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Apply H.J.'s patch to revert change to elfxx-target.h 

Apply my patch to allow SREC as output format.
This commit is contained in:
Nick Clifton 2001-08-24 16:36:04 +00:00
parent 1ae8b3d2a0
commit 8ea2e4bd70
8 changed files with 140 additions and 34 deletions
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34
bfd/ChangeLog
View File

@ -1,3 +1,37 @@
2001-08-24 Nick Clifton <nickc@cambridge.redhat.com>
* elf-bfd.h (elf_hash_table): Revert definition.
(is_elf_hash_table): New macro.
* elflink.h (elf_link_add_object_symbols): Test
is_elf_hash_table before accessing ELF only fields in hash
structure.
(elf_link_create_dynamic_sections): Fail if not using an ELF
hash structure.
(elf_add_dynamic_entry): Fail if not using an ELF hash
structure.
(elf_link_record_local_dynamic_symbol): Fail if not using an
ELF hash structure.
(size_dynamic_sections): Fail if not using an ELF hash
structure.
(elf_adjust_dynamic_symbol): Fail if not using an ELF
hash structure.
(elf_bfd_final_link): Fail if not using an ELF hash
structure.
2001-08-24 H.J. Lu <hjl@gnu.org>
* elf-bfd.h (elf_hash_table): Return NULL if the linker hash
table is not an ELF linker hash table.
* elf.c (_bfd_elf_link_hash_table_init): Set the linker hash
table type to bfd_link_elf_hash_table.
* elfxx-target.h (bfd_elfNN_bfd_link_hash_table_create): Revert
the last change.
* linker.c (_bfd_link_hash_table_init): Set the linker hash
table type to bfd_link_generic_hash_table.
2001-08-24 Alexandre Oliva <aoliva@redhat.com>
* bfd.c (bfd_alt_mach_code): New function.

4
bfd/elf-bfd.h
View File

@ -273,6 +273,10 @@ struct elf_link_hash_table
/* Get the ELF linker hash table from a link_info structure. */
#define elf_hash_table(p) ((struct elf_link_hash_table *) ((p)->hash))
/* Returns true if the hash table is a struct elf_link_hash_table. */
#define is_elf_hash_table(p) \
((p)->hash->type == bfd_link_elf_hash_table)
/* Constant information held for an ELF backend. */

18
bfd/elf.c
View File

@ -571,8 +571,15 @@ _bfd_elf_merge_sections (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
if (elf_hash_table (info)->merge_info)
_bfd_merge_sections (abfd, elf_hash_table (info)->merge_info);
struct elf_link_hash_table * hash_table;
hash_table = elf_hash_table (info);
if (hash_table == NULL)
return false;
if (hash_table->merge_info)
_bfd_merge_sections (abfd, hash_table->merge_info);
return true;
}
@ -1047,6 +1054,8 @@ _bfd_elf_link_hash_table_init (table, abfd, newfunc)
struct bfd_hash_table *,
const char *));
{
boolean ret;
table->dynamic_sections_created = false;
table->dynobj = NULL;
/* The first dynamic symbol is a dummy. */
@ -1059,7 +1068,10 @@ _bfd_elf_link_hash_table_init (table, abfd, newfunc)
table->stab_info = NULL;
table->merge_info = NULL;
table->dynlocal = NULL;
return _bfd_link_hash_table_init (&table->root, abfd, newfunc);
ret = _bfd_link_hash_table_init (& table->root, abfd, newfunc);
table->root.type = bfd_link_elf_hash_table;
return ret;
}
/* Create an ELF linker hash table. */

