X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fbuildsym.h;h=9a4856d234d604f142aac1814feeb7c461213928;hb=3c65e5b31cb5587773deff979099435b9687a0f4;hp=99897fdcd91f9d3105b7ab44d5dc0d475abd67b7;hpb=72b9f47f1ebefa7618abb0c142811af5b5b823e4;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/buildsym.h b/gdb/buildsym.h index 99897fdcd9..9a4856d234 100644 --- a/gdb/buildsym.h +++ b/gdb/buildsym.h @@ -1,7 +1,5 @@ /* Build symbol tables in GDB's internal format. - Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1995, 1996, - 1997, 1998, 1999, 2000, 2002, 2003, 2007, 2008, 2009, 2010 - Free Software Foundation, Inc. + Copyright (C) 1986-2018 Free Software Foundation, Inc. This file is part of GDB. @@ -24,6 +22,8 @@ struct objfile; struct symbol; struct addrmap; +struct compunit_symtab; +enum language; /* This module provides definitions used for creating and adding to the symbol table. These routines are called from various symbol- @@ -38,61 +38,31 @@ struct addrmap; this technique. */ struct block; +struct pending_block; + +struct dynamic_prop; #ifndef EXTERN #define EXTERN extern #endif -#define HASHSIZE 127 /* Size of things hashed via - hashname() */ - -/* 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. */ - -EXTERN char *last_source_file; - -/* 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. */ - -EXTERN CORE_ADDR last_source_start_addr; - /* The list of sub-source-files within the current individual compilation. Each file gets its own symtab with its own linetable and associated info, but they all share one blockvector. */ struct subfile - { - struct subfile *next; - char *name; - char *dirname; - struct linetable *line_vector; - int line_vector_length; - enum language language; - char *producer; - char *debugformat; - struct symtab *symtab; - }; - -EXTERN struct subfile *current_subfile; - -/* Global variable which, when set, indicates that we are processing a - .o file compiled with gcc */ - -EXTERN unsigned char processing_gcc_compilation; - -/* When set, we are processing a .o file compiled by sun acc. This is - misnamed; it refers to all stabs-in-elf implementations which use - N_UNDF the way Sun does, including Solaris gcc. Hopefully all - stabs-in-elf implementations ever invented will choose to be - compatible. */ - -EXTERN unsigned char processing_acc_compilation; - -/* Count symbols as they are processed, for error messages. */ - -EXTERN unsigned int symnum; +{ + struct subfile *next; + /* Space for this is malloc'd. */ + char *name; + /* Space for this is malloc'd. */ + struct linetable *line_vector; + int line_vector_length; + /* The "containing" compunit. */ + struct buildsym_compunit *buildsym_compunit; + enum language language; + struct symtab *symtab; +}; /* Record the symbols defined for each context in a list. We don't create a struct block for the context until we know how long to @@ -121,14 +91,6 @@ EXTERN struct pending *global_symbols; EXTERN struct pending *local_symbols; -/* func params local to lexical context */ - -EXTERN struct pending *param_symbols; - -/* "using" directives local to lexical context. */ - -EXTERN struct using_direct *using_directives; - /* Stack representing unclosed lexical contexts (that will become blocks, eventually). */ @@ -138,13 +100,9 @@ struct context_stack struct pending *locals; - /* Pending func params at the time we entered */ - - struct pending *params; - /* Pending using directives at the time we entered. */ - struct using_direct *using_directives; + struct using_direct *local_using_directives; /* Pointer into blocklist as of entry */ @@ -154,11 +112,16 @@ struct context_stack struct symbol *name; + /* Expression that computes the frame base of the lexically enclosing + function, if any. NULL otherwise. */ + + struct dynamic_prop *static_link; + /* PC where this context starts */ CORE_ADDR start_addr; - /* Temp slot for exception handling. */ + /* Temp slot for exception handling. */ CORE_ADDR end_addr; @@ -168,140 +131,150 @@ struct context_stack }; -EXTERN struct context_stack *context_stack; +/* The type of the record_line function. */ +typedef void (record_line_ftype) (struct subfile *subfile, int line, + CORE_ADDR pc); -/* Index of first unused entry in context stack. */ + -EXTERN int context_stack_depth; +extern void add_symbol_to_list (struct symbol *symbol, + struct pending **listhead); -/* Currently allocated size of context stack. */ +extern struct symbol *find_symbol_in_list (struct pending *list, + char *name, int length); -EXTERN int context_stack_size; +extern struct block *finish_block (struct symbol *symbol, + struct pending **listhead, + struct pending_block *old_blocks, + const struct dynamic_prop *static_link, + CORE_ADDR start, + CORE_ADDR end); -/* Non-zero if the context stack is empty. */ -#define outermost_context_p() (context_stack_depth == 0) +extern void record_block_range (struct block *, + CORE_ADDR start, CORE_ADDR end_inclusive); -/* Nonzero if within a function (so symbols should be local, if - nothing says specifically). */ +class scoped_free_pendings +{ +public: -EXTERN int within_function; + scoped_free_pendings (); + ~scoped_free_pendings (); -/* List of blocks already made (lexical contexts already closed). - This is used at the end to make the blockvector. */ + DISABLE_COPY_AND_ASSIGN (scoped_free_pendings); +}; -struct pending_block - { - struct pending_block *next; - struct block *block; - }; +extern void start_subfile (const char *name); -/* 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. */ +extern void patch_subfile_names (struct subfile *subfile, const char *name); -EXTERN struct pending_block *pending_blocks; - +extern void push_subfile (); -struct subfile_stack - { - struct subfile_stack *next; - char *name; - }; +extern const char *pop_subfile (); -EXTERN struct subfile_stack *subfile_stack; +extern struct block *end_symtab_get_static_block (CORE_ADDR end_addr, + int expandable, + int required); -#define next_symbol_text(objfile) (*next_symbol_text_func)(objfile) +extern struct compunit_symtab * + end_symtab_from_static_block (struct block *static_block, + int section, int expandable); -/* Function to invoke get the next symbol. Return the symbol name. */ +extern struct compunit_symtab *end_symtab (CORE_ADDR end_addr, int section); -EXTERN char *(*next_symbol_text_func) (struct objfile *); +extern struct compunit_symtab *end_expandable_symtab (CORE_ADDR end_addr, + int section); -/* Vector of types defined so far, indexed by their type numbers. - Used for both stabs and coff. (In newer sun systems, dbx uses a - pair of numbers in parens, as in "(SUBFILENUM,NUMWITHINSUBFILE)". - Then these numbers must be translated through the type_translations - hash table to get the index into the type vector.) */ +extern void augment_type_symtab (void); -EXTERN struct type **type_vector; +extern void buildsym_init (); -/* Number of elements allocated for type_vector currently. */ +extern struct context_stack *push_context (int desc, CORE_ADDR valu); -EXTERN int type_vector_length; +extern struct context_stack pop_context (); -/* Initial size of type vector. Is realloc'd larger if needed, and - realloc'd down to the size actually used, when completed. */ +extern record_line_ftype record_line; -#define INITIAL_TYPE_VECTOR_LENGTH 160 +extern struct compunit_symtab *start_symtab (struct objfile *objfile, + const char *name, + const char *comp_dir, + CORE_ADDR start_addr, + enum language language); -extern void add_free_pendings (struct pending *list); +extern void restart_symtab (struct compunit_symtab *cust, + const char *name, CORE_ADDR start_addr); -extern void add_symbol_to_list (struct symbol *symbol, - struct pending **listhead); +/* Record the name of the debug format in the current pending symbol + table. FORMAT must be a string with a lifetime at least as long as + the symtab's objfile. */ -extern struct symbol *find_symbol_in_list (struct pending *list, - char *name, int length); +extern void record_debugformat (const char *format); -extern struct block *finish_block (struct symbol *symbol, - struct pending **listhead, - struct pending_block *old_blocks, - CORE_ADDR start, CORE_ADDR end, - struct objfile *objfile); +/* Record the name of the debuginfo producer (usually the compiler) in + the current pending symbol table. PRODUCER must be a string with a + lifetime at least as long as the symtab's objfile. */ -extern void record_block_range (struct block *, - CORE_ADDR start, CORE_ADDR end_inclusive); +extern void record_producer (const char *producer); -extern void really_free_pendings (void *dummy); +/* Set the name of the last source file. NAME is copied by this + function. */ -extern void start_subfile (const char *name, const char *dirname); +extern void set_last_source_file (const char *name); -extern void patch_subfile_names (struct subfile *subfile, char *name); +/* Fetch the name of the last source file. */ -extern void push_subfile (void); +extern const char *get_last_source_file (void); -extern char *pop_subfile (void); +/* Return the compunit symtab object. + It is only valid to call this between calls to start_symtab and the + end_symtab* functions. */ -extern struct symtab *end_symtab (CORE_ADDR end_addr, - struct objfile *objfile, int section); +extern struct compunit_symtab *buildsym_compunit_symtab (void); -/* Defined in stabsread.c. */ +/* Return the macro table. + Initialize it if this is the first use. + It is only valid to call this between calls to start_symtab and the + end_symtab* functions. */ -extern void scan_file_globals (struct objfile *objfile); +extern struct macro_table *get_macro_table (void); -extern void buildsym_new_init (void); +/* Set the last source start address. Can only be used between + start_symtab and end_symtab* calls. */ -extern void buildsym_init (void); +extern void set_last_source_start_addr (CORE_ADDR addr); -extern struct context_stack *push_context (int desc, CORE_ADDR valu); +/* Get the last source start address. Can only be used between + start_symtab and end_symtab* calls. */ -extern struct context_stack *pop_context (void); +extern CORE_ADDR get_last_source_start_addr (); -extern void record_line (struct subfile *subfile, int line, CORE_ADDR pc); +/* Return the local using directives. */ -extern void start_symtab (char *name, char *dirname, CORE_ADDR start_addr); +extern struct using_direct **get_local_using_directives (); -extern int hashname (char *name); +/* Set the list of local using directives. */ -extern void free_pending_blocks (void); +extern void set_local_using_directives (struct using_direct *new_local); -/* FIXME: Note that this is used only in buildsym.c and dstread.c, - which should be fixed to not need direct access to - record_pending_block. */ +/* Return the global using directives. */ -extern void record_pending_block (struct objfile *objfile, - struct block *block, - struct pending_block *opblock); +extern struct using_direct **get_global_using_directives (); -extern void record_debugformat (char *format); +/* True if the context stack is empty. */ -extern void record_producer (const char *producer); +extern bool outermost_context_p (); + +/* Return the top of the context stack, or nullptr if there is an + entry. */ + +extern struct context_stack *get_current_context_stack (); + +/* Return the context stack depth. */ + +extern int get_context_stack_depth (); -extern void merge_symbol_lists (struct pending **srclist, - struct pending **targetlist); +/* Return the current subfile. */ -/* The macro table for the compilation unit whose symbols we're - currently reading. All the symtabs for this CU will point to this. */ -EXTERN struct macro_table *pending_macros; +extern struct subfile *get_current_subfile (); #undef EXTERN