- /* 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 */
- };
-
- TIR t[1];
- struct type *tp = 0;
- char *fmt;
- int i;
- union aux_ext *tax;
- int type_code;
-
- /* 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, 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 (UNSAFE_DATA_ADDR(tp))
- tp = init_type(type_code, 0, 0, 0, (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, 0);
- TYPE_CODE(tp) = type_code;
- }
- if (TYPE_NAME(tp) == NULL || strcmp(TYPE_NAME(tp), name) != 0)
- TYPE_NAME(tp) = obsavestring(name, strlen(name),
- ¤t_objfile -> type_obstack);
- }
-
- /* Deal with range types */
- if (t->bt == btRange) {
- struct field *f;
-
- TYPE_NFIELDS (tp) = 2;
- TYPE_FIELDS (tp) =
- (struct field *) obstack_alloc (¤t_objfile -> type_obstack,
- 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;
- union aux_ext *ax;
- int bigend;
-{
- int off;
- struct type *t;
-
- /* Used in array processing */
- int rf, id;
- FDR *fh;
- struct field *f;
- 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;
- t = init_type(TYPE_CODE_ARRAY, 0, 0, 0, (struct objfile *) NULL);
- TYPE_TARGET_TYPE(t) = *tpp;
-
- /* Determine and record the domain type (type of index) */
- ecoff_swap_rndx_in (bigend, ax, &rndx);
- id = rndx.index;
- rf = rndx.rfd;
- if (rf == 0xfff) {
- ax++;
- rf = AUX_GET_ISYM (bigend, ax);
- off++;
- }
- fh = get_rfd(cur_fd, rf);
-
- /* Fields are kept in an array */
- /* FIXME - Memory leak! */
- if (TYPE_NFIELDS(t))
- TYPE_FIELDS(t) = (struct field*)
- xrealloc((char *) TYPE_FIELDS(t),
- (TYPE_NFIELDS(t)+1) * sizeof(struct field));
- else
- TYPE_FIELDS(t) = (struct field*)
- xzalloc(sizeof(struct field));
- f = &(TYPE_FIELD(t,TYPE_NFIELDS(t)));
- TYPE_NFIELDS(t)++;
- memset(f, 0, sizeof(struct field));
-
-/* XXX */ f->type = parse_type(fh->iauxBase + id * sizeof(union aux_ext),
- &f->bitsize, bigend);
-
- 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 */
-
- /* 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);
-
- TYPE_LENGTH(t) = (upper < 0) ? 0 :
- (upper - lower + 1) * (rf >> 3);
- *tpp = t;
- return 4 + off;
-
- case tqVol:
- /* Volatile -- 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 make up the
- extra information we need into a special symbol that we insert
- 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.
- The procedure's code ends at BOUND */
-
-static
-parse_procedure(pr, bound)
- PDR *pr;
-{
- struct symbol *s, *i;
- SYMR *sh = (SYMR*)pr->isym;
- struct block *b;
- struct mips_extra_func_info *e;
- char name[100];
- char *sh_name;
-
- /* Reuse the MIPS record */
- e = (struct mips_extra_func_info *) pr;
- e->numargs = lookup_numargs(pr->adr);
-
- /* Make up our special symbol */
- i = new_symbol(".gdbinfo.");
- SYMBOL_VALUE(i) = (int)e;
- SYMBOL_NAMESPACE(i) = LABEL_NAMESPACE;
- SYMBOL_CLASS(i) = LOC_CONST;
- SYMBOL_TYPE(i) = builtin_type_void;
-
- /* Make up a name for static procedures. Sigh. */
- if (sh == (SYMR*)-1) {
- sprintf(name,".static_procedure@%x",pr->adr);
- sh_name = savestring(name, strlen(name));
- s = NULL;
- }
- else {
- sh_name = (char*)sh->iss;
- s = mylookup_symbol(sh_name, top_stack->cur_block,
- VAR_NAMESPACE, LOC_BLOCK);
- }
- if (s != 0) {
- b = SYMBOL_BLOCK_VALUE(s);
- } else {
- 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;
- BLOCK_END(b) = bound;
- BLOCK_SUPERBLOCK(b) = top_stack->cur_block;
- add_block(b, top_stack->cur_st);
- }
- e->isym = (long)s;
- add_symbol(i,b);
-}
-
-/* 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
