/* GDB routines for manipulating objfiles.
- Copyright (C) 1992-2015 Free Software Foundation, Inc.
+ Copyright (C) 1992-2018 Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
#include "addrmap.h"
#include "arch-utils.h"
#include "exec.h"
-#include "observer.h"
+#include "observable.h"
#include "complaints.h"
#include "psymtab.h"
#include "solist.h"
#include "gdb_bfd.h"
#include "btrace.h"
+#include "common/pathstuff.h"
+
+#include <vector>
/* Keep a registry of per-objfile data-pointers required by other GDB
modules. */
{
storage
= ((struct objfile_per_bfd_storage *)
- bfd_zalloc (abfd, sizeof (struct objfile_per_bfd_storage)));
+ bfd_alloc (abfd, sizeof (struct objfile_per_bfd_storage)));
+ /* objfile_per_bfd_storage is not trivially constructible, must
+ call the ctor manually. */
+ storage = new (storage) objfile_per_bfd_storage ();
set_bfd_data (abfd, objfiles_bfd_data, storage);
}
else
- storage = OBSTACK_ZALLOC (&objfile->objfile_obstack,
- struct objfile_per_bfd_storage);
+ storage
+ = obstack_new<objfile_per_bfd_storage> (&objfile->objfile_obstack);
/* Look up the gdbarch associated with the BFD. */
if (abfd != NULL)
storage->gdbarch = gdbarch_from_bfd (abfd);
- obstack_init (&storage->storage_obstack);
storage->filename_cache = bcache_xmalloc (NULL, NULL);
storage->macro_cache = bcache_xmalloc (NULL, NULL);
storage->language_of_main = language_unknown;
bcache_xfree (storage->macro_cache);
if (storage->demangled_names_hash)
htab_delete (storage->demangled_names_hash);
- obstack_free (&storage->storage_obstack, 0);
+ storage->~objfile_per_bfd_storage ();
}
/* A wrapper for free_objfile_per_bfd_storage that can be passed as a
slot = htab_find_slot (objfile->static_links, &lookup_entry, INSERT);
gdb_assert (*slot == NULL);
- entry = (struct static_link_htab_entry *) obstack_alloc
- (&objfile->objfile_obstack, sizeof (*entry));
+ entry = XOBNEW (&objfile->objfile_obstack, static_link_htab_entry);
entry->block = block;
entry->static_link = static_link;
*slot = (void *) entry;
add_to_objfile_sections_full (objfile->obfd, bfd_ind_section_ptr, objfile, 1);
}
-/* Given a pointer to an initialized bfd (ABFD) and some flag bits
- allocate a new objfile struct, fill it in as best we can, link it
- into the list of all known objfiles, and return a pointer to the
- new objfile struct.
+/* Given a pointer to an initialized bfd (ABFD) and some flag bits,
+ initialize the new objfile as best we can and link it into the list
+ of all known objfiles.
NAME should contain original non-canonicalized filename or other
identifier as entered by user. If there is no better source use
requests for specific operations. Other bits like OBJF_SHARED are
simply copied through to the new objfile flags member. */
-/* NOTE: carlton/2003-02-04: This function is called with args NULL, 0
- by jv-lang.c, to create an artificial objfile used to hold
- information about dynamically-loaded Java classes. Unfortunately,
- that branch of this function doesn't get tested very frequently, so
- it's prone to breakage. (E.g. at one time the name was set to NULL
- in that situation, which broke a loop over all names in the dynamic
- library loader.) If you change this function, please try to leave
- things in a consistent state even if abfd is NULL. */
-
-struct objfile *
-allocate_objfile (bfd *abfd, const char *name, int flags)
+objfile::objfile (bfd *abfd, const char *name, objfile_flags flags_)
+ : flags (flags_),
+ pspace (current_program_space),
+ obfd (abfd),
+ psymbol_cache (psymbol_bcache_init ())
{
- struct objfile *objfile;
- char *expanded_name;
+ const char *expanded_name;
- objfile = XCNEW (struct objfile);
- objfile->psymbol_cache = psymbol_bcache_init ();
/* We could use obstack_specify_allocation here instead, but
gdb_obstack.h specifies the alloc/dealloc functions. */
- obstack_init (&objfile->objfile_obstack);
+ obstack_init (&objfile_obstack);
- objfile_alloc_data (objfile);
+ objfile_alloc_data (this);
+ gdb::unique_xmalloc_ptr<char> name_holder;
if (name == NULL)
{
gdb_assert (abfd == NULL);
gdb_assert ((flags & OBJF_NOT_FILENAME) != 0);
