#include "language.h"
#include "complaints.h"
#include "demangle.h"
+#include "inferior.h" /* for write_pc */
#include <obstack.h>
#include <assert.h>
}
}
-void
-sort_all_symtab_syms ()
-{
- register struct symtab *s;
- register struct objfile *objfile;
-
- for (objfile = object_files; objfile != NULL; objfile = objfile -> next)
- {
- for (s = objfile -> symtabs; s != NULL; s = s -> next)
- {
- sort_symtab_syms (s);
- }
- }
-}
-
/* Make a copy of the string at PTR with SIZE characters in the symbol obstack
(and add a null character at the end in the copy).
Returns the address of the copy. */
}
}
+/* Get current entry point address. */
+
+CORE_ADDR
+entry_point_address()
+{
+ return symfile_objfile ? symfile_objfile->ei.entry_point : 0;
+}
+
/* Remember the lowest-addressed loadable section we've seen.
This function is called via bfd_map_over_sections. */
else if (0 == bfd_get_section_name (objfile->obfd, lowest_sect)
|| !STREQ (".text",
bfd_get_section_name (objfile->obfd, lowest_sect)))
- warning ("Lowest section in %s is %s at 0x%x",
+ warning ("Lowest section in %s is %s at 0x%lx",
objfile->name,
bfd_section_name (objfile->obfd, lowest_sect),
- bfd_section_vma (objfile->obfd, lowest_sect));
+ (unsigned long) bfd_section_vma (objfile->obfd, lowest_sect));
if (lowest_sect)
addr -= bfd_section_vma (objfile->obfd, lowest_sect);
(*objfile -> sf -> sym_init) (objfile);
clear_complaints (1, verbo);
- /* If objfile->sf->sym_offsets doesn't set this, we don't care
- (currently). */
- objfile->num_sections = 0; /* krp-FIXME: why zero? */
section_offsets = (*objfile -> sf -> sym_offsets) (objfile, addr);
objfile->section_offsets = section_offsets;
(*objfile -> sf -> sym_read) (objfile, section_offsets, mainline);
- /* Don't allow char * to have a typename (else would get caddr_t.) */
- /* Ditto void *. FIXME should do this for all the builtin types. */
+ /* Don't allow char * to have a typename (else would get caddr_t).
+ Ditto void *. FIXME: Check whether this is now done by all the
+ symbol readers themselves (many of them now do), and if so remove
+ it from here. */
TYPE_NAME (lookup_pointer_type (builtin_type_char)) = 0;
TYPE_NAME (lookup_pointer_type (builtin_type_void)) = 0;
/* Is this really necessary? I guess it gives the user something
to look at during a long download. */
- printf_filtered ("Loading section %s, size 0x%x vma 0x%x\n",
+ printf_filtered ("Loading section %s, size 0x%lx vma 0x%lx\n",
bfd_get_section_name (loadfile_bfd, s),
- size, vma);
+ (unsigned long) size, (unsigned long) vma);
bfd_get_section_contents (loadfile_bfd, s, buffer, 0, size);
text_addr = parse_and_eval_address (args);
if (!query ("add symbol table from file \"%s\" at text_addr = %s?\n",
- name, local_hex_string (text_addr)))
+ name, local_hex_string ((unsigned long)text_addr)))
error ("Not confirmed.");
symbol_file_add (name, 0, text_addr, 0, mapped, readnow);
This routine should then walk down each partial symbol table
and see if the symbol table that it originates from has been changed */
-the_big_top:
for (objfile = object_files; objfile; objfile = objfile->next) {
if (objfile->obfd) {
#ifdef IBM6000_TARGET
continue;
}
new_modtime = new_statbuf.st_mtime;
- if (new_modtime != objfile->mtime) {
- printf_filtered ("`%s' has changed; re-reading symbols.\n",
- objfile->name);
- /* FIXME, this should use a different command...that would only
- affect this objfile's symbols, and would reset objfile->mtime.
