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llvm-mirror/include/llvm/Support/Dwarf.h
Reid Kleckner 58c16635f7 Fix a bug where the DWARF emitter in the JIT was not initializing alignment 
bytes.  libgcc doesn't seem to mind, but if you pass this DWARF to GDB, it
doesn't like it.  

Also make the JIT memory manager to initialize it's memory to garbage in debug
mode, so that it's easier to find bugs like these in the future.

llvm-svn: 79674
2009-08-21 21:03:57 +00:00

589 lines
16 KiB
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//===-- llvm/Support/Dwarf.h ---Dwarf Constants------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains constants used for implementing Dwarf debug support. For
// Details on the Dwarf 3 specfication see DWARF Debugging Information Format
// V.3 reference manual http://dwarf.freestandards.org ,
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_DWARF_H
#define LLVM_SUPPORT_DWARF_H
namespace llvm {
//===----------------------------------------------------------------------===//
// Debug info constants.
enum {
LLVMDebugVersion = (7 << 16), // Current version of debug information.
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 .
//
// Do not mix the following two enumerations sets. DW_TAG_invalid changes the
// enumeration base type.
enum llvm_dwarf_constants {
// llvm mock tags
DW_TAG_invalid = ~0U, // Tag for invalid results.
DW_TAG_anchor = 0, // Tag for descriptor anchors.
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_user_base = 0x1000, // Recommended base for user tags.
DW_CIE_VERSION = 1, // Common frame information version.
DW_CIE_ID = 0xffffffff // Common frame information mark.
};
enum dwarf_constants {
DWARF_VERSION = 2,
// Tags
DW_TAG_array_type = 0x01,
DW_TAG_class_type = 0x02,
DW_TAG_entry_point = 0x03,
DW_TAG_enumeration_type = 0x04,
DW_TAG_formal_parameter = 0x05,
DW_TAG_imported_declaration = 0x08,
DW_TAG_label = 0x0a,
DW_TAG_lexical_block = 0x0b,
DW_TAG_member = 0x0d,
DW_TAG_pointer_type = 0x0f,
DW_TAG_reference_type = 0x10,
DW_TAG_compile_unit = 0x11,
DW_TAG_string_type = 0x12,
DW_TAG_structure_type = 0x13,
DW_TAG_subroutine_type = 0x15,
DW_TAG_typedef = 0x16,
DW_TAG_union_type = 0x17,
DW_TAG_unspecified_parameters = 0x18,
DW_TAG_variant = 0x19,
DW_TAG_common_block = 0x1a,
DW_TAG_common_inclusion = 0x1b,
DW_TAG_inheritance = 0x1c,
DW_TAG_inlined_subroutine = 0x1d,
DW_TAG_module = 0x1e,
DW_TAG_ptr_to_member_type = 0x1f,
DW_TAG_set_type = 0x20,
DW_TAG_subrange_type = 0x21,
DW_TAG_with_stmt = 0x22,
DW_TAG_access_declaration = 0x23,
DW_TAG_base_type = 0x24,
DW_TAG_catch_block = 0x25,
DW_TAG_const_type = 0x26,
DW_TAG_constant = 0x27,
DW_TAG_enumerator = 0x28,
DW_TAG_file_type = 0x29,
DW_TAG_friend = 0x2a,
DW_TAG_namelist = 0x2b,
DW_TAG_namelist_item = 0x2c,
DW_TAG_packed_type = 0x2d,
DW_TAG_subprogram = 0x2e,
DW_TAG_template_type_parameter = 0x2f,
