diff options
Diffstat (limited to 'gdb/buildsym.h')
-rw-r--r-- | gdb/buildsym.h | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/gdb/buildsym.h b/gdb/buildsym.h index 220d7f4..49086d3 100644 --- a/gdb/buildsym.h +++ b/gdb/buildsym.h @@ -108,6 +108,294 @@ struct context_stack }; +/* Buildsym's counterpart to struct compunit_symtab. */ + +struct buildsym_compunit +{ + /* Start recording information about a primary source file (IOW, not an + included source file). + COMP_DIR is the directory in which the compilation unit was compiled + (or NULL if not known). */ + + buildsym_compunit (struct objfile *objfile_, const char *name, + const char *comp_dir_, enum language language_, + CORE_ADDR last_addr); + + /* Reopen an existing compunit_symtab so that additional symbols can + be added to it. Arguments are as for the main constructor. CUST + is the expandable compunit_symtab to be reopened. */ + + buildsym_compunit (struct objfile *objfile_, const char *name, + const char *comp_dir_, enum language language_, + CORE_ADDR last_addr, struct compunit_symtab *cust) + : objfile (objfile_), + m_last_source_file (name == nullptr ? nullptr : xstrdup (name)), + comp_dir (comp_dir_ == nullptr ? nullptr : xstrdup (comp_dir_)), + compunit_symtab (cust), + language (language_), + m_last_source_start_addr (last_addr) + { + } + + ~buildsym_compunit (); + + DISABLE_COPY_AND_ASSIGN (buildsym_compunit); + + void set_last_source_file (const char *name) + { + char *new_name = name == NULL ? NULL : xstrdup (name); + m_last_source_file.reset (new_name); + } + + const char *get_last_source_file () + { + return m_last_source_file.get (); + } + + struct macro_table *get_macro_table (); + + struct macro_table *release_macros () + { + struct macro_table *result = m_pending_macros; + m_pending_macros = nullptr; + return result; + } + + /* This function is called to discard any pending blocks. */ + + void free_pending_blocks () + { + m_pending_block_obstack.clear (); + m_pending_blocks = nullptr; + } + + struct block *finish_block (struct symbol *symbol, + struct pending_block *old_blocks, + const struct dynamic_prop *static_link, + CORE_ADDR start, CORE_ADDR end); + + void record_block_range (struct block *block, + CORE_ADDR start, CORE_ADDR end_inclusive); + + void start_subfile (const char *name); + + void patch_subfile_names (struct subfile *subfile, const char *name); + + void push_subfile (); + + const char *pop_subfile (); + + void record_line (struct subfile *subfile, int line, CORE_ADDR pc); + + struct compunit_symtab *get_compunit_symtab () + { + return compunit_symtab; + } + + void set_last_source_start_addr (CORE_ADDR addr) + { + m_last_source_start_addr = addr; + } + + CORE_ADDR get_last_source_start_addr () + { + return m_last_source_start_addr; + } + + struct using_direct **get_local_using_directives () + { + return &m_local_using_directives; + } + + void set_local_using_directives (struct using_direct *new_local) + { + m_local_using_directives = new_local; + } + + struct using_direct **get_global_using_directives () + { + return &m_global_using_directives; + } + + bool outermost_context_p () const + { + return m_context_stack.empty (); + } + + struct context_stack *get_current_context_stack () + { + if (m_context_stack.empty ()) + return nullptr; + return &m_context_stack.back (); + } + + int get_context_stack_depth () const + { + return m_context_stack.size (); + } + + struct subfile *get_current_subfile () + { + return m_current_subfile; + } + + struct pending **get_local_symbols () + { + return &m_local_symbols; + } + + struct pending **get_file_symbols () + { + return &m_file_symbols; + } + + struct pending **get_global_symbols () + { + return &m_global_symbols; + } + + void record_debugformat (const char *format) + { + debugformat = format; + } + + void record_producer (const char *producer) + { + this->producer = producer; + } + + struct context_stack *push_context (int desc, CORE_ADDR valu); + + struct context_stack pop_context (); + + struct block *end_symtab_get_static_block (CORE_ADDR end_addr, + int expandable, int required); + + struct compunit_symtab *end_symtab_from_static_block + (struct block *static_block, int section, int expandable); + + struct compunit_symtab *end_symtab (CORE_ADDR end_addr, int section); + + struct compunit_symtab *end_expandable_symtab (CORE_ADDR end_addr, + int