#include "as.h"
#include "safe-ctype.h"
#include "obstack.h"
#include "subsegs.h"
#include "struc-symbol.h"
int symbols_case_sensitive = 1;
#ifndef WORKING_DOT_WORD
extern int new_broken_words;
#endif
static struct hash_control *sy_hash;
static struct hash_control *local_hash;
symbolS *symbol_rootP;
symbolS *symbol_lastP;
symbolS abs_symbol;
#ifdef DEBUG_SYMS
#define debug_verify_symchain verify_symbol_chain
#else
#define debug_verify_symchain(root, last) ((void) 0)
#endif
#define DOLLAR_LABEL_CHAR '\001'
#define LOCAL_LABEL_CHAR '\002'
struct obstack notes;
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 (FILE *, const char *, expressionS *);
static void report_op_error (symbolS *, symbolS *, symbolS *);
symbolS *
symbol_new (const char *name, segT segment, valueT valu, fragS *frag)
{
symbolS *symbolP = symbol_create (name, segment, valu, frag);
#ifdef BFD_ASSEMBLER
{
extern int symbol_table_frozen;
if (symbol_table_frozen)
abort ();
}
#endif
symbol_append (symbolP, symbol_lastP, &symbol_rootP, &symbol_lastP);
return symbolP;
}
static char *
save_symbol_name (const char *name)
{
unsigned int name_length;
char *ret;
name_length = strlen (name) + 1;
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
if (! symbols_case_sensitive)
{
char *s;
for (s = ret; *s != '\0'; s++)
*s = TOUPPER (*s);
}
return ret;
}
symbolS *
symbol_create (const char *name,
segT segment,
valueT valu,
fragS *frag )
{
char *preserved_copy_of_name;
symbolS *symbolP;
preserved_copy_of_name = save_symbol_name (name);
symbolP = (symbolS *) obstack_alloc (¬es, sizeof (symbolS));
memset (symbolP, 0, sizeof (symbolS));
#ifdef BFD_ASSEMBLER
symbolP->bsym = bfd_make_empty_symbol (stdoutput);
if (symbolP->bsym == NULL)
as_perror ("%s", "bfd_make_empty_symbol");
symbolP->bsym->udata.p = (PTR) symbolP;
#endif
S_SET_NAME (symbolP, preserved_copy_of_name);
S_SET_SEGMENT (symbolP, segment);
S_SET_VALUE (symbolP, valu);
symbol_clear_list_pointers (symbolP);
symbolP->sy_frag = frag;
#ifndef BFD_ASSEMBLER
symbolP->sy_number = ~0;
symbolP->sy_name_offset = (unsigned int) ~0;
#endif
obj_symbol_new_hook (symbolP);
#ifdef tc_symbol_new_hook
tc_symbol_new_hook (symbolP);
#endif
return symbolP;
}
#ifdef BFD_ASSEMBLER
static symbolS *local_symbol_convert (struct local_symbol *);
static unsigned long local_symbol_count;
static unsigned long local_symbol_conversion_count;
#define LOCAL_SYMBOL_CHECK(s) \
(s->bsym == NULL \
? (local_symbol_converted_p ((struct local_symbol *) s) \
? (s = local_symbol_get_real_symbol ((struct local_symbol *) s), \
0) \
: 1) \
: 0)
struct local_symbol *
local_symbol_make (const char *name, segT section, valueT value, fragS *frag)
{
char *name_copy;
struct local_symbol *ret;
++local_symbol_count;
name_copy = save_symbol_name (name);
ret = (struct local_symbol *) obstack_alloc (¬es, sizeof *ret);
ret->lsy_marker = NULL;
ret->lsy_name = name_copy;
ret->lsy_section = section;
local_symbol_set_frag (ret, frag);
ret->lsy_value = value;
hash_jam (local_hash, name_copy, (PTR) ret);
return ret;
}
static symbolS *
local_symbol_convert (struct local_symbol *locsym)
{
symbolS *ret;
assert (locsym->lsy_marker == NULL);
if (local_symbol_converted_p (locsym))
return local_symbol_get_real_symbol (locsym);
++local_symbol_conversion_count;
ret = symbol_new (locsym->lsy_name, locsym->lsy_section, locsym->lsy_value,
local_symbol_get_frag (locsym));
if (local_symbol_resolved_p (locsym))
ret->sy_resolved = 1;
ret->sy_used = 1;
#ifdef TC_LOCAL_SYMFIELD_CONVERT
TC_LOCAL_SYMFIELD_CONVERT (locsym, ret);
#endif
symbol_table_insert (ret);
local_symbol_mark_converted (locsym);
local_symbol_set_real_symbol (locsym, ret);
hash_jam (local_hash, locsym->lsy_name, NULL);
return ret;
}
#else
#define LOCAL_SYMBOL_CHECK(s) 0
#define local_symbol_convert(s) ((symbolS *) s)
#endif
symbolS *
colon (
const char *sym_name
)
{
register symbolS *symbolP;
if (LOCAL_LABELS_DOLLAR)
{
int local;
#ifdef BFD_ASSEMBLER
local = bfd_is_local_label_name (stdoutput, sym_name);
#else
local = LOCAL_LABEL (sym_name);
#endif
if (! local)
dollar_label_clear ();
}
#ifndef WORKING_DOT_WORD
if (new_broken_words)
{
struct broken_word *a;
int possible_bytes;
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);
frag_tmp = frag_now;
frag_opcode = frag_var (rs_broken_word,
possible_bytes,
possible_bytes,
(relax_substateT) 0,
(symbolS *) broken_words,
(offsetT) 0,
NULL);
while (frag_tmp
&& (frag_tmp->fr_type != rs_broken_word
|| frag_tmp->fr_opcode))
frag_tmp = frag_tmp->fr_next;
know (frag_tmp);
frag_tmp->fr_opcode = frag_opcode;
new_broken_words = 0;
for (a = broken_words; a && a->dispfrag == 0; a = a->next_broken_word)
a->dispfrag = frag_tmp;
}
#endif
if ((symbolP = symbol_find (sym_name)) != 0)
