- /* Null entries in this map are treated specially */
- static struct type **map_bt[] =
- {
- &builtin_type_void, /* btNil */
- 0, /* btAdr */
- &builtin_type_char, /* btChar */
- &builtin_type_unsigned_char,/* btUChar */
- &builtin_type_short, /* btShort */
- &builtin_type_unsigned_short, /* btUShort */
- &builtin_type_int, /* btInt */
- &builtin_type_unsigned_int, /* btUInt */
- &builtin_type_long, /* btLong */
- &builtin_type_unsigned_long,/* btULong */
- &builtin_type_float, /* btFloat */
- &builtin_type_double, /* btDouble */
- 0, /* btStruct */
- 0, /* btUnion */
- 0, /* btEnum */
- 0, /* btTypedef */
- 0, /* btRange */
- 0, /* btSet */
- &builtin_type_complex, /* btComplex */
- &builtin_type_double_complex, /* btDComplex */
- 0, /* btIndirect */
- &builtin_type_fixed_dec, /* btFixedDec */
- &builtin_type_float_dec, /* btFloatDec */
- &builtin_type_string, /* btString */
- 0, /* btBit */
- 0, /* btPicture */
- &builtin_type_void, /* btVoid */
- &builtin_type_long_long, /* btLongLong */
- &builtin_type_unsigned_long_long, /* btULongLong */
- };
-
- TIR t[1];
- struct type *tp = 0;
- char *fmt;
- union aux_ext *tax;
- enum type_code type_code = TYPE_CODE_UNDEF;
-
- /* Use aux as a type information record, map its basic type. */
- tax = ax;
- ecoff_swap_tir_in (bigend, &tax->a_ti, t);
- if (t->bt > (sizeof (map_bt) / sizeof (*map_bt)))
- {
- complain (&basic_type_complaint, t->bt);
- return builtin_type_int;
- }
- if (map_bt[t->bt])
- {
- tp = *map_bt[t->bt];
- fmt = "%s";
- }
- else
- {
- tp = NULL;
- /* Cannot use builtin types -- build our own */
- switch (t->bt)
- {
- case btAdr:
- tp = lookup_pointer_type (builtin_type_void);
- fmt = "%s";
- break;
- case btStruct:
- type_code = TYPE_CODE_STRUCT;
- fmt = "struct %s";
- break;
- case btUnion:
- type_code = TYPE_CODE_UNION;
- fmt = "union %s";
- break;
- case btEnum:
- type_code = TYPE_CODE_ENUM;
- fmt = "enum %s";
- break;
- case btRange:
- type_code = TYPE_CODE_RANGE;
- fmt = "%s";
- break;
- case btSet:
- type_code = TYPE_CODE_SET;
- fmt = "set %s";
- break;
- case btTypedef:
- default:
- complain (&basic_type_complaint, t->bt);
- return builtin_type_int;
- }
- }
-
- /* Skip over any further type qualifiers (FIXME). */
- if (t->continued)
- {
- /* This is the way it would work if the compiler worked */
- TIR t1[1];
- do
- {
- ax++;
- ecoff_swap_tir_in (bigend, &ax->a_ti, t1);
- }
- while (t1->continued);
- }
-
- /* Move on to next aux */
- ax++;
-
- if (t->fBitfield)
- {
- *bs = AUX_GET_WIDTH (bigend, ax);
- ax++;
- }
-
- /* All these types really point to some (common) MIPS type
- definition, and only the type-qualifiers fully identify
- them. We'll make the same effort at sharing. */
- if (t->bt == btIndirect ||
- t->bt == btStruct ||
- t->bt == btUnion ||
- t->bt == btEnum ||
- t->bt == btTypedef ||
- t->bt == btRange ||
- t->bt == btSet)
- {
- char name[256], *pn;
-
- /* Try to cross reference this type */
- ax += cross_ref (ax, &tp, type_code, &pn, bigend);
- /* reading .o file ? */
- if (tp == (struct type *) NULL)
- tp = init_type (type_code, 0, 0, (char *) NULL,
- (struct objfile *) NULL);
- /* SOMEONE OUGHT TO FIX DBXREAD TO DROP "STRUCT" */
- sprintf (name, fmt, pn);
-
- /* Usually, TYPE_CODE(tp) is already type_code. The main
- exception is if we guessed wrong re struct/union/enum. */
- if (TYPE_CODE (tp) != type_code)
- {
- complain (&bad_tag_guess_complaint, name);
- TYPE_CODE (tp) = type_code;
- }
- if (TYPE_NAME (tp) == NULL || !STREQ (TYPE_NAME (tp), name))
- TYPE_NAME (tp) = obsavestring (name, strlen (name),
- ¤t_objfile->type_obstack);
- }
-
- /* Deal with range types */
- if (t->bt == btRange)
- {
- TYPE_NFIELDS (tp) = 2;
- TYPE_FIELDS (tp) = ((struct field *)
- TYPE_ALLOC (tp, 2 * sizeof (struct field)));
- TYPE_FIELD_NAME (tp, 0) = obsavestring ("Low", strlen ("Low"),
- ¤t_objfile->type_obstack);
- TYPE_FIELD_BITPOS (tp, 0) = AUX_GET_DNLOW (bigend, ax);
- ax++;
- TYPE_FIELD_NAME (tp, 1) = obsavestring ("High", strlen ("High"),
- ¤t_objfile->type_obstack);
- TYPE_FIELD_BITPOS (tp, 1) = AUX_GET_DNHIGH (bigend, ax);
- ax++;
- }
-
- /* Parse all the type qualifiers now. If there are more
- than 6 the game will continue in the next aux */
-
-#define PARSE_TQ(tq) \
- if (t->tq != tqNil) ax += upgrade_type(&tp, t->tq, ax, bigend);
-
-again:PARSE_TQ (tq0);
- PARSE_TQ (tq1);
- PARSE_TQ (tq2);
- PARSE_TQ (tq3);
- PARSE_TQ (tq4);
- PARSE_TQ (tq5);
-#undef PARSE_TQ
-
- if (t->continued)
- {
- tax++;
- ecoff_swap_tir_in (bigend, &tax->a_ti, t);
- goto again;
- }
- return tp;
-}
-
-/* Make up a complex type from a basic one. Type is passed by
- reference in TPP and side-effected as necessary. The type
- qualifier TQ says how to handle the aux symbols at AX for
- the symbol SX we are currently analyzing. BIGEND says whether
- aux symbols are big-endian or little-endian.
