/* coff object file format
- Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994
+ Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 1996
Free Software Foundation, Inc.
This file is part of GAS.
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. */
+ 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 "subsegs.h"
#include "obstack.h"
+#include "subsegs.h"
+#include "libiberty.h"
+
+/* I think this is probably always correct. */
+#ifndef KEEP_RELOC_INFO
+#define KEEP_RELOC_INFO
+#endif
+
+
+/* structure used to keep the filenames which
+ are too long around so that we can stick them
+ into the string table */
+struct filename_list
+{
+ char *filename;
+ struct filename_list *next;
+};
+
+static struct filename_list *filename_list_head;
+static struct filename_list *filename_list_tail;
const char *s_get_name PARAMS ((symbolS * s));
-static symbolS *tag_find_or_make PARAMS ((char *name));
-static symbolS *tag_find PARAMS ((char *name));
-
-static void obj_coff_def PARAMS ((int what));
-static void obj_coff_dim PARAMS ((int));
-static void obj_coff_endef PARAMS ((int));
-static void obj_coff_line PARAMS ((int));
-static void obj_coff_ln PARAMS ((int));
-static void obj_coff_scl PARAMS ((int));
-static void obj_coff_size PARAMS ((int));
-static void obj_coff_tag PARAMS ((int));
-static void obj_coff_type PARAMS ((int));
-static void obj_coff_val PARAMS ((int));
-static void tag_init PARAMS ((void));
-static void tag_insert PARAMS ((const char *name, symbolS * symbolP));
+static symbolS *def_symbol_in_progress;
-static void SA_SET_SYM_TAGNDX PARAMS ((symbolS *, symbolS *));
+\f
+/* stack stuff */
+typedef struct
+ {
+ unsigned long chunk_size;
+ unsigned long element_size;
+ unsigned long size;
+ char *data;
+ unsigned long pointer;
+ }
+stack;
+
+static stack *
+stack_init (chunk_size, element_size)
+ unsigned long chunk_size;
+ unsigned long element_size;
+{
+ stack *st;
+
+ st = (stack *) malloc (sizeof (stack));
+ if (!st)
+ return 0;
+ st->data = malloc (chunk_size);
+ if (!st->data)
+ {
+ free (st);
+ return 0;
+ }
+ st->pointer = 0;
+ st->size = chunk_size;
+ st->chunk_size = chunk_size;
+ st->element_size = element_size;
+ return st;
+}
+
+#if 0
+/* Not currently used. */
+static void
+stack_delete (st)
+ stack *st;
+{
+ free (st->data);
+ free (st);
+}
+#endif
+
+static char *
+stack_push (st, element)
+ stack *st;
+ char *element;
+{
+ if (st->pointer + st->element_size >= st->size)
+ {
+ st->size += st->chunk_size;
+ if ((st->data = xrealloc (st->data, st->size)) == (char *) 0)
+ return (char *) 0;
+ }
+ memcpy (st->data + st->pointer, element, st->element_size);
+ st->pointer += st->element_size;
+ return st->data + st->pointer;
+}
+
+static char *
+stack_pop (st)
+ stack *st;
+{
+ if (st->pointer < st->element_size)
+ {
+ st->pointer = 0;
+ return (char *) 0;
+ }
+ st->pointer -= st->element_size;
+ return st->data + st->pointer;
+}
+\f
+/*
+ * Maintain a list of the tagnames of the structres.
+ */
static struct hash_control *tag_hash;
-static symbolS *def_symbol_in_progress;
-const pseudo_typeS obj_pseudo_table[] =
+static void
+tag_init ()
{
-#ifndef IGNORE_DEBUG
- {"def", obj_coff_def, 0},
- {"dim", obj_coff_dim, 0},
- {"endef", obj_coff_endef, 0},
- {"line", obj_coff_line, 0},
- {"ln", obj_coff_ln, 0},
- {"appline", obj_coff_ln, 1},
- {"scl", obj_coff_scl, 0},
- {"size", obj_coff_size, 0},
- {"tag", obj_coff_tag, 0},
- {"type", obj_coff_type, 0},
- {"val", obj_coff_val, 0},
-#else
- {"def", s_ignore, 0},
- {"dim", s_ignore, 0},
- {"endef", s_ignore, 0},
- {"line", s_ignore, 0},
- {"ln", s_ignore, 0},
- {"scl", s_ignore, 0},
- {"size", s_ignore, 0},
- {"tag", s_ignore, 0},
- {"type", s_ignore, 0},
- {"val", s_ignore, 0},
-#endif /* ignore debug */
-
- { "section", obj_coff_section, 0 },
+ tag_hash = hash_new ();
+}
- {"ident", s_ignore, 0}, /* we don't yet handle this. */
- {"optim", s_ignore, 0}, /* For sun386i cc (?) */
- /* other stuff */
- {"ABORT", s_abort, 0},
+static void
+tag_insert (name, symbolP)
+ const char *name;
+ symbolS *symbolP;
+{
+ const char *error_string;
+
+ if ((error_string = hash_jam (tag_hash, name, (char *) symbolP)))
+ {
+ as_fatal ("Inserting \"%s\" into structure table failed: %s",
+ name, error_string);
+ }
+}
+
+static symbolS *
+tag_find (name)
+ char *name;
+{
+#ifdef STRIP_UNDERSCORE
+ if (*name == '_')
+ name++;
+#endif /* STRIP_UNDERSCORE */
+ return (symbolS *) hash_find (tag_hash, name);
+}
+
+static symbolS *
+tag_find_or_make (name)
+ char *name;
+{
+ symbolS *symbolP;
+
+ if ((symbolP = tag_find (name)) == NULL)
+ {
+ symbolP = symbol_new (name, undefined_section,
+ 0, &zero_address_frag);
+
+ tag_insert (S_GET_NAME (symbolP), symbolP);
+#ifdef BFD_ASSEMBLER
+ symbol_table_insert (symbolP);
+#endif
+ } /* not found */
+
+ return symbolP;
+}
- {NULL} /* end sentinel */
-}; /* obj_pseudo_table */
-struct line_no {
- struct line_no *next;
- fragS *frag;
- alent l;
-};
+
+#ifdef BFD_ASSEMBLER
+
+static void SA_SET_SYM_TAGNDX PARAMS ((symbolS *, symbolS *));
#define GET_FILENAME_STRING(X) \
((char*)(&((X)->sy_symbol.ost_auxent->x_file.x_n.x_offset))[1])
{
symbolS *symbolP;
- symbolP = symbol_new (filename, &bfd_abs_section, 0,
- &zero_address_frag);
+ symbolP = symbol_new (filename, bfd_abs_section_ptr, 0, &zero_address_frag);
S_SET_STORAGE_CLASS (symbolP, C_FILE);
S_SET_NUMBER_AUXILIARY (symbolP, 1);
/* Line number handling */
+struct line_no {
+ struct line_no *next;
+ fragS *frag;
+ alent l;
+};
+
int coff_line_base;
/* Symbol of last function, which we should hang line#s off of. */
S_SET_STORAGE_CLASS (symbolP, 0);
S_SET_NUMBER_AUXILIARY (symbolP, 0);
-#ifdef STRIP_UNDERSCORE
- /* Remove leading underscore at the beginning of the symbol.
- This is to be compatible with the standard librairies. */
- if (*S_GET_NAME (symbolP) == '_')
- {
- underscore = 1;
- S_SET_NAME (symbolP, S_GET_NAME (symbolP) + 1);
- }
-#endif /* STRIP_UNDERSCORE */
-
if (S_IS_STRING (symbolP))
SF_SET_STRING (symbolP);
if (!underscore && S_IS_LOCAL (symbolP))
}
\f
-/* stack stuff */
-stack *
-stack_init (chunk_size, element_size)
- unsigned long chunk_size;
- unsigned long element_size;
-{
- stack *st;
-
- st = (stack *) malloc (sizeof (stack));
- if (!st)
- return 0;
- st->data = malloc (chunk_size);
- if (!st->data)
- {
- free (st);
- return 0;
- }
- st->pointer = 0;
- st->size = chunk_size;
- st->chunk_size = chunk_size;
- st->element_size = element_size;
- return st;
-}
-
-void
-stack_delete (st)
- stack *st;
-{
- free (st->data);
- free (st);
-}
-
-char *
-stack_push (st, element)
- stack *st;
- char *element;
-{
- if (st->pointer + st->element_size >= st->size)
- {
- st->size += st->chunk_size;
- if ((st->data = xrealloc (st->data, st->size)) == (char *) 0)
- return (char *) 0;
- }
- memcpy (st->data + st->pointer, element, st->element_size);
- st->pointer += st->element_size;
- return st->data + st->pointer;
-}
-
-char *
-stack_pop (st)
- stack *st;
-{
- if (st->pointer < st->element_size)
- {
- st->pointer = 0;
- return (char *) 0;
- }
- st->pointer -= st->element_size;
- return st->data + st->pointer;
-}
-
-char *
-stack_top (st)
- stack *st;
-{
- return st->data + st->pointer - st->element_size;
-}
-
-
/*
* Handle .ln directives.
*/
static symbolS *current_lineno_sym;
static struct line_no *line_nos;
+/* @@ Blindly assume all .ln directives will be in the .text section... */
+int coff_n_line_nos;
static void
add_lineno (frag, offset, num)
new_line->l.line_number = num;
new_line->l.u.offset = offset;
line_nos = new_line;
+ coff_n_line_nos++;
}
void
{
if (line_nos)
{
- add_lineno (0, 0, 0);
coffsymbol (current_lineno_sym->bsym)->lineno = (alent *) line_nos;
+ coff_n_line_nos++;
line_nos = 0;
}
current_lineno_sym = sym;
unsigned int dim_index;
static void
-obj_coff_endef (ignored)
- int ignored;
+obj_coff_endef (ignore)
+ int ignore;
{
symbolS *symbolP;
/* DIM BUG FIX sac@cygnus.com */
}
static void
-obj_coff_dim (ignored)
- int ignored;
+obj_coff_dim (ignore)
+ int ignore;
{
int dim_index;
}
static void
-obj_coff_line (ignored)
- int ignored;
+obj_coff_line (ignore)
+ int ignore;
{
int this_base;
}
this_base = get_absolute_expression ();
- if (this_base > coff_line_base)
+ if (!strcmp (".bf", S_GET_NAME (def_symbol_in_progress)))
coff_line_base = this_base;
S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
SA_SET_SYM_LNNO (def_symbol_in_progress, coff_line_base);
demand_empty_rest_of_line ();
+
+#ifndef NO_LISTING
+ if (strcmp (".bf", S_GET_NAME (def_symbol_in_progress)) == 0)
+ {
+ extern int listing;
+
+ if (listing)
+ listing_source_line ((unsigned int) coff_line_base);
+ }
+#endif
}
static void
-obj_coff_size (ignored)
- int ignored;
+obj_coff_size (ignore)
+ int ignore;
{
if (def_symbol_in_progress == NULL)
{
}
static void
-obj_coff_scl (ignored)
- int ignored;
+obj_coff_scl (ignore)
+ int ignore;
{
if (def_symbol_in_progress == NULL)
{
}
static void
-obj_coff_tag (ignored)
- int ignored;
+obj_coff_tag (ignore)
+ int ignore;
{
char *symbol_name;
char name_end;
}
static void
-obj_coff_type (ignored)
- int ignored;
+obj_coff_type (ignore)
+ int ignore;
{
if (def_symbol_in_progress == NULL)
{
}
static void
-obj_coff_val (ignored)
- int ignored;
+obj_coff_val (ignore)
+ int ignore;
{
if (def_symbol_in_progress == NULL)
{
if (!strcmp (symbol_name, "."))
{
def_symbol_in_progress->sy_frag = frag_now;
- S_SET_VALUE (def_symbol_in_progress, obstack_next_free (&frags) - frag_now->fr_literal);
+ S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ());
/* If the .val is != from the .def (e.g. statics) */
}
else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name))
demand_empty_rest_of_line ();
}
-/*
- * Maintain a list of the tagnames of the structres.
