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-rw-r--r--llvm/lib/CodeGen/DwarfWriter.cpp913
1 files changed, 357 insertions, 556 deletions
diff --git a/llvm/lib/CodeGen/DwarfWriter.cpp b/llvm/lib/CodeGen/DwarfWriter.cpp
index c714cad5ce0..fee0a654d30 100644
--- a/llvm/lib/CodeGen/DwarfWriter.cpp
+++ b/llvm/lib/CodeGen/DwarfWriter.cpp
@@ -26,563 +26,338 @@
#include <iostream>
using namespace llvm;
+using namespace dwarf;
static cl::opt<bool>
DwarfVerbose("dwarf-verbose", cl::Hidden,
cl::desc("Add comments to Dwarf directives."));
+namespace llvm {
+
//===----------------------------------------------------------------------===//
+// Forward declarations.
+//
+class CompileUnit;
+class DIE;
-/// TagString - Return the string for the specified tag.
-///
-static const char *TagString(unsigned Tag) {
- switch(Tag) {
- case DW_TAG_array_type: return "TAG_array_type";
- case DW_TAG_class_type: return "TAG_class_type";
- case DW_TAG_entry_point: return "TAG_entry_point";
- case DW_TAG_enumeration_type: return "TAG_enumeration_type";
- case DW_TAG_formal_parameter: return "TAG_formal_parameter";
- case DW_TAG_imported_declaration: return "TAG_imported_declaration";
- case DW_TAG_label: return "TAG_label";
- case DW_TAG_lexical_block: return "TAG_lexical_block";
- case DW_TAG_member: return "TAG_member";
- case DW_TAG_pointer_type: return "TAG_pointer_type";
- case DW_TAG_reference_type: return "TAG_reference_type";
- case DW_TAG_compile_unit: return "TAG_compile_unit";
- case DW_TAG_string_type: return "TAG_string_type";
- case DW_TAG_structure_type: return "TAG_structure_type";
- case DW_TAG_subroutine_type: return "TAG_subroutine_type";
- case DW_TAG_typedef: return "TAG_typedef";
- case DW_TAG_union_type: return "TAG_union_type";
- case DW_TAG_unspecified_parameters: return "TAG_unspecified_parameters";
- case DW_TAG_variant: return "TAG_variant";
- case DW_TAG_common_block: return "TAG_common_block";
- case DW_TAG_common_inclusion: return "TAG_common_inclusion";
- case DW_TAG_inheritance: return "TAG_inheritance";
- case DW_TAG_inlined_subroutine: return "TAG_inlined_subroutine";
- case DW_TAG_module: return "TAG_module";
- case DW_TAG_ptr_to_member_type: return "TAG_ptr_to_member_type";
- case DW_TAG_set_type: return "TAG_set_type";
- case DW_TAG_subrange_type: return "TAG_subrange_type";
- case DW_TAG_with_stmt: return "TAG_with_stmt";
- case DW_TAG_access_declaration: return "TAG_access_declaration";
- case DW_TAG_base_type: return "TAG_base_type";
- case DW_TAG_catch_block: return "TAG_catch_block";
- case DW_TAG_const_type: return "TAG_const_type";
- case DW_TAG_constant: return "TAG_constant";
- case DW_TAG_enumerator: return "TAG_enumerator";
- case DW_TAG_file_type: return "TAG_file_type";
- case DW_TAG_friend: return "TAG_friend";
- case DW_TAG_namelist: return "TAG_namelist";
- case DW_TAG_namelist_item: return "TAG_namelist_item";
- case DW_TAG_packed_type: return "TAG_packed_type";
- case DW_TAG_subprogram: return "TAG_subprogram";
- case DW_TAG_template_type_parameter: return "TAG_template_type_parameter";
- case DW_TAG_template_value_parameter: return "TAG_template_value_parameter";
- case DW_TAG_thrown_type: return "TAG_thrown_type";
- case DW_TAG_try_block: return "TAG_try_block";
- case DW_TAG_variant_part: return "TAG_variant_part";
- case DW_TAG_variable: return "TAG_variable";
- case DW_TAG_volatile_type: return "TAG_volatile_type";
- case DW_TAG_dwarf_procedure: return "TAG_dwarf_procedure";
- case DW_TAG_restrict_type: return "TAG_restrict_type";
- case DW_TAG_interface_type: return "TAG_interface_type";
- case DW_TAG_namespace: return "TAG_namespace";
- case DW_TAG_imported_module: return "TAG_imported_module";
- case DW_TAG_unspecified_type: return "TAG_unspecified_type";
- case DW_TAG_partial_unit: return "TAG_partial_unit";
- case DW_TAG_imported_unit: return "TAG_imported_unit";
- case DW_TAG_condition: return "TAG_condition";
- case DW_TAG_shared_type: return "TAG_shared_type";
- case DW_TAG_lo_user: return "TAG_lo_user";
- case DW_TAG_hi_user: return "TAG_hi_user";
+//===----------------------------------------------------------------------===//
+// DIEAbbrevData - Dwarf abbreviation data, describes the one attribute of a
+// Dwarf abbreviation.
+class DIEAbbrevData {
+private:
+ unsigned Attribute; // Dwarf attribute code.
+ unsigned Form; // Dwarf form code.
+
+public:
+ DIEAbbrevData(unsigned A, unsigned F)
+ : Attribute(A)
+ , Form(F)
+ {}
+
+ // Accessors
+ unsigned getAttribute() const { return Attribute; }
+ unsigned getForm() const { return Form; }
+
+ /// operator== - Used by DIEAbbrev to locate entry.