DW_TAG_template_value_parameter = 0x30,
DW_TAG_thrown_type = 0x31,
DW_TAG_try_block = 0x32,
DW_TAG_variant_part = 0x33,
DW_TAG_variable = 0x34,
DW_TAG_volatile_type = 0x35,
DW_TAG_dwarf_procedure = 0x36,
DW_TAG_restrict_type = 0x37,
DW_TAG_interface_type = 0x38,
DW_TAG_namespace = 0x39,
DW_TAG_imported_module = 0x3a,
DW_TAG_unspecified_type = 0x3b,
DW_TAG_partial_unit = 0x3c,
DW_TAG_imported_unit = 0x3d,
DW_TAG_condition = 0x3f,
DW_TAG_shared_type = 0x40,
DW_TAG_lo_user = 0x4080,
DW_TAG_hi_user = 0xffff,
// Children flag
DW_CHILDREN_no = 0x00,
DW_CHILDREN_yes = 0x01,
// Attributes
DW_AT_sibling = 0x01,
DW_AT_location = 0x02,
DW_AT_name = 0x03,
DW_AT_ordering = 0x09,
DW_AT_byte_size = 0x0b,
DW_AT_bit_offset = 0x0c,
DW_AT_bit_size = 0x0d,
DW_AT_stmt_list = 0x10,
DW_AT_low_pc = 0x11,
DW_AT_high_pc = 0x12,
DW_AT_language = 0x13,
DW_AT_discr = 0x15,
DW_AT_discr_value = 0x16,
DW_AT_visibility = 0x17,
DW_AT_import = 0x18,
DW_AT_string_length = 0x19,
DW_AT_common_reference = 0x1a,
DW_AT_comp_dir = 0x1b,
DW_AT_const_value = 0x1c,
DW_AT_containing_type = 0x1d,
DW_AT_default_value = 0x1e,
DW_AT_inline = 0x20,
DW_AT_is_optional = 0x21,
DW_AT_lower_bound = 0x22,
DW_AT_producer = 0x25,
DW_AT_prototyped = 0x27,
DW_AT_return_addr = 0x2a,
DW_AT_start_scope = 0x2c,
DW_AT_bit_stride = 0x2e,
DW_AT_upper_bound = 0x2f,
DW_AT_abstract_origin = 0x31,
DW_AT_accessibility = 0x32,
DW_AT_address_class = 0x33,
DW_AT_artificial = 0x34,
DW_AT_base_types = 0x35,
DW_AT_calling_convention = 0x36,
DW_AT_count = 0x37,
DW_AT_data_member_location = 0x38,
DW_AT_decl_column = 0x39,
DW_AT_decl_file = 0x3a,
DW_AT_decl_line = 0x3b,
DW_AT_declaration = 0x3c,
DW_AT_discr_list = 0x3d,
DW_AT_encoding = 0x3e,
DW_AT_external = 0x3f,
DW_AT_frame_base = 0x40,
DW_AT_friend = 0x41,
DW_AT_identifier_case = 0x42,
DW_AT_macro_info = 0x43,
DW_AT_namelist_item = 0x44,
DW_AT_priority = 0x45,
DW_AT_segment = 0x46,
DW_AT_specification = 0x47,
DW_AT_static_link = 0x48,
DW_AT_type = 0x49,
DW_AT_use_location = 0x4a,
DW_AT_variable_parameter = 0x4b,
DW_AT_virtuality = 0x4c,
DW_AT_vtable_elem_location = 0x4d,
DW_AT_allocated = 0x4e,
DW_AT_associated = 0x4f,
DW_AT_data_location = 0x50,
DW_AT_byte_stride = 0x51,
DW_AT_entry_pc = 0x52,
DW_AT_use_UTF8 = 0x53,
DW_AT_extension = 0x54,
DW_AT_ranges = 0x55,
DW_AT_trampoline = 0x56,
DW_AT_call_column = 0x57,
DW_AT_call_file = 0x58,
DW_AT_call_line = 0x59,
DW_AT_description = 0x5a,
DW_AT_binary_scale = 0x5b,
DW_AT_decimal_scale = 0x5c,
DW_AT_small = 0x5d,
DW_AT_decimal_sign = 0x5e,
DW_AT_digit_count = 0x5f,
DW_AT_picture_string = 0x60,
DW_AT_mutable = 0x61,
DW_AT_threads_scaled = 0x62,
DW_AT_explicit = 0x63,
DW_AT_object_pointer = 0x64,
DW_AT_endianity = 0x65,
DW_AT_elemental = 0x66,
DW_AT_pure = 0x67,
DW_AT_recursive = 0x68,
DW_AT_MIPS_linkage_name = 0x2007,
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,
// Apple extensions.
