/* Generic symbol file reading for the GNU debugger, GDB.
- Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998
Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
#define O_BINARY 0
#endif
+#ifdef HPUXHPPA
+
+/* Some HP-UX related globals to clear when a new "main"
+ symbol file is loaded. HP-specific. */
+
+extern int hp_som_som_object_present;
+extern int hp_cxx_exception_support_initialized;
+#define RESET_HP_UX_GLOBALS() do {\
+ hp_som_som_object_present = 0; /* indicates HP-compiled code */ \
+ hp_cxx_exception_support_initialized = 0; /* must reinitialize exception stuff */ \
+ } while (0)
+#endif
+
int (*ui_load_progress_hook) PARAMS ((char *, unsigned long));
void (*pre_add_symbol_hook) PARAMS ((char *));
void (*post_add_symbol_hook) PARAMS ((void));
static int compare_symbols PARAMS ((const void *, const void *));
-static bfd *symfile_bfd_open PARAMS ((char *));
+bfd *symfile_bfd_open PARAMS ((char *));
static void find_sym_fns PARAMS ((struct objfile *));
static void decrement_reading_symtab PARAMS ((void *));
+static void overlay_invalidate_all PARAMS ((void));
+
+static int overlay_is_mapped PARAMS ((struct obj_section *));
+
+void list_overlays_command PARAMS ((char *, int));
+
+void map_overlay_command PARAMS ((char *, int));
+
+void unmap_overlay_command PARAMS ((char *, int));
+
+static void overlay_auto_command PARAMS ((char *, int));
+
+static void overlay_manual_command PARAMS ((char *, int));
+
+static void overlay_off_command PARAMS ((char *, int));
+
+static void overlay_load_command PARAMS ((char *, int));
+
+static void overlay_command PARAMS ((char *, int));
+
+static void simple_free_overlay_table PARAMS ((void));
+
+static void read_target_long_array PARAMS ((CORE_ADDR, unsigned int *, int));
+
+static int simple_read_overlay_table PARAMS ((void));
+
+static int simple_overlay_update_1 PARAMS ((struct obj_section *));
+
+void _initialize_symfile PARAMS ((void));
+
/* List of all available sym_fns. On gdb startup, each object file reader
calls add_symtab_fns() to register information on each format it is
prepared to read. */
int symbol_reloading = 0;
#endif
-/* If true, then shared library symbols will be added automatically
- when the inferior is created, new libraries are loaded, or when
- attaching to the inferior. This is almost always what users
+/* If non-zero, then on HP-UX (i.e., platforms that use somsolib.c),
+ this variable is interpreted as a threshhold. If adding a new
+ library's symbol table to those already known to the debugger would
+ exceed this threshhold, then the shlib's symbols are not added.
+
+ If non-zero on other platforms, shared library symbols will be added
+ automatically when the inferior is created, new libraries are loaded,
+ or when attaching to the inferior. This is almost always what users
will want to have happen; but for very large programs, the startup
time will be excessive, and so if this is a problem, the user can
clear this flag and then add the shared library symbols as needed.
Note that there is a potential for confusion, since if the shared
library symbols are not loaded, commands like "info fun" will *not*
- report all the functions that are actually present. */
+ report all the functions that are actually present.
+
+ Note that HP-UX interprets this variable to mean, "threshhold size
+ in megabytes, where zero means never add". Other platforms interpret
+ this variable to mean, "always add if non-zero, never add if zero."
+ */
int auto_solib_add = 1;
}
else
{
- return (STRCMP (st1 + 2, st2 + 2));
+ /* Note: I replaced the STRCMP line (commented out below)
+ * with a simpler "strcmp()" which compares the 2 strings
+ * from the beginning. (STRCMP is a macro which first compares
+ * the initial characters, then falls back on strcmp).
+ * The reason is that the STRCMP line was tickling a C compiler
+ * bug on HP-UX 10.30, which is avoided with the simpler
+ * code. The performance gain from the more complicated code
+ * is negligible, given that we have already checked the
+ * initial 2 characters above. I reported the compiler bug,
+ * and once it is fixed the original line can be put back. RT
+ */
+ /* return ( STRCMP (st1 + 2, st2 + 2)); */
+ return ( strcmp (st1, st2));
}
}
/* Make sure that partially constructed symbol tables will be cleaned up
if an error occurs during symbol reading. */
- old_chain = make_cleanup (free_objfile, objfile);
+ old_chain = make_cleanup ((make_cleanup_func) free_objfile, objfile);
if (mainline)
{
/* We will modify the main symbol table, make sure that all its users
will be cleaned up if an error occurs during symbol reading. */
- make_cleanup (clear_symtab_users, 0);
+ make_cleanup ((make_cleanup_func) clear_symtab_users, 0);
/* Since no error yet, throw away the old symbol table. */
as dynamically loaded code. If !mainline, ADDR is the address
where the text segment was loaded.
