# This shell script emits a C file. -*- C -*-
-# Copyright 1991, 1993, 1994, 1997, 1999, 2000, 2001
-# Free Software Foundation, Inc.
+# Copyright 1991, 1993, 1994, 1997, 1999, 2000, 2001, 2002, 2003, 2004,
+# 2005 Free Software Foundation, Inc.
#
# This file is part of GLD, the Gnu Linker.
#
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
#
# This file is sourced from elf32.em, and defines extra hppa-elf
#include "ldctor.h"
#include "elf32-hppa.h"
-static void hppaelf_after_parse PARAMS((void));
-static void hppaelf_create_output_section_statements PARAMS ((void));
-static void hppaelf_delete_padding_statements
- PARAMS ((lang_statement_list_type *));
-static asection *hppaelf_add_stub_section
- PARAMS ((const char *, asection *));
-static void hppaelf_layaout_sections_again PARAMS ((void));
-static void hppaelf_finish PARAMS ((void));
-
/* Fake input file for stubs. */
static lang_input_statement_type *stub_file;
stubs. */
static int multi_subspace = 0;
+/* Whether we need to call hppa_layout_sections_again. */
+static int need_laying_out = 0;
+
/* Maximum size of a group of input sections that can be handled by
one stub section. A value of +/-1 indicates the bfd back-end
should use a suitable default size. */
and adds millicode library to the list of input files. */
static void
-hppaelf_after_parse ()
+hppaelf_after_parse (void)
{
- if (link_info.relocateable)
+ if (link_info.relocatable)
lang_add_unique (".text");
-#if 0 /* enable this once we split millicode stuff from libgcc */
- else
- lang_add_input_file ("milli",
- lang_input_file_is_l_enum,
- NULL);
-#endif
+
+ /* Enable this once we split millicode stuff from libgcc:
+ lang_add_input_file ("milli",
+ lang_input_file_is_l_enum,
+ NULL);
+ */
}
/* This is called before the input files are opened. We create a new
fake input file to hold the stub sections. */
static void
-hppaelf_create_output_section_statements ()
+hppaelf_create_output_section_statements (void)
{
+ extern const bfd_target bfd_elf32_hppa_linux_vec;
+ extern const bfd_target bfd_elf32_hppa_nbsd_vec;
+ extern const bfd_target bfd_elf32_hppa_vec;
+
+ if (link_info.hash->creator != &bfd_elf32_hppa_linux_vec
+ && link_info.hash->creator != &bfd_elf32_hppa_nbsd_vec
+ && link_info.hash->creator != &bfd_elf32_hppa_vec)
+ return;
+
stub_file = lang_add_input_file ("linker stubs",
lang_input_file_is_fake_enum,
NULL);
return;
}
+ stub_file->the_bfd->flags |= BFD_LINKER_CREATED;
ldlang_add_file (stub_file);
}
-/* Walk all the lang statements splicing out any padding statements from
- the list. */
-
-static void
-hppaelf_delete_padding_statements (list)
- lang_statement_list_type *list;
-{
- lang_statement_union_type *s;
- lang_statement_union_type **ps;
- for (ps = &list->head; (s = *ps) != NULL; ps = &s->next)
- {
- switch (s->header.type)
- {
-
- /* We want to recursively walk these sections. */
- case lang_constructors_statement_enum:
- hppaelf_delete_padding_statements (&constructor_list);
- break;
-
- case lang_output_section_statement_enum:
- hppaelf_delete_padding_statements (&s->output_section_statement.children);
- break;
-
- case lang_group_statement_enum:
- hppaelf_delete_padding_statements (&s->group_statement.children);
- break;
-
- case lang_wild_statement_enum:
- hppaelf_delete_padding_statements (&s->wild_statement.children);
- break;
-
- /* Here's what we are really looking for. Splice these out of
- the list. */
- case lang_padding_statement_enum:
- *ps = s->next;
- if (*ps == NULL)
- list->tail = ps;
- break;
-
- /* We don't care about these cases. */
- case lang_data_statement_enum:
- case lang_object_symbols_statement_enum:
- case lang_output_statement_enum:
- case lang_target_statement_enum:
- case lang_input_section_enum:
- case lang_input_statement_enum:
- case lang_assignment_statement_enum:
- case lang_address_statement_enum:
- break;
-
- default:
- abort ();
- break;
- }
- }
-}
-
struct hook_stub_info
{
/* Traverse the linker tree to find the spot where the stub goes. */
-static boolean hook_in_stub
- PARAMS ((struct hook_stub_info *, lang_statement_union_type **));
-
-static boolean
-hook_in_stub (info, lp)
- struct hook_stub_info *info;
- lang_statement_union_type **lp;
+static bfd_boolean
+hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp)
{
lang_statement_union_type *l;
- boolean ret;
+ bfd_boolean ret;
- for (; (l = *lp) != NULL; lp = &l->next)
+ for (; (l = *lp) != NULL; lp = &l->header.next)
{
switch (l->header.type)
{
before its associated input section. */
*lp = info->add.head;
*(info->add.tail) = l;
- return true;
+ return TRUE;
}
break;
break;
}
}
- return false;
+ return FALSE;
}
immediately before INPUT_SECTION. */
static asection *
-hppaelf_add_stub_section (stub_sec_name, input_section)
- const char *stub_sec_name;
- asection *input_section;
+hppaelf_add_stub_section (const char *stub_sec_name, asection *input_section)
{
asection *stub_sec;
flagword flags;
/* Another call-back for elf32_hppa_size_stubs. */
static void
-hppaelf_layaout_sections_again ()
+hppaelf_layout_sections_again (void)
{
/* If we have changed sizes of the stub sections, then we need
to recalculate all the section offsets. This may mean we need to
add even more stubs. */
+ need_laying_out = 0;
- /* Delete all the padding statements, they're no longer valid. */
- hppaelf_delete_padding_statements (stat_ptr);
-
- /* Resize the sections. */
- lang_size_sections (stat_ptr->head, abs_output_section,
- &stat_ptr->head, 0, (bfd_vma) 0, false);
+ gld${EMULATION_NAME}_layout_sections_again ();
+}
- /* Redo special stuff. */
- ldemul_after_allocation ();
- /* Do the assignments again. */
- lang_do_assignments (stat_ptr->head, abs_output_section,
- (fill_type) 0, (bfd_vma) 0);
+static void
+build_section_lists (lang_statement_union_type *statement)
+{
+ if (statement->header.type == lang_input_section_enum
+ && !statement->input_section.ifile->just_syms_flag
+ && (statement->input_section.section->flags & SEC_EXCLUDE) == 0
+ && statement->input_section.section->output_section != NULL
+ && statement->input_section.section->output_section->owner == output_bfd)
+ {
+ elf32_hppa_next_input_section (&link_info,
+ statement->input_section.section);
+ }
}
to build linker stubs. */
static void
-hppaelf_finish ()
+hppaelf_finish (void)
{
+ /* bfd_elf_discard_info just plays with debugging sections,
+ ie. doesn't affect any code, so we can delay resizing the
+ sections. It's likely we'll resize everything in the process of
+ adding stubs. */
+ if (bfd_elf_discard_info (output_bfd, &link_info))
+ need_laying_out = 1;
+
/* If generating a relocatable output file, then we don't
have to examine the relocs. */
- if (link_info.relocateable)
- return;
-
- /* Call into the BFD backend to do the real work. */
- if (! elf32_hppa_size_stubs (output_bfd,
- stub_file->the_bfd,
- &link_info,
- multi_subspace,
- group_size,
- &hppaelf_add_stub_section,
- &hppaelf_layaout_sections_again))
+ if (stub_file != NULL && !link_info.relocatable)
{
- einfo ("%X%P: can not size stub section: %E\n");
- return;
- }
+ int ret = elf32_hppa_setup_section_lists (output_bfd, &link_info);
- /* Set the global data pointer. */
- if (! elf32_hppa_set_gp (output_bfd, &link_info))