- expanded_name = xstrdup ("<<anonymous objfile>>");
+ expanded_name = "<<anonymous objfile>>";
}
else if ((flags & OBJF_NOT_FILENAME) != 0
|| is_target_filename (name))
- expanded_name = xstrdup (name);
+ expanded_name = name;
else
- expanded_name = gdb_abspath (name);
- objfile->original_name
- = (char *) obstack_copy0 (&objfile->objfile_obstack,
+ {
+ name_holder = gdb_abspath (name);
+ expanded_name = name_holder.get ();
+ }
+ original_name
+ = (char *) obstack_copy0 (&objfile_obstack,
expanded_name,
strlen (expanded_name));
- xfree (expanded_name);
/* Update the per-objfile information that comes from the bfd, ensuring
that any data that is reference is saved in the per-objfile data
region. */
- objfile->obfd = abfd;
gdb_bfd_ref (abfd);
if (abfd != NULL)
{
- objfile->mtime = bfd_get_mtime (abfd);
+ mtime = bfd_get_mtime (abfd);
/* Build section table. */
- build_objfile_section_table (objfile);
+ build_objfile_section_table (this);
}
- objfile->per_bfd = get_objfile_bfd_data (objfile, abfd);
- objfile->pspace = current_program_space;
-
- terminate_minimal_symbol_table (objfile);
+ per_bfd = get_objfile_bfd_data (this, abfd);
- /* Initialize the section indexes for this objfile, so that we can
- later detect if they are used w/o being properly assigned to. */
-
- objfile->sect_index_text = -1;
- objfile->sect_index_data = -1;
- objfile->sect_index_bss = -1;
- objfile->sect_index_rodata = -1;
+ terminate_minimal_symbol_table (this);
/* Add this file onto the tail of the linked list of other such files. */
- objfile->next = NULL;
if (object_files == NULL)
- object_files = objfile;
+ object_files = this;
else
{
struct objfile *last_one;
for (last_one = object_files;
last_one->next;
last_one = last_one->next);
- last_one->next = objfile;
+ last_one->next = this;
}
- /* Save passed in flag bits. */
- objfile->flags |= flags;
-
/* Rebuild section map next time we need it. */
- get_objfile_pspace_data (objfile->pspace)->new_objfiles_available = 1;
-
- return objfile;
+ get_objfile_pspace_data (pspace)->new_objfiles_available = 1;
}
/* Retrieve the gdbarch associated with OBJFILE. */
for (child = objfile->separate_debug_objfile; child;)
{
struct objfile *next_child = child->separate_debug_objfile_link;
- free_objfile (child);
+ delete child;
child = next_child;
}
}
/* Destroy an objfile and all the symtabs and psymtabs under it. */
-void
-free_objfile (struct objfile *objfile)
+objfile::~objfile ()
{
/* First notify observers that this objfile is about to be freed. */
- observer_notify_free_objfile (objfile);
+ gdb::observers::free_objfile.notify (this);
/* Free all separate debug objfiles. */
- free_objfile_separate_debug (objfile);
+ free_objfile_separate_debug (this);
- if (objfile->separate_debug_objfile_backlink)
+ if (separate_debug_objfile_backlink)
{
/* We freed the separate debug file, make sure the base objfile
doesn't reference it. */
struct objfile *child;
- child = objfile->separate_debug_objfile_backlink->separate_debug_objfile;
+ child = separate_debug_objfile_backlink->separate_debug_objfile;
- if (child == objfile)
+ if (child == this)
{
- /* OBJFILE is the first child. */
- objfile->separate_debug_objfile_backlink->separate_debug_objfile =
- objfile->separate_debug_objfile_link;
+ /* THIS is the first child. */
+ separate_debug_objfile_backlink->separate_debug_objfile =
+ separate_debug_objfile_link;
}
else
{
- /* Find OBJFILE in the list. */
+ /* Find THIS in the list. */
while (1)
{
- if (child->separate_debug_objfile_link == objfile)
+ if (child->separate_debug_objfile_link == this)
{
child->separate_debug_objfile_link =
- objfile->separate_debug_objfile_link;
+ separate_debug_objfile_link;
break;
}
child = child->separate_debug_objfile_link;
}
}
}
-
+
/* Remove any references to this objfile in the global value
lists. */
- preserve_values (objfile);
+ preserve_values (this);
/* It still may reference data modules have associated with the objfile and
the symbol file data. */
- forget_cached_source_info_for_objfile (objfile);
+ forget_cached_source_info_for_objfile (this);
