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-rw-r--r--gdb/mipsread.c229
1 files changed, 121 insertions, 108 deletions
diff --git a/gdb/mipsread.c b/gdb/mipsread.c
index 869c833..611d6f5 100644
--- a/gdb/mipsread.c
+++ b/gdb/mipsread.c
@@ -97,6 +97,9 @@ extern void sort_symtab_syms();
/* Various complaints about symbol reading that don't abort the process */
+struct complaint bad_file_number_complaint =
+ {"bad file number %d", 0, 0};
+
struct complaint unknown_ext_complaint =
{"unknown external symbol %s", 0, 0};
@@ -195,7 +198,6 @@ static struct linetable *new_linetable();
static struct blockvector *new_bvect();
static struct type *parse_type();
-static struct type *make_type();
static struct symbol *mylookup_symbol();
static struct block *shrink_block();
static void sort_blocks();
@@ -267,17 +269,18 @@ mipscoff_symfile_read(sf, addr, mainline)
if (val < 0)
perror_with_name (name);
- init_misc_bunches ();
- make_cleanup (discard_misc_bunches, 0);
+ init_minimal_symbol_collection ();
+ make_cleanup (discard_minimal_symbols, 0);
/* Now that the executable file is positioned at symbol table,
process it and define symbols accordingly. */
read_mips_symtab(sf->objfile, desc);
- /* Go over the misc symbol bunches and install them in vector. */
+ /* Install any minimal symbols that have been collected as the current
+ minimal symbols for this objfile. */
- condense_misc_bunches (!mainline);
+ install_minimal_symbols (sf -> objfile);
}
/* Exported procedure: Allocate zeroed memory */
@@ -319,7 +322,7 @@ mipscoff_psymtab_to_symtab(pst)
/* Match with global symbols. This only needs to be done once,
after all of the symtabs and dependencies have been read in. */
- scan_file_globals ();
+ scan_file_globals (pst->objfile);
if (info_verbose)
printf_filtered("done.\n");
@@ -1081,8 +1084,8 @@ data: /* Common code for symbols describing data */
TYPE_LENGTH(t) = sh->value;
TYPE_NFIELDS(t) = nfields;
TYPE_FIELDS(t) = f = (struct field*)
- obstack_alloc (symbol_obstack,
- nfields * sizeof (struct field));
+ obstack_alloc (&current_objfile -> type_obstack,
+ nfields * sizeof (struct field));
if (type_code == TYPE_CODE_ENUM) {
/* This is a non-empty enum. */
@@ -1094,7 +1097,7 @@ data: /* Common code for symbols describing data */
f->bitsize = 0;
enum_sym = (struct symbol *)
- obstack_alloc (symbol_obstack,
+ obstack_alloc (&objfile->symbol_obstack,
sizeof (struct symbol));
memset (enum_sym, 0, sizeof (struct symbol));
SYMBOL_NAME (enum_sym) = f->name;
@@ -1330,7 +1333,7 @@ static struct type *parse_type(ax, sh, bs)
ax += cross_ref(ax, &tp, type_code, &pn);
/* reading .o file ? */
if (UNSAFE_DATA_ADDR(tp))
- tp = make_type(type_code, 0, 0, 0);
+ tp = init_type(type_code, 0, 0, 0, (struct objfile *) NULL);
/* SOMEONE OUGHT TO FIX DBXREAD TO DROP "STRUCT" */
sprintf(name, fmt, pn);
@@ -1341,7 +1344,8 @@ static struct type *parse_type(ax, sh, bs)
TYPE_CODE(tp) = type_code;
}
if (TYPE_NAME(tp) == NULL || strcmp(TYPE_NAME(tp), name) != 0)
- TYPE_NAME(tp) = obsavestring(name, strlen(name));
+ TYPE_NAME(tp) = obsavestring(name, strlen(name),
+ &current_objfile -> type_obstack);
}
/* Deal with range types */
@@ -1350,12 +1354,14 @@ static struct type *parse_type(ax, sh, bs)
TYPE_NFIELDS (tp) = 2;
TYPE_FIELDS (tp) =
- (struct field *) obstack_alloc (symbol_obstack,
- 2 * sizeof (struct field));
- TYPE_FIELD_NAME (tp, 0) = "Low";
+ (struct field *) obstack_alloc (&current_objfile -> type_obstack,
+ 2 * sizeof (struct field));