+ USER_LOADED is TRUE if the add-symbol-file command was how this
+ symbol file came to be processed.
+
+ IS_SOLIB is TRUE if this symbol file represents a solib, as discovered
+ by the target's implementation of the solib package.
+
Upon success, returns a pointer to the objfile that was added.
Upon failure, jumps back to command level (never returns). */
struct objfile *
-symbol_file_add (name, from_tty, addr, mainline, mapped, readnow)
+symbol_file_add (name, from_tty, addr, mainline, mapped, readnow, user_loaded, is_solib)
char *name;
int from_tty;
CORE_ADDR addr;
int mainline;
int mapped;
int readnow;
+ int user_loaded;
+ int is_solib;
{
struct objfile *objfile;
struct partial_symtab *psymtab;
&& !query ("Load new symbol table from \"%s\"? ", name))
error ("Not confirmed.");
- objfile = allocate_objfile (abfd, mapped);
+ objfile = allocate_objfile (abfd, mapped, user_loaded, is_solib);
/* If the objfile uses a mapped symbol file, and we have a psymtab for
it, then skip reading any symbols at this time. */
performed, or need to read an unmapped symbol table. */
if (from_tty || info_verbose)
{
- if (pre_add_symbol_hook)
- pre_add_symbol_hook (name);
- else
- {
- printf_filtered ("Reading symbols from %s...", name);
- wrap_here ("");
- gdb_flush (gdb_stdout);
- }
+ if (pre_add_symbol_hook)
+ pre_add_symbol_hook (name);
+ else
+ {
+ printf_filtered ("Reading symbols from %s...", name);
+ wrap_here ("");
+ gdb_flush (gdb_stdout);
+ }
}
syms_from_objfile (objfile, addr, mainline, from_tty);
- }
+ }
/* We now have at least a partial symbol table. Check to see if the
user requested that all symbols be read on initial access via either
symfile_objfile -> name))
error ("Not confirmed.");
free_all_objfiles ();
+
+ /* solib descriptors may have handles to objfiles. Since their
+ storage has just been released, we'd better wipe the solib
+ descriptors as well.
+ */
+#if defined(SOLIB_RESTART)
+ SOLIB_RESTART ();
+#endif
+
symfile_objfile = NULL;
if (from_tty)
{
printf_unfiltered ("No symbol file now.\n");
}
+#ifdef HPUXHPPA
+ RESET_HP_UX_GLOBALS ();
+#endif
}
else
{
{
nomem (0);
}
- cleanups = make_cleanup (freeargv, (char *) argv);
+ cleanups = make_cleanup ((make_cleanup_func) freeargv, (char *) argv);
while (*argv != NULL)
{
if (STREQ (*argv, "-mapped"))
if (text_relocation == (CORE_ADDR)0)
return;
else if (text_relocation == (CORE_ADDR)-1)
- symbol_file_add (name, from_tty, (CORE_ADDR)0, 1, mapped,
- readnow);
+ {
+ symbol_file_add (name, from_tty, (CORE_ADDR)0,
+ 1, mapped, readnow, 1, 0);
+#ifdef HPUXHPPA
+ RESET_HP_UX_GLOBALS ();
+#endif
+ }
else
symbol_file_add (name, from_tty, (CORE_ADDR)text_relocation,
- 0, mapped, readnow);
+ 0, mapped, readnow, 1, 0);
/* Getting new symbols may change our opinion about what is
frameless. */
{
error ("no symbol file name was specified");
}
+ TUIDO(((TuiOpaqueFuncPtr)tuiDisplayMainFunction));
do_cleanups (cleanups);
}
}
malloc'd` copy of NAME (tilde-expanded and made absolute).
