder,
1036                                   LLVMMetadataRef Type);
1037 
1038 /**
1039  * Get the name of this DIType.
1040  * \param DType     The DIType.
1041  * \param Length    The length of the returned string.
1042  *
1043  * @see DIType::getName()
1044  */
1045 const char *LLVMDITypeGetName(LLVMMetadataRef DType, size_t *Length);
1046 
1047 /**
1048  * Get the size of this DIType in bits.
1049  * \param DType     The DIType.
1050  *
1051  * @see DIType::getSizeInBits()
1052  */
1053 uint64_t LLVMDITypeGetSizeInBits(LLVMMetadataRef DType);
1054 
1055 /**
1056  * Get the offset of this DIType in bits.
1057  * \param DType     The DIType.
1058  *
1059  * @see DIType::getOffsetInBits()
1060  */
1061 uint64_t LLVMDITypeGetOffsetInBits(LLVMMetadataRef DType);
1062 
1063 /**
1064  * Get the alignment of this DIType in bits.
1065  * \param DType     The DIType.
1066  *
1067  * @see DIType::getAlignInBits()
1068  */
1069 uint32_t LLVMDITypeGetAlignInBits(LLVMMetadataRef DType);
1070 
1071 /**
1072  * Get the source line where this DIType is declared.
1073  * \param DType     The DIType.
1074  *
1075  * @see DIType::getLine()
1076  */
1077 unsigned LLVMDITypeGetLine(LLVMMetadataRef DType);
1078 
1079 /**
1080  * Get the flags associated with this DIType.
1081  * \param DType     The DIType.
1082  *
1083  * @see DIType::getFlags()
1084  */
1085 LLVMDIFlags LLVMDITypeGetFlags(LLVMMetadataRef DType);
1086 
1087 /**
1088  * Create a descriptor for a value range.
1089  * \param Builder    The DIBuilder.
1090  * \param LowerBound Lower bound of the subrange, e.g. 0 for C, 1 for Fortran.
1091  * \param Count      Count of elements in the subrange.
1092  */
1093 LLVMMetadataRef LLVMDIBuilderGetOrCreateSubrange(LLVMDIBuilderRef Builder,
1094                                                  int64_t LowerBound,
1095                                                  int64_t Count);
1096 
1097 /**
1098  * Create an array of DI Nodes.
1099  * \param Builder        The DIBuilder.
1100  * \param Data           The DI Node elements.
1101  * \param NumElements    Number of DI Node elements.
1102  */
1103 LLVMMetadataRef LLVMDIBuilderGetOrCreateArray(LLVMDIBuilderRef Builder,
1104                                               LLVMMetadataRef *Data,
1105                                               size_t NumElements);
1106 
1107 /**
1108  * Create a new descriptor for the specified variable which has a complex
1109  * address expression for its address.
1110  * \param Builder     The DIBuilder.
1111  * \param Addr        An array of complex address operations.
1112  * \param Length      Length of the address operation array.
1113  */
1114 LLVMMetadataRef LLVMDIBuilderCreateExpression(LLVMDIBuilderRef Builder,
1115                                               uint64_t *Addr, size_t Length);
1116 
1117 /**
1118  * Create a new descriptor for the specified variable that does not have an
1119  * address, but does have a constant value.
1120  * \param Builder     The DIBuilder.
1121  * \param Value       The constant value.
1122  */
1123 LLVMMetadataRef
1124 LLVMDIBuilderCreateConstantValueExpression(LLVMDIBuilderRef Builder,
1125                                            uint64_t Value);
1126 
1127 /**
1128  * Create a new descriptor for the specified variable.
1129  * \param Scope       Variable scope.
1130  * \param Name        Name of the variable.
1131  * \param NameLen     The length of the C string passed to \c Name.
1132  * \param Linkage     Mangled  name of the variable.
1133  * \param LinkLen     The length of the C string passed to \c Linkage.
1134  * \param File        File where this variable is defined.
1135  * \param LineNo      Line number.
1136  * \param Ty          Variable Type.
1137  * \param LocalToUnit Boolean flag indicate whether this variable is
1138  *                    externally visible or not.
