diff options
Diffstat (limited to 'gdb/symfile.c')
| -rw-r--r-- | gdb/symfile.c | 79 |
1 files changed, 43 insertions, 36 deletions
diff --git a/gdb/symfile.c b/gdb/symfile.c index 1964417..f6ecf29 100644 --- a/gdb/symfile.c +++ b/gdb/symfile.c @@ -4,19 +4,19 @@ This file is part of GDB. -GDB is free software; you can redistribute it and/or modify +This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 1, or (at your option) -any later version. +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. -GDB is distributed in the hope that it will be useful, +This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License -along with GDB; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <stdio.h> #include "defs.h" @@ -53,7 +53,10 @@ static void clear_symtab_users_once(); struct sym_fns *symtab_fns = NULL; /* Saves the sym_fns of the current symbol table, so we can call - the right sym_discard function when we free it. */ + the right XXX_new_init function when we free it. FIXME. This + should be extended to calling the new_init function for each + existing symtab or psymtab, since the main symbol file and + subsequent added symbol files can have different types. */ static struct sym_fns *symfile_fns; @@ -87,6 +90,15 @@ long /* really time_t */ symfile_mtime = 0; struct psymbol_allocation_list global_psymbols = {0}, static_psymbols = {0}; +/* Flag for whether user will be reloading symbols multiple times. + Defaults to ON for VxWorks, otherwise OFF. */ + +#ifdef SYMBOL_RELOADING_DEFAULT +int symbol_reloading = SYMBOL_RELOADING_DEFAULT; +#else +int symbol_reloading = 0; +#endif + /* Structure to manage complaints about symbol file contents. */ struct complaint complaint_root[1] = { @@ -364,15 +376,7 @@ psymtab_to_symtab (pst) (*pst->read_symtab) (pst); } - /* Search through list for correct name. */ - for (result = symtab_list; result; result = result->next) - if (!strcmp (result->filename, pst->filename)) - { - pst->symtab = result; /* Remember where it was. */ - return result; - } - - return 0; + return pst->symtab; } /* Process a symbol file, as either the main file or as a dynamically @@ -422,7 +426,7 @@ symbol_file_add (name, from_tty, addr, mainline) if (from_tty) { - printf_filtered ("Reading symbol data from %s...", name); + printf_filtered ("Reading symbols from %s...", name); wrap_here (""); fflush (stdout); } @@ -607,31 +611,22 @@ load_command (arg, from_tty) target_load (arg, from_tty); } -/* This function runs the add_syms command of our current target. */ - -void -add_symbol_file_command (args, from_tty) - char *args; - int from_tty; -{ - /* Getting new symbols may change our opinion about what is - frameless. */ - reinit_frame_cache (); - - target_add_syms (args, from_tty); -} - -/* This function allows the addition of incrementally linked object files. */ +/* This function allows the addition of incrementally linked object files. + It does not modify any state in the target, only in the debugger. */ /* ARGSUSED */ void -add_syms_addr_command (arg_string, from_tty) - char* arg_string; +add_symbol_file_command (arg_string, from_tty) + char *arg_string; int from_tty; { char *name; CORE_ADDR text_addr; + /* Getting new symbols may change our opinion about what is + frameless. */ + reinit_frame_cache (); + if (arg_string == 0) error ("add-symbol-file takes a file name and an address"); @@ -709,9 +704,10 @@ fill_in_vptr_fieldno (type) /* Functions to handle complaints during symbol reading. */ /* How many complaints about a particular thing should be printed before - we stop whining about it? */ + we stop whining about it? Default is no whining at all, since so many + systems have ill-constructed symbol files. */ -static unsigned stop_whining = 1; +static unsigned stop_whining = 0; /* Print a complaint about the input symbols, and link the complaint block into a chain for later handling. Result is 1 if the complaint was @@ -864,6 +860,10 @@ free_named_symtabs (name) struct blockvector *bv; int blewit = 0; + /* We only wack things if the symbol-reload switch is set. */ + if (!symbol_reloading) + return 0; + /* Some symbol formats have trouble providing file names... */ if (name == 0 || *name == '\0') return 0; @@ -957,6 +957,13 @@ for access from GDB."); &setlist), &showlist); + add_show_from_set + (add_set_cmd ("symbol-reloading", class_support, var_boolean, + (char *)&symbol_reloading, + "Set dynamic symbol table reloading multiple times in one run.", + &setlist), + &showlist); + obstack_init (symbol_obstack); obstack_init (psymbol_obstack); } |