/* 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. */
static void
objfiles_pspace_data_cleanup (struct program_space *pspace, void *arg)
{
- struct objfile_pspace_info *info = arg;
+ struct objfile_pspace_info *info = (struct objfile_pspace_info *) arg;
xfree (info->sections);
xfree (info);
{
struct objfile_pspace_info *info;
- info = program_space_data (pspace, objfiles_pspace_data);
+ info = ((struct objfile_pspace_info *)
+ program_space_data (pspace, objfiles_pspace_data));
if (info == NULL)
{
info = XCNEW (struct objfile_pspace_info);
struct objfile_per_bfd_storage *storage = NULL;
if (abfd != NULL)
- storage = bfd_data (abfd, objfiles_bfd_data);
+ storage = ((struct objfile_per_bfd_storage *)
+ bfd_data (abfd, objfiles_bfd_data));
if (storage == NULL)
{
enough that this seems reasonable. */
if (abfd != NULL && !gdb_bfd_requires_relocations (abfd))
{
- storage = bfd_zalloc (abfd, sizeof (struct objfile_per_bfd_storage));
+ storage
+ = ((struct objfile_per_bfd_storage *)
+ bfd_alloc (abfd, sizeof (struct 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 = (objfile_per_bfd_storage *)
+ obstack_alloc (&objfile->objfile_obstack,
+ sizeof (objfile_per_bfd_storage));
+ }
+
+ /* objfile_per_bfd_storage is not trivially constructible, must
+ call the ctor manually. */
+ storage = new (storage) objfile_per_bfd_storage ();
/* 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
static void
objfile_bfd_data_free (struct bfd *unused, void *d)
{
- free_objfile_per_bfd_storage (d);
+ free_objfile_per_bfd_storage ((struct objfile_per_bfd_storage *) d);
}
/* See objfiles.h. */
if (objfile->per_bfd->name_of_main == NULL
|| strcmp (objfile->per_bfd->name_of_main, name) != 0)
objfile->per_bfd->name_of_main
- = obstack_copy0 (&objfile->per_bfd->storage_obstack, name, strlen (name));
+ = (const char *) obstack_copy0 (&objfile->per_bfd->storage_obstack, name,
+ strlen (name));
objfile->per_bfd->language_of_main = lang;
}
add_to_objfile_sections (struct bfd *abfd, struct bfd_section *asect,
void *objfilep)
{
- add_to_objfile_sections_full (abfd, asect, objfilep, 0);
+ add_to_objfile_sections_full (abfd, asect, (struct objfile *) objfilep, 0);
}
/* Builds a section table for OBJFILE.
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 = obstack_copy0 (&objfile->objfile_obstack,
- expanded_name,
- strlen (expanded_name));
- xfree (expanded_name);
+ {
+ name_holder = gdb_abspath (name);
+ expanded_name = name_holder.get ();
+ }
+ original_name
+ = (char *) obstack_copy0 (&objfile_obstack,
+ expanded_name,
+ strlen (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 (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);
}
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 =
- 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;
}
}
if (map_size < alloc_size)
/* Some sections were eliminated. Trim excess space. */
- map = xrealloc (map, map_size * sizeof (*map));
+ map = XRESIZEVEC (struct obj_section *, map, map_size);
else
gdb_assert (alloc_size == map_size);
/* 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;
void
resume_section_map_updates_cleanup (void *arg)
{
- resume_section_map_updates (arg);
+ resume_section_map_updates ((struct program_space *) arg);
}
/* 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