- Returns the number of aux symbols we parsed. */
-
-static int
-upgrade_type (tpp, tq, ax, bigend)
- struct type **tpp;
- int tq;
- union aux_ext *ax;
- int bigend;
-{
- int off;
- struct type *t;
-
- /* Used in array processing */
- int rf, id;
- FDR *fh;
- struct type *range;
- struct type *indx;
- int lower, upper;
- RNDXR rndx;
-
- switch (tq)
- {
- case tqPtr:
- t = lookup_pointer_type (*tpp);
- *tpp = t;
- return 0;
-
- case tqProc:
- t = lookup_function_type (*tpp);
- *tpp = t;
- return 0;
-
- case tqArray:
- off = 0;
-
- /* Determine and record the domain type (type of index) */
- ecoff_swap_rndx_in (bigend, &ax->a_rndx, &rndx);
- id = rndx.index;
- rf = rndx.rfd;
- if (rf == 0xfff)
- {
- ax++;
- rf = AUX_GET_ISYM (bigend, ax);
- off++;
- }
- fh = get_rfd (cur_fd, rf);
-
- indx = parse_type ((ecoff_data (cur_bfd)->external_aux
- + fh->iauxBase
- + id),
- (int *) NULL, bigend);
-
- /* Get the bounds, and create the array type. */
- ax++;
- lower = AUX_GET_DNLOW (bigend, ax);
- ax++;
- upper = AUX_GET_DNHIGH (bigend, ax);
- ax++;
- rf = AUX_GET_WIDTH (bigend, ax); /* bit size of array element */
-
- range = create_range_type ((struct type *) NULL, indx,
- lower, upper);
-
- t = create_array_type ((struct type *) NULL, *tpp, range);
-
- /* Check whether supplied array element bit size matches
- the known size of the element type. If this complaint
- ends up not happening, we can remove this code. It's
- here because we aren't sure we understand this *&%&$
- symbol format. */
- id = TYPE_LENGTH (TYPE_TARGET_TYPE (t)) << 3; /* bitsize */
- if (id == 0)
- {
- /* Most likely an undefined type */
- id = rf;
- TYPE_LENGTH (TYPE_TARGET_TYPE (t)) = id >> 3;
- }
- if (id != rf)
- complain (&array_bitsize_complaint, rf);
-
- *tpp = t;
- return 4 + off;
-
- case tqVol:
- /* Volatile -- currently ignored */
- return 0;
-
- case tqConst:
- /* Const -- currently ignored */
- return 0;
-
- default:
- complain (&unknown_type_qual_complaint, tq);
- return 0;
- }
-}
-
-
-/* Parse a procedure descriptor record PR. Note that the procedure is
- parsed _after_ the local symbols, now we just insert the extra
- information we need into a MIPS_EFI_SYMBOL_NAME symbol that has
- already been placed in the procedure's main block. Note also that
- images that have been partially stripped (ld -x) have been deprived
- of local symbols, and we have to cope with them here. FIRST_OFF is
- the offset of the first procedure for this FDR; we adjust the
- address by this amount, but I don't know why. */
-
-static void
-parse_procedure (pr, have_stabs, first_off)
- PDR *pr;
- int have_stabs;
- unsigned long first_off;
-{
- struct symbol *s, *i;
- struct block *b;
- struct mips_extra_func_info *e;
- char *sh_name;
-
- /* Simple rule to find files linked "-x" */
- if (cur_fdr->rss == -1)
- {
- if (pr->isym == -1)
- {
- /* Static procedure at address pr->adr. Sigh. */
- complain (&pdr_static_symbol_complaint, pr->adr);
- return;
- }
- else
- {
- /* external */
- EXTR she;
-
- ecoff_swap_ext_in (cur_bfd,
- ecoff_data (cur_bfd)->external_ext + pr->isym,
- &she);
- sh_name = ecoff_data (cur_bfd)->ssext + she.asym.iss;
- }
- }
- else
- {
- /* Full symbols */
- SYMR sh;
-
- ecoff_swap_sym_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_sym
- + cur_fdr->isymBase
- + pr->isym),
- &sh);
- sh_name = ecoff_data (cur_bfd)->ss + cur_fdr->issBase + sh.iss;
- }
-
- if (have_stabs)
- {
- /* We have to save the cur_fdr across the call to lookup_symbol.
- If the pdr is for a static function and if a global function with
- the same name exists, lookup_symbol will eventually read in the symtab
- for the global function and clobber cur_fdr. */
- FDR *save_cur_fdr = cur_fdr;
- s = lookup_symbol (sh_name, NULL, VAR_NAMESPACE, 0, NULL);
- cur_fdr = save_cur_fdr;
- }
- else
- s = mylookup_symbol (sh_name, top_stack->cur_block,
- VAR_NAMESPACE, LOC_BLOCK);
-
- if (s != 0)
- {
- b = SYMBOL_BLOCK_VALUE (s);
- }
- else
- {
- complain (&pdr_for_nonsymbol_complaint, sh_name);
-#if 1
- return;
-#else
-/* FIXME -- delete. We can't do symbol allocation now; it's all done. */
- s = new_symbol (sh_name);
- SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
- SYMBOL_CLASS (s) = LOC_BLOCK;
- /* Donno its type, hope int is ok */
- SYMBOL_TYPE (s) = lookup_function_type (builtin_type_int);
- add_symbol (s, top_stack->cur_block);
- /* Wont have symbols for this one */
- b = new_block (2);
- SYMBOL_BLOCK_VALUE (s) = b;
- BLOCK_FUNCTION (b) = s;
- BLOCK_START (b) = pr->adr;
- /* BOUND used to be the end of procedure's text, but the
- argument is no longer passed in. */
- BLOCK_END (b) = bound;
- BLOCK_SUPERBLOCK (b) = top_stack->cur_block;
- add_block (b, top_stack->cur_st);
-#endif
- }
-
- i = mylookup_symbol (MIPS_EFI_SYMBOL_NAME, b, LABEL_NAMESPACE, LOC_CONST);
-
- if (i)
- {
- e = (struct mips_extra_func_info *) SYMBOL_VALUE (i);
- e->pdr = *pr;
- e->pdr.isym = (long) s;
- e->pdr.adr += cur_fdr->adr - first_off;
- }
-}
-
-/* Parse the external symbol ES. Just call parse_symbol() after
- making sure we know where the aux are for it. For procedures,
- parsing of the PDRs has already provided all the needed
- information, we only parse them if SKIP_PROCEDURES is false,
- and only if this causes no symbol duplication.
- BIGEND says whether aux entries are big-endian or little-endian.
-
- This routine clobbers top_stack->cur_block and ->cur_st. */
-
-static void
-parse_external (es, skip_procedures, bigend)
- EXTR *es;
- int skip_procedures;
- int bigend;
-{
- union aux_ext *ax;
-
- if (es->ifd != ifdNil)
- {
- cur_fd = es->ifd;
- cur_fdr = ecoff_data (cur_bfd)->fdr + cur_fd;
- ax = ecoff_data (cur_bfd)->external_aux + cur_fdr->iauxBase;
- }
- else
- {
- cur_fdr = ecoff_data (cur_bfd)->fdr;
- ax = 0;
- }
-
- /* Reading .o files */
- if (es->asym.sc == scUndefined || es->asym.sc == scNil)
- {
- char *what;
- switch (es->asym.st)
- {
- case stStaticProc:
- case stProc:
- what = "procedure";
- n_undef_procs++;
- break;
- case stGlobal:
- what = "variable";
- n_undef_vars++;
- break;
- case stLabel:
- what = "label";
- n_undef_labels++;
- break;
- default:
- what = "symbol";
- break;
- }
- n_undef_symbols++;
- /* FIXME: Turn this into a complaint? */
- if (info_verbose)
- printf_filtered ("Warning: %s `%s' is undefined (in %s)\n",
- what,
- ecoff_data (cur_bfd)->ssext + es->asym.iss,
- fdr_name (cur_fdr));
- return;
- }
-
- switch (es->asym.st)
- {
- case stProc:
- /* If we have full symbols we do not need more */
- if (skip_procedures)
- return;
- if (mylookup_symbol (ecoff_data (cur_bfd)->ssext + es->asym.iss,
- top_stack->cur_block,
- VAR_NAMESPACE, LOC_BLOCK))
- break;
- /* fall through */
- case stGlobal:
- case stLabel:
- /* Note that the case of a symbol with indexNil must be handled
- anyways by parse_symbol(). */
- parse_symbol (&es->asym, ax, (struct sym_ext *) NULL, bigend);
- /* Note that parse_symbol changed es->asym. */
- break;
- default:
- break;
- }
-}
-
-/* Parse the line number info for file descriptor FH into
- GDB's linetable LT. MIPS' encoding requires a little bit
- of magic to get things out. Note also that MIPS' line
- numbers can go back and forth, apparently we can live
- with that and do not need to reorder our linetables */
-
-static void
-parse_lines (fh, pr, lt)
- FDR *fh;
- PDR *pr;
- struct linetable *lt;
-{
- unsigned char *base;
- int j, k;
- int delta, count, lineno = 0;
- unsigned long first_off = pr->adr;
-
- if (fh->cbLineOffset == 0)
- return;
-
- base = ecoff_data (cur_bfd)->line + fh->cbLineOffset;
-
- /* Scan by procedure descriptors */
- k = 0;
- for (j = 0; j < fh->cpd; j++, pr++)
- {
- int l, halt;
- unsigned long adr;
-
- /* No code for this one */
- if (pr->iline == ilineNil ||
- pr->lnLow == -1 || pr->lnHigh == -1)
- continue;
-
- /* Aurgh! To know where to stop expanding we must look-ahead. */
- for (l = 1; l < (fh->cpd - j); l++)
- if (pr[l].iline != -1)
- break;
- if (l == (fh->cpd - j))
- halt = fh->cline;
- else
- halt = pr[l].iline;
-
- /* When procedures are moved around the linenumbers are
- attributed to the next procedure up. */
- if (pr->iline >= halt)
- continue;
-
- base = ecoff_data (cur_bfd)->line + fh->cbLineOffset + pr->cbLineOffset;
- adr = fh->adr + pr->adr - first_off;
- l = adr >> 2; /* in words */
- halt += (adr >> 2) - pr->iline;
- for (lineno = pr->lnLow; l < halt;)
- {
- count = *base & 0x0f;
- delta = *base++ >> 4;
- if (delta >= 8)
- delta -= 16;
- if (delta == -8)
- {
- delta = (base[0] << 8) | base[1];
- if (delta >= 0x8000)
- delta -= 0x10000;
- base += 2;
- }
- lineno += delta; /* first delta is 0 */
- k = add_line (lt, lineno, l, k);
- l += count + 1;
- }
- }
-}
-\f
-/* Master parsing procedure for first-pass reading of file symbols
- into a partial_symtab. */
-
-static void
-parse_partial_symbols (objfile, section_offsets)
- struct objfile *objfile;
- struct section_offsets *section_offsets;
-{
- int f_idx, s_idx;
- HDRR *hdr = &ecoff_data (cur_bfd)->symbolic_header;
- /* Running pointers */
- FDR *fh;
- struct ext_ext *ext_out;
- struct ext_ext *ext_out_end;
- EXTR *ext_block;
- register EXTR *ext_in;
- EXTR *ext_in_end;
- SYMR sh;
- struct partial_symtab *pst;
-
- int past_first_source_file = 0;
-
- /* List of current psymtab's include files */
- char **psymtab_include_list;
- int includes_allocated;
- int includes_used;
- EXTR *extern_tab;
- struct pst_map *fdr_to_pst;
- /* Index within current psymtab dependency list */
- struct partial_symtab **dependency_list;
- int dependencies_used, dependencies_allocated;
- struct cleanup *old_chain;
- char *name;
-
- extern_tab = (EXTR *) obstack_alloc (&objfile->psymbol_obstack,
- sizeof (EXTR) * hdr->iextMax);
-
- includes_allocated = 30;
- includes_used = 0;
- psymtab_include_list = (char **) alloca (includes_allocated *
- sizeof (char *));
- next_symbol_text_func = mips_next_symbol_text;
-
- dependencies_allocated = 30;
- dependencies_used = 0;
- dependency_list =
- (struct partial_symtab **) alloca (dependencies_allocated *
- sizeof (struct partial_symtab *));
-
- last_source_file = NULL;
-
- /*
- * Big plan:
- *
- * Only parse the Local and External symbols, and the Relative FDR.
- * Fixup enough of the loader symtab to be able to use it.
- * Allocate space only for the file's portions we need to
- * look at. (XXX)
- */
-
- max_gdbinfo = 0;
- max_glevel = MIN_GLEVEL;
-
- /* Allocate the map FDR -> PST.
- Minor hack: -O3 images might claim some global data belongs
- to FDR -1. We`ll go along with that */
- fdr_to_pst = (struct pst_map *) xzalloc ((hdr->ifdMax + 1) * sizeof *fdr_to_pst);
- old_chain = make_cleanup (free, fdr_to_pst);
- fdr_to_pst++;
- {
- struct partial_symtab *pst = new_psymtab ("", objfile);
- fdr_to_pst[-1].pst = pst;
- FDR_IDX (pst) = -1;
- }
-
- /* Pass 0 over external syms: swap them in. */
- ext_block = (EXTR *) xmalloc (hdr->iextMax * sizeof (EXTR));
- make_cleanup (free, ext_block);
-
- ext_out = ecoff_data (cur_bfd)->external_ext;
- ext_out_end = ext_out + hdr->iextMax;
- ext_in = ext_block;
- for (; ext_out < ext_out_end; ext_out++, ext_in++)
- ecoff_swap_ext_in (cur_bfd, ext_out, ext_in);
-
- /* Pass 1 over external syms: Presize and partition the list */
- ext_in = ext_block;
- ext_in_end = ext_in + hdr->iextMax;
- for (; ext_in < ext_in_end; ext_in++)
- fdr_to_pst[ext_in->ifd].n_globals++;
-
- /* Pass 1.5 over files: partition out global symbol space */
- s_idx = 0;
- for (f_idx = -1; f_idx < hdr->ifdMax; f_idx++)
- {
- fdr_to_pst[f_idx].globals_offset = s_idx;
- s_idx += fdr_to_pst[f_idx].n_globals;
- fdr_to_pst[f_idx].n_globals = 0;
- }
-
- /* Pass 2 over external syms: fill in external symbols */
- ext_in = ext_block;
- ext_in_end = ext_in + hdr->iextMax;
- for (; ext_in < ext_in_end; ext_in++)
- {
- enum minimal_symbol_type ms_type = mst_text;
-
- extern_tab[fdr_to_pst[ext_in->ifd].globals_offset
- + fdr_to_pst[ext_in->ifd].n_globals++] = *ext_in;
-
- if (ext_in->asym.sc == scUndefined || ext_in->asym.sc == scNil)
- continue;
-
- name = ecoff_data (cur_bfd)->ssext + ext_in->asym.iss;
- switch (ext_in->asym.st)
- {
- case stProc:
- break;
- case stGlobal:
- ms_type = mst_data;
- break;
- case stLabel:
- break;
- default:
- ms_type = mst_unknown;
- complain (&unknown_ext_complaint, name);
- }
- prim_record_minimal_symbol (name, ext_in->asym.value, ms_type);
- }
-
- /* Pass 3 over files, over local syms: fill in static symbols */
- for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++)
- {
- struct partial_symtab *save_pst;
- EXTR *ext_ptr;
-
- cur_fdr = fh = ecoff_data (cur_bfd)->fdr + f_idx;
-
- if (fh->csym == 0)
- {
- fdr_to_pst[f_idx].pst = NULL;
- continue;
- }
- pst = start_psymtab_common (objfile, section_offsets,
- fdr_name (fh),
- fh->cpd ? fh->adr : 0,
- objfile->global_psymbols.next,
- objfile->static_psymbols.next);
- pst->read_symtab_private = ((char *)
- obstack_alloc (&objfile->psymbol_obstack,
- sizeof (struct symloc)));
- memset ((PTR) pst->read_symtab_private, 0, sizeof (struct symloc));
-
- save_pst = pst;
- /* Make everything point to everything. */
- FDR_IDX (pst) = f_idx;
- fdr_to_pst[f_idx].pst = pst;
-
- /* FIXME: This tampers with data from BFD. */
- fh->ioptBase = (int) pst;
-
- CUR_BFD (pst) = cur_bfd;
-
- /* The way to turn this into a symtab is to call... */
- pst->read_symtab = mipscoff_psymtab_to_symtab;
-
- pst->texthigh = pst->textlow;
-
- /* For stabs-in-ecoff files, the second symbol must be @stab.