{
#ifdef RESOLVE_SYMBOL_REDEFINITION
if (RESOLVE_SYMBOL_REDEFINITION (symbolP))
return symbolP;
#endif
if (LOCAL_SYMBOL_CHECK (symbolP))
{
#ifdef BFD_ASSEMBLER
struct local_symbol *locsym = (struct local_symbol *) symbolP;
if (locsym->lsy_section != undefined_section
&& (local_symbol_get_frag (locsym) != frag_now
|| locsym->lsy_section != now_seg
|| locsym->lsy_value != frag_now_fix ()))
{
as_bad (_("symbol `%s' is already defined"), sym_name);
return symbolP;
}
locsym->lsy_section = now_seg;
local_symbol_set_frag (locsym, frag_now);
locsym->lsy_value = frag_now_fix ();
#endif
}
else if (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP))
{
if (S_GET_VALUE (symbolP) == 0)
{
symbolP->sy_frag = frag_now;
#ifdef OBJ_VMS
S_SET_OTHER (symbolP, const_flag);
#endif
S_SET_VALUE (symbolP, (valueT) frag_now_fix ());
S_SET_SEGMENT (symbolP, now_seg);
#ifdef N_UNDF
know (N_UNDF == 0);
#endif
}
else
{
if (((!S_IS_DEBUG (symbolP)
&& (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP))
&& S_IS_EXTERNAL (symbolP))
|| S_GET_SEGMENT (symbolP) == bss_section)
&& (now_seg == data_section
|| now_seg == S_GET_SEGMENT (symbolP)))
{
if (now_seg != data_section)
{
if (S_GET_VALUE (symbolP)
< ((unsigned) frag_now_fix ()))
{
S_SET_VALUE (symbolP, (valueT) frag_now_fix ());
}
}
else
{
symbolP->sy_frag = frag_now;
#ifdef OBJ_VMS
S_SET_OTHER (symbolP, const_flag);
#endif
S_SET_VALUE (symbolP, (valueT) frag_now_fix ());
S_SET_SEGMENT (symbolP, now_seg);
}
}
else
{
#if (!defined (OBJ_AOUT) && !defined (OBJ_MAYBE_AOUT) \
&& !defined (OBJ_BOUT) && !defined (OBJ_MAYBE_BOUT))
static const char *od_buf = "";
#else
char od_buf[100];
od_buf[0] = '\0';
#ifdef BFD_ASSEMBLER
if (OUTPUT_FLAVOR == bfd_target_aout_flavour)
#endif
sprintf (od_buf, "%d.%d.",
S_GET_OTHER (symbolP),
S_GET_DESC (symbolP));
#endif
as_bad (_("symbol `%s' is already defined as \"%s\"/%s%ld"),
sym_name,
segment_name (S_GET_SEGMENT (symbolP)),
od_buf,
(long) S_GET_VALUE (symbolP));
}
}
}
else
{
if (!(frag_now == symbolP->sy_frag
&& S_GET_VALUE (symbolP) == frag_now_fix ()
&& S_GET_SEGMENT (symbolP) == now_seg))
as_bad (_("symbol `%s' is already defined"), sym_name);
}
}
#ifdef BFD_ASSEMBLER
else if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, sym_name))
{
symbolP = (symbolS *) local_symbol_make (sym_name, now_seg,
(valueT) frag_now_fix (),
frag_now);
}
#endif
else
{
symbolP = symbol_new (sym_name, now_seg, (valueT) frag_now_fix (),
frag_now);
#ifdef OBJ_VMS
S_SET_OTHER (symbolP, const_flag);
#endif
symbol_table_insert (symbolP);
}
if (mri_common_symbol != NULL)
{
if (LOCAL_SYMBOL_CHECK (symbolP))
symbolP = local_symbol_convert ((struct local_symbol *) symbolP);
symbolP->sy_value.X_op = O_symbol;
symbolP->sy_value.X_add_symbol = mri_common_symbol;
symbolP->sy_value.X_add_number = S_GET_VALUE (mri_common_symbol);
symbolP->sy_frag = &zero_address_frag;
S_SET_SEGMENT (symbolP, expr_section);
symbolP->sy_mri_common = 1;
}
#ifdef tc_frob_label
tc_frob_label (symbolP);
#endif
#ifdef obj_frob_label
obj_frob_label (symbolP);
#endif
return symbolP;
}
void
symbol_table_insert (symbolS *symbolP)
{
register const char *error_string;
know (symbolP);
know (S_GET_NAME (symbolP));
if (LOCAL_SYMBOL_CHECK (symbolP))
{
error_string = hash_jam (local_hash, S_GET_NAME (symbolP),
(PTR) symbolP);
if (error_string != NULL)
as_fatal (_("inserting \"%s\" into symbol table failed: %s"),
S_GET_NAME (symbolP), error_string);
return;
}
if ((error_string = hash_jam (sy_hash, S_GET_NAME (symbolP), (PTR) symbolP)))
{
as_fatal (_("inserting \"%s\" into symbol table failed: %s"),
S_GET_NAME (symbolP), error_string);
}
}
symbolS *
symbol_find_or_make (const char *name)
{
register symbolS *symbolP;
symbolP = symbol_find (name);
if (symbolP == NULL)
{
#ifdef BFD_ASSEMBLER
if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, name))
{
symbolP = md_undefined_symbol ((char *) name);
if (symbolP != NULL)
return symbolP;
symbolP = (symbolS *) local_symbol_make (name, undefined_section,
(valueT) 0,
&zero_address_frag);
return symbolP;
}
#endif
symbolP = symbol_make (name);
symbol_table_insert (symbolP);
}
return (symbolP);
}
symbolS *
symbol_make (const char *name)
{
symbolS *symbolP;
symbolP = md_undefined_symbol ((char *) name);
if (!symbolP)
symbolP = symbol_new (name, undefined_section, (valueT) 0, &zero_address_frag);
return (symbolP);
}
symbolS *
symbol_temp_new (segT seg, valueT ofs, fragS *frag)
{
return symbol_new (FAKE_LABEL_NAME, seg, ofs, frag);
}
symbolS *
symbol_temp_new_now (void)
{
return symbol_temp_new (now_seg, frag_now_fix (), frag_now);
}
symbolS *
symbol_temp_make (void)
{
return symbol_make (FAKE_LABEL_NAME);
}
symbolS *
symbol_find (const char *name)