In case of trouble, error() is called. */
-static bfd *
+bfd *
symfile_bfd_open (name)
char *name;
{
int desc;
char *absolute_name;
+
+
name = tilde_expand (name); /* Returns 1st new malloc'd copy */
/* Look down path for it, allocate 2nd new malloc'd copy. */
error ("\"%s\": can't read symbols: %s.", name,
bfd_errmsg (bfd_get_error ()));
}
-
return (sym_bfd);
}
/* FIXME: should be checking for errors from bfd_close (for one thing,
on error it does not free all the storage associated with the
bfd). */
- old_cleanups = make_cleanup (bfd_close, loadfile_bfd);
+ old_cleanups = make_cleanup ((make_cleanup_func) bfd_close, loadfile_bfd);
if (!bfd_check_format (loadfile_bfd, bfd_object))
{
}
/* FIXME-32x64: Assumes text_addr fits in a long. */
- if (!query ("add symbol table from file \"%s\" at text_addr = %s?\n",
- name, local_hex_string ((unsigned long)text_addr)))
+ if ((from_tty)
+ && (!query ("add symbol table from file \"%s\" at text_addr = %s?\n",
+ name, local_hex_string ((unsigned long)text_addr))))
error ("Not confirmed.");
- symbol_file_add (name, 0, text_addr, 0, mapped, readnow);
+ symbol_file_add (name, from_tty, text_addr, 0, mapped, readnow,
+ 1, /* user_loaded */
+ 0); /* We'll guess it's ! is_solib */
/* Getting new symbols may change our opinion about what is
frameless. */
/* If we get an error, blow away this objfile (not sure if
that is the correct response for things like shared
libraries). */
- old_cleanups = make_cleanup (free_objfile, objfile);
+ old_cleanups = make_cleanup ((make_cleanup_func) free_objfile,
+ objfile);
/* We need to do this whenever any symbols go away. */
- make_cleanup (clear_symtab_users, 0);
+ make_cleanup ((make_cleanup_func) clear_symtab_users, 0);
/* Clean up any state BFD has sitting around. We don't need
to close the descriptor but BFD lacks a way of closing the
distinguishing between the main file and additional files
in this way seems rather dubious. */
if (objfile == symfile_objfile)
- (*objfile->sf->sym_new_init) (objfile);
+ {
+ (*objfile->sf->sym_new_init) (objfile);
+#ifdef HPUXHPPA
+ RESET_HP_UX_GLOBALS ();
+#endif
+ }
(*objfile->sf->sym_init) (objfile);
clear_complaints (1, 1);
}
\f
+
+typedef struct {
+ char *ext;
+ enum language lang;
+} filename_language;
+
+static filename_language * filename_language_table;
+static int fl_table_size, fl_table_next;
+
+static void
+add_filename_language (ext, lang)
+ char *ext;
+ enum language lang;
+{
+ if (fl_table_next >= fl_table_size)
+ {
+ fl_table_size += 10;
+ filename_language_table = realloc (filename_language_table,
+ fl_table_size);
+ }
+
+ filename_language_table[fl_table_next].ext = strsave (ext);
+ filename_language_table[fl_table_next].lang = lang;
+ fl_table_next++;
+}
+
+static char *ext_args;
+
+static void
+set_ext_lang_command (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ int i;
+ char *cp = ext_args;
+ enum language lang;
+
+ /* First arg is filename extension, starting with '.' */
+ if (*cp != '.')
+ error ("'%s': Filename extension must begin with '.'", ext_args);
+
+ /* Find end of first arg. */
+ while (*cp && !isspace (*cp))
+ cp++;
+
+ if (*cp == '\0')
+ error ("'%s': two arguments required -- filename extension and language",
+ ext_args);
+
+ /* Null-terminate first arg */
+ *cp++ = '\0';
+
+ /* Find beginning of second arg, which should be a source language. */
+ while (*cp && isspace (*cp))
+ cp++;
+
+ if (*cp == '\0')
+ error ("'%s': two arguments required -- filename extension and language",
+ ext_args);
+
+ /* Lookup the language from among those we know. */
+ lang = language_enum (cp);
+
+ /* Now lookup the filename extension: do we already know it? */
+ for (i = 0; i < fl_table_next; i++)
+ if (0 == strcmp (ext_args, filename_language_table[i].ext))
+ break;
+
+ if (i >= fl_table_next)
+ {
+ /* new file extension */
+ add_filename_language (ext_args, lang);
+ }
+ else
+ {
