diff options
Diffstat (limited to 'include/llvm/BinaryFormat/Dwarf.h')
| -rw-r--r-- | include/llvm/BinaryFormat/Dwarf.h | 125 |
1 files changed, 86 insertions, 39 deletions
diff --git a/include/llvm/BinaryFormat/Dwarf.h b/include/llvm/BinaryFormat/Dwarf.h index 76d9c365c0a8..1c6aee48661c 100644 --- a/include/llvm/BinaryFormat/Dwarf.h +++ b/include/llvm/BinaryFormat/Dwarf.h @@ -46,6 +46,11 @@ enum LLVMConstants : uint32_t { DW_VIRTUALITY_invalid = ~0U, // Virtuality for invalid results. DW_MACINFO_invalid = ~0U, // Macinfo type for invalid results. + // Special values for an initial length field. + DW_LENGTH_lo_reserved = 0xfffffff0, // Lower bound of the reserved range. + DW_LENGTH_DWARF64 = 0xffffffff, // Indicator of 64-bit DWARF format. + DW_LENGTH_hi_reserved = 0xffffffff, // Upper bound of the reserved range. + // Other constants. DWARF_VERSION = 4, // Default dwarf version we output. DW_PUBTYPES_VERSION = 2, // Section version number for .debug_pubtypes. @@ -75,7 +80,7 @@ const uint64_t DW64_CIE_ID = UINT64_MAX; const uint32_t DW_INVALID_OFFSET = UINT32_MAX; enum Tag : uint16_t { -#define HANDLE_DW_TAG(ID, NAME, VERSION, VENDOR) DW_TAG_##NAME = ID, +#define HANDLE_DW_TAG(ID, NAME, VERSION, VENDOR, KIND) DW_TAG_##NAME = ID, #include "llvm/BinaryFormat/Dwarf.def" DW_TAG_lo_user = 0x4080, DW_TAG_hi_user = 0xffff, @@ -84,29 +89,12 @@ enum Tag : uint16_t { inline bool isType(Tag T) { switch (T) { - case DW_TAG_array_type: - case DW_TAG_class_type: - case DW_TAG_interface_type: - case DW_TAG_enumeration_type: - case DW_TAG_pointer_type: - case DW_TAG_reference_type: - case DW_TAG_rvalue_reference_type: - case DW_TAG_string_type: - case DW_TAG_structure_type: - case DW_TAG_subroutine_type: - case DW_TAG_union_type: - case DW_TAG_ptr_to_member_type: - case DW_TAG_set_type: - case DW_TAG_subrange_type: - case DW_TAG_base_type: - case DW_TAG_const_type: - case DW_TAG_file_type: - case DW_TAG_packed_type: - case DW_TAG_volatile_type: - case DW_TAG_typedef: - return true; default: return false; +#define HANDLE_DW_TAG(ID, NAME, VERSION, VENDOR, KIND) \ + case DW_TAG_##NAME: \ + return (KIND == DW_KIND_TYPE); +#include "llvm/BinaryFormat/Dwarf.def" } } @@ -129,9 +117,10 @@ enum LocationAtom { #include "llvm/BinaryFormat/Dwarf.def" DW_OP_lo_user = 0xe0, DW_OP_hi_user = 0xff, - DW_OP_LLVM_fragment = 0x1000, ///< Only used in LLVM metadata. - DW_OP_LLVM_convert = 0x1001, ///< Only used in LLVM metadata. - DW_OP_LLVM_tag_offset = 0x1002, ///< Only used in LLVM metadata. + DW_OP_LLVM_fragment = 0x1000, ///< Only used in LLVM metadata. + DW_OP_LLVM_convert = 0x1001, ///< Only used in LLVM metadata. + DW_OP_LLVM_tag_offset = 0x1002, ///< Only used in LLVM metadata. + DW_OP_LLVM_entry_value = 0x1003, ///< Only used in LLVM metadata. }; enum TypeKind : uint8_t { @@ -192,6 +181,59 @@ enum SourceLanguage { DW_LANG_hi_user = 0xffff }; +inline bool isCPlusPlus(SourceLanguage S) { + // Deliberately enumerate all the language options so we get a warning when + // new language options are added (-Wswitch) that'll hopefully help keep this + // switch up-to-date when new C++ versions are added. + switch (S) { + case DW_LANG_C_plus_plus: + case DW_LANG_C_plus_plus_03: + case DW_LANG_C_plus_plus_11: + case DW_LANG_C_plus_plus_14: + return true; + case DW_LANG_C89: + case DW_LANG_C: + case DW_LANG_Ada83: + case DW_LANG_Cobol74: + case DW_LANG_Cobol85: + case DW_LANG_Fortran77: + case DW_LANG_Fortran90: + case DW_LANG_Pascal83: + case DW_LANG_Modula2: + case DW_LANG_Java: + case DW_LANG_C99: + case DW_LANG_Ada95: + case DW_LANG_Fortran95: + case DW_LANG_PLI: + case DW_LANG_ObjC: + case DW_LANG_ObjC_plus_plus: + case DW_LANG_UPC: + case DW_LANG_D: + case DW_LANG_Python: + case DW_LANG_OpenCL: + case DW_LANG_Go: + case DW_LANG_Modula3: + case DW_LANG_Haskell: + case DW_LANG_OCaml: + case DW_LANG_Rust: + case DW_LANG_C11: + case DW_LANG_Swift: + case DW_LANG_Julia: + case DW_LANG_Dylan: + case DW_LANG_Fortran03: + case DW_LANG_Fortran08: + case DW_LANG_RenderScript: + case DW_LANG_BLISS: + case DW_LANG_Mips_Assembler: + case DW_LANG_GOOGLE_RenderScript: + case DW_LANG_BORLAND_Delphi: + case DW_LANG_lo_user: + case DW_LANG_hi_user: + return false; + } + llvm_unreachable("Invalid source language"); +} + enum CaseSensitivity { // Identifier case codes DW_ID_case_sensitive = 0x00, @@ -267,11 +309,17 @@ enum MacroEntryType { }; /// DWARF v5 range list entry encoding values. -enum RangeListEntries { +enum RnglistEntries { #define HANDLE_DW_RLE(ID, NAME) DW_RLE_##NAME = ID, #include "llvm/BinaryFormat/Dwarf.def" }; +/// DWARF v5 loc list entry encoding values. +enum LoclistEntries { +#define HANDLE_DW_LLE(ID, NAME) DW_LLE_##NAME = ID, +#include "llvm/BinaryFormat/Dwarf.def" +}; + /// Call frame instruction encodings. enum CallFrameInfo { #define HANDLE_DW_CFA(ID, NAME) DW_CFA_##NAME = ID, @@ -307,19 +355,6 @@ enum Constants { DW_EH_PE_indirect = 0x80 }; -/// Constants for location lists in DWARF v5. -enum LocationListEntry : unsigned char { - DW_LLE_end_of_list = 0x00, - DW_LLE_base_addressx = 0x01, - DW_LLE_startx_endx = 0x02, - DW_LLE_startx_length = 0x03, - DW_LLE_offset_pair = 0x04, - DW_LLE_default_location = 0x05, - DW_LLE_base_address = 0x06, - DW_LLE_start_end = 0x07, - DW_LLE_start_length = 0x08 -}; - /// Constants for the DW_APPLE_PROPERTY_attributes attribute. /// Keep this list in sync with clang's DeclSpec.h ObjCPropertyAttributeKind! enum ApplePropertyAttributes { @@ -434,6 +469,7 @@ StringRef LNStandardString(unsigned Standard); StringRef LNExtendedString(unsigned Encoding); StringRef MacinfoString(unsigned Encoding); StringRef RangeListEncodingString(unsigned Encoding); +StringRef LocListEncodingString(unsigned Encoding); StringRef CallFrameString(unsigned Encoding, Triple::ArchType Arch); StringRef ApplePropertyString(unsigned); StringRef UnitTypeString(unsigned); @@ -525,6 +561,17 @@ struct FormParams { explicit operator bool() const { return Version && AddrSize; } }; +/// Get the byte size of the unit length field depending on the DWARF format. +inline uint8_t getUnitLengthFieldByteSize(DwarfFormat Format) { + switch (Format) { + case DwarfFormat::DWARF32: + return 4; + case DwarfFormat::DWARF64: + return 12; + } + llvm_unreachable("Invalid Format value"); +} + /// Get the fixed byte size for a given form. /// /// If the form has a fixed byte size, then an Optional with a value will be |