static void
obj_coff_val (int ignore ATTRIBUTE_UNUSED)
{
if (def_symbol_in_progress == NULL)
{
as_warn (_(".val pseudo-op used outside of .def/.endef ignored."));
demand_empty_rest_of_line ();
return;
}
if (is_name_beginner (*input_line_pointer))
{
char *symbol_name = input_line_pointer;
char name_end = get_symbol_end ();
#ifdef tc_canonicalize_symbol_name
symbol_name = tc_canonicalize_symbol_name (symbol_name);
#endif
if (streq (symbol_name, "."))
{
/* If the .val is != from the .def (e.g. statics). */
symbol_set_frag (def_symbol_in_progress, frag_now);
S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ());
}
else if (! streq (S_GET_NAME (def_symbol_in_progress), symbol_name))
{
expressionS exp;
exp.X_op = O_symbol;
exp.X_add_symbol = symbol_find_or_make (symbol_name);
exp.X_op_symbol = NULL;
exp.X_add_number = 0;
symbol_set_value_expression (def_symbol_in_progress, &exp);
/* If the segment is undefined when the forward reference is
resolved, then copy the segment id from the forward
symbol. */
SF_SET_GET_SEGMENT (def_symbol_in_progress);
/* FIXME: gcc can generate address expressions here in
unusual cases (search for "obscure" in sdbout.c). We
just ignore the offset here, thus generating incorrect
debugging information. We ignore the rest of the line
just below. */
}
/* Otherwise, it is the name of a non debug symbol and its value
will be calculated later. */
*input_line_pointer = name_end;
}
else
{
S_SET_VALUE (def_symbol_in_progress, get_absolute_expression ());
}
demand_empty_rest_of_line ();
}
static symbolS *
obj_coff_common_parse (int ignore ATTRIBUTE_UNUSED, symbolS *symbolP, addressT size)
{
addressT align = 0;
if (*input_line_pointer == ',')
{
align = parse_align (0);
if (align == (addressT) -1)
return NULL;
}
S_SET_VALUE (symbolP, size);
S_SET_EXTERNAL (symbolP);
S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT;
/* There is no S_SET_ALIGN (symbolP, align) in COFF/PE.
Instead we must add a note to the .drectve section. */
if (align)
{
segT current_seg = now_seg;
subsegT current_subseg = now_subseg;
flagword oldflags;
asection *sec;
size_t pfxlen, numlen;
char *frag;
char numbuff[20];
sec = subseg_new (".drectve", 0);
oldflags = bfd_get_section_flags (stdoutput, sec);
if (oldflags == SEC_NO_FLAGS)
{
if (!bfd_set_section_flags (stdoutput, sec,
TC_COFF_SECTION_DEFAULT_ATTRIBUTES))
as_warn (_("error setting flags for \"%s\": %s"),
bfd_section_name (stdoutput, sec),
bfd_errmsg (bfd_get_error ()));
}
/* Emit a string. Note no NUL-termination. */
pfxlen = strlen (" -aligncomm:") + 2 + strlen (S_GET_NAME (symbolP)) + 1;
numlen = snprintf (numbuff, sizeof (numbuff), "%d", (int) align);
frag = frag_more (pfxlen + numlen);
(void) sprintf (frag, " -aligncomm:\"%s\",", S_GET_NAME (symbolP));
memcpy (frag + pfxlen, numbuff, numlen);
/* Restore original subseg. */
subseg_set (current_seg, current_subseg);
}
return symbolP;
}
void
dwarf2_move_insn (int delta)
{
struct line_subseg *lss;
struct line_entry *e;
valueT now;
if (delta == 0)
return;
lss = get_line_subseg (now_seg, now_subseg, FALSE);
if (!lss)
return;
now = frag_now_fix ();
while ((e = *lss->pmove_tail))
{
if (S_GET_VALUE (e->label) == now)
S_SET_VALUE (e->label, now + delta);
lss->pmove_tail = &e->next;
}
}
static void
obj_coff_def (int what ATTRIBUTE_UNUSED)
{
char name_end; /* Char after the end of name. */
char *symbol_name; /* Name of the debug symbol. */
