/* symbols.c -symbol table-
Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
/* #define DEBUG_SYMS / * to debug symbol list maintenance. */
#define LOCAL_LABEL_CHAR '\002'
struct obstack notes;
+#ifdef USE_UNIQUE
+/* The name of an external symbol which is
+ used to make weak PE symbol names unique. */
+const char * an_external_name;
+#endif
-static char *save_symbol_name PARAMS ((const char *));
-static void fb_label_init PARAMS ((void));
-static long dollar_label_instance PARAMS ((long));
-static long fb_label_instance PARAMS ((long));
+static char *save_symbol_name (const char *);
+static void fb_label_init (void);
+static long dollar_label_instance (long);
+static long fb_label_instance (long);
-static void print_binary PARAMS ((FILE *, const char *, expressionS *));
+static void print_binary (FILE *, const char *, expressionS *);
+static void report_op_error (symbolS *, symbolS *, symbolS *);
/* Return a pointer to a new symbol. Die if we can't make a new
symbol. Fill in the symbol's values. Add symbol to end of symbol
output file, you can call symbol_create. */
symbolS *
-symbol_new (name, segment, valu, frag)
- const char *name;
- segT segment;
- valueT valu;
- fragS *frag;
+symbol_new (const char *name, segT segment, valueT valu, fragS *frag)
{
symbolS *symbolP = symbol_create (name, segment, valu, frag);
to the object file format. */
static char *
-save_symbol_name (name)
- const char *name;
+save_symbol_name (const char *name)
{
unsigned int name_length;
char *ret;
obstack_grow (¬es, name, name_length);
ret = obstack_finish (¬es);
-#ifdef STRIP_UNDERSCORE
- if (ret[0] == '_')
- ++ret;
-#endif
-
#ifdef tc_canonicalize_symbol_name
ret = tc_canonicalize_symbol_name (ret);
#endif
}
symbolS *
-symbol_create (name, segment, valu, frag)
- const char *name; /* It is copied, the caller can destroy/modify. */
- segT segment; /* Segment identifier (SEG_<something>). */
- valueT valu; /* Symbol value. */
- fragS *frag; /* Associated fragment. */
+symbol_create (const char *name, /* It is copied, the caller can destroy/modify. */
+ segT segment, /* Segment identifier (SEG_<something>). */
+ valueT valu, /* Symbol value. */
+ fragS *frag /* Associated fragment. */)
{
char *preserved_copy_of_name;
symbolS *symbolP;
/* Local symbol support. If we can get away with it, we keep only a
small amount of information for local symbols. */
-static struct local_symbol *local_symbol_make PARAMS ((const char *, segT,
- valueT, fragS *));
-static symbolS *local_symbol_convert PARAMS ((struct local_symbol *));
+static symbolS *local_symbol_convert (struct local_symbol *);
/* Used for statistics. */
/* Create a local symbol and insert it into the local hash table. */
static struct local_symbol *
-local_symbol_make (name, section, value, frag)
- const char *name;
- segT section;
- valueT value;
- fragS *frag;
+local_symbol_make (const char *name, segT section, valueT value, fragS *frag)
{
char *name_copy;
struct local_symbol *ret;
reclaim the space used by the local symbol. */
static symbolS *
-local_symbol_convert (locsym)
- struct local_symbol *locsym;
+local_symbol_convert (struct local_symbol *locsym)
{
symbolS *ret;
Gripes if we are redefining a symbol incompatibly (and ignores it). */
symbolS *
-colon (sym_name) /* Just seen "x:" - rattle symbols & frags. */
- const char *sym_name; /* Symbol name, as a cannonical string. */
- /* We copy this string: OK to alter later. */
+colon (/* Just seen "x:" - rattle symbols & frags. */
+ const char *sym_name /* Symbol name, as a cannonical string. */
+ /* We copy this string: OK to alter later. */)
{
register symbolS *symbolP; /* Symbol we are working with. */
fragS *frag_tmp;
char *frag_opcode;
- extern const int md_short_jump_size;
- extern const int md_long_jump_size;
+ if (now_seg == absolute_section)
+ {
+ as_bad (_("cannot define symbol `%s' in absolute section"), sym_name);
+ return NULL;
+ }
+
possible_bytes = (md_short_jump_size
+ new_broken_words * md_long_jump_size);
if (mri_common_symbol != NULL)
{
/* This symbol is actually being defined within an MRI common
- section. This requires special handling. */
+ section. This requires special handling. */
if (LOCAL_SYMBOL_CHECK (symbolP))
symbolP = local_symbol_convert ((struct local_symbol *) symbolP);
symbolP->sy_value.X_op = O_symbol;
/* Die if we can't insert the symbol. */
void
-symbol_table_insert (symbolP)
- symbolS *symbolP;
+symbol_table_insert (symbolS *symbolP)
{
register const char *error_string;
it into the symbol table. Return a pointer to it. */
symbolS *
-symbol_find_or_make (name)
- const char *name;
+symbol_find_or_make (const char *name)
{
register symbolS *symbolP;
}
symbolS *
-symbol_make (name)
- const char *name;
+symbol_make (const char *name)
{
symbolS *symbolP;
return (symbolP);
}
-/* Implement symbol table lookup.
