struct nextfield
{
struct nextfield *next;
+
+ /* This is the raw visibility from the stab. It is not checked
+ for being one of the visibilities we recognize, so code which
+ examines this field better be able to deal. */
int visibility;
+
struct field field;
} *list;
struct next_fnfieldlist
#define BELIEVE_PCC_PROMOTION 0
#endif
-#if 0
-/* I think this can go away, all current uses have been removed.
- GCC emits a few crazy types which can only be distinguished by the
- name (complex, long long on some machines), but I'd say fix GCC. */
-
-/* During some calls to read_type (and thus to read_range_type), this
- contains the name of the type being defined. Range types are only
- used in C as basic types. We use the name to distinguish the otherwise
- identical basic types "int" and "long" and their unsigned versions.
- FIXME, this should disappear with better type management. */
-
-static char *long_kludge_name;
-#endif
-
-#if 0
-struct complaint dbx_class_complaint =
-{
- "encountered DBX-style class variable debugging information.\n\
-You seem to have compiled your program with \
-\"g++ -g0\" instead of \"g++ -g\".\n\
-Therefore GDB will not know about your class variables", 0, 0
-};
-#endif
-
struct complaint invalid_cpp_abbrev_complaint =
{"invalid C++ abbreviation `%s'", 0, 0};
/* Check for and handle cretinous stabs symbol name continuation! */
#define STABS_CONTINUE(pp) \
do { \
- if (**(pp) == '\\') *(pp) = next_symbol_text (); \
+ if (**(pp) == '\\' || (**(pp) == '?' && (*(pp))[1] == '\0')) \
+ *(pp) = next_symbol_text (); \
} while (0)
-\f
-/* This is used by other symbol readers besides stabs, so for cleanliness
- should probably be in buildsym.c. */
-
-int
-hashname (name)
- char *name;
-{
- register char *p = name;
- register int total = p[0];
- register int c;
-
- c = p[1];
- total += c << 2;
- if (c)
- {
- c = p[2];
- total += c << 4;
- if (c)
- {
- total += p[3] << 6;
- }
- }
-
- /* Ensure result is positive. */
- if (total < 0)
- {
- total += (1000 << 6);
- }
- return (total % HASHSIZE);
-}
-
\f
/* Look up a dbx type-number pair. Return the address of the slot
where the type for that number-pair is stored.
{
name = stabs->stab[ii];
pp = (char*) strchr (name, ':');
+ while (pp[1] == ':')
+ {
+ pp += 2;
+ pp = (char *)strchr(pp, ':');
+ }
sym = find_symbol_in_list (symbols, name, pp-name);
if (!sym)
{
static char *type_synonym_name;
+#if !defined (REG_STRUCT_HAS_ADDR)
+#define REG_STRUCT_HAS_ADDR(gcc_p) 0
+#endif
+
/* ARGSUSED */
struct symbol *
define_symbol (valu, string, desc, type, objfile)
- unsigned int valu;
+ CORE_ADDR valu;
char *string;
int desc;
int type;
if (p == 0)
return 0;
+ while (p[1] == ':')
+ {
+ p += 2;
+ p = strchr(p, ':');
+ }
+
/* If a nameless stab entry, all we need is the type, not the symbol.
e.g. ":t10=*2" or a nameless enum like " :T16=ered:0,green:1,blue:2,;" */
nameless = (p == string || ((string[0] == ' ') && (string[1] == ':')));
SYMBOL_LANGUAGE (sym) = current_subfile -> language;
SYMBOL_NAME (sym) = (char *)
obstack_alloc (&objfile -> symbol_obstack, ((p - string) + 1));
- /* Open-coded bcopy--saves function call time. */
+ /* Open-coded memcpy--saves function call time. */
/* FIXME: Does it really? Try replacing with simple strcpy and
try it on an executable with a large symbol table. */
+ /* FIXME: considering that gcc can open code memcpy anyway, I
+ doubt it. xoxorich. */
{
register char *p1 = string;
register char *p2 = SYMBOL_NAME (sym);
double d = atof (p);
char *dbl_valu;
+ /* FIXME-if-picky-about-floating-accuracy: Should be using
+ target arithmetic to get the value. real.c in GCC
+ probably has the necessary code. */
+
/* FIXME: lookup_fundamental_type is a hack. We should be
creating a type especially for the type of float constants.