{
#ifdef STRIP_UNDERSCORE
return (symbol_find_base (name, 1));
#else
return (symbol_find_base (name, 0));
#endif
}
symbolS *
symbol_find_exact (const char *name)
{
#ifdef BFD_ASSEMBLER
{
struct local_symbol *locsym;
locsym = (struct local_symbol *) hash_find (local_hash, name);
if (locsym != NULL)
return (symbolS *) locsym;
}
#endif
return ((symbolS *) hash_find (sy_hash, name));
}
symbolS *
symbol_find_base (const char *name, int strip_underscore)
{
if (strip_underscore && *name == '_')
name++;
#ifdef tc_canonicalize_symbol_name
{
char *copy;
size_t len = strlen (name) + 1;
copy = (char *) alloca (len);
memcpy (copy, name, len);
name = tc_canonicalize_symbol_name (copy);
}
#endif
if (! symbols_case_sensitive)
{
char *copy;
const char *orig;
unsigned char c;
orig = name;
name = copy = (char *) alloca (strlen (name) + 1);
while ((c = *orig++) != '\0')
{
*copy++ = TOUPPER (c);
}
*copy = '\0';
}
return symbol_find_exact (name);
}
void
symbol_append (symbolS *addme, symbolS *target,
symbolS **rootPP, symbolS **lastPP)
{
if (LOCAL_SYMBOL_CHECK (addme))
abort ();
if (target != NULL && LOCAL_SYMBOL_CHECK (target))
abort ();
if (target == NULL)
{
know (*rootPP == NULL);
know (*lastPP == NULL);
addme->sy_next = NULL;
#ifdef SYMBOLS_NEED_BACKPOINTERS
addme->sy_previous = NULL;
#endif
*rootPP = addme;
*lastPP = addme;
return;
}
if (target->sy_next != NULL)
{
#ifdef SYMBOLS_NEED_BACKPOINTERS
target->sy_next->sy_previous = addme;
#endif
}
else
{
know (*lastPP == target);
*lastPP = addme;
}
addme->sy_next = target->sy_next;
target->sy_next = addme;
#ifdef SYMBOLS_NEED_BACKPOINTERS
addme->sy_previous = target;
#endif
debug_verify_symchain (symbol_rootP, symbol_lastP);
}
void
symbol_clear_list_pointers (symbolS *symbolP)
{
if (LOCAL_SYMBOL_CHECK (symbolP))
abort ();
symbolP->sy_next = NULL;
#ifdef SYMBOLS_NEED_BACKPOINTERS
symbolP->sy_previous = NULL;
#endif
}
#ifdef SYMBOLS_NEED_BACKPOINTERS
void
symbol_remove (symbolS *symbolP, symbolS **rootPP, symbolS **lastPP)
{
if (LOCAL_SYMBOL_CHECK (symbolP))
abort ();
if (symbolP == *rootPP)
{
*rootPP = symbolP->sy_next;
}
if (symbolP == *lastPP)
{
*lastPP = symbolP->sy_previous;
}
if (symbolP->sy_next != NULL)
{
symbolP->sy_next->sy_previous = symbolP->sy_previous;
}
if (symbolP->sy_previous != NULL)
{
symbolP->sy_previous->sy_next = symbolP->sy_next;
}
debug_verify_symchain (*rootPP, *lastPP);
}
void
symbol_insert (symbolS *addme, symbolS *target,
symbolS **rootPP, symbolS **lastPP ATTRIBUTE_UNUSED)
{
if (LOCAL_SYMBOL_CHECK (addme))
abort ();
if (LOCAL_SYMBOL_CHECK (target))
abort ();
if (target->sy_previous != NULL)
{
target->sy_previous->sy_next = addme;
}
else
{
know (*rootPP == target);
*rootPP = addme;
}
addme->sy_previous = target->sy_previous;
target->sy_previous = addme;
addme->sy_next = target;
debug_verify_symchain (*rootPP, *lastPP);
}
#endif
void
verify_symbol_chain (symbolS *rootP, symbolS *lastP)
{
symbolS *symbolP = rootP;
if (symbolP == NULL)
return;
for (; symbol_next (symbolP) != NULL; symbolP = symbol_next (symbolP))
{
#ifdef BFD_ASSEMBLER
assert (symbolP->bsym != NULL);
#endif
#ifdef SYMBOLS_NEED_BACKPOINTERS
assert (symbolP->sy_next->sy_previous == symbolP);
#else
;
#endif
}
assert (lastP == symbolP);
}
void
verify_symbol_chain_2 (symbolS *sym)
{
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);
}
static void
report_op_error (symbolS *symp, symbolS *left, symbolS *right)
{
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));
}
}
}
valueT
resolve_symbol_value (symbolS *symp)
{
int resolved;
valueT final_val = 0;
segT final_seg;
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (symp))
{
struct local_symbol *locsym = (struct local_symbol *) symp;
final_val = locsym->lsy_value;
if (local_symbol_resolved_p (locsym))
return final_val;
final_val += local_symbol_get_frag (locsym)->fr_address / OCTETS_PER_BYTE;
if (finalize_syms)
{
locsym->lsy_value = final_val;
local_symbol_mark_resolved (locsym);
}
return final_val;
}
#endif
if (symp->sy_resolved)
{
if (symp->sy_value.X_op == O_constant)
return (valueT) symp->sy_value.X_add_number;
else
return 0;
}
resolved = 0;
final_seg = S_GET_SEGMENT (symp);
if (symp->sy_resolving)
{
if (finalize_syms)
as_bad (_("symbol definition loop encountered at `%s'"),
S_GET_NAME (symp));
final_val = 0;
resolved = 1;
}
else
{
symbolS *add_symbol, *op_symbol;
offsetT left, right;
segT seg_left, seg_right;
operatorT op;
symp->sy_resolving = 1;
add_symbol = symp->sy_value.X_add_symbol;
op_symbol = symp->sy_value.X_op_symbol;
final_val = symp->sy_value.X_add_number;
op = symp->sy_value.X_op;
switch (op)
{
default:
BAD_CASE (op);
break;
case O_absent:
final_val = 0;
case O_constant:
final_val += symp->sy_frag->fr_address / OCTETS_PER_BYTE;
if (final_seg == expr_section)
final_seg = absolute_section;
resolved = 1;
break;
case O_symbol:
case O_symbol_rva:
left = resolve_symbol_value (add_symbol);
seg_left = S_GET_SEGMENT (add_symbol);
if (finalize_syms)
symp->sy_value.X_op_symbol = NULL;
do_symbol:
if (symp->sy_mri_common)
{
resolved = symbol_resolved_p (add_symbol);
break;
}
if (finalize_syms && final_val == 0)
{
if (LOCAL_SYMBOL_CHECK (add_symbol))
add_symbol = local_symbol_convert ((struct local_symbol *)
add_symbol);
copy_symbol_attributes (symp, add_symbol);
}
if (! S_IS_DEFINED (add_symbol) || S_IS_COMMON (add_symbol))
{
if (finalize_syms)
{
symp->sy_value.X_op = O_symbol;
symp->sy_value.X_add_symbol = add_symbol;
symp->sy_value.X_add_number = final_val;
symp->sy_value.X_op_symbol = add_symbol;
final_seg = seg_left;
}
final_val = 0;
resolved = symbol_resolved_p (add_symbol);
symp->sy_resolving = 0;
goto exit_dont_set_value;
}
else if (finalize_syms && final_seg == expr_section
&& seg_left != expr_section)
{
symp->sy_value.X_op = O_symbol;
symp->sy_value.X_add_symbol = add_symbol;
symp->sy_value.X_add_number = final_val;
symp->sy_value.X_op_symbol = add_symbol;
final_seg = seg_left;
final_val += symp->sy_frag->fr_address + left;
resolved = symbol_resolved_p (add_symbol);
symp->sy_resolving = 0;
goto exit_dont_set_value;
}
else
{
final_val += symp->sy_frag->fr_address + left;
if (final_seg == expr_section || final_seg == undefined_section)
final_seg = seg_left;
}
resolved = symbol_resolved_p (add_symbol);
break;
case O_uminus:
case O_bit_not:
case O_logical_not:
left = resolve_symbol_value (add_symbol);
seg_left = S_GET_SEGMENT (add_symbol);
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;
else
left = ~left;
final_val += left + symp->sy_frag->fr_address;
resolved = symbol_resolved_p (add_symbol);
break;
case O_multiply:
case O_divide:
case O_modulus:
case O_left_shift:
case O_right_shift:
case O_bit_inclusive_or:
case O_bit_or_not:
case O_bit_exclusive_or:
case O_bit_and:
case O_add:
case O_subtract:
case O_eq:
case O_ne:
case O_lt:
case O_le:
case O_ge:
case O_gt:
case O_logical_and:
case O_logical_or:
left = resolve_symbol_value (add_symbol);
right = resolve_symbol_value (op_symbol);
seg_left = S_GET_SEGMENT (add_symbol);
seg_right = S_GET_SEGMENT (op_symbol);
if (op == O_add)
{
if (seg_right == absolute_section)
{
final_val += right;
goto do_symbol;
}
else if (seg_left == absolute_section)
{
final_val += left;
add_symbol = op_symbol;
left = right;
seg_left = seg_right;
goto do_symbol;
}
}
else if (op == O_subtract)
{
if (seg_right == absolute_section)
{
final_val -= right;
goto do_symbol;
}
}
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 (final_seg == expr_section || final_seg == undefined_section)
final_seg = absolute_section;
if ((op == O_divide || op == O_modulus) && right == 0)
{
if (seg_right == absolute_section && finalize_syms)
{
char *file;
unsigned int line;
if (expr_symbol_where (symp, &file, &line))
as_bad_where (file, line, _("division by zero"));
else
as_bad (_("division by zero when setting `%s'"),
S_GET_NAME (symp));
}
right = 1;
}
switch (symp->sy_value.X_op)
{
case O_multiply: left *= right; break;
case O_divide: left /= right; break;
case O_modulus: left %= right; break;
case O_left_shift: left <<= right; break;
case O_right_shift: left >>= right; break;
case O_bit_inclusive_or: left |= right; break;
case O_bit_or_not: left |= ~right; break;
case O_bit_exclusive_or: left ^= right; break;
case O_bit_and: left &= right; break;
case O_add: left += right; break;
case O_subtract: left -= right; break;
case O_eq:
case O_ne:
left = (left == right && seg_left == seg_right
&& (seg_left != undefined_section
|| add_symbol == op_symbol)
? ~ (offsetT) 0 : 0);
if (symp->sy_value.X_op == O_ne)
left = ~left;
break;
case O_lt: left = left < right ? ~ (offsetT) 0 : 0; break;
case O_le: left = left <= right ? ~ (offsetT) 0 : 0; break;
case O_ge: left = left >= right ? ~ (offsetT) 0 : 0; break;
case O_gt: left = left > right ? ~ (offsetT) 0 : 0; break;
case O_logical_and: left = left && right; break;
case O_logical_or: left = left || right; break;
default: abort ();
}
final_val += symp->sy_frag->fr_address + left;
if (final_seg == expr_section || final_seg == undefined_section)
{
if (seg_left == undefined_section
|| seg_right == undefined_section)
final_seg = undefined_section;
else if (seg_left == absolute_section)
final_seg = seg_right;
else
final_seg = seg_left;
}
resolved = (symbol_resolved_p (add_symbol)
&& symbol_resolved_p (op_symbol));
break;
case O_register:
case O_big:
case O_illegal:
break;
}
symp->sy_resolving = 0;
}
if (finalize_syms)
S_SET_VALUE (symp, final_val);