84
bfd/elflink.h
View File

@ -916,6 +916,9 @@ elf_link_add_object_symbols (abfd, info)
Elf_External_Sym *esymend;
struct elf_backend_data *bed;
boolean dt_needed;
struct elf_link_hash_table * hash_table;
hash_table = elf_hash_table (info);
bed = get_elf_backend_data (abfd);
add_symbol_hook = bed->elf_add_symbol_hook;
@ -970,7 +973,7 @@ elf_link_add_object_symbols (abfd, info)
{
struct elf_link_hash_entry *h;
h = elf_link_hash_lookup (elf_hash_table (info), name,
h = elf_link_hash_lookup (hash_table, name,
false, false, true);
/* FIXME: What about bfd_link_hash_common? */
@ -1085,13 +1088,16 @@ elf_link_add_object_symbols (abfd, info)
format. FIXME: If there are no input BFD's of the same
format as the output, we can't make a shared library. */
if (info->shared
&& ! elf_hash_table (info)->dynamic_sections_created
&& is_elf_hash_table (info)
&& ! hash_table->dynamic_sections_created
&& abfd->xvec == info->hash->creator)
{
if (! elf_link_create_dynamic_sections (abfd, info))
goto error_return;
}
}
else if (! is_elf_hash_table (info))
goto error_return;
else
{
asection *s;
@ -1194,7 +1200,7 @@ elf_link_add_object_symbols (abfd, info)
n->name = anm;
n->by = abfd;
n->next = NULL;
for (pn = &elf_hash_table (info)->needed;
for (pn = & hash_table->needed;
*pn != NULL;
pn = &(*pn)->next)
;
@ -1209,8 +1215,8 @@ elf_link_add_object_symbols (abfd, info)
to clear runpath. Do _NOT_ bfd_release, as that
frees all more recently bfd_alloc'd blocks as
well. */
if (rpath && elf_hash_table (info)->runpath)
elf_hash_table (info)->runpath = NULL;
if (rpath && hash_table->runpath)
hash_table->runpath = NULL;
n = ((struct bfd_link_needed_list *)
bfd_alloc (abfd, sizeof (struct bfd_link_needed_list)));
@ -1225,7 +1231,7 @@ elf_link_add_object_symbols (abfd, info)
n->name = anm;
n->by = abfd;
n->next = NULL;
for (pn = &elf_hash_table (info)->runpath;
for (pn = & hash_table->runpath;
*pn != NULL;
pn = &(*pn)->next)
;
@ -1252,7 +1258,7 @@ elf_link_add_object_symbols (abfd, info)
n->name = anm;
n->by = abfd;
n->next = NULL;
for (pn = &elf_hash_table (info)->runpath;
for (pn = & hash_table->runpath;
*pn != NULL;
pn = &(*pn)->next)
;
@ -1277,22 +1283,20 @@ elf_link_add_object_symbols (abfd, info)
/* If this is the first dynamic object found in the link, create
the special sections required for dynamic linking. */
if (! elf_hash_table (info)->dynamic_sections_created)
{
if (! elf_link_create_dynamic_sections (abfd, info))
goto error_return;
}
if (! hash_table->dynamic_sections_created)
if (! elf_link_create_dynamic_sections (abfd, info))
goto error_return;
if (add_needed)
{
/* Add a DT_NEEDED entry for this dynamic object. */
oldsize = _bfd_stringtab_size (elf_hash_table (info)->dynstr);
strindex = _bfd_stringtab_add (elf_hash_table (info)->dynstr, name,
oldsize = _bfd_stringtab_size (hash_table->dynstr);
strindex = _bfd_stringtab_add (hash_table->dynstr, name,
true, false);
if (strindex == (bfd_size_type) -1)
goto error_return;
if (oldsize == _bfd_stringtab_size (elf_hash_table (info)->dynstr))
if (oldsize == _bfd_stringtab_size (hash_table->dynstr))
{
asection *sdyn;
Elf_External_Dyn *dyncon, *dynconend;
@ -1302,8 +1306,7 @@ elf_link_add_object_symbols (abfd, info)
have already included this dynamic object in the
link, just ignore it. There is no reason to include
a particular dynamic object more than once. */
sdyn = bfd_get_section_by_name (elf_hash_table (info)->dynobj,
".dynamic");
sdyn = bfd_get_section_by_name (hash_table->dynobj, ".dynamic");
BFD_ASSERT (sdyn != NULL);
dyncon = (Elf_External_Dyn *) sdyn->contents;
@ -1313,8 +1316,7 @@ elf_link_add_object_symbols (abfd, info)
{
Elf_Internal_Dyn dyn;
elf_swap_dyn_in (elf_hash_table (info)->dynobj, dyncon,
&dyn);
elf_swap_dyn_in (hash_table->dynobj, dyncon, & dyn);
if (dyn.d_tag == DT_NEEDED
&& dyn.d_un.d_val == strindex)
{
@ -1969,25 +1971,28 @@ elf_link_add_object_symbols (abfd, info)
bfd_size_type oldsize;
bfd_size_type strindex;
if (! is_elf_hash_table (info))
goto error_return;
/* The symbol from a DT_NEEDED object is referenced from
the regular object to create a dynamic executable. We
have to make sure there is a DT_NEEDED entry for it. */