- In: A symbol's name as a string: '\0' can't be part of a symbol name.
- Out: NULL if the name was not in the symbol table, else the address
- of a struct symbol associated with that name. */
+symbolS *
+symbol_temp_new (segT seg, valueT ofs, fragS *frag)
+{
+ return symbol_new (FAKE_LABEL_NAME, seg, ofs, frag);
+}
symbolS *
-symbol_find (name)
- const char *name;
+symbol_temp_new_now (void)
{
-#ifdef STRIP_UNDERSCORE
- return (symbol_find_base (name, 1));
-#else /* STRIP_UNDERSCORE */
- return (symbol_find_base (name, 0));
-#endif /* STRIP_UNDERSCORE */
+ return symbol_temp_new (now_seg, frag_now_fix (), frag_now);
}
symbolS *
-symbol_find_exact (name)
- const char *name;
+symbol_temp_make (void)
+{
+ return symbol_make (FAKE_LABEL_NAME);
+}
+
+/* Implement symbol table lookup.
+ In: A symbol's name as a string: '\0' can't be part of a symbol name.
+ Out: NULL if the name was not in the symbol table, else the address
+ of a struct symbol associated with that name. */
+
+symbolS *
+symbol_find_exact (const char *name)
{
#ifdef BFD_ASSEMBLER
{
}
symbolS *
-symbol_find_base (name, strip_underscore)
- const char *name;
- int strip_underscore;
+symbol_find (const char *name)
{
- if (strip_underscore && *name == '_')
- name++;
-
#ifdef tc_canonicalize_symbol_name
{
char *copy;
/* Link symbol ADDME after symbol TARGET in the chain. */
void
-symbol_append (addme, target, rootPP, lastPP)
- symbolS *addme;
- symbolS *target;
- symbolS **rootPP;
- symbolS **lastPP;
+symbol_append (symbolS *addme, symbolS *target,
+ symbolS **rootPP, symbolS **lastPP)
{
if (LOCAL_SYMBOL_CHECK (addme))
abort ();
/* Set the chain pointers of SYMBOL to null. */
void
-symbol_clear_list_pointers (symbolP)
- symbolS *symbolP;
+symbol_clear_list_pointers (symbolS *symbolP)
{
if (LOCAL_SYMBOL_CHECK (symbolP))
abort ();
/* Remove SYMBOLP from the list. */
void
-symbol_remove (symbolP, rootPP, lastPP)
- symbolS *symbolP;
- symbolS **rootPP;
- symbolS **lastPP;
+symbol_remove (symbolS *symbolP, symbolS **rootPP, symbolS **lastPP)
{
if (LOCAL_SYMBOL_CHECK (symbolP))
abort ();
/* Link symbol ADDME before symbol TARGET in the chain. */
void
-symbol_insert (addme, target, rootPP, lastPP)
- symbolS *addme;
- symbolS *target;
- symbolS **rootPP;
- symbolS **lastPP ATTRIBUTE_UNUSED;
+symbol_insert (symbolS *addme, symbolS *target,
+ symbolS **rootPP, symbolS **lastPP ATTRIBUTE_UNUSED)
{
if (LOCAL_SYMBOL_CHECK (addme))
abort ();
#endif /* SYMBOLS_NEED_BACKPOINTERS */
void
-verify_symbol_chain (rootP, lastP)
- symbolS *rootP;
- symbolS *lastP;
+verify_symbol_chain (symbolS *rootP, symbolS *lastP)
{
symbolS *symbolP = rootP;
assert (lastP == symbolP);
}
-void
-verify_symbol_chain_2 (sym)
- symbolS *sym;
+static void
+report_op_error (symbolS *symp, symbolS *left, symbolS *right)
{
- symbolS *p = sym, *n = sym;
-#ifdef SYMBOLS_NEED_BACKPOINTERS
- while (symbol_previous (p))
- p = symbol_previous (p);
-#endif
- while (symbol_next (n))
- n = symbol_next (n);
- verify_symbol_chain (p, n);
+ char *file;
+ unsigned int line;
+ segT seg_left = S_GET_SEGMENT (left);
+ segT seg_right = right ? S_GET_SEGMENT (right) : 0;
+
+ if (expr_symbol_where (symp, &file, &line))
+ {
+ if (seg_left == undefined_section)
+ as_bad_where (file, line,
+ _("undefined symbol `%s' in operation"),