- breakpoint_free_objfile (objfile);
- btrace_free_objfile (objfile);
+ breakpoint_free_objfile (this);
+ btrace_free_objfile (this);
/* First do any symbol file specific actions required when we are
finished with a particular symbol file. Note that if the objfile
freeing things which are valid only during this particular gdb
execution, or leaving them to be reused during the next one. */
- if (objfile->sf != NULL)
- {
- (*objfile->sf->sym_finish) (objfile);
- }
+ if (sf != NULL)
+ (*sf->sym_finish) (this);
/* Discard any data modules have associated with the objfile. The function
- still may reference objfile->obfd. */
- objfile_free_data (objfile);
+ still may reference obfd. */
+ objfile_free_data (this);
- if (objfile->obfd)
- gdb_bfd_unref (objfile->obfd);
+ if (obfd)
+ gdb_bfd_unref (obfd);
else
- free_objfile_per_bfd_storage (objfile->per_bfd);
+ free_objfile_per_bfd_storage (per_bfd);
/* Remove it from the chain of all objfiles. */
- unlink_objfile (objfile);
+ unlink_objfile (this);
- if (objfile == symfile_objfile)
+ if (this == symfile_objfile)
symfile_objfile = NULL;
/* Before the symbol table code was redone to make it easier to
FIXME: It's not clear which of these are supposed to persist
between expressions and which ought to be reset each time. */
expression_context_block = NULL;
- innermost_block = NULL;
+ innermost_block.reset ();
/* Check to see if the current_source_symtab belongs to this objfile,
and if so, call clear_current_source_symtab_and_line. */
{
struct symtab_and_line cursal = get_current_source_symtab_and_line ();
- if (cursal.symtab && SYMTAB_OBJFILE (cursal.symtab) == objfile)
+ if (cursal.symtab && SYMTAB_OBJFILE (cursal.symtab) == this)
clear_current_source_symtab_and_line ();
}
- if (objfile->global_psymbols.list)
- xfree (objfile->global_psymbols.list);
- if (objfile->static_psymbols.list)
- xfree (objfile->static_psymbols.list);
/* Free the obstacks for non-reusable objfiles. */
- psymbol_bcache_free (objfile->psymbol_cache);
- obstack_free (&objfile->objfile_obstack, 0);
+ psymbol_bcache_free (psymbol_cache);
+ obstack_free (&objfile_obstack, 0);
/* Rebuild section map next time we need it. */
- get_objfile_pspace_data (objfile->pspace)->section_map_dirty = 1;
+ get_objfile_pspace_data (pspace)->section_map_dirty = 1;
/* Free the map for static links. There's no need to free static link
themselves since they were allocated on the objstack. */
- if (objfile->static_links != NULL)
- htab_delete (objfile->static_links);
-
- /* The last thing we do is free the objfile struct itself. */
- xfree (objfile);
-}
-
-static void
-do_free_objfile_cleanup (void *obj)
-{
- free_objfile ((struct objfile *) obj);
-}
-
-struct cleanup *
-make_cleanup_free_objfile (struct objfile *obj)
-{
- return make_cleanup (do_free_objfile_cleanup, obj);
+ if (static_links != NULL)
+ htab_delete (static_links);
}
/* Free all the object files at once and clean up their users. */
ALL_OBJFILES_SAFE (objfile, temp)
{
- free_objfile (objfile);
+ delete objfile;
}
clear_symtab_users (0);
}
objfile_relocate1 (struct objfile *objfile,
const struct section_offsets *new_offsets)
{
- struct obj_section *s;
struct section_offsets *delta =
((struct section_offsets *)
alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections)));
- int i;
int something_changed = 0;
- for (i = 0; i < objfile->num_sections; ++i)
+ for (int i = 0; i < objfile->num_sections; ++i)
{
delta->offsets[i] =
ANOFFSET (new_offsets, i) - ANOFFSET (objfile->section_offsets, i);
ALL_OBJFILE_FILETABS (objfile, cust, s)
{
struct linetable *l;
- int i;
/* First the line table. */
l = SYMTAB_LINETABLE (s);
if (l)
{
- for (i = 0; i < l->nitems; ++i)
+ for (int i = 0; i < l->nitems; ++i)
l->item[i].pc += ANOFFSET (delta,
COMPUNIT_BLOCK_LINE_SECTION
(cust));
addrmap_relocate (BLOCKVECTOR_MAP (bv),
ANOFFSET (delta, block_line_section));
- for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i)
+ for (int i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i)
{
struct block *b;
struct symbol *sym;
BLOCK_START (b) += ANOFFSET (delta, block_line_section);