dt_needed = false;
oldsize = _bfd_stringtab_size (elf_hash_table (info)->dynstr);
strindex = _bfd_stringtab_add (elf_hash_table (info)->dynstr,
oldsize = _bfd_stringtab_size (hash_table->dynstr);
strindex = _bfd_stringtab_add (hash_table->dynstr,
elf_dt_soname (abfd),
true, false);
if (strindex == (bfd_size_type) -1)
goto error_return;
if (oldsize
== _bfd_stringtab_size (elf_hash_table (info)->dynstr))
== _bfd_stringtab_size (hash_table->dynstr))
{
asection *sdyn;
Elf_External_Dyn *dyncon, *dynconend;
sdyn = bfd_get_section_by_name (elf_hash_table (info)->dynobj,
sdyn = bfd_get_section_by_name (hash_table->dynobj,
".dynamic");
BFD_ASSERT (sdyn != NULL);
@ -1998,7 +2003,7 @@ elf_link_add_object_symbols (abfd, info)
{
Elf_Internal_Dyn dyn;
elf_swap_dyn_in (elf_hash_table (info)->dynobj,
elf_swap_dyn_in (hash_table->dynobj,
dyncon, &dyn);
BFD_ASSERT (dyn.d_tag != DT_NEEDED ||
dyn.d_un.d_val != strindex);
@ -2155,6 +2160,7 @@ elf_link_add_object_symbols (abfd, info)
&& ! info->relocateable
&& ! info->traditional_format
&& info->hash->creator->flavour == bfd_target_elf_flavour
&& is_elf_hash_table (info)
&& (info->strip != strip_all && info->strip != strip_debugger))
{
asection *stab, *stabstr;
@ -2170,7 +2176,7 @@ elf_link_add_object_symbols (abfd, info)
secdata = elf_section_data (stab);
if (! _bfd_link_section_stabs (abfd,
&elf_hash_table (info)->stab_info,
& hash_table->stab_info,
stab, stabstr,
&secdata->stab_info))
goto error_return;
@ -2178,15 +2184,15 @@ elf_link_add_object_symbols (abfd, info)
}
}
if (! info->relocateable && ! dynamic)
if (! info->relocateable && ! dynamic
&& is_elf_hash_table (info))
{
asection *s;
for (s = abfd->sections; s != NULL; s = s->next)
if ((s->flags & SEC_MERGE)
&& ! _bfd_merge_section (abfd,
&elf_hash_table (info)->merge_info,
s, &elf_section_data (s)->merge_info))
&& ! _bfd_merge_section (abfd, & hash_table->merge_info, s,
& elf_section_data (s)->merge_info))
goto error_return;
}
@ -2219,6 +2225,9 @@ elf_link_create_dynamic_sections (abfd, info)
struct elf_link_hash_entry *h;
struct elf_backend_data *bed;
if (! is_elf_hash_table (info))
return false;
if (elf_hash_table (info)->dynamic_sections_created)
return true;
@ -2343,6 +2352,9 @@ elf_add_dynamic_entry (info, tag, val)
size_t newsize;
bfd_byte *newcontents;
if (! is_elf_hash_table (info))
return false;
dynobj = elf_hash_table (info)->dynobj;
s = bfd_get_section_by_name (dynobj, ".dynamic");
@ -2379,6 +2391,9 @@ elf_link_record_local_dynamic_symbol (info, input_bfd, input_indx)
unsigned long dynstr_index;
char *name;
if (! is_elf_hash_table (info))
return false;
/* See if the entry exists already. */
for (entry = elf_hash_table (info)->dynlocal; entry ; entry = entry->next)
if (entry->input_bfd == input_bfd && entry->input_indx == input_indx)
@ -2895,6 +2910,9 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath,
if (info->hash->creator->flavour != bfd_target_elf_flavour)
return true;
if (! is_elf_hash_table (info))
return false;
/* The backend may have to create some sections regardless of whether
we're dynamic or not. */
bed = get_elf_backend_data (output_bfd);
@ -3542,12 +3560,14 @@ elf_fix_symbol_flags (h, eif)
backend specifically; we can't just clear PLT-related data here. */
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0
&& eif->info->shared
&& is_elf_hash_table (eif->info)
&& (eif->info->symbolic
|| ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
|| ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0)
{
struct elf_backend_data *bed;
bed = get_elf_backend_data (elf_hash_table (eif->info)->dynobj);
if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
|| ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
@ -3602,6 +3622,9 @@ elf_adjust_dynamic_symbol (h, data)
if (h->root.type == bfd_link_hash_indirect)
return true;
if (! is_elf_hash_table (eif->info))
return false;
/* Fix the symbol flags. */
if (! elf_fix_symbol_flags (h, eif))
return false;
@ -4512,6 +4535,9 @@ elf_bfd_final_link (abfd, info)
size_t relativecount = 0;
asection *reldyn = 0;
if (! is_elf_hash_table (info))
return false;
if (info->shared)
abfd->flags |= DYNAMIC;