char *symbol_name_copy; /* Temporary copy of the name. */
unsigned int symbol_name_length;
if (def_symbol_in_progress != NULL)
{
as_warn (_(".def pseudo-op used inside of .def/.endef: ignored."));
demand_empty_rest_of_line ();
return;
}
SKIP_WHITESPACES ();
symbol_name = input_line_pointer;
name_end = get_symbol_end ();
symbol_name_length = strlen (symbol_name);
symbol_name_copy = xmalloc (symbol_name_length + 1);
strcpy (symbol_name_copy, symbol_name);
#ifdef tc_canonicalize_symbol_name
symbol_name_copy = tc_canonicalize_symbol_name (symbol_name_copy);
#endif
/* Initialize the new symbol. */
def_symbol_in_progress = symbol_make (symbol_name_copy);
symbol_set_frag (def_symbol_in_progress, &zero_address_frag);
S_SET_VALUE (def_symbol_in_progress, 0);
if (S_IS_STRING (def_symbol_in_progress))
SF_SET_STRING (def_symbol_in_progress);
*input_line_pointer = name_end;
demand_empty_rest_of_line ();
}
void
coff_frob_symbol (symbolS *symp, int *punt)
{
static symbolS *last_tagP;
static stack *block_stack;
static symbolS *set_end;
symbolS *next_set_end = NULL;
if (symp == &abs_symbol)
{
*punt = 1;
return;
}
if (current_lineno_sym)
coff_add_linesym (NULL);
if (!block_stack)
block_stack = stack_init (512, sizeof (symbolS*));
#ifdef TE_PE
if (S_GET_STORAGE_CLASS (symp) == C_NT_WEAK
&& ! S_IS_WEAK (symp)
&& weak_is_altname (S_GET_NAME (symp)))
{
/* This is a weak alternate symbol. All processing of
PECOFFweak symbols is done here, through the alternate. */
symbolS *weakp = symbol_find_noref (weak_altname2name
(S_GET_NAME (symp)), 1);
assert (weakp);
assert (S_GET_NUMBER_AUXILIARY (weakp) == 1);
if (! S_IS_WEAK (weakp))
{
/* The symbol was turned from weak to strong. Discard altname. */
*punt = 1;
return;
}
else if (symbol_equated_p (weakp))
{
/* The weak symbol has an alternate specified; symp is unneeded. */
S_SET_STORAGE_CLASS (weakp, C_NT_WEAK);
SA_SET_SYM_TAGNDX (weakp,
symbol_get_value_expression (weakp)->X_add_symbol);
S_CLEAR_EXTERNAL (symp);
*punt = 1;
return;
}
else
{
/* The weak symbol has been assigned an alternate value.
Copy this value to symp, and set symp as weakp's alternate. */
if (S_GET_STORAGE_CLASS (weakp) != C_NT_WEAK)
{
S_SET_STORAGE_CLASS (symp, S_GET_STORAGE_CLASS (weakp));
S_SET_STORAGE_CLASS (weakp, C_NT_WEAK);
}
if (S_IS_DEFINED (weakp))
{
/* This is a defined weak symbol. Copy value information
from the weak symbol itself to the alternate symbol. */
symbol_set_value_expression (symp,
symbol_get_value_expression (weakp));
symbol_set_frag (symp, symbol_get_frag (weakp));
S_SET_SEGMENT (symp, S_GET_SEGMENT (weakp));
}
else
{
/* This is an undefined weak symbol.
Define the alternate symbol to zero. */
S_SET_VALUE (symp, 0);
S_SET_SEGMENT (symp, absolute_section);
}
S_SET_NAME (symp, weak_uniquify (S_GET_NAME (symp)));
S_SET_STORAGE_CLASS (symp, C_EXT);
S_SET_VALUE (weakp, 0);
S_SET_SEGMENT (weakp, undefined_section);
}
}
#else /* TE_PE */
if (S_IS_WEAK (symp))
S_SET_STORAGE_CLASS (symp, C_WEAKEXT);
#endif /* TE_PE */
if (!S_IS_DEFINED (symp)
&& !S_IS_WEAK (symp)
&& S_GET_STORAGE_CLASS (symp) != C_STAT)
S_SET_STORAGE_CLASS (symp, C_EXT);
if (!SF_GET_DEBUG (symp))
{
symbolS * real;
if (!SF_GET_LOCAL (symp)
&& !SF_GET_STATICS (symp)
&& S_GET_STORAGE_CLASS (symp) != C_LABEL
&& symbol_constant_p (symp)
&& (real = symbol_find_noref (S_GET_NAME (symp), 1))
&& S_GET_STORAGE_CLASS (real) == C_NULL
&& real != symp)
{
c_symbol_merge (symp, real);
*punt = 1;
return;
}