+ ///
+ bool operator==(const DIEAbbrevData &DAD) const {
+ return Attribute == DAD.Attribute && Form == DAD.Form;
}
- assert(0 && "Unknown Dwarf Tag");
- return "";
-}
-/// ChildrenString - Return the string for the specified children flag.
-///
-static const char *ChildrenString(unsigned Children) {
- switch(Children) {
- case DW_CHILDREN_no: return "CHILDREN_no";
- case DW_CHILDREN_yes: return "CHILDREN_yes";
+ /// operator!= - Used by DIEAbbrev to locate entry.
+ ///
+ bool operator!=(const DIEAbbrevData &DAD) const {
+ return Attribute != DAD.Attribute || Form != DAD.Form;
}
- assert(0 && "Unknown Dwarf ChildrenFlag");
- return "";
-}
-
-/// AttributeString - Return the string for the specified attribute.
-///
-static const char *AttributeString(unsigned Attribute) {
- switch(Attribute) {
- case DW_AT_sibling: return "AT_sibling";
- case DW_AT_location: return "AT_location";
- case DW_AT_name: return "AT_name";
- case DW_AT_ordering: return "AT_ordering";
- case DW_AT_byte_size: return "AT_byte_size";
- case DW_AT_bit_offset: return "AT_bit_offset";
- case DW_AT_bit_size: return "AT_bit_size";
- case DW_AT_stmt_list: return "AT_stmt_list";
- case DW_AT_low_pc: return "AT_low_pc";
- case DW_AT_high_pc: return "AT_high_pc";
- case DW_AT_language: return "AT_language";
- case DW_AT_discr: return "AT_discr";
- case DW_AT_discr_value: return "AT_discr_value";
- case DW_AT_visibility: return "AT_visibility";
- case DW_AT_import: return "AT_import";
- case DW_AT_string_length: return "AT_string_length";
- case DW_AT_common_reference: return "AT_common_reference";
- case DW_AT_comp_dir: return "AT_comp_dir";
- case DW_AT_const_value: return "AT_const_value";
- case DW_AT_containing_type: return "AT_containing_type";
- case DW_AT_default_value: return "AT_default_value";
- case DW_AT_inline: return "AT_inline";
- case DW_AT_is_optional: return "AT_is_optional";
- case DW_AT_lower_bound: return "AT_lower_bound";
- case DW_AT_producer: return "AT_producer";
- case DW_AT_prototyped: return "AT_prototyped";
- case DW_AT_return_addr: return "AT_return_addr";
- case DW_AT_start_scope: return "AT_start_scope";
- case DW_AT_bit_stride: return "AT_bit_stride";
- case DW_AT_upper_bound: return "AT_upper_bound";
- case DW_AT_abstract_origin: return "AT_abstract_origin";
- case DW_AT_accessibility: return "AT_accessibility";
- case DW_AT_address_class: return "AT_address_class";
- case DW_AT_artificial: return "AT_artificial";
- case DW_AT_base_types: return "AT_base_types";
- case DW_AT_calling_convention: return "AT_calling_convention";
- case DW_AT_count: return "AT_count";
- case DW_AT_data_member_location: return "AT_data_member_location";
- case DW_AT_decl_column: return "AT_decl_column";
- case DW_AT_decl_file: return "AT_decl_file";
- case DW_AT_decl_line: return "AT_decl_line";
- case DW_AT_declaration: return "AT_declaration";
- case DW_AT_discr_list: return "AT_discr_list";
- case DW_AT_encoding: return "AT_encoding";
- case DW_AT_external: return "AT_external";
- case DW_AT_frame_base: return "AT_frame_base";
- case DW_AT_friend: return "AT_friend";
- case DW_AT_identifier_case: return "AT_identifier_case";
- case DW_AT_macro_info: return "AT_macro_info";
- case DW_AT_namelist_item: return "AT_namelist_item";
- case DW_AT_priority: return "AT_priority";
- case DW_AT_segment: return "AT_segment";
- case DW_AT_specification: return "AT_specification";
- case DW_AT_static_link: return "AT_static_link";
- case DW_AT_type: return "AT_type";
- case DW_AT_use_location: return "AT_use_location";
- case DW_AT_variable_parameter: return "AT_variable_parameter";
- case DW_AT_virtuality: return "AT_virtuality";
- case DW_AT_vtable_elem_location: return "AT_vtable_elem_location";
- case DW_AT_allocated: return "AT_allocated";
- case DW_AT_associated: return "AT_associated";
- case DW_AT_data_location: return "AT_data_location";
- case DW_AT_byte_stride: return "AT_byte_stride";
- case DW_AT_entry_pc: return "AT_entry_pc";
- case DW_AT_use_UTF8: return "AT_use_UTF8";
- case DW_AT_extension: return "AT_extension";
- case DW_AT_ranges: return "AT_ranges";
- case DW_AT_trampoline: return "AT_trampoline";
- case DW_AT_call_column: return "AT_call_column";
- case DW_AT_call_file: return "AT_call_file";
- case DW_AT_call_line: return "AT_call_line";
- case DW_AT_description: return "AT_description";
- case DW_AT_binary_scale: return "AT_binary_scale";
- case DW_AT_decimal_scale: return "AT_decimal_scale";
- case DW_AT_small: return "AT_small";
- case DW_AT_decimal_sign: return "AT_decimal_sign";
- case DW_AT_digit_count: return "AT_digit_count";
- case DW_AT_picture_string: return "AT_picture_string";
- case DW_AT_mutable: return "AT_mutable";
- case DW_AT_threads_scaled: return "AT_threads_scaled";
- case DW_AT_explicit: return "AT_explicit";
- case DW_AT_object_pointer: return "AT_object_pointer";
- case DW_AT_endianity: return "AT_endianity";
- case DW_AT_elemental: return "AT_elemental";
- case DW_AT_pure: return "AT_pure";
- case DW_AT_recursive: return "AT_recursive";
- case DW_AT_lo_user: return "AT_lo_user";
- case DW_AT_hi_user: return "AT_hi_user";
+
+ /// operator< - Used by DIEAbbrev to locate entry.