+ TYPE_FIELD_NAME (tp, 0) = obsavestring ("Low", strlen ("Low"),
+ &current_objfile -> type_obstack);
TYPE_FIELD_BITPOS (tp, 0) = ax->dnLow;
ax++;
- TYPE_FIELD_NAME (tp, 1) = "High";
+ TYPE_FIELD_NAME (tp, 1) = obsavestring ("High", strlen ("High"),
+ &current_objfile -> type_obstack);
TYPE_FIELD_BITPOS (tp, 1) = ax->dnHigh;
ax++;
}
@@ -1416,7 +1422,7 @@ upgrade_type(tpp, tq, ax, sh)
case tqArray:
off = 0;
- t = make_type(TYPE_CODE_ARRAY, 0, 0, 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) */
@@ -1781,7 +1787,7 @@ parse_partial_symbols(end_of_text_seg, objfile)
/* Pass 2 over external syms: fill in external symbols */
for (s_idx = 0; s_idx < hdr->iextMax; s_idx++) {
- enum misc_function_type misc_type = mf_text;
+ enum minimal_symbol_type ms_type = mst_text;
esh = (EXTR *) (hdr->cbExtOffset) + s_idx;
extern_tab[fdr_to_pst[esh->ifd].globals_offset
@@ -1794,18 +1800,18 @@ parse_partial_symbols(end_of_text_seg, objfile)
case stProc:
break;
case stGlobal:
- misc_type = mf_data;
+ ms_type = mst_data;
break;
case stLabel:
break;
default:
- misc_type = mf_unknown;
+ ms_type = mst_unknown;
complain (&unknown_ext_complaint,
(char *)(esh->asym.iss));
}
- prim_record_misc_function ((char *)(esh->asym.iss),
- esh->asym.value,
- misc_type);
+ prim_record_minimal_symbol ((char *)(esh->asym.iss),
+ esh->asym.value,
+ ms_type);
}
/* Pass 3 over files, over local syms: fill in static symbols */
@@ -1838,11 +1844,13 @@ parse_partial_symbols(end_of_text_seg, objfile)
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
@@ -1985,7 +1993,7 @@ parse_partial_symbols(end_of_text_seg, objfile)
}
if (global_psymbols.next >=
global_psymbols.list + global_psymbols.size)
- extend_psymbol_list (&global_psymbols);
+ extend_psymbol_list (&global_psymbols, objfile);
psym = global_psymbols.next++;
SYMBOL_NAME (psym) = (char*)sh->iss;
SYMBOL_NAMESPACE (psym) = VAR_NAMESPACE;
@@ -2008,7 +2016,40 @@ parse_partial_symbols(end_of_text_seg, objfile)
/* Mark the last code address, and remember it for later */
hdr->cbDnOffset = end_of_text_seg;
- do_cleanups (old_chain);
+ /* 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 (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);
}
@@ -2070,7 +2111,7 @@ parse_fdr(f_idx, lev, objfile)
}
pst->number_of_dependencies = fh->crfd - s_id0;
pst->dependencies = (struct partial_symtab **)
- obstack_alloc (psymbol_obstack,
+ obstack_alloc (&objfile->psymbol_obstack,
pst->number_of_dependencies *
sizeof (struct partial_symtab *));
for (s_idx = s_id0; s_idx < fh->crfd; s_idx++) {
@@ -2170,6 +2211,7 @@ psymtab_to_symtab_1(pst, 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;
@@ -2201,7 +2243,10 @@ psymtab_to_symtab_1(pst, filename)
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;
@@ -2279,6 +2324,8 @@ psymtab_to_symtab_1(pst, filename)
/* Now link the psymtab and the symtab. */
pst->symtab = st;
+
+ current_objfile = NULL;
}
/* Ancillary parsing procedures. */
@@ -2337,7 +2384,7 @@ cross_ref(rn, tpp, type_code, pname)
if (p)
*tpp = p->t;
else {
- *tpp = make_type(type_code, 0, 0, 0);
+ *tpp = init_type(type_code, 0, 0, 0, (struct objfile *) NULL);
add_pending(fh, sh, *tpp);
}
}
@@ -2568,24 +2615,20 @@ struct symtab *
new_symtab(name, maxsyms, maxlines, objfile)
char *name;
{
- struct symtab *s = allocate_symtab (name, objfile);
+ struct symtab *s = allocate_symtab (name, objfile);
- LINETABLE(s) = new_linetable(maxlines);
+ 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);
+ /* 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;
