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move gdbarch object from objfile to per-BFD

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This moves the "gdbarch" field from the objfile into the BFD.

This field's value is derived from the BFD and is immutable over the
lifetime of the BFD.  This makes it a reasonable candidate for pushing
into the per-BFD object.

This is part of the long-term objfile splitting project.  In the long
run I think this patch will make it simpler to moves types from the
objfile to the per-BFD object; but the patch makes sense as a minor
cleanup by itself.

Built and regtested on x86-64 Fedora 18.

	* cp-namespace.c (cp_lookup_symbol_imports_or_template): Use
	get_objfile_arch.
	* elfread.c (elf_rel_plt_read, elf_gnu_ifunc_record_cache)
	(elf_gnu_ifunc_resolve_by_got): Use get_objfile_arch.
	* jit.c (jit_object_close_impl): Update.
	* jv-lang.c (get_dynamics_objfile): Update.
	* linespec.c (add_minsym): Use get_dynamics_objfile.
	* objfiles.c (get_objfile_bfd_data): Initialize 'gdbarch' field.
	(allocate_objfile): Don't initialize 'gdbarch' field.
	(get_objfile_arch): Update.
	* objfiles.h (struct objfile_per_bfd_storage) <gdbarch>: New field,
	moved from...
	(struct objfile) <gdbarch>: ... here.  Remove.
	* stap-probe.c (stap_can_evaluate_probe_arguments): Use
	get_objfile_arch.
	* symfile.c (init_entry_point_info): Use get_objfile_arch.
This commit is contained in:
Tom Tromey
2013-08-20 15:04:51 +00:00
parent f5aee5eeb8
commit df6d544176
10 changed files with 41 additions and 21 deletions
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8
gdb/objfiles.c
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@ -143,6 +143,9 @@ get_objfile_bfd_data (struct objfile *objfile, struct bfd *abfd)
{
storage = bfd_zalloc (abfd, sizeof (struct objfile_per_bfd_storage));
set_bfd_data (abfd, objfiles_bfd_data, storage);
/* Look up the gdbarch associated with the BFD. */
storage->gdbarch = gdbarch_from_bfd (abfd);
}
else
storage = OBSTACK_ZALLOC (&objfile->objfile_obstack,
@ -282,9 +285,6 @@ allocate_objfile (bfd *abfd, int flags)
gdb_bfd_ref (abfd);
if (abfd != NULL)
{
/* Look up the gdbarch associated with the BFD. */
objfile->gdbarch = gdbarch_from_bfd (abfd);
objfile->name = bfd_get_filename (abfd);
objfile->mtime = bfd_get_mtime (abfd);
@ -335,7 +335,7 @@ allocate_objfile (bfd *abfd, int flags)
struct gdbarch *
get_objfile_arch (struct objfile *objfile)
{
return objfile->gdbarch;
return objfile->per_bfd->gdbarch;
}
/* If there is a valid and known entry point, function fills *ENTRY_P with it