/* ELF object file format
Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
symbolP = get_sym_from_input_line_and_check ();
c = *input_line_pointer;
S_SET_WEAK (symbolP);
- symbol_get_obj (symbolP)->local = 1;
if (c == ',')
{
input_line_pointer++;
/* A section on Alpha may have SHF_ALPHA_GPREL. */
else if ((attr & ~ssect->attr) == SHF_ALPHA_GPREL)
override = TRUE;
+#endif
+#ifdef TC_RX
+ else if (attr == (SHF_EXECINSTR | SHF_WRITE | SHF_ALLOC)
+ && (ssect->type == SHT_INIT_ARRAY
+ || ssect->type == SHT_FINI_ARRAY
+ || ssect->type == SHT_PREINIT_ARRAY))
+ /* RX init/fini arrays can and should have the "awx" attributes set. */
+ ;
#endif
else
{
}
static bfd_vma
-obj_elf_parse_section_letters (char *str, size_t len, bfd_boolean *clone)
+obj_elf_parse_section_letters (char *str, size_t len, bfd_boolean *is_clone)
{
bfd_vma attr = 0;
- *clone = FALSE;
+ *is_clone = FALSE;
while (len > 0)
{
attr |= SHF_TLS;
break;
case '?':
- *clone = TRUE;
+ *is_clone = TRUE;
break;
/* Compatibility. */
case 'm':
char *bad_msg = _("unrecognized .section attribute: want a,e,w,x,M,S,G,T");
#ifdef md_elf_section_letter
bfd_vma md_attr = md_elf_section_letter (*str, &bad_msg);
- if (md_attr > 0)
+ if (md_attr != (bfd_vma) -1)
attr |= md_attr;
else
#endif
if (*input_line_pointer == '"')
{
- bfd_boolean clone;
+ bfd_boolean is_clone;
beg = demand_copy_C_string (&dummy);
if (beg == NULL)
ignore_rest_of_line ();
return;
}
- attr |= obj_elf_parse_section_letters (beg, strlen (beg), &clone);
+ attr |= obj_elf_parse_section_letters (beg, strlen (beg), &is_clone);
SKIP_WHITESPACE ();
if (*input_line_pointer == ',')
attr &= ~SHF_MERGE;
}
- if ((attr & SHF_GROUP) != 0 && clone)
+ if ((attr & SHF_GROUP) != 0 && is_clone)
{
as_warn (_("? section flag ignored with G present"));
- clone = FALSE;
+ is_clone = FALSE;
}
if ((attr & SHF_GROUP) != 0 && *input_line_pointer == ',')
{
group_name = obj_elf_section_name ();
if (group_name == NULL)
attr &= ~SHF_GROUP;
- else if (strncmp (input_line_pointer, ",comdat", 7) == 0)
+ else if (*input_line_pointer == ',')
{
- input_line_pointer += 7;
- linkonce = 1;
+ ++input_line_pointer;
+ SKIP_WHITESPACE ();
+ if (strncmp (input_line_pointer, "comdat", 6) == 0)
+ {
+ input_line_pointer += 6;
+ linkonce = 1;
+ }
}
else if (strncmp (name, ".gnu.linkonce", 13) == 0)
linkonce = 1;
attr &= ~SHF_GROUP;
}
- if (clone)
+ if (is_clone)
{
const char *now_group = elf_group_name (now_seg);
if (now_group != NULL)
const struct elf_backend_data *bed;
bed = get_elf_backend_data (stdoutput);
- if (!(bed->elf_osabi == ELFOSABI_LINUX
- /* GNU/Linux is still using the default value 0. */
+ if (!(bed->elf_osabi == ELFOSABI_GNU
+ || bed->elf_osabi == ELFOSABI_FREEBSD
+ /* GNU is still using the default value 0. */
|| bed->elf_osabi == ELFOSABI_NONE))
- as_bad (_("symbol type \"%s\" is supported only by GNU targets"),
+ as_bad (_("symbol type \"%s\" is supported only by GNU and FreeBSD targets"),