BLOCK_END (b) += ANOFFSET (delta, block_line_section);
+ if (BLOCK_RANGES (b) != nullptr)
+ for (int j = 0; j < BLOCK_NRANGES (b); j++)
+ {
+ BLOCK_RANGE_START (b, j)
+ += ANOFFSET (delta, block_line_section);
+ BLOCK_RANGE_END (b, j) += ANOFFSET (delta, block_line_section);
+ }
+
/* We only want to iterate over the local symbols, not any
symbols in included symtabs. */
ALL_DICT_SYMBOLS (BLOCK_DICT (b), iter, sym)
}
}
+ /* This stores relocated addresses and so must be cleared. This
+ will cause it to be recreated on demand. */
+ objfile->psymbol_map.clear ();
+
/* Relocate isolated symbols. */
{
struct symbol *iter;
relocate_one_symbol (iter, objfile, delta);
}
- if (objfile->psymtabs_addrmap)
- addrmap_relocate (objfile->psymtabs_addrmap,
- ANOFFSET (delta, SECT_OFF_TEXT (objfile)));
-
- if (objfile->sf)
- objfile->sf->qf->relocate (objfile, new_offsets, delta);
-
{
int i;
get_objfile_pspace_data (objfile->pspace)->section_map_dirty = 1;
/* Update the table in exec_ops, used to read memory. */
+ struct obj_section *s;
ALL_OBJFILE_OSECTIONS (objfile, s)
{
int idx = s - objfile->sections;
debug_objfile;
debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile))
{
- struct section_addr_info *objfile_addrs;
- struct section_offsets *new_debug_offsets;
- struct cleanup *my_cleanups;
-
- objfile_addrs = build_section_addr_info_from_objfile (objfile);
- my_cleanups = make_cleanup (xfree, objfile_addrs);
+ section_addr_info objfile_addrs
+ = build_section_addr_info_from_objfile (objfile);
/* Here OBJFILE_ADDRS contain the correct absolute addresses, the
relative ones must be already created according to debug_objfile. */
- addr_info_make_relative (objfile_addrs, debug_objfile->obfd);
+ addr_info_make_relative (&objfile_addrs, debug_objfile->obfd);
gdb_assert (debug_objfile->num_sections
== gdb_bfd_count_sections (debug_objfile->obfd));
- new_debug_offsets =
- ((struct section_offsets *)
- xmalloc (SIZEOF_N_SECTION_OFFSETS (debug_objfile->num_sections)));
- make_cleanup (xfree, new_debug_offsets);
- relative_addr_info_to_section_offsets (new_debug_offsets,
+ std::vector<struct section_offsets>
+ new_debug_offsets (SIZEOF_N_SECTION_OFFSETS (debug_objfile->num_sections));
+ relative_addr_info_to_section_offsets (new_debug_offsets.data (),
debug_objfile->num_sections,
objfile_addrs);
- changed |= objfile_relocate1 (debug_objfile, new_debug_offsets);
-
- do_cleanups (my_cleanups);
+ changed |= objfile_relocate1 (debug_objfile, new_debug_offsets.data ());
}
/* Relocate breakpoints as necessary, after things are relocated. */
be soon. */
if (!(objf->flags & OBJF_USERLOADED) && (objf->flags & OBJF_SHARED))
- free_objfile (objf);
+ delete objf;
}
}
struct gdbarch *const gdbarch = get_objfile_arch (objf1);
- complaint (&symfile_complaints,
- _("unexpected overlap between:\n"
+ complaint (_("unexpected overlap between:\n"
" (A) section `%s' from `%s' [%s, %s)\n"
" (B) section `%s' from `%s' [%s, %s).\n"
"Will ignore section B"),
/* Return non-zero if PC is in a section called NAME. */
int
-pc_in_section (CORE_ADDR pc, char *name)
+pc_in_section (CORE_ADDR pc, const char *name)
{
struct obj_section *s;
int retval = 0;
/* See comments in objfiles.h. */
-void
+scoped_restore_tmpl<int>
inhibit_section_map_updates (struct program_space *pspace)
{
- get_objfile_pspace_data (pspace)->inhibit_updates = 1;
-}
-
-/* See comments in objfiles.h. */
-
-void
-resume_section_map_updates (struct program_space *pspace)
-{
- get_objfile_pspace_data (pspace)->inhibit_updates = 0;
-}
-
-/* See comments in objfiles.h. */
-
-void
-resume_section_map_updates_cleanup (void *arg)
-{
- resume_section_map_updates ((struct program_space *) arg);
+ return scoped_restore_tmpl<int>
+ (&get_objfile_pspace_data (pspace)->inhibit_updates, 1);
}
/* Return 1 if ADDR maps into one of the sections of OBJFILE and 0
return NULL;
}
-/* Provide a prototype to silence -Wmissing-prototypes. */
-extern initialize_file_ftype _initialize_objfiles;
-
void
_initialize_objfiles (void)
{
projects / deliverable / binutils-gdb.git / blobdiff