+ S_GET_NAME (left));
+ if (seg_right == undefined_section)
+ as_bad_where (file, line,
+ _("undefined symbol `%s' in operation"),
+ S_GET_NAME (right));
+ if (seg_left != undefined_section
+ && seg_right != undefined_section)
+ {
+ if (right)
+ as_bad_where (file, line,
+ _("invalid sections for operation on `%s' and `%s'"),
+ S_GET_NAME (left), S_GET_NAME (right));
+ else
+ as_bad_where (file, line,
+ _("invalid section for operation on `%s'"),
+ S_GET_NAME (left));
+ }
+
+ }
+ else
+ {
+ if (seg_left == undefined_section)
+ as_bad (_("undefined symbol `%s' in operation setting `%s'"),
+ S_GET_NAME (left), S_GET_NAME (symp));
+ if (seg_right == undefined_section)
+ as_bad (_("undefined symbol `%s' in operation setting `%s'"),
+ S_GET_NAME (right), S_GET_NAME (symp));
+ if (seg_left != undefined_section
+ && seg_right != undefined_section)
+ {
+ if (right)
+ as_bad_where (file, line,
+ _("invalid sections for operation on `%s' and `%s' setting `%s'"),
+ S_GET_NAME (left), S_GET_NAME (right), S_GET_NAME (symp));
+ else
+ as_bad_where (file, line,
+ _("invalid section for operation on `%s' setting `%s'"),
+ S_GET_NAME (left), S_GET_NAME (symp));
+ }
+ }
}
/* Resolve the value of a symbol. This is called during the final
values. */
valueT
-resolve_symbol_value (symp)
- symbolS *symp;
+resolve_symbol_value (symbolS *symp)
{
int resolved;
valueT final_val = 0;
relocation to detect this case, and convert the
relocation to be against the symbol to which this symbol
is equated. */
- if (! S_IS_DEFINED (add_symbol) || S_IS_COMMON (add_symbol))
+ if (! S_IS_DEFINED (add_symbol)
+#if defined (OBJ_COFF) && defined (TE_PE) && (defined(BFD_ASSEMBLER) || defined(S_IS_WEAK))
+ || S_IS_WEAK (add_symbol)
+#endif
+ || S_IS_COMMON (add_symbol))
{
if (finalize_syms)
{
left = resolve_symbol_value (add_symbol);
seg_left = S_GET_SEGMENT (add_symbol);
+ /* By reducing these to the relevant dyadic operator, we get
+ !S -> S == 0 permitted on anything,
+ -S -> 0 - S only permitted on absolute
+ ~S -> S ^ ~0 only permitted on absolute */
+ if (op != O_logical_not && seg_left != absolute_section
+ && finalize_syms)
+ report_op_error (symp, add_symbol, NULL);
+
+ if (final_seg == expr_section || final_seg == undefined_section)
+ final_seg = absolute_section;
+
if (op == O_uminus)
left = -left;
else if (op == O_logical_not)
left = ~left;
final_val += left + symp->sy_frag->fr_address;
- if (final_seg == expr_section || final_seg == undefined_section)
- final_seg = seg_left;
resolved = symbol_resolved_p (add_symbol);
break;
Don't emit messages unless we're finalizing the symbol value,
otherwise we may get the same message multiple times. */
- if ((op == O_eq || op == O_ne)
- || ((op == O_subtract
- || op == O_lt || op == O_le || op == O_ge || op == O_gt)
- && seg_left == seg_right
- && (seg_left != undefined_section
- || add_symbol == op_symbol))
- || (seg_left == absolute_section
- && seg_right == absolute_section))
- {
- if (final_seg == expr_section || final_seg == undefined_section)
- final_seg = absolute_section;
- }
- else if (finalize_syms)
- {
- char *file;
- unsigned int line;
+ if (finalize_syms
+ && !(seg_left == absolute_section
+ && seg_right == absolute_section)
+ && !(op == O_eq || op == O_ne)
+ && !((op == O_subtract
+ || op == O_lt || op == O_le || op == O_ge || op == O_gt)
