diff options
Diffstat (limited to 'gdb/symfile.h')
| -rw-r--r-- | gdb/symfile.h | 76 |
1 files changed, 68 insertions, 8 deletions
diff --git a/gdb/symfile.h b/gdb/symfile.h index 5d1c1c6..67226b9 100644 --- a/gdb/symfile.h +++ b/gdb/symfile.h @@ -1,5 +1,5 @@ /* Definitions for reading symbol files into GDB. - Copyright (C) 1990 Free Software Foundation, Inc. + Copyright (C) 1990, 1991 Free Software Foundation, Inc. This file is part of GDB. @@ -19,8 +19,36 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* This file requires that you first include "bfd.h". */ -/* Data structures and function definitions for dealing with - symbol table reading from files. */ + +/* Structure for keeping track of object files. + + One of these is allocated for each object file we access, e.g. the + exec_file, symbol_file, and any shared library object files. */ + +struct objfile { + /* All struct objfile's are chained together by their next pointers. */ + struct objfile *next; + + /* Each objfile points to a chain of struct symtabs derived from this + object file. They are chained by their objfile_chain pointers, and + each one points back to this struct objfile. */ + struct symtab *symtabs; + + /* Ditto for psymtabs. */ + struct partial_symtab *psymtabs; + + /* The object file's name. Malloc'd; free it if you free this struct. */ + char *name; + + /* The object file's BFD. Can be null, in which case bfd_open (name) and + put the result here. */ + bfd *obfd; + + /* The modification timestamp of the object file, as of the last time + we read its symbols. */ + long mtime; +}; + /* Structure to keep track of symbol reading functions for various object file types. */ @@ -83,14 +111,41 @@ struct sym_fns { in whatever module implements the functions pointed to; an initializer calls add_symtab_fns to add them to the global chain. */ struct sym_fns *next; + + /* objfile + is the "struct objfile" for the object file being read. */ + struct objfile *objfile; }; +extern void extend_psymbol_list(); + +/* Add any kind of symbol to a psymbol_allocation_list. */ + +#define ADD_PSYMBOL_VT_TO_LIST(NAME, NAMELENGTH, NAMESPACE, CLASS, LIST, VALUE, VT)\ + do { \ + register struct partial_symbol *psym; \ + if ((LIST).next >= (LIST).list + (LIST).size) \ + extend_psymbol_list(&(LIST)); \ + psym = (LIST).next++; \ + \ + SYMBOL_NAME (psym) = (char *) obstack_alloc (psymbol_obstack, \ + (NAMELENGTH) + 1); \ + strncpy (SYMBOL_NAME (psym), (NAME), (NAMELENGTH)); \ + SYMBOL_NAME (psym)[(NAMELENGTH)] = '\0'; \ + SYMBOL_NAMESPACE (psym) = (NAMESPACE); \ + SYMBOL_CLASS (psym) = (CLASS); \ + VT (psym) = (VALUE); \ + } while (0); + /* Functions */ extern struct symtab *allocate_symtab (); +extern struct objfile *allocate_objfile (); +extern void free_objfile (); extern int free_named_symtabs (); extern void fill_in_vptr_fieldno (); extern void add_symtab_fns (); +extern void syms_from_objfile (); /* Functions for dealing with the misc "function" vector, really a misc address<->symbol mapping vector for things we don't have debug symbols @@ -121,13 +176,18 @@ extern char *obconcat (); /* Variables */ -/* File name symbols were loaded from. */ +/* The object file that the main symbol table was loaded from (e.g. the + argument to the "symbol-file" or "file" command). */ + +extern struct objfile *symfile_objfile; + +/* Where execution starts in symfile */ -extern char *symfile; +CORE_ADDR entry_point; -/* The modification date of the file when they were loaded. */ +/* Root of object file struct chain. */ -extern long /* really time_t */ symfile_mtime; +struct objfile *object_files; /* Vectors of all partial symbols read in from file. */ @@ -156,5 +216,5 @@ extern struct complaint complaint_root[1]; /* Functions that handle complaints. (in symfile.c) */ -int complain(); +void complain(); void clear_complaints(); |