DW_AT_APPLE_optimized = 0x3fe1,
DW_AT_APPLE_flags = 0x3fe2,
DW_AT_APPLE_isa = 0x3fe3,
DW_AT_APPLE_block = 0x3fe4,
DW_AT_APPLE_major_runtime_vers = 0x3fe5,
DW_AT_APPLE_runtime_class = 0x3fe6,
// Attribute form encodings
DW_FORM_addr = 0x01,
DW_FORM_block2 = 0x03,
DW_FORM_block4 = 0x04,
DW_FORM_data2 = 0x05,
DW_FORM_data4 = 0x06,
DW_FORM_data8 = 0x07,
DW_FORM_string = 0x08,
DW_FORM_block = 0x09,
DW_FORM_block1 = 0x0a,
DW_FORM_data1 = 0x0b,
DW_FORM_flag = 0x0c,
DW_FORM_sdata = 0x0d,
DW_FORM_strp = 0x0e,
DW_FORM_udata = 0x0f,
DW_FORM_ref_addr = 0x10,
DW_FORM_ref1 = 0x11,
DW_FORM_ref2 = 0x12,
DW_FORM_ref4 = 0x13,
DW_FORM_ref8 = 0x14,
DW_FORM_ref_udata = 0x15,
DW_FORM_indirect = 0x16,
// Operation encodings
DW_OP_addr = 0x03,
DW_OP_deref = 0x06,
DW_OP_const1u = 0x08,
DW_OP_const1s = 0x09,
DW_OP_const2u = 0x0a,
DW_OP_const2s = 0x0b,
DW_OP_const4u = 0x0c,
DW_OP_const4s = 0x0d,
DW_OP_const8u = 0x0e,
DW_OP_const8s = 0x0f,
DW_OP_constu = 0x10,
DW_OP_consts = 0x11,
DW_OP_dup = 0x12,
DW_OP_drop = 0x13,
DW_OP_over = 0x14,
DW_OP_pick = 0x15,
DW_OP_swap = 0x16,
DW_OP_rot = 0x17,
DW_OP_xderef = 0x18,
DW_OP_abs = 0x19,
DW_OP_and = 0x1a,
DW_OP_div = 0x1b,
DW_OP_minus = 0x1c,
DW_OP_mod = 0x1d,
DW_OP_mul = 0x1e,
DW_OP_neg = 0x1f,
DW_OP_not = 0x20,
DW_OP_or = 0x21,
DW_OP_plus = 0x22,
DW_OP_plus_uconst = 0x23,
DW_OP_shl = 0x24,
DW_OP_shr = 0x25,
DW_OP_shra = 0x26,
DW_OP_xor = 0x27,
DW_OP_skip = 0x2f,
DW_OP_bra = 0x28,
DW_OP_eq = 0x29,
DW_OP_ge = 0x2a,
DW_OP_gt = 0x2b,
DW_OP_le = 0x2c,
DW_OP_lt = 0x2d,
DW_OP_ne = 0x2e,
DW_OP_lit0 = 0x30,
DW_OP_lit1 = 0x31,
DW_OP_lit31 = 0x4f,
DW_OP_reg0 = 0x50,
DW_OP_reg1 = 0x51,
DW_OP_reg31 = 0x6f,
DW_OP_breg0 = 0x70,
DW_OP_breg1 = 0x71,
DW_OP_breg31 = 0x8f,
DW_OP_regx = 0x90,
DW_OP_fbreg = 0x91,
DW_OP_bregx = 0x92,
DW_OP_piece = 0x93,
DW_OP_deref_size = 0x94,
DW_OP_xderef_size = 0x95,
DW_OP_nop = 0x96,
DW_OP_push_object_address = 0x97,
DW_OP_call2 = 0x98,
DW_OP_call4 = 0x99,
DW_OP_call_ref = 0x9a,
DW_OP_form_tls_address = 0x9b,
DW_OP_call_frame_cfa = 0x9c,
DW_OP_lo_user = 0xe0,
DW_OP_hi_user = 0xff,
// Encoding attribute values
DW_ATE_address = 0x01,
DW_ATE_boolean = 0x02,
DW_ATE_complex_float = 0x03,
DW_ATE_float = 0x04,
DW_ATE_signed = 0x05,
DW_ATE_signed_char = 0x06,
DW_ATE_unsigned = 0x07,
DW_ATE_unsigned_char = 0x08,
DW_ATE_imaginary_float = 0x09,
DW_ATE_packed_decimal = 0x0a,
DW_ATE_numeric_string = 0x0b,
DW_ATE_edited = 0x0c,
DW_ATE_signed_fixed = 0x0d,
DW_ATE_unsigned_fixed = 0x0e,
DW_ATE_decimal_float = 0x0f,
DW_ATE_lo_user = 0x80,
DW_ATE_hi_user = 0xff,
// Decimal sign attribute values
DW_DS_unsigned = 0x01,
DW_DS_leading_overpunch = 0x02,
DW_DS_trailing_overpunch = 0x03,
DW_DS_leading_separate = 0x04,
DW_DS_trailing_separate = 0x05,
// Endianity attribute values
DW_END_default = 0x00,
DW_END_big = 0x01,
DW_END_little = 0x02,
DW_END_lo_user = 0x40,
DW_END_hi_user = 0xff,
// Accessibility codes
DW_ACCESS_public = 0x01,
DW_ACCESS_protected = 0x02,
DW_ACCESS_private = 0x03,
// Visibility codes
DW_VIS_local = 0x01,
DW_VIS_exported = 0x02,