+ && seg_left == seg_right
+ && (seg_left != undefined_section
+ || add_symbol == op_symbol)))
+ report_op_error (symp, add_symbol, op_symbol);
- if (expr_symbol_where (symp, &file, &line))
- {
- if (seg_left == undefined_section)
- as_bad_where (file, line,
- _("undefined symbol `%s' in operation"),
- S_GET_NAME (symp->sy_value.X_add_symbol));
- if (seg_right == undefined_section)
- as_bad_where (file, line,
- _("undefined symbol `%s' in operation"),
- S_GET_NAME (symp->sy_value.X_op_symbol));
- if (seg_left != undefined_section
- && seg_right != undefined_section)
- as_bad_where (file, line,
- _("invalid section for operation"));
- }
- else
- {
- if (seg_left == undefined_section)
- as_bad (_("undefined symbol `%s' in operation setting `%s'"),
- S_GET_NAME (symp->sy_value.X_add_symbol),
- S_GET_NAME (symp));
- if (seg_right == undefined_section)
- as_bad (_("undefined symbol `%s' in operation setting `%s'"),
- S_GET_NAME (symp->sy_value.X_op_symbol),
- S_GET_NAME (symp));
- if (seg_left != undefined_section
- && seg_right != undefined_section)
- as_bad (_("invalid section for operation setting `%s'"),
- S_GET_NAME (symp));
- }
- /* Prevent the error propagating. */
- if (final_seg == expr_section || final_seg == undefined_section)
- final_seg = absolute_section;
- }
+ if (final_seg == expr_section || final_seg == undefined_section)
+ final_seg = absolute_section;
/* Check for division by zero. */
if ((op == O_divide || op == O_modulus) && right == 0)
#ifdef BFD_ASSEMBLER
-static void resolve_local_symbol PARAMS ((const char *, PTR));
+static void resolve_local_symbol (const char *, PTR);
/* A static function passed to hash_traverse. */
static void
-resolve_local_symbol (key, value)
- const char *key ATTRIBUTE_UNUSED;
- PTR value;
+resolve_local_symbol (const char *key ATTRIBUTE_UNUSED, PTR value)
{
if (value != NULL)
resolve_symbol_value (value);
/* Resolve all local symbols. */
void
-resolve_local_symbol_values ()
+resolve_local_symbol_values (void)
{
#ifdef BFD_ASSEMBLER
hash_traverse (local_hash, resolve_local_symbol);
static unsigned long dollar_label_max;
int
-dollar_label_defined (label)
- long label;
+dollar_label_defined (long label)
{
long *i;
}
static long
-dollar_label_instance (label)
- long label;
+dollar_label_instance (long label)
{
long *i;
}
void
-dollar_label_clear ()
+dollar_label_clear (void)
{
memset (dollar_label_defines, '\0', (unsigned int) dollar_label_count);
}
#define DOLLAR_LABEL_BUMP_BY 10
void
-define_dollar_label (label)
- long label;
+define_dollar_label (long label)
{
long *i;
of ^A. */
char * /* Return local label name. */
-dollar_label_name (n, augend)
- register long n; /* we just saw "n$:" : n a number. */
- register int augend; /* 0 for current instance, 1 for new instance. */
+dollar_label_name (register long n, /* we just saw "n$:" : n a number. */
+ register int augend /* 0 for current instance, 1 for new instance. */)
{
long i;
/* Returned to caller, then copied. Used for created names ("4f"). */
return symbol_name_build;
}
-/* Sombody else's idea of local labels. They are made by "n:" where n
+/* Somebody else's idea of local labels. They are made by "n:" where n
is any decimal digit. Refer to them with
"nb" for previous (backward) n:
or "nf" for next (forward) n:.
