diff options
Diffstat (limited to 'gdb/dwarf2/mapped-index.h')
| -rw-r--r-- | gdb/dwarf2/mapped-index.h | 82 |
1 files changed, 9 insertions, 73 deletions
diff --git a/gdb/dwarf2/mapped-index.h b/gdb/dwarf2/mapped-index.h index b4f6483..1690690 100644 --- a/gdb/dwarf2/mapped-index.h +++ b/gdb/dwarf2/mapped-index.h @@ -1,6 +1,6 @@ /* Base class for mapped indices - Copyright (C) 2021-2024 Free Software Foundation, Inc. + Copyright (C) 2021-2025 Free Software Foundation, Inc. This file is part of GDB. @@ -20,32 +20,7 @@ #ifndef GDB_DWARF2_MAPPED_INDEX_H #define GDB_DWARF2_MAPPED_INDEX_H -#include "language.h" - -/* An index into a (C++) symbol name component in a symbol name as - recorded in the mapped_index's symbol table. For each C++ symbol - in the symbol table, we record one entry for the start of each - component in the symbol in a table of name components, and then - sort the table, in order to be able to binary search symbol names, - ignoring leading namespaces, both completion and regular look up. - For example, for symbol "A::B::C", we'll have an entry that points - to "A::B::C", another that points to "B::C", and another for "C". - Note that function symbols in GDB index have no parameter - information, just the function/method names. You can convert a - name_component to a "const char *" using the - 'mapped_index::symbol_name_at(offset_type)' method. */ - -struct name_component -{ - /* Offset in the symbol name where the component starts. Stored as - a (32-bit) offset instead of a pointer to save memory and improve - locality on 64-bit architectures. */ - offset_type name_offset; - - /* The symbol's index in the symbol and constant pool tables of a - mapped_index. */ - offset_type idx; -}; +#include "quick-symbol.h" class cooked_index; @@ -57,6 +32,11 @@ struct dwarf_scanner_base virtual ~dwarf_scanner_base () = default; DISABLE_COPY_AND_ASSIGN (dwarf_scanner_base); + /* Start the reading. This is only really relevant to the cooked + index; see cooked-index.h. */ + virtual void start_reading () + { } + /* Return a quick_symbol_functions instance that refers back to this dwarf_scanner_base. */ virtual quick_symbol_functions_up make_quick_functions () const = 0; @@ -85,54 +65,10 @@ struct dwarf_scanner_base /* Look up ADDR, and return either the corresponding CU, or nullptr if the address could not be found. */ - virtual dwarf2_per_cu_data *lookup (unrelocated_addr addr) + virtual dwarf2_per_cu *lookup (unrelocated_addr addr) { return nullptr; } }; -/* Base class containing bits shared by both .gdb_index and - .debug_name indexes. */ - -struct mapped_index_base : public dwarf_scanner_base -{ - mapped_index_base () = default; - DISABLE_COPY_AND_ASSIGN (mapped_index_base); - - /* The name_component table (a sorted vector). See name_component's - description above. */ - std::vector<name_component> name_components; - - /* How NAME_COMPONENTS is sorted. */ - enum case_sensitivity name_components_casing; - - /* Return the number of names in the symbol table. */ - virtual size_t symbol_name_count () const = 0; - - /* Get the name of the symbol at IDX in the symbol table. */ - virtual const char *symbol_name_at - (offset_type idx, dwarf2_per_objfile *per_objfile) const = 0; - - /* Return whether the name at IDX in the symbol table should be - ignored. */ - virtual bool symbol_name_slot_invalid (offset_type idx) const - { - return false; - } - - /* Build the symbol name component sorted vector, if we haven't - yet. */ - void build_name_components (dwarf2_per_objfile *per_objfile); - - /* Returns the lower (inclusive) and upper (exclusive) bounds of the - possible matches for LN_NO_PARAMS in the name component - vector. */ - std::pair<std::vector<name_component>::const_iterator, - std::vector<name_component>::const_iterator> - find_name_components_bounds (const lookup_name_info &ln_no_params, - enum language lang, - dwarf2_per_objfile *per_objfile) const; - - cooked_index *index_for_writing () override - { return nullptr; } -}; +using dwarf_scanner_base_up = std::unique_ptr<dwarf_scanner_base>; #endif /* GDB_DWARF2_MAPPED_INDEX_H */ |