#include "obstack.h"
#include "subsegs.h"
+#ifdef BFD_ASSEMBLER
+
static symbolS *tag_find_or_make PARAMS ((char *name));
static symbolS *tag_find PARAMS ((char *name));
static void tag_init PARAMS ((void));
}
void
-coff_frob_file ()
+coff_adjust_symtab ()
{
if (symbol_rootP == NULL
|| S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE)
#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 "../bfd/libbfd.h"
+#include "../bfd/libcoff.h"
+
+/* 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
+
+#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,
+ 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 = NULL;
+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 symbolS *tag_find_or_make PARAMS ((char *name));
+static symbolS *tag_find PARAMS ((char *name));
+static void tag_init PARAMS ((void));
+static void tag_insert PARAMS ((char *name, symbolS * symbolP));
+char *s_get_name PARAMS ((symbolS * s));
+
+static int c_line_new PARAMS ((symbolS * symbol, long paddr,
+ unsigned short 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 struct hash_control *tag_hash;
+
+static symbolS *def_symbol_in_progress = NULL;
+
+static void obj_coff_def PARAMS ((int));
+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 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));
+
+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},
+ {"use", obj_coff_section, 0},
+ {"sect", obj_coff_section, 0},
+ {"text", obj_coff_text, 0},
+ {"data", obj_coff_data, 0},
+ {"bss", obj_coff_bss, 0},
+ {"ident", obj_coff_ident, 0},
+ {"ABORT", s_abort, 0},
+ {"lcomm", obj_coff_lcomm, 0},
+#ifdef TC_M88K
+ /* The m88k uses sdef instead of def. */
+ {"sdef", obj_coff_def, 0},
+#endif
+ {NULL} /* end sentinel */
+}; /* obj_pseudo_table */
+\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;
+}
+
+static void
+stack_delete (st)
+ stack *st;
+{
+ free (st->data);
+ free (st);
+}
+
+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 void
+tag_init ()
+{
+ tag_hash = hash_new ();
+}
+
+static void
+tag_insert (name, symbolP)
+ 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);
+ } /* 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);
+}
+\f
+/* Section stuff
+
+ We allow more than just the standard 3 sections, infact, we allow
+ 10 sections, (though the usual three have to be there).
+
+ This structure performs the mappings for us:
+
+*/
+
+#define N_SEG 32
+typedef struct
+{
+ segT seg_t;
+ int i;
+} seg_info_type;
+
+seg_info_type seg_info_off_by_4[N_SEG] =
+{
+ {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},
+ {(segT)15},
+ {(segT)16},
+ {(segT)17},
+ {(segT)18},
+ {(segT)19},
+ {(segT)20},
+ {(segT)0},
+ {(segT)0},
+ {(segT)0},
+ {SEG_REGISTER}
+};
+
+
+
+#define SEG_INFO_FROM_SECTION_NUMBER(x) (seg_info_off_by_4[(x)+4])
+#define SEG_INFO_FROM_SEG_NUMBER(x) (seg_info_off_by_4[(x)])
+
+
+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);
+} /* relax_align() */
+
+
+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)
+ {
+ printf ("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_fill:
+ case rs_org:
+ size += frag->fr_fix;
+ size += frag->fr_offset * frag->fr_var;
+ break;
+ case rs_align:
+ 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;
+}
+
+/* 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_E9; 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)
+ {
+ symbolS *symbol_ptr;
+ struct internal_reloc intr;
+
+ /* Only output some of the relocations */
+ if (TC_COUNT_RELOC (fix_ptr))
+ {
+#ifdef TC_RELOC_MANGLE
+ TC_RELOC_MANGLE (fix_ptr, &intr, base);
+
+#else
+ symbolS *dot;
+ 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_M88K
+ intr.r_offset = fix_ptr->fx_offset;
+#else
+ intr.r_offset = 0;
+#endif
+
+ /* 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;
+ }
+
+ /* 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);
+
+ 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_fill:
+ case rs_align:
+ 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_E9; i++)
+ {
+ if (segment_info[i].scnhdr.s_name[0])
+ {
+ unsigned int size =
+ bfd_coff_swap_scnhdr_out (abfd,
+ &(segment_info[i].scnhdr),
