/* b.out object file format
- Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
+ Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 1996
+ Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
the GNU General Public License for more details.
- 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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. */
#include "as.h"
#include "obstack.h"
-#include "aout/stab_gnu.h"
const short /* in: segT out: N_TYPE bits */
seg_N_TYPE[] =
{
N_DATA,
N_BSS,
N_UNDF, /* unknown */
- N_UNDF, /* absent */
- N_UNDF, /* pass1 */
N_UNDF, /* error */
- N_UNDF, /* bignum/flonum */
- N_UNDF, /* difference */
+ N_UNDF, /* expression */
+ N_UNDF, /* debug */
+ N_UNDF, /* ntv */
+ N_UNDF, /* ptv */
N_REGISTER, /* register */
};
SEG_GOOF,
};
-#if __STDC__ == 1
-static void obj_bout_stab (int what);
-static void obj_bout_line (void);
-static void obj_bout_desc (void);
-#else /* not __STDC__ */
-static void obj_bout_desc ();
-static void obj_bout_stab ();
-static void obj_bout_line ();
-#endif /* not __STDC__ */
+static void obj_bout_line PARAMS ((int));
const pseudo_typeS obj_pseudo_table[] =
{
-/* stabs (aka a.out aka b.out directives for debug symbols) */
- {"desc", obj_bout_desc, 0}, /* def */
{"line", obj_bout_line, 0}, /* source code line number */
- {"stabd", obj_bout_stab, 'd'},/* stabs */
- {"stabn", obj_bout_stab, 'n'},/* stabs */
- {"stabs", obj_bout_stab, 's'},/* stabs */
/* coff debugging directives. Currently ignored silently */
{"def", s_ignore, 0},
{
for (; fixP; fixP = fixP->fx_next)
{
- if (fixP->fx_addsy != NULL
+ if (fixP->fx_done == 0
|| fixP->fx_r_type != NO_RELOC)
{
+ symbolS *sym;
+
+ sym = fixP->fx_addsy;
+ while (sym->sy_value.X_op == O_symbol
+ && (! S_IS_DEFINED (sym) || S_IS_COMMON (sym)))
+ sym = sym->sy_value.X_add_symbol;
+ fixP->fx_addsy = sym;
+
tc_bout_fix_to_chars (*where, fixP, segment_address_in_file);
*where += sizeof (struct relocation_info);
} /* if there's a symbol */
{
S_SET_OTHER (symbolP, 0);
S_SET_DESC (symbolP, 0);
- return;
-} /* obj_symbol_new_hook() */
+}
static void
-obj_bout_line ()
+obj_bout_line (ignore)
+ int ignore;
{
/* Assume delimiter is part of expression. */
/* BSD4.2 as fails with delightful bug, so we */
demand_empty_rest_of_line ();
} /* obj_bout_line() */
-/*
- * stab()
- *
- * Handle .stabX directives, which used to be open-coded.
- * So much creeping featurism overloaded the semantics that we decided
- * to put all .stabX thinking in one place. Here.
- *
- * We try to make any .stabX directive legal. Other people's AS will often
- * do assembly-time consistency checks: eg assigning meaning to n_type bits
- * and "protecting" you from setting them to certain values. (They also zero
- * certain bits before emitting symbols. Tut tut.)
- *
- * If an expression is not absolute we either gripe or use the relocation
- * information. Other people's assemblers silently forget information they
- * don't need and invent information they need that you didn't supply.
- *
- * .stabX directives always make a symbol table entry. It may be junk if
- * the rest of your .stabX directive is malformed.
- */
-static void
-obj_bout_stab (what)
- int what;
-{
- register symbolS *symbolP = 0;
- register char *string;
- int saved_type = 0;
- int length;
- int goof; /* TRUE if we have aborted. */
- long longint;
-
- /*
- * Enter with input_line_pointer pointing past .stabX and any following
- * whitespace.
- */
- goof = 0; /* JF who forgot this?? */
- if (what == 's')
- {
- string = demand_copy_C_string (&length);
- SKIP_WHITESPACE ();
- if (*input_line_pointer == ',')
- input_line_pointer++;
- else
- {
- as_bad ("I need a comma after symbol's name");
- goof = 1;
- }
- }
- else
- string = "";
-
- /*
- * Input_line_pointer->after ','. String->symbol name.