1139  * \param Expr        The location of the global relative to the attached
1140  *                    GlobalVariable.
1141  * \param Decl        Reference to the corresponding declaration.
1142  *                    variables.
1143  * \param AlignInBits Variable alignment(or 0 if no alignment attr was
1144  *                    specified)
1145  */
1146 LLVMMetadataRef LLVMDIBuilderCreateGlobalVariableExpression(
1147     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
1148     size_t NameLen, const char *Linkage, size_t LinkLen, LLVMMetadataRef File,
1149     unsigned LineNo, LLVMMetadataRef Ty, LLVMBool LocalToUnit,
1150     LLVMMetadataRef Expr, LLVMMetadataRef Decl, uint32_t AlignInBits);
1151 
1152 /**
1153  * Retrieves the \c DIVariable associated with this global variable expression.
1154  * \param GVE    The global variable expression.
1155  *
1156  * @see llvm::DIGlobalVariableExpression::getVariable()
1157  */
1158 LLVMMetadataRef LLVMDIGlobalVariableExpressionGetVariable(LLVMMetadataRef GVE);
1159 
1160 /**
1161  * Retrieves the \c DIExpression associated with this global variable expression.
1162  * \param GVE    The global variable expression.
1163  *
1164  * @see llvm::DIGlobalVariableExpression::getExpression()
1165  */
1166 LLVMMetadataRef LLVMDIGlobalVariableExpressionGetExpression(
1167     LLVMMetadataRef GVE);
1168 
1169 /**
1170  * Get the metadata of the file associated with a given variable.
1171  * \param Var     The variable object.
1172  *
1173  * @see DIVariable::getFile()
1174  */
1175 LLVMMetadataRef LLVMDIVariableGetFile(LLVMMetadataRef Var);
1176 
1177 /**
1178  * Get the metadata of the scope associated with a given variable.
1179  * \param Var     The variable object.
1180  *
1181  * @see DIVariable::getScope()
1182  */
1183 LLVMMetadataRef LLVMDIVariableGetScope(LLVMMetadataRef Var);
1184 
1185 /**
1186  * Get the source line where this \c DIVariable is declared.
1187  * \param Var     The DIVariable.
1188  *
1189  * @see DIVariable::getLine()
1190  */
1191 unsigned LLVMDIVariableGetLine(LLVMMetadataRef Var);
1192 
1193 /**
1194  * Create a new temporary \c MDNode.  Suitable for use in constructing cyclic
1195  * \c MDNode structures. A temporary \c MDNode is not uniqued, may be RAUW'd,
1196  * and must be manually deleted with \c LLVMDisposeTemporaryMDNode.
1197  * \param Ctx            The context in which to construct the temporary node.
1198  * \param Data           The metadata elements.
1199  * \param NumElements    Number of metadata elements.
1200  */
1201 LLVMMetadataRef LLVMTemporaryMDNode(LLVMContextRef Ctx, LLVMMetadataRef *Data,
1202                                     size_t NumElements);
1203 
1204 /**
1205  * Deallocate a temporary node.
1206  *
1207  * Calls \c replaceAllUsesWith(nullptr) before deleting, so any remaining
1208  * references will be reset.
1209  * \param TempNode    The temporary metadata node.
1210  */
1211 void LLVMDisposeTemporaryMDNode(LLVMMetadataRef TempNode);
1212 
1213 /**
1214  * Replace all uses of temporary metadata.
1215  * \param TempTargetMetadata    The temporary metadata node.
1216  * \param Replacement           The replacement metadata node.
1217  */
1218 void LLVMMetadataReplaceAllUsesWith(LLVMMetadataRef TempTargetMetadata,
1219                                     LLVMMetadataRef Replacement);
1220 
1221 /**
1222  * Create a new descriptor for the specified global variable that is temporary
1223  * and meant to be RAUWed.
1224  * \param Scope       Variable scope.
1225  * \param Name        Name of the variable.
1226  * \param NameLen     The length of the C string passed to \c Name.
1227  * \param Linkage     Mangled  name of the variable.
