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215 lines
6.8 KiB
C++
215 lines
6.8 KiB
C++
/* Include file for stabs debugging format support functions.
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Copyright (C) 1986-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef STABSREAD_H
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#define STABSREAD_H
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struct objfile;
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enum language;
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/* Definitions, prototypes, etc for stabs debugging format support
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functions. */
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#define HASHSIZE 127 /* Size of things hashed via
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hashname(). */
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/* Compute a small integer hash code for the given name. */
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extern int hashname (const char *name);
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/* Count symbols as they are processed, for error messages. */
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extern unsigned int symnum;
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#define next_symbol_text(objfile) (*next_symbol_text_func)(objfile)
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/* Function to invoke get the next symbol. Return the symbol name. */
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extern const char *(*next_symbol_text_func) (struct objfile *);
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/* Global variable which, when set, indicates that we are processing a
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.o file compiled with gcc */
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extern unsigned char processing_gcc_compilation;
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/* Nonzero if within a function (so symbols should be local, if
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nothing says specifically). */
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extern int within_function;
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/* Hash table of global symbols whose values are not known yet.
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They are chained thru the SYMBOL_VALUE_CHAIN, since we don't
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have the correct data for that slot yet.
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The use of the LOC_BLOCK code in this chain is nonstandard--
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it refers to a FORTRAN common block rather than the usual meaning, and
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the such LOC_BLOCK symbols use their fields in nonstandard ways. */
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extern struct symbol *global_sym_chain[HASHSIZE];
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extern void common_block_start (const char *, struct objfile *);
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extern void common_block_end (struct objfile *);
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/* Kludge for xcoffread.c */
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struct pending_stabs
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{
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int count;
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int length;
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char *stab[1];
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};
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extern struct pending_stabs *global_stabs;
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/* The type code that process_one_symbol saw on its previous invocation.
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Used to detect pairs of N_SO symbols. */
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extern int previous_stab_code;
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/* Support for Sun changes to dbx symbol format. */
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/* For each identified header file, we have a table of types defined
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in that header file.
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header_files maps header file names to their type tables.
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It is a vector of n_header_files elements.
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Each element describes one header file.
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It contains a vector of types.
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Sometimes it can happen that the same header file produces
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different results when included in different places.
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This can result from conditionals or from different
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things done before including the file.
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When this happens, there are multiple entries for the file in this table,
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one entry for each distinct set of results.
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The entries are distinguished by the INSTANCE field.
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The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is
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used to match header-file references to their corresponding data. */
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struct header_file
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{
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/* Name of header file */
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char *name;
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/* Numeric code distinguishing instances of one header file that
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produced different results when included. It comes from the
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N_BINCL or N_EXCL. */
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int instance;
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/* Pointer to vector of types */
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struct type **vector;
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/* Allocated length (# elts) of that vector */
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int length;
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};
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/* The table of header_files of this OBJFILE. */
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#define HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->header_files)
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/* The actual length of HEADER_FILES. */
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#define N_HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->n_header_files)
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/* The allocated lengh of HEADER_FILES. */
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#define N_ALLOCATED_HEADER_FILES(OBJFILE) \
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(DBX_SYMFILE_INFO (OBJFILE)->n_allocated_header_files)
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/* Within each object file, various header files are assigned numbers.
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A type is defined or referred to with a pair of numbers
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(FILENUM,TYPENUM) where FILENUM is the number of the header file
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and TYPENUM is the number within that header file.
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TYPENUM is the index within the vector of types for that header file.
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FILENUM == 0 is special; it refers to the main source of the object file,
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and not to any header file. FILENUM != 1 is interpreted by looking it up
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in the following table, which contains indices in header_files. */
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extern int *this_object_header_files;
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extern int n_this_object_header_files;
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extern int n_allocated_this_object_header_files;
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extern void cleanup_undefined_stabs_types (struct objfile *);
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extern long read_number (char **, int);
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extern struct symbol *define_symbol (CORE_ADDR, const char *, int, int,
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struct objfile *);
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extern void stabsread_init (void);
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extern void stabsread_new_init (void);
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extern void start_stabs (void);
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extern void end_stabs (void);
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extern void finish_global_stabs (struct objfile *objfile);
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/* Functions exported by dbxread.c. These are not in stabsread.c because
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they are only used by some stabs readers. */
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extern struct partial_symtab *dbx_end_psymtab
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(struct objfile *objfile, struct partial_symtab *pst,
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const char **include_list, int num_includes,
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int capping_symbol_offset, CORE_ADDR capping_text,
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struct partial_symtab **dependency_list, int number_dependencies,
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int textlow_not_set);
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extern void process_one_symbol (int, int, CORE_ADDR, const char *,
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const struct section_offsets *,
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struct objfile *, enum language);
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extern void elfstab_build_psymtabs (struct objfile *objfile,
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asection *stabsect,
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file_ptr stabstroffset,
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unsigned int stabstrsize);
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extern void coffstab_build_psymtabs
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(struct objfile *objfile,
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CORE_ADDR textaddr, unsigned int textsize,
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const std::vector<asection *> &stabs,
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file_ptr stabstroffset, unsigned int stabstrsize);
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extern void stabsect_build_psymtabs (struct objfile *objfile, char *stab_name,
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char *stabstr_name, char *text_name);
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extern int symbol_reference_defined (const char **);
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extern void ref_add (int, struct symbol *, const char *, CORE_ADDR);
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extern struct symbol *ref_search (int);
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extern void free_header_files (void);
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extern void init_header_files (void);
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/* Scan through all of the global symbols defined in the object file,
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assigning values to the debugging symbols that need to be assigned
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to. Get these symbols from the minimal symbol table. */
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extern void scan_file_globals (struct objfile *objfile);
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#endif /* STABSREAD_H */
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