+ s->free_code = free_linetable;
- /* Link the new symtab into the list of such. */
- s->next = symtab_list;
- symtab_list = s;
-
- return s;
+ return (s);
}
/* Allocate a new partial_symtab NAME */
@@ -2595,34 +2638,21 @@ new_psymtab(name, objfile)
char *name;
struct objfile *objfile;
{
- struct partial_symtab *pst;
-
- pst = (struct partial_symtab *)
- obstack_alloc (psymbol_obstack, sizeof (*pst));
- memset (pst, 0, sizeof (*pst));
-
- if (name == (char*)-1) /* FIXME -- why not null here? */
- pst->filename = "<no name>";
- else
- pst->filename = name;
-
- /* Chain it to its object file */
- pst->objfile = objfile;
- pst->objfile_chain = objfile->psymtabs;
- objfile->psymtabs = pst;
-
- pst->next = partial_symtab_list;
- partial_symtab_list = pst;
-
- /* Keep a backpointer to the file's symbols */
- pst->read_symtab_private = (char *) obstack_alloc (psymbol_obstack,
- sizeof (struct symloc));
- CUR_HDR(pst) = cur_hdr;
-
- /* The way to turn this into a symtab is to call... */
- pst->read_symtab = mipscoff_psymtab_to_symtab;
+ 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 */
- return pst;
+ 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);
}
@@ -2719,7 +2749,7 @@ new_symbol(name)
char *name;
{
struct symbol *s = (struct symbol *)
- obstack_alloc (symbol_obstack, sizeof (struct symbol));
+ obstack_alloc (&objfile->symbol_obstack, sizeof (struct symbol));
memset (s, 0, sizeof (*s));
SYMBOL_NAME(s) = name;
@@ -2733,41 +2763,14 @@ struct type *
new_type(name)
char *name;
{
- struct type *t = (struct type *)
- obstack_alloc (symbol_obstack, sizeof (struct type));
+ struct type *t;
- memset (t, 0, sizeof (*t));
- TYPE_VPTR_FIELDNO (t) = -1;
+ t = alloc_type (current_objfile);
TYPE_NAME(t) = name;
TYPE_CPLUS_SPECIFIC(t) = &cplus_struct_default;
return t;
}
-/* Create and initialize a new type with printname NAME.
- CODE and LENGTH are the initial info we put in,
- UNS says whether the type is unsigned or not. */
-
-static
-struct type *
-make_type(code, length, uns, name)
- enum type_code code;
- int length, uns;
- char *name;
-{
- register struct type *type;
-
- /* FIXME, I don't think this ever gets freed. */
- type = (struct type *) xzalloc(sizeof(struct type));
- TYPE_CODE(type) = code;
- TYPE_LENGTH(type) = length;
- TYPE_FLAGS(type) = uns ? TYPE_FLAG_UNSIGNED : 0;
- TYPE_NAME(type) = name;
- TYPE_VPTR_FIELDNO (type) = -1;
-
- if (code != TYPE_CODE_METHOD && code != TYPE_CODE_FUNC)
- TYPE_CPLUS_SPECIFIC(type) = &cplus_struct_default;
- return type;
-}
/* Things used for calling functions in the inferior.
These functions are exported to our companion
@@ -2821,7 +2824,7 @@ fixup_sigtramp()
*/
SYMBOL_NAMESPACE(s) = VAR_NAMESPACE;
SYMBOL_CLASS(s) = LOC_BLOCK;
- SYMBOL_TYPE(s) = make_type(TYPE_CODE_FUNC, 4, 0, 0);
+ 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 */
@@ -2872,14 +2875,24 @@ _initialize_mipsread ()
add_symtab_fns (&ecoff_sym_fns);
/* Missing basic types */
- builtin_type_string = make_type(TYPE_CODE_PASCAL_ARRAY,
- 1, 0, "string");
- builtin_type_complex = make_type(TYPE_CODE_FLT,
- 2 * sizeof(float), 0, "complex");
- builtin_type_double_complex = make_type(TYPE_CODE_FLT,
- 2 * sizeof(double), 0, "double_complex");
- builtin_type_fixed_dec = make_type(TYPE_CODE_INT, sizeof(int),
- 0, "fixed_decimal");
- builtin_type_float_dec = make_type(TYPE_CODE_FLT, sizeof(double),
- 0, "floating_decimal");
+ 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);
}
generated by cgit v1.1 at 2024-07-13 14:59:37 +0000