#ifndef LLVM_SUPPORT_DWARF_H
#define LLVM_SUPPORT_DWARF_H
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/DataTypes.h"
+
namespace llvm {
//===----------------------------------------------------------------------===//
// Debug info constants.
-enum {
- LLVMDebugVersion = (9 << 16), // Current version of debug information.
- LLVMDebugVersion8 = (8 << 16), // Cconstant for version 8.
- LLVMDebugVersion7 = (7 << 16), // Constant for version 7.
- LLVMDebugVersion6 = (6 << 16), // Constant for version 6.
- LLVMDebugVersion5 = (5 << 16), // Constant for version 5.
- LLVMDebugVersion4 = (4 << 16), // Constant for version 4.
- LLVMDebugVersionMask = 0xffff0000 // Mask for version number.
+enum LLVM_ENUM_INT_TYPE(uint32_t) {
+ LLVMDebugVersion = (12 << 16), // Current version of debug information.
+ LLVMDebugVersion11 = (11 << 16), // Constant for version 11.
+ LLVMDebugVersion10 = (10 << 16), // Constant for version 10.
+ LLVMDebugVersion9 = (9 << 16), // Constant for version 9.
+ LLVMDebugVersion8 = (8 << 16), // Constant for version 8.
+ LLVMDebugVersion7 = (7 << 16), // Constant for version 7.
+ LLVMDebugVersion6 = (6 << 16), // Constant for version 6.
+ LLVMDebugVersion5 = (5 << 16), // Constant for version 5.
+ LLVMDebugVersion4 = (4 << 16), // Constant for version 4.
+ LLVMDebugVersionMask = 0xffff0000 // Mask for version number.
};
namespace dwarf {
//===----------------------------------------------------------------------===//
-// Dwarf constants as gleaned from the DWARF Debugging Information Format V.3
-// reference manual http://dwarf.freestandards.org .
+// Dwarf constants as gleaned from the DWARF Debugging Information Format V.4
+// reference manual http://dwarf.freestandards.org.
//
// Do not mix the following two enumerations sets. DW_TAG_invalid changes the
// enumeration base type.
-enum llvm_dwarf_constants {
+enum LLVMConstants LLVM_ENUM_INT_TYPE(uint32_t) {
// llvm mock tags
- DW_TAG_invalid = ~0U, // Tag for invalid results.
+ DW_TAG_invalid = ~0U, // Tag for invalid results.
- DW_TAG_auto_variable = 0x100, // Tag for local (auto) variables.
- DW_TAG_arg_variable = 0x101, // Tag for argument variables.
- DW_TAG_return_variable = 0x102, // Tag for return variables.
- DW_TAG_vector_type = 0x103, // Tag for vector types.
+ DW_TAG_auto_variable = 0x100, // Tag for local (auto) variables.
+ DW_TAG_arg_variable = 0x101, // Tag for argument variables.
- DW_TAG_user_base = 0x1000, // Recommended base for user tags.
+ DW_TAG_user_base = 0x1000, // Recommended base for user tags.
- DW_CIE_VERSION = 1, // Common frame information version.
- DW_CIE_ID = 0xffffffff // Common frame information mark.
+ DWARF_VERSION = 4, // Default dwarf version we output.
+ DW_CIE_VERSION = 1, // Common frame information version.
+ DW_PUBTYPES_VERSION = 2, // Section version number for .debug_pubtypes.
+ DW_PUBNAMES_VERSION = 2, // Section version number for .debug_pubnames.
+ DW_ARANGES_VERSION = 2 // Section version number for .debug_aranges.
};
-enum dwarf_constants {
- DWARF_VERSION = 2,
+// Special ID values that distinguish a CIE from a FDE in DWARF CFI.
+// Not inside an enum because a 64-bit value is needed.