+ ///
+ bool operator<(const DIEAbbrevData &DAD) const {
+ return Attribute < DAD.Attribute ||
+ (Attribute == DAD.Attribute && Form < DAD.Form);
}
- assert(0 && "Unknown Dwarf Attribute");
- return "";
-}
+};
-/// FormEncodingString - Return the string for the specified form encoding.
-///
-static const char *FormEncodingString(unsigned Encoding) {
- switch(Encoding) {
- case DW_FORM_addr: return "FORM_addr";
- case DW_FORM_block2: return "FORM_block2";
- case DW_FORM_block4: return "FORM_block4";
- case DW_FORM_data2: return "FORM_data2";
- case DW_FORM_data4: return "FORM_data4";
- case DW_FORM_data8: return "FORM_data8";
- case DW_FORM_string: return "FORM_string";
- case DW_FORM_block: return "FORM_block";
- case DW_FORM_block1: return "FORM_block1";
- case DW_FORM_data1: return "FORM_data1";
- case DW_FORM_flag: return "FORM_flag";
- case DW_FORM_sdata: return "FORM_sdata";
- case DW_FORM_strp: return "FORM_strp";
- case DW_FORM_udata: return "FORM_udata";
- case DW_FORM_ref_addr: return "FORM_ref_addr";
- case DW_FORM_ref1: return "FORM_ref1";
- case DW_FORM_ref2: return "FORM_ref2";
- case DW_FORM_ref4: return "FORM_ref4";
- case DW_FORM_ref8: return "FORM_ref8";
- case DW_FORM_ref_udata: return "FORM_ref_udata";
- case DW_FORM_indirect: return "FORM_indirect";
- }
- assert(0 && "Unknown Dwarf Form Encoding");
- return "";
-}
-
-/// OperationEncodingString - Return the string for the specified operation
-/// encoding.
-static const char *OperationEncodingString(unsigned Encoding) {
- switch(Encoding) {
- case DW_OP_addr: return "OP_addr";
- case DW_OP_deref: return "OP_deref";
- case DW_OP_const1u: return "OP_const1u";
- case DW_OP_const1s: return "OP_const1s";
- case DW_OP_const2u: return "OP_const2u";
- case DW_OP_const2s: return "OP_const2s";
- case DW_OP_const4u: return "OP_const4u";
- case DW_OP_const4s: return "OP_const4s";
- case DW_OP_const8u: return "OP_const8u";
- case DW_OP_const8s: return "OP_const8s";
- case DW_OP_constu: return "OP_constu";
- case DW_OP_consts: return "OP_consts";
- case DW_OP_dup: return "OP_dup";
- case DW_OP_drop: return "OP_drop";
- case DW_OP_over: return "OP_over";
- case DW_OP_pick: return "OP_pick";
- case DW_OP_swap: return "OP_swap";
- case DW_OP_rot: return "OP_rot";
- case DW_OP_xderef: return "OP_xderef";
- case DW_OP_abs: return "OP_abs";
- case DW_OP_and: return "OP_and";
- case DW_OP_div: return "OP_div";
- case DW_OP_minus: return "OP_minus";
- case DW_OP_mod: return "OP_mod";
- case DW_OP_mul: return "OP_mul";
- case DW_OP_neg: return "OP_neg";
- case DW_OP_not: return "OP_not";
- case DW_OP_or: return "OP_or";
- case DW_OP_plus: return "OP_plus";
- case DW_OP_plus_uconst: return "OP_plus_uconst";
- case DW_OP_shl: return "OP_shl";
- case DW_OP_shr: return "OP_shr";
- case DW_OP_shra: return "OP_shra";
- case DW_OP_xor: return "OP_xor";
- case DW_OP_skip: return "OP_skip";
- case DW_OP_bra: return "OP_bra";
- case DW_OP_eq: return "OP_eq";
- case DW_OP_ge: return "OP_ge";
- case DW_OP_gt: return "OP_gt";
- case DW_OP_le: return "OP_le";
- case DW_OP_lt: return "OP_lt";
- case DW_OP_ne: return "OP_ne";
- case DW_OP_lit0: return "OP_lit0";
- case DW_OP_lit1: return "OP_lit1";
- case DW_OP_lit31: return "OP_lit31";
- case DW_OP_reg0: return "OP_reg0";
- case DW_OP_reg1: return "OP_reg1";
- case DW_OP_reg31: return "OP_reg31";
- case DW_OP_breg0: return "OP_breg0";
- case DW_OP_breg1: return "OP_breg1";
- case DW_OP_breg31: return "OP_breg31";
- case DW_OP_regx: return "OP_regx";
- case DW_OP_fbreg: return "OP_fbreg";
- case DW_OP_bregx: return "OP_bregx";
- case DW_OP_piece: return "OP_piece";
- case DW_OP_deref_size: return "OP_deref_size";
- case DW_OP_xderef_size: return "OP_xderef_size";
- case DW_OP_nop: return "OP_nop";
- case DW_OP_push_object_address: return "OP_push_object_address";
- case DW_OP_call2: return "OP_call2";
- case DW_OP_call4: return "OP_call4";
- case DW_OP_call_ref: return "OP_call_ref";
- case DW_OP_form_tls_address: return "OP_form_tls_address";
- case DW_OP_call_frame_cfa: return "OP_call_frame_cfa";
- case DW_OP_lo_user: return "OP_lo_user";
- case DW_OP_hi_user: return "OP_hi_user";
- }
- assert(0 && "Unknown Dwarf Operation Encoding");
- return "";
-}
-
-/// AttributeEncodingString - Return the string for the specified attribute
-/// encoding.