DW_VIS_qualified = 0x03,
// Virtuality codes
DW_VIRTUALITY_none = 0x00,
DW_VIRTUALITY_virtual = 0x01,
DW_VIRTUALITY_pure_virtual = 0x02,
// Language names
DW_LANG_C89 = 0x0001,
DW_LANG_C = 0x0002,
DW_LANG_Ada83 = 0x0003,
DW_LANG_C_plus_plus = 0x0004,
DW_LANG_Cobol74 = 0x0005,
DW_LANG_Cobol85 = 0x0006,
DW_LANG_Fortran77 = 0x0007,
DW_LANG_Fortran90 = 0x0008,
DW_LANG_Pascal83 = 0x0009,
DW_LANG_Modula2 = 0x000a,
DW_LANG_Java = 0x000b,
DW_LANG_C99 = 0x000c,
DW_LANG_Ada95 = 0x000d,
DW_LANG_Fortran95 = 0x000e,
DW_LANG_PLI = 0x000f,
DW_LANG_ObjC = 0x0010,
DW_LANG_ObjC_plus_plus = 0x0011,
DW_LANG_UPC = 0x0012,
DW_LANG_D = 0x0013,
DW_LANG_lo_user = 0x8000,
DW_LANG_hi_user = 0xffff,
// Identifier case codes
DW_ID_case_sensitive = 0x00,
DW_ID_up_case = 0x01,
DW_ID_down_case = 0x02,
DW_ID_case_insensitive = 0x03,
// Calling convention codes
DW_CC_normal = 0x01,
DW_CC_program = 0x02,
DW_CC_nocall = 0x03,
DW_CC_lo_user = 0x40,
DW_CC_hi_user = 0xff,
// Inline codes
DW_INL_not_inlined = 0x00,
DW_INL_inlined = 0x01,
DW_INL_declared_not_inlined = 0x02,
DW_INL_declared_inlined = 0x03,
// Array ordering
DW_ORD_row_major = 0x00,
DW_ORD_col_major = 0x01,
// Discriminant descriptor values
DW_DSC_label = 0x00,
DW_DSC_range = 0x01,
// Line Number Standard Opcode Encodings
DW_LNS_copy = 0x01,
DW_LNS_advance_pc = 0x02,
DW_LNS_advance_line = 0x03,
DW_LNS_set_file = 0x04,
DW_LNS_set_column = 0x05,
DW_LNS_negate_stmt = 0x06,
DW_LNS_set_basic_block = 0x07,
DW_LNS_const_add_pc = 0x08,
DW_LNS_fixed_advance_pc = 0x09,
DW_LNS_set_prologue_end = 0x0a,
DW_LNS_set_epilogue_begin = 0x0b,
DW_LNS_set_isa = 0x0c,
// Line Number Extended Opcode Encodings
DW_LNE_end_sequence = 0x01,
DW_LNE_set_address = 0x02,
DW_LNE_define_file = 0x03,
DW_LNE_lo_user = 0x80,
DW_LNE_hi_user = 0xff,
// Macinfo Type Encodings
DW_MACINFO_define = 0x01,
DW_MACINFO_undef = 0x02,
DW_MACINFO_start_file = 0x03,
DW_MACINFO_end_file = 0x04,
DW_MACINFO_vendor_ext = 0xff,
// Call frame instruction encodings
DW_CFA_extended = 0x00,
DW_CFA_nop = 0x00,
DW_CFA_advance_loc = 0x40,
DW_CFA_offset = 0x80,
DW_CFA_restore = 0xc0,
DW_CFA_set_loc = 0x01,
DW_CFA_advance_loc1 = 0x02,
DW_CFA_advance_loc2 = 0x03,
DW_CFA_advance_loc4 = 0x04,
DW_CFA_offset_extended = 0x05,
DW_CFA_restore_extended = 0x06,
DW_CFA_undefined = 0x07,
DW_CFA_same_value = 0x08,
DW_CFA_register = 0x09,
DW_CFA_remember_state = 0x0a,
DW_CFA_restore_state = 0x0b,
DW_CFA_def_cfa = 0x0c,
DW_CFA_def_cfa_register = 0x0d,
DW_CFA_def_cfa_offset = 0x0e,
DW_CFA_def_cfa_expression = 0x0f,
DW_CFA_expression = 0x10,
DW_CFA_offset_extended_sf = 0x11,
DW_CFA_def_cfa_sf = 0x12,
DW_CFA_def_cfa_offset_sf = 0x13,
DW_CFA_val_offset = 0x14,
DW_CFA_val_offset_sf = 0x15,
DW_CFA_val_expression = 0x16,
DW_CFA_lo_user = 0x1c,
DW_CFA_hi_user = 0x3f,
DW_EH_PE_absptr = 0x00,
DW_EH_PE_omit = 0xff,
DW_EH_PE_uleb128 = 0x01,
DW_EH_PE_udata2 = 0x02,
DW_EH_PE_udata4 = 0x03,
DW_EH_PE_udata8 = 0x04,
DW_EH_PE_sleb128 = 0x09,
DW_EH_PE_sdata2 = 0x0A,
DW_EH_PE_sdata4 = 0x0B,
DW_EH_PE_sdata8 = 0x0C,