- This symbol is emitted by mips-tfile to signal that the
- current object file uses encapsulated stabs instead of mips
- ecoff for local symbols. (It is the second symbol because
- the first symbol is the stFile used to signal the start of a
- file). */
- processing_gcc_compilation = 0;
- if (fh->csym >= 2)
- {
- ecoff_swap_sym_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_sym
- + fh->isymBase
- + 1),
- &sh);
- if (STREQ (ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss,
- stabs_symbol))
- processing_gcc_compilation = 2;
- }
-
- if (processing_gcc_compilation != 0)
- {
- for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++)
- {
- int type_code;
- char *namestring;
-
- ecoff_swap_sym_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_sym
- + fh->isymBase
- + cur_sdx),
- &sh);
- type_code = MIPS_UNMARK_STAB (sh.index);
- if (!MIPS_IS_STAB (&sh))
- {
- if (sh.st == stProc || sh.st == stStaticProc)
- {
- long procaddr = sh.value;
- long isym;
-
-
- isym = AUX_GET_ISYM (fh->fBigendian,
- (ecoff_data (cur_bfd)->external_aux
- + fh->iauxBase
- + sh.index));
- ecoff_swap_sym_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_sym
- + fh->isymBase
- + isym
- - 1),
- &sh);
- if (sh.st == stEnd)
- {
- long high = procaddr + sh.value;
- if (high > pst->texthigh)
- pst->texthigh = high;
- }
- }
- continue;
- }
-#define SET_NAMESTRING() \
- namestring = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss
-#define CUR_SYMBOL_TYPE type_code
-#define CUR_SYMBOL_VALUE sh.value
-#define START_PSYMTAB(ofile,secoff,fname,low,symoff,global_syms,static_syms)\
- pst = save_pst
-#define END_PSYMTAB(pst,ilist,ninc,c_off,c_text,dep_list,n_deps) (void)0
-#define HANDLE_RBRAC(val) \
- if ((val) > save_pst->texthigh) save_pst->texthigh = (val);
-#include "partial-stab.h"
- }
- }
- else
- {
- for (cur_sdx = 0; cur_sdx < fh->csym;)
- {
- char *name;
- enum address_class class;
-
- ecoff_swap_sym_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_sym
- + fh->isymBase
- + cur_sdx),
- &sh);
-
- if (MIPS_IS_STAB (&sh))
- {
- cur_sdx++;
- continue;
- }
-
- if (sh.sc == scUndefined || sh.sc == scNil ||
- sh.index == 0xfffff)
- {
- /* FIXME, premature? */
- cur_sdx++;
- continue;
- }
-
- name = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss;
-
- switch (sh.st)
- {
- long high;
- long procaddr;
- int new_sdx;
-
- case stProc: /* Asm labels apparently */
- case stStaticProc: /* Function */
- ADD_PSYMBOL_TO_LIST (name, strlen (name),
- VAR_NAMESPACE, LOC_BLOCK,
- objfile->static_psymbols, sh.value,
- psymtab_language, objfile);
- /* Skip over procedure to next one. */
- if (sh.index >= hdr->iauxMax)
- {
- /* Should not happen, but does when cross-compiling
- with the MIPS compiler. FIXME -- pull later. */
- complain (&index_complaint, name);
- new_sdx = cur_sdx + 1; /* Don't skip at all */
- }
- else
- new_sdx = AUX_GET_ISYM (fh->fBigendian,
- (ecoff_data (cur_bfd)->external_aux
- + fh->iauxBase
- + sh.index));
- procaddr = sh.value;
-
- if (new_sdx <= cur_sdx)
- {
- /* This should not happen either... FIXME. */
- complain (&aux_index_complaint, name);
- new_sdx = cur_sdx + 1; /* Don't skip backward */
- }
-
- cur_sdx = new_sdx;
- ecoff_swap_sym_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_sym
- + fh->isymBase
- + cur_sdx
- - 1),
- &sh);
- if (sh.st != stEnd)
- continue;
- high = procaddr + sh.value;
- if (high > pst->texthigh)
- pst->texthigh = high;
- continue;
-
- case stStatic: /* Variable */
- class = LOC_STATIC;
- break;
-
- case stTypedef:/* Typedef */
- class = LOC_TYPEDEF;
- break;
-
- case stConstant: /* Constant decl */
- class = LOC_CONST;
- break;
-
- case stUnion:
- case stStruct:
- case stEnum:
- case stBlock: /* { }, str, un, enum*/
- if (sh.sc == scInfo)
- {
- ADD_PSYMBOL_TO_LIST (name, strlen (name),
- STRUCT_NAMESPACE, LOC_TYPEDEF,
- objfile->static_psymbols,
- sh.value,
- psymtab_language, objfile);
- }
- /* Skip over the block */
- new_sdx = sh.index;
- if (new_sdx <= cur_sdx)
- {
- /* This happens with the Ultrix kernel. */
- complain (&block_index_complaint, name);
- new_sdx = cur_sdx + 1; /* Don't skip backward */
- }
- cur_sdx = new_sdx;
- continue;
-
- case stFile: /* File headers */
- case stLabel: /* Labels */
- case stEnd: /* Ends of files */
- goto skip;
-
- case stLocal: /* Local variables */
- /* Normally these are skipped because we skip over
- all blocks we see. However, these can occur
- as visible symbols in a .h file that contains code. */
- goto skip;
-
- default:
- /* Both complaints are valid: one gives symbol name,
- the other the offending symbol type. */
- complain (&unknown_sym_complaint, name);
- complain (&unknown_st_complaint, sh.st);
- cur_sdx++;
- continue;
- }
- /* Use this gdb symbol */
- ADD_PSYMBOL_TO_LIST (name, strlen (name),
- VAR_NAMESPACE, class,
- objfile->static_psymbols, sh.value,
- psymtab_language, objfile);
- skip:
- cur_sdx++; /* Go to next file symbol */
- }
-
- /* Now do enter the external symbols. */
- ext_ptr = &extern_tab[fdr_to_pst[f_idx].globals_offset];
- cur_sdx = fdr_to_pst[f_idx].n_globals;
- PST_PRIVATE (save_pst)->extern_count = cur_sdx;
- PST_PRIVATE (save_pst)->extern_tab = ext_ptr;
- for (; --cur_sdx >= 0; ext_ptr++)
- {
- register struct partial_symbol *psym;
- enum address_class class;
- SYMR *psh;
- char *name;
-
- if (ext_ptr->ifd != f_idx)
- abort ();
- psh = &ext_ptr->asym;
- switch (psh->st)
- {
- case stProc:
- class = LOC_BLOCK;
- break;
- case stLabel:
- class = LOC_LABEL;
- break;
- default:
- complain (&unknown_ext_complaint,
- ecoff_data (cur_bfd)->ssext + psh->iss);
- /* Fall through, pretend it's global. */
- case stGlobal:
- class = LOC_STATIC;
- break;
- }
- name = ecoff_data (cur_bfd)->ssext + psh->iss;
- ADD_PSYMBOL_ADDR_TO_LIST (name, strlen (name),
- VAR_NAMESPACE, class,
- objfile->global_psymbols, (CORE_ADDR) psh->value,
- psymtab_language, objfile);
- }
- }
-
- end_psymtab (save_pst, psymtab_include_list, includes_used,
- -1, save_pst->texthigh,
- dependency_list, dependencies_used);
- if (objfile->ei.entry_point >= save_pst->textlow &&
- objfile->ei.entry_point < save_pst->texthigh)
- {
- objfile->ei.entry_file_lowpc = save_pst->textlow;
- objfile->ei.entry_file_highpc = save_pst->texthigh;
- }
- }
-
- /* Now scan the FDRs for dependencies */
- for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++)
- {
- int s_id0 = 0;
- fh = f_idx + ecoff_data (cur_bfd)->fdr;
- pst = fdr_to_pst[f_idx].pst;
-
- /* This should catch stabs-in-ecoff. */
- if (fh->crfd <= 1)
- continue;
-
- if (fh->cpd == 0)
- { /* If there are no functions defined here ... */
- /* ...then presumably a .h file: drop reverse depends .h->.c */
- for (; s_id0 < fh->crfd; s_id0++)
- {
- RFDT rh;
-
- ecoff_swap_rfd_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_rfd
- + fh->rfdBase
- + s_id0),
- &rh);
- if (rh == f_idx)
- {
- s_id0++; /* Skip self-dependency */
- break;
- }
- }
- }
- pst->number_of_dependencies = fh->crfd - s_id0;
- pst->dependencies =
- ((struct partial_symtab **)
- obstack_alloc (&objfile->psymbol_obstack,
- (pst->number_of_dependencies
- * sizeof (struct partial_symtab *))));
- for (s_idx = s_id0; s_idx < fh->crfd; s_idx++)
- {
- RFDT rh;
-
- ecoff_swap_rfd_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_rfd
- + fh->rfdBase
- + s_idx),
- &rh);
- if (rh < 0 || rh >= hdr->ifdMax)
- complain (&bad_file_number_complaint, rh);
- else
- pst->dependencies[s_idx - s_id0] = fdr_to_pst[rh].pst;
- }
- }
- do_cleanups (old_chain);
-}
-
-
-#if 0
-/* Do the initial analisys of the F_IDX-th file descriptor.