- */
-
-static void
-tag_init ()
-{
- tag_hash = hash_new ();
-}
-
-static void
-tag_insert (name, symbolP)
- const char *name;
- symbolS *symbolP;
-{
- const char *error_string;
-
- if ((error_string = hash_jam (tag_hash, name, (char *) symbolP)))
- {
- as_fatal ("Inserting \"%s\" into structure table failed: %s",
- name, error_string);
- }
-}
-
-static symbolS *
-tag_find_or_make (name)
- char *name;
-{
- symbolS *symbolP;
-
- if ((symbolP = tag_find (name)) == NULL)
- {
- symbolP = symbol_new (name, undefined_section,
- 0, &zero_address_frag);
-
- tag_insert (S_GET_NAME (symbolP), symbolP);
- symbol_table_insert (symbolP);
- } /* not found */
-
- return symbolP;
-}
-
-static symbolS *
-tag_find (name)
- char *name;
-{
-#ifdef STRIP_UNDERSCORE
- if (*name == '_')
- name++;
-#endif /* STRIP_UNDERSCORE */
- return (symbolS *) hash_find (tag_hash, name);
-}
-
-void
-obj_read_begin_hook ()
+void
+obj_read_begin_hook ()
{
/* These had better be the same. Usually 18 bytes. */
#ifndef BFD_HEADERS
symbolS *coff_last_function;
+static symbolS *coff_last_bf;
void
coff_frob_symbol (symp, punt)
static symbolS *last_tagP;
static stack *block_stack;
static symbolS *set_end;
+ symbolS *next_set_end = NULL;
if (symp == &abs_symbol)
{
{
symbolS *real;
if (!SF_GET_LOCAL (symp)
+ && !SF_GET_STATICS (symp)
&& (real = symbol_find_base (S_GET_NAME (symp), DO_NOT_STRIP))
&& real != symp)
{
}
else if (S_GET_STORAGE_CLASS (symp) == C_NULL)
{
- if (S_GET_SEGMENT (symp) == text_section)
+ 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 (begin == 0)
as_warn ("mismatched .eb");
else
- set_end = begin;
+ next_set_end = begin;
}
}
if (coff_last_function == 0 && SF_GET_FUNCTION (symp))
SA_SET_SYM_FSIZE (coff_last_function,
(long) (S_GET_VALUE (symp)
- S_GET_VALUE (coff_last_function)));
- set_end = coff_last_function;
+ next_set_end = coff_last_function;
coff_last_function = 0;
}
}
else if (SF_GET_TAG (symp))
last_tagP = symp;
else if (S_GET_STORAGE_CLASS (symp) == C_EOS)
- set_end = last_tagP;
+ next_set_end = last_tagP;
else if (S_GET_STORAGE_CLASS (symp) == C_FILE)
{
if (S_GET_VALUE (symp))
S_SET_STORAGE_CLASS (symp, C_EXT);
else if (SF_GET_LOCAL (symp))
*punt = 1;
+
+ if (SF_GET_FUNCTION (symp))
+ symp->bsym->flags |= BSF_FUNCTION;
+
/* more ... */
}
+#ifdef OBJ_XCOFF
+ /* This is pretty horrible, but we have to set *punt correctly in
+ order to call SA_SET_SYM_ENDNDX correctly. */
+ if (! symp->sy_used_in_reloc
+ && ((symp->bsym->flags & BSF_SECTION_SYM) != 0
+ || (! S_IS_EXTERNAL (symp)
+ && ! symp->sy_tc.output
+ && S_GET_STORAGE_CLASS (symp) != C_FILE)))
+ *punt = 1;
+#endif
+
if (set_end != (symbolS *) NULL
&& ! *punt)
{
set_end = NULL;
}
+ if (next_set_end != NULL
+ && ! *punt)
+ set_end = next_set_end;
+
+ if (! *punt
+ && S_GET_STORAGE_CLASS (symp) == C_FCN
+ && strcmp (S_GET_NAME (symp), ".bf") == 0)
+ {
+ if (coff_last_bf != NULL)
+ SA_SET_SYM_ENDNDX (coff_last_bf, symp);
+ coff_last_bf = symp;
+ }
+
if (coffsymbol (symp->bsym)->lineno)
{
- int i, n;
+ int i;
struct line_no *lptr;
alent *l;
lptr = (struct line_no *) coffsymbol (symp->bsym)->lineno;
for (i = 0; lptr; lptr = lptr->next)
i++;
- n = i + 1;
lptr = (struct line_no *) coffsymbol (symp->bsym)->lineno;
- l = (alent *) bfd_alloc_by_size_t (stdoutput, n * sizeof (alent));
+
+ /* 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 = (alent *) bfd_alloc_by_size_t (stdoutput, (i + 2) * sizeof (alent));
coffsymbol (symp->bsym)->lineno = l;
- for (i = n - 1; i > 0; i--)
+ 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;
}
}
+void
+coff_adjust_section_syms (abfd, sec, x)
+ bfd *abfd;
+ asection *sec;
+ PTR x;
+{
+ symbolS *secsym;
+ segment_info_type *seginfo = seg_info (sec);
+ int nlnno, nrelocs = 0;
+
+ /* RS/6000 gas creates a .debug section manually in ppc_frob_file in
+ tc-ppc.c. Do not get confused by it. */
+ if (seginfo == NULL)
+ return;
+
+ if (!strcmp (sec->name, ".text"))
+ nlnno = coff_n_line_nos;
+ else
+ nlnno = 0;
+ {
+ /* @@ Hope that none of the fixups expand to more than one reloc
+ entry... */
+ fixS *fixp = seginfo->fix_root;
+ while (fixp)
+ {
+ fixp = fixp->fx_next;
+ nrelocs++;
+ }
+ }
+ if (bfd_get_section_size_before_reloc (sec) == 0
+ && nrelocs == 0 && nlnno == 0)
+ return;
+ secsym = section_symbol (sec);
+ SA_SET_SCN_NRELOC (secsym, nrelocs);
+ SA_SET_SCN_NLINNO (secsym, nlnno);
+}
+
+void
+coff_frob_file ()
+{
+ bfd_map_over_sections (stdoutput, coff_adjust_section_syms, (char*) 0);
+}
+
/*
* implement the .section pseudo op:
* .section name {, "flags"}
flagword flags;
asection *sec;
+ if (flag_mri)
+ {
+ char type;
+
+ s_mri_sect (&type);
+ return;
+ }
+
section_name = input_line_pointer;
c = get_symbol_end ();
bfd_section_name (stdoutput, sec),
bfd_errmsg (bfd_get_error ()));
}
+
+ demand_empty_rest_of_line ();
}
void
-coff_frob_file ()
+coff_adjust_symtab ()
{
if (symbol_rootP == NULL
|| S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE)
}
void
-coff_frob_section (strsec)
- segT strsec;
+coff_frob_section (sec)
+ segT sec;
{
- segT sec;
+ segT strsec;
char *strname, *p;
fragS *fragp;
- bfd_vma size, n_entries;
+ bfd_vma size, n_entries, mask;
+
+ /* The COFF back end in BFD requires that all section sizes be
+ rounded up to multiples of the corresponding section alignments.
+ Seems kinda silly to me, but that's the way it is. */
+ size = bfd_get_section_size_before_reloc (sec);
+ mask = ((bfd_vma) 1 << (bfd_vma) sec->alignment_power) - 1;
+ if (size & mask)
+ {
+ size = (size + mask) & ~mask;
+ bfd_set_section_size (stdoutput, sec, size);
+ }
+
+ /* If the section size is non-zero, the section symbol needs an aux
+ entry associated with it, indicating the size. We don't know
+ all the values yet; coff_frob_symbol will fill them in later. */
+ if (size)
+ {
+ symbolS *secsym = section_symbol (sec);
+
+ S_SET_STORAGE_CLASS (secsym, C_STAT);
+ S_SET_NUMBER_AUXILIARY (secsym, 1);
+ SF_SET_STATICS (secsym);
+ SA_SET_SCN_SCNLEN (secsym, size);
+ }
/* @@ these should be in a "stabs.h" file, or maybe as.h */
#ifndef STAB_SECTION_NAME
#ifndef STAB_STRING_SECTION_NAME
#define STAB_STRING_SECTION_NAME ".stabstr"
#endif
- if (strcmp (STAB_STRING_SECTION_NAME, strsec->name))
+ if (strcmp (STAB_STRING_SECTION_NAME, sec->name))
return;
+ strsec = sec;
sec = subseg_get (STAB_SECTION_NAME, 0);
/* size is already rounded up, since other section will be listed first */
size = bfd_get_section_size_before_reloc (strsec);
#endif /* DEBUG */
-/* end of obj-coff.c */
+#else /* not BFD_ASSEMBLER */
+
+#include "frags.h"
+/* This is needed because we include internal bfd things. */
+#include <time.h>
+
+#include "libbfd.h"
+#include "libcoff.h"
+
+#ifdef TE_PE
+#include "coff/pe.h"
+#endif
+
+/* The NOP_OPCODE is for the alignment fill value. Fill with nop so
+ that we can stick sections together without causing trouble. */
+#ifndef NOP_OPCODE
+#define NOP_OPCODE 0x00
+#endif
+
+/* The zeroes if symbol name is longer than 8 chars */
+#define S_SET_ZEROES(s,v) ((s)->sy_symbol.ost_entry.n_zeroes = (v))
+
+#define MIN(a,b) ((a) < (b)? (a) : (b))
+/* This vector is used to turn an internal segment into a section #
+ suitable for insertion into a coff symbol table
+ */
+
+const short seg_N_TYPE[] =
+{ /* in: segT out: N_TYPE bits */
+ C_ABS_SECTION,
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
+ 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
+ 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+ 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ C_UNDEF_SECTION, /* SEG_UNKNOWN */
+ C_UNDEF_SECTION, /* SEG_GOOF */
+ C_UNDEF_SECTION, /* SEG_EXPR */
+ C_DEBUG_SECTION, /* SEG_DEBUG */
+ C_NTV_SECTION, /* SEG_NTV */
+ C_PTV_SECTION, /* SEG_PTV */
+ C_REGISTER_SECTION, /* SEG_REGISTER */
+};
+
+int function_lineoff = -1; /* Offset in line#s where the last function
+ started (the odd entry for line #0) */
+
+static symbolS *last_line_symbol;
+
+/* Add 4 to the real value to get the index and compensate the
+ negatives. This vector is used by S_GET_SEGMENT to turn a coff
+ section number into a segment number
+*/
+static symbolS *previous_file_symbol;
+void c_symbol_merge ();
+static int line_base;
+
+symbolS *c_section_symbol ();
+bfd *abfd;
+
+static void fixup_segment PARAMS ((segment_info_type *segP,
+ segT this_segment_type));
+
+
+static void fixup_mdeps PARAMS ((fragS *,
+ object_headers *,
+ segT));
+
+
+static void fill_section PARAMS ((bfd * abfd,
+ object_headers *,
+ unsigned long *));
+
+
+static int c_line_new PARAMS ((symbolS * symbol, long paddr,
+ int line_number,
+ fragS * frag));
+
+
+static void w_symbols PARAMS ((bfd * abfd, char *where,
+ symbolS * symbol_rootP));
+
+static void adjust_stab_section PARAMS ((bfd *abfd, segT seg));
+
+static void obj_coff_lcomm PARAMS ((int));
+static void obj_coff_text PARAMS ((int));
+static void obj_coff_data PARAMS ((int));
+static void obj_coff_bss PARAMS ((int));
+static void obj_coff_ident PARAMS ((int));
+void obj_coff_section PARAMS ((int));
+
+/* Section stuff
+
+ We allow more than just the standard 3 sections, infact, we allow
+ 40 sections, (though the usual three have to be there).
