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* ldlang.c (lang_output_section_find_by_flags): Handle non-alloc

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sections.
	* emultempl/elf32.em (enum orphan_save_index): Add orphan_nonalloc.
	(hold): Likewise.
	(gld${EMULATION_NAME}_place_orphan): Handle non-alloc orphans.
This commit is contained in:
Alan Modra 2008-10-21 22:55:04 +00:00
parent 570685ada8
commit 07890c0736
3 changed files with 53 additions and 9 deletions
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8
ld/ChangeLog
View file

@ -1,3 +1,11 @@
2008-10-22 Alan Modra <amodra@bigpond.net.au>
* ldlang.c (lang_output_section_find_by_flags): Handle non-alloc
sections.
* emultempl/elf32.em (enum orphan_save_index): Add orphan_nonalloc.
(hold): Likewise.
(gld${EMULATION_NAME}_place_orphan): Handle non-alloc orphans.
2008-10-22 Bernhard Reutner-Fischer <aldot@gcc.gnu.org>
* emultempl/armelf.em (PARSE_AND_LIST_OPTIONS): Correct typo in

24
ld/emultempl/elf32.em
View file

@ -1662,7 +1662,10 @@ gld${EMULATION_NAME}_place_orphan (asection *s,
0, 0, 0, 0 },
{ ".sdata",
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA,
0, 0, 0, 0 }
0, 0, 0, 0 },
{ 0,
SEC_HAS_CONTENTS,
0, 0, 0, 0 },
};
enum orphan_save_index
{
@ -1672,7 +1675,8 @@ gld${EMULATION_NAME}_place_orphan (asection *s,
orphan_bss,
orphan_rel,
orphan_interp,
orphan_sdata
orphan_sdata,
orphan_nonalloc
};
static int orphan_init_done = 0;
struct orphan_save *place;
@ -1728,7 +1732,9 @@ gld${EMULATION_NAME}_place_orphan (asection *s,
if (!orphan_init_done)
{
lang_output_section_statement_type *lookup;
struct orphan_save *ho;
for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
if (ho->name != NULL)
{
@ -1736,6 +1742,16 @@ gld${EMULATION_NAME}_place_orphan (asection *s,
if (ho->os != NULL && ho->os->flags == 0)
ho->os->flags = ho->flags;
}
lookup = hold[orphan_bss].os;
if (lookup == NULL)
lookup = &lang_output_section_statement.head->output_section_statement;
for (; lookup != NULL; lookup = lookup->next)
if ((lookup->bfd_section != NULL
&& (lookup->bfd_section->flags & SEC_DEBUGGING) != 0)
|| strcmp (lookup->name, ".comment") == 0)
break;
hold[orphan_nonalloc].os = lookup ? lookup->prev : NULL;
hold[orphan_nonalloc].name = ".comment";
orphan_init_done = 1;
}
@ -1758,7 +1774,9 @@ gld${EMULATION_NAME}_place_orphan (asection *s,
in the first page. */
place = NULL;
if ((s->flags & SEC_ALLOC) == 0)
if ((s->flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0)
place = &hold[orphan_nonalloc];
else if ((s->flags & SEC_ALLOC) == 0)
;
else if ((s->flags & SEC_LOAD) != 0
&& ((iself && sh_type == SHT_NOTE)

30
ld/ldlang.c
View file

@ -1363,7 +1363,8 @@ lang_output_section_find_by_flags (const asection *sec,
return found;
}
if (sec->flags & SEC_CODE)
if ((sec->flags & SEC_CODE) != 0
&& (sec->flags & SEC_ALLOC) != 0)
{
/* Try for a rw code section. */
for (look = first; look; look = look->next)
@ -1383,7 +1384,8 @@ lang_output_section_find_by_flags (const asection *sec,
found = look;
}
}
else if (sec->flags & (SEC_READONLY | SEC_THREAD_LOCAL))
else if ((sec->flags & (SEC_READONLY | SEC_THREAD_LOCAL)) != 0
&& (sec->flags & SEC_ALLOC) != 0)
{
/* .rodata can go after .text, .sdata2 after .rodata. */
for (look = first; look; look = look->next)
@ -1404,7 +1406,8 @@ lang_output_section_find_by_flags (const asection *sec,
found = look;
}
}
else if (sec->flags & SEC_SMALL_DATA)
else if ((sec->flags & SEC_SMALL_DATA) != 0
&& (sec->flags & SEC_ALLOC) != 0)
{
/* .sdata goes after .data, .sbss after .sdata. */
for (look = first; look; look = look->next)
@ -1426,7 +1429,8 @@ lang_output_section_find_by_flags (const asection *sec,
found = look;
}
}
else if (sec->flags & SEC_HAS_CONTENTS)
else if ((sec->flags & SEC_HAS_CONTENTS) != 0
&& (sec->flags & SEC_ALLOC) != 0)
{
/* .data goes after .rodata. */
for (look = first; look; look = look->next)
@ -1446,9 +1450,9 @@ lang_output_section_find_by_flags (const asection *sec,
found = look;
}
}
else
else if ((sec->flags & SEC_ALLOC) != 0)
{
/* .bss goes last. */
/* .bss goes after any other alloc section. */
for (look = first; look; look = look->next)
{
flags = look->flags;
@ -1465,6 +1469,20 @@ lang_output_section_find_by_flags (const asection *sec,
found = look;
}
}
else
{
/* non-alloc go last. */
for (look = first; look; look = look->next)
{
flags = look->flags;
if (look->bfd_section != NULL)
flags = look->bfd_section->flags;
flags ^= sec->flags;
if (!(flags & SEC_DEBUGGING))
found = look;
}
return found;
}
if (found || !match_type)
return found;