exit_dont_set_value:
#if defined (OBJ_AOUT) && ! defined (BFD_ASSEMBLER)
if (final_seg != S_GET_SEGMENT (symp))
#endif
S_SET_SEGMENT (symp, final_seg);
if (finalize_syms)
{
if (resolved)
symp->sy_resolved = 1;
else if (S_GET_SEGMENT (symp) != expr_section)
{
as_bad (_("can't resolve value for symbol `%s'"),
S_GET_NAME (symp));
symp->sy_resolved = 1;
}
}
return final_val;
}
#ifdef BFD_ASSEMBLER
static void resolve_local_symbol (const char *, PTR);
static void
resolve_local_symbol (const char *key ATTRIBUTE_UNUSED, PTR value)
{
if (value != NULL)
resolve_symbol_value (value);
}
#endif
void
resolve_local_symbol_values (void)
{
#ifdef BFD_ASSEMBLER
hash_traverse (local_hash, resolve_local_symbol);
#endif
}
static long *dollar_labels;
static long *dollar_label_instances;
static char *dollar_label_defines;
static unsigned long dollar_label_count;
static unsigned long dollar_label_max;
int
dollar_label_defined (long label)
{
long *i;
know ((dollar_labels != NULL) || (dollar_label_count == 0));
for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i)
if (*i == label)
return dollar_label_defines[i - dollar_labels];
return 0;
}
static long
dollar_label_instance (long label)
{
long *i;
know ((dollar_labels != NULL) || (dollar_label_count == 0));
for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i)
if (*i == label)
return (dollar_label_instances[i - dollar_labels]);
return 0;
}
void
dollar_label_clear (void)
{
memset (dollar_label_defines, '\0', (unsigned int) dollar_label_count);
}
#define DOLLAR_LABEL_BUMP_BY 10
void
define_dollar_label (long label)
{
long *i;
for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i)
if (*i == label)
{
++dollar_label_instances[i - dollar_labels];
dollar_label_defines[i - dollar_labels] = 1;
return;
}
if (dollar_labels == NULL)
{
dollar_labels = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long));
dollar_label_instances = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long));
dollar_label_defines = xmalloc (DOLLAR_LABEL_BUMP_BY);
dollar_label_max = DOLLAR_LABEL_BUMP_BY;
dollar_label_count = 0;
}
else if (dollar_label_count == dollar_label_max)
{
dollar_label_max += DOLLAR_LABEL_BUMP_BY;
dollar_labels = (long *) xrealloc ((char *) dollar_labels,
dollar_label_max * sizeof (long));
dollar_label_instances = (long *) xrealloc ((char *) dollar_label_instances,
dollar_label_max * sizeof (long));
dollar_label_defines = xrealloc (dollar_label_defines, dollar_label_max);
}
dollar_labels[dollar_label_count] = label;
dollar_label_instances[dollar_label_count] = 1;
dollar_label_defines[dollar_label_count] = 1;
++dollar_label_count;
}
char *
dollar_label_name (register long n,
register int augend )
{
long i;
static char symbol_name_build[24];
register char *p;
register char *q;
char symbol_name_temporary[20];
know (n >= 0);
know (augend == 0 || augend == 1);
p = symbol_name_build;
#ifdef LOCAL_LABEL_PREFIX
*p++ = LOCAL_LABEL_PREFIX;
#endif
*p++ = 'L';
q = symbol_name_temporary;
for (*q++ = 0, i = n; i; ++q)
{
*q = i % 10 + '0';
i /= 10;
}
while ((*p = *--q) != '\0')
++p;
*p++ = DOLLAR_LABEL_CHAR;
q = symbol_name_temporary;
for (*q++ = 0, i = dollar_label_instance (n) + augend; i; ++q)
{
*q = i % 10 + '0';
i /= 10;
}
while ((*p++ = *--q) != '\0');;
return symbol_name_build;
}
#define FB_LABEL_SPECIAL (10)
static long fb_low_counter[FB_LABEL_SPECIAL];
static long *fb_labels;
static long *fb_label_instances;
static long fb_label_count;
static long fb_label_max;
#define FB_LABEL_BUMP_BY (FB_LABEL_SPECIAL + 6)
static void
fb_label_init (void)
{
memset ((void *) fb_low_counter, '\0', sizeof (fb_low_counter));
}
void
fb_label_instance_inc (long label)
{
long *i;
if (label < FB_LABEL_SPECIAL)
{
++fb_low_counter[label];
return;
}
if (fb_labels != NULL)
{
for (i = fb_labels + FB_LABEL_SPECIAL;
i < fb_labels + fb_label_count; ++i)
{
if (*i == label)
{
++fb_label_instances[i - fb_labels];
return;
}
}
}
if (fb_labels == NULL)
{
fb_labels = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long));
fb_label_instances = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long));
fb_label_max = FB_LABEL_BUMP_BY;
fb_label_count = FB_LABEL_SPECIAL;
}
else if (fb_label_count == fb_label_max)
{
fb_label_max += FB_LABEL_BUMP_BY;
fb_labels = (long *) xrealloc ((char *) fb_labels,
fb_label_max * sizeof (long));
fb_label_instances = (long *) xrealloc ((char *) fb_label_instances,
fb_label_max * sizeof (long));
}
fb_labels[fb_label_count] = label;
fb_label_instances[fb_label_count] = 1;
++fb_label_count;
}
static long
fb_label_instance (long label)
{
long *i;
if (label < FB_LABEL_SPECIAL)
{
return (fb_low_counter[label]);
}
if (fb_labels != NULL)
{
for (i = fb_labels + FB_LABEL_SPECIAL;