type_name);
type = BSF_FUNCTION | BSF_GNU_INDIRECT_FUNCTION;
}
struct elf_backend_data *bed;
bed = (struct elf_backend_data *) get_elf_backend_data (stdoutput);
- if (!(bed->elf_osabi == ELFOSABI_LINUX
- /* GNU/Linux is still using the default value 0. */
+ if (!(bed->elf_osabi == ELFOSABI_GNU
+ /* GNU is still using the default value 0. */
|| bed->elf_osabi == ELFOSABI_NONE))
as_bad (_("symbol type \"%s\" is supported only by GNU targets"),
type_name);
type = BSF_OBJECT | BSF_GNU_UNIQUE;
- /* PR 10549: Always set OSABI field to LINUX for objects containing unique symbols. */
- bed->elf_osabi = ELFOSABI_LINUX;
+ /* PR 10549: Always set OSABI field to GNU for objects containing unique symbols. */
+ bed->elf_osabi = ELFOSABI_GNU;
}
#ifdef md_elf_symbol_type
else if ((type = md_elf_symbol_type (type_name, sym, elfsym)) != -1)
strcpy (stabstr_name, segment_name (seg));
strcat (stabstr_name, "str");
stroff = get_stab_string_offset (file, stabstr_name);
- know (stroff == 1);
+ know (stroff == 1 || (stroff == 0 && file[0] == '\0'));
md_number_to_chars (p, stroff, 4);
seg_info (seg)->stabu.p = p;
}
elf_frob_symbol (symbolS *symp, int *puntp)
{
struct elf_obj_sy *sy_obj;
+ expressionS *size;
#ifdef NEED_ECOFF_DEBUG
if (ECOFF_DEBUGGING)
sy_obj = symbol_get_obj (symp);
- if (sy_obj->size != NULL)
+ size = sy_obj->size;
+ if (size != NULL)
{
- switch (sy_obj->size->X_op)
+ if (resolve_expression (size)
+ && size->X_op == O_constant)
+ S_SET_SIZE (symp, size->X_add_number);
+ else
{
- case O_subtract:
- S_SET_SIZE (symp,
- (S_GET_VALUE (sy_obj->size->X_add_symbol)
- + sy_obj->size->X_add_number
- - S_GET_VALUE (sy_obj->size->X_op_symbol)));
- break;
- case O_constant:
- S_SET_SIZE (symp,
- (S_GET_VALUE (sy_obj->size->X_add_symbol)
- + sy_obj->size->X_add_number));
- break;
- default:
- as_bad (_(".size expression too complicated to fix up"));
- break;
+ if (flag_size_check == size_check_error)
+ as_bad (_(".size expression for %s "
+ "does not evaluate to a constant"), S_GET_NAME (symp));
+ else
+ as_warn (_(".size expression for %s "
+ "does not evaluate to a constant"), S_GET_NAME (symp));
}
free (sy_obj->size);
sy_obj->size = NULL;
}
void
-elf_frob_file (void)
+elf_adjust_symtab (void)
{
struct group_list list;
unsigned int i;
- bfd_map_over_sections (stdoutput, adjust_stab_sections, NULL);
-
/* Go find section groups. */
list.num_group = 0;
list.head = NULL;
list.elt_count = NULL;
- list.indexes = hash_new ();
+ list.indexes = hash_new ();
bfd_map_over_sections (stdoutput, build_group_lists, &list);
-
+
/* Make the SHT_GROUP sections that describe each section group. We
can't set up the section contents here yet, because elf section
indices have yet to be calculated. elf.c:set_group_contents does
the rest of the work. */
- for (i = 0; i < list.num_group; i++)
+ for (i = 0; i < list.num_group; i++)
{