13
bfd/elfxx-target.h
View File

@ -162,11 +162,20 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
_bfd_elf_canonicalize_dynamic_reloc
#endif
#ifdef elf_backend_relocate_section
#ifndef bfd_elfNN_bfd_link_hash_table_create
#define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
#endif
#ifndef elf_backend_relocate_section
/* If no backend relocate_section routine, use the generic linker. */
#else /* ! defined (elf_backend_relocate_section) */
/* If no backend relocate_section routine, use the generic linker.
Note - this will prevent the port from being able to use some of
the other features of the ELF linker, because the generic hash structure
does not have the fields needed by the ELF linker. In particular it
means that linking directly to S-records will not work. */
#ifndef bfd_elfNN_bfd_link_hash_table_create
#define bfd_elfNN_bfd_link_hash_table_create \
_bfd_generic_link_hash_table_create
#endif
#ifndef bfd_elfNN_bfd_link_add_symbols
#define bfd_elfNN_bfd_link_add_symbols _bfd_generic_link_add_symbols
#endif

2
bfd/linker.c
View File

@ -483,6 +483,8 @@ _bfd_link_hash_table_init (table, abfd, newfunc)
table->creator = abfd->xvec;
table->undefs = NULL;
table->undefs_tail = NULL;
table->type = bfd_link_generic_hash_table;
return bfd_hash_table_init (&table->table, newfunc);
}

8
include/ChangeLog
View File

@ -1,3 +1,11 @@
2001-08-24 H.J. Lu <hjl@gnu.org>
* bfdlink.h (bfd_link_hash_table_type): New. The linker hash
table type, bfd_link_generic_hash_table and
bfd_link_elf_hash_table.
(bfd_link_hash_table): Add a new field, type, for the linker
hash table type.
2001-08-23 Jakub Jelinek <jakub@redhat.com>
* bfdlink.h (struct bfd_link_info): Add combreloc and

11
include/bfdlink.h
View File

@ -41,6 +41,15 @@ enum bfd_link_discard
discard_l, /* Discard local temporary symbols. */
discard_all /* Discard all locals. */
};
/* Describes the type of hash table entry structure being used.
Different hash table structure have different fields and so
support different linking features. */
enum bfd_link_hash_table_type
{
bfd_link_generic_hash_table,
bfd_link_elf_hash_table
};
/* These are the possible types of an entry in the BFD link hash
table. */
@ -146,6 +155,8 @@ struct bfd_link_hash_table
struct bfd_link_hash_entry *undefs;
/* Entries are added to the tail of the undefs list. */
struct bfd_link_hash_entry *undefs_tail;
/* The type of the ink hash table. */
enum bfd_link_hash_table_type type;
};
/* Look up an entry in a link hash table. If FOLLOW is true, this