-static const char *AttributeEncodingString(unsigned Encoding) {
- switch(Encoding) {
- case DW_ATE_address: return "ATE_address";
- case DW_ATE_boolean: return "ATE_boolean";
- case DW_ATE_complex_float: return "ATE_complex_float";
- case DW_ATE_float: return "ATE_float";
- case DW_ATE_signed: return "ATE_signed";
- case DW_ATE_signed_char: return "ATE_signed_char";
- case DW_ATE_unsigned: return "ATE_unsigned";
- case DW_ATE_unsigned_char: return "ATE_unsigned_char";
- case DW_ATE_imaginary_float: return "ATE_imaginary_float";
- case DW_ATE_packed_decimal: return "ATE_packed_decimal";
- case DW_ATE_numeric_string: return "ATE_numeric_string";
- case DW_ATE_edited: return "ATE_edited";
- case DW_ATE_signed_fixed: return "ATE_signed_fixed";
- case DW_ATE_unsigned_fixed: return "ATE_unsigned_fixed";
- case DW_ATE_decimal_float: return "ATE_decimal_float";
- case DW_ATE_lo_user: return "ATE_lo_user";
- case DW_ATE_hi_user: return "ATE_hi_user";
- }
- assert(0 && "Unknown Dwarf Attribute Encoding");
- return "";
-}
-
-/// DecimalSignString - Return the string for the specified decimal sign
-/// attribute.
-static const char *DecimalSignString(unsigned Sign) {
- switch(Sign) {
- case DW_DS_unsigned: return "DS_unsigned";
- case DW_DS_leading_overpunch: return "DS_leading_overpunch";
- case DW_DS_trailing_overpunch: return "DS_trailing_overpunch";
- case DW_DS_leading_separate: return "DS_leading_separate";
- case DW_DS_trailing_separate: return "DS_trailing_separate";
+//===----------------------------------------------------------------------===//
+// DIEAbbrev - Dwarf abbreviation, describes the organization of a debug
+// information object.
+class DIEAbbrev {
+private:
+ unsigned Tag; // Dwarf tag code.
+ unsigned ChildrenFlag; // Dwarf children flag.
+ std::vector<DIEAbbrevData> Data; // Raw data bytes for abbreviation.
+
+public:
+
+ DIEAbbrev(unsigned T, unsigned C)
+ : Tag(T)
+ , ChildrenFlag(C)
+ , Data()
+ {}
+ ~DIEAbbrev() {}
+
+ // Accessors
+ unsigned getTag() const { return Tag; }
+ unsigned getChildrenFlag() const { return ChildrenFlag; }
+ const std::vector<DIEAbbrevData> &getData() const { return Data; }
+ void setChildrenFlag(unsigned CF) { ChildrenFlag = CF; }
+
+ /// operator== - Used by UniqueVector to locate entry.
+ ///
+ bool operator==(const DIEAbbrev &DA) const;
+
+ /// operator< - Used by UniqueVector to locate entry.
+ ///
+ bool operator<(const DIEAbbrev &DA) const;
+
+ /// AddAttribute - Adds another set of attribute information to the
+ /// abbreviation.
+ void AddAttribute(unsigned Attribute, unsigned Form) {
+ Data.push_back(DIEAbbrevData(Attribute, Form));
}
- assert(0 && "Unknown Dwarf Decimal Sign Attribute");
- return "";
-}
+
+ /// Emit - Print the abbreviation using the specified Dwarf writer.
+ ///
+ void Emit(const DwarfWriter &DW) const;
+
+#ifndef NDEBUG
+ void print(std::ostream &O);
+ void dump();
+#endif
+};
-/// EndianityString - Return the string for the specified endianity.
-///
-static const char *EndianityString(unsigned Endian) {
- switch(Endian) {
- case DW_END_default: return "END_default";
- case DW_END_big: return "END_big";
- case DW_END_little: return "END_little";
- case DW_END_lo_user: return "END_lo_user";
- case DW_END_hi_user: return "END_hi_user";
- }
- assert(0 && "Unknown Dwarf Endianity");
- return "";
-}
+//===----------------------------------------------------------------------===//
+// DIEValue - A debug information entry value.
+//
+class DIEValue {
+public:
+ enum {
+ isInteger,
+ isString,
+ isLabel,
+ isAsIsLabel,
+ isDelta,
+ isEntry
+ };
+
+ unsigned Type; // Type of the value
+
+ DIEValue(unsigned T) : Type(T) {}
+ virtual ~DIEValue() {}
+
+ // Implement isa/cast/dyncast.
+ static bool classof(const DIEValue *) { return true; }
+
+ /// EmitValue - Emit value via the Dwarf writer.
+ ///
+ virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const = 0;
+
+ /// SizeOf - Return the size of a value in bytes.
+ ///
+ virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const = 0;
+};
-/// AccessibilityString - Return the string for the specified accessibility.
-///
-static const char *AccessibilityString(unsigned Access) {
- switch(Access) {
- // Accessibility codes
- case DW_ACCESS_public: return "ACCESS_public";
- case DW_ACCESS_protected: return "ACCESS_protected";
- case DW_ACCESS_private: return "ACCESS_private";
- }
- assert(0 && "Unknown Dwarf Accessibility");
- return "";
-}
+//===----------------------------------------------------------------------===//
+// DWInteger - An integer value DIE.