- Allocates a partial symtab for it, and builds the list
- of dependent files by recursion. LEV says at which level
- of recursion we are called (to pretty up debug traces) */
-
-static struct partial_symtab *
-parse_fdr (f_idx, lev, objfile)
- int f_idx;
- int lev;
- struct objfile *objfile;
-{
- register FDR *fh;
- register struct partial_symtab *pst;
- int s_idx, s_id0;
-
- fh = ecoff_data (cur_bfd)->fdr + f_idx;
-
- /* Use this to indicate into which symtab this file was parsed */
- if (fh->ioptBase)
- return (struct partial_symtab *) fh->ioptBase;
-
- /* Debuggability level */
- if (compare_glevel (max_glevel, fh->glevel) < 0)
- max_glevel = fh->glevel;
-
- /* Make a new partial_symtab */
- pst = new_psymtab (fdr_name (fh), objfile);
- if (fh->cpd == 0)
- {
- pst->textlow = 0;
- pst->texthigh = 0;
- }
- else
- {
- pst->textlow = fh->adr;
- pst->texthigh = fh->cpd; /* To be fixed later */
- }
-
- /* Make everything point to everything. */
- FDR_IDX (pst) = f_idx;
- fdr_to_pst[f_idx].pst = pst;
- fh->ioptBase = (int) pst;
-
- /* Analyze its dependencies */
- if (fh->crfd <= 1)
- return pst;
-
- s_id0 = 0;
- if (fh->cpd == 0)
- { /* If there are no functions defined here ... */
- /* ...then presumably a .h file: drop reverse depends .h->.c */
- for (; s_id0 < fh->crfd; s_id0++)
- {
- RFDT rh;
-
- ecoff_swap_rfd_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_rfd
- + fh->rfdBase
- + s_id0),
- &rh);
- if (rh == f_idx)
- {
- s_id0++; /* Skip self-dependency */
- break;
- }
- }
- }
- pst->number_of_dependencies = fh->crfd - s_id0;
- pst->dependencies = ((struct partial_symtab **)
- obstack_alloc (&objfile->psymbol_obstack,
- (pst->number_of_dependencies
- * sizeof (struct partial_symtab *))));
- for (s_idx = s_id0; s_idx < fh->crfd; s_idx++)
- {
- RFDT rh;
-
- ecoff_swap_rfd_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_rfd
- + fh->rfdBase
- + s_idx),
- &rh);
- pst->dependencies[s_idx - s_id0] = parse_fdr (rh, lev + 1, objfile);
- }
-
- return pst;
-}
-
-#endif
-
-static char *
-mips_next_symbol_text ()
-{
- SYMR sh;
-
- cur_sdx++;
- ecoff_swap_sym_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_sym
- + cur_fdr->isymBase
- + cur_sdx),
- &sh);
- return ecoff_data (cur_bfd)->ss + cur_fdr->issBase + sh.iss;
-}
-
-/* Ancillary function to psymtab_to_symtab(). Does all the work
- for turning the partial symtab PST into a symtab, recurring
- first on all dependent psymtabs. The argument FILENAME is
- only passed so we can see in debug stack traces what file
- is being read.
-
- This function has a split personality, based on whether the
- symbol table contains ordinary ecoff symbols, or stabs-in-ecoff.
- The flow of control and even the memory allocation differs. FIXME. */
-
-static void
-psymtab_to_symtab_1 (pst, filename)
- struct partial_symtab *pst;
- char *filename;
-{
- int i;
- struct symtab *st;
- FDR *fh;
- struct linetable *lines;
-
- if (pst->readin)
- return;
- pst->readin = 1;
-
- /* Read in all partial symbtabs on which this one is dependent.
- NOTE that we do have circular dependencies, sigh. We solved
- that by setting pst->readin before this point. */
-
- for (i = 0; i < pst->number_of_dependencies; i++)
- if (!pst->dependencies[i]->readin)
- {
- /* Inform about additional files to be read in. */
- if (info_verbose)
- {
- fputs_filtered (" ", stdout);
- wrap_here ("");
- fputs_filtered ("and ", stdout);
- wrap_here ("");
- printf_filtered ("%s...",
- pst->dependencies[i]->filename);
- wrap_here (""); /* Flush output */
- fflush (stdout);
- }
- /* We only pass the filename for debug purposes */
- psymtab_to_symtab_1 (pst->dependencies[i],
- pst->dependencies[i]->filename);
- }
-
- /* Now read the symbols for this symtab */
-
- current_objfile = pst->objfile;
- cur_fd = FDR_IDX (pst);
- fh = (cur_fd == -1) ? (FDR *) NULL : ecoff_data (cur_bfd)->fdr + cur_fd;
- cur_fdr = fh;
-
- /* See comment in parse_partial_symbols about the @stabs sentinel. */
- processing_gcc_compilation = 0;
- if (fh != (FDR *) NULL && fh->csym >= 2)
- {
- SYMR sh;
-
- ecoff_swap_sym_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_sym
- + fh->isymBase
- + 1),
- &sh);
- if (STREQ (ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss,
- stabs_symbol))
- {
- /* We indicate that this is a GCC compilation so that certain
- features will be enabled in stabsread/dbxread. */
- processing_gcc_compilation = 2;
- }
- }
-
- if (processing_gcc_compilation != 0)
- {
- struct pdr_ext *pdr_ptr;
- struct pdr_ext *pdr_end;
- int first_pdr;
- unsigned long first_off;
-
- /* This symbol table contains stabs-in-ecoff entries. */
-
- /* Parse local symbols first */
-
- if (fh->csym <= 2) /* FIXME, this blows psymtab->symtab ptr */
- {
- current_objfile = NULL;
- return;
- }
- for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++)
- {
- SYMR sh;
- char *name;
- CORE_ADDR valu;
-
- ecoff_swap_sym_in (cur_bfd,
- (ecoff_data (cur_bfd)->external_sym
- + fh->isymBase
- + cur_sdx),
- &sh);
- name = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss;
- valu = sh.value;
- if (MIPS_IS_STAB (&sh))
- {
- int type_code = MIPS_UNMARK_STAB (sh.index);
- process_one_symbol (type_code, 0, valu, name,
- pst->section_offsets, pst->objfile);
- if (type_code == N_FUN)
- {
- /* Make up special symbol to contain
- procedure specific info */
- struct mips_extra_func_info *e =
- ((struct mips_extra_func_info *)
- obstack_alloc (¤t_objfile->symbol_obstack,
- sizeof (struct mips_extra_func_info)));
- struct symbol *s = new_symbol (MIPS_EFI_SYMBOL_NAME);
- SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE;
- SYMBOL_CLASS (s) = LOC_CONST;
- SYMBOL_TYPE (s) = builtin_type_void;
- SYMBOL_VALUE (s) = (int) e;
- add_symbol_to_list (s, &local_symbols);
- }
- }
- else if (sh.st == stLabel && sh.index != indexNil)
- {
- /* Handle encoded stab line number. */
- record_line (current_subfile, sh.index, valu);
- }
- else if (sh.st == stProc || sh.st == stStaticProc || sh.st == stEnd)
- /* These are generated by gcc-2.x, do not complain */
- ;
- else
- complain (&stab_unknown_complaint, name);
- }
- st = end_symtab (pst->texthigh, 0, 0, pst->objfile, SECT_OFF_TEXT);
- end_stabs ();
-
- /* Sort the symbol table now, we are done adding symbols to it.