- (objfile->mtime = new_modtime;)
- HOWEVER, that command isn't written yet -- so call symbol_file_
- command, and restart the scan from the top, because it munges
- the object_files list. */
- symbol_file_command (objfile->name, 0);
- reread_one = 1;
- goto the_big_top; /* Start over. */
- }
+ if (new_modtime != objfile->mtime)
+ {
+ struct cleanup *old_cleanups;
+ struct section_offsets *offsets;
+ int num_offsets;
+ int section_offsets_size;
+
+ printf_filtered ("`%s' has changed; re-reading symbols.\n",
+ objfile->name);
+
+ /* There are various functions like symbol_file_add,
+ symfile_bfd_open, syms_from_objfile, etc., which might
+ appear to do what we want. But they have various other
+ effects which we *don't* want. So we just do stuff
+ ourselves. We don't worry about mapped files (for one thing,
+ any mapped file will be out of date). */
+
+ /* 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);
+ /* We need to do this whenever any symbols go away. */
+ make_cleanup (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
+ BFD without closing the descriptor. */
+ if (!bfd_close (objfile->obfd))
+ error ("Can't close BFD for %s.", objfile->name);
+ objfile->obfd = bfd_openr (objfile->name, gnutarget);
+ if (objfile->obfd == NULL)
+ error ("Can't open %s to read symbols.", objfile->name);
+ /* bfd_openr sets cacheable to true, which is what we want. */
+ if (!bfd_check_format (objfile->obfd, bfd_object))
+ error ("Can't read symbols from %s: %s.", objfile->name,
+ bfd_errmsg (bfd_error));
+
+ /* Save the offsets, we will nuke them with the rest of the
+ psymbol_obstack. */
+ num_offsets = objfile->num_sections;
+ section_offsets_size =
+ sizeof (struct section_offsets)
+ + sizeof (objfile->section_offsets->offsets) * num_offsets;
+ offsets = (struct section_offsets *) alloca (section_offsets_size);
+ memcpy (offsets, objfile->section_offsets, section_offsets_size);
+
+ /* Nuke all the state that we will re-read. Much of the following
+ code which sets things to NULL really is necessary to tell
+ other parts of GDB that there is nothing currently there. */
+
+ /* FIXME: Do we have to free a whole linked list, or is this
+ enough? */
+ if (objfile->global_psymbols.list)
+ mfree (objfile->md, objfile->global_psymbols.list);
+ objfile->global_psymbols.list = NULL;
+ objfile->global_psymbols.size = 0;
+ if (objfile->static_psymbols.list)
+ mfree (objfile->md, objfile->static_psymbols.list);
+ objfile->static_psymbols.list = NULL;
+ objfile->static_psymbols.size = 0;
+
+ /* Free the obstacks for non-reusable objfiles */
+ obstack_free (&objfile -> psymbol_obstack, 0);
+ obstack_free (&objfile -> symbol_obstack, 0);
+ obstack_free (&objfile -> type_obstack, 0);
+ objfile->sections = NULL;
+ objfile->symtabs = NULL;
+ objfile->psymtabs = NULL;
+ objfile->free_psymtabs = NULL;
+ objfile->msymbols = NULL;
+ objfile->minimal_symbol_count= 0;
+ objfile->fundamental_types = NULL;
+ if (objfile -> sf != NULL)
+ {
+ (*objfile -> sf -> sym_finish) (objfile);
+ }
+
+ /* We never make this a mapped file. */
+ objfile -> md = NULL;
+ /* obstack_specify_allocation also initializes the obstack so
+ it is empty. */
+ obstack_specify_allocation (&objfile -> psymbol_obstack, 0, 0,
+ xmalloc, free);
+ obstack_specify_allocation (&objfile -> symbol_obstack, 0, 0,
+ xmalloc, free);
+ obstack_specify_allocation (&objfile -> type_obstack, 0, 0,
+ xmalloc, free);
+ if (build_objfile_section_table (objfile))
+ {
+ error ("Can't find the file sections in `%s': %s",
+ objfile -> name, bfd_errmsg (bfd_error));
+ }
+
+ /* We use the same section offsets as from last time. I'm not
+ sure whether that is always correct for shared libraries. */
+ objfile->section_offsets = (struct section_offsets *)
+ obstack_alloc (&objfile -> psymbol_obstack, section_offsets_size);
+ memcpy (objfile->section_offsets, offsets, section_offsets_size);
+ objfile->num_sections = num_offsets;
+
+ /* What the hell is sym_new_init for, anyway? The concept of
+ 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_init) (objfile);
+ clear_complaints (1, 1);
+ /* The "mainline" parameter is a hideous hack; I think leaving it
+ zero is OK since dbxread.c also does what it needs to do if
+ objfile->global_psymbols.size is 0. */
+ (*objfile->sf->sym_read) (objfile, objfile->section_offsets, 0);
+ objfile -> flags |= OBJF_SYMS;
+
+ /* We're done reading the symbol file; finish off complaints. */
+ clear_complaints (0, 1);
+
+ /* Getting new symbols may change our opinion about what is
+ frameless. */
+
+ reinit_frame_cache ();
+
+ /* Discard cleanups as symbol reading was successful. */
+ discard_cleanups (old_cleanups);
+
+ /* If the mtime has changed between the time we set new_modtime
+ and now, we *want* this to be out of date, so don't call stat
+ again now. */
+ objfile->mtime = new_modtime;
+ reread_one = 1;
+ }
}
}
if (reread_one)
- breakpoint_re_set ();
+ clear_symtab_users ();
}
\f
; /* Get default */
else if (0 == (c = strrchr (filename, '.')))
; /* Get default. */
- else if(STREQ(c,".mod"))
+ else if (STREQ(c,".mod"))
return language_m2;
- else if(STREQ(c,".c"))
+ else if (STREQ(c,".c"))
return language_c;
- else if(STREQ(c,".cc") || STREQ(c,".C"))
+ else if (STREQ (c,".cc") || STREQ (c,".C") || STREQ (c, ".cxx"))
return language_cplus;
- else if(STREQ(c,".ch") || STREQ(c,".c186") || STREQ(c,".c286"))
+ else if (STREQ (c,".ch") || STREQ (c,".c186") || STREQ (c,".c286"))
return language_chill;
return language_unknown; /* default */
set_default_breakpoint (0, 0, 0, 0);
current_source_symtab = 0;
current_source_line = 0;
+ clear_pc_function_cache ();
}
/* clear_symtab_users_once:
projects / binutils-gdb.git / blobdiff