+
+ This structure performs the mappings for us:
+*/
+
+
+typedef struct
+{
+ segT seg_t;
+ int i;
+} seg_info_type;
+
+static const seg_info_type seg_info_off_by_4[] =
+{
+ {SEG_PTV, },
+ {SEG_NTV, },
+ {SEG_DEBUG, },
+ {SEG_ABSOLUTE, },
+ {SEG_UNKNOWN, },
+ {SEG_E0}, {SEG_E1}, {SEG_E2}, {SEG_E3}, {SEG_E4},
+ {SEG_E5}, {SEG_E6}, {SEG_E7}, {SEG_E8}, {SEG_E9},
+ {SEG_E10},{SEG_E11},{SEG_E12},{SEG_E13},{SEG_E14},
+ {SEG_E15},{SEG_E16},{SEG_E17},{SEG_E18},{SEG_E19},
+ {SEG_E20},{SEG_E21},{SEG_E22},{SEG_E23},{SEG_E24},
+ {SEG_E25},{SEG_E26},{SEG_E27},{SEG_E28},{SEG_E29},
+ {SEG_E30},{SEG_E31},{SEG_E32},{SEG_E33},{SEG_E34},
+ {SEG_E35},{SEG_E36},{SEG_E37},{SEG_E38},{SEG_E39},
+ {(segT)40},
+ {(segT)41},
+ {(segT)42},
+ {(segT)43},
+ {(segT)44},
+ {(segT)45},
+ {(segT)0},
+ {(segT)0},
+ {(segT)0},
+ {SEG_REGISTER}
+};
+
+
+
+#define SEG_INFO_FROM_SECTION_NUMBER(x) (seg_info_off_by_4[(x)+4])
+
+static relax_addressT
+relax_align (address, alignment)
+ relax_addressT address;
+ long alignment;
+{
+ relax_addressT mask;
+ relax_addressT new_address;
+
+ mask = ~((~0) << alignment);
+ new_address = (address + mask) & (~mask);
+ return (new_address - address);
+}
+
+
+segT
+s_get_segment (x)
+ symbolS * x;
+{
+ return SEG_INFO_FROM_SECTION_NUMBER (x->sy_symbol.ost_entry.n_scnum).seg_t;
+}
+
+
+
+/* calculate the size of the frag chain and fill in the section header
+ to contain all of it, also fill in the addr of the sections */
+static unsigned int
+size_section (abfd, idx)
+ bfd * abfd;
+ unsigned int idx;
+{
+
+ unsigned int size = 0;
+ fragS *frag = segment_info[idx].frchainP->frch_root;
+ while (frag)
+ {
+ size = frag->fr_address;
+ if (frag->fr_address != size)
+ {
+ fprintf (stderr, "Out of step\n");
+ size = frag->fr_address;
+ }
+
+ switch (frag->fr_type)
+ {
+#ifdef TC_COFF_SIZEMACHDEP
+ case rs_machine_dependent:
+ size += TC_COFF_SIZEMACHDEP (frag);
+ break;
+#endif
+ case rs_space:
+ assert (frag->fr_symbol == 0);
+ case rs_fill:
+ case rs_org:
+ size += frag->fr_fix;
+ size += frag->fr_offset * frag->fr_var;
+ break;
+ case rs_align:
+ case rs_align_code:
+ size += frag->fr_fix;
+ size += relax_align (size, frag->fr_offset);
+ break;
+ default:
+ BAD_CASE (frag->fr_type);
+ break;
+ }
+ frag = frag->fr_next;
+ }
+ segment_info[idx].scnhdr.s_size = size;
+ return size;
+}
+
+
+static unsigned int
+count_entries_in_chain (idx)
+ unsigned int idx;
+{
+ unsigned int nrelocs;
+ fixS *fixup_ptr;
+
+ /* Count the relocations */
+ fixup_ptr = segment_info[idx].fix_root;
+ nrelocs = 0;
+ while (fixup_ptr != (fixS *) NULL)
+ {
+ if (TC_COUNT_RELOC (fixup_ptr))
+ {
+#ifdef TC_A29K
+ if (fixup_ptr->fx_r_type == RELOC_CONSTH)
+ nrelocs += 2;
+ else
+ nrelocs++;
+#else
+ nrelocs++;
+#endif
+ }
+
+ fixup_ptr = fixup_ptr->fx_next;
+ }
+ return nrelocs;
+}
+
+#ifdef TE_AUX
+
+static int compare_external_relocs PARAMS ((const PTR, const PTR));
+
+/* AUX's ld expects relocations to be sorted */
+static int
+compare_external_relocs (x, y)
+ const PTR x;
+ const PTR y;
+{
+ struct external_reloc *a = (struct external_reloc *) x;
+ struct external_reloc *b = (struct external_reloc *) y;
+ bfd_vma aadr = bfd_getb32 (a->r_vaddr);
+ bfd_vma badr = bfd_getb32 (b->r_vaddr);
+ return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
+}
+
+#endif
+
+/* output all the relocations for a section */
+void
+do_relocs_for (abfd, h, file_cursor)
+ bfd * abfd;
+ object_headers * h;
+ unsigned long *file_cursor;
+{
+ unsigned int nrelocs;
+ unsigned int idx;
+ unsigned long reloc_start = *file_cursor;
+
+ for (idx = SEG_E0; idx < SEG_LAST; idx++)
+ {
+ if (segment_info[idx].scnhdr.s_name[0])
+ {
+ struct external_reloc *ext_ptr;
+ struct external_reloc *external_reloc_vec;
+ unsigned int external_reloc_size;
+ unsigned int base = segment_info[idx].scnhdr.s_paddr;
+ fixS *fix_ptr = segment_info[idx].fix_root;
+ nrelocs = count_entries_in_chain (idx);
+
+ if (nrelocs)
+ /* Bypass this stuff if no relocs. This also incidentally
+ avoids a SCO bug, where free(malloc(0)) tends to crash. */
+ {
+ external_reloc_size = nrelocs * RELSZ;
+ external_reloc_vec =
+ (struct external_reloc *) malloc (external_reloc_size);
+
+ ext_ptr = external_reloc_vec;
+
+ /* Fill in the internal coff style reloc struct from the
+ internal fix list. */
+ while (fix_ptr)
+ {
+ struct internal_reloc intr;
+
+ /* Only output some of the relocations */
+ if (TC_COUNT_RELOC (fix_ptr))
+ {
+#ifdef TC_RELOC_MANGLE
+ TC_RELOC_MANGLE (&segment_info[idx], fix_ptr, &intr,
+ base);
+
+#else
+ symbolS *dot;
+ symbolS *symbol_ptr = fix_ptr->fx_addsy;
+
+ intr.r_type = TC_COFF_FIX2RTYPE (fix_ptr);
+ intr.r_vaddr =
+ base + fix_ptr->fx_frag->fr_address + fix_ptr->fx_where;
+
+#ifdef TC_KEEP_FX_OFFSET
+ intr.r_offset = fix_ptr->fx_offset;
+#else
+ intr.r_offset = 0;
+#endif
+
+ while (symbol_ptr->sy_value.X_op == O_symbol
+ && (! S_IS_DEFINED (symbol_ptr)
+ || S_IS_COMMON (symbol_ptr)))
+ symbol_ptr = symbol_ptr->sy_value.X_add_symbol;
+
+ /* Turn the segment of the symbol into an offset. */
+ if (symbol_ptr)
+ {
+ dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot;
+ if (dot)
+ {
+ intr.r_symndx = dot->sy_number;
+ }
+ else
+ {
+ intr.r_symndx = symbol_ptr->sy_number;
+ }
+
+ }
+ else
+ {
+ intr.r_symndx = -1;
+ }
+#endif
+
+ (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr);
+ ext_ptr++;
+
+#if defined(TC_A29K)
+
+ /* The 29k has a special kludge for the high 16 bit
+ reloc. Two relocations are emited, R_IHIHALF,
+ and R_IHCONST. The second one doesn't contain a
+ symbol, but uses the value for offset. */
+
+ if (intr.r_type == R_IHIHALF)
+ {
+ /* now emit the second bit */
+ intr.r_type = R_IHCONST;
+ intr.r_symndx = fix_ptr->fx_addnumber;
+ (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr);
+ ext_ptr++;
+ }
+#endif
+ }
+
+ fix_ptr = fix_ptr->fx_next;
+ }
+
+#ifdef TE_AUX
+ /* Sort the reloc table */
+ qsort ((PTR) external_reloc_vec, nrelocs,
+ sizeof (struct external_reloc), compare_external_relocs);
+#endif
+
+ /* Write out the reloc table */
+ bfd_write ((PTR) external_reloc_vec, 1, external_reloc_size,
+ abfd);
+ free (external_reloc_vec);
+
+ /* Fill in section header info. */
+ segment_info[idx].scnhdr.s_relptr = *file_cursor;
+ *file_cursor += external_reloc_size;
+ segment_info[idx].scnhdr.s_nreloc = nrelocs;
+ }
+ else
+ {
+ /* No relocs */
+ segment_info[idx].scnhdr.s_relptr = 0;
+ }
+ }
+ }
+ /* Set relocation_size field in file headers */
+ H_SET_RELOCATION_SIZE (h, *file_cursor - reloc_start, 0);
+}
+
+
+/* run through a frag chain and write out the data to go with it, fill
+ in the scnhdrs with the info on the file postions
+*/
+static void
+fill_section (abfd, h, file_cursor)
+ bfd * abfd;
+ object_headers *h;
+ unsigned long *file_cursor;
+{
+
+ unsigned int i;
+ unsigned int paddr = 0;
+
+ for (i = SEG_E0; i < SEG_UNKNOWN; i++)
+ {
+ unsigned int offset = 0;
+ struct internal_scnhdr *s = &(segment_info[i].scnhdr);
+
+ PROGRESS (1);
+
+ if (s->s_name[0])
+ {
+ fragS *frag = segment_info[i].frchainP->frch_root;
+ char *buffer;
+
+ if (s->s_size == 0)
+ s->s_scnptr = 0;
+ else
+ {
+ buffer = xmalloc (s->s_size);
+ s->s_scnptr = *file_cursor;
+ }
+ know (s->s_paddr == paddr);
+
+ if (strcmp (s->s_name, ".text") == 0)
+ s->s_flags |= STYP_TEXT;
+ else if (strcmp (s->s_name, ".data") == 0)
+ s->s_flags |= STYP_DATA;
+ else if (strcmp (s->s_name, ".bss") == 0)
+ {
+ s->s_scnptr = 0;
+ s->s_flags |= STYP_BSS;
+
+ /* @@ Should make the i386 and a29k coff targets define
+ COFF_NOLOAD_PROBLEM, and have only one test here. */
+#ifndef TC_I386
+#ifndef TC_A29K
+#ifndef COFF_NOLOAD_PROBLEM
+ /* Apparently the SVR3 linker (and exec syscall) and UDI
+ mondfe progrem are confused by noload sections. */
+ s->s_flags |= STYP_NOLOAD;
+#endif
+#endif
+#endif
+ }
+ else if (strcmp (s->s_name, ".lit") == 0)
+ s->s_flags = STYP_LIT | STYP_TEXT;
+ else if (strcmp (s->s_name, ".init") == 0)
+ s->s_flags |= STYP_TEXT;
+ else if (strcmp (s->s_name, ".fini") == 0)
+ s->s_flags |= STYP_TEXT;
+ else if (strncmp (s->s_name, ".comment", 8) == 0)
+ s->s_flags |= STYP_INFO;
+
+ while (frag)
+ {
+ unsigned int fill_size;
+ switch (frag->fr_type)
+ {
+ case rs_machine_dependent:
+ if (frag->fr_fix)
+ {
+ memcpy (buffer + frag->fr_address,
+ frag->fr_literal,
+ (unsigned int) frag->fr_fix);
+ offset += frag->fr_fix;
+ }
+
+ break;
+ case rs_space:
+ assert (frag->fr_symbol == 0);
+ case rs_fill:
+ case rs_align:
+ case rs_align_code:
+ case rs_org:
+ if (frag->fr_fix)
+ {
+ memcpy (buffer + frag->fr_address,
+ frag->fr_literal,
+ (unsigned int) frag->fr_fix);
+ offset += frag->fr_fix;
+ }
+
+ fill_size = frag->fr_var;
+ if (fill_size && frag->fr_offset > 0)
+ {
+ unsigned int count;
+ unsigned int off = frag->fr_fix;
+ for (count = frag->fr_offset; count; count--)
+ {
+ if (fill_size + frag->fr_address + off <= s->s_size)
+ {
+ memcpy (buffer + frag->fr_address + off,
+ frag->fr_literal + frag->fr_fix,
+ fill_size);
+ off += fill_size;
+ offset += fill_size;
+ }
+ }
+ }
+ break;
+ case rs_broken_word:
+ break;
+ default:
+ abort ();
+ }
+ frag = frag->fr_next;
+ }
+
+ if (s->s_size != 0)
+ {
+ if (s->s_scnptr != 0)
+ {
+ bfd_write (buffer, s->s_size, 1, abfd);
+ *file_cursor += s->s_size;
+ }
+ free (buffer);
+ }
+ paddr += s->s_size;
+ }
+ }
+}
+
+/* Coff file generation & utilities */
+
+static void
+coff_header_append (abfd, h)
+ bfd * abfd;
+ object_headers * h;
+{
+ unsigned int i;
+ char buffer[1000];
+ char buffero[1000];
+
+ bfd_seek (abfd, 0, 0);
+
+#ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
+ H_SET_MAGIC_NUMBER (h, COFF_MAGIC);
+ H_SET_VERSION_STAMP (h, 0);
+ H_SET_ENTRY_POINT (h, 0);
+ H_SET_TEXT_START (h, segment_info[SEG_E0].frchainP->frch_root->fr_address);
+ H_SET_DATA_START (h, segment_info[SEG_E1].frchainP->frch_root->fr_address);
+ H_SET_SIZEOF_OPTIONAL_HEADER (h, bfd_coff_swap_aouthdr_out(abfd, &h->aouthdr,
+ buffero));
+#else /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */
+ H_SET_SIZEOF_OPTIONAL_HEADER (h, 0);
+#endif /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */
+
+ i = bfd_coff_swap_filehdr_out (abfd, &h->filehdr, buffer);
+
+ bfd_write (buffer, i, 1, abfd);
+ bfd_write (buffero, H_GET_SIZEOF_OPTIONAL_HEADER (h), 1, abfd);
+
+ for (i = SEG_E0; i < SEG_LAST; i++)
+ {
+#ifdef COFF_LONG_SECTION_NAMES
+ unsigned long string_size = 4;
+#endif
+
+ if (segment_info[i].scnhdr.s_name[0])
+ {
+ unsigned int size;
+
+#ifdef COFF_LONG_SECTION_NAMES
+ /* Support long section names as found in PE. This code
+ must coordinate with that in write_object_file and
+ w_strings. */
+ if (strlen (segment_info[i].name) > SCNNMLEN)
+ {
+ memset (segment_info[i].scnhdr.s_name, 0, SCNNMLEN);
+ sprintf (segment_info[i].scnhdr.s_name, "/%lu", string_size);
+ string_size += strlen (segment_info[i].name) + 1;
+ }
+#endif
+
+ size = bfd_coff_swap_scnhdr_out (abfd,
+ &(segment_info[i].scnhdr),
+ buffer);
+ if (size == 0)
+ as_bad ("bfd_coff_swap_scnhdr_out failed");
+ bfd_write (buffer, size, 1, abfd);
+ }
+ }
+}
+
+
+char *
+symbol_to_chars (abfd, where, symbolP)
+ bfd * abfd;
+ char *where;
+ symbolS * symbolP;
+{
+ unsigned int numaux = symbolP->sy_symbol.ost_entry.n_numaux;
+ unsigned int i;
+ valueT val;
+
+ /* Turn any symbols with register attributes into abs symbols */
+ if (S_GET_SEGMENT (symbolP) == reg_section)
+ {
+ S_SET_SEGMENT (symbolP, absolute_section);
+ }
+ /* At the same time, relocate all symbols to their output value */
+
+ val = (segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_paddr
+ + S_GET_VALUE (symbolP));
+
+ S_SET_VALUE (symbolP, val);
+
+ symbolP->sy_symbol.ost_entry.n_value = val;
+
+ where += bfd_coff_swap_sym_out (abfd, &symbolP->sy_symbol.ost_entry,
+ where);
+
+ for (i = 0; i < numaux; i++)
+ {
+ where += bfd_coff_swap_aux_out (abfd,
+ &symbolP->sy_symbol.ost_auxent[i],
+ S_GET_DATA_TYPE (symbolP),
+ S_GET_STORAGE_CLASS (symbolP),
+ i, numaux, where);
+ }
+ return where;
+
+}
+
+void
+obj_symbol_new_hook (symbolP)
+ symbolS *symbolP;
+{
+ char underscore = 0; /* Symbol has leading _ */
+
+ /* Effective symbol */
+ /* Store the pointer in the offset. */
+ S_SET_ZEROES (symbolP, 0L);
+ S_SET_DATA_TYPE (symbolP, T_NULL);
+ S_SET_STORAGE_CLASS (symbolP, 0);
+ S_SET_NUMBER_AUXILIARY (symbolP, 0);
+ /* Additional information */
+ symbolP->sy_symbol.ost_flags = 0;
+ /* Auxiliary entries */
+ memset ((char *) &symbolP->sy_symbol.ost_auxent[0], 0, AUXESZ);
+
+ if (S_IS_STRING (symbolP))
+ SF_SET_STRING (symbolP);
+ if (!underscore && S_IS_LOCAL (symbolP))
+ SF_SET_LOCAL (symbolP);
+}
+
+/*
+ * Handle .ln directives.