i < fb_labels + fb_label_count; ++i)
{
if (*i == label)
{
return (fb_label_instances[i - fb_labels]);
}
}
}
return 0;
}
char *
fb_label_name (long n,
long augend )
{
long i;
static char symbol_name_build[24];
register char *p;
register char *q;
char symbol_name_temporary[20];
know (n >= 0);
know (augend == 0 || augend == 1);
p = symbol_name_build;
#ifdef LOCAL_LABEL_PREFIX
*p++ = LOCAL_LABEL_PREFIX;
#endif
*p++ = 'L';
q = symbol_name_temporary;
for (*q++ = 0, i = n; i; ++q)
{
*q = i % 10 + '0';
i /= 10;
}
while ((*p = *--q) != '\0')
++p;
*p++ = LOCAL_LABEL_CHAR;
q = symbol_name_temporary;
for (*q++ = 0, i = fb_label_instance (n) + augend; i; ++q)
{
*q = i % 10 + '0';
i /= 10;
}
while ((*p++ = *--q) != '\0');;
return (symbol_name_build);
}
char *
decode_local_label_name (char *s)
{
char *p;
char *symbol_decode;
int label_number;
int instance_number;
char *type;
const char *message_format;
int index = 0;
#ifdef LOCAL_LABEL_PREFIX
if (s[index] == LOCAL_LABEL_PREFIX)
++index;
#endif
if (s[index] != 'L')
return s;
for (label_number = 0, p = s + index + 1; ISDIGIT (*p); ++p)
label_number = (10 * label_number) + *p - '0';
if (*p == DOLLAR_LABEL_CHAR)
type = "dollar";
else if (*p == LOCAL_LABEL_CHAR)
type = "fb";
else
return s;
for (instance_number = 0, p++; ISDIGIT (*p); ++p)
instance_number = (10 * instance_number) + *p - '0';
message_format = _("\"%d\" (instance number %d of a %s label)");
symbol_decode = obstack_alloc (¬es, strlen (message_format) + 30);
sprintf (symbol_decode, message_format, label_number, instance_number, type);
return symbol_decode;
}
valueT
S_GET_VALUE (symbolS *s)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
return resolve_symbol_value (s);
#endif
if (!s->sy_resolved)
{
valueT val = resolve_symbol_value (s);
if (!finalize_syms)
return val;
}
if (s->sy_value.X_op != O_constant)
{
static symbolS *recur;
if (recur == s)
return (valueT) s->sy_value.X_add_number;
recur = s;
if (! s->sy_resolved
|| s->sy_value.X_op != O_symbol
|| (S_IS_DEFINED (s) && ! S_IS_COMMON (s)))
as_bad (_("attempt to get value of unresolved symbol `%s'"),
S_GET_NAME (s));
recur = NULL;
}
return (valueT) s->sy_value.X_add_number;
}
void
S_SET_VALUE (symbolS *s, valueT val)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
{
((struct local_symbol *) s)->lsy_value = val;
return;
}
#endif
s->sy_value.X_op = O_constant;
s->sy_value.X_add_number = (offsetT) val;
s->sy_value.X_unsigned = 0;
}
void
copy_symbol_attributes (symbolS *dest, symbolS *src)
{
if (LOCAL_SYMBOL_CHECK (dest))
dest = local_symbol_convert ((struct local_symbol *) dest);
if (LOCAL_SYMBOL_CHECK (src))
src = local_symbol_convert ((struct local_symbol *) src);
#ifdef BFD_ASSEMBLER
#define COPIED_SYMFLAGS (BSF_FUNCTION | BSF_OBJECT)
dest->bsym->flags |= src->bsym->flags & COPIED_SYMFLAGS;
#endif
#ifdef OBJ_COPY_SYMBOL_ATTRIBUTES
OBJ_COPY_SYMBOL_ATTRIBUTES (dest, src);
#endif
}
#ifdef BFD_ASSEMBLER
int
S_IS_FUNCTION (symbolS *s)
{
flagword flags;
if (LOCAL_SYMBOL_CHECK (s))
return 0;
flags = s->bsym->flags;
return (flags & BSF_FUNCTION) != 0;
}
int
S_IS_EXTERNAL (symbolS *s)
{
flagword flags;
if (LOCAL_SYMBOL_CHECK (s))
return 0;
flags = s->bsym->flags;
if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL))
abort ();
return (flags & BSF_GLOBAL) != 0;
}
int
S_IS_WEAK (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
return (s->bsym->flags & BSF_WEAK) != 0;
}
int
S_IS_COMMON (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
return bfd_is_com_section (s->bsym->section);
}
int
S_IS_DEFINED (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return ((struct local_symbol *) s)->lsy_section != undefined_section;
return s->bsym->section != undefined_section;
}
#ifndef EXTERN_FORCE_RELOC
#define EXTERN_FORCE_RELOC IS_ELF
#endif
int
S_FORCE_RELOC (symbolS *s, int strict)
{
if (LOCAL_SYMBOL_CHECK (s))
return ((struct local_symbol *) s)->lsy_section == undefined_section;
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 (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
if (s->bsym->flags & BSF_DEBUGGING)
return 1;
return 0;
}
int
S_IS_LOCAL (symbolS *s)
{
flagword flags;
const char *name;
if (LOCAL_SYMBOL_CHECK (s))
return 1;
flags = s->bsym->flags;
if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL))
abort ();
if (bfd_get_section (s->bsym) == reg_section)
return 1;
if (flag_strip_local_absolute
&& (flags & (BSF_GLOBAL | BSF_FILE)) == 0
&& bfd_get_section (s->bsym) == absolute_section)
return 1;
name = S_GET_NAME (s);
return (name != NULL
&& ! S_IS_DEBUG (s)
&& (strchr (name, DOLLAR_LABEL_CHAR)
|| strchr (name, LOCAL_LABEL_CHAR)
|| (! flag_keep_locals
&& (bfd_is_local_label (stdoutput, s->bsym)
|| (flag_mri
&& name[0] == '?'