- {
- einfo ("%X%P: can not set gp\n");
- return;
+ if (ret != 0)
+ {
+ if (ret < 0)
+ {
+ einfo ("%X%P: can not size stub section: %E\n");
+ return;
+ }
+
+ lang_for_each_statement (build_section_lists);
+
+ /* Call into the BFD backend to do the real work. */
+ if (! elf32_hppa_size_stubs (output_bfd,
+ stub_file->the_bfd,
+ &link_info,
+ multi_subspace,
+ group_size,
+ &hppaelf_add_stub_section,
+ &hppaelf_layout_sections_again))
+ {
+ einfo ("%X%P: can not size stub section: %E\n");
+ return;
+ }
+ }
}
- /* Now build the linker stubs. */
- if (stub_file->the_bfd->sections != NULL)
+ if (need_laying_out)
+ hppaelf_layout_sections_again ();
+
+ if (! link_info.relocatable)
{
- if (! elf32_hppa_build_stubs (&link_info))
- einfo ("%X%P: can not build stubs: %E\n");
+ /* Set the global data pointer. */
+ if (! elf32_hppa_set_gp (output_bfd, &link_info))
+ {
+ einfo ("%X%P: can not set gp\n");
+ return;
+ }
+
+ /* Now build the linker stubs. */
+ if (stub_file != NULL && stub_file->the_bfd->sections != NULL)
+ {
+ if (! elf32_hppa_build_stubs (&link_info))
+ einfo ("%X%P: can not build stubs: %E\n");
+ }
}
+
+ finish_default ();
}
/* Avoid processing the fake stub_file in vercheck, stat_needed and
check_needed routines. */
-static void hppa_for_each_input_file_wrapper
- PARAMS ((lang_input_statement_type *));
-static void hppa_lang_for_each_input_file
- PARAMS ((void (*) (lang_input_statement_type *)));
-
-static void (*real_func) PARAMS ((lang_input_statement_type *));
+static void (*real_func) (lang_input_statement_type *);
-static void hppa_for_each_input_file_wrapper (l)
- lang_input_statement_type *l;
+static void hppa_for_each_input_file_wrapper (lang_input_statement_type *l)
{
if (l != stub_file)
(*real_func) (l);
}
static void
-hppa_lang_for_each_input_file (func)
- void (*func) PARAMS ((lang_input_statement_type *));
+hppa_lang_for_each_input_file (void (*func) (lang_input_statement_type *))
{
real_func = func;
lang_for_each_input_file (&hppa_for_each_input_file_wrapper);
#define OPTION_STUBGROUP_SIZE (OPTION_MULTI_SUBSPACE + 1)
'
-# The options are repeated below so that no abbreviations are allowed.
-# Otherwise -s matches stub-group-size
PARSE_AND_LIST_LONGOPTS='
{ "multi-subspace", no_argument, NULL, OPTION_MULTI_SUBSPACE },
- { "multi-subspace", no_argument, NULL, OPTION_MULTI_SUBSPACE },
- { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
{ "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
'
PARSE_AND_LIST_OPTIONS='
fprintf (file, _("\
- --multi-subspace Generate import and export stubs to support\n\
- multiple sub-space shared libraries\n"
+ --multi-subspace Generate import and export stubs to support\n\
+ multiple sub-space shared libraries\n"
));
fprintf (file, _("\
- --stub-group-size=N Maximum size of a group of input sections that can be\n\
- handled by one stub section. A negative value\n\
- locates all stubs before their branches (with a\n\
- group size of -N), while a positive value allows\n\
- two groups of input sections, one before, and one\n\
- after each stub section. Values of +/-1 indicate\n\
- the linker should choose suitable defaults."
+ --stub-group-size=N Maximum size of a group of input sections that can be\n\
+ handled by one stub section. A negative value\n\
+ locates all stubs before their branches (with a\n\
+ group size of -N), while a positive value allows\n\
+ two groups of input sections, one before, and one\n\
+ after each stub section. Values of +/-1 indicate\n\
+ the linker should choose suitable defaults.\n"
));
'
projects / deliverable / binutils-gdb.git / blobdiff