-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 = (FDR*)(cur_hdr->cbFdOffset) + cur_fd;
- ax = (union aux_ext *)cur_fdr->iauxBase;
- } else {
- cur_fdr = (FDR*)(cur_hdr->cbFdOffset);
- ax = 0;
- }
- top_stack->cur_st = cur_stab;
- top_stack->cur_block = BLOCKVECTOR_BLOCK(BLOCKVECTOR(top_stack->cur_st),
- GLOBAL_BLOCK);
-
- /* 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++;
- if (info_verbose)
- printf_filtered("Warning: %s `%s' is undefined (in %s)\n", what,
- es->asym.iss, fdr_name(cur_fdr->rss));
- return;
- }
-
- switch (es->asym.st) {
- case stProc:
- /* If we have full symbols we do not need more */
- if (skip_procedures)
- return;
- if (mylookup_symbol (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, bigend);
- 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
-parse_lines(fh, lt)
- FDR *fh;
- struct linetable *lt;
-{
- unsigned char *base = (unsigned char*)fh->cbLineOffset;
- int i, j, k;
- int delta, count, lineno = 0;
- PDR *pr;
-
- if (base == 0)
- return;
-
- /* Scan by procedure descriptors */
- i = 0; j = 0, k = 0;
- for (pr = (PDR*)IPDFIRST(cur_hdr,fh); j < fh->cpd; j++, pr++) {
- int l, halt;
-
- /* 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 = (unsigned char*)pr->cbLineOffset;
- l = pr->adr >> 2; /* in words */
- halt += (pr->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.
-
- Parses the symtab described by the global symbolic header CUR_HDR.
- END_OF_TEXT_SEG gives the address just after the text segment for
- the symtab we are reading. */
-
-static void
-parse_partial_symbols(end_of_text_seg, objfile)
- int end_of_text_seg;
- struct objfile *objfile;
-{
- int f_idx, s_idx;
-/* int stat_idx, h_max;*/
- HDRR *hdr = cur_hdr;
- /* Running pointers */
- FDR *fh;
- RFDT *rh;
- register EXTR *esh;
- register 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;
-
- 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 = 0;
-
- /*
- * 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 1 over external syms: Presize and partition the list */
- for (s_idx = 0; s_idx < hdr->iextMax; s_idx++) {
- esh = (EXTR *) (hdr->cbExtOffset) + s_idx;
- fdr_to_pst[esh->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 */
- for (s_idx = 0; s_idx < hdr->iextMax; s_idx++) {
- enum minimal_symbol_type ms_type = mst_text;
- esh = (EXTR *) (hdr->cbExtOffset) + s_idx;
-
- extern_tab[fdr_to_pst[esh->ifd].globals_offset
- + fdr_to_pst[esh->ifd].n_globals++] = esh;
-
- if (esh->asym.sc == scUndefined || esh->asym.sc == scNil)
- continue;
-
- switch (esh->asym.st) {
- case stProc:
- break;
- case stGlobal:
- ms_type = mst_data;
- break;
- case stLabel:
- break;
- default:
- ms_type = mst_unknown;
- complain (&unknown_ext_complaint,
- (char *)(esh->asym.iss));
- }
- prim_record_minimal_symbol ((char *)(esh->asym.iss),
- esh->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 = f_idx + (FDR *)(cur_hdr->cbFdOffset);
-
- if (fh->csym == 0) {
- fdr_to_pst[f_idx].pst = NULL;
- continue;
- }
- pst = start_psymtab_common (objfile, 0, (char*)fh->rss,
- 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));
-
- save_pst = pst;
- /* Make everything point to everything. */
- FDR_IDX(pst) = f_idx;
- fdr_to_pst[f_idx].pst = pst;
- fh->ioptBase = (int)pst;
-
- CUR_HDR(pst) = cur_hdr;
-
- /* The way to turn this into a symtab is to call... */
- pst->read_symtab = mipscoff_psymtab_to_symtab;
-
- pst->texthigh = pst->textlow;
-
-#if 0 /* This is done in start_psymtab_common */