1228  * \param LnkLen      The length of the C string passed to \c Linkage.
1229  * \param File        File where this variable is defined.
1230  * \param LineNo      Line number.
1231  * \param Ty          Variable Type.
1232  * \param LocalToUnit Boolean flag indicate whether this variable is
1233  *                    externally visible or not.
1234  * \param Decl        Reference to the corresponding declaration.
1235  * \param AlignInBits Variable alignment(or 0 if no alignment attr was
1236  *                    specified)
1237  */
1238 LLVMMetadataRef LLVMDIBuilderCreateTempGlobalVariableFwdDecl(
1239     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
1240     size_t NameLen, const char *Linkage, size_t LnkLen, LLVMMetadataRef File,
1241     unsigned LineNo, LLVMMetadataRef Ty, LLVMBool LocalToUnit,
1242     LLVMMetadataRef Decl, uint32_t AlignInBits);
1243 
1244 /**
1245  * Insert a new llvm.dbg.declare intrinsic call before the given instruction.
1246  * \param Builder     The DIBuilder.
1247  * \param Storage     The storage of the variable to declare.
1248  * \param VarInfo     The variable's debug info descriptor.
1249  * \param Expr        A complex location expression for the variable.
1250  * \param DebugLoc    Debug info location.
1251  * \param Instr       Instruction acting as a location for the new intrinsic.
1252  */
1253 LLVMValueRef LLVMDIBuilderInsertDeclareBefore(
1254   LLVMDIBuilderRef Builder, LLVMValueRef Storage, LLVMMetadataRef VarInfo,
1255   LLVMMetadataRef Expr, LLVMMetadataRef DebugLoc, LLVMValueRef Instr);
1256 
1257 /**
1258  * Insert a new llvm.dbg.declare intrinsic call at the end of the given basic
1259  * block. If the basic block has a terminator instruction, the intrinsic is
1260  * inserted before that terminator instruction.
1261  * \param Builder     The DIBuilder.
1262  * \param Storage     The storage of the variable to declare.
1263  * \param VarInfo     The variable's debug info descriptor.
1264  * \param Expr        A complex location expression for the variable.
1265  * \param DebugLoc    Debug info location.
1266  * \param Block       Basic block acting as a location for the new intrinsic.
1267  */
1268 LLVMValueRef LLVMDIBuilderInsertDeclareAtEnd(
1269     LLVMDIBuilderRef Builder, LLVMValueRef Storage, LLVMMetadataRef VarInfo,
1270     LLVMMetadataRef Expr, LLVMMetadataRef DebugLoc, LLVMBasicBlockRef Block);
1271 
1272 /**
1273  * Insert a new llvm.dbg.value intrinsic call before the given instruction.
1274  * \param Builder     The DIBuilder.
1275  * \param Val         The value of the variable.
1276  * \param VarInfo     The variable's debug info descriptor.
1277  * \param Expr        A complex location expression for the variable.
1278  * \param DebugLoc    Debug info location.
1279  * \param Instr       Instruction acting as a location for the new intrinsic.
1280  */
1281 LLVMValueRef LLVMDIBuilderInsertDbgValueBefore(LLVMDIBuilderRef Builder,
1282                                                LLVMValueRef Val,
1283                                                LLVMMetadataRef VarInfo,
1284                                                LLVMMetadataRef Expr,
1285                                                LLVMMetadataRef DebugLoc,
1286                                                LLVMValueRef Instr);
1287 
1288 /**
1289  * Insert a new llvm.dbg.value intrinsic call at the end of the given basic
1290  * block. If the basic block has a terminator instruction, the intrinsic is
1291  * inserted before that terminator instruction.
1292  * \param Builder     The DIBuilder.
1293  * \param Val         The value of the variable.
1294  * \param VarInfo     The variable's debug info descriptor.
1295  * \param Expr        A complex location expression for the variable.
1296  * \param DebugLoc    Debug info location.
1297  * \param Block       Basic block acting as a location for the new intrinsic.
