diff options
Diffstat (limited to 'gdb/symfile.h')
| -rw-r--r-- | gdb/symfile.h | 47 |
1 files changed, 28 insertions, 19 deletions
diff --git a/gdb/symfile.h b/gdb/symfile.h index 6271a72..3c968f6 100644 --- a/gdb/symfile.h +++ b/gdb/symfile.h @@ -23,10 +23,18 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* This file requires that you first include "bfd.h". */ +/* Partial symbols are stored in the psymbol_cache and pointers to them + are kept in a dynamically grown array that is obtained from malloc and + grown as necessary via realloc. Each objfile typically has two of these, + one for global symbols and one for static symbols. Although this adds + a level of indirection for storing or accessing the partial symbols, + it allows us to throw away duplicate psymbols and set all pointers + to the single saved instance. */ + struct psymbol_allocation_list { - struct partial_symbol *list; - struct partial_symbol *next; - int size; + struct partial_symbol **list; /* Pointer to first partial symbol pointer*/ + struct partial_symbol **next; /* Pointer to next avail storage for pointer */ + int size; /* Number of symbols */ }; /* Structure to keep track of symbol reading functions for various @@ -116,21 +124,22 @@ extend_psymbol_list PARAMS ((struct psymbol_allocation_list *, #define ADD_PSYMBOL_VT_TO_LIST(NAME,NAMELENGTH,NAMESPACE,CLASS,LIST,VALUE,VT,LANGUAGE, OBJFILE) \ do { \ register struct partial_symbol *psym; \ + char *buf = alloca ((NAMELENGTH) + 1); \ + struct partial_symbol psymbol; \ + memcpy (buf, (NAME), (NAMELENGTH)); \ + buf[(NAMELENGTH)] = '\0'; \ + SYMBOL_NAME (&psymbol) = bcache (buf, (NAMELENGTH) + 1, &(OBJFILE)->psymbol_cache); \ + VT (&psymbol) = (VALUE); \ + SYMBOL_SECTION (&psymbol) = 0; \ + SYMBOL_LANGUAGE (&psymbol) = (LANGUAGE); \ + PSYMBOL_NAMESPACE (&psymbol) = (NAMESPACE); \ + PSYMBOL_CLASS (&psymbol) = (CLASS); \ + SYMBOL_INIT_LANGUAGE_SPECIFIC (&psymbol, (LANGUAGE)); \ + psym = bcache (&psymbol, sizeof (struct partial_symbol), &(OBJFILE)->psymbol_cache); \ if ((LIST).next >= (LIST).list + (LIST).size) \ - extend_psymbol_list (&(LIST),(OBJFILE)); \ - psym = (LIST).next++; \ - SYMBOL_NAME (psym) = \ - (char *) obstack_alloc (&objfile->psymbol_obstack, \ - (NAMELENGTH) + 1); \ - memcpy (SYMBOL_NAME (psym), (NAME), (NAMELENGTH)); \ - SYMBOL_NAME (psym)[(NAMELENGTH)] = '\0'; \ - SYMBOL_NAMESPACE (psym) = (NAMESPACE); \ - SYMBOL_SECTION (psym) = 0; \ - PSYMBOL_CLASS (psym) = (CLASS); \ - VT (psym) = (VALUE); \ - SYMBOL_LANGUAGE (psym) = (LANGUAGE); \ - SYMBOL_INIT_LANGUAGE_SPECIFIC (psym, LANGUAGE); \ - OBJSTAT (objfile, n_psyms++); \ + extend_psymbol_list (&(LIST), (OBJFILE)); \ + *(LIST).next++ = psym; \ + OBJSTAT ((OBJFILE), n_psyms++); \ } while (0) /* Add a symbol with an integer value to a psymtab. */ @@ -174,8 +183,8 @@ new_symfile_objfile PARAMS ((struct objfile *, int, int)); extern struct partial_symtab * start_psymtab_common PARAMS ((struct objfile *, struct section_offsets *, char *, CORE_ADDR, - struct partial_symbol *, - struct partial_symbol *)); + struct partial_symbol **, + struct partial_symbol **)); /* Sorting your symbols for fast lookup or alphabetical printing. */ |