diff options
Diffstat (limited to 'gdb/dwarf2/read.h')
| -rw-r--r-- | gdb/dwarf2/read.h | 90 |
1 files changed, 52 insertions, 38 deletions
diff --git a/gdb/dwarf2/read.h b/gdb/dwarf2/read.h index 8045a57..360e3eb 100644 --- a/gdb/dwarf2/read.h +++ b/gdb/dwarf2/read.h @@ -91,7 +91,7 @@ struct dwarf2_per_cu_data_deleter /* A specialization of unique_ptr for dwarf2_per_cu_data and subclasses. */ typedef std::unique_ptr<dwarf2_per_cu_data, dwarf2_per_cu_data_deleter> - dwarf2_per_cu_data_up; + dwarf2_per_cu_data_up; /* Persistent data held for a compilation unit, even when not processing it. We put a pointer to this structure in the @@ -120,12 +120,14 @@ struct dwarf2_per_cu_data sect_offset sect_off {}; private: + unsigned int m_length = 0; /* DWARF standard version this data has been read from (such as 4 or 5). */ unsigned char m_dwarf_version = 0; public: + /* Flag indicating this compilation unit will be read in before any of the current compilation units are processed. */ unsigned int queued : 1; @@ -177,13 +179,15 @@ public: packed<bool, 1> addresses_seen = false; private: + /* The unit type of this CU. */ - std::atomic<packed<dwarf_unit_type, 1>> m_unit_type {(dwarf_unit_type)0}; + std::atomic<packed<dwarf_unit_type, 1>> m_unit_type { (dwarf_unit_type) 0 }; /* The language of this CU. */ - std::atomic<packed<language, LANGUAGE_BYTES>> m_lang {language_unknown}; + std::atomic<packed<language, LANGUAGE_BYTES>> m_lang { language_unknown }; public: + /* True if this CU has been scanned by the indexer; false if not. */ std::atomic<bool> scanned; @@ -243,7 +247,7 @@ public: could be refactored to make this private. Until then please try to avoid direct access to this member, and instead use the helper functions above. */ - std::vector <dwarf2_per_cu_data *> *imported_symtabs = nullptr; + std::vector<dwarf2_per_cu_data *> *imported_symtabs = nullptr; /* Return true of IMPORTED_SYMTABS is empty or not yet allocated. */ bool imported_symtabs_empty () const @@ -256,7 +260,7 @@ public: void imported_symtabs_push (dwarf2_per_cu_data *p) { if (imported_symtabs == nullptr) - imported_symtabs = new std::vector <dwarf2_per_cu_data *>; + imported_symtabs = new std::vector<dwarf2_per_cu_data *>; imported_symtabs->push_back (p); } @@ -338,7 +342,7 @@ public: void set_unit_type (dwarf_unit_type unit_type) { /* Set if not set already. */ - packed<dwarf_unit_type, 1> nope = (dwarf_unit_type)0; + packed<dwarf_unit_type, 1> nope = (dwarf_unit_type) 0; if (m_unit_type.compare_exchange_strong (nope, unit_type)) return; @@ -382,7 +386,8 @@ struct signatured_type : public dwarf2_per_cu_data { signatured_type (ULONGEST signature) : signature (signature) - {} + { + } /* The type's signature. */ ULONGEST signature; @@ -424,7 +429,8 @@ struct dwarf2_per_bfd used. CAN_COPY is true for formats where symbol interposition is possible and so symbol values must follow copy relocation rules. */ - dwarf2_per_bfd (bfd *obfd, const dwarf2_debug_sections *names, bool can_copy); + dwarf2_per_bfd (bfd *obfd, const dwarf2_debug_sections *names, + bool can_copy); ~dwarf2_per_bfd (); @@ -451,6 +457,7 @@ struct dwarf2_per_bfd void map_info_sections (struct objfile *objfile); private: + /* This function is mapped across the sections and remembers the offset and size of each of the debugging sections we are interested in. */ @@ -458,6 +465,7 @@ private: const dwarf2_debug_sections &names); public: + /* The corresponding BFD. */ bfd *obfd; @@ -506,7 +514,9 @@ public: /* Type unit statistics, to see how well the scaling improvements are doing. */ - struct tu_stats tu_stats {}; + struct tu_stats tu_stats + { + }; /* A table mapping DW_AT_dwo_name values to struct dwo_file objects. This is NULL if the table hasn't been allocated yet. */ @@ -591,8 +601,10 @@ struct type_unit_group_unshareable struct dwarf2_per_objfile { dwarf2_per_objfile (struct objfile *objfile, dwarf2_per_bfd *per_bfd) - : objfile (objfile), per_bfd (per_bfd) - {} + : objfile (objfile), + per_bfd (per_bfd) + { + } ~dwarf2_per_objfile (); @@ -605,8 +617,7 @@ struct dwarf2_per_objfile /* Return pointer to string at .debug_line_str offset as read from BUF. The offset_size is OFFSET_SIZE. */ - const char *read_line_string (const gdb_byte *buf, - unsigned int offset_size); + const char *read_line_string (const gdb_byte *buf, unsigned int offset_size); /* Return true if the symtab corresponding to PER_CU has been set, false otherwise. */ @@ -620,8 +631,8 @@ struct dwarf2_per_objfile /* Get the type_unit_group_unshareable corresponding to TU_GROUP. If one does not exist, create it. */ - type_unit_group_unshareable *get_type_unit_group_unshareable - (type_unit_group *tu_group); + type_unit_group_unshareable * + get_type_unit_group_unshareable (type_unit_group *tu_group); struct type *get_type_for_signatured_type (signatured_type *sig_type) const; @@ -666,6 +677,7 @@ struct dwarf2_per_objfile gdb::optional<std::queue<dwarf2_queue_item>> queue; private: + /* Hold the corresponding compunit_symtab for each CU or TU. This is indexed by dwarf2_per_cu_data::index. A NULL value means that the CU/TU has not been expanded yet. */ @@ -684,8 +696,8 @@ private: /* Map from the objfile-independent dwarf2_per_cu_data instances to the corresponding objfile-dependent dwarf2_cu instances. */ - std::unordered_map<dwarf2_per_cu_data *, - std::unique_ptr<dwarf2_cu>> m_dwarf2_cus; + std::unordered_map<dwarf2_per_cu_data *, std::unique_ptr<dwarf2_cu>> + m_dwarf2_cus; }; /* Get the dwarf2_per_objfile associated to OBJFILE. */ @@ -713,53 +725,55 @@ CORE_ADDR dwarf2_read_addr_index (dwarf2_per_cu_data *per_cu, dwarf2_locexpr_baton->data has lifetime of PER_CU->DWARF2_PER_OBJFILE->OBJFILE. */ -struct dwarf2_locexpr_baton dwarf2_fetch_die_loc_sect_off - (sect_offset sect_off, dwarf2_per_cu_data *per_cu, - dwarf2_per_objfile *per_objfile, - gdb::function_view<CORE_ADDR ()> get_frame_pc, - bool resolve_abstract_p = false); +struct dwarf2_locexpr_baton +dwarf2_fetch_die_loc_sect_off (sect_offset sect_off, + dwarf2_per_cu_data *per_cu, + dwarf2_per_objfile *per_objfile, + gdb::function_view<CORE_ADDR ()> get_frame_pc, + bool resolve_abstract_p = false); /* Like dwarf2_fetch_die_loc_sect_off, but take a CU offset. */ -struct dwarf2_locexpr_baton dwarf2_fetch_die_loc_cu_off - (cu_offset offset_in_cu, dwarf2_per_cu_data *per_cu, - dwarf2_per_objfile *per_objfile, - gdb::function_view<CORE_ADDR ()> get_frame_pc); +struct dwarf2_locexpr_baton +dwarf2_fetch_die_loc_cu_off (cu_offset offset_in_cu, + dwarf2_per_cu_data *per_cu, + dwarf2_per_objfile *per_objfile, + gdb::function_view<CORE_ADDR ()> get_frame_pc); /* If the DIE at SECT_OFF in PER_CU has a DW_AT_const_value, return a pointer to the constant bytes and set LEN to the length of the data. If memory is needed, allocate it on OBSTACK. If the DIE does not have a DW_AT_const_value, return NULL. */ -extern const gdb_byte *dwarf2_fetch_constant_bytes - (sect_offset sect_off, dwarf2_per_cu_data *per_cu, - dwarf2_per_objfile *per_objfile, obstack *obstack, - LONGEST *len); +extern const gdb_byte * +dwarf2_fetch_constant_bytes (sect_offset sect_off, dwarf2_per_cu_data *per_cu, + dwarf2_per_objfile *per_objfile, obstack *obstack, + LONGEST *len); /* Return the type of the die at SECT_OFF in PER_CU. Return NULL if no valid type for this die is found. If VAR_NAME is non-null, and if the DIE in question is a variable declaration (definitions are excluded), then *VAR_NAME is set to the variable's name. */ -struct type *dwarf2_fetch_die_type_sect_off - (sect_offset sect_off, dwarf2_per_cu_data *per_cu, - dwarf2_per_objfile *per_objfile, - const char **var_name = nullptr); +struct type *dwarf2_fetch_die_type_sect_off (sect_offset sect_off, + dwarf2_per_cu_data *per_cu, + dwarf2_per_objfile *per_objfile, + const char **var_name = nullptr); /* When non-zero, dump line number entries as they are read in. */ extern unsigned int dwarf_line_debug; /* Dwarf2 sections that can be accessed by dwarf2_get_section_info. */ -enum dwarf2_section_enum { +enum dwarf2_section_enum +{ DWARF2_DEBUG_FRAME, DWARF2_EH_FRAME }; extern void dwarf2_get_section_info (struct objfile *, - enum dwarf2_section_enum, - asection **, const gdb_byte **, - bfd_size_type *); + enum dwarf2_section_enum, asection **, + const gdb_byte **, bfd_size_type *); /* Return true if the producer of the inferior is clang. */ extern bool producer_is_clang (struct dwarf2_cu *cu); |