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* ldlang.h (lang_output_section_statement_type): Add prev.

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* ldlang.c (output_statement_newfunc): Set os.prev.
	(lang_insert_orphan): Likewise.
	(output_prev_sec_find): Use os.prev.
This commit is contained in:
Alan Modra 2005-12-24 07:48:30 +00:00
parent 3555e8e589
commit 218868ba41
3 changed files with 23 additions and 7 deletions
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7
ld/ChangeLog
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@ -1,3 +1,10 @@
2005-12-24 Alan Modra <amodra@bigpond.net.au>
* ldlang.h (lang_output_section_statement_type): Add prev.
* ldlang.c (output_statement_newfunc): Set os.prev.
(lang_insert_orphan): Likewise.
(output_prev_sec_find): Use os.prev.
2005-12-22 Santosh Raktawan <santoshr2@kpitcummins.com> 2005-12-22 Santosh Raktawan <santoshr2@kpitcummins.com>
* ld/emulparms/h8300helf.sh (TINY_READONLY_SECTION, * ld/emulparms/h8300helf.sh (TINY_READONLY_SECTION,

22
ld/ldlang.c
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@ -912,6 +912,14 @@ output_statement_newfunc (struct bfd_hash_entry *entry,
(lang_statement_union_type *) &ret->os, (lang_statement_union_type *) &ret->os,
&ret->os.header.next); &ret->os.header.next);
/* For every output section statement added to the list, except the
first one, lang_output_section_statement.tail points to the "next"
field of the last element of the list. */
if (lang_output_section_statement.head != NULL)
ret->os.prev = (lang_output_section_statement_type *)
((char *) lang_output_section_statement.tail
- offsetof (lang_output_section_statement_type, next));
/* GCC's strict aliasing rules prevent us from just casting the /* GCC's strict aliasing rules prevent us from just casting the
address, so we store the pointer in a variable and cast that address, so we store the pointer in a variable and cast that
instead. */ instead. */
@ -1290,20 +1298,15 @@ lang_output_section_find_by_flags (const asection *sec,
static asection * static asection *
output_prev_sec_find (lang_output_section_statement_type *os) output_prev_sec_find (lang_output_section_statement_type *os)
{ {
asection *s = (asection *) NULL;
lang_output_section_statement_type *lookup; lang_output_section_statement_type *lookup;
for (lookup = &lang_output_section_statement.head->output_section_statement; for (lookup = os->prev; lookup != NULL; lookup = lookup->prev)
lookup != NULL;
lookup = lookup->next)
{ {
if (lookup->constraint == -1) if (lookup->constraint == -1)
continue; continue;
if (lookup == os)
return s;
if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL) if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL)
s = lookup->bfd_section; return lookup->bfd_section;
} }
return NULL; return NULL;
@ -1544,7 +1547,12 @@ lang_insert_orphan (asection *s,
/* Do the same for the list of output section statements. */ /* Do the same for the list of output section statements. */
newly_added_os = *os_tail; newly_added_os = *os_tail;
*os_tail = NULL; *os_tail = NULL;
newly_added_os->prev = (lang_output_section_statement_type *)
((char *) place->os_tail
- offsetof (lang_output_section_statement_type, next));
newly_added_os->next = *place->os_tail; newly_added_os->next = *place->os_tail;
if (newly_added_os->next != NULL)
newly_added_os->next->prev = newly_added_os;
*place->os_tail = newly_added_os; *place->os_tail = newly_added_os;
place->os_tail = &newly_added_os->next; place->os_tail = &newly_added_os->next;

1
ld/ldlang.h
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@ -130,6 +130,7 @@ typedef struct lang_output_section_statement_struct
lang_statement_header_type header; lang_statement_header_type header;
lang_statement_list_type children; lang_statement_list_type children;
struct lang_output_section_statement_struct *next; struct lang_output_section_statement_struct *next;
struct lang_output_section_statement_struct *prev;
const char *name; const char *name;
asection *bfd_section; asection *bfd_section;
lang_memory_region_type *region; lang_memory_region_type *region;