1298  */
1299 LLVMValueRef LLVMDIBuilderInsertDbgValueAtEnd(LLVMDIBuilderRef Builder,
1300                                               LLVMValueRef Val,
1301                                               LLVMMetadataRef VarInfo,
1302                                               LLVMMetadataRef Expr,
1303                                               LLVMMetadataRef DebugLoc,
1304                                               LLVMBasicBlockRef Block);
1305 
1306 /**
1307  * Create a new descriptor for a local auto variable.
1308  * \param Builder         The DIBuilder.
1309  * \param Scope           The local scope the variable is declared in.
1310  * \param Name            Variable name.
1311  * \param NameLen         Length of variable name.
1312  * \param File            File where this variable is defined.
1313  * \param LineNo          Line number.
1314  * \param Ty              Metadata describing the type of the variable.
1315  * \param AlwaysPreserve  If true, this descriptor will survive optimizations.
1316  * \param Flags           Flags.
1317  * \param AlignInBits     Variable alignment.
1318  */
1319 LLVMMetadataRef LLVMDIBuilderCreateAutoVariable(
1320     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
1321     size_t NameLen, LLVMMetadataRef File, unsigned LineNo, LLVMMetadataRef Ty,
1322     LLVMBool AlwaysPreserve, LLVMDIFlags Flags, uint32_t AlignInBits);
1323 
1324 /**
1325  * Create a new descriptor for a function parameter variable.
1326  * \param Builder         The DIBuilder.
1327  * \param Scope           The local scope the variable is declared in.
1328  * \param Name            Variable name.
1329  * \param NameLen         Length of variable name.
1330  * \param ArgNo           Unique argument number for this variable; starts at 1.
1331  * \param File            File where this variable is defined.
1332  * \param LineNo          Line number.
1333  * \param Ty              Metadata describing the type of the variable.
1334  * \param AlwaysPreserve  If true, this descriptor will survive optimizations.
1335  * \param Flags           Flags.
1336  */
1337 LLVMMetadataRef LLVMDIBuilderCreateParameterVariable(
1338     LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
1339     size_t NameLen, unsigned ArgNo, LLVMMetadataRef File, unsigned LineNo,
1340     LLVMMetadataRef Ty, LLVMBool AlwaysPreserve, LLVMDIFlags Flags);
1341 
1342 /**
1343  * Get the metadata of the subprogram attached to a function.
1344  *
1345  * @see llvm::Function::getSubprogram()
1346  */
1347 LLVMMetadataRef LLVMGetSubprogram(LLVMValueRef Func);
1348 
1349 /**
1350  * Set the subprogram attached to a function.
1351  *
1352  * @see llvm::Function::setSubprogram()
1353  */
1354 void LLVMSetSubprogram(LLVMValueRef Func, LLVMMetadataRef SP);
1355 
1356 /**
1357  * Get the line associated with a given subprogram.
1358  * \param Subprogram     The subprogram object.
1359  *
1360  * @see DISubprogram::getLine()
1361  */
1362 unsigned LLVMDISubprogramGetLine(LLVMMetadataRef Subprogram);
1363 
1364 /**
1365  * Get the debug location for the given instruction.
1366  *
1367  * @see llvm::Instruction::getDebugLoc()
1368  */
1369 LLVMMetadataRef LLVMInstructionGetDebugLoc(LLVMValueRef Inst);
1370 
1371 /**
1372  * Set the debug location for the given instruction.
1373  *
1374  * To clear the location metadata of the given instruction, pass NULL to \p Loc.
1375  *
1376  * @see llvm::Instruction::setDebugLoc()
1377  */
1378 void LLVMInstructionSetDebugLoc(LLVMValueRef Inst, LLVMMetadataRef Loc);
1379 
1380 /**
1381  * Obtain the enumerated type of a Metadata instance.
1382  *
1383  * @see llvm::Metadata::getMetadataID()
1384  */
1385 LLVMMetadataKind LLVMGetMetadataKind(LLVMMetadataRef Metadata);
1386 
1387 /**
1388  * @}
1389  */
1390 
1391 LLVM_C_EXTERN_C_END
1392 
1393 #endif
1394