#define FB_LABEL_BUMP_BY (FB_LABEL_SPECIAL + 6)
static void
-fb_label_init ()
+fb_label_init (void)
{
memset ((void *) fb_low_counter, '\0', sizeof (fb_low_counter));
}
/* Add one to the instance number of this fb label. */
void
-fb_label_instance_inc (label)
- long label;
+fb_label_instance_inc (long label)
{
long *i;
}
static long
-fb_label_instance (label)
- long label;
+fb_label_instance (long label)
{
long *i;
place of ^B. */
char * /* Return local label name. */
-fb_label_name (n, augend)
- long n; /* We just saw "n:", "nf" or "nb" : n a number. */
- long augend; /* 0 for nb, 1 for n:, nf. */
+fb_label_name (long n, /* We just saw "n:", "nf" or "nb" : n a number. */
+ long augend /* 0 for nb, 1 for n:, nf. */)
{
long i;
/* Returned to caller, then copied. Used for created names ("4f"). */
char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */
know (n >= 0);
- know (augend == 0 || augend == 1);
+#ifdef TC_MMIX
+ know ((unsigned long) augend <= 2 /* See mmix_fb_label. */);
+#else
+ know ((unsigned long) augend <= 1);
+#endif
p = symbol_name_build;
#ifdef LOCAL_LABEL_PREFIX
*p++ = LOCAL_LABEL_PREFIX;
unaltered. This is used for error messages. */
char *
-decode_local_label_name (s)
- char *s;
+decode_local_label_name (char *s)
{
char *p;
char *symbol_decode;
/* Get the value of a symbol. */
valueT
-S_GET_VALUE (s)
- symbolS *s;
+S_GET_VALUE (symbolS *s)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
static symbolS *recur;
/* FIXME: In non BFD assemblers, S_IS_DEFINED and S_IS_COMMON
- may call S_GET_VALUE. We use a static symbol to avoid the
- immediate recursion. */
+ may call S_GET_VALUE. We use a static symbol to avoid the
+ immediate recursion. */
if (recur == s)
return (valueT) s->sy_value.X_add_number;
recur = s;
/* Set the value of a symbol. */
void
-S_SET_VALUE (s, val)
- symbolS *s;
- valueT val;
+S_SET_VALUE (symbolS *s, valueT val)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
}
void
-copy_symbol_attributes (dest, src)
- symbolS *dest, *src;
+copy_symbol_attributes (symbolS *dest, symbolS *src)
{
if (LOCAL_SYMBOL_CHECK (dest))
dest = local_symbol_convert ((struct local_symbol *) dest);
#ifdef BFD_ASSEMBLER
int
-S_IS_FUNCTION (s)
- symbolS *s;
+S_IS_FUNCTION (symbolS *s)
{
flagword flags;
}
int
-S_IS_EXTERNAL (s)
- symbolS *s;
+S_IS_EXTERNAL (symbolS *s)
{
flagword flags;
}
int
-S_IS_WEAK (s)
- symbolS *s;
+S_IS_WEAK (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
}
int
-S_IS_COMMON (s)
- symbolS *s;
+S_IS_COMMON (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
}
int
-S_IS_DEFINED (s)
- symbolS *s;
+S_IS_DEFINED (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return ((struct local_symbol *) s)->lsy_section != undefined_section;
symbols or eliminated from expressions, because they may be
overridden by the linker. */
int
-S_FORCE_RELOC (s)
- symbolS *s;
+S_FORCE_RELOC (symbolS *s, int strict)
{
if (LOCAL_SYMBOL_CHECK (s))
return ((struct local_symbol *) s)->lsy_section == undefined_section;
- return ((s->bsym->flags & BSF_WEAK) != 0
- || (EXTERN_FORCE_RELOC
- && (s->bsym->flags & BSF_GLOBAL) != 0)
+ return ((strict
+ && ((s->bsym->flags & BSF_WEAK) != 0
+ || (EXTERN_FORCE_RELOC
+ && (s->bsym->flags & BSF_GLOBAL) != 0)))
|| s->bsym->section == undefined_section
|| bfd_is_com_section (s->bsym->section));
}
int
-S_IS_DEBUG (s)
- symbolS *s;
+S_IS_DEBUG (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
}
int
-S_IS_LOCAL (s)
- symbolS *s;
+S_IS_LOCAL (symbolS *s)
{
flagword flags;
const char *name;
return 1;
if (flag_strip_local_absolute
- && (flags & BSF_GLOBAL) == 0