+//
+class DIEInteger : public DIEValue {
+private:
+ uint64_t Integer;
+
+public:
+ DIEInteger(uint64_t I) : DIEValue(isInteger), Integer(I) {}
-/// VisibilityString - Return the string for the specified visibility.
-///
-static const char *VisibilityString(unsigned Visibility) {
- switch(Visibility) {
- case DW_VIS_local: return "VIS_local";
- case DW_VIS_exported: return "VIS_exported";
- case DW_VIS_qualified: return "VIS_qualified";
- }
- assert(0 && "Unknown Dwarf Visibility");
- return "";
-}
+ // Implement isa/cast/dyncast.
+ static bool classof(const DIEInteger *) { return true; }
+ static bool classof(const DIEValue *I) { return I->Type == isInteger; }
+
+ /// EmitValue - Emit integer of appropriate size.
+ ///
+ virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+
+ /// SizeOf - Determine size of integer value in bytes.
+ ///
+ virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+};
-/// VirtualityString - Return the string for the specified virtuality.
-///
-static const char *VirtualityString(unsigned Virtuality) {
- switch(Virtuality) {
- case DW_VIRTUALITY_none: return "VIRTUALITY_none";
- case DW_VIRTUALITY_virtual: return "VIRTUALITY_virtual";
- case DW_VIRTUALITY_pure_virtual: return "VIRTUALITY_pure_virtual";
- }
- assert(0 && "Unknown Dwarf Virtuality");
- return "";
-}
+//===----------------------------------------------------------------------===//
+// DIEString - A string value DIE.
+//
+struct DIEString : public DIEValue {
+ const std::string String;
+
+ DIEString(const std::string &S) : DIEValue(isString), String(S) {}
-/// LanguageString - Return the string for the specified language.
-///
-static const char *LanguageString(unsigned Language) {
- switch(Language) {
- case DW_LANG_C89: return "LANG_C89";
- case DW_LANG_C: return "LANG_C";
- case DW_LANG_Ada83: return "LANG_Ada83";
- case DW_LANG_C_plus_plus: return "LANG_C_plus_plus";
- case DW_LANG_Cobol74: return "LANG_Cobol74";
- case DW_LANG_Cobol85: return "LANG_Cobol85";
- case DW_LANG_Fortran77: return "LANG_Fortran77";
- case DW_LANG_Fortran90: return "LANG_Fortran90";
- case DW_LANG_Pascal83: return "LANG_Pascal83";
- case DW_LANG_Modula2: return "LANG_Modula2";
- case DW_LANG_Java: return "LANG_Java";
- case DW_LANG_C99: return "LANG_C99";
- case DW_LANG_Ada95: return "LANG_Ada95";
- case DW_LANG_Fortran95: return "LANG_Fortran95";
- case DW_LANG_PLI: return "LANG_PLI";
- case DW_LANG_ObjC: return "LANG_ObjC";
- case DW_LANG_ObjC_plus_plus: return "LANG_ObjC_plus_plus";
- case DW_LANG_UPC: return "LANG_UPC";
- case DW_LANG_D: return "LANG_D";
- case DW_LANG_lo_user: return "LANG_lo_user";
- case DW_LANG_hi_user: return "LANG_hi_user";
- }
- assert(0 && "Unknown Dwarf Language");
- return "";
-}
+ // Implement isa/cast/dyncast.
+ static bool classof(const DIEString *) { return true; }
+ static bool classof(const DIEValue *S) { return S->Type == isString; }
+
+ /// EmitValue - Emit string value.
+ ///
+ virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+
+ /// SizeOf - Determine size of string value in bytes.
+ ///
+ virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+};
-/// CaseString - Return the string for the specified identifier case.
-///
-static const char *CaseString(unsigned Case) {
- switch(Case) {
- case DW_ID_case_sensitive: return "ID_case_sensitive";
- case DW_ID_up_case: return "ID_up_case";
- case DW_ID_down_case: return "ID_down_case";
- case DW_ID_case_insensitive: return "ID_case_insensitive";
- }
- assert(0 && "Unknown Dwarf Identifier Case");
- return "";
-}
+//===----------------------------------------------------------------------===//
+// DIEDwarfLabel - A Dwarf internal label expression DIE.
+//
+struct DIEDwarfLabel : public DIEValue {
+ const DWLabel Label;
+
+ DIEDwarfLabel(const DWLabel &L) : DIEValue(isLabel), Label(L) {}
-/// ConventionString - Return the string for the specified calling convention.
-///
-static const char *ConventionString(unsigned Convention) {
- switch(Convention) {
- case DW_CC_normal: return "CC_normal";
- case DW_CC_program: return "CC_program";
- case DW_CC_nocall: return "CC_nocall";
- case DW_CC_lo_user: return "CC_lo_user";
- case DW_CC_hi_user: return "CC_hi_user";
- }
- assert(0 && "Unknown Dwarf Calling Convention");
- return "";
-}
+ // Implement isa/cast/dyncast.
+ static bool classof(const DIEDwarfLabel *) { return true; }
+ static bool classof(const DIEValue *L) { return L->Type == isLabel; }
+
+ /// EmitValue - Emit label value.
+ ///
+ virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+
+ /// SizeOf - Determine size of label value in bytes.
+ ///
+ virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+};
-/// InlineCodeString - Return the string for the specified inline code.
-///
-static const char *InlineCodeString(unsigned Code) {
- switch(Code) {
- case DW_INL_not_inlined: return "INL_not_inlined";
- case DW_INL_inlined: return "INL_inlined";
- case DW_INL_declared_not_inlined: return "INL_declared_not_inlined";
- case DW_INL_declared_inlined: return "INL_declared_inlined";
- }
- assert(0 && "Unknown Dwarf Inline Code");
- return "";
-}
-/// ArrayOrderString - Return the string for the specified array order.