- pst->globals_offset = global_psymbols.next - global_psymbols.list;
- pst->statics_offset = static_psymbols.next - static_psymbols.list;
-
- pst->n_global_syms = 0;
- pst->n_static_syms = 0;
-#endif
-
- /* 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). */
- if (fh->csym >= 2
- && strcmp((char *)(((SYMR *)fh->isymBase)[1].iss),
- stabs_symbol) == 0) {
- for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) {
- int type_code;
- char *namestring;
- sh = cur_sdx + (SYMR *) fh->isymBase;
- type_code = MIPS_UNMARK_STAB(sh->index);
- if (!MIPS_IS_STAB(sh)) {
- if (sh->st == stProc || sh->st == stStaticProc) {
- long procaddr = sh->value;
- sh = AUX_GET_ISYM (fh->fBigendian,
- sh->index + (union aux_ext *)(fh->iauxBase))
- + (SYMR *) fh->isymBase - 1;
- if (sh->st == stEnd) {
- long high = procaddr + sh->value;
- if (high > pst->texthigh)
- pst->texthigh = high;
- }
- }
- continue;
- }
-#define SET_NAMESTRING() namestring = (char*)sh->iss
-#define CUR_SYMBOL_TYPE type_code
-#define CUR_SYMBOL_VALUE sh->value
-#define START_PSYMTAB(ofile,addr,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 addr 0 /* FIXME, should be offset of addresses */
-#define HANDLE_RBRAC(val) \
- if ((val) > save_pst->texthigh) save_pst->texthigh = (val);
-#include "partial-stab.h"
-#undef addr
- }
- }
- else {
- register struct partial_symbol *psym;
- for (cur_sdx = 0; cur_sdx < fh->csym; ) {
- char *name;
- int class;
- sh = cur_sdx + (SYMR *) fh->isymBase;
-
- if (MIPS_IS_STAB(sh)) {
- cur_sdx++;
- continue;
- }
-
- if (sh->sc == scUndefined || sh->sc == scNil ||
- sh->index == 0xfffff) {
- /* FIXME, premature? */
- cur_sdx++;
- continue;
- }
-
- name = (char *)(sh->iss);
-
- switch (sh->st) {
- long high;
- long procaddr;
- case stProc: /* Asm labels apparently */
- case stStaticProc: /* Function */
- ADD_PSYMBOL_TO_LIST(name, strlen(name),
- VAR_NAMESPACE, LOC_BLOCK,
- objfile->static_psymbols, sh->value);
- /* Skip over procedure to next one. */
- cur_sdx = AUX_GET_ISYM (fh->fBigendian,
- sh->index + (union aux_ext *)fh->iauxBase);
- procaddr = sh->value;
-
- sh = cur_sdx + (SYMR *) fh->isymBase - 1;
- 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 stBlock: /* { }, str, un, enum*/
- if (sh->sc == scInfo) {
- ADD_PSYMBOL_TO_LIST(name, strlen(name),
- STRUCT_NAMESPACE, LOC_TYPEDEF,
- objfile->static_psymbols, sh->value);
- }
- /* Skip over the block */
- cur_sdx = sh->index;
- continue;
- case stFile: /* File headers */
- case stLabel: /* Labels */
- case stEnd: /* Ends of files */
- goto skip;
- default:
- /* Both complaints are valid: one gives symbol name,
- the other the offending symbol type. */
- complain (&unknown_sym_complaint, (char *)sh->iss);
- 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);
- 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++) {
- enum address_class class;
- if ((*ext_ptr)->ifd != f_idx)
- abort();
- sh = &(*ext_ptr)->asym;
- switch (sh->st) {
- case stProc:
- class = LOC_BLOCK;
- break;
- case stLabel:
- class = LOC_LABEL;
- break;
- default:
- complain (&unknown_ext_complaint, sh->iss);
- case stGlobal:
- class = LOC_STATIC;
- break;
- }
- if (objfile->global_psymbols.next >=
- objfile->global_psymbols.list + objfile->global_psymbols.size)
- extend_psymbol_list (&objfile->global_psymbols, objfile);
- psym = objfile->global_psymbols.next++;
- SYMBOL_NAME (psym) = (char*)sh->iss;
- SYMBOL_NAMESPACE (psym) = VAR_NAMESPACE;
- SYMBOL_CLASS (psym) = class;
- SYMBOL_VALUE_ADDRESS (psym) = (CORE_ADDR)sh->value;
