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authorSteve Chamberlain <sac@cygnus>1993-03-30 17:49:00 +0000
committerSteve Chamberlain <sac@cygnus>1993-03-30 17:49:00 +0000
commit29f33467f23eaff819c4321f8cf9eb7fc1ac3b74 (patch)
tree29bb8ccddd3a2de4fa1802ee34e51a46084fb5c8 /ld/relax.c
parent21c7770362ef8eee989c93e7612673cfac3c8e84 (diff)
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Tue Mar 30 09:40:25 1993 Steve Chamberlain (sac@thepub.cygnus.com)
* ldindr.c (add_indirect): Keep more information in the alias symbol chain. * ldlang.c (wild_doit): Don't inherit NEVER_LOAD section attribute from an input section. * ldmain.c (Q_enter_file_symbols): Common section is NEVER_LOAD by default. (Q_enter_file_symbos): Indirect symbols now are known by their section, not a special symbol flag. * ldsym.c (write_file_locals): Indirect symbols aren't local. (write_file_globals): Write the mapping for an indirect symbol. * relax.c (build_it): When forced to write a NEVER_LOAD section, fill it with zeros.
Diffstat (limited to 'ld/relax.c')
-rw-r--r--ld/relax.c278
1 files changed, 145 insertions, 133 deletions
diff --git a/ld/relax.c b/ld/relax.c
index 2db3180..ca73188 100644
--- a/ld/relax.c
+++ b/ld/relax.c
@@ -16,12 +16,12 @@ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-/*
-
+/*
+
new age linking
-Tie together all the interseting blocks
+Tie together all the interseting blocks
*/
@@ -39,150 +39,163 @@ Tie together all the interseting blocks
#include "ldgram.h"
#include "relax.h"
static void
-DEFUN(build_it,(statement),
- lang_statement_union_type *statement)
+DEFUN (build_it, (statement),
+ lang_statement_union_type * statement)
{
- switch (statement->header.type) {
+ switch (statement->header.type)
+ {
#if 0
- {
-
- bfd_byte play_area[SHORT_SIZE];
- unsigned int i;
- bfd_putshort(output_bfd, statement->fill_statement.fill, play_area);
- /* Write out all entire shorts */
- for (i = 0;
- i < statement->fill_statement.size - SHORT_SIZE + 1;
- i+= SHORT_SIZE)
- {
- bfd_set_section_contents(output_bfd,
- statement->fill_statement.output_section,
- play_area,
- statement->data_statement.output_offset +i,
- SHORT_SIZE);
-
- }
-
- /* Now write any remaining byte */
- if (i < statement->fill_statement.size)
- {
- bfd_set_section_contents(output_bfd,
- statement->fill_statement.output_section,
- play_area,
- statement->data_statement.output_offset +i,
- 1);
-
- }
-
- abort();
- }
- break;
+ {
+
+ bfd_byte play_area[SHORT_SIZE];
+ unsigned int i;
+ bfd_putshort (output_bfd, statement->fill_statement.fill, play_area);
+ /* Write out all entire shorts */
+ for (i = 0;
+ i < statement->fill_statement.size - SHORT_SIZE + 1;
+ i += SHORT_SIZE)
+ {
+ bfd_set_section_contents (output_bfd,
+ statement->fill_statement.output_section,
+ play_area,
+ statement->data_statement.output_offset + i,
+ SHORT_SIZE);
+
+ }
+
+ /* Now write any remaining byte */
+ if (i < statement->fill_statement.size)
+ {
+ bfd_set_section_contents (output_bfd,
+ statement->fill_statement.output_section,
+ play_area,
+ statement->data_statement.output_offset + i,
+ 1);
+
+ }
+
+ abort ();
+ }
+ break;
#endif
- case lang_data_statement_enum:
-
- {
-
- bfd_vma value = statement->data_statement.value;
- bfd_byte play_area[LONG_SIZE];
- unsigned int size = 0;
- asection * output_section = statement->data_statement.output_section;
- switch (statement->data_statement.type) {
- case LONG:
- bfd_put_32(output_section->owner, value, play_area);
- size = LONG_SIZE;
- break;
- case SHORT:
- bfd_put_16(output_section->owner, value, play_area);
- size = SHORT_SIZE;
- break;
- case BYTE:
- bfd_put_8(output_section->owner, value, play_area);
- size = BYTE_SIZE;
- break;
- }
-
- bfd_set_section_contents(output_section->owner,
- statement->data_statement.output_section,
- play_area,
- statement->data_statement.output_vma,
- size);
-
-
-
- }
-
- break;
- case lang_input_section_enum:
- {
- /* Create a new seclet in the output section with this
+ case lang_data_statement_enum:
+
+ {
+
+ bfd_vma value = statement->data_statement.value;
+ bfd_byte play_area[LONG_SIZE];
+ unsigned int size = 0;
+ asection *output_section = statement->data_statement.output_section;
+ switch (statement->data_statement.type)
+ {
+ case LONG:
+ bfd_put_32 (output_section->owner, value, play_area);
+ size = LONG_SIZE;
+ break;
+ case SHORT:
+ bfd_put_16 (output_section->owner, value, play_area);
