/* Object file "section" support for the BFD library.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
Written by Cygnus Support.
. || ((SEC) == bfd_com_section_ptr) \
. || ((SEC) == bfd_ind_section_ptr))
.
-.extern const struct bfd_symbol * const bfd_abs_symbol;
-.extern const struct bfd_symbol * const bfd_com_symbol;
-.extern const struct bfd_symbol * const bfd_und_symbol;
-.extern const struct bfd_symbol * const bfd_ind_symbol;
-.
.{* Macros to handle insertion and deletion of a bfd's sections. These
. only handle the list pointers, ie. do not adjust section_count,
. target_index etc. *}
.#define bfd_section_removed_from_list(ABFD, S) \
. ((S)->next == NULL ? (ABFD)->section_last != (S) : (S)->next->prev != (S))
.
-.#define BFD_FAKE_SECTION(SEC, FLAGS, SYM, SYM_PTR, NAME, IDX) \
+.#define BFD_FAKE_SECTION(SEC, FLAGS, SYM, NAME, IDX) \
. {* name, id, index, next, prev, flags, user_set_vma, *} \
. { NAME, IDX, 0, NULL, NULL, FLAGS, 0, \
. \
. {* target_index, used_by_bfd, constructor_chain, owner, *} \
. 0, NULL, NULL, NULL, \
. \
-. {* symbol, *} \
-. (struct bfd_symbol *) SYM, \
-. \
-. {* symbol_ptr_ptr, *} \
-. (struct bfd_symbol **) SYM_PTR, \
+. {* symbol, symbol_ptr_ptr, *} \
+. (struct bfd_symbol *) SYM, &SEC.symbol, \
. \
. {* map_head, map_tail *} \
. { NULL }, { NULL } \
GLOBAL_SYM_INIT (BFD_IND_SECTION_NAME, &bfd_ind_section)
};
-#define STD_SECTION(SEC, FLAGS, SYM, NAME, IDX) \
- const asymbol * const SYM = (asymbol *) &global_syms[IDX]; \
- asection SEC = BFD_FAKE_SECTION(SEC, FLAGS, &global_syms[IDX], &SYM, \
+#define STD_SECTION(SEC, FLAGS, NAME, IDX) \
+ asection SEC = BFD_FAKE_SECTION(SEC, FLAGS, &global_syms[IDX], \
NAME, IDX)
-STD_SECTION (bfd_com_section, SEC_IS_COMMON, bfd_com_symbol,
- BFD_COM_SECTION_NAME, 0);
-STD_SECTION (bfd_und_section, 0, bfd_und_symbol, BFD_UND_SECTION_NAME, 1);
-STD_SECTION (bfd_abs_section, 0, bfd_abs_symbol, BFD_ABS_SECTION_NAME, 2);
-STD_SECTION (bfd_ind_section, 0, bfd_ind_symbol, BFD_IND_SECTION_NAME, 3);
+STD_SECTION (bfd_com_section, SEC_IS_COMMON, BFD_COM_SECTION_NAME, 0);
+STD_SECTION (bfd_und_section, 0, BFD_UND_SECTION_NAME, 1);
+STD_SECTION (bfd_abs_section, 0, BFD_ABS_SECTION_NAME, 2);
+STD_SECTION (bfd_ind_section, 0, BFD_IND_SECTION_NAME, 3);
#undef STD_SECTION
-struct section_hash_entry
-{
- struct bfd_hash_entry root;
- asection section;
-};
-
/* Initialize an entry in the section hash table. */
struct bfd_hash_entry *
((struct section_hash_entry *) \
bfd_hash_lookup ((table), (string), (create), (copy)))
-/* Initializes a new section. NEWSECT->NAME is already set. */
+/* Create a symbol whose only job is to point to this section. This
+ is useful for things like relocs which are relative to the base
+ of a section. */
-static asection *
-bfd_section_init (bfd *abfd, asection *newsect)
+bfd_boolean
+_bfd_generic_new_section_hook (bfd *abfd, asection *newsect)
{
- static int section_id = 0x10; /* id 0 to 3 used by STD_SECTION. */
-
- newsect->id = section_id;
- newsect->index = abfd->section_count;
- newsect->owner = abfd;
-
- /* Create a symbol whose only job is to point to this section. This
- is useful for things like relocs which are relative to the base
- of a section. */
newsect->symbol = bfd_make_empty_symbol (abfd);
if (newsect->symbol == NULL)
- return NULL;
+ return FALSE;
newsect->symbol->name = newsect->name;
newsect->symbol->value = 0;
newsect->symbol->flags = BSF_SECTION_SYM;
newsect->symbol_ptr_ptr = &newsect->symbol;
+ return TRUE;
+}
+
+/* Initializes a new section. NEWSECT->NAME is already set. */
+
+static asection *
+bfd_section_init (bfd *abfd, asection *newsect)
+{
+ static int section_id = 0x10; /* id 0 to 3 used by STD_SECTION. */
+
+ newsect->id = section_id;
+ newsect->index = abfd->section_count;
+ newsect->owner = abfd;
if (! BFD_SEND (abfd, _new_section_hook, (abfd, newsect)))
return NULL;
asection *
bfd_make_section_old_way (bfd *abfd, const char *name)
{
- struct section_hash_entry *sh;
asection *newsect;
if (abfd->output_has_begun)
}
if (strcmp (name, BFD_ABS_SECTION_NAME) == 0)
- return bfd_abs_section_ptr;
-
- if (strcmp (name, BFD_COM_SECTION_NAME) == 0)
- return bfd_com_section_ptr;
+ newsect = bfd_abs_section_ptr;
+ else if (strcmp (name, BFD_COM_SECTION_NAME) == 0)
+ newsect = bfd_com_section_ptr;
+ else if (strcmp (name, BFD_UND_SECTION_NAME) == 0)
+ newsect = bfd_und_section_ptr;
+ else if (strcmp (name, BFD_IND_SECTION_NAME) == 0)
+ newsect = bfd_ind_section_ptr;
+ else
+ {
+ struct section_hash_entry *sh;
- if (strcmp (name, BFD_UND_SECTION_NAME) == 0)
- return bfd_und_section_ptr;
+ sh = section_hash_lookup (&abfd->section_htab, name, TRUE, FALSE);
+ if (sh == NULL)
+ return NULL;
- if (strcmp (name, BFD_IND_SECTION_NAME) == 0)
- return bfd_ind_section_ptr;
+ newsect = &sh->section;
+ if (newsect->name != NULL)
+ {
+ /* Section already exists. */
+ return newsect;
+ }
- sh = section_hash_lookup (&abfd->section_htab, name, TRUE, FALSE);
- if (sh == NULL)
- return NULL;
-
- newsect = &sh->section;
- if (newsect->name != NULL)
- {
- /* Section already exists. */
- return newsect;
+ newsect->name = name;
+ return bfd_section_init (abfd, newsect);
}
- newsect->name = name;
- return bfd_section_init (abfd, newsect);
+ /* Call new_section_hook when "creating" the standard abs, com, und
+ and ind sections to tack on format specific section data.
+ Also, create a proper section symbol. */
+ if (! BFD_SEND (abfd, _new_section_hook, (abfd, newsect)))
+ return NULL;
+ return newsect;
}
/*
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