+const uint32_t DW_CIE_ID = UINT32_MAX;
+const uint64_t DW64_CIE_ID = UINT64_MAX;
+enum Constants {
// Tags
DW_TAG_array_type = 0x01,
DW_TAG_class_type = 0x02,
DW_TAG_imported_unit = 0x3d,
DW_TAG_condition = 0x3f,
DW_TAG_shared_type = 0x40,
- DW_TAG_rvalue_reference_type = 0x41,
+ DW_TAG_type_unit = 0x41,
+ DW_TAG_rvalue_reference_type = 0x42,
+ DW_TAG_template_alias = 0x43,
+ DW_TAG_MIPS_loop = 0x4081,
+ DW_TAG_format_label = 0x4101,
+ DW_TAG_function_template = 0x4102,
+ DW_TAG_class_template = 0x4103,
+ DW_TAG_GNU_template_template_param = 0x4106,
+ DW_TAG_GNU_template_parameter_pack = 0x4107,
+ DW_TAG_GNU_formal_parameter_pack = 0x4108,
DW_TAG_lo_user = 0x4080,
+ DW_TAG_APPLE_property = 0x4200,
DW_TAG_hi_user = 0xffff,
// Children flag
DW_AT_elemental = 0x66,
DW_AT_pure = 0x67,
DW_AT_recursive = 0x68,
+ DW_AT_signature = 0x69,
+ DW_AT_main_subprogram = 0x6a,
+ DW_AT_data_bit_offset = 0x6b,
+ DW_AT_const_expr = 0x6c,
+ DW_AT_enum_class = 0x6d,
+ DW_AT_linkage_name = 0x6e,
+
+ DW_AT_lo_user = 0x2000,
+ DW_AT_hi_user = 0x3fff,
+
+ DW_AT_MIPS_loop_begin = 0x2002,
+ DW_AT_MIPS_tail_loop_begin = 0x2003,
+ DW_AT_MIPS_epilog_begin = 0x2004,
+ DW_AT_MIPS_loop_unroll_factor = 0x2005,
+ DW_AT_MIPS_software_pipeline_depth = 0x2006,
DW_AT_MIPS_linkage_name = 0x2007,
- DW_AT_sf_names = 0x2101,
+ DW_AT_MIPS_stride = 0x2008,
+ DW_AT_MIPS_abstract_name = 0x2009,
+ DW_AT_MIPS_clone_origin = 0x200a,
+ DW_AT_MIPS_has_inlines = 0x200b,
+ DW_AT_MIPS_stride_byte = 0x200c,
+ DW_AT_MIPS_stride_elem = 0x200d,
+ DW_AT_MIPS_ptr_dopetype = 0x200e,
+ DW_AT_MIPS_allocatable_dopetype = 0x200f,
+ DW_AT_MIPS_assumed_shape_dopetype = 0x2010,
+
+ // This one appears to have only been implemented by Open64 for
+ // fortran and may conflict with other extensions.
+ DW_AT_MIPS_assumed_size = 0x2011,
+
+ // GNU extensions
+ DW_AT_sf_names = 0x2101,
DW_AT_src_info = 0x2102,
DW_AT_mac_info = 0x2103,
DW_AT_src_coords = 0x2104,
DW_AT_body_begin = 0x2105,
DW_AT_body_end = 0x2106,
DW_AT_GNU_vector = 0x2107,
- DW_AT_lo_user = 0x2000,
- DW_AT_hi_user = 0x3fff,
+ DW_AT_GNU_template_name = 0x2110,
+
+ DW_AT_GNU_odr_signature = 0x210f,
+
+ // Extensions for Fission proposal.
+ DW_AT_GNU_dwo_name = 0x2130,
+ DW_AT_GNU_dwo_id = 0x2131,
+ DW_AT_GNU_ranges_base = 0x2132,
+ DW_AT_GNU_addr_base = 0x2133,
+ DW_AT_GNU_pubnames = 0x2134,
+ DW_AT_GNU_pubtypes = 0x2135,
// Apple extensions.
DW_AT_APPLE_optimized = 0x3fe1,
DW_AT_APPLE_property_getter = 0x3fe9,
DW_AT_APPLE_property_setter = 0x3fea,
DW_AT_APPLE_property_attribute = 0x3feb,
+ DW_AT_APPLE_objc_complete_type = 0x3fec,
+ DW_AT_APPLE_property = 0x3fed,
// Attribute form encodings
DW_FORM_addr = 0x01,
DW_FORM_ref8 = 0x14,
DW_FORM_ref_udata = 0x15,
DW_FORM_indirect = 0x16,
+ DW_FORM_sec_offset = 0x17,
+ DW_FORM_exprloc = 0x18,
+ DW_FORM_flag_present = 0x19,
+ DW_FORM_ref_sig8 = 0x20,
+
+ // Extensions for Fission proposal
+ DW_FORM_GNU_addr_index = 0x1f01,
+ DW_FORM_GNU_str_index = 0x1f02,
// Operation encodings
DW_OP_addr = 0x03,
DW_OP_call_ref = 0x9a,
DW_OP_form_tls_address = 0x9b,
DW_OP_call_frame_cfa = 0x9c,
+ DW_OP_bit_piece = 0x9d,
+ DW_OP_implicit_value = 0x9e,
+ DW_OP_stack_value = 0x9f,
DW_OP_lo_user = 0xe0,
DW_OP_hi_user = 0xff,
+ // Extensions for Fission proposal.