+ */
+
+static void
+obj_coff_ln (appline)
+ int appline;
+{
+ int l;
+
+ if (! appline && def_symbol_in_progress != NULL)
+ {
+ as_warn (".ln pseudo-op inside .def/.endef: ignored.");
+ demand_empty_rest_of_line ();
+ return;
+ } /* wrong context */
+
+ l = get_absolute_expression ();
+ c_line_new (0, frag_now_fix (), l, frag_now);
+#ifndef NO_LISTING
+ {
+ extern int listing;
+
+ if (listing)
+ {
+ if (! appline)
+ l += line_base - 1;
+ listing_source_line ((unsigned int) l);
+ }
+
+ }
+#endif
+ demand_empty_rest_of_line ();
+}
+
+/*
+ * def()
+ *
+ * Handle .def directives.
+ *
+ * One might ask : why can't we symbol_new if the symbol does not
+ * already exist and fill it with debug information. Because of
+ * the C_EFCN special symbol. It would clobber the value of the
+ * function symbol before we have a chance to notice that it is
+ * a C_EFCN. And a second reason is that the code is more clear this
+ * way. (at least I think it is :-).
+ *
+ */
+
+#define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';')
+#define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \
+ *input_line_pointer == '\t') \
+ input_line_pointer++;
+
+static void
+obj_coff_def (what)
+ int what;
+{
+ 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;
+ } /* if not inside .def/.endef */
+
+ SKIP_WHITESPACES ();
+
+ def_symbol_in_progress = (symbolS *) obstack_alloc (¬es, sizeof (*def_symbol_in_progress));
+ memset (def_symbol_in_progress, 0, sizeof (*def_symbol_in_progress));
+
+ 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);
+
+ /* Initialize the new symbol */
+#ifdef STRIP_UNDERSCORE
+ S_SET_NAME (def_symbol_in_progress, (*symbol_name_copy == '_'
+ ? symbol_name_copy + 1
+ : symbol_name_copy));
+#else /* STRIP_UNDERSCORE */
+ S_SET_NAME (def_symbol_in_progress, symbol_name_copy);
+#endif /* STRIP_UNDERSCORE */
+ /* free(symbol_name_copy); */
+ def_symbol_in_progress->sy_name_offset = (unsigned long) ~0;
+ def_symbol_in_progress->sy_number = ~0;
+ def_symbol_in_progress->sy_frag = &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 ();
+}
+
+unsigned int dim_index;
+
+
+static void
+obj_coff_endef (ignore)
+ int ignore;
+{
+ symbolS *symbolP = 0;
+ /* DIM BUG FIX sac@cygnus.com */
+ dim_index = 0;
+ if (def_symbol_in_progress == NULL)
+ {
+ as_warn (".endef pseudo-op used outside of .def/.endef: ignored.");
+ demand_empty_rest_of_line ();
+ return;
+ } /* if not inside .def/.endef */
+
+ /* Set the section number according to storage class. */
+ switch (S_GET_STORAGE_CLASS (def_symbol_in_progress))
+ {
+ case C_STRTAG:
+ case C_ENTAG:
+ case C_UNTAG:
+ SF_SET_TAG (def_symbol_in_progress);
+ /* intentional fallthrough */
+ case C_FILE:
+ case C_TPDEF:
+ SF_SET_DEBUG (def_symbol_in_progress);
+ S_SET_SEGMENT (def_symbol_in_progress, SEG_DEBUG);
+ break;
+
+ case C_EFCN:
+ SF_SET_LOCAL (def_symbol_in_progress); /* Do not emit this symbol. */
+ /* intentional fallthrough */
+ case C_BLOCK:
+ SF_SET_PROCESS (def_symbol_in_progress); /* Will need processing before writing */
+ /* intentional fallthrough */
+ case C_FCN:
+ S_SET_SEGMENT (def_symbol_in_progress, SEG_E0);
+
+ if (strcmp (S_GET_NAME (def_symbol_in_progress), ".bf") == 0)
+ { /* .bf */
+ if (function_lineoff < 0)
+ {
+ fprintf (stderr, "`.bf' symbol without preceding function\n");
+ } /* missing function symbol */
+ SA_GET_SYM_LNNOPTR (last_line_symbol) = function_lineoff;
+
+ SF_SET_PROCESS (last_line_symbol);
+ SF_SET_ADJ_LNNOPTR (last_line_symbol);
+ SF_SET_PROCESS (def_symbol_in_progress);
+ function_lineoff = -1;
+ }
+ /* Value is always set to . */
+ def_symbol_in_progress->sy_frag = frag_now;
+ S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ());
+ break;
+
+#ifdef C_AUTOARG
+ case C_AUTOARG:
+#endif /* C_AUTOARG */
+ case C_AUTO:
+ case C_REG:
+ case C_MOS:
+ case C_MOE:
+ case C_MOU:
+ case C_ARG:
+ case C_REGPARM:
+ case C_FIELD:
+ case C_EOS:
+ SF_SET_DEBUG (def_symbol_in_progress);
+ S_SET_SEGMENT (def_symbol_in_progress, absolute_section);
+ break;
+
+ case C_EXT:
+ case C_STAT:
+ case C_LABEL:
+ /* Valid but set somewhere else (s_comm, s_lcomm, colon) */
+ break;
+
+ case C_USTATIC:
+ case C_EXTDEF:
+ case C_ULABEL:
+ as_warn ("unexpected storage class %d", S_GET_STORAGE_CLASS (def_symbol_in_progress));
+ break;
+ } /* switch on storage class */
+
+ /* Now that we have built a debug symbol, try to find if we should
+ merge with an existing symbol or not. If a symbol is C_EFCN or
+ absolute_section or untagged SEG_DEBUG it never merges. We also
+ don't merge labels, which are in a different namespace, nor
+ symbols which have not yet been defined since they are typically
+ unique, nor do we merge tags with non-tags. */
+
+ /* Two cases for functions. Either debug followed by definition or
+ definition followed by debug. For definition first, we will
+ merge the debug symbol into the definition. For debug first, the
+ lineno entry MUST point to the definition function or else it
+ will point off into space when crawl_symbols() merges the debug
+ symbol into the real symbol. Therefor, let's presume the debug
+ symbol is a real function reference. */
+
+ /* FIXME-SOON If for some reason the definition label/symbol is
+ never seen, this will probably leave an undefined symbol at link
+ time. */
+
+ if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN
+ || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL
+ || (S_GET_SEGMENT (def_symbol_in_progress) == SEG_DEBUG
+ && !SF_GET_TAG (def_symbol_in_progress))
+ || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section
+ || def_symbol_in_progress->sy_value.X_op != O_constant
+ || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP)) == NULL
+ || (SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP)))
+ {
+ symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP,
+ &symbol_lastP);
+ }
+ else
+ {
+ /* This symbol already exists, merge the newly created symbol
+ into the old one. This is not mandatory. The linker can
+ handle duplicate symbols correctly. But I guess that it save
+ a *lot* of space if the assembly file defines a lot of
+ symbols. [loic] */
+
+ /* The debug entry (def_symbol_in_progress) is merged into the
+ previous definition. */
+
+ c_symbol_merge (def_symbol_in_progress, symbolP);
+ /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */
+ def_symbol_in_progress = symbolP;
+
+ if (SF_GET_FUNCTION (def_symbol_in_progress)
+ || SF_GET_TAG (def_symbol_in_progress))
+ {
+ /* For functions, and tags, the symbol *must* be where the
+ debug symbol appears. Move the existing symbol to the
+ current place. */
+ /* If it already is at the end of the symbol list, do nothing */
+ if (def_symbol_in_progress != symbol_lastP)
+ {
+ symbol_remove (def_symbol_in_progress, &symbol_rootP,
+ &symbol_lastP);
+ symbol_append (def_symbol_in_progress, symbol_lastP,
+ &symbol_rootP, &symbol_lastP);
+ } /* if not already in place */
+ } /* if function */
+ } /* normal or mergable */
+
+ if (SF_GET_TAG (def_symbol_in_progress)
+ && symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP) == NULL)
+ {
+ tag_insert (S_GET_NAME (def_symbol_in_progress), def_symbol_in_progress);
+ }
+
+ if (SF_GET_FUNCTION (def_symbol_in_progress))
+ {
+ know (sizeof (def_symbol_in_progress) <= sizeof (long));
+ function_lineoff
+ = c_line_new (def_symbol_in_progress, 0, 0, &zero_address_frag);
+
+ SF_SET_PROCESS (def_symbol_in_progress);
+
+ if (symbolP == NULL)
+ {
+ /* That is, if this is the first time we've seen the
+ function... */
+ symbol_table_insert (def_symbol_in_progress);
+ } /* definition follows debug */
+ } /* Create the line number entry pointing to the function being defined */
+
+ def_symbol_in_progress = NULL;
+ demand_empty_rest_of_line ();
+}
+
+static void
+obj_coff_dim (ignore)
+ int ignore;
+{
+ int dim_index;
+
+ if (def_symbol_in_progress == NULL)
+ {
+ as_warn (".dim pseudo-op used outside of .def/.endef: ignored.");
+ demand_empty_rest_of_line ();
+ return;
+ } /* if not inside .def/.endef */
+
+ S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
+
+ for (dim_index = 0; dim_index < DIMNUM; dim_index++)
+ {
+ SKIP_WHITESPACES ();
+ SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index,
+ get_absolute_expression ());
+
+ switch (*input_line_pointer)
+ {
+ case ',':
+ input_line_pointer++;
+ break;
+
+ default:
+ as_warn ("badly formed .dim directive ignored");
+ /* intentional fallthrough */
+ case '\n':
+ case ';':
+ dim_index = DIMNUM;
+ break;
+ }
+ }
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+obj_coff_line (ignore)
+ int ignore;
+{
+ int this_base;
+ const char *name;
+
+ if (def_symbol_in_progress == NULL)
+ {
+ obj_coff_ln (0);
+ return;
+ }
+
+ name = S_GET_NAME (def_symbol_in_progress);
+ this_base = get_absolute_expression ();
+
+ /* Only .bf symbols indicate the use of a new base line number; the
+ line numbers associated with .ef, .bb, .eb are relative to the
+ start of the containing function. */
+ if (!strcmp (".bf", name))
+ {
+#if 0 /* XXX Can we ever have line numbers going backwards? */
+ if (this_base > line_base)
+#endif
+ {
+ line_base = this_base;
+ }
+
+#ifndef NO_LISTING
+ {
+ extern int listing;
+ if (listing)
+ {
+ listing_source_line ((unsigned int) line_base);
+ }
+ }
+#endif
+ }
+
+ S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
+ SA_SET_SYM_LNNO (def_symbol_in_progress, this_base);
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+obj_coff_size (ignore)
+ int ignore;
+{
+ if (def_symbol_in_progress == NULL)
+ {
+ as_warn (".size pseudo-op used outside of .def/.endef ignored.");
+ demand_empty_rest_of_line ();
+ return;
+ } /* if not inside .def/.endef */
+
+ S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
+ SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ());
+ demand_empty_rest_of_line ();
+}
+
+static void
+obj_coff_scl (ignore)
+ int ignore;
+{
+ if (def_symbol_in_progress == NULL)
+ {
+ as_warn (".scl pseudo-op used outside of .def/.endef ignored.");
+ demand_empty_rest_of_line ();
+ return;
+ } /* if not inside .def/.endef */
+
+ S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ());
+ demand_empty_rest_of_line ();
+}
+
+static void
+obj_coff_tag (ignore)
+ int ignore;
+{
+ char *symbol_name;
+ char name_end;
+
+ if (def_symbol_in_progress == NULL)
+ {
+ as_warn (".tag pseudo-op used outside of .def/.endef ignored.");
+ demand_empty_rest_of_line ();
+ return;
+ }
+
+ S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
+ symbol_name = input_line_pointer;
+ name_end = get_symbol_end ();
+
+ /* Assume that the symbol referred to by .tag is always defined.
+ This was a bad assumption. I've added find_or_make. xoxorich. */
+ SA_SET_SYM_TAGNDX (def_symbol_in_progress,
+ (long) tag_find_or_make (symbol_name));
+ if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L)
+ {
+ as_warn ("tag not found for .tag %s", symbol_name);
+ } /* not defined */
+
+ SF_SET_TAGGED (def_symbol_in_progress);
+ *input_line_pointer = name_end;
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+obj_coff_type (ignore)
+ int ignore;
+{
+ if (def_symbol_in_progress == NULL)
+ {
+ as_warn (".type pseudo-op used outside of .def/.endef ignored.");
+ demand_empty_rest_of_line ();
+ return;
+ } /* if not inside .def/.endef */
+
+ S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ());
+
+ if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) &&
+ S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF)
+ {
+ SF_SET_FUNCTION (def_symbol_in_progress);
+ } /* is a function */
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+obj_coff_val (ignore)
+ int ignore;
+{
+ if (def_symbol_in_progress == NULL)
+ {
+ as_warn (".val pseudo-op used outside of .def/.endef ignored.");
+ demand_empty_rest_of_line ();
+ return;
+ } /* if not inside .def/.endef */
+
+ if (is_name_beginner (*input_line_pointer))
+ {
+ char *symbol_name = input_line_pointer;
+ char name_end = get_symbol_end ();
+
+ if (!strcmp (symbol_name, "."))