+ /* redefining a previously known filename extension */
+
+ /* if (from_tty) */
+ /* query ("Really make files of type %s '%s'?", */
+ /* ext_args, language_str (lang)); */
+
+ free (filename_language_table[i].ext);
+ filename_language_table[i].ext = strsave (ext_args);
+ filename_language_table[i].lang = lang;
+ }
+}
+
+static void
+info_ext_lang_command (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ int i;
+
+ printf_filtered ("Filename extensions and the languages they represent:");
+ printf_filtered ("\n\n");
+ for (i = 0; i < fl_table_next; i++)
+ printf_filtered ("\t%s\t- %s\n",
+ filename_language_table[i].ext,
+ language_str (filename_language_table[i].lang));
+}
+
+static void
+init_filename_language_table ()
+{
+ if (fl_table_size == 0) /* protect against repetition */
+ {
+ fl_table_size = 20;
+ fl_table_next = 0;
+ filename_language_table =
+ xmalloc (fl_table_size * sizeof (*filename_language_table));
+ add_filename_language (".c", language_c);
+ add_filename_language (".C", language_cplus);
+ add_filename_language (".cc", language_cplus);
+ add_filename_language (".cp", language_cplus);
+ add_filename_language (".cpp", language_cplus);
+ add_filename_language (".cxx", language_cplus);
+ add_filename_language (".c++", language_cplus);
+ add_filename_language (".java", language_java);
+ add_filename_language (".class", language_java);
+ add_filename_language (".ch", language_chill);
+ add_filename_language (".c186", language_chill);
+ add_filename_language (".c286", language_chill);
+ add_filename_language (".f", language_fortran);
+ add_filename_language (".F", language_fortran);
+ add_filename_language (".s", language_asm);
+ add_filename_language (".S", language_asm);
+ }
+}
+
enum language
deduce_language_from_filename (filename)
char *filename;
{
- char *c;
-
- if (0 == filename)
- ; /* Get default */
- else if (0 == (c = strrchr (filename, '.')))
- ; /* Get default. */
- else if (STREQ (c, ".c"))
- return language_c;
- else if (STREQ (c, ".cc") || STREQ (c, ".C") || STREQ (c, ".cxx")
- || STREQ (c, ".cpp") || STREQ (c, ".cp") || STREQ (c, ".c++"))
- return language_cplus;
- else if (STREQ (c, ".java"))
- return language_java;
- else if (STREQ (c, ".ch") || STREQ (c, ".c186") || STREQ (c, ".c286"))
- return language_chill;
- else if (STREQ (c, ".f") || STREQ (c, ".F"))
- return language_fortran;
- else if (STREQ (c, ".mod"))
- return language_m2;
- else if (STREQ (c, ".s") || STREQ (c, ".S"))
- return language_asm;
-
- return language_unknown; /* default */
+ int i;
+ char *cp;
+
+ if (filename != NULL)
+ if ((cp = strrchr (filename, '.')) != NULL)
+ for (i = 0; i < fl_table_next; i++)
+ if (strcmp (cp, filename_language_table[i].ext) == 0)
+ return filename_language_table[i].lang;
+
+ return language_unknown;
}
\f
/* allocate_symtab:
symtab->dirname
symtab->free_code
symtab->free_ptr
- initialize any EXTRA_SYMTAB_INFO
possibly free_named_symtabs (symtab->filename);
*/
symtab -> next = objfile -> symtabs;
objfile -> symtabs = symtab;
+ /* FIXME: This should go away. It is only defined for the Z8000,
+ and the Z8000 definition of this macro doesn't have anything to
+ do with the now-nonexistent EXTRA_SYMTAB_INFO macro, it's just
+ here for convenience. */
#ifdef INIT_EXTRA_SYMTAB_INFO
INIT_EXTRA_SYMTAB_INFO (symtab);
#endif
OBJSTAT (objfile, n_psyms++);
}
+/* Add a symbol with a long value to a psymtab. This differs from
+ * add_psymbol_to_list above in taking both a mangled and a demangled
+ * name. */
+
+void
+add_psymbol_with_dem_name_to_list (name, namelength, dem_name, dem_namelength,
+ namespace, class, list, val, coreaddr, language, objfile)
+ char *name;
+ int namelength;
+ char *dem_name;
+ int dem_namelength;
+ namespace_enum namespace;
+ enum address_class class;
+ struct psymbol_allocation_list *list;
+ long val; /* Value as a long */
+ CORE_ADDR coreaddr; /* Value as a CORE_ADDR */