- }
- }
-
- end_psymtab (save_pst, psymtab_include_list, includes_used,
- -1, save_pst->texthigh,
- dependency_list, dependencies_used);
- if (entry_point < save_pst->texthigh
- && entry_point >= save_pst->textlow) {
- startup_file_start = save_pst->textlow;
- startup_file_end = save_pst->texthigh;
- }
- }
-
- /* Mark the last code address, and remember it for later */
- hdr->cbDnOffset = end_of_text_seg;
-
- /* Now scan the FDRs for dependencies */
- for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) {
- int s_id0 = 0;
- fh = f_idx + (FDR *)(cur_hdr->cbFdOffset);
- 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 = (RFDT *) (fh->rfdBase) + s_id0;
- 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 = (RFDT *) (fh->rfdBase) + s_idx;
- 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 = (FDR *) (cur_hdr->cbFdOffset) + 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(fh->rss, 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 = (RFDT *) (fh->rfdBase) + s_id0;
- 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 = (RFDT *) (fh->rfdBase) + s_idx;
-
- pst->dependencies[s_idx-s_id0] = parse_fdr(*rh, lev+1, objfile);
- }
-
- return pst;
-}
-#endif
-
-static char*
-mips_next_symbol_text ()
-{
- cur_sdx++;
- return (char*)((SYMR *)cur_fdr->isymBase)[cur_sdx].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. */
-
-static void
-psymtab_to_symtab_1(pst, filename)
- struct partial_symtab *pst;
- char *filename;
-{
- int have_stabs;
- int i, f_max;
- struct symtab *st;
- FDR *fh;
- int maxlines;
- struct linetable *lines;
-
- if (pst->readin)
- return;
- pst->readin = 1;
-
- /* How many symbols will we need */
- /* FIXME, this does not count enum values. */
- f_max = pst->n_global_syms + pst->n_static_syms;
- if (FDR_IDX(pst) == -1) {
- fh = 0;
- maxlines = 0;
- } else {
- fh = (FDR *) (cur_hdr->cbFdOffset) + FDR_IDX(pst);
- f_max += fh->csym + fh->cpd;
- maxlines = 2 * fh->cline;
- }
-
- /* See comment in parse_partial_symbols about the @stabs sentinel. */
- have_stabs =
- fh && fh->csym >= 2
- && strcmp((char *)(((SYMR *)fh->isymBase)[1].iss), stabs_symbol)
- == 0;
-
- if (!have_stabs) {
- if (fh)
- st = new_symtab (pst->filename, 2 * f_max, maxlines,
- pst->objfile);
- else
- st = new_symtab ("unknown", f_max, 0, pst->objfile);
- lines = LINETABLE(st);
- pending_list = (struct mips_pending **) cur_hdr->cbOptOffset;
- if (pending_list == 0) {
- pending_list = (struct mips_pending **)
- xzalloc(cur_hdr->ifdMax * sizeof(struct mips_pending *));
- cur_hdr->cbOptOffset = (int)pending_list;
- }
- }
-
- /* 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);
- }
-
- cur_fdr = fh;
- /* Now read the symbols for this symtab */
-
- current_objfile = pst -> objfile;
- if (!have_stabs) {
- cur_fd = FDR_IDX(pst);
- cur_stab = st;
-
- /* Get a new lexical context */
-
- push_parse_stack();
- top_stack->cur_st = cur_stab;
- top_stack->cur_block = BLOCKVECTOR_BLOCK(BLOCKVECTOR(cur_stab),
- 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;
- }
-
- /* Parse locals and procedures */
- if (fh) {
- SYMR *sh;
- PDR *pr;
- int f_idx = cur_fd;
- char *fh_name = (char*)fh->rss;
-
- /* Parse local symbols first */
-
-
- if (have_stabs) {
- if (fh->csym <= 2)
- {
- current_objfile = NULL;
- return;
- }
- for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) {
- register SYMR *sh = cur_sdx + (SYMR *) fh->isymBase;
- char *name = (char*)sh->iss;
- CORE_ADDR valu = sh->value;
- if (MIPS_IS_STAB(sh)) {