const char *group_name = elf_group_name (list.head[i]);
const char *sec_name;
asection *s;
flagword flags;
struct symbol *sy;
- int has_sym;
bfd_size_type size;
flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_GROUP;
}
}
- sec_name = group_name;
- sy = symbol_find_exact (group_name);
- has_sym = 0;
- if (sy != NULL
- && (sy == symbol_lastP
- || (sy->sy_next != NULL
- && sy->sy_next->sy_previous == sy)))
- {
- has_sym = 1;
- sec_name = ".group";
- }
+ sec_name = ".group";
s = subseg_force_new (sec_name, 0);
if (s == NULL
|| !bfd_set_section_flags (stdoutput, s, flags)
/* Pass a pointer to the first section in this group. */
elf_next_in_group (s) = list.head[i];
- if (has_sym)
- elf_group_id (s) = sy->bsym;
+ /* Make sure that the signature symbol for the group has the
+ name of the group. */
+ sy = symbol_find_exact (group_name);
+ if (!sy
+ || (sy != symbol_lastP
+ && (sy->sy_next == NULL
+ || sy->sy_next->sy_previous != sy)))
+ {
+ /* Create the symbol now. */
+ sy = symbol_new (group_name, now_seg, (valueT) 0, frag_now);
+#ifdef TE_SOLARIS
+ /* Before Solaris 11 build 154, Sun ld rejects local group
+ signature symbols, so make them weak hidden instead. */
+ symbol_get_bfdsym (sy)->flags |= BSF_WEAK;
+ S_SET_OTHER (sy, STV_HIDDEN);
+#else
+ symbol_get_obj (sy)->local = 1;
+#endif
+ symbol_table_insert (sy);
+ }
+ elf_group_id (s) = symbol_get_bfdsym (sy);
size = 4 * (list.elt_count[i] + 1);
bfd_set_section_size (stdoutput, s, size);
frag_wane (frag_now);
}
-#ifdef elf_tc_final_processing
- elf_tc_final_processing ();
-#endif
-
/* Cleanup hash. */
hash_traverse (list.indexes, free_section_idx);
hash_die (list.indexes);
}
+void
+elf_frob_file (void)
+{
+ bfd_map_over_sections (stdoutput, adjust_stab_sections, NULL);
+
+#ifdef elf_tc_final_processing
+ elf_tc_final_processing ();
+#endif
+}
+
/* It removes any unneeded versioned symbols from the symbol table. */
void
#endif /* SCO_ELF */
+static void
+elf_generate_asm_lineno (void)
+{
+#ifdef NEED_ECOFF_DEBUG
+ if (ECOFF_DEBUGGING)
+ ecoff_generate_asm_lineno ();
+#endif
+}
+
+static void
+elf_process_stab (segT sec ATTRIBUTE_UNUSED,
+ int what ATTRIBUTE_UNUSED,
+ const char *string ATTRIBUTE_UNUSED,
+ int type ATTRIBUTE_UNUSED,
+ int other ATTRIBUTE_UNUSED,
+ int desc ATTRIBUTE_UNUSED)
+{
+#ifdef NEED_ECOFF_DEBUG
+ if (ECOFF_DEBUGGING)
+ ecoff_stab (sec, what, string, type, other, desc);
+#endif
+}
+
static int
elf_separate_stab_sections (void)
{
0, /* s_get_type */
0, /* s_set_type */
elf_copy_symbol_attributes,
-#ifdef NEED_ECOFF_DEBUG
- ecoff_generate_asm_lineno,
- ecoff_stab,
-#else
- 0, /* generate_asm_lineno */
- 0, /* process_stab */
-#endif
+ elf_generate_asm_lineno,
+ elf_process_stab,
elf_separate_stab_sections,
elf_init_stab_section,
elf_sec_sym_ok_for_reloc,
#endif
elf_obj_read_begin_hook,
elf_obj_symbol_new_hook,
- 0
+ 0,
+ elf_adjust_symtab
};
projects / binutils-gdb.git / blobdiff