- */
- if (!goof)
- {
- symbolP = symbol_new (string,
- SEG_UNKNOWN,
- 0,
- (struct frag *) 0);
- switch (what)
- {
- case 'd':
- S_SET_NAME (symbolP, NULL); /* .stabd feature. */
- S_SET_VALUE (symbolP, obstack_next_free (&frags) -
- frag_now->fr_literal);
- symbolP->sy_frag = frag_now;
- break;
-
- case 'n':
- symbolP->sy_frag = &zero_address_frag;
- break;
-
- case 's':
- symbolP->sy_frag = &zero_address_frag;
- break;
-
- default:
- BAD_CASE (what);
- break;
- }
- if (get_absolute_expression_and_terminator (&longint) == ',')
- symbolP->sy_symbol.n_type = saved_type = longint;
- else
- {
- as_bad ("I want a comma after the n_type expression");
- goof = 1;
- input_line_pointer--; /* Backup over a non-',' char. */
- }
- }
- if (!goof)
- {
- if (get_absolute_expression_and_terminator (&longint) == ',')
- S_SET_OTHER (symbolP, longint);
- else
- {
- as_bad ("I want a comma after the n_other expression");
- goof = 1;
- input_line_pointer--; /* Backup over a non-',' char. */
- }
- }
- if (!goof)
- {
- S_SET_DESC (symbolP, get_absolute_expression ());
- if (what == 's' || what == 'n')
- {
- if (*input_line_pointer != ',')
- {
- as_bad ("I want a comma after the n_desc expression");
- goof = 1;
- }
- else
- {
- input_line_pointer++;
- }
- }
- }
- if ((!goof) && (what == 's' || what == 'n'))
- {
- pseudo_set (symbolP);
- symbolP->sy_symbol.n_type = saved_type;
- }
-#ifndef NO_LISTING
- {
- extern int listing;
-
- if (listing && !goof)
- {
- if (symbolP->sy_symbol.n_type == N_SLINE)
- {
-
- listing_source_line (symbolP->sy_symbol.n_desc);
- }
- else if (symbolP->sy_symbol.n_type == N_SO
- || symbolP->sy_symbol.n_type == N_SOL)
- {
- listing_source_file (string);
- }
- }
- }
-
-#endif
-
- if (goof)
- ignore_rest_of_line ();
- else
- demand_empty_rest_of_line ();
-} /* obj_bout_stab() */
-
-static void
-obj_bout_desc ()
-{
- register char *name;
- register char c;
- register char *p;
- register symbolS *symbolP;
- register int temp;
-
- /*
- * Frob invented at RMS' request. Set the n_desc of a symbol.
- */
- name = input_line_pointer;
- c = get_symbol_end ();
- p = input_line_pointer;
- *p = c;
- SKIP_WHITESPACE ();
- if (*input_line_pointer != ',')
- {
- *p = 0;
- as_bad ("Expected comma after name \"%s\"", name);
- *p = c;
- ignore_rest_of_line ();
- }
- else
- {
- input_line_pointer++;
- temp = get_absolute_expression ();
- *p = 0;
- symbolP = symbol_find_or_make (name);
- *p = c;
- S_SET_DESC (symbolP, temp);
- }
- demand_empty_rest_of_line ();
-} /* obj_bout_desc() */
-
void
obj_read_begin_hook ()
{
- return;
-} /* obj_read_begin_hook() */
+}
void
obj_crawl_symbol_chain (headers)
symbolPP = &symbol_rootP; /*->last symbol chain link. */
while ((symbolP = *symbolPP) != NULL)
{
- if (flagseen['R'] && (S_GET_SEGMENT (symbolP) == SEG_DATA))
+ if (flag_readonly_data_in_text && (S_GET_SEGMENT (symbolP) == SEG_DATA))
{
S_SET_SEGMENT (symbolP, SEG_TEXT);
} /* if pusing data into text */
- resolve_symbol_value (symbolP);
+ resolve_symbol_value (symbolP, 1);
+
+ /* Skip symbols which were equated to undefined or common
+ symbols. */
+ if (symbolP->sy_value.X_op == O_symbol
+ && (! S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)))
+ {
+ *symbolPP = symbol_next (symbolP);
+ continue;
+ }
/* OK, here is how we decide which symbols go out into the
- brave new symtab. Symbols that do are:
+ brave new symtab. Symbols that do are:
- * symbols with no name (stabd's?)
- * symbols with debug info in their N_TYPE
+ * symbols with no name (stabd's?)
+ * symbols with debug info in their N_TYPE
- Symbols that don't are:
- * symbols that are registers
- * symbols with \1 as their 3rd character (numeric labels)
- * "local labels" as defined by S_LOCAL_NAME(name)
- if the -L switch was passed to gas.
+ Symbols that don't are:
+ * symbols that are registers
+ * symbols with \1 as their 3rd character (numeric labels)
+ * "local labels" as defined by S_LOCAL_NAME(name)
+ if the -L switch was passed to gas.
- All other symbols are output. We complain if a deleted
- symbol was marked external. */
+ All other symbols are output. We complain if a deleted
+ symbol was marked external. */
if (1
|| !S_IS_DEFINED (symbolP)
|| S_IS_EXTERNAL (symbolP)
#endif /* TC_I960 */
- || (S_GET_NAME (symbolP)[0] != '\001' && (flagseen['L'] || !S_LOCAL_NAME (symbolP)))))
+ || (S_GET_NAME (symbolP)[0] != '\001' && (flag_keep_locals || !S_LOCAL_NAME (symbolP)))))
{
symbolP->sy_number = symbol_number++;
{
if (S_IS_EXTERNAL (symbolP) || !S_IS_DEFINED (symbolP))
{
- as_bad ("Local symbol %s never defined", S_GET_NAME (symbolP));
+ as_bad (_("Local symbol %s never defined"), S_GET_NAME (symbolP));
} /* oops. */
/* Unhook it from the chain */
} /* for each symbol */
H_SET_SYMBOL_TABLE_SIZE (headers, symbol_number);
-
- return;
-} /* obj_crawl_symbol_chain() */
+}
/*
* Find strings by crawling along symbol table chain.
if (S_GET_NAME (symbolP))
append (where, S_GET_NAME (symbolP), (unsigned long) (strlen (S_GET_NAME (symbolP)) + 1));
} /* walk symbol chain */
-
- return;
-} /* obj_emit_strings() */
+}
/* end of obj-bout.c */
projects / deliverable / binutils-gdb.git / blobdiff