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authorBob Wilson <bob.wilson@acm.org>2006-08-25 00:08:55 +0000
committerBob Wilson <bob.wilson@acm.org>2006-08-25 00:08:55 +0000
commit74869ac7a4dcde1530155889456cbaa37f87b60c (patch)
tree32cc691da7fb5deb179c941ac93ec9c1455a0052 /bfd/elf32-xtensa.c
parentca0ef6cdf077270a80c887eafe8a41806a6bd8ad (diff)
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* elf32-xtensa.c (xtensa_get_property_section_name): Delete. (xtensa_get_property_section): New. (xtensa_read_table_entries): Use xtensa_get_property_section. (relax_property_section, xtensa_get_property_predef_flags): Handle group name suffixes in property section names. (match_section_group): New. gas/ * config/tc-xtensa.c (FINI_LITERAL_SECTION_NAME): Delete. (INIT_LITERAL_SECTION_NAME): Delete. (lit_state struct): Remove segment names, init_lit_seg, and fini_lit_seg. Add lit_prefix and current_text_seg. (init_literal_head_h, init_literal_head): Delete. (fini_literal_head_h, fini_literal_head): Delete. (xtensa_begin_directive): Move argument parsing to xtensa_literal_prefix function. (xtensa_end_directive): Deallocate lit_prefix field of lit_state. (xtensa_literal_prefix): Parse the directive argument here and record it in the lit_prefix field. Remove code to derive literal section names. (linkonce_len): New. (get_is_linkonce_section): Use linkonce_len. Check for any ".gnu.linkonce.*" section, not just text sections. (md_begin): Remove initialization of deleted lit_state fields. (xtensa_reorder_segments, xtensa_post_relax_hook): Remove references to init_literal_head and fini_literal_head. (xtensa_move_literals): Likewise. Skip literals for .init and .fini when traversing literal_head list. (match_section_group): New. (cache_literal_section): Rewrite to determine the literal section name on the fly, create the section and return it. (xtensa_switch_to_literal_fragment): Adjust for cache_literal_section. (xtensa_switch_to_non_abs_literal_fragment): Likewise. (xtensa_create_property_segments, xtensa_create_xproperty_segments): Use xtensa_get_property_section from bfd. (retrieve_xtensa_section): Delete. * doc/c-xtensa.texi (Xtensa Options): Fix --text-section-literals description to refer to plural literal sections and add xref to the Literal Directive section. (Literal Directive): Describe new rules for deriving literal section names. Add footnote for special case of .init/.fini with --text-section-literals. (Literal Prefix Directive): Replace old naming rules with xref to the Literal Directive section. ld/ * emulparams/elf32xtensa.sh (.xt.prop): Add .xt.prop.*. * scripttempl/elfxtensa.sc (.text): Add .literal.*.
Diffstat (limited to 'bfd/elf32-xtensa.c')
-rw-r--r--bfd/elf32-xtensa.c76
1 files changed, 62 insertions, 14 deletions
diff --git a/bfd/elf32-xtensa.c b/bfd/elf32-xtensa.c
index 5efdcba..88365dd 100644
--- a/bfd/elf32-xtensa.c
+++ b/bfd/elf32-xtensa.c
@@ -106,7 +106,7 @@ static bfd_boolean xtensa_is_property_section (asection *);
static bfd_boolean xtensa_is_littable_section (asection *);
static int internal_reloc_compare (const void *, const void *);
static int internal_reloc_matches (const void *, const void *);
-extern char *xtensa_get_property_section_name (asection *, const char *);
+extern asection *xtensa_get_property_section (asection *, const char *);
static flagword xtensa_get_property_predef_flags (asection *);
/* Other functions called directly by the linker. */