section); + + void augment_type_symtab (); + +private: + + void record_pending_block (struct block *block, struct pending_block *opblock); + + struct block *finish_block_internal (struct symbol *symbol, + struct pending **listhead, + struct pending_block *old_blocks, + const struct dynamic_prop *static_link, + CORE_ADDR start, CORE_ADDR end, + int is_global, int expandable); + + struct blockvector *make_blockvector (); + + void watch_main_source_file_lossage (); + + struct compunit_symtab *end_symtab_with_blockvector + (struct block *static_block, int section, int expandable); + + /* The objfile we're reading debug info from. */ + struct objfile *objfile; + + /* List of subfiles (source files). + Files are added to the front of the list. + This is important mostly for the language determination hacks we use, + which iterate over previously added files. */ + struct subfile *subfiles = nullptr; + + /* The subfile of the main source file. */ + struct subfile *main_subfile = nullptr; + + /* Name of source file whose symbol data we are now processing. This + comes from a symbol of type N_SO for stabs. For DWARF it comes + from the DW_AT_name attribute of a DW_TAG_compile_unit DIE. */ + gdb::unique_xmalloc_ptr<char> m_last_source_file; + + /* E.g., DW_AT_comp_dir if DWARF. Space for this is malloc'd. */ + gdb::unique_xmalloc_ptr<char> comp_dir; + + /* Space for this is not malloc'd, and is assumed to have at least + the same lifetime as objfile. */ + const char *producer = nullptr; + + /* Space for this is not malloc'd, and is assumed to have at least + the same lifetime as objfile. */ + const char *debugformat = nullptr; + + /* The compunit we are building. */ + struct compunit_symtab *compunit_symtab = nullptr; + + /* Language of this compunit_symtab. */ + enum language language; + + /* The macro table for the compilation unit whose symbols we're + currently reading. */ + struct macro_table *m_pending_macros = nullptr; + + /* True if symtab has line number info. This prevents an otherwise + empty symtab from being tossed. */ + bool m_have_line_numbers = false; + + /* Core address of start of text of current source file. This too + comes from the N_SO symbol. For Dwarf it typically comes from the + DW_AT_low_pc attribute of a DW_TAG_compile_unit DIE. */ + CORE_ADDR m_last_source_start_addr; + + /* Stack of subfile names. */ + std::vector<const char *> m_subfile_stack; + + /* The "using" directives local to lexical context. */ + struct using_direct *m_local_using_directives = nullptr; + + /* Global "using" directives. */ + struct using_direct *m_global_using_directives = nullptr; + + /* The stack of contexts that are pushed by push_context and popped + by pop_context. */ + std::vector<struct context_stack> m_context_stack; + + struct subfile *m_current_subfile = nullptr; + + /* The mutable address map for the compilation unit whose symbols + we're currently reading. The symtabs' shared blockvector will + point to a fixed copy of this. */ + struct addrmap *m_pending_addrmap = nullptr; + + /* The obstack on which we allocate pending_addrmap. + If pending_addrmap is NULL, this is uninitialized; otherwise, it is + initialized (and holds pending_addrmap). */ + auto_obstack m_pending_addrmap_obstack; + + /* True if we recorded any ranges in the addrmap that are different + from those in the blockvector already. We set this to false when + we start processing a symfile, and if it's still false at the + end, then we just toss the addrmap. */ + bool m_pending_addrmap_interesting = false; + + /* An obstack used for allocating pending blocks. */ + auto_obstack m_pending_block_obstack; + + /* Pointer to the head of a linked list of symbol blocks which have + already been finalized (lexical contexts already closed) and which + are just waiting to be built into a blockvector when finalizing the + associated symtab. */ + struct pending_block *m_pending_blocks = nullptr; + + /* Pending static symbols and types at the top level. */ + struct pending *m_file_symbols = nullptr; + + /* Pending global functions and variables. */ + struct pending *m_global_symbols = nullptr; + + /* Pending symbols that are local to the lexical context. */ + struct pending *m_local_symbols = nullptr; +}; + /* The type of the record_line function. */ typedef void (record_line_ftype) (struct subfile *subfile, int line, CORE_ADDR pc); |