+ {
+ def_symbol_in_progress->sy_frag = frag_now;
+ S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ());
+ /* If the .val is != from the .def (e.g. statics) */
+ }
+ else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name))
+ {
+ def_symbol_in_progress->sy_value.X_op = O_symbol;
+ def_symbol_in_progress->sy_value.X_add_symbol =
+ symbol_find_or_make (symbol_name);
+ def_symbol_in_progress->sy_value.X_op_symbol = NULL;
+ def_symbol_in_progress->sy_value.X_add_number = 0;
+
+ /* 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;
+
+ /* FIXME: this is to avoid an error message in the
+ FIXME case mentioned just above. */
+ while (! is_end_of_line[(unsigned char) *input_line_pointer])
+ ++input_line_pointer;
+ }
+ else
+ {
+ S_SET_VALUE (def_symbol_in_progress,
+ (valueT) get_absolute_expression ());
+ } /* if symbol based */
+
+ demand_empty_rest_of_line ();
+}
+
+#ifdef TE_PE
+
+/* Handle the .linkonce pseudo-op. This is parsed by s_linkonce in
+ read.c, which then calls this object file format specific routine. */
+
+void
+obj_coff_pe_handle_link_once (type)
+ enum linkonce_type type;
+{
+ seg_info (now_seg)->scnhdr.s_flags |= IMAGE_SCN_LNK_COMDAT;
+
+ /* We store the type in the seg_info structure, and use it to set up
+ the auxiliary entry for the section symbol in c_section_symbol. */
+ seg_info (now_seg)->linkonce = type;
+}
+
+#endif /* TE_PE */
+
+void
+obj_read_begin_hook ()
+{
+ /* These had better be the same. Usually 18 bytes. */
+#ifndef BFD_HEADERS
+ know (sizeof (SYMENT) == sizeof (AUXENT));
+ know (SYMESZ == AUXESZ);
+#endif
+ tag_init ();
+}
+
+/* This function runs through the symbol table and puts all the
+ externals onto another chain */
+
+/* The chain of globals. */
+symbolS *symbol_globalP;
+symbolS *symbol_global_lastP;
+
+/* The chain of externals */
+symbolS *symbol_externP;
+symbolS *symbol_extern_lastP;
+
+stack *block_stack;
+symbolS *last_functionP;
+static symbolS *last_bfP;
+symbolS *last_tagP;
+
+static unsigned int
+yank_symbols ()
+{
+ symbolS *symbolP;
+ unsigned int symbol_number = 0;
+ unsigned int last_file_symno = 0;
+
+ struct filename_list *filename_list_scan = filename_list_head;
+
+ for (symbolP = symbol_rootP;
+ symbolP;
+ symbolP = symbolP ? symbol_next (symbolP) : symbol_rootP)
+ {
+ if (symbolP->sy_mri_common)
+ {
+ if (S_GET_STORAGE_CLASS (symbolP) == C_EXT)
+ as_bad ("%s: global symbols not supported in common sections",
+ S_GET_NAME (symbolP));
+ symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
+ continue;
+ }
+
+ if (!SF_GET_DEBUG (symbolP))
+ {
+ /* Debug symbols do not need all this rubbish */
+ symbolS *real_symbolP;
+
+ /* L* and C_EFCN symbols never merge. */
+ if (!SF_GET_LOCAL (symbolP)
+ && !SF_GET_STATICS (symbolP)
+ && S_GET_STORAGE_CLASS (symbolP) != C_LABEL
+ && symbolP->sy_value.X_op == O_constant
+ && (real_symbolP = symbol_find_base (S_GET_NAME (symbolP), DO_NOT_STRIP))
+ && real_symbolP != symbolP)
+ {
+ /* FIXME-SOON: where do dups come from?
+ Maybe tag references before definitions? xoxorich. */
+ /* Move the debug data from the debug symbol to the
+ real symbol. Do NOT do the oposite (i.e. move from
+ real symbol to debug symbol and remove real symbol from the
+ list.) Because some pointers refer to the real symbol
+ whereas no pointers refer to the debug symbol. */
+ c_symbol_merge (symbolP, real_symbolP);
+ /* Replace the current symbol by the real one */
+ /* The symbols will never be the last or the first
+ because : 1st symbol is .file and 3 last symbols are
+ .text, .data, .bss */
+ symbol_remove (real_symbolP, &symbol_rootP, &symbol_lastP);
+ symbol_insert (real_symbolP, symbolP, &symbol_rootP, &symbol_lastP);
+ symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
+ symbolP = real_symbolP;
+ } /* if not local but dup'd */
+
+ if (flag_readonly_data_in_text && (S_GET_SEGMENT (symbolP) == SEG_E1))
+ {
+ S_SET_SEGMENT (symbolP, SEG_E0);
+ } /* push data into text */
+
+ resolve_symbol_value (symbolP);
+
+ if (S_GET_STORAGE_CLASS (symbolP) == C_NULL)
+ {
+ if (!S_IS_DEFINED (symbolP) && !SF_GET_LOCAL (symbolP))
+ {
+ S_SET_EXTERNAL (symbolP);
+ }
+ else if (S_GET_SEGMENT (symbolP) == SEG_E0)
+ {
+ S_SET_STORAGE_CLASS (symbolP, C_LABEL);
+ }
+ else
+ {
+ S_SET_STORAGE_CLASS (symbolP, C_STAT);
+ }
+ }
+
+ /* Mainly to speed up if not -g */
+ if (SF_GET_PROCESS (symbolP))
+ {
+ /* Handle the nested blocks auxiliary info. */
+ if (S_GET_STORAGE_CLASS (symbolP) == C_BLOCK)
+ {
+ if (!strcmp (S_GET_NAME (symbolP), ".bb"))
+ stack_push (block_stack, (char *) &symbolP);
+ else
+ { /* .eb */
+ register symbolS *begin_symbolP;
+ begin_symbolP = *(symbolS **) stack_pop (block_stack);
+ if (begin_symbolP == (symbolS *) 0)
+ as_warn ("mismatched .eb");
+ else
+ SA_SET_SYM_ENDNDX (begin_symbolP, symbol_number + 2);
+ }
+ }
+ /* If we are able to identify the type of a function, and we
+ are out of a function (last_functionP == 0) then, the
+ function symbol will be associated with an auxiliary
+ entry. */
+ if (last_functionP == (symbolS *) 0 &&
+ SF_GET_FUNCTION (symbolP))
+ {
+ last_functionP = symbolP;
+
+ if (S_GET_NUMBER_AUXILIARY (symbolP) < 1)
+ {
+ S_SET_NUMBER_AUXILIARY (symbolP, 1);
+ } /* make it at least 1 */
+
+ /* Clobber possible stale .dim information. */
+#if 0
+ /* Iffed out by steve - this fries the lnnoptr info too */
+ bzero (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen,
+ sizeof (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen));
+#endif
+ }
+ if (S_GET_STORAGE_CLASS (symbolP) == C_FCN)
+ {
+ if (strcmp (S_GET_NAME (symbolP), ".bf") == 0)
+ {
+ if (last_bfP != NULL)
+ SA_SET_SYM_ENDNDX (last_bfP, symbol_number);
+ last_bfP = symbolP;
+ }
+ }
+ else if (S_GET_STORAGE_CLASS (symbolP) == C_EFCN)
+ {
+ /* I don't even know if this is needed for sdb. But
+ the standard assembler generates it, so... */
+ if (last_functionP == (symbolS *) 0)
+ as_fatal ("C_EFCN symbol out of scope");
+ SA_SET_SYM_FSIZE (last_functionP,
+ (long) (S_GET_VALUE (symbolP) -
+ S_GET_VALUE (last_functionP)));
+ SA_SET_SYM_ENDNDX (last_functionP, symbol_number);
+ last_functionP = (symbolS *) 0;
+ }
+ }
+ }
+ else if (SF_GET_TAG (symbolP))
+ {
+ /* First descriptor of a structure must point to
+ the first slot after the structure description. */
+ last_tagP = symbolP;
+
+ }
+ else if (S_GET_STORAGE_CLASS (symbolP) == C_EOS)
+ {
+ /* +2 take in account the current symbol */
+ SA_SET_SYM_ENDNDX (last_tagP, symbol_number + 2);
+ }
+ else if (S_GET_STORAGE_CLASS (symbolP) == C_FILE)
+ {
+ /* If the filename was too long to fit in the
+ auxent, put it in the string table */
+ if (SA_GET_FILE_FNAME_ZEROS (symbolP) == 0
+ && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0)
+ {
+ SA_SET_FILE_FNAME_OFFSET (symbolP, string_byte_count);
+ string_byte_count += strlen (filename_list_scan->filename) + 1;
+ filename_list_scan = filename_list_scan->next;
+ }
+ if (S_GET_VALUE (symbolP))
+ {
+ S_SET_VALUE (symbolP, last_file_symno);
+ last_file_symno = symbol_number;
+ } /* no one points at the first .file symbol */
+ } /* if debug or tag or eos or file */
+
+ /* We must put the external symbols apart. The loader
+ does not bomb if we do not. But the references in
+ the endndx field for a .bb symbol are not corrected
+ if an external symbol is removed between .bb and .be.
+ I.e in the following case :
+ [20] .bb endndx = 22
+ [21] foo external
+ [22] .be
+ ld will move the symbol 21 to the end of the list but
+ endndx will still be 22 instead of 21. */
+
+
+ if (SF_GET_LOCAL (symbolP))
+ {
+ /* remove C_EFCN and LOCAL (L...) symbols */
+ /* next pointer remains valid */
+ symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
+
+ }
+ else if (symbolP->sy_value.X_op == O_symbol
+ && (! S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)))
+ {
+ /* Skip symbols which were equated to undefined or common
+ symbols. */
+ symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
+ }
+ else if (!S_IS_DEFINED (symbolP)
+ && !S_IS_DEBUG (symbolP)
+ && !SF_GET_STATICS (symbolP) &&
+ S_GET_STORAGE_CLASS (symbolP) == C_EXT)
+ { /* C_EXT && !SF_GET_FUNCTION(symbolP)) */
+ /* if external, Remove from the list */
+ symbolS *hold = symbol_previous (symbolP);
+
+ symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
+ symbol_clear_list_pointers (symbolP);
+ symbol_append (symbolP, symbol_extern_lastP, &symbol_externP, &symbol_extern_lastP);
+ symbolP = hold;
+ }
+ else if (! S_IS_DEBUG (symbolP)
+ && ! SF_GET_STATICS (symbolP)
+ && ! SF_GET_FUNCTION (symbolP)
+ && S_GET_STORAGE_CLASS (symbolP) == C_EXT)
+ {
+ symbolS *hold = symbol_previous (symbolP);
+
+ /* The O'Reilly COFF book says that defined global symbols
+ come at the end of the symbol table, just before
+ undefined global symbols. */
+
+ symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
+ symbol_clear_list_pointers (symbolP);
+ symbol_append (symbolP, symbol_global_lastP, &symbol_globalP,
+ &symbol_global_lastP);
+ symbolP = hold;
+ }
+ else
+ {
+ if (SF_GET_STRING (symbolP))
+ {
+ symbolP->sy_name_offset = string_byte_count;
+ string_byte_count += strlen (S_GET_NAME (symbolP)) + 1;
+ }
+ else
+ {
+ symbolP->sy_name_offset = 0;
+ } /* fix "long" names */
+
+ symbolP->sy_number = symbol_number;
+ symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP);
+ } /* if local symbol */
+ } /* traverse the symbol list */
+ return symbol_number;
+
+}
+
+
+static unsigned int
+glue_symbols (head, tail)
+ symbolS **head;
+ symbolS **tail;
+{
+ unsigned int symbol_number = 0;
+ symbolS *symbolP;
+
+ for (symbolP = *head; *head != NULL;)
+ {
+ symbolS *tmp = *head;
+
+ /* append */
+ symbol_remove (tmp, head, tail);
+ symbol_append (tmp, symbol_lastP, &symbol_rootP, &symbol_lastP);
+
+ /* and process */
+ if (SF_GET_STRING (tmp))
+ {
+ tmp->sy_name_offset = string_byte_count;
+ string_byte_count += strlen (S_GET_NAME (tmp)) + 1;
+ }
+ else
+ {
+ tmp->sy_name_offset = 0;
+ } /* fix "long" names */
+
+ tmp->sy_number = symbol_number;
+ symbol_number += 1 + S_GET_NUMBER_AUXILIARY (tmp);
+ } /* append the entire extern chain */
+
+ return symbol_number;
+}
+
+static unsigned int
+tie_tags ()
+{
+ unsigned int symbol_number = 0;
+
+ symbolS *symbolP;
+ for (symbolP = symbol_rootP; symbolP; symbolP =
+ symbol_next (symbolP))
+ {
+ symbolP->sy_number = symbol_number;
+
+
+
+ if (SF_GET_TAGGED (symbolP))
+ {
+ SA_SET_SYM_TAGNDX
+ (symbolP,
+ ((symbolS *) SA_GET_SYM_TAGNDX (symbolP))->sy_number);
+ }
+
+ symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP);
+ }
+ return symbol_number;
+
+}
+
+static void
+crawl_symbols (h, abfd)
+ object_headers *h;
+ bfd * abfd;
+{
+ unsigned int i;
+
+ /* Initialize the stack used to keep track of the matching .bb .be */
+
+ block_stack = stack_init (512, sizeof (symbolS *));
+
+ /* The symbol list should be ordered according to the following sequence
+ * order :
+ * . .file symbol
+ * . debug entries for functions
+ * . fake symbols for the sections, including.text .data and .bss
+ * . defined symbols
+ * . undefined symbols
+ * But this is not mandatory. The only important point is to put the
+ * undefined symbols at the end of the list.
+ */
+
+ if (symbol_rootP == NULL
+ || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE)
+ {
+ c_dot_file_symbol ("fake");
+ }
+ /* Is there a .file symbol ? If not insert one at the beginning. */
+
+ /*
+ * Build up static symbols for the sections, they are filled in later
+ */
+
+
+ for (i = SEG_E0; i < SEG_LAST; i++)
+ if (segment_info[i].scnhdr.s_name[0])
+ segment_info[i].dot = c_section_symbol (segment_info[i].name,
+ i - SEG_E0 + 1);
+
+ /* Take all the externals out and put them into another chain */
+ H_SET_SYMBOL_TABLE_SIZE (h, yank_symbols ());
+ /* Take the externals and glue them onto the end.*/
+ H_SET_SYMBOL_TABLE_SIZE (h,
+ (H_GET_SYMBOL_COUNT (h)
+ + glue_symbols (&symbol_globalP,
+ &symbol_global_lastP)
+ + glue_symbols (&symbol_externP,
+ &symbol_extern_lastP)));
+
+ H_SET_SYMBOL_TABLE_SIZE (h, tie_tags ());
+ know (symbol_globalP == NULL);
+ know (symbol_global_lastP == NULL);
+ know (symbol_externP == NULL);
+ know (symbol_extern_lastP == NULL);
+}
+
+/*
+ * Find strings by crawling along symbol table chain.