if (!S_IS_DEFINED (symp) && !SF_GET_LOCAL (symp))
{
assert (S_GET_VALUE (symp) == 0);
if (S_IS_WEAKREFD (symp))
*punt = 1;
else
S_SET_EXTERNAL (symp);
}
else if (S_GET_STORAGE_CLASS (symp) == C_NULL)
{
if (S_GET_SEGMENT (symp) == text_section
&& symp != seg_info (text_section)->sym)
S_SET_STORAGE_CLASS (symp, C_LABEL);
else
S_SET_STORAGE_CLASS (symp, C_STAT);
}
if (SF_GET_PROCESS (symp))
{
if (S_GET_STORAGE_CLASS (symp) == C_BLOCK)
{
if (streq (S_GET_NAME (symp), ".bb"))
stack_push (block_stack, (char *) &symp);
else
{
symbolS *begin;
begin = *(symbolS **) stack_pop (block_stack);
if (begin == 0)
as_warn (_("mismatched .eb"));
else
next_set_end = begin;
}
}
if (coff_last_function == 0 && SF_GET_FUNCTION (symp))
{
union internal_auxent *auxp;
coff_last_function = symp;
if (S_GET_NUMBER_AUXILIARY (symp) < 1)
S_SET_NUMBER_AUXILIARY (symp, 1);
auxp = SYM_AUXENT (symp);
memset (auxp->x_sym.x_fcnary.x_ary.x_dimen, 0,
sizeof (auxp->x_sym.x_fcnary.x_ary.x_dimen));
}
if (S_GET_STORAGE_CLASS (symp) == C_EFCN)
{
if (coff_last_function == 0)
as_fatal (_("C_EFCN symbol for %s out of scope"),
S_GET_NAME (symp));
SA_SET_SYM_FSIZE (coff_last_function,
(long) (S_GET_VALUE (symp)
- S_GET_VALUE (coff_last_function)));
next_set_end = coff_last_function;
coff_last_function = 0;
}
}
if (S_IS_EXTERNAL (symp))
S_SET_STORAGE_CLASS (symp, C_EXT);
else if (SF_GET_LOCAL (symp))
*punt = 1;
if (SF_GET_FUNCTION (symp))
symbol_get_bfdsym (symp)->flags |= BSF_FUNCTION;
}
/* Double check weak symbols. */
if (S_IS_WEAK (symp) && S_IS_COMMON (symp))
as_bad (_("Symbol `%s' can not be both weak and common"),
S_GET_NAME (symp));
if (SF_GET_TAG (symp))
last_tagP = symp;
else if (S_GET_STORAGE_CLASS (symp) == C_EOS)
next_set_end = last_tagP;
#ifdef OBJ_XCOFF
/* This is pretty horrible, but we have to set *punt correctly in
order to call SA_SET_SYM_ENDNDX correctly. */
if (! symbol_used_in_reloc_p (symp)
&& ((symbol_get_bfdsym (symp)->flags & BSF_SECTION_SYM) != 0
|| (! (S_IS_EXTERNAL (symp) || S_IS_WEAK (symp))
&& ! symbol_get_tc (symp)->output
&& S_GET_STORAGE_CLASS (symp) != C_FILE)))
*punt = 1;
#endif
if (set_end != (symbolS *) NULL
&& ! *punt
&& ((symbol_get_bfdsym (symp)->flags & BSF_NOT_AT_END) != 0
|| (S_IS_DEFINED (symp)
&& ! S_IS_COMMON (symp)
&& (! S_IS_EXTERNAL (symp) || SF_GET_FUNCTION (symp)))))
{
SA_SET_SYM_ENDNDX (set_end, symp);
set_end = NULL;
}
if (next_set_end != NULL)
{
if (set_end != NULL)
as_warn ("Warning: internal error: forgetting to set endndx of %s",
S_GET_NAME (set_end));
set_end = next_set_end;
}
#ifndef OBJ_XCOFF
if (! *punt
&& S_GET_STORAGE_CLASS (symp) == C_FCN
&& streq (S_GET_NAME (symp), ".bf"))
{
if (coff_last_bf != NULL)
SA_SET_SYM_ENDNDX (coff_last_bf, symp);
coff_last_bf = symp;
}
#endif
if (coffsymbol (symbol_get_bfdsym (symp))->lineno)
{
int i;
struct line_no *lptr;
alent *l;
lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno;
for (i = 0; lptr; lptr = lptr->next)
i++;
lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno;
/* We need i entries for line numbers, plus 1 for the first
entry which BFD will override, plus 1 for the last zero
entry (a marker for BFD). */
l = xmalloc ((i + 2) * sizeof (* l));
coffsymbol (symbol_get_bfdsym (symp))->lineno = l;
l[i + 1].line_number = 0;
l[i + 1].u.sym = NULL;
for (; i > 0; i--)
{
if (lptr->frag)
lptr->l.u.offset += lptr->frag->fr_address / OCTETS_PER_BYTE;
l[i] = lptr->l;
lptr = lptr->next;
}
}
}