&& name[1] == '?')))));
}
int
S_IS_EXTERN (symbolS *s)
{
return S_IS_EXTERNAL (s);
}
int
S_IS_STABD (symbolS *s)
{
return S_GET_NAME (s) == 0;
}
const char *
S_GET_NAME (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return ((struct local_symbol *) s)->lsy_name;
return s->bsym->name;
}
segT
S_GET_SEGMENT (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return ((struct local_symbol *) s)->lsy_section;
return s->bsym->section;
}
void
S_SET_SEGMENT (symbolS *s, segT seg)
{
if (LOCAL_SYMBOL_CHECK (s))
{
if (seg == reg_section)
s = local_symbol_convert ((struct local_symbol *) s);
else
{
((struct local_symbol *) s)->lsy_section = seg;
return;
}
}
if (s->bsym->flags & BSF_SECTION_SYM)
{
if (s->bsym->section != seg)
abort ();
}
else
s->bsym->section = seg;
}
void
S_SET_EXTERNAL (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
if ((s->bsym->flags & BSF_WEAK) != 0)
{
return;
}
if (s->bsym->flags & BSF_SECTION_SYM)
{
char * file;
unsigned int line;
as_where (& file, & line);
as_warn_where (file, line,
_("section symbols are already global"));
return;
}
s->bsym->flags |= BSF_GLOBAL;
s->bsym->flags &= ~(BSF_LOCAL | BSF_WEAK);
}
void
S_CLEAR_EXTERNAL (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
if ((s->bsym->flags & BSF_WEAK) != 0)
{
return;
}
s->bsym->flags |= BSF_LOCAL;
s->bsym->flags &= ~(BSF_GLOBAL | BSF_WEAK);
}
void
S_SET_WEAK (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
s->bsym->flags |= BSF_WEAK;
s->bsym->flags &= ~(BSF_GLOBAL | BSF_LOCAL);
}
void
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, char *name)
{
if (LOCAL_SYMBOL_CHECK (s))
{
((struct local_symbol *) s)->lsy_name = name;
return;
}
s->bsym->name = name;
}
#endif
#ifdef SYMBOLS_NEED_BACKPOINTERS
symbolS *
symbol_previous (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
abort ();
return s->sy_previous;
}
#endif
symbolS *
symbol_next (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
abort ();
return s->sy_next;
}
expressionS *
symbol_get_value_expression (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
return &s->sy_value;
}
void
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;
}
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);
}
void
symbol_set_frag (symbolS *s, fragS *f)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
{
local_symbol_set_frag ((struct local_symbol *) s, f);
return;
}
#endif
s->sy_frag = f;
}
fragS *
symbol_get_frag (symbolS *s)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
return local_symbol_get_frag ((struct local_symbol *) s);
#endif
return s->sy_frag;
}
void
symbol_mark_used (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
s->sy_used = 1;
}
void
symbol_clear_used (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
s->sy_used = 0;
}
int
symbol_used_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 1;
return s->sy_used;
}
void
symbol_mark_used_in_reloc (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
s->sy_used_in_reloc = 1;
}
void
symbol_clear_used_in_reloc (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
s->sy_used_in_reloc = 0;
}
int
symbol_used_in_reloc_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
return s->sy_used_in_reloc;
}
void
symbol_mark_mri_common (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
s->sy_mri_common = 1;
}
void
symbol_clear_mri_common (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
s->sy_mri_common = 0;
}
int
symbol_mri_common_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
return s->sy_mri_common;
}
void
symbol_mark_written (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
s->written = 1;
}
void
symbol_clear_written (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return;
s->written = 0;
}
int
symbol_written_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
return s->written;
}
void
symbol_mark_resolved (symbolS *s)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
{
local_symbol_mark_resolved ((struct local_symbol *) s);
return;
}
#endif
s->sy_resolved = 1;
}
int
symbol_resolved_p (symbolS *s)
{
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (s))
return local_symbol_resolved_p ((struct local_symbol *) s);
#endif
return s->sy_resolved;
}
int
symbol_section_p (symbolS *s ATTRIBUTE_UNUSED)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
#ifdef BFD_ASSEMBLER
return (s->bsym->flags & BSF_SECTION_SYM) != 0;
#else
return 0;
#endif
}
int
symbol_equated_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
return s->sy_value.X_op == O_symbol;
}
int
symbol_equated_reloc_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 0;
return (s->sy_value.X_op == O_symbol
&& ((s->sy_resolved && s->sy_value.X_op_symbol != NULL)
|| ! S_IS_DEFINED (s)
|| S_IS_COMMON (s)));
}
int
symbol_constant_p (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
return 1;
return s->sy_value.X_op == O_constant;
}
#ifdef BFD_ASSEMBLER
asymbol *
symbol_get_bfdsym (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
return s->bsym;
}
void
symbol_set_bfdsym (symbolS *s, asymbol *bsym)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
if ((s->bsym->flags & BSF_SECTION_SYM) == 0)
s->bsym = bsym;
}
#endif
#ifdef OBJ_SYMFIELD_TYPE
OBJ_SYMFIELD_TYPE *
symbol_get_obj (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
return &s->sy_obj;
}
void
symbol_set_obj (symbolS *s, OBJ_SYMFIELD_TYPE *o)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
s->sy_obj = *o;
}
#endif
#ifdef TC_SYMFIELD_TYPE
TC_SYMFIELD_TYPE *
symbol_get_tc (symbolS *s)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
return &s->sy_tc;
}
void
symbol_set_tc (symbolS *s, TC_SYMFIELD_TYPE *o)
{
if (LOCAL_SYMBOL_CHECK (s))
s = local_symbol_convert ((struct local_symbol *) s);
s->sy_tc = *o;
}
#endif
void
symbol_begin (void)