+ */
+
+void
+w_strings (where)
+ char *where;
+{
+ symbolS *symbolP;
+ struct filename_list *filename_list_scan = filename_list_head;
+
+ /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK */
+ md_number_to_chars (where, (valueT) string_byte_count, 4);
+ where += 4;
+
+#ifdef COFF_LONG_SECTION_NAMES
+ /* Support long section names as found in PE. This code must
+ coordinate with that in coff_header_append and write_object_file. */
+ {
+ unsigned int i;
+
+ for (i = SEG_E0; i < SEG_LAST; i++)
+ {
+ if (segment_info[i].scnhdr.s_name[0]
+ && strlen (segment_info[i].name) > SCNNMLEN)
+ {
+ unsigned int size;
+
+ size = strlen (segment_info[i].name) + 1;
+ memcpy (where, segment_info[i].name, size);
+ where += size;
+ }
+ }
+ }
+#endif /* COFF_LONG_SECTION_NAMES */
+
+ for (symbolP = symbol_rootP;
+ symbolP;
+ symbolP = symbol_next (symbolP))
+ {
+ unsigned int size;
+
+ if (SF_GET_STRING (symbolP))
+ {
+ size = strlen (S_GET_NAME (symbolP)) + 1;
+ memcpy (where, S_GET_NAME (symbolP), size);
+ where += size;
+ }
+ if (S_GET_STORAGE_CLASS (symbolP) == C_FILE
+ && SA_GET_FILE_FNAME_ZEROS (symbolP) == 0
+ && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0)
+ {
+ size = strlen (filename_list_scan->filename) + 1;
+ memcpy (where, filename_list_scan->filename, size);
+ filename_list_scan = filename_list_scan ->next;
+ where += size;
+ }
+ }
+}
+
+static void
+do_linenos_for (abfd, h, file_cursor)
+ bfd * abfd;
+ object_headers * h;
+ unsigned long *file_cursor;
+{
+ unsigned int idx;
+ unsigned long start = *file_cursor;
+
+ for (idx = SEG_E0; idx < SEG_LAST; idx++)
+ {
+ segment_info_type *s = segment_info + idx;
+
+
+ if (s->scnhdr.s_nlnno != 0)
+ {
+ struct lineno_list *line_ptr;
+
+ struct external_lineno *buffer =
+ (struct external_lineno *) xmalloc (s->scnhdr.s_nlnno * LINESZ);
+
+ struct external_lineno *dst = buffer;
+
+ /* Run through the table we've built and turn it into its external
+ form, take this chance to remove duplicates */
+
+ for (line_ptr = s->lineno_list_head;
+ line_ptr != (struct lineno_list *) NULL;
+ line_ptr = line_ptr->next)
+ {
+
+ if (line_ptr->line.l_lnno == 0)
+ {
+ /* Turn a pointer to a symbol into the symbols' index */
+ line_ptr->line.l_addr.l_symndx =
+ ((symbolS *) line_ptr->line.l_addr.l_symndx)->sy_number;
+ }
+ else
+ {
+ line_ptr->line.l_addr.l_paddr += ((struct frag *) (line_ptr->frag))->fr_address;
+ }
+
+
+ (void) bfd_coff_swap_lineno_out (abfd, &(line_ptr->line), dst);
+ dst++;
+
+ }
+
+ s->scnhdr.s_lnnoptr = *file_cursor;
+
+ bfd_write (buffer, 1, s->scnhdr.s_nlnno * LINESZ, abfd);
+ free (buffer);
+
+ *file_cursor += s->scnhdr.s_nlnno * LINESZ;
+ }
+ }
+ H_SET_LINENO_SIZE (h, *file_cursor - start);
+}
+
+
+/* Now we run through the list of frag chains in a segment and
+ make all the subsegment frags appear at the end of the
+ list, as if the seg 0 was extra long */
+
+static void
+remove_subsegs ()
+{
+ unsigned int i;
+
+ for (i = SEG_E0; i < SEG_UNKNOWN; i++)
+ {
+ frchainS *head = segment_info[i].frchainP;
+ fragS dummy;
+ fragS *prev_frag = &dummy;
+
+ while (head && head->frch_seg == i)
+ {
+ prev_frag->fr_next = head->frch_root;
+ prev_frag = head->frch_last;
+ head = head->frch_next;
+ }
+ prev_frag->fr_next = 0;
+ }
+}
+
+unsigned long machine;
+int coff_flags;
+extern void
+write_object_file ()
+{
+ int i;
+ const char *name;
+ struct frchain *frchain_ptr;
+
+ object_headers headers;
+ unsigned long file_cursor;
+ bfd *abfd;
+ unsigned int addr;
+ abfd = bfd_openw (out_file_name, TARGET_FORMAT);
+
+
+ if (abfd == 0)
+ {
+ as_perror ("FATAL: Can't create %s", out_file_name);
+ exit (EXIT_FAILURE);
+ }
+ bfd_set_format (abfd, bfd_object);
+ bfd_set_arch_mach (abfd, BFD_ARCH, machine);
+
+ string_byte_count = 4;
+
+ for (frchain_ptr = frchain_root;
+ frchain_ptr != (struct frchain *) NULL;
+ frchain_ptr = frchain_ptr->frch_next)
+ {
+ /* Run through all the sub-segments and align them up. Also
+ close any open frags. We tack a .fill onto the end of the
+ frag chain so that any .align's size can be worked by looking
+ at the next frag. */
+
+ subseg_set (frchain_ptr->frch_seg, frchain_ptr->frch_subseg);
+#ifndef SUB_SEGMENT_ALIGN
+#define SUB_SEGMENT_ALIGN(SEG) 1
+#endif
+#ifdef md_do_align
+ {
+ static char nop = NOP_OPCODE;
+ md_do_align (SUB_SEGMENT_ALIGN (now_seg), &nop, 1, alignment_done);
+ }
+#endif
+ frag_align (SUB_SEGMENT_ALIGN (now_seg), NOP_OPCODE);
+#ifdef md_do_align
+ alignment_done:
+#endif
+ frag_wane (frag_now);
+ frag_now->fr_fix = 0;
+ know (frag_now->fr_next == NULL);
+ }
+
+
+ remove_subsegs ();
+
+
+ for (i = SEG_E0; i < SEG_UNKNOWN; i++)
+ {
+ relax_segment (segment_info[i].frchainP->frch_root, i);
+ }
+
+ H_SET_NUMBER_OF_SECTIONS (&headers, 0);
+
+ /* Find out how big the sections are, and set the addresses. */
+ addr = 0;
+ for (i = SEG_E0; i < SEG_UNKNOWN; i++)
+ {
+ long size;
+
+ segment_info[i].scnhdr.s_paddr = addr;
+ segment_info[i].scnhdr.s_vaddr = addr;
+
+ if (segment_info[i].scnhdr.s_name[0])
+ {
+ H_SET_NUMBER_OF_SECTIONS (&headers,
+ H_GET_NUMBER_OF_SECTIONS (&headers) + 1);
+
+#ifdef COFF_LONG_SECTION_NAMES
+ /* Support long section names as found in PE. This code
+ must coordinate with that in coff_header_append and
+ w_strings. */
+ {
+ unsigned int len;
+
+ len = strlen (segment_info[i].name);
+ if (len > SCNNMLEN)
+ string_byte_count += len + 1;
+ }
+#endif /* COFF_LONG_SECTION_NAMES */
+ }
+
+ size = size_section (abfd, (unsigned int) i);
+ addr += size;
+
+ /* I think the section alignment is only used on the i960; the
+ i960 needs it, and it should do no harm on other targets. */
+ segment_info[i].scnhdr.s_align = 1 << section_alignment[i];
+
+ if (i == SEG_E0)
+ H_SET_TEXT_SIZE (&headers, size);
+ else if (i == SEG_E1)
+ H_SET_DATA_SIZE (&headers, size);
+ else if (i == SEG_E2)
+ H_SET_BSS_SIZE (&headers, size);
+ }
+
+ /* Turn the gas native symbol table shape into a coff symbol table */
+ crawl_symbols (&headers, abfd);
+
+ if (string_byte_count == 4)
+ string_byte_count = 0;
+
+ H_SET_STRING_SIZE (&headers, string_byte_count);
+
+#ifdef tc_frob_file
+ tc_frob_file ();
+#endif
+
+ for (i = SEG_E0; i < SEG_UNKNOWN; i++)
+ {
+ fixup_mdeps (segment_info[i].frchainP->frch_root, &headers, i);
+ fixup_segment (&segment_info[i], i);
+ }
+
+ /* Look for ".stab" segments and fill in their initial symbols
+ correctly. */
+ for (i = SEG_E0; i < SEG_UNKNOWN; i++)
+ {
+ name = segment_info[i].name;
+
+ if (name != NULL
+ && strncmp (".stab", name, 5) == 0
+ && strncmp (".stabstr", name, 8) != 0)
+ adjust_stab_section (abfd, i);
+ }
+
+ file_cursor = H_GET_TEXT_FILE_OFFSET (&headers);
+
+ bfd_seek (abfd, (file_ptr) file_cursor, 0);
+
+ /* Plant the data */
+
+ fill_section (abfd, &headers, &file_cursor);
+
+ do_relocs_for (abfd, &headers, &file_cursor);
+
+ do_linenos_for (abfd, &headers, &file_cursor);
+
+ H_SET_FILE_MAGIC_NUMBER (&headers, COFF_MAGIC);
+#ifndef OBJ_COFF_OMIT_TIMESTAMP
+ H_SET_TIME_STAMP (&headers, (long)time((time_t *)0));
+#else
+ H_SET_TIME_STAMP (&headers, 0);
+#endif
+#ifdef TC_COFF_SET_MACHINE
+ TC_COFF_SET_MACHINE (&headers);
+#endif
+
+#ifndef COFF_FLAGS
+#define COFF_FLAGS 0
+#endif
+
+#ifdef KEEP_RELOC_INFO
+ H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) |
+ COFF_FLAGS | coff_flags));
+#else
+ H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) |
+ (H_GET_RELOCATION_SIZE(&headers) ? 0 : F_RELFLG) |
+ COFF_FLAGS | coff_flags));
+#endif
+
+ {
+ unsigned int symtable_size = H_GET_SYMBOL_TABLE_SIZE (&headers);
+ char *buffer1 = xmalloc (symtable_size + string_byte_count + 1);
+
+ H_SET_SYMBOL_TABLE_POINTER (&headers, bfd_tell (abfd));
+ w_symbols (abfd, buffer1, symbol_rootP);
+ if (string_byte_count > 0)
+ w_strings (buffer1 + symtable_size);
+ bfd_write (buffer1, 1, symtable_size + string_byte_count, abfd);
+ free (buffer1);
+ }
+
+ coff_header_append (abfd, &headers);
+#if 0
+ /* Recent changes to write need this, but where it should
+ go is up to Ken.. */
+ if (bfd_close_all_done (abfd) == false)
+ as_fatal ("Can't close %s: %s", out_file_name,
+ bfd_errmsg (bfd_get_error ()));
+#else
+ {
+ extern bfd *stdoutput;
+ stdoutput = abfd;
+ }
+#endif
+
+}
+
+/* Add a new segment. This is called from subseg_new via the
+ obj_new_segment macro. */
+
+segT
+obj_coff_add_segment (name)
+ const char *name;
+{
+ unsigned int i;
+
+#ifndef COFF_LONG_SECTION_NAMES
+ char buf[SCNNMLEN + 1];
+
+ strncpy (buf, name, SCNNMLEN);
+ buf[SCNNMLEN] = '\0';
+ name = buf;
+#endif
+
+ for (i = SEG_E0; i < SEG_LAST && segment_info[i].scnhdr.s_name[0]; i++)
+ if (strcmp (name, segment_info[i].name) == 0)
+ return (segT) i;
+
+ if (i == SEG_LAST)
+ {
+ as_bad ("Too many new sections; can't add \"%s\"", name);
+ return now_seg;
+ }
+
+ /* Add a new section. */
+ strncpy (segment_info[i].scnhdr.s_name, name,
+ sizeof (segment_info[i].scnhdr.s_name));
+ segment_info[i].scnhdr.s_flags = STYP_REG;
+ segment_info[i].name = xstrdup (name);
+
+ return (segT) i;
+}
+
+/*
+ * implement the .section pseudo op:
+ * .section name {, "flags"}
+ * ^ ^
+ * | +--- optional flags: 'b' for bss
+ * | 'i' for info
+ * +-- section name 'l' for lib
+ * 'n' for noload
+ * 'o' for over
+ * 'w' for data
+ * 'd' (apparently m88k for data)
+ * 'x' for text
+ * But if the argument is not a quoted string, treat it as a
+ * subsegment number.