+ DW_OP_GNU_addr_index = 0xfb,
+ DW_OP_GNU_const_index = 0xfc,
+
// Encoding attribute values
DW_ATE_address = 0x01,
DW_ATE_boolean = 0x02,
DW_ATE_signed_fixed = 0x0d,
DW_ATE_unsigned_fixed = 0x0e,
DW_ATE_decimal_float = 0x0f,
+ DW_ATE_UTF = 0x10,
DW_ATE_lo_user = 0x80,
DW_ATE_hi_user = 0xff,
DW_LANG_ObjC_plus_plus = 0x0011,
DW_LANG_UPC = 0x0012,
DW_LANG_D = 0x0013,
+ DW_LANG_Python = 0x0014,
DW_LANG_lo_user = 0x8000,
+ DW_LANG_Mips_Assembler = 0x8001,
DW_LANG_hi_user = 0xffff,
// Identifier case codes
DW_LNE_end_sequence = 0x01,
DW_LNE_set_address = 0x02,
DW_LNE_define_file = 0x03,
+ DW_LNE_set_discriminator = 0x04,
DW_LNE_lo_user = 0x80,
DW_LNE_hi_user = 0xff,
DW_CFA_val_offset = 0x14,
DW_CFA_val_offset_sf = 0x15,
DW_CFA_val_expression = 0x16,
+ DW_CFA_MIPS_advance_loc8 = 0x1d,
+ DW_CFA_GNU_window_save = 0x2d,
+ DW_CFA_GNU_args_size = 0x2e,
DW_CFA_lo_user = 0x1c,
DW_CFA_hi_user = 0x3f,
/// CallFrameString - Return the string for the specified call frame instruction
/// encodings.
const char *CallFrameString(unsigned Encoding);
+
+// Constants for the DWARF5 Accelerator Table Proposal
+enum AcceleratorTable {
+ // Data layout descriptors.
+ DW_ATOM_null = 0u, // Marker as the end of a list of atoms.
+ DW_ATOM_die_offset = 1u, // DIE offset in the debug_info section.
+ DW_ATOM_cu_offset = 2u, // Offset of the compile unit header that contains the
+ // item in question.
+ DW_ATOM_die_tag = 3u, // A tag entry.
+ DW_ATOM_type_flags = 4u, // Set of flags for a type.
+
+ // DW_ATOM_type_flags values.
+
+ // Always set for C++, only set for ObjC if this is the @implementation for a
+ // class.
+ DW_FLAG_type_implementation = 2u,
+
+ // Hash functions.
+
+ // Daniel J. Bernstein hash.
+ DW_hash_function_djb = 0u
+};
+
+/// AtomTypeString - Return the string for the specified Atom type.
+const char *AtomTypeString(unsigned Atom);
+
+// Constants for the GNU pubnames/pubtypes extensions supporting gdb index.
+enum GDBIndexEntryKind {
+ GIEK_NONE,
+ GIEK_TYPE,
+ GIEK_VARIABLE,
+ GIEK_FUNCTION,
+ GIEK_OTHER,
+ GIEK_UNUSED5,
+ GIEK_UNUSED6,
+ GIEK_UNUSED7
+};
+
+const char *GDBIndexEntryKindString(GDBIndexEntryKind Kind);
+
+enum GDBIndexEntryLinkage {
+ GIEL_EXTERNAL,
+ GIEL_STATIC
+};
+
+const char *GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage);
+
+/// The gnu_pub* kind looks like:
+///
+/// 0-3 reserved
+/// 4-6 symbol kind
+/// 7 0 == global, 1 == static
+///
+/// A gdb_index descriptor includes the above kind, shifted 24 bits up with the
+/// offset of the cu within the debug_info section stored in those 24 bits.
+struct PubIndexEntryDescriptor {
+ GDBIndexEntryKind Kind;
+ GDBIndexEntryLinkage Linkage;
+ PubIndexEntryDescriptor(GDBIndexEntryKind Kind, GDBIndexEntryLinkage Linkage)
+ : Kind(Kind), Linkage(Linkage) {}
+ /* implicit */ PubIndexEntryDescriptor(GDBIndexEntryKind Kind)
+ : Kind(Kind), Linkage(GIEL_EXTERNAL) {}
+ explicit PubIndexEntryDescriptor(uint8_t Value)
+ : Kind(static_cast<GDBIndexEntryKind>((Value & KIND_MASK) >>
+ KIND_OFFSET)),
+ Linkage(static_cast<GDBIndexEntryLinkage>((Value & LINKAGE_MASK) >>
+ LINKAGE_OFFSET)) {}
+ uint8_t toBits() { return Kind << KIND_OFFSET | Linkage << LINKAGE_OFFSET; }
+
+private:
+ enum {
+ KIND_OFFSET = 4,
+ KIND_MASK = 7 << KIND_OFFSET,
+ LINKAGE_OFFSET = 7,
+ LINKAGE_MASK = 1 << LINKAGE_OFFSET
+ };
+};
+
} // End of namespace dwarf
} // End of namespace llvm
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