+ /* Keep BSF_FILE symbols in order to allow debuggers to identify
+ the source file even when the object file is stripped. */
+ && (flags & (BSF_GLOBAL | BSF_FILE)) == 0
&& bfd_get_section (s->bsym) == absolute_section)
return 1;
}
int
-S_IS_EXTERN (s)
- symbolS *s;
-{
- return S_IS_EXTERNAL (s);
-}
-
-int
-S_IS_STABD (s)
- symbolS *s;
+S_IS_STABD (symbolS *s)
{
return S_GET_NAME (s) == 0;
}
const char *
-S_GET_NAME (s)
- symbolS *s;
+S_GET_NAME (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return ((struct local_symbol *) s)->lsy_name;
}
segT
-S_GET_SEGMENT (s)
- symbolS *s;
+S_GET_SEGMENT (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return ((struct local_symbol *) s)->lsy_section;
}
void
-S_SET_SEGMENT (s, seg)
- symbolS *s;
- segT seg;
+S_SET_SEGMENT (symbolS *s, segT seg)
{
/* Don't reassign section symbols. The direct reason is to prevent seg
faults assigning back to const global symbols such as *ABS*, but it
}
void
-S_SET_EXTERNAL (s)
- symbolS *s;
+S_SET_EXTERNAL (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
}
s->bsym->flags |= BSF_GLOBAL;
s->bsym->flags &= ~(BSF_LOCAL | BSF_WEAK);
+
+#ifdef USE_UNIQUE
+ if (! an_external_name && S_GET_NAME(s)[0] != '.')
+ an_external_name = S_GET_NAME (s);
+#endif
}
void
-S_CLEAR_EXTERNAL (s)
- symbolS *s;
+S_CLEAR_EXTERNAL (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
}
void
-S_SET_WEAK (s)
- symbolS *s;
+S_SET_WEAK (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
}
void
-S_SET_NAME (s, name)
- symbolS *s;
- char *name;
+S_SET_THREAD_LOCAL (symbolS *s)
+{
+ if (LOCAL_SYMBOL_CHECK (s))
+ s = local_symbol_convert ((struct local_symbol *) s);
+ if (bfd_is_com_section (s->bsym->section)
+ && (s->bsym->flags & BSF_THREAD_LOCAL) != 0)
+ return;
+ s->bsym->flags |= BSF_THREAD_LOCAL;
+ if ((s->bsym->flags & BSF_FUNCTION) != 0)
+ as_bad (_("Accessing function `%s' as thread-local object"),
+ S_GET_NAME (s));
+ else if (! bfd_is_und_section (s->bsym->section)
+ && (s->bsym->section->flags & SEC_THREAD_LOCAL) == 0)
+ as_bad (_("Accessing `%s' as thread-local object"),
+ S_GET_NAME (s));
+}
+
+void
+S_SET_NAME (symbolS *s, const char *name)
{
if (LOCAL_SYMBOL_CHECK (s))
{
/* Return the previous symbol in a chain. */
symbolS *
-symbol_previous (s)
- symbolS *s;
+symbol_previous (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
abort ();
/* Return the next symbol in a chain. */
symbolS *
-symbol_next (s)
- symbolS *s;
+symbol_next (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
abort ();
/* Return a pointer to the value of a symbol as an expression. */
expressionS *
-symbol_get_value_expression (s)
- symbolS *s;
+symbol_get_value_expression (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
/* Set the value of a symbol to an expression. */
void
-symbol_set_value_expression (s, exp)
- symbolS *s;
- const expressionS *exp;
+symbol_set_value_expression (symbolS *s, const expressionS *exp)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
s->sy_value = *exp;
}
+/* Return a pointer to the X_add_number component of a symbol. */
+
+offsetT *
+symbol_X_add_number (symbolS *s)
+{
+#ifdef BFD_ASSEMBLER
+ if (LOCAL_SYMBOL_CHECK (s))
+ return (offsetT *) &((struct local_symbol *) s)->lsy_value;
+#endif
+
+ return &s->sy_value.X_add_number;
+}
+
+/* Set the value of SYM to the current position in the current segment. */
+
+void
+symbol_set_value_now (symbolS *sym)
+{
+ S_SET_SEGMENT (sym, now_seg);
+ S_SET_VALUE (sym, frag_now_fix ());
+ symbol_set_frag (sym, frag_now);
+}
+
/* Set the frag of a symbol. */
void
-symbol_set_frag (s, f)
- symbolS *s;