+ size = SHORT_SIZE;
+ break;
+ case BYTE:
+ bfd_put_8 (output_section->owner, value, play_area);
+ size = BYTE_SIZE;
+ break;
+ }
+
+ bfd_set_section_contents (output_section->owner,
+ statement->data_statement.output_section,
+ play_area,
+ statement->data_statement.output_vma,
+ size);
+
+
+
+ }
+
+ break;
+ case lang_input_section_enum:
+ {
+ /* Create a new seclet in the output section with this
attached */
- if (statement->input_section.ifile->just_syms_flag == false)
- {
- asection *i = statement->input_section.section;
-
- asection *output_section = i->output_section;
-
- bfd_seclet_type *seclet = bfd_new_seclet(output_section->owner,output_section);
-
- seclet->type = bfd_indirect_seclet;
- seclet->u.indirect.section = i;
- seclet->u.indirect.symbols = statement->input_section.ifile->asymbols;
- seclet->size = i->_cooked_size;
- seclet->offset = i->output_offset;
- seclet->next = 0;
- }
-
- }
- break;
- case lang_padding_statement_enum:
- /* Make a new seclet with the right filler */
- {
- /* Create a new seclet in the output section with this
+ if (statement->input_section.ifile->just_syms_flag == false)
+ {
+ asection *i = statement->input_section.section;
+
+ asection *output_section = i->output_section;
+
+ bfd_seclet_type *seclet = bfd_new_seclet (output_section->owner, output_section);
+
+ if (i->flags & SEC_NEVER_LOAD)
+ {
+ /* We've got a never load section inside one which is going
+ to be output, we'll change it into a fill seclet */
+ seclet->type = bfd_fill_seclet;
+ seclet->u.fill.value = 0;
+ }
+ else
+ {
+ seclet->type = bfd_indirect_seclet;
+ seclet->u.indirect.section = i;
+ seclet->u.indirect.symbols
+ = statement->input_section.ifile->asymbols;
+ }
+ seclet->size = i->_cooked_size;
+ seclet->offset = i->output_offset;
+ seclet->next = 0;
+ }
+
+ }
+ break;
+ case lang_padding_statement_enum:
+ /* Make a new seclet with the right filler */
+ {
+ /* Create a new seclet in the output section with this
attached */
- bfd_seclet_type *seclet =
- bfd_new_seclet(statement->padding_statement.output_section->owner,
- statement->padding_statement.output_section);
-
- seclet->type = bfd_fill_seclet;
- seclet->size = statement->padding_statement.size;
- seclet->offset = statement->padding_statement.output_offset;
- seclet->u.fill.value = statement->padding_statement.fill;
- seclet->next = 0;
- }
- break;
+ bfd_seclet_type *seclet =
+ bfd_new_seclet (statement->padding_statement.output_section->owner,
+ statement->padding_statement.output_section);
+
+ seclet->type = bfd_fill_seclet;
+ seclet->size = statement->padding_statement.size;
+ seclet->offset = statement->padding_statement.output_offset;
+ seclet->u.fill.value = statement->padding_statement.fill;
+ seclet->next = 0;
+ }
+ break;
- break;
- default:
- /* All the other ones fall through */
- ;
+ break;
+ default:
+ /* All the other ones fall through */
+ ;
- }
+ }
}
-void
-DEFUN(write_relax,(output_bfd, data, relocateable),
- bfd *output_bfd AND
- PTR data AND
- boolean relocateable)
+void
+DEFUN (write_relax, (output_bfd, data, relocateable),
+ bfd * output_bfd AND
+ PTR data AND
+ boolean relocateable)
{
-/* Tie up all the statements to generate an output bfd structure which
+ /* Tie up all the statements to generate an output bfd structure which
bfd can mull over */
- lang_for_each_statement(build_it);
+ lang_for_each_statement (build_it);
- bfd_seclet_link(output_bfd, data, relocateable);
+ bfd_seclet_link (output_bfd, data, relocateable);
}
-
+
/* See if we can change the size of this section by shrinking the
@@ -190,19 +203,18 @@ DEFUN(write_relax,(output_bfd, data, relocateable),
symbols in it, and shift around the data too.
*/
boolean
-DEFUN(relax_section,(this_ptr),
- lang_statement_union_type **this_ptr)
+DEFUN (relax_section, (this_ptr),
+ lang_statement_union_type ** this_ptr)
{
extern lang_input_statement_type *script_file;
lang_input_section_type *is = &((*this_ptr)->input_section);
asection *i = is->section;
- if (!(i->owner->flags & BFD_IS_RELAXABLE))
- {
- if (i->owner != script_file->the_bfd)
- einfo("%B: not assembled with -linkrelax\n", i->owner);
- }
-
- return bfd_relax_section(i->owner, i, is->ifile->asymbols);
-
-}
+ if (!(i->owner->flags & BFD_IS_RELAXABLE))
+ {
+ if (i->owner != script_file->the_bfd)
+ einfo ("%B: not assembled with -linkrelax\n", i->owner);
+ }
+
+ return bfd_relax_section (i->owner, i, is->ifile->asymbols);
+}