- We must do this before parse_procedure calls lookup_symbol. */
- sort_symtab_syms (st);
-
- /* This may not be necessary for stabs symtabs. FIXME. */
- sort_blocks (st);
-
- /* Fill in procedure info next. */
- first_pdr = 1;
- pdr_ptr = ecoff_data (cur_bfd)->external_pdr + fh->ipdFirst;
- pdr_end = pdr_ptr + fh->cpd;
- for (; pdr_ptr < pdr_end; pdr_ptr++)
- {
- PDR pr;
-
- ecoff_swap_pdr_in (cur_bfd, pdr_ptr, &pr);
- if (first_pdr)
- {
- first_off = pr.adr;
- first_pdr = 0;
- }
- parse_procedure (&pr, 1, first_off);
- }
- }
- else
- {
- /* This symbol table contains ordinary ecoff entries. */
-
- /* FIXME: doesn't use pst->section_offsets. */
-
- int f_max;
- int maxlines;
- EXTR *ext_ptr;
-
- /* How many symbols will we need */
- /* FIXME, this does not count enum values. */
- f_max = pst->n_global_syms + pst->n_static_syms;
- if (fh == 0)
- {
- maxlines = 0;
- st = new_symtab ("unknown", f_max, 0, pst->objfile);
- }
- else
- {
- f_max += fh->csym + fh->cpd;
- maxlines = 2 * fh->cline;
- st = new_symtab (pst->filename, 2 * f_max, maxlines, pst->objfile);
- }
-
- lines = LINETABLE (st);
- pending_list = PST_PRIVATE (pst)->pending_list;
- if (pending_list == 0)
- {
- pending_list = ((struct mips_pending **)
- xzalloc (ecoff_data (cur_bfd)->symbolic_header.ifdMax
- * sizeof (struct mips_pending *)));
- PST_PRIVATE (pst)->pending_list = pending_list;
- }
-
- /* Get a new lexical context */
-
- push_parse_stack ();
- top_stack->cur_st = st;
- top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (st),
- STATIC_BLOCK);
- BLOCK_START (top_stack->cur_block) = fh ? fh->adr : 0;
- BLOCK_END (top_stack->cur_block) = 0;
- top_stack->blocktype = stFile;
- top_stack->maxsyms = 2 * f_max;
- top_stack->cur_type = 0;
- top_stack->procadr = 0;
- top_stack->numargs = 0;
-
- if (fh)
- {
- struct sym_ext *sym_ptr;
- struct sym_ext *sym_end;
-
- /* Parse local symbols first */
- sym_ptr = ecoff_data (cur_bfd)->external_sym + fh->isymBase;
- sym_end = sym_ptr + fh->csym;
- while (sym_ptr < sym_end)
- {
- SYMR sh;
- int c;
-
- ecoff_swap_sym_in (cur_bfd, sym_ptr, &sh);
- c = parse_symbol (&sh,
- (ecoff_data (cur_bfd)->external_aux
- + fh->iauxBase),
- sym_ptr, fh->fBigendian);
- /* FIXME: We must swap the modified symbol back out,
- although we would rather not. See parse_symbol. */
- ecoff_swap_sym_out (cur_bfd, &sh, sym_ptr);
- sym_ptr += c;
- }
-
- /* Linenumbers. At the end, check if we can save memory.
- parse_lines has to look ahead an arbitrary number of PDR
- structures, so we swap them all first. */
- if (fh->cpd > 0)
- {
- PDR *pr_block;
- struct cleanup *old_chain;
- struct pdr_ext *pdr_ptr;
- struct pdr_ext *pdr_end;
- PDR *pdr_in;
- PDR *pdr_in_end;
-
- pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR));
-
- old_chain = make_cleanup (free, pr_block);
-
- pdr_ptr = ecoff_data (cur_bfd)->external_pdr + fh->ipdFirst;
- pdr_end = pdr_ptr + fh->cpd;
- pdr_in = pr_block;
- for (; pdr_ptr < pdr_end; pdr_ptr++, pdr_in++)
- ecoff_swap_pdr_in (cur_bfd, pdr_ptr, pdr_in);
-
- parse_lines (fh, pr_block, lines);
- if (lines->nitems < fh->cline)
- lines = shrink_linetable (lines);
-
- /* Fill in procedure info next. */
- pdr_in = pr_block;
- pdr_in_end = pdr_in + fh->cpd;
- for (; pdr_in < pdr_in_end; pdr_in++)
- parse_procedure (pdr_in, 0, pr_block->adr);
-
- do_cleanups (old_chain);
- }
- }
-
- LINETABLE (st) = lines;
-
- /* .. and our share of externals.
- XXX use the global list to speed up things here. how?
- FIXME, Maybe quit once we have found the right number of ext's? */
- top_stack->cur_st = st;
- top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st),
- GLOBAL_BLOCK);
- top_stack->blocktype = stFile;
- top_stack->maxsyms = (ecoff_data (cur_bfd)->symbolic_header.isymMax
- + ecoff_data (cur_bfd)->symbolic_header.ipdMax
- + ecoff_data (cur_bfd)->symbolic_header.iextMax);
-
- ext_ptr = PST_PRIVATE (pst)->extern_tab;
- for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++)
- parse_external (ext_ptr, 1, fh->fBigendian);
-
- /* If there are undefined, tell the user */
- if (n_undef_symbols)
- {
- printf_filtered ("File %s contains %d unresolved references:",
- st->filename, n_undef_symbols);
- printf_filtered ("\n\t%4d variables\n\t%4d procedures\n\t%4d labels\n",
- n_undef_vars, n_undef_procs, n_undef_labels);
- n_undef_symbols = n_undef_labels = n_undef_vars = n_undef_procs = 0;
-
- }
- pop_parse_stack ();
-
- /* Sort the symbol table now, we are done adding symbols to it.*/
- sort_symtab_syms (st);
-
- sort_blocks (st);
- }
-
- /* Now link the psymtab and the symtab. */
- pst->symtab = st;
-
- current_objfile = NULL;
-}
-\f
-/* Ancillary parsing procedures. */
-
-/* Lookup the type at relative index RN. Return it in TPP
- if found and in any event come up with its name PNAME.
- BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian).
- Return value says how many aux symbols we ate. */
-
-static int
-cross_ref (ax, tpp, type_code, pname, bigend)
- union aux_ext *ax;
- struct type **tpp;
- enum type_code type_code; /* Use to alloc new type if none is found. */
- char **pname;
- int bigend;
-{
- RNDXR rn[1];
- unsigned rf;
- int result = 1;
-
- ecoff_swap_rndx_in (bigend, &ax->a_rndx, rn);
-
- /* Escape index means 'the next one' */
- if (rn->rfd == 0xfff)
- {
- result++;
- rf = AUX_GET_ISYM (bigend, ax + 1);
- }
- else
- {
- rf = rn->rfd;
- }
-
- if (rf == -1)
- {
- /* Ooops */
- *pname = "<undefined>";
- }
- else
- {
- /*
- * Find the relative file descriptor and the symbol in it
- */
- FDR *fh = get_rfd (cur_fd, rf);
- struct sym_ext *esh;
- SYMR sh;
- struct type *t;
-
- /* If we have processed this symbol then we left a forwarding
- pointer to the corresponding GDB symbol. If not, we`ll put
- it in a list of pending symbols, to be processed later when
- the file will be. In any event, we collect the name for the
- type here. Which is why we made a first pass at strings. */
-
- esh = ecoff_data (cur_bfd)->external_sym + fh->isymBase + rn->index;
- ecoff_swap_sym_in (cur_bfd, esh, &sh);
-
- /* Careful, we might be looking at .o files */
- if (sh.iss == 0)
- *pname = "<undefined>";
- else
- *pname = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss;
-
- /* Have we parsed it ? */
- if (sh.value != 0 && sh.st == stParsed)
- {
- t = (struct type *) sh.value;
- *tpp = t;
- }
- else
- {
- /* Avoid duplicates */
- struct mips_pending *p = is_pending_symbol (fh, esh);
- if (p)
- *tpp = p->t;
- else
- {
- *tpp = init_type (type_code, 0, 0, (char *) NULL,
- (struct objfile *) NULL);
- add_pending (fh, esh, *tpp);
- }
- }
- }
-
- /* We used one auxent normally, two if we got a "next one" rf. */
- return result;
-}
-
-
-/* Quick&dirty lookup procedure, to avoid the MI ones that require
- keeping the symtab sorted */
-
-static struct symbol *
-mylookup_symbol (name, block, namespace, class)
- char *name;
- register struct block *block;
- enum namespace namespace;
- enum address_class class;
-{
- register int bot, top, inc;
- register struct symbol *sym;
-
- bot = 0;
- top = BLOCK_NSYMS (block);
- inc = name[0];
- while (bot < top)
- {
- sym = BLOCK_SYM (block, bot);
- if (SYMBOL_NAME (sym)[0] == inc
- && SYMBOL_NAMESPACE (sym) == namespace
- && SYMBOL_CLASS (sym) == class
- && STREQ (SYMBOL_NAME (sym), name))
- return sym;
- bot++;
- }
- block = BLOCK_SUPERBLOCK (block);
- if (block)
- return mylookup_symbol (name, block, namespace, class);
- return 0;
-}
-
-
-/* Add a new symbol S to a block B.