- fragS *f;
+symbol_set_frag (symbolS *s, fragS *f)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
/* Return the frag of a symbol. */
fragS *
-symbol_get_frag (s)
- symbolS *s;
+symbol_get_frag (symbolS *s)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
/* Mark a symbol as having been used. */
void
-symbol_mark_used (s)
- symbolS *s;
+symbol_mark_used (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
/* Clear the mark of whether a symbol has been used. */
void
-symbol_clear_used (s)
- symbolS *s;
+symbol_clear_used (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
/* Return whether a symbol has been used. */
int
-symbol_used_p (s)
- symbolS *s;
+symbol_used_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 1;
/* Mark a symbol as having been used in a reloc. */
void
-symbol_mark_used_in_reloc (s)
- symbolS *s;
+symbol_mark_used_in_reloc (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
/* Clear the mark of whether a symbol has been used in a reloc. */
void
-symbol_clear_used_in_reloc (s)
- symbolS *s;
+symbol_clear_used_in_reloc (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
/* Return whether a symbol has been used in a reloc. */
int
-symbol_used_in_reloc_p (s)
- symbolS *s;
+symbol_used_in_reloc_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
/* Mark a symbol as an MRI common symbol. */
void
-symbol_mark_mri_common (s)
- symbolS *s;
+symbol_mark_mri_common (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
/* Clear the mark of whether a symbol is an MRI common symbol. */
void
-symbol_clear_mri_common (s)
- symbolS *s;
+symbol_clear_mri_common (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
/* Return whether a symbol is an MRI common symbol. */
int
-symbol_mri_common_p (s)
- symbolS *s;
+symbol_mri_common_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
/* Mark a symbol as having been written. */
void
-symbol_mark_written (s)
- symbolS *s;
+symbol_mark_written (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
/* Clear the mark of whether a symbol has been written. */
void
-symbol_clear_written (s)
- symbolS *s;
+symbol_clear_written (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
/* Return whether a symbol has been written. */
int
-symbol_written_p (s)
- symbolS *s;
+symbol_written_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
/* Mark a symbol has having been resolved. */
void
-symbol_mark_resolved (s)
- symbolS *s;
+symbol_mark_resolved (symbolS *s)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
/* Return whether a symbol has been resolved. */
int
-symbol_resolved_p (s)
- symbolS *s;
+symbol_resolved_p (symbolS *s)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
/* Return whether a symbol is a section symbol. */
int
-symbol_section_p (s)
- symbolS *s ATTRIBUTE_UNUSED;
+symbol_section_p (symbolS *s ATTRIBUTE_UNUSED)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
/* Return whether a symbol is equated to another symbol. */
int
-symbol_equated_p (s)
- symbolS *s;
+symbol_equated_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
treated specially when writing out relocs. */
int
-symbol_equated_reloc_p (s)
- symbolS *s;
+symbol_equated_reloc_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
resolve_symbol_value to flag expression syms that have been
equated. */
return (s->sy_value.X_op == O_symbol
+#if defined (OBJ_COFF) && defined (TE_PE) && (defined(BFD_ASSEMBLER) || defined(S_IS_WEAK))
+ && ! S_IS_WEAK (s)
+#endif
&& ((s->sy_resolved && s->sy_value.X_op_symbol != NULL)
|| ! S_IS_DEFINED (s)
|| S_IS_COMMON (s)));