-///
-static const char *ArrayOrderString(unsigned Order) {
- switch(Order) {
- case DW_ORD_row_major: return "ORD_row_major";
- case DW_ORD_col_major: return "ORD_col_major";
- }
- assert(0 && "Unknown Dwarf Array Order");
- return "";
-}
+//===----------------------------------------------------------------------===//
+// DIEObjectLabel - A label to an object in code or data.
+//
+struct DIEObjectLabel : public DIEValue {
+ const std::string Label;
+
+ DIEObjectLabel(const std::string &L) : DIEValue(isAsIsLabel), Label(L) {}
-/// DiscriminantString - Return the string for the specified discriminant
-/// descriptor.
-static const char *DiscriminantString(unsigned Discriminant) {
- switch(Discriminant) {
- case DW_DSC_label: return "DSC_label";
- case DW_DSC_range: return "DSC_range";
- }
- assert(0 && "Unknown Dwarf Discriminant Descriptor");
- return "";
-}
+ // Implement isa/cast/dyncast.
+ static bool classof(const DIEObjectLabel *) { return true; }
+ static bool classof(const DIEValue *L) { return L->Type == isAsIsLabel; }
+
+ /// EmitValue - Emit label value.
+ ///
+ virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+
+ /// SizeOf - Determine size of label value in bytes.
+ ///
+ virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+};
-/// LNStandardString - Return the string for the specified line number standard.
-///
-static const char *LNStandardString(unsigned Standard) {
- switch(Standard) {
- case DW_LNS_copy: return "LNS_copy";
- case DW_LNS_advance_pc: return "LNS_advance_pc";
- case DW_LNS_advance_line: return "LNS_advance_line";
- case DW_LNS_set_file: return "LNS_set_file";
- case DW_LNS_set_column: return "LNS_set_column";
- case DW_LNS_negate_stmt: return "LNS_negate_stmt";
- case DW_LNS_set_basic_block: return "LNS_set_basic_block";
- case DW_LNS_const_add_pc: return "LNS_const_add_pc";
- case DW_LNS_fixed_advance_pc: return "LNS_fixed_advance_pc";
- case DW_LNS_set_prologue_end: return "LNS_set_prologue_end";
- case DW_LNS_set_epilogue_begin: return "LNS_set_epilogue_begin";
- case DW_LNS_set_isa: return "LNS_set_isa";
- }
- assert(0 && "Unknown Dwarf Line Number Standard");
- return "";
-}
-
-/// LNExtendedString - Return the string for the specified line number extended
-/// opcode encodings.
-static const char *LNExtendedString(unsigned Encoding) {
- switch(Encoding) {
- // Line Number Extended Opcode Encodings
- case DW_LNE_end_sequence: return "LNE_end_sequence";
- case DW_LNE_set_address: return "LNE_set_address";
- case DW_LNE_define_file: return "LNE_define_file";
- case DW_LNE_lo_user: return "LNE_lo_user";
- case DW_LNE_hi_user: return "LNE_hi_user";
- }
- assert(0 && "Unknown Dwarf Line Number Extended Opcode Encoding");
- return "";
-}
+//===----------------------------------------------------------------------===//
+// DIEDelta - A simple label difference DIE.
+//
+struct DIEDelta : public DIEValue {
+ const DWLabel LabelHi;
+ const DWLabel LabelLo;
+
+ DIEDelta(const DWLabel &Hi, const DWLabel &Lo)
+ : DIEValue(isDelta), LabelHi(Hi), LabelLo(Lo) {}
-/// MacinfoString - Return the string for the specified macinfo type encodings.
-///
-static const char *MacinfoString(unsigned Encoding) {
- switch(Encoding) {
- // Macinfo Type Encodings
- case DW_MACINFO_define: return "MACINFO_define";
- case DW_MACINFO_undef: return "MACINFO_undef";
- case DW_MACINFO_start_file: return "MACINFO_start_file";
- case DW_MACINFO_end_file: return "MACINFO_end_file";
- case DW_MACINFO_vendor_ext: return "MACINFO_vendor_ext";
- }
- assert(0 && "Unknown Dwarf Macinfo Type Encodings");
- return "";
-}
-
-/// CallFrameString - Return the string for the specified call frame instruction
-/// encodings.
-static const char *CallFrameString(unsigned Encoding) {
- switch(Encoding) {
- case DW_CFA_advance_loc: return "CFA_advance_loc";
- case DW_CFA_offset: return "CFA_offset";
- case DW_CFA_restore: return "CFA_restore";
- case DW_CFA_set_loc: return "CFA_set_loc";
- case DW_CFA_advance_loc1: return "CFA_advance_loc1";
- case DW_CFA_advance_loc2: return "CFA_advance_loc2";
- case DW_CFA_advance_loc4: return "CFA_advance_loc4";
- case DW_CFA_offset_extended: return "CFA_offset_extended";
- case DW_CFA_restore_extended: return "CFA_restore_extended";
- case DW_CFA_undefined: return "CFA_undefined";
- case DW_CFA_same_value: return "CFA_same_value";
- case DW_CFA_register: return "CFA_register";
- case DW_CFA_remember_state: return "CFA_remember_state";
- case DW_CFA_restore_state: return "CFA_restore_state";
- case DW_CFA_def_cfa: return "CFA_def_cfa";
- case DW_CFA_def_cfa_register: return "CFA_def_cfa_register";
- case DW_CFA_def_cfa_offset: return "CFA_def_cfa_offset";
- case DW_CFA_def_cfa_expression: return "CFA_def_cfa_expression";
- case DW_CFA_expression: return "CFA_expression";
- case DW_CFA_offset_extended_sf: return "CFA_offset_extended_sf";
- case DW_CFA_def_cfa_sf: return "CFA_def_cfa_sf";
- case DW_CFA_def_cfa_offset_sf: return "CFA_def_cfa_offset_sf";
- case DW_CFA_val_offset: return "CFA_val_offset";
- case DW_CFA_val_offset_sf: return "CFA_val_offset_sf";
- case DW_CFA_val_expression: return "CFA_val_expression";
- case DW_CFA_lo_user: return "CFA_lo_user";
- case DW_CFA_hi_user: return "CFA_hi_user";
- }
- assert(0 && "Unknown Dwarf Call Frame Instruction Encodings");
- return "";
-}
+ // Implement isa/cast/dyncast.
