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Add support to create debug info for functions and methods.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121281 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2010-12-08 20:42:44 +00:00
parent 0c2c217244
commit 44498a640d
2 changed files with 129 additions and 0 deletions
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52
include/llvm/Analysis/DIBuilder.h
View File

@ -37,6 +37,7 @@ namespace llvm {
class DIVariable;
class DISubrange;
class DILexicalBlock;
class DISubprogram;
class DIBuilder {
private:
@ -315,6 +316,57 @@ namespace llvm {
DIType Ty, Value *const *Addr,
unsigned NumAddr);
/// CreateFunction - Create a new descriptor for the specified subprogram.
/// See comments in DISubprogram for descriptions of these fields.
/// @param Scope Function scope.
/// @param Name Function name.
/// @param LinkageName Mangled function name.
/// @param File File where this variable is defined.
/// @param LineNo Line number.
/// @param Ty Function type.
/// @param isLocalToUnit True if this function is not externally visible..
/// @param isDefinition True if this is a function definition.
/// @param Flags e.g. is this function prototyped or not.
/// This flags are used to emit dwarf attributes.
/// @param isOptimized True if optimization is ON.
/// @param Fn llvm::Function pointer.
DISubprogram CreateFunction(DIDescriptor Scope, StringRef Name,
StringRef LinkageName,
DIFile File, unsigned LineNo,
DIType Ty, bool isLocalToUnit,
bool isDefinition,
unsigned Flags = 0,
bool isOptimized = false,
Function *Fn = 0);
/// CreateMethod - Create a new descriptor for the specified C++ method.
/// See comments in DISubprogram for descriptions of these fields.
/// @param Scope Function scope.
/// @param Name Function name.
/// @param LinkageName Mangled function name.
/// @param File File where this variable is defined.
/// @param LineNo Line number.
/// @param Ty Function type.
/// @param isLocalToUnit True if this function is not externally visible..
/// @param isDefinition True if this is a function definition.
/// @param Virtuality Attributes describing virutallness. e.g. pure
/// virtual function.
/// @param VTableIndex Index no of this method in virtual table.
/// @param VTableHolder Type that holds vtable.
/// @param Flags e.g. is this function prototyped or not.
/// This flags are used to emit dwarf attributes.
/// @param isOptimized True if optimization is ON.
/// @param Fn llvm::Function pointer.
DISubprogram CreateMethod(DIDescriptor Scope, StringRef Name,
StringRef LinkageName,
DIFile File, unsigned LineNo,
DIType Ty, bool isLocalToUnit,
bool isDefinition,
unsigned Virtuality = 0, unsigned VTableIndex = 0,
MDNode *VTableHolder = 0,
unsigned Flags = 0,
bool isOptimized = false,
Function *Fn = 0);
/// CreateNameSpace - This creates new descriptor for a namespace
/// with the specified parent scope.

77
lib/Analysis/DIBuilder.cpp
View File

@ -592,6 +592,83 @@ DIVariable DIBuilder::CreateComplexVariable(unsigned Tag, DIDescriptor Scope,
return DIVariable(MDNode::get(VMContext, Elts.data(), Elts.size()));
}
/// CreateFunction - Create a new descriptor for the specified function.
DISubprogram DIBuilder::CreateFunction(DIDescriptor Context,
StringRef Name,
StringRef LinkageName,
DIFile File, unsigned LineNo,
DIType Ty,
bool isLocalToUnit, bool isDefinition,
unsigned Flags, bool isOptimized,
Function *Fn) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
Context,
MDString::get(VMContext, Name),
MDString::get(VMContext, Name),
MDString::get(VMContext, LinkageName),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
Ty,
ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
Fn
};
MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
// Create a named metadata so that we do not lose this mdnode.
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp");
NMD->addOperand(Node);
return DISubprogram(Node);
}
/// CreateMethod - Create a new descriptor for the specified C++ method.
DISubprogram DIBuilder::CreateMethod(DIDescriptor Context,
StringRef Name,
StringRef LinkageName,
DIFile F,
unsigned LineNo, DIType Ty,
bool isLocalToUnit,
bool isDefinition,
unsigned VK, unsigned VIndex,
MDNode *VTableHolder,
unsigned Flags,
bool isOptimized,
Function *Fn) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
Context,
MDString::get(VMContext, Name),
MDString::get(VMContext, Name),
MDString::get(VMContext, LinkageName),
F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
Ty,
ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
ConstantInt::get(Type::getInt32Ty(VMContext), (unsigned)VK),
ConstantInt::get(Type::getInt32Ty(VMContext), VIndex),
VTableHolder,
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
Fn
};
MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
// Create a named metadata so that we do not lose this mdnode.
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp");
NMD->addOperand(Node);
return DISubprogram(Node);
}
/// CreateNameSpace - This creates new descriptor for a namespace
/// with the specified parent scope.
DINameSpace DIBuilder::CreateNameSpace(DIDescriptor Scope, StringRef Name,