+ enum language language;
+ struct objfile *objfile;
+{
+ register struct partial_symbol *psym;
+ char *buf = alloca (namelength + 1);
+ /* psymbol is static so that there will be no uninitialized gaps in the
+ structure which might contain random data, causing cache misses in
+ bcache. */
+ static struct partial_symbol psymbol;
+
+ /* Create local copy of the partial symbol */
+
+ memcpy (buf, name, namelength);
+ buf[namelength] = '\0';
+ SYMBOL_NAME (&psymbol) = bcache (buf, namelength + 1, &objfile->psymbol_cache);
+
+ buf = alloca (dem_namelength + 1);
+ memcpy (buf, dem_name, dem_namelength);
+ buf[dem_namelength] = '\0';
+
+ switch (language)
+ {
+ case language_c:
+ case language_cplus:
+ SYMBOL_CPLUS_DEMANGLED_NAME (&psymbol) =
+ bcache (buf, dem_namelength + 1, &objfile->psymbol_cache);
+ break;
+ case language_chill:
+ SYMBOL_CHILL_DEMANGLED_NAME (&psymbol) =
+ bcache (buf, dem_namelength + 1, &objfile->psymbol_cache);
+
+ /* FIXME What should be done for the default case? Ignoring for now. */
+ }
+
+ /* val and coreaddr are mutually exclusive, one of them *will* be zero */
+ if (val != 0)
+ {
+ SYMBOL_VALUE (&psymbol) = val;
+ }
+ else
+ {
+ SYMBOL_VALUE_ADDRESS (&psymbol) = coreaddr;
+ }
+ SYMBOL_SECTION (&psymbol) = 0;
+ SYMBOL_LANGUAGE (&psymbol) = language;
+ PSYMBOL_NAMESPACE (&psymbol) = namespace;
+ PSYMBOL_CLASS (&psymbol) = class;
+ SYMBOL_INIT_LANGUAGE_SPECIFIC (&psymbol, language);
+
+ /* Stash the partial symbol away in the cache */
+ psym = bcache (&psymbol, sizeof (struct partial_symbol), &objfile->psymbol_cache);
+
+ /* Save pointer to partial symbol in psymtab, growing symtab if needed. */
+ if (list->next >= list->list + list->size)
+ {
+ extend_psymbol_list (list, objfile);
+ }
+ *list->next++ = psym;
+ OBJSTAT (objfile, n_psyms++);
+}
+
/* Initialize storage for partial symbols. */
void
lma = bfd_section_lma (objfile->obfd, osect->the_bfd_section);
size = bfd_get_section_size_before_reloc (osect->the_bfd_section);
name = bfd_section_name (objfile->obfd, osect->the_bfd_section);
- printf_filtered ("Section %s, loaded at %08x - %08x, ",
- name, lma, lma + size);
- printf_filtered ("mapped at %08x - %08x\n",
- vma, vma + size);
+
+ printf_filtered ("Section %s, loaded at ", name);
+ print_address_numeric (lma, 1, gdb_stdout);
+ puts_filtered (" - ");
+ print_address_numeric (lma + size, 1, gdb_stdout);
+ printf_filtered (", mapped at ");
+ print_address_numeric (vma, 1, gdb_stdout);
+ puts_filtered (" - ");
+ print_address_numeric (vma + size, 1, gdb_stdout);
+ puts_filtered ("\n");
+
nmapped ++;
}
if (nmapped == 0)
static void
overlay_auto_command (args, from_tty)
+ char *args;
+ int from_tty;
{
overlay_debugging = -1;
if (info_verbose)
static void
overlay_manual_command (args, from_tty)
+ char *args;
+ int from_tty;
{
overlay_debugging = 1;
if (info_verbose)
static void
overlay_off_command (args, from_tty)
+ char *args;
+ int from_tty;
{
- overlay_debugging = 0;
+ overlay_debugging = 0;
if (info_verbose)
printf_filtered ("Overlay debugging disabled.");
}
static void
overlay_load_command (args, from_tty)
+ char *args;
+ int from_tty;
{
if (target_overlay_update)
(*target_overlay_update) (NULL);
"Enable automatic overlay debugging.", &overlaylist);
add_cmd ("load-target", class_support, overlay_load_command,
"Read the overlay mapping state from the target.", &overlaylist);
+
+ /* Filename extension to source language lookup table: */
+ init_filename_language_table ();
+ c = add_set_cmd ("extension-language", class_files, var_string_noescape,
+ (char *) &ext_args,
+ "Set mapping between filename extension and source language.\n\
+Usage: set extension-language .foo bar",
+ &setlist);
+ c->function.cfunc = set_ext_lang_command;
+
+ add_info ("extensions", info_ext_lang_command,
+ "All filename extensions associated with a source language.");
}
projects / deliverable / binutils-gdb.git / blobdiff