+ static bool classof(const DIEDelta *) { return true; }
+ static bool classof(const DIEValue *D) { return D->Type == isDelta; }
+
+ /// EmitValue - Emit delta value.
+ ///
+ virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+
+ /// SizeOf - Determine size of delta value in bytes.
+ ///
+ virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+};
+
+//===----------------------------------------------------------------------===//
+// DIEntry - A pointer to a debug information entry.
+//
+struct DIEntry : public DIEValue {
+ DIE *Entry;
+
+ DIEntry(DIE *E) : DIEValue(isEntry), Entry(E) {}
+
+ // Implement isa/cast/dyncast.
+ static bool classof(const DIEntry *) { return true; }
+ static bool classof(const DIEValue *E) { return E->Type == isEntry; }
+
+ /// EmitValue - Emit delta value.
+ ///
+ virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+
+ /// SizeOf - Determine size of delta value in bytes.
+ ///
+ virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+};
+
+//===----------------------------------------------------------------------===//
+// DIE - A structured debug information entry. Has an abbreviation which
+// describes it's organization.
+class DIE {
+private:
+ DIEAbbrev *Abbrev; // Temporary buffer for abbreviation.
+ unsigned AbbrevID; // Decribing abbreviation ID.
+ unsigned Offset; // Offset in debug info section.
+ unsigned Size; // Size of instance + children.
+ std::vector<DIE *> Children; // Children DIEs.
+ std::vector<DIEValue *> Values; // Attributes values.
+
+public:
+ DIE(unsigned Tag);
+ ~DIE();
+
+ // Accessors
+ unsigned getAbbrevID() const { return AbbrevID; }
+ unsigned getOffset() const { return Offset; }
+ unsigned getSize() const { return Size; }
+ const std::vector<DIE *> &getChildren() const { return Children; }
+ const std::vector<DIEValue *> &getValues() const { return Values; }
+ void setOffset(unsigned O) { Offset = O; }
+ void setSize(unsigned S) { Size = S; }
+
+ /// SiblingOffset - Return the offset of the debug information entry's
+ /// sibling.
+ unsigned SiblingOffset() const { return Offset + Size; }
+
+ /// AddUInt - Add an unsigned integer attribute data and value.
+ ///
+ void AddUInt(unsigned Attribute, unsigned Form, uint64_t Integer);
+
+ /// AddSInt - Add an signed integer attribute data and value.
+ ///
+ void AddSInt(unsigned Attribute, unsigned Form, int64_t Integer);
+
+ /// AddString - Add a std::string attribute data and value.
+ ///
+ void AddString(unsigned Attribute, unsigned Form,
+ const std::string &String);
+
+ /// AddLabel - Add a Dwarf label attribute data and value.
+ ///
+ void AddLabel(unsigned Attribute, unsigned Form, const DWLabel &Label);
+
+ /// AddObjectLabel - Add a non-Dwarf label attribute data and value.
+ ///
+ void AddObjectLabel(unsigned Attribute, unsigned Form,
+ const std::string &Label);
+
+ /// AddDelta - Add a label delta attribute data and value.
+ ///
+ void AddDelta(unsigned Attribute, unsigned Form,
+ const DWLabel &Hi, const DWLabel &Lo);
+
+ /// AddDIEntry - Add a DIE attribute data and value.
+ ///
+ void AddDIEntry(unsigned Attribute, unsigned Form, DIE *Entry);
+
+ /// Complete - Indicate that all attributes have been added and
+ /// ready to get an abbreviation ID.
+ ///
+ void Complete(DwarfWriter &DW);
+
+ /// AddChild - Add a child to the DIE.
+ void AddChild(DIE *Child);
+};
+
+} // End of namespace llvm
//===----------------------------------------------------------------------===//
@@ -1442,14 +1217,16 @@ void DwarfWriter::EmitDIE(DIE *Die) const {
// Get the abbreviation for this DIE.
unsigned AbbrevID = Die->getAbbrevID();
const DIEAbbrev &Abbrev = Abbreviations[AbbrevID];
+
+ O << "\n";
// Emit the code (index) for the abbreviation.
EmitULEB128Bytes(AbbrevID);
EOL(std::string("Abbrev [" +
utostr(AbbrevID) +
- "] " +
- TagString(Abbrev.getTag())) +
- " ");
+ "] 0x" + utohexstr(Die->getOffset()) +
+ ":0x" + utohexstr(Die->getSize()) + " " +
+ TagString(Abbrev.getTag())));
const std::vector<DIEValue *> &Values = Die->getValues();
const std::vector<DIEAbbrevData> &AbbrevData = Abbrev.getData();
@@ -1535,14 +1312,16 @@ unsigned DwarfWriter::SizeAndOffsetDie(DIE *Die, unsigned Offset) {
/// SizeAndOffsets - Compute the size and offset of all the DIEs.