+ */
+
+void
+obj_coff_section (ignore)
+ int ignore;
+{
+ /* Strip out the section name */
+ char *section_name, *name;
+ char c;
+ unsigned int exp;
+ long flags;
+
+ if (flag_mri)
+ {
+ char type;
+
+ s_mri_sect (&type);
+ flags = 0;
+ if (type == 'C')
+ flags = STYP_TEXT;
+ else if (type == 'D')
+ flags = STYP_DATA;
+ segment_info[now_seg].scnhdr.s_flags |= flags;
+
+ return;
+ }
+
+ section_name = input_line_pointer;
+ c = get_symbol_end ();
+
+ name = xmalloc (input_line_pointer - section_name + 1);
+ strcpy (name, section_name);
+
+ *input_line_pointer = c;
+
+ exp = 0;
+ flags = 0;
+
+ SKIP_WHITESPACE ();
+ if (*input_line_pointer == ',')
+ {
+ ++input_line_pointer;
+ SKIP_WHITESPACE ();
+
+ if (*input_line_pointer != '"')
+ exp = get_absolute_expression ();
+ else
+ {
+ ++input_line_pointer;
+ while (*input_line_pointer != '"'
+ && ! is_end_of_line[(unsigned char) *input_line_pointer])
+ {
+ switch (*input_line_pointer)
+ {
+ case 'b': flags |= STYP_BSS; break;
+ case 'i': flags |= STYP_INFO; break;
+ case 'l': flags |= STYP_LIB; break;
+ case 'n': flags |= STYP_NOLOAD; break;
+ case 'o': flags |= STYP_OVER; break;
+ case 'd':
+ case 'w': flags |= STYP_DATA; break;
+ case 'x': flags |= STYP_TEXT; break;
+ default:
+ as_warn("unknown section attribute '%c'",
+ *input_line_pointer);
+ break;
+ }
+ ++input_line_pointer;
+ }
+ if (*input_line_pointer == '"')
+ ++input_line_pointer;
+ }
+ }
+
+ subseg_new (name, (subsegT) exp);
+
+ segment_info[now_seg].scnhdr.s_flags |= flags;
+
+ demand_empty_rest_of_line ();
+}
+
+
+static void
+obj_coff_text (ignore)
+ int ignore;
+{
+ subseg_new (".text", get_absolute_expression ());
+}
+
+
+static void
+obj_coff_data (ignore)
+ int ignore;
+{
+ if (flag_readonly_data_in_text)
+ subseg_new (".text", get_absolute_expression () + 1000);
+ else
+ subseg_new (".data", get_absolute_expression ());
+}
+
+static void
+obj_coff_bss (ignore)
+ int ignore;
+{
+ if (*input_line_pointer == '\n') /* .bss */
+ subseg_new(".bss", get_absolute_expression());
+ else /* .bss id,expr */
+ obj_coff_lcomm(0);
+}
+
+static void
+obj_coff_ident (ignore)
+ int ignore;
+{
+ segT current_seg = now_seg; /* save current seg */
+ subsegT current_subseg = now_subseg;
+ subseg_new (".comment", 0); /* .comment seg */
+ stringer (1); /* read string */
+ subseg_set (current_seg, current_subseg); /* restore current seg */
+}
+
+void
+c_symbol_merge (debug, normal)
+ symbolS *debug;
+ symbolS *normal;
+{
+ S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug));
+ S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug));
+
+ if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal))
+ {
+ S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug));
+ } /* take the most we have */
+
+ if (S_GET_NUMBER_AUXILIARY (debug) > 0)
+ {
+ memcpy ((char *) &normal->sy_symbol.ost_auxent[0],
+ (char *) &debug->sy_symbol.ost_auxent[0],
+ (unsigned int) (S_GET_NUMBER_AUXILIARY (debug) * AUXESZ));
+ } /* Move all the auxiliary information */
+
+ /* Move the debug flags. */
+ SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug));
+} /* c_symbol_merge() */
+
+static int
+c_line_new (symbol, paddr, line_number, frag)
+ symbolS * symbol;
+ long paddr;
+ int line_number;
+ fragS * frag;
+{
+ struct lineno_list *new_line =
+ (struct lineno_list *) xmalloc (sizeof (struct lineno_list));
+
+ segment_info_type *s = segment_info + now_seg;
+ new_line->line.l_lnno = line_number;
+
+ if (line_number == 0)
+ {
+ last_line_symbol = symbol;
+ new_line->line.l_addr.l_symndx = (long) symbol;
+ }
+ else
+ {
+ new_line->line.l_addr.l_paddr = paddr;
+ }
+
+ new_line->frag = (char *) frag;
+ new_line->next = (struct lineno_list *) NULL;
+
+
+ if (s->lineno_list_head == (struct lineno_list *) NULL)
+ {
+ s->lineno_list_head = new_line;
+ }
+ else
+ {
+ s->lineno_list_tail->next = new_line;
+ }
+ s->lineno_list_tail = new_line;
+ return LINESZ * s->scnhdr.s_nlnno++;
+}
+
+void
+c_dot_file_symbol (filename)
+ char *filename;
+{
+ symbolS *symbolP;
+
+ symbolP = symbol_new (".file",
+ SEG_DEBUG,
+ 0,
+ &zero_address_frag);
+
+ S_SET_STORAGE_CLASS (symbolP, C_FILE);
+ S_SET_NUMBER_AUXILIARY (symbolP, 1);
+
+ if (strlen (filename) > FILNMLEN)
+ {
+ /* Filename is too long to fit into an auxent,
+ we stick it into the string table instead. We keep
+ a linked list of the filenames we find so we can emit
+ them later.*/
+ struct filename_list *f = ((struct filename_list *)
+ xmalloc (sizeof (struct filename_list)));
+
+ f->filename = filename;
+ f->next = 0;
+
+ SA_SET_FILE_FNAME_ZEROS (symbolP, 0);
+ SA_SET_FILE_FNAME_OFFSET (symbolP, 1);
+
+ if (filename_list_tail)
+ filename_list_tail->next = f;
+ else
+ filename_list_head = f;
+ filename_list_tail = f;
+ }
+ else
+ {
+ SA_SET_FILE_FNAME (symbolP, filename);
+ }
+#ifndef NO_LISTING
+ {
+ extern int listing;
+ if (listing)
+ {
+ listing_source_file (filename);
+ }
+
+ }
+
+#endif
+ SF_SET_DEBUG (symbolP);
+ S_SET_VALUE (symbolP, (valueT) previous_file_symbol);
+
+ previous_file_symbol = symbolP;
+
+ /* Make sure that the symbol is first on the symbol chain */
+ if (symbol_rootP != symbolP)
+ {
+ if (symbolP == symbol_lastP)
+ {
+ symbol_lastP = symbol_lastP->sy_previous;
+ } /* if it was the last thing on the list */
+
+ symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
+ symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP);
+ symbol_rootP = symbolP;
+ } /* if not first on the list */
+
+} /* c_dot_file_symbol() */
+
+/*
+ * Build a 'section static' symbol.
+ */
+
+symbolS *
+c_section_symbol (name, idx)
+ char *name;
+ int idx;
+{
+ symbolS *symbolP;
+
+ symbolP = symbol_new (name, idx,
+ 0,
+ &zero_address_frag);
+
+ S_SET_STORAGE_CLASS (symbolP, C_STAT);
+ S_SET_NUMBER_AUXILIARY (symbolP, 1);
+
+ SF_SET_STATICS (symbolP);
+
+#ifdef TE_PE
+ /* If the .linkonce pseudo-op was used for this section, we must
+ store the information in the auxiliary entry for the section
+ symbol. */
+ if (segment_info[idx].linkonce != LINKONCE_UNSET)
+ {
+ int type;
+
+ switch (segment_info[idx].linkonce)
+ {
+ default:
+ abort ();
+ case LINKONCE_DISCARD:
+ type = IMAGE_COMDAT_SELECT_ANY;
+ break;
+ case LINKONCE_ONE_ONLY:
+ type = IMAGE_COMDAT_SELECT_NODUPLICATES;
+ break;
+ case LINKONCE_SAME_SIZE:
+ type = IMAGE_COMDAT_SELECT_SAME_SIZE;
+ break;
+ case LINKONCE_SAME_CONTENTS:
+ type = IMAGE_COMDAT_SELECT_EXACT_MATCH;
+ break;
+ }
+
+ SYM_AUXENT (symbolP)->x_scn.x_comdat = type;
+ }
+#endif /* TE_PE */
+
+ return symbolP;
+} /* c_section_symbol() */
+
+static void
+w_symbols (abfd, where, symbol_rootP)
+ bfd * abfd;
+ char *where;
+ symbolS * symbol_rootP;
+{
+ symbolS *symbolP;
+ unsigned int i;
+
+ /* First fill in those values we have only just worked out */
+ for (i = SEG_E0; i < SEG_LAST; i++)
+ {
+ symbolP = segment_info[i].dot;
+ if (symbolP)
+ {
+ SA_SET_SCN_SCNLEN (symbolP, segment_info[i].scnhdr.s_size);
+ SA_SET_SCN_NRELOC (symbolP, segment_info[i].scnhdr.s_nreloc);
+ SA_SET_SCN_NLINNO (symbolP, segment_info[i].scnhdr.s_nlnno);
+ }
+ }
+
+ /*
+ * Emit all symbols left in the symbol chain.
+ */
+ for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
+ {
+ /* Used to save the offset of the name. It is used to point
+ to the string in memory but must be a file offset. */
+ register char *temp;
+
+ /* We can't fix the lnnoptr field in yank_symbols with the other
+ adjustments, because we have to wait until we know where they
+ go in the file. */
+ if (SF_GET_ADJ_LNNOPTR (symbolP))
+ {
+ SA_GET_SYM_LNNOPTR (symbolP) +=
+ segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_lnnoptr;
+ }
+
+ tc_coff_symbol_emit_hook (symbolP);
+
+ temp = S_GET_NAME (symbolP);
+ if (SF_GET_STRING (symbolP))
+ {
+ S_SET_OFFSET (symbolP, symbolP->sy_name_offset);
+ S_SET_ZEROES (symbolP, 0);
+ }
+ else
+ {
+ memset (symbolP->sy_symbol.ost_entry.n_name, 0, SYMNMLEN);
+ strncpy (symbolP->sy_symbol.ost_entry.n_name, temp, SYMNMLEN);
+ }
+ where = symbol_to_chars (abfd, where, symbolP);
+ S_SET_NAME (symbolP, temp);
+ }
+
+} /* w_symbols() */
+
+static void
+obj_coff_lcomm (ignore)
+ int ignore;
+{
+ s_lcomm(0);
+ return;
+#if 0
+ char *name;
+ char c;
+ int temp;
+ char *p;
+
+ symbolS *symbolP;
+
+ name = input_line_pointer;
+
+ c = get_symbol_end ();
+ p = input_line_pointer;
+ *p = c;
+ SKIP_WHITESPACE ();
+ if (*input_line_pointer != ',')
+ {
+ as_bad ("Expected comma after name");
+ ignore_rest_of_line ();
+ return;
+ }
+ if (*input_line_pointer == '\n')
+ {
+ as_bad ("Missing size expression");
+ return;
+ }
+ input_line_pointer++;
+ if ((temp = get_absolute_expression ()) < 0)
+ {
+ as_warn ("lcomm length (%d.) <0! Ignored.", temp);
+ ignore_rest_of_line ();
+ return;
+ }
+ *p = 0;
+
+ symbolP = symbol_find_or_make(name);
+
+ if (S_GET_SEGMENT(symbolP) == SEG_UNKNOWN &&
+ S_GET_VALUE(symbolP) == 0)
+ {
+ if (! need_pass_2)
+ {
+ char *p;
+ segT current_seg = now_seg; /* save current seg */
+ subsegT current_subseg = now_subseg;
+
+ subseg_set (SEG_E2, 1);
+ symbolP->sy_frag = frag_now;
+ p = frag_var(rs_org, 1, 1, (relax_substateT)0, symbolP,
+ temp, (char *)0);
+ *p = 0;
+ subseg_set (current_seg, current_subseg); /* restore current seg */
+ S_SET_SEGMENT(symbolP, SEG_E2);
+ S_SET_STORAGE_CLASS(symbolP, C_STAT);
+ }
+ }
+ else
+ as_bad("Symbol %s already defined", name);
+
+ demand_empty_rest_of_line();
+#endif
+}
+
+static void
+fixup_mdeps (frags, h, this_segment)
+ fragS * frags;
+ object_headers * h;
+ segT this_segment;
+{
+ subseg_change (this_segment, 0);
+ while (frags)
+ {
+ switch (frags->fr_type)
+ {
+ case rs_align:
+ case rs_align_code:
+ case rs_org:
+#ifdef HANDLE_ALIGN
+ HANDLE_ALIGN (frags);
+#endif
+ frags->fr_type = rs_fill;
+ frags->fr_offset =
+ ((frags->fr_next->fr_address - frags->fr_address - frags->fr_fix)
+ / frags->fr_var);
+ break;
+ case rs_machine_dependent:
+ md_convert_frag (h, this_segment, frags);
+ frag_wane (frags);
+ break;
+ default:
+ ;
+ }
+ frags = frags->fr_next;
+ }
+}
+
+#if 1
+
+#ifndef TC_FORCE_RELOCATION
+#define TC_FORCE_RELOCATION(fix) 0
+#endif
+
+static void
+fixup_segment (segP, this_segment_type)
+ segment_info_type * segP;
+ segT this_segment_type;
+{
+ register fixS * fixP;
+ register symbolS *add_symbolP;
+ register symbolS *sub_symbolP;
+ long add_number;
+ register int size;
+ register char *place;
+ register long where;
+ register char pcrel;
+ register fragS *fragP;
+ register segT add_symbol_segment = absolute_section;
+
+ if (linkrelax)
+ return;
+
+ for (fixP = segP->fix_root; fixP; fixP = fixP->fx_next)
+ {
+ fragP = fixP->fx_frag;
+ know (fragP);
+ where = fixP->fx_where;
+ place = fragP->fr_literal + where;
+ size = fixP->fx_size;
+ add_symbolP = fixP->fx_addsy;
+#ifdef TC_I960
+ if (fixP->fx_tcbit && SF_GET_CALLNAME (add_symbolP))
+ {