{
symbol_lastP = NULL;
symbol_rootP = NULL;
sy_hash = hash_new ();
#ifdef BFD_ASSEMBLER
local_hash = hash_new ();
#endif
memset ((char *) (&abs_symbol), '\0', sizeof (abs_symbol));
#ifdef BFD_ASSEMBLER
#if defined (EMIT_SECTION_SYMBOLS) || !defined (RELOC_REQUIRES_SYMBOL)
abs_symbol.bsym = bfd_abs_section.symbol;
#endif
#else
S_SET_SEGMENT (&abs_symbol, absolute_section);
#endif
abs_symbol.sy_value.X_op = O_constant;
abs_symbol.sy_frag = &zero_address_frag;
if (LOCAL_LABELS_FB)
fb_label_init ();
}
int indent_level;
int max_indent_level = 8;
#if 0
static void
indent (void)
{
printf ("%*s", indent_level * 4, "");
}
#endif
void
print_symbol_value_1 (FILE *file, symbolS *sym)
{
const char *name = S_GET_NAME (sym);
if (!name || !name[0])
name = "(unnamed)";
fprintf (file, "sym %lx %s", (unsigned long) sym, name);
if (LOCAL_SYMBOL_CHECK (sym))
{
#ifdef BFD_ASSEMBLER
struct local_symbol *locsym = (struct local_symbol *) sym;
if (local_symbol_get_frag (locsym) != &zero_address_frag
&& local_symbol_get_frag (locsym) != NULL)
fprintf (file, " frag %lx", (long) local_symbol_get_frag (locsym));
if (local_symbol_resolved_p (locsym))
fprintf (file, " resolved");
fprintf (file, " local");
#endif
}
else
{
if (sym->sy_frag != &zero_address_frag)
fprintf (file, " frag %lx", (long) sym->sy_frag);
if (sym->written)
fprintf (file, " written");
if (sym->sy_resolved)
fprintf (file, " resolved");
else if (sym->sy_resolving)
fprintf (file, " resolving");
if (sym->sy_used_in_reloc)
fprintf (file, " used-in-reloc");
if (sym->sy_used)
fprintf (file, " used");
if (S_IS_LOCAL (sym))
fprintf (file, " local");
if (S_IS_EXTERN (sym))
fprintf (file, " extern");
if (S_IS_DEBUG (sym))
fprintf (file, " debug");
if (S_IS_DEFINED (sym))
fprintf (file, " defined");
}
fprintf (file, " %s", segment_name (S_GET_SEGMENT (sym)));
if (symbol_resolved_p (sym))
{
segT s = S_GET_SEGMENT (sym);
if (s != undefined_section
&& s != expr_section)
fprintf (file, " %lx", (long) S_GET_VALUE (sym));
}
else if (indent_level < max_indent_level
&& S_GET_SEGMENT (sym) != undefined_section)
{
indent_level++;
fprintf (file, "\n%*s<", indent_level * 4, "");
#ifdef BFD_ASSEMBLER
if (LOCAL_SYMBOL_CHECK (sym))
fprintf (file, "constant %lx",
(long) ((struct local_symbol *) sym)->lsy_value);
else
#endif
print_expr_1 (file, &sym->sy_value);
fprintf (file, ">");
indent_level--;
}
fflush (file);
}
void
print_symbol_value (symbolS *sym)
{
indent_level = 0;
print_symbol_value_1 (stderr, sym);
fprintf (stderr, "\n");
}
static void
print_binary (FILE *file, const char *name, expressionS *exp)
{
indent_level++;
fprintf (file, "%s\n%*s<", name, indent_level * 4, "");
print_symbol_value_1 (file, exp->X_add_symbol);
fprintf (file, ">\n%*s<", indent_level * 4, "");
print_symbol_value_1 (file, exp->X_op_symbol);
fprintf (file, ">");
indent_level--;
}
void
print_expr_1 (FILE *file, expressionS *exp)
{
fprintf (file, "expr %lx ", (long) exp);
switch (exp->X_op)
{
case O_illegal:
fprintf (file, "illegal");
break;
case O_absent:
fprintf (file, "absent");
break;
case O_constant:
fprintf (file, "constant %lx", (long) exp->X_add_number);
break;
case O_symbol:
indent_level++;
fprintf (file, "symbol\n%*s<", indent_level * 4, "");
print_symbol_value_1 (file, exp->X_add_symbol);
fprintf (file, ">");
maybe_print_addnum:
if (exp->X_add_number)
fprintf (file, "\n%*s%lx", indent_level * 4, "",
(long) exp->X_add_number);
indent_level--;
break;
case O_register:
fprintf (file, "register #%d", (int) exp->X_add_number);
break;
case O_big:
fprintf (file, "big");
break;
case O_uminus:
fprintf (file, "uminus -<");
indent_level++;
print_symbol_value_1 (file, exp->X_add_symbol);
fprintf (file, ">");
goto maybe_print_addnum;
case O_bit_not:
fprintf (file, "bit_not");
break;
case O_multiply:
print_binary (file, "multiply", exp);
break;
case O_divide:
print_binary (file, "divide", exp);
break;
case O_modulus:
print_binary (file, "modulus", exp);
break;
case O_left_shift:
print_binary (file, "lshift", exp);
break;
case O_right_shift:
print_binary (file, "rshift", exp);
break;
case O_bit_inclusive_or:
print_binary (file, "bit_ior", exp);
break;
case O_bit_exclusive_or:
print_binary (file, "bit_xor", exp);
break;
case O_bit_and:
print_binary (file, "bit_and", exp);
break;
case O_eq:
print_binary (file, "eq", exp);
break;
case O_ne:
print_binary (file, "ne", exp);
break;
case O_lt:
print_binary (file, "lt", exp);
break;
case O_le:
print_binary (file, "le", exp);
break;
case O_ge:
print_binary (file, "ge", exp);
break;
case O_gt:
print_binary (file, "gt", exp);
break;
case O_logical_and:
print_binary (file, "logical_and", exp);
break;
case O_logical_or:
print_binary (file, "logical_or", exp);
break;
case O_add:
indent_level++;
fprintf (file, "add\n%*s<", indent_level * 4, "");
print_symbol_value_1 (file, exp->X_add_symbol);
fprintf (file, ">\n%*s<", indent_level * 4, "");
print_symbol_value_1 (file, exp->X_op_symbol);
fprintf (file, ">");
goto maybe_print_addnum;
case O_subtract:
indent_level++;
fprintf (file, "subtract\n%*s<", indent_level * 4, "");
print_symbol_value_1 (file, exp->X_add_symbol);
fprintf (file, ">\n%*s<", indent_level * 4, "");
print_symbol_value_1 (file, exp->X_op_symbol);
fprintf (file, ">");
goto maybe_print_addnum;
default:
fprintf (file, "{unknown opcode %d}", (int) exp->X_op);
break;
}
fflush (stdout);
}
void
print_expr (expressionS *exp)
{
print_expr_1 (stderr, exp);
fprintf (stderr, "\n");
}
void
symbol_print_statistics (FILE *file)
{
hash_print_statistics (file, "symbol table", sy_hash);
#ifdef BFD_ASSEMBLER
hash_print_statistics (file, "mini local symbol table", local_hash);
fprintf (file, "%lu mini local symbols created, %lu converted\n",
local_symbol_count, local_symbol_conversion_count);
#endif
}