- int type_code = MIPS_UNMARK_STAB(sh->index);
- process_one_symbol (type_code, 0, valu, name, /*FIXME*/ 0);
- }
- else if (sh->st == stLabel && sh->index != indexNil) {
- /* Handle encoded stab line number. */
- record_line (current_subfile, sh->index, valu);
- }
- }
- st = end_symtab (pst->texthigh, 0, 0, pst->objfile);
- }
- else {
- /* BOUND is the highest core address of this file's procedures */
- int bound = cur_fd == cur_hdr->ifdMax - 1 ? cur_hdr->cbDnOffset
- : fh[1].adr;
- for (cur_sdx = 0; cur_sdx < fh->csym; ) {
- sh = (SYMR *) (fh->isymBase) + cur_sdx;
- cur_sdx += parse_symbol(sh, fh->iauxBase, fh->fBigendian);
- }
-
- /* Procedures next, note we need to look-ahead to
- find out where the procedure's code ends */
-
- if (fh->cpd > 0)
- for (i = 0; i < fh->cpd-1; i++) {
- pr = (PDR *) (IPDFIRST(cur_hdr, fh)) + i;
- parse_procedure(pr, pr[1].adr); /* next proc up */
- }
- if (fh->cpd) {
- pr = (PDR *) (IPDFIRST(cur_hdr, fh)) + i;
- parse_procedure(pr, bound); /* next file up */
- }
- /* Linenumbers. At the end, check if we can save memory */
- parse_lines(fh, lines);
- if (lines->nitems < fh->cline)
- lines = shrink_linetable(lines);
- }
-
- }
- if (!have_stabs) {
- EXTR **ext_ptr;
- 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? */
- /* parse_external clobbers top_stack->cur_block and ->cur_st here. */
- top_stack->blocktype = stFile;
- top_stack->maxsyms =
- cur_hdr->isymMax + cur_hdr->ipdMax + cur_hdr->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;
- int 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, 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);
- 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 f will be. In any event, we collect the name for
- * the type here. Which is why we made a first pass at
- * strings.
- */
- sh = (SYMR *) (fh->isymBase) + rn->index;
-
- /* Careful, we might be looking at .o files */
- *pname = (UNSAFE_DATA_ADDR(sh->iss)) ? "<undefined>" :
- (char *) sh->iss;
-
- /* Have we parsed it ? */
- if ((!UNSAFE_DATA_ADDR(sh->value)) && (sh->st == stParsed)) {
- t = (struct type *) sh->value;
- *tpp = t;
- } else {
- /* Avoid duplicates */
- struct mips_pending *p = is_pending_symbol(fh, sh);
- if (p)
- *tpp = p->t;
- else {
- *tpp = init_type(type_code, 0, 0, 0, (struct objfile *) NULL);
- add_pending(fh, sh, *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
- && !strcmp(SYMBOL_NAME(sym), name))
- return sym;
- bot++;
- }
- if (block = BLOCK_SUPERBLOCK (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, s->name);
- /* 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((char *) 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
-/* Comparison functions, used when sorting things */
-
-/* Symtabs must be ordered viz the code segments they cover */
-
-static int
-compare_symtabs( s1, s2)
- struct symtab **s1, **s2;
-{
- /* "most specific" first */
-
- register struct block *b1, *b2;
- b1 = BLOCKVECTOR_BLOCK(BLOCKVECTOR(*s1),GLOBAL_BLOCK);
- b2 = BLOCKVECTOR_BLOCK(BLOCKVECTOR(*s2),GLOBAL_BLOCK);
- if (BLOCK_END(b1) == BLOCK_END(b2))
- return BLOCK_START(b1) - BLOCK_START(b2);
- return BLOCK_END(b1) - BLOCK_END(b2);
-}
-
-
-/* Partial Symtabs, same */
-
-static int
-compare_psymtabs( s1, s2)
- struct partial_symtab **s1, **s2;
-{
- /* Perf twist: put the ones with no code at the end */
-
- register int a = (*s1)->textlow;
- register int b = (*s2)->textlow;
- if (a == 0)
- return b;
- if (b == 0)
- return -a;
- return a - b;
-}
-
-
