#define LLVM_DEBUGINFO_DWARFDEBUGINFOENTRY_H
#include "DWARFAbbreviationDeclaration.h"
+#include "DWARFDebugRangeList.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/DebugInfo/DIContext.h"
#include "llvm/Support/DataTypes.h"
namespace llvm {
class DWARFDebugAranges;
class DWARFCompileUnit;
+class DWARFUnit;
class DWARFContext;
class DWARFFormValue;
+struct DWARFDebugInfoEntryInlinedChain;
/// DWARFDebugInfoEntryMinimal - A DIE with only the minimum required data.
class DWARFDebugInfoEntryMinimal {
/// Offset within the .debug_info of the start of this entry.
- uint64_t Offset;
-
- /// How many to subtract from "this" to get the parent.
- /// If zero this die has no parent.
- uint32_t ParentIdx;
+ uint32_t Offset;
/// How many to add to "this" to get the sibling.
uint32_t SiblingIdx;
const DWARFAbbreviationDeclaration *AbbrevDecl;
public:
DWARFDebugInfoEntryMinimal()
- : Offset(0), ParentIdx(0), SiblingIdx(0), AbbrevDecl(0) {}
-
- void dump(raw_ostream &OS, const DWARFCompileUnit *cu,
- unsigned recurseDepth, unsigned indent = 0) const;
- void dumpAttribute(raw_ostream &OS, const DWARFCompileUnit *cu,
- uint32_t *offset_ptr, uint16_t attr, uint16_t form,
- unsigned indent = 0) const;
+ : Offset(0), SiblingIdx(0), AbbrevDecl(nullptr) {}
- bool extractFast(const DWARFCompileUnit *cu, const uint8_t *fixed_form_sizes,
- uint32_t *offset_ptr);
+ void dump(raw_ostream &OS, const DWARFUnit *u, unsigned recurseDepth,
+ unsigned indent = 0) const;
+ void dumpAttribute(raw_ostream &OS, const DWARFUnit *u, uint32_t *offset_ptr,
+ uint16_t attr, uint16_t form, unsigned indent = 0) const;
- /// Extract a debug info entry for a given compile unit from the
- /// .debug_info and .debug_abbrev data starting at the given offset.
- bool extract(const DWARFCompileUnit *cu, uint32_t *offset_ptr);
+ /// Extracts a debug info entry, which is a child of a given unit,
+ /// starting at a given offset. If DIE can't be extracted, returns false and
+ /// doesn't change OffsetPtr.
+ bool extractFast(const DWARFUnit *U, uint32_t *OffsetPtr);
uint32_t getTag() const { return AbbrevDecl ? AbbrevDecl->getTag() : 0; }
- bool isNULL() const { return AbbrevDecl == 0; }
- uint64_t getOffset() const { return Offset; }
- uint32_t getNumAttributes() const {
- return !isNULL() ? AbbrevDecl->getNumAttributes() : 0;
- }
+ bool isNULL() const { return AbbrevDecl == nullptr; }
+
+ /// Returns true if DIE represents a subprogram (not inlined).
+ bool isSubprogramDIE() const;
+ /// Returns true if DIE represents a subprogram or an inlined
+ /// subroutine.
+ bool isSubroutineDIE() const;
+
+ uint32_t getOffset() const { return Offset; }
bool hasChildren() const { return !isNULL() && AbbrevDecl->hasChildren(); }
// We know we are kept in a vector of contiguous entries, so we know
- // our parent will be some index behind "this".
- DWARFDebugInfoEntryMinimal *getParent() {
- return ParentIdx > 0 ? this - ParentIdx : 0;
- }
- const DWARFDebugInfoEntryMinimal *getParent() const {
- return ParentIdx > 0 ? this - ParentIdx : 0;
- }
- // We know we are kept in a vector of contiguous entries, so we know
// our sibling will be some index after "this".
- DWARFDebugInfoEntryMinimal *getSibling() {
- return SiblingIdx > 0 ? this + SiblingIdx : 0;
- }
const DWARFDebugInfoEntryMinimal *getSibling() const {
- return SiblingIdx > 0 ? this + SiblingIdx : 0;
+ return SiblingIdx > 0 ? this + SiblingIdx : nullptr;
}
+
// We know we are kept in a vector of contiguous entries, so we know
// we don't need to store our child pointer, if we have a child it will
// be the next entry in the list...
- DWARFDebugInfoEntryMinimal *getFirstChild() {
- return hasChildren() ? this + 1 : 0;
- }
const DWARFDebugInfoEntryMinimal *getFirstChild() const {
- return hasChildren() ? this + 1 : 0;
+ return hasChildren() ? this + 1 : nullptr;
}
- void setParent(DWARFDebugInfoEntryMinimal *parent) {
- if (parent) {
- // We know we are kept in a vector of contiguous entries, so we know
- // our parent will be some index behind "this".