- Infrequently, we will need to reallocate the block to make it bigger.
- We only detect this case when adding to top_stack->cur_block, since
- that's the only time we know how big the block is. FIXME. */
-
-static void
-add_symbol (s, b)
- struct symbol *s;
- struct block *b;
-{
- int nsyms = BLOCK_NSYMS (b)++;
- struct block *origb;
- struct parse_stack *stackp;
-
- if (b == top_stack->cur_block &&
- nsyms >= top_stack->maxsyms)
- {
- complain (&block_overflow_complaint, SYMBOL_NAME (s));
- /* In this case shrink_block is actually grow_block, since
- BLOCK_NSYMS(b) is larger than its current size. */
- origb = b;
- b = shrink_block (top_stack->cur_block, top_stack->cur_st);
-
- /* Now run through the stack replacing pointers to the
- original block. shrink_block has already done this
- for the blockvector and BLOCK_FUNCTION. */
- for (stackp = top_stack; stackp; stackp = stackp->next)
- {
- if (stackp->cur_block == origb)
- {
- stackp->cur_block = b;
- stackp->maxsyms = BLOCK_NSYMS (b);
- }
- }
- }
- BLOCK_SYM (b, nsyms) = s;
-}
-
-/* Add a new block B to a symtab S */
-
-static void
-add_block (b, s)
- struct block *b;
- struct symtab *s;
-{
- struct blockvector *bv = BLOCKVECTOR (s);
-
- bv = (struct blockvector *) xrealloc ((PTR) bv,
- (sizeof (struct blockvector)
- + BLOCKVECTOR_NBLOCKS (bv)
- * sizeof (bv->block)));
- if (bv != BLOCKVECTOR (s))
- BLOCKVECTOR (s) = bv;
-
- BLOCKVECTOR_BLOCK (bv, BLOCKVECTOR_NBLOCKS (bv)++) = b;
-}
-
-/* Add a new linenumber entry (LINENO,ADR) to a linevector LT.
- MIPS' linenumber encoding might need more than one byte
- to describe it, LAST is used to detect these continuation lines */
-
-static int
-add_line (lt, lineno, adr, last)
- struct linetable *lt;
- int lineno;
- CORE_ADDR adr;
- int last;
-{
- if (last == 0)
- last = -2; /* make sure we record first line */
-
- if (last == lineno) /* skip continuation lines */
- return lineno;
-
- lt->item[lt->nitems].line = lineno;
- lt->item[lt->nitems++].pc = adr << 2;
- return lineno;
-}
-\f
-/* Sorting and reordering procedures */
-
-/* Blocks with a smaller low bound should come first */
-
-static int
-compare_blocks (arg1, arg2)
- const void *arg1, *arg2;
-{
- register int addr_diff;
- struct block **b1 = (struct block **) arg1;
- struct block **b2 = (struct block **) arg2;
-
- addr_diff = (BLOCK_START ((*b1))) - (BLOCK_START ((*b2)));
- if (addr_diff == 0)
- return (BLOCK_END ((*b2))) - (BLOCK_END ((*b1)));
- return addr_diff;
-}
-
-/* Sort the blocks of a symtab S.
- Reorder the blocks in the blockvector by code-address,
- as required by some MI search routines */
-
-static void
-sort_blocks (s)
- struct symtab *s;
-{
- struct blockvector *bv = BLOCKVECTOR (s);
-
- if (BLOCKVECTOR_NBLOCKS (bv) <= 2)
- {
- /* Cosmetic */
- if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) == 0)
- BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = 0;
- if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) == 0)
- BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = 0;
- return;
- }
- /*
- * This is very unfortunate: normally all functions are compiled in
- * the order they are found, but if the file is compiled -O3 things
- * are very different. It would be nice to find a reliable test
- * to detect -O3 images in advance.
- */
- if (BLOCKVECTOR_NBLOCKS (bv) > 3)
- qsort (&BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK),
- BLOCKVECTOR_NBLOCKS (bv) - FIRST_LOCAL_BLOCK,
- sizeof (struct block *),
- compare_blocks);
-
- {
- register CORE_ADDR high = 0;
- register int i, j = BLOCKVECTOR_NBLOCKS (bv);
-
- for (i = FIRST_LOCAL_BLOCK; i < j; i++)
- if (high < BLOCK_END (BLOCKVECTOR_BLOCK (bv, i)))
- high = BLOCK_END (BLOCKVECTOR_BLOCK (bv, i));
- BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = high;
- }
-
- BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) =
- BLOCK_START (BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK));
-
- BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) =
- BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
- BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) =
- BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
-}
-\f
-
-/* Constructor/restructor/destructor procedures */
-
-/* Allocate a new symtab for NAME. Needs an estimate of how many symbols
- MAXSYMS and linenumbers MAXLINES we'll put in it */
-
-static struct symtab *
-new_symtab (name, maxsyms, maxlines, objfile)
- char *name;
- int maxsyms;
- int maxlines;
- struct objfile *objfile;
-{
- struct symtab *s = allocate_symtab (name, objfile);
-
- LINETABLE (s) = new_linetable (maxlines);
-
- /* All symtabs must have at least two blocks */
- BLOCKVECTOR (s) = new_bvect (2);
- BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK) = new_block (maxsyms);
- BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK) = new_block (maxsyms);
- BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)) =
- BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
-
- s->free_code = free_linetable;
-
- return (s);
-}
-
-/* Allocate a new partial_symtab NAME */
-
-static struct partial_symtab *
-new_psymtab (name, objfile)
- char *name;
- struct objfile *objfile;
-{
- struct partial_symtab *psymtab;
-
- psymtab = allocate_psymtab (name, objfile);
-
- /* Keep a backpointer to the file's symbols */
-
- psymtab->read_symtab_private = ((char *)
- obstack_alloc (&objfile->psymbol_obstack,
- sizeof (struct symloc)));
- memset ((PTR) psymtab->read_symtab_private, 0, sizeof (struct symloc));
- CUR_BFD (psymtab) = cur_bfd;
-
- /* The way to turn this into a symtab is to call... */
- psymtab->read_symtab = mipscoff_psymtab_to_symtab;
- return (psymtab);
-}
-
-
-/* Allocate a linetable array of the given SIZE. Since the struct
- already includes one item, we subtract one when calculating the
- proper size to allocate. */
-
-static struct linetable *
-new_linetable (size)
- int size;
-{
- struct linetable *l;
-
- size = (size - 1) * sizeof (l->item) + sizeof (struct linetable);
- l = (struct linetable *) xmalloc (size);
- l->nitems = 0;
- return l;
-}
-
-/* Oops, too big. Shrink it. This was important with the 2.4 linetables,
- I am not so sure about the 3.4 ones.