/* Return whether a symbol has a constant value. */
int
-symbol_constant_p (s)
- symbolS *s;
+symbol_constant_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 1;
/* Return the BFD symbol for a symbol. */
asymbol *
-symbol_get_bfdsym (s)
- symbolS *s;
+symbol_get_bfdsym (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
/* Set the BFD symbol for a symbol. */
void
-symbol_set_bfdsym (s, bsym)
- symbolS *s;
- asymbol *bsym;
+symbol_set_bfdsym (symbolS *s, asymbol *bsym)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
- s->bsym = bsym;
+ /* Usually, it is harmless to reset a symbol to a BFD section
+ symbol. For example, obj_elf_change_section sets the BFD symbol
+ of an old symbol with the newly created section symbol. But when
+ we have multiple sections with the same name, the newly created
+ section may have the same name as an old section. We check if the
+ old symbol has been already marked as a section symbol before
+ resetting it. */
+ if ((s->bsym->flags & BSF_SECTION_SYM) == 0)
+ s->bsym = bsym;
+ /* else XXX - What do we do now ? */
}
#endif /* BFD_ASSEMBLER */
/* Get a pointer to the object format information for a symbol. */
OBJ_SYMFIELD_TYPE *
-symbol_get_obj (s)
- symbolS *s;
+symbol_get_obj (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
/* Set the object format information for a symbol. */
void
-symbol_set_obj (s, o)
- symbolS *s;
- OBJ_SYMFIELD_TYPE *o;
+symbol_set_obj (symbolS *s, OBJ_SYMFIELD_TYPE *o)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
/* Get a pointer to the processor information for a symbol. */
TC_SYMFIELD_TYPE *
-symbol_get_tc (s)
- symbolS *s;
+symbol_get_tc (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
/* Set the processor information for a symbol. */
void
-symbol_set_tc (s, o)
- symbolS *s;
- TC_SYMFIELD_TYPE *o;
+symbol_set_tc (symbolS *s, TC_SYMFIELD_TYPE *o)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
#endif /* TC_SYMFIELD_TYPE */
void
-symbol_begin ()
+symbol_begin (void)
{
symbol_lastP = NULL;
symbol_rootP = NULL; /* In case we have 0 symbols (!!) */
/* Maximum indent level.
Available for modification inside a gdb session. */
-int max_indent_level = 8;
-
-#if 0
-
-static void
-indent ()
-{
- printf ("%*s", indent_level * 4, "");
-}
-
-#endif
+static int max_indent_level = 8;
void
-print_symbol_value_1 (file, sym)
- FILE *file;
- symbolS *sym;
+print_symbol_value_1 (FILE *file, symbolS *sym)
{
const char *name = S_GET_NAME (sym);
if (!name || !name[0])
fprintf (file, " used");
if (S_IS_LOCAL (sym))
fprintf (file, " local");
- if (S_IS_EXTERN (sym))
+ if (S_IS_EXTERNAL (sym))
fprintf (file, " extern");
if (S_IS_DEBUG (sym))
fprintf (file, " debug");
}
void
-print_symbol_value (sym)
- symbolS *sym;
+print_symbol_value (symbolS *sym)
{
indent_level = 0;
print_symbol_value_1 (stderr, sym);
}
static void
-print_binary (file, name, exp)
- FILE *file;
- const char *name;
- expressionS *exp;
+print_binary (FILE *file, const char *name, expressionS *exp)
{
indent_level++;
fprintf (file, "%s\n%*s<", name, indent_level * 4, "");
}
void
-print_expr_1 (file, exp)
- FILE *file;
- expressionS *exp;
+print_expr_1 (FILE *file, expressionS *exp)
{
fprintf (file, "expr %lx ", (long) exp);
switch (exp->X_op)
}
void
-print_expr (exp)
- expressionS *exp;
+print_expr (expressionS *exp)
{
print_expr_1 (stderr, exp);
fprintf (stderr, "\n");
}
void
-symbol_print_statistics (file)
- FILE *file;
+symbol_print_statistics (FILE *file)
{
hash_print_statistics (file, "symbol table", sy_hash);
#ifdef BFD_ASSEMBLER
projects / deliverable / binutils-gdb.git / blobdiff