+ /* Relocation should be done via the associated 'bal' entry
+ point symbol. */
+
+ if (!SF_GET_BALNAME (tc_get_bal_of_call (add_symbolP)))
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ "No 'bal' entry point for leafproc %s",
+ S_GET_NAME (add_symbolP));
+ continue;
+ }
+ fixP->fx_addsy = add_symbolP = tc_get_bal_of_call (add_symbolP);
+ }
+#endif
+ sub_symbolP = fixP->fx_subsy;
+ add_number = fixP->fx_offset;
+ pcrel = fixP->fx_pcrel;
+
+ if (add_symbolP != NULL
+ && add_symbolP->sy_mri_common)
+ {
+ know (add_symbolP->sy_value.X_op == O_symbol);
+ add_number += S_GET_VALUE (add_symbolP);
+ fixP->fx_offset = add_number;
+ add_symbolP = fixP->fx_addsy = add_symbolP->sy_value.X_add_symbol;
+ }
+
+ if (add_symbolP)
+ {
+ add_symbol_segment = S_GET_SEGMENT (add_symbolP);
+ } /* if there is an addend */
+
+ if (sub_symbolP)
+ {
+ if (add_symbolP == NULL || add_symbol_segment == absolute_section)
+ {
+ if (add_symbolP != NULL)
+ {
+ add_number += S_GET_VALUE (add_symbolP);
+ add_symbolP = NULL;
+ fixP->fx_addsy = NULL;
+ }
+
+ /* It's just -sym. */
+ if (S_GET_SEGMENT (sub_symbolP) == absolute_section)
+ {
+ add_number -= S_GET_VALUE (sub_symbolP);
+ fixP->fx_subsy = 0;
+ fixP->fx_done = 1;
+ }
+ else
+ {
+#ifndef TC_M68K
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ "Negative of non-absolute symbol %s",
+ S_GET_NAME (sub_symbolP));
+#endif
+ add_number -= S_GET_VALUE (sub_symbolP);
+ } /* not absolute */
+
+ /* if sub_symbol is in the same segment that add_symbol
+ and add_symbol is either in DATA, TEXT, BSS or ABSOLUTE */
+ }
+ else if (S_GET_SEGMENT (sub_symbolP) == add_symbol_segment
+ && SEG_NORMAL (add_symbol_segment))
+ {
+ /* Difference of 2 symbols from same segment. Can't
+ make difference of 2 undefineds: 'value' means
+ something different for N_UNDF. */
+#ifdef TC_I960
+ /* Makes no sense to use the difference of 2 arbitrary symbols
+ as the target of a call instruction. */
+ if (fixP->fx_tcbit)
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ "callj to difference of 2 symbols");
+ }
+#endif /* TC_I960 */
+ add_number += S_GET_VALUE (add_symbolP) -
+ S_GET_VALUE (sub_symbolP);
+ add_symbolP = NULL;
+
+ if (!TC_FORCE_RELOCATION (fixP))
+ {
+ fixP->fx_addsy = NULL;
+ fixP->fx_subsy = NULL;
+ fixP->fx_done = 1;
+#ifdef TC_M68K /* is this right? */
+ pcrel = 0;
+ fixP->fx_pcrel = 0;
+#endif
+ }
+ }
+ else
+ {
+ /* Different segments in subtraction. */
+ know (!(S_IS_EXTERNAL (sub_symbolP) && (S_GET_SEGMENT (sub_symbolP) == absolute_section)));
+
+ if ((S_GET_SEGMENT (sub_symbolP) == absolute_section))
+ {
+ add_number -= S_GET_VALUE (sub_symbolP);
+ }
+#ifdef DIFF_EXPR_OK
+ else if (S_GET_SEGMENT (sub_symbolP) == this_segment_type
+#if 0 /* Okay for 68k, at least... */
+ && !pcrel
+#endif
+ )
+ {
+ /* Make it pc-relative. */
+ add_number += (md_pcrel_from (fixP)
+ - S_GET_VALUE (sub_symbolP));
+ pcrel = 1;
+ fixP->fx_pcrel = 1;
+ sub_symbolP = 0;
+ fixP->fx_subsy = 0;
+ }
+#endif
+ else
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ "Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %ld.",
+ segment_name (S_GET_SEGMENT (sub_symbolP)),
+ S_GET_NAME (sub_symbolP),
+ (long) (fragP->fr_address + where));
+ } /* if absolute */
+ }
+ } /* if sub_symbolP */
+
+ if (add_symbolP)
+ {
+ if (add_symbol_segment == this_segment_type && pcrel)
+ {
+ /*
+ * This fixup was made when the symbol's segment was
+ * SEG_UNKNOWN, but it is now in the local segment.
+ * So we know how to do the address without relocation.
+ */
+#ifdef TC_I960
+ /* reloc_callj() may replace a 'call' with a 'calls' or a 'bal',
+ * in which cases it modifies *fixP as appropriate. In the case
+ * of a 'calls', no further work is required, and *fixP has been
+ * set up to make the rest of the code below a no-op.
+ */
+ reloc_callj (fixP);
+#endif /* TC_I960 */
+
+ add_number += S_GET_VALUE (add_symbolP);
+ add_number -= md_pcrel_from (fixP);
+#if defined (TC_I386) || defined (TE_LYNX)
+ /* On the 386 we must adjust by the segment
+ vaddr as well. Ian Taylor. */
+ add_number -= segP->scnhdr.s_vaddr;
+#endif
+ pcrel = 0; /* Lie. Don't want further pcrel processing. */
+ if (!TC_FORCE_RELOCATION (fixP))
+ {
+ fixP->fx_addsy = NULL;
+ fixP->fx_done = 1;
+ }
+ }
+ else
+ {
+ switch (add_symbol_segment)
+ {
+ case absolute_section:
+#ifdef TC_I960
+ reloc_callj (fixP); /* See comment about reloc_callj() above*/
+#endif /* TC_I960 */
+ add_number += S_GET_VALUE (add_symbolP);
+ add_symbolP = NULL;
+
+ if (!TC_FORCE_RELOCATION (fixP))
+ {
+ fixP->fx_addsy = NULL;
+ fixP->fx_done = 1;
+ }
+ break;
+ default:
+
+
+#if defined(TC_A29K) || (defined(TE_PE) && defined(TC_I386)) || defined(TC_M88K)
+ /* This really should be handled in the linker, but
+ backward compatibility forbids. */
+ add_number += S_GET_VALUE (add_symbolP);
+#else
+ add_number += S_GET_VALUE (add_symbolP) +
+ segment_info[S_GET_SEGMENT (add_symbolP)].scnhdr.s_paddr;
+#endif
+ break;
+
+ case SEG_UNKNOWN:
+#ifdef TC_I960
+ if ((int) fixP->fx_bit_fixP == 13)
+ {
+ /* This is a COBR instruction. They have only a
+ * 13-bit displacement and are only to be used
+ * for local branches: flag as error, don't generate
+ * relocation.
+ */
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ "can't use COBR format with external label");
+ fixP->fx_addsy = NULL;
+ fixP->fx_done = 1;
+ continue;
+ } /* COBR */
+#endif /* TC_I960 */
+#if (defined (TC_I386) || defined (TE_LYNX) || defined (TE_AUX)) && !defined(TE_PE)
+ /* 386 COFF uses a peculiar format in which the
+ value of a common symbol is stored in the .text
+ segment (I've checked this on SVR3.2 and SCO
+ 3.2.2) Ian Taylor <ian@cygnus.com>. */
+ if (S_IS_COMMON (add_symbolP))
+ add_number += S_GET_VALUE (add_symbolP);
+#endif
+ break;
+
+
+ } /* switch on symbol seg */
+ } /* if not in local seg */
+ } /* if there was a + symbol */
+
+ if (pcrel)
+ {
+#if !defined(TC_M88K) && !(defined(TE_PE) && defined(TC_I386)) && !defined(TC_A29K)
+ /* This adjustment is not correct on the m88k, for which the
+ linker does all the computation. */
+ add_number -= md_pcrel_from (fixP);
+#endif
+ if (add_symbolP == 0)
+ {
+ fixP->fx_addsy = &abs_symbol;
+ } /* if there's an add_symbol */
+#if defined (TC_I386) || defined (TE_LYNX)
+ /* On the 386 we must adjust by the segment vaddr
+ as well. Ian Taylor. */
+ add_number -= segP->scnhdr.s_vaddr;
+#endif
+ } /* if pcrel */
+
+ if (!fixP->fx_bit_fixP)
+ {
+#ifndef TC_M88K
+ /* The m88k uses the offset field of the reloc to get around
+ this problem. */
+ if ((size == 1
+ && (add_number & ~0xFF)
+ && ((add_number & ~0xFF) != (-1 & ~0xFF)))
+ || (size == 2
+ && (add_number & ~0xFFFF)
+ && ((add_number & ~0xFFFF) != (-1 & ~0xFFFF))))
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ "Value of %ld too large for field of %d bytes at 0x%lx",
+ (long) add_number, size,
+ (unsigned long) (fragP->fr_address + where));
+ }
+#endif
+#ifdef WARN_SIGNED_OVERFLOW_WORD
+ /* Warn if a .word value is too large when treated as a
+ signed number. We already know it is not too negative.
+ This is to catch over-large switches generated by gcc on
+ the 68k. */
+ if (!flag_signed_overflow_ok
+ && size == 2
+ && add_number > 0x7fff)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ "Signed .word overflow; switch may be too large; %ld at 0x%lx",
+ (long) add_number,
+ (unsigned long) (fragP->fr_address + where));
+#endif
+ } /* not a bit fix */
+ /* Once this fix has been applied, we don't have to output
+ anything nothing more need be done. */
+#ifdef MD_APPLY_FIX3
+ md_apply_fix3 (fixP, &add_number, this_segment_type);
+#else
+ md_apply_fix (fixP, add_number);
+#endif
+ } /* For each fixS in this segment. */
+} /* fixup_segment() */
+
+#endif
+
+/* The first entry in a .stab section is special. */
+
+void
+obj_coff_init_stab_section (seg)
+ segT seg;
+{
+ char *file;
+ char *p;
+ char *stabstr_name;
+ unsigned int stroff;
+
+ /* Make space for this first symbol. */
+ p = frag_more (12);
+ /* Zero it out. */
+ memset (p, 0, 12);
+ as_where (&file, (unsigned int *) NULL);
+ stabstr_name = (char *) alloca (strlen (segment_info[seg].name) + 4);
+ strcpy (stabstr_name, segment_info[seg].name);
+ strcat (stabstr_name, "str");
+ stroff = get_stab_string_offset (file, stabstr_name);
+ know (stroff == 1);
+ md_number_to_chars (p, stroff, 4);
+}
+
+/* Fill in the counts in the first entry in a .stab section. */
+
+static void
+adjust_stab_section(abfd, seg)
+ bfd *abfd;
+ segT seg;
+{
+ segT stabstrseg = SEG_UNKNOWN;
+ const char *secname, *name2;
+ char *name;
+ char *p = NULL;
+ int i, strsz = 0, nsyms;
+ fragS *frag = segment_info[seg].frchainP->frch_root;
+
+ /* Look for the associated string table section. */
+
+ secname = segment_info[seg].name;
+ name = (char *) alloca (strlen (secname) + 4);
+ strcpy (name, secname);
+ strcat (name, "str");
+
+ for (i = SEG_E0; i < SEG_UNKNOWN; i++)
+ {
+ name2 = segment_info[i].name;
+ if (name2 != NULL && strncmp(name2, name, 8) == 0)
+ {
+ stabstrseg = i;
+ break;
+ }
+ }
+
+ /* If we found the section, get its size. */
+ if (stabstrseg != SEG_UNKNOWN)
+ strsz = size_section (abfd, stabstrseg);
+
+ nsyms = size_section (abfd, seg) / 12 - 1;
+
+ /* Look for the first frag of sufficient size for the initial stab
+ symbol, and collect a pointer to it. */
+ while (frag && frag->fr_fix < 12)
+ frag = frag->fr_next;
+ assert (frag != 0);
+ p = frag->fr_literal;
+ assert (p != 0);
+
+ /* Write in the number of stab symbols and the size of the string
+ table. */
+ bfd_h_put_16 (abfd, (bfd_vma) nsyms, (bfd_byte *) p + 6);
+ bfd_h_put_32 (abfd, (bfd_vma) strsz, (bfd_byte *) p + 8);
+}
+
+#endif /* not BFD_ASSEMBLER */
+
+const pseudo_typeS obj_pseudo_table[] =
+{
+ {"def", obj_coff_def, 0},
+ {"dim", obj_coff_dim, 0},
+ {"endef", obj_coff_endef, 0},
+ {"line", obj_coff_line, 0},
+ {"ln", obj_coff_ln, 0},
+ {"appline", obj_coff_ln, 1},
+ {"scl", obj_coff_scl, 0},
+ {"size", obj_coff_size, 0},
+ {"tag", obj_coff_tag, 0},
+ {"type", obj_coff_type, 0},
+ {"val", obj_coff_val, 0},
+ {"section", obj_coff_section, 0},
+ {"sect", obj_coff_section, 0},
+ /* FIXME: We ignore the MRI short attribute. */
+ {"section.s", obj_coff_section, 0},
+ {"sect.s", obj_coff_section, 0},
+#ifndef BFD_ASSEMBLER
+ {"use", obj_coff_section, 0},
+ {"text", obj_coff_text, 0},
+ {"data", obj_coff_data, 0},
+ {"bss", obj_coff_bss, 0},
+ {"lcomm", obj_coff_lcomm, 0},
+ {"ident", obj_coff_ident, 0},
+#else
+ {"optim", s_ignore, 0}, /* For sun386i cc (?) */
+ {"ident", s_ignore, 0}, /* we don't yet handle this. */
+#endif
+ {"ABORT", s_abort, 0},
+#ifdef TC_M88K
+ /* The m88k uses sdef instead of def. */
+ {"sdef", obj_coff_def, 0},
+#endif
+ {NULL} /* end sentinel */
+}; /* obj_pseudo_table */
projects / deliverable / binutils-gdb.git / blobdiff