X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FDebugInfo%2FDWARFDebugInfoEntry.h;h=7e7efb98ba79063c643448cb3e092f1d33b76ab1;hb=409585877a7f418a8a5041e1b435fbfda4801742;hp=9003591cbe105760c7998a1acf5d275d0fc188a0;hpb=d6b89ef0fa17cf77677358a797934fa061564f5b;p=oota-llvm.git diff --git a/lib/DebugInfo/DWARFDebugInfoEntry.h b/lib/DebugInfo/DWARFDebugInfoEntry.h index 9003591cbe1..7e7efb98ba7 100644 --- a/lib/DebugInfo/DWARFDebugInfoEntry.h +++ b/lib/DebugInfo/DWARFDebugInfoEntry.h @@ -7,58 +7,49 @@ // //===----------------------------------------------------------------------===// -#ifndef LLVM_DEBUGINFO_DWARFDEBUGINFOENTRY_H -#define LLVM_DEBUGINFO_DWARFDEBUGINFOENTRY_H +#ifndef LLVM_LIB_DEBUGINFO_DWARFDEBUGINFOENTRY_H +#define LLVM_LIB_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; -class DWARFInlinedSubroutineChain; +struct DWARFDebugInfoEntryInlinedChain; /// DWARFDebugInfoEntryMinimal - A DIE with only the minimum required data. class DWARFDebugInfoEntryMinimal { /// Offset within the .debug_info of the start of this entry. uint32_t Offset; - /// How many to subtract from "this" to get the parent. - /// If zero this die has no parent. - uint32_t ParentIdx; - /// 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) {} + : Offset(0), SiblingIdx(0), AbbrevDecl(nullptr) {} - 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; + void dump(raw_ostream &OS, DWARFUnit *u, unsigned recurseDepth, + unsigned indent = 0) const; + void dumpAttribute(raw_ostream &OS, DWARFUnit *u, uint32_t *offset_ptr, + uint16_t attr, uint16_t form, unsigned indent = 0) const; - /// Extracts a debug info entry, which is a child of a given compile unit, + /// 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 DWARFCompileUnit *CU, const uint8_t *FixedFormSizes, - uint32_t *OffsetPtr); - - /// Extract a debug info entry for a given compile unit from the - /// .debug_info and .debug_abbrev data starting at the given offset. - /// If compile unit can't be parsed, returns false and doesn't change - /// OffsetPtr. - bool extract(const DWARFCompileUnit *CU, uint32_t *OffsetPtr); + bool extractFast(const DWARFUnit *U, uint32_t *OffsetPtr); uint32_t getTag() const { return AbbrevDecl ? AbbrevDecl->getTag() : 0; } - bool isNULL() const { return AbbrevDecl == 0; } + bool isNULL() const { return AbbrevDecl == nullptr; } /// Returns true if DIE represents a subprogram (not inlined). bool isSubprogramDIE() const; @@ -67,51 +58,26 @@ public: bool isSubroutineDIE() const; uint32_t getOffset() const { return Offset; } - uint32_t getNumAttributes() const { - return !isNULL() ? AbbrevDecl->getNumAttributes() : 0; - } 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; } @@ -120,60 +86,73 @@ public: 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; - const char* getAttributeValueAsString(const DWARFCompileUnit* cu, - const uint16_t attr, - const char *fail_value) const; + uint64_t getAttributeValueAsAddress(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; + uint64_t getAttributeValueAsUnsignedConstant(const DWARFUnit *U, + const uint16_t Attr, + uint64_t FailValue) const; - uint64_t getAttributeValueAsReference(const DWARFCompileUnit *cu, - const uint16_t attr, - uint64_t fail_value) const; + uint64_t getAttributeValueAsReference(const DWARFUnit *U, const uint16_t Attr, + uint64_t FailValue) const; - int64_t getAttributeValueAsSigned(const DWARFCompileUnit* cu, - const uint16_t attr, - int64_t fail_value) const; + uint64_t getAttributeValueAsSectionOffset(const DWARFUnit *U, + const uint16_t Attr, + uint64_t FailValue) const; + + uint64_t getRangesBaseAttribute(const DWARFUnit *U, uint64_t FailValue) const; /// Retrieves DW_AT_low_pc and DW_AT_high_pc from CU. /// Returns true if both attributes are present. - bool getLowAndHighPC(const DWARFCompileUnit *CU, - uint64_t &LowPC, uint64_t &HighPC) const; + bool getLowAndHighPC(const DWARFUnit *U, uint64_t &LowPC, + uint64_t &HighPC) const; + + DWARFAddressRangesVector getAddressRanges(const DWARFUnit *U) const; - void buildAddressRangeTable(const DWARFCompileUnit *CU, - DWARFDebugAranges *DebugAranges) const; + void collectChildrenAddressRanges(const DWARFUnit *U, + DWARFAddressRangesVector &Ranges) const; - bool addressRangeContainsAddress(const DWARFCompileUnit *CU, + 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 DWARFCompileUnit *CU) const; + const char *getSubroutineName(const DWARFUnit *U, DINameKind Kind) const; + + /// Return the DIE name resolving DW_AT_sepcification or + /// DW_AT_abstract_origin references if necessary. + /// Returns null if no name is found. + const char *getName(const DWARFUnit *U, DINameKind 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 DWARFCompileUnit *CU, uint32_t &CallFile, + void getCallerFrame(const DWARFUnit *U, uint32_t &CallFile, uint32_t &CallLine, uint32_t &CallColumn) const; - /// InlinedChain - 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. - typedef SmallVector InlinedChain; - /// 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. - InlinedChain getInlinedChainForAddress(const DWARFCompileUnit *CU, - const uint64_t Address) const; + DWARFDebugInfoEntryInlinedChain + getInlinedChainForAddress(const DWARFUnit *U, const uint64_t Address) 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 DIEs; + const DWARFUnit *U; }; }