-
- Since the struct linetable already includes one item, we subtract one when
- calculating the proper size to allocate. */
-
-static struct linetable *
-shrink_linetable (lt)
- struct linetable *lt;
-{
-
- return (struct linetable *) xrealloc ((PTR) lt,
- (sizeof (struct linetable)
- + ((lt->nitems - 1)
- * sizeof (lt->item))));
-}
-
-/* Allocate and zero a new blockvector of NBLOCKS blocks. */
-
-static struct blockvector *
-new_bvect (nblocks)
- int nblocks;
-{
- struct blockvector *bv;
- int size;
-
- size = sizeof (struct blockvector) + nblocks * sizeof (struct block *);
- bv = (struct blockvector *) xzalloc (size);
-
- BLOCKVECTOR_NBLOCKS (bv) = nblocks;
-
- return bv;
-}
-
-/* Allocate and zero a new block of MAXSYMS symbols */
-
-static struct block *
-new_block (maxsyms)
- int maxsyms;
-{
- int size = sizeof (struct block) + (maxsyms - 1) * sizeof (struct symbol *);
-
- return (struct block *) xzalloc (size);
-}
-
-/* Ooops, too big. Shrink block B in symtab S to its minimal size.
- Shrink_block can also be used by add_symbol to grow a block. */
-
-static struct block *
-shrink_block (b, s)
- struct block *b;
- struct symtab *s;
-{
- struct block *new;
- struct blockvector *bv = BLOCKVECTOR (s);
- int i;
-
- /* Just reallocate it and fix references to the old one */
-
- new = (struct block *) xrealloc ((PTR) b,
- (sizeof (struct block)
- + ((BLOCK_NSYMS (b) - 1)
- * sizeof (struct symbol *))));
-
- /* Should chase pointers to old one. Fortunately, that`s just
- the block`s function and inferior blocks */
- if (BLOCK_FUNCTION (new) && SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) == b)
- SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) = new;
- for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++)
- if (BLOCKVECTOR_BLOCK (bv, i) == b)
- BLOCKVECTOR_BLOCK (bv, i) = new;
- else if (BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) == b)
- BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) = new;
- return new;
-}
-
-/* Create a new symbol with printname NAME */
-
-static struct symbol *
-new_symbol (name)
- char *name;
-{
- struct symbol *s = ((struct symbol *)
- obstack_alloc (¤t_objfile->symbol_obstack,
- sizeof (struct symbol)));
-
- memset ((PTR) s, 0, sizeof (*s));
- SYMBOL_NAME (s) = name;
- return s;
-}
-
-/* Create a new type with printname NAME */
-
-static struct type *
-new_type (name)
- char *name;
-{
- struct type *t;
-
- t = alloc_type (current_objfile);
- TYPE_NAME (t) = name;
- TYPE_CPLUS_SPECIFIC (t) = (struct cplus_struct_type *) &cplus_struct_default;
- return t;
-}
-\f
-
-/* Things used for calling functions in the inferior.
- These functions are exported to our companion
- mips-tdep.c file and are here because they play
- with the symbol-table explicitly. */
-
-/* Sigtramp: make sure we have all the necessary information
- about the signal trampoline code. Since the official code
- from MIPS does not do so, we make up that information ourselves.
- If they fix the library (unlikely) this code will neutralize itself. */
-
-static void
-fixup_sigtramp ()
-{
- struct symbol *s;
- struct symtab *st;
- struct block *b, *b0;
-
- sigtramp_address = -1;
-
- /* We know it is sold as sigvec */
- s = lookup_symbol ("sigvec", 0, VAR_NAMESPACE, 0, NULL);
-
- /* Most programs do not play with signals */
- if (s == 0)
- s = lookup_symbol ("_sigtramp", 0, VAR_NAMESPACE, 0, NULL);
- else
- {
- b0 = SYMBOL_BLOCK_VALUE (s);
-
- /* A label of sigvec, to be more precise */
- s = lookup_symbol ("sigtramp", b0, VAR_NAMESPACE, 0, NULL);
- }
-
- /* But maybe this program uses its own version of sigvec */
- if (s == 0)
- return;
-
- /* Did we or MIPSco fix the library ? */
- if (SYMBOL_CLASS (s) == LOC_BLOCK)
- {
- sigtramp_address = BLOCK_START (SYMBOL_BLOCK_VALUE (s));
- sigtramp_end = BLOCK_END (SYMBOL_BLOCK_VALUE (s));
- return;
- }
-
- sigtramp_address = SYMBOL_VALUE (s);
- sigtramp_end = sigtramp_address + 0x88; /* black magic */
-
- /* But what symtab does it live in ? */
- st = find_pc_symtab (SYMBOL_VALUE (s));
-
- /*
- * Ok, there goes the fix: turn it into a procedure, with all the
- * needed info. Note we make it a nested procedure of sigvec,
- * which is the way the (assembly) code is actually written.
- */
- SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
- SYMBOL_CLASS (s) = LOC_BLOCK;
- SYMBOL_TYPE (s) = init_type (TYPE_CODE_FUNC, 4, 0, (char *) NULL,
- (struct objfile *) NULL);
- TYPE_TARGET_TYPE (SYMBOL_TYPE (s)) = builtin_type_void;
-
- /* Need a block to allocate MIPS_EFI_SYMBOL_NAME in */
- b = new_block (1);
- SYMBOL_BLOCK_VALUE (s) = b;
- BLOCK_START (b) = sigtramp_address;
- BLOCK_END (b) = sigtramp_end;
- BLOCK_FUNCTION (b) = s;
- BLOCK_SUPERBLOCK (b) = BLOCK_SUPERBLOCK (b0);
- add_block (b, st);
- sort_blocks (st);
-
- /* Make a MIPS_EFI_SYMBOL_NAME entry for it */
- {
- struct mips_extra_func_info *e =
- ((struct mips_extra_func_info *)
- xzalloc (sizeof (struct mips_extra_func_info)));
-
- e->numargs = 0; /* the kernel thinks otherwise */
- /* align_longword(sigcontext + SIGFRAME) */
- e->pdr.frameoffset = 0x150;
- e->pdr.framereg = SP_REGNUM;
- e->pdr.pcreg = 31;
- e->pdr.regmask = -2;
- e->pdr.regoffset = -(41 * sizeof (int));
- e->pdr.fregmask = -1;
- e->pdr.fregoffset = -(37 * sizeof (int));
- e->pdr.isym = (long) s;
-
- current_objfile = st->objfile; /* Keep new_symbol happy */
- s = new_symbol (MIPS_EFI_SYMBOL_NAME);
- SYMBOL_VALUE (s) = (int) e;
- SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE;
- SYMBOL_CLASS (s) = LOC_CONST;
- SYMBOL_TYPE (s) = builtin_type_void;
- current_objfile = NULL;
- }
-
- BLOCK_SYM (b, BLOCK_NSYMS (b)++) = s;
-}
-
-
-/* Fake up identical offsets for all sections. */
-
-struct section_offsets *
-mipscoff_symfile_offsets (objfile, addr)
- struct objfile *objfile;
- CORE_ADDR addr;
-{
- struct section_offsets *section_offsets;
- int i;
-
- section_offsets = ((struct section_offsets *)
- obstack_alloc (&objfile->psymbol_obstack,
- (sizeof (struct section_offsets)
- + (sizeof (section_offsets->offsets)
- * (SECT_OFF_MAX - 1)))));
-
- for (i = 0; i < SECT_OFF_MAX; i++)
- ANOFFSET (section_offsets, i) = addr;
-
- return section_offsets;
-}
-\f
-/* Initialization */
-
-static struct sym_fns ecoff_sym_fns =
-{
- "ecoff", /* sym_name: name or name prefix of BFD target type */
- 5, /* sym_namelen: number of significant sym_name chars */
- mipscoff_new_init, /* sym_new_init: init anything gbl to entire symtab */
- mipscoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */
- mipscoff_symfile_read, /* sym_read: read a symbol file into symtab */
- mipscoff_symfile_finish, /* sym_finish: finished with file, cleanup */
- mipscoff_symfile_offsets, /* sym_offsets: dummy FIXME til implem sym reloc */
- NULL /* next: pointer to next struct sym_fns */
-};