+ buffer);
+ 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 */
+
+ c_line_new (0,
+ obstack_next_free (&frags) - frag_now->fr_literal,
+ l = get_absolute_expression (),
+ 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);
+ 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;
+
+ if (def_symbol_in_progress == NULL)
+ {
+ obj_coff_ln (0);
+ return;
+ }
+
+ this_base = get_absolute_expression ();
+ if (this_base > line_base)
+ {
+ line_base = this_base;
+ }
+
+#ifndef NO_LISTING
+ {
+ extern int listing;
+ if (listing && 0)
+ {
+ 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 ();
+}
+
+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 externals */
+symbolS *symbol_externP = NULL;
+symbolS *symbol_extern_lastP = NULL;
+
+stack *block_stack;
+symbolS *last_functionP = NULL;
+symbolS *last_tagP;
+
+static unsigned int
+yank_symbols ()
+{
+ symbolS *symbolP;
+ unsigned int symbol_number = 0;
+ unsigned int last_file_symno = 0;
+
+ for (symbolP = symbol_rootP;
+ symbolP;
+ symbolP = symbolP ? symbol_next (symbolP) : symbol_rootP)
+ {
+ 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)
+ && 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 (flagseen['R'] && (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
+ }
+ /* The C_FCN doesn't need any additional information. I
+ don't even know if this is needed for sdb. But the
+ standard assembler generates it, so... */
+ if (S_GET_STORAGE_CLASS (symbolP) == C_EFCN)
+ {
+ 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 (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 (!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 (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 ()
+{
+ unsigned int symbol_number = 0;
+ symbolS *symbolP;
+ for (symbolP = symbol_externP; symbol_externP;)
+ {
+ symbolS *tmp = symbol_externP;
+
+ /* append */
+ symbol_remove (tmp, &symbol_externP, &symbol_extern_lastP);
+ 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_E9; i++)
+ {
+ if (segment_info[i].scnhdr.s_name[0])
+ {
+ char name[9];
+
+ strncpy (name, segment_info[i].scnhdr.s_name, 8);
+ name[8] = '\0';
+ segment_info[i].dot = c_section_symbol (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 ());
+
+ H_SET_SYMBOL_TABLE_SIZE (h, tie_tags ());
+ 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;
+
+ /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK */
+ md_number_to_chars (where, (valueT) string_byte_count, 4);
+ where += 4;
+ 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;
+
+ }
+ }
+}
+
+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_E9; 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;
+ 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 (42);
+ }
+ 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
+ frag_align (SUB_SEGMENT_ALIGN (now_seg), NOP_OPCODE);
+ 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);
+ }
+
+ size = size_section (abfd, (unsigned int) i);
+ addr += size;
+
+ 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);
+
+#if !defined(TC_H8300) && !defined(TC_Z8K)
+ for (i = SEG_E0; i < SEG_UNKNOWN; i++)
+ {
+ fixup_mdeps (segment_info[i].frchainP->frch_root, &headers, i);
+ fixup_segment (&segment_info[i], i);
+ }
+#endif
+
+ /* Look for ".stab" segments and fill in their initial symbols
+ correctly. */
+ for (i = SEG_E0; i < SEG_UNKNOWN; i++)
+ {
+ name = segment_info[i].scnhdr.s_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((long*)0));
+#else
+ H_SET_TIME_STAMP (&headers, 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 len;
+ unsigned int i;
+
+ /* Find out if we've already got a section of this name. */
+ len = strlen (name);
+ if (len < sizeof (segment_info[i].scnhdr.s_name))
+ ++len;
+ else
+ len = sizeof (segment_info[i].scnhdr.s_name);
+ for (i = SEG_E0; i < SEG_E9 && segment_info[i].scnhdr.s_name[0]; i++)
+ if (strncmp (segment_info[i].scnhdr.s_name, name, len) == 0
+ && (len == sizeof (segment_info[i].scnhdr.s_name)
+ || segment_info[i].scnhdr.s_name[len] == '\0'))
+ return (segT) i;
+
+ if (i == SEG_E9)
+ {
+ 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;
+