- ParentIdx = this - parent;
- } else
- ParentIdx = 0;
- }
- void setSibling(DWARFDebugInfoEntryMinimal *sibling) {
- if (sibling) {
+ void setSibling(const DWARFDebugInfoEntryMinimal *Sibling) {
+ if (Sibling) {
// We know we are kept in a vector of contiguous entries, so we know
// our sibling will be some index after "this".
- SiblingIdx = sibling - this;
- sibling->setParent(getParent());
+ SiblingIdx = Sibling - this;
} else
SiblingIdx = 0;
}
return AbbrevDecl;
}
- uint32_t getAttributeValue(const DWARFCompileUnit *cu,
- const uint16_t attr, DWARFFormValue &formValue,
- uint32_t *end_attr_offset_ptr = 0) const;
+ bool getAttributeValue(const DWARFUnit *U, const uint16_t Attr,
+ DWARFFormValue &FormValue) const;
+
+ const char *getAttributeValueAsString(const DWARFUnit *U, const uint16_t Attr,
+ const char *FailValue) const;
+
+ uint64_t getAttributeValueAsAddress(const DWARFUnit *U, const uint16_t Attr,
+ uint64_t FailValue) const;
+
+ uint64_t getAttributeValueAsUnsignedConstant(const DWARFUnit *U,
+ const uint16_t Attr,
+ uint64_t FailValue) const;
+
+ uint64_t getAttributeValueAsReference(const DWARFUnit *U, const uint16_t Attr,
+ uint64_t FailValue) const;
- const char* getAttributeValueAsString(const DWARFCompileUnit* cu,
- const uint16_t attr,
- const char *fail_value) const;
+ uint64_t getAttributeValueAsSectionOffset(const DWARFUnit *U,
+ const uint16_t Attr,
+ uint64_t FailValue) const;
- uint64_t getAttributeValueAsUnsigned(const DWARFCompileUnit *cu,
- const uint16_t attr,
- uint64_t fail_value) const;
+ /// Retrieves DW_AT_low_pc and DW_AT_high_pc from CU.
+ /// Returns true if both attributes are present.
+ bool getLowAndHighPC(const DWARFUnit *U, uint64_t &LowPC,
+ uint64_t &HighPC) const;
- uint64_t getAttributeValueAsReference(const DWARFCompileUnit *cu,
- const uint16_t attr,
- uint64_t fail_value) const;
+ DWARFAddressRangesVector getAddressRanges(const DWARFUnit *U) const;
- int64_t getAttributeValueAsSigned(const DWARFCompileUnit* cu,
- const uint16_t attr,
- int64_t fail_value) const;
+ void collectChildrenAddressRanges(const DWARFUnit *U,
+ DWARFAddressRangesVector &Ranges) const;
+
+ bool addressRangeContainsAddress(const DWARFUnit *U,
+ const uint64_t Address) const;
+
+ /// If a DIE represents a subprogram (or inlined subroutine),
+ /// returns its mangled name (or short name, if mangled is missing).
+ /// This name may be fetched from specification or abstract origin
+ /// for this subprogram. Returns null if no name is found.
+ const char *
+ getSubroutineName(const DWARFUnit *U,
+ DILineInfoSpecifier::FunctionNameKind Kind) const;
+
+ /// Retrieves values of DW_AT_call_file, DW_AT_call_line and
+ /// DW_AT_call_column from DIE (or zeroes if they are missing).
+ void getCallerFrame(const DWARFUnit *U, uint32_t &CallFile,
+ uint32_t &CallLine, uint32_t &CallColumn) const;
+
+ /// Get inlined chain for a given address, rooted at the current DIE.
+ /// Returns empty chain if address is not contained in address range
+ /// of current DIE.
+ DWARFDebugInfoEntryInlinedChain
+ getInlinedChainForAddress(const DWARFUnit *U, const uint64_t Address) const;
+};
- void buildAddressRangeTable(const DWARFCompileUnit *cu,
- DWARFDebugAranges *debug_aranges) const;
+/// DWARFDebugInfoEntryInlinedChain - represents a chain of inlined_subroutine
+/// DIEs, (possibly ending with subprogram DIE), all of which are contained
+/// in some concrete inlined instance tree. Address range for each DIE
+/// (except the last DIE) in this chain is contained in address
+/// range for next DIE in the chain.
+struct DWARFDebugInfoEntryInlinedChain {
+ DWARFDebugInfoEntryInlinedChain() : U(nullptr) {}
+ SmallVector<DWARFDebugInfoEntryMinimal, 4> DIEs;
+ const DWARFUnit *U;
};
}
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