@@ -571,7 +571,6 @@ xtensa_read_table_entries (bfd *abfd,
bfd_boolean output_addr)
{
asection *table_section;
- char *table_section_name;
bfd_size_type table_size = 0;
bfd_byte *table_data;
property_table_entry *blocks;
@@ -590,9 +589,7 @@ xtensa_read_table_entries (bfd *abfd,
return 0;
}
- table_section_name = xtensa_get_property_section_name (section, sec_name);
- table_section = bfd_get_section_by_name (abfd, table_section_name);
- free (table_section_name);
+ table_section = xtensa_get_property_section (section, sec_name);
if (table_section)
table_size = table_section->size;
@@ -8857,7 +8854,8 @@ relax_property_section (bfd *abfd,
}
is_full_prop_section =
- ((strcmp (sec->name, XTENSA_PROP_SEC_NAME) == 0)
+ ((strncmp (sec->name, XTENSA_PROP_SEC_NAME,
+ sizeof (XTENSA_PROP_SEC_NAME) - 1) == 0)
|| (strncmp (sec->name, ".gnu.linkonce.prop.",
sizeof ".gnu.linkonce.prop." - 1) == 0));
@@ -9593,13 +9591,42 @@ internal_reloc_matches (const void *ap, const void *bp)
}
-char *
-xtensa_get_property_section_name (asection *sec, const char *base_name)
+/* Predicate function used to look up a section in a particular group. */
+
+static bfd_boolean
+match_section_group (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf)
+{
+ const char *gname = inf;
+ const char *group_name = elf_group_name (sec);
+
+ return (group_name == gname
+ || (group_name != NULL
+ && gname != NULL
+ && strcmp (group_name, gname) == 0));
+}
+
+
+asection *
+xtensa_get_property_section (asection *sec, const char *base_name)
{
- if (strncmp (sec->name, ".gnu.linkonce.", linkonce_len) == 0)
+ const char *suffix, *group_name;
+ char *prop_sec_name;
+ asection *prop_sec;
+
+ group_name = elf_group_name (sec);
+ if (group_name)
+ {
+ suffix = strrchr (sec->name, '.');
+ if (suffix == sec->name)
+ suffix = 0;
+ prop_sec_name = (char *) bfd_malloc (strlen (base_name) + 1
+ + (suffix ? strlen (suffix) : 0));
+ strcpy (prop_sec_name, base_name);
+ if (suffix)
+ strcat (prop_sec_name, suffix);
+ }
+ else if (strncmp (sec->name, ".gnu.linkonce.", linkonce_len) == 0)
{
- char *prop_sec_name;
- const char *suffix;
char *linkonce_kind = 0;
if (strcmp (base_name, XTENSA_INSN_SEC_NAME) == 0)
@@ -9622,18 +9649,39 @@ xtensa_get_property_section_name (asection *sec, const char *base_name)
if (strncmp (suffix, "t.", 2) == 0 && linkonce_kind[1] == '.')
suffix += 2;
strcat (prop_sec_name + linkonce_len, suffix);
+ }
+ else
+ prop_sec_name = strdup (base_name);
+
+ /* Check if the section already exists. */
+ prop_sec = bfd_get_section_by_name_if (sec->owner, prop_sec_name,
+ match_section_group,
+ (void *) group_name);
+ /* If not, create it. */
+ if (! prop_sec)
+ {
+ flagword flags = (SEC_RELOC | SEC_HAS_CONTENTS | SEC_READONLY);
+ flags |= (bfd_get_section_flags (sec->owner, sec)
+ & (SEC_LINK_ONCE | SEC_LINK_DUPLICATES));
+
+ prop_sec = bfd_make_section_anyway_with_flags
+ (sec->owner, strdup (prop_sec_name), flags);
+ if (! prop_sec)
+ return 0;
- return prop_sec_name;
+ elf_group_name (prop_sec) = group_name;
}
- return strdup (base_name);
+ free (prop_sec_name);
+ return prop_sec;
}
flagword
xtensa_get_property_predef_flags (asection *sec)
{
- if (strcmp (sec->name, XTENSA_INSN_SEC_NAME) == 0
+ if (strncmp (sec->name, XTENSA_INSN_SEC_NAME,
+ sizeof (XTENSA_INSN_SEC_NAME) - 1) == 0
|| strncmp (sec->name, ".gnu.linkonce.x.",
sizeof ".gnu.linkonce.x." - 1) == 0)
return (XTENSA_PROP_INSN