-/* Blocks with a smaller low bound should come first */
-
-static int compare_blocks(b1,b2)
- struct block **b1, **b2;
-{
- register int addr_diff;
-
- addr_diff = (BLOCK_START((*b1))) - (BLOCK_START((*b2)));
- if (addr_diff == 0)
- return (BLOCK_END((*b1))) - (BLOCK_END((*b2)));
- return addr_diff;
-}
-
-\f
-/* Sorting and reordering procedures */
-
-/* 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;
-
- /* FIXME -- why (char *) -1 rather than NULL? */
- psymtab = allocate_psymtab (name == (char *) -1 ? "<no name>" : name,
- objfile);
-
- /* Keep a backpointer to the file's symbols */
-
- psymtab -> read_symtab_private = (char *)
- obstack_alloc (&objfile->psymbol_obstack, sizeof (struct symloc));
- CUR_HDR(psymtab) = cur_hdr;
-
- /* 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 */
-
-static struct linetable *
-new_linetable(size)
-{
- struct linetable *l;
-
- size = size * 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 */
-
-static struct linetable *
-shrink_linetable(lt)
- struct linetable * lt;
-{
- struct linetable *l = new_linetable(lt->nitems);
-
- memcpy(l, lt, lt->nitems * sizeof(l->item) + sizeof(struct linetable));
- free (lt);
- return l;
-}
-
-/* Allocate and zero a new blockvector of NBLOCKS blocks. */
-
-static
-struct blockvector *
-new_bvect(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 size = sizeof(struct block) + (maxsyms-1) * sizeof(struct symbol *);
- struct block *b = (struct block *)xzalloc(size);
-
- return b;
-}
-
-/* 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 ((char *)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 (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)
- return;
-
- 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;
-
- sigtramp_address = SYMBOL_VALUE(s);
- sigtramp_end = sigtramp_address + 0x88; /* black magic */
-
- /* Did we or MIPSco fix the library ? */
- if (SYMBOL_CLASS(s) == LOC_BLOCK)
- return;
-
- /* 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, 0, (struct objfile *) NULL);
- TYPE_TARGET_TYPE(SYMBOL_TYPE(s)) = builtin_type_void;
-
- /* Need a block to allocate .gdbinfo. 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 .gdbinfo. 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->framesize = 0x150;
- e->framereg = SP_REGNUM;
- e->pcreg = 31;
- e->regmask = -2;
- e->regoffset = -(41 * sizeof(int));
- e->fregmask = -1;
- e->fregoffset = -(37 * sizeof(int));
- e->isym = (long)s;
-
- s = new_symbol(".gdbinfo.");
- SYMBOL_VALUE(s) = (int) e;
- SYMBOL_NAMESPACE(s) = LABEL_NAMESPACE;
- SYMBOL_CLASS(s) = LOC_CONST;
- SYMBOL_TYPE(s) = builtin_type_void;
- }
-
- BLOCK_SYM(b,BLOCK_NSYMS(b)++) = s;
-}
-\f
-/* Initialization */
-
-static struct sym_fns ecoff_sym_fns = {"ecoff", 5,
- mipscoff_new_init, mipscoff_symfile_init,
- mipscoff_symfile_read};
-
-_initialize_mipsread ()
-{
- add_symtab_fns (&ecoff_sym_fns);
-
- /* Missing basic types */
- builtin_type_string =
- init_type (TYPE_CODE_PASCAL_ARRAY,
- 1, 0, "string",
- (struct objfile *) NULL);
- builtin_type_complex =
- init_type(TYPE_CODE_FLT,
- 2 * sizeof(float), 0, "complex",
- (struct objfile *) NULL);
- builtin_type_double_complex =
- init_type(TYPE_CODE_FLT,
- 2 * sizeof(double), 0, "double_complex",
- (struct objfile *) NULL);
- builtin_type_fixed_dec =
- init_type(TYPE_CODE_INT, sizeof(int),
- 0, "fixed_decimal",
- (struct objfile *) NULL);
- builtin_type_float_dec =
- init_type(TYPE_CODE_FLT, sizeof(double),
- 0, "floating_decimal",
- (struct objfile *) NULL);