///
void DwarfWriter::SizeAndOffsets() {
- // Compute size of debug unit header
- unsigned Offset = sizeof(int32_t) + // Length of Compilation Unit Info
- sizeof(int16_t) + // DWARF version number
- sizeof(int32_t) + // Offset Into Abbrev. Section
- sizeof(int8_t); // Pointer Size (in bytes)
+ unsigned Offset = 0;
// Process each compile unit.
for (unsigned i = 0, N = CompileUnits.size(); i < N; ++i) {
+ // Compute size of compile unit header
+ Offset += sizeof(int32_t) + // Length of Compilation Unit Info
+ sizeof(int16_t) + // DWARF version number
+ sizeof(int32_t) + // Offset Into Abbrev. Section
+ sizeof(int8_t); // Pointer Size (in bytes)
+
Offset = SizeAndOffsetDie(CompileUnits[i], Offset);
}
}
@@ -1559,26 +1338,28 @@ void DwarfWriter::EmitDebugInfo() const {
// If there are any compile units.
if (N) {
EmitLabel("info_begin", 0);
-
- // Emit the compile units header.
- // Emit size of content not including length itself
- unsigned ContentSize = CompileUnits[N - 1]->SiblingOffset();
- EmitInt32(ContentSize - sizeof(int32_t));
- EOL("Length of Compilation Unit Info");
-
- EmitInt16(DWARF_VERSION); EOL("DWARF version number");
-
- EmitReference("abbrev_begin", 0); EOL("Offset Into Abbrev. Section");
-
- EmitInt8(AddressSize); EOL("Address Size (in bytes)");
-
// Process each compile unit.
for (unsigned i = 0; i < N; ++i) {
+ // Emit the compile units header.
+
+ // Emit size of content not including length itself
+ unsigned ContentSize = CompileUnits[i]->getSize() +
+ sizeof(int16_t) + // DWARF version number
+ sizeof(int32_t) + // Offset Into Abbrev. Section
+ sizeof(int8_t); // Pointer Size (in bytes)
+
+ EmitInt32(ContentSize); EOL("Length of Compilation Unit Info");
+ EmitInt16(DWARF_VERSION); EOL("DWARF version number");
+ EmitReference("abbrev_begin", 0); EOL("Offset Into Abbrev. Section");
+ EmitInt8(AddressSize); EOL("Address Size (in bytes)");
+
EmitDIE(CompileUnits[i]);
}
-
+
EmitLabel("info_end", 0);
+
+ O << "\n";
}
}
@@ -1603,9 +1384,13 @@ void DwarfWriter::EmitAbbreviations() const {
// Emit the abbreviations data.
Abbrev.Emit(*this);
+
+ O << "\n";
}
EmitLabel("abbrev_end", 0);
+
+ O << "\n";
}
}
@@ -1748,6 +1533,8 @@ void DwarfWriter::EmitDebugLines() const {
EmitInt8(1); O << "\n";
EmitLabel("line_end", 0);
+
+ O << "\n";
}
/// EmitDebugFrame - Emit visible names into a debug frame section.
@@ -1789,6 +1576,8 @@ void DwarfWriter::EmitDebugPubNames() {
EmitInt32(0); EOL("End Mark");
EmitLabel("pubnames_end", 0);
+
+ O << "\n";
}
}
@@ -1799,6 +1588,8 @@ void DwarfWriter::EmitDebugPubTypes() {
if (!GlobalTypes.empty()) {
// Start the dwarf pubtypes section.
Asm->SwitchSection(DwarfPubTypesSection, 0);
+
+ O << "\n";
}
}
@@ -1819,6 +1610,8 @@ void DwarfWriter::EmitDebugStr() {
const std::string &String = StringPool[StringID];
EmitString(String); O << "\n";
}
+
+ O << "\n";
}
}
@@ -1827,6 +1620,8 @@ void DwarfWriter::EmitDebugStr() {
void DwarfWriter::EmitDebugLoc() {
// Start the dwarf loc section.
Asm->SwitchSection(DwarfLocSection, 0);
+
+ O << "\n";
}
/// EmitDebugARanges - Emit visible names into a debug aranges section.
@@ -1857,6 +1652,8 @@ void DwarfWriter::EmitDebugARanges() {
EmitInt32(0); EOL("EOM (1)");
EmitInt32(0); EOL("EOM (2)");
+
+ O << "\n";
}
/// EmitDebugRanges - Emit visible names into a debug ranges section.
@@ -1864,6 +1661,8 @@ void DwarfWriter::EmitDebugARanges() {
void DwarfWriter::EmitDebugRanges() {
// Start the dwarf ranges section.
Asm->SwitchSection(DwarfRangesSection, 0);
+
+ O << "\n";
}
/// EmitDebugMacInfo - Emit visible names into a debug macinfo section.
@@ -1871,6 +1670,8 @@ void DwarfWriter::EmitDebugRanges() {
void DwarfWriter::EmitDebugMacInfo() {
// Start the dwarf macinfo section.
Asm->SwitchSection(DwarfMacInfoSection, 0);
+
+ O << "\n";
}
/// ConstructCompileUnitDIEs - Create a compile unit DIE for each source and
@@ -2006,13 +1807,13 @@ void DwarfWriter::EndModule(Module &M) {
EmitDebugLines();
// Emit info into a debug frame section.
- EmitDebugFrame();
+ // EmitDebugFrame();
// Emit info into a debug pubnames section.
EmitDebugPubNames();
// Emit info into a debug pubtypes section.
- EmitDebugPubTypes();
+ // EmitDebugPubTypes();
// Emit info into a debug str section.
EmitDebugStr();
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