+ 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;
+ char *section_name_end;
+ char c;
+ int argp;
+ unsigned int len;
+ unsigned int exp;
+ long flags;
+
+ section_name = input_line_pointer;
+ c = get_symbol_end ();
+ section_name_end = input_line_pointer;
+
+ len = section_name_end - section_name;
+ input_line_pointer++;
+ SKIP_WHITESPACE ();
+
+ argp = 0;
+ if (c == ',')
+ argp = 1;
+ else if (*input_line_pointer == ',')
+ {
+ argp = 1;
+ ++input_line_pointer;
+ SKIP_WHITESPACE ();
+ }
+
+ exp = 0;
+ flags = 0;
+ if (argp)
+ {
+ 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 (section_name, (subsegT) exp);
+
+ segment_info[now_seg].scnhdr.s_flags |= flags;
+
+ *section_name_end = c;
+}
+
+
+static void
+obj_coff_text (ignore)
+ int ignore;
+{
+ subseg_new (".text", get_absolute_expression ());
+}
+
+
+static void
+obj_coff_data (ignore)
+ int ignore;
+{
+ if (flagseen['R'])
+ 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;
+ unsigned short 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);
+ 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);
+
+ 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_E9; 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;
+
+ 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_org:
+ frags->fr_type = rs_fill;
+ frags->fr_offset =
+ (frags->fr_next->fr_address - frags->fr_address - frags->fr_fix);
+ break;
+ case rs_machine_dependent:
+ md_convert_frag (h, frags);
+ frag_wane (frags);
+ break;
+ default:
+ ;
+ }
+ frags = frags->fr_next;
+ }
+}
+
+#if 1
+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;
+ register 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;
+
+
+ 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 && TC_S_IS_CALLNAME (add_symbolP))
+ {
+ /* Relocation should be done via the associated 'bal' entry
+ point symbol. */
+
+ if (!TC_S_IS_BALNAME (tc_get_bal_of_call (add_symbolP)))
+ {
+ as_bad ("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)
+ {
+ add_symbol_segment = S_GET_SEGMENT (add_symbolP);
+ } /* if there is an addend */
+
+ if (sub_symbolP)
+ {
+ if (!add_symbolP)
+ {
+ /* Its just -sym */
+ if (S_GET_SEGMENT (sub_symbolP) != absolute_section)
+ {
+ as_bad ("Negative of non-absolute symbol %s", S_GET_NAME (sub_symbolP));
+ } /* not absolute */
+
+ add_number -= S_GET_VALUE (sub_symbolP);
+ fixP->fx_subsy = 0;
+
+ /* 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)
+ || (add_symbol_segment == absolute_section)))
+ {
+ /* 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 ("callj to difference of 2 symbols");
+ }
+#endif /* TC_I960 */
+ add_number += S_GET_VALUE (add_symbolP) -
+ S_GET_VALUE (sub_symbolP);
+
+ add_symbolP = NULL;
+ fixP->fx_addsy = NULL;
+ fixP->fx_done = 1;
+ }
+ 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 ("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. */
+ 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);
+ fixP->fx_addsy = NULL;
+ fixP->fx_done = 1;
+ add_symbolP = NULL;
+ break;
+ default:
+
+#ifdef TC_A29K
+ /* 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 ("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)
+ /* 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)
+ {
+#ifndef TC_M88K
+ /* 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 ("Value of %ld too large for field of %d bytes at 0x%lx",
+ (long) add_number, size,
+ (unsigned long) (fragP->fr_address + where));
+ } /* generic error checking */
+#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 (!flagseen['J']
+ && size == 2
+ && add_number > 0x7fff)
+ as_bad ("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 -*/
+ md_apply_fix (fixP, add_number);
+ } /* 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].scnhdr.s_name) + 4);
+ strcpy (stabstr_name, segment_info[seg].scnhdr.s_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;
+ char *secname, *name, *name2;
+ 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].scnhdr.s_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].scnhdr.s_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 */
projects / binutils-gdb.git / commitdiff