DW_EH_PE_signed = 0x08,
DW_EH_PE_pcrel = 0x10,
DW_EH_PE_textrel = 0x20,
DW_EH_PE_datarel = 0x30,
DW_EH_PE_funcrel = 0x40,
DW_EH_PE_aligned = 0x50,
DW_EH_PE_indirect = 0x80
};
/// TagString - Return the string for the specified tag.
///
const char *TagString(unsigned Tag);
/// ChildrenString - Return the string for the specified children flag.
///
const char *ChildrenString(unsigned Children);
/// AttributeString - Return the string for the specified attribute.
///
const char *AttributeString(unsigned Attribute);
/// FormEncodingString - Return the string for the specified form encoding.
///
const char *FormEncodingString(unsigned Encoding);
/// OperationEncodingString - Return the string for the specified operation
/// encoding.
const char *OperationEncodingString(unsigned Encoding);
/// AttributeEncodingString - Return the string for the specified attribute
/// encoding.
const char *AttributeEncodingString(unsigned Encoding);
/// DecimalSignString - Return the string for the specified decimal sign
/// attribute.
const char *DecimalSignString(unsigned Sign);
/// EndianityString - Return the string for the specified endianity.
///
const char *EndianityString(unsigned Endian);
/// AccessibilityString - Return the string for the specified accessibility.
///
const char *AccessibilityString(unsigned Access);
/// VisibilityString - Return the string for the specified visibility.
///
const char *VisibilityString(unsigned Visibility);
/// VirtualityString - Return the string for the specified virtuality.
///
const char *VirtualityString(unsigned Virtuality);
/// LanguageString - Return the string for the specified language.
///
const char *LanguageString(unsigned Language);
/// CaseString - Return the string for the specified identifier case.
///
const char *CaseString(unsigned Case);
/// ConventionString - Return the string for the specified calling convention.
///
const char *ConventionString(unsigned Convention);
/// InlineCodeString - Return the string for the specified inline code.
///
const char *InlineCodeString(unsigned Code);
/// ArrayOrderString - Return the string for the specified array order.
///
const char *ArrayOrderString(unsigned Order);
/// DiscriminantString - Return the string for the specified discriminant
/// descriptor.
const char *DiscriminantString(unsigned Discriminant);
/// LNStandardString - Return the string for the specified line number standard.
///
const char *LNStandardString(unsigned Standard);
/// LNExtendedString - Return the string for the specified line number extended
/// opcode encodings.
const char *LNExtendedString(unsigned Encoding);
/// MacinfoString - Return the string for the specified macinfo type encodings.
///
const char *MacinfoString(unsigned Encoding);
/// CallFrameString - Return the string for the specified call frame instruction
/// encodings.
const char *CallFrameString(unsigned Encoding);
} // End of namespace dwarf
} // End of namespace llvm
#endif
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