- Problem is, what type should it be? We currently have to
- read this in host floating point format, but what type
- represents a host format "double"?
+ Problem is, what type should it be?
Also, what should the name of this type be? Should we
be using 'S' constants (see stabs.texinfo) instead? */
SYMBOL_TYPE (sym) = lookup_fundamental_type (objfile,
FT_DBL_PREC_FLOAT);
dbl_valu = (char *)
- obstack_alloc (&objfile -> symbol_obstack, sizeof (double));
- memcpy (dbl_valu, &d, sizeof (double));
- /* Put it in target byte order, but it's still in host
- floating point format. */
- SWAP_TARGET_AND_HOST (dbl_valu, sizeof (double));
+ obstack_alloc (&objfile -> symbol_obstack,
+ TYPE_LENGTH (SYMBOL_TYPE (sym)));
+ store_floating (dbl_valu, TYPE_LENGTH (SYMBOL_TYPE (sym)), d);
SYMBOL_VALUE_BYTES (sym) = dbl_valu;
SYMBOL_CLASS (sym) = LOC_CONST_BYTES;
}
#endif
add_symbol_to_list (sym, &local_symbols);
+#if TARGET_BYTE_ORDER == LITTLE_ENDIAN
+ /* On little-endian machines, this crud is never necessary, and,
+ if the extra bytes contain garbage, is harmful. */
+ break;
+#else /* Big endian. */
/* If it's gcc-compiled, if it says `short', believe it. */
if (processing_gcc_compilation || BELIEVE_PCC_PROMOTION)
break;
/* This macro is defined on machines (e.g. sparc) where
we should believe the type of a PCC 'short' argument,
but shouldn't believe the address (the address is
- the address of the corresponding int). Note that
- this is only different from the BELIEVE_PCC_PROMOTION
- case on big-endian machines.
+ the address of the corresponding int).
My guess is that this correction, as opposed to changing
the parameter to an 'int' (as done below, for PCC
the sparc problem doesn't come up because the calling
function has to zero the top bytes (not knowing whether
the called function wants an int or a short), so there
- is no practical difference between an int and a short
+ is little practical difference between an int and a short
(except perhaps what happens when the GDB user types
"print short_arg = 0x10000;").
#endif /* no BELIEVE_PCC_PROMOTION_TYPE. */
}
#endif /* !BELIEVE_PCC_PROMOTION. */
+#endif /* Big endian. */
case 'P':
/* acc seems to use P to delare the prototypes of functions that
name to represent an argument passed in a register.
GCC uses 'P' for the same case. So if we find such a symbol pair
we combine it into one 'P' symbol.
+
+ But we only do this in the REG_STRUCT_HAS_ADDR case, so that
+ we can still get information about what is going on with the
+ stack (VAX for computing args_printed, using stack slots instead
+ of saved registers in backtraces, etc.).
+
Note that this code illegally combines
- main(argc) int argc; { register int argc = 1; }
+ main(argc) struct foo argc; { register struct foo argc; }
but this case is considered pathological and causes a warning
from a decent compiler. */
+
if (local_symbols
- && local_symbols->nsyms > 0)
+ && local_symbols->nsyms > 0
+ && REG_STRUCT_HAS_ADDR (processing_gcc_compilation)
+ && (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT
+ || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_UNION))
{
struct symbol *prev_sym;
prev_sym = local_symbols->symbol[local_symbols->nsyms - 1];
&& STREQ (SYMBOL_NAME (prev_sym), SYMBOL_NAME(sym)))
{
SYMBOL_CLASS (prev_sym) = LOC_REGPARM;
+ /* Use the type from the LOC_REGISTER; that is the type
+ that is actually in that register. */
+ SYMBOL_TYPE (prev_sym) = SYMBOL_TYPE (sym);
SYMBOL_VALUE (prev_sym) = SYMBOL_VALUE (sym);
sym = prev_sym;
break;
break;
case 't':
-#if 0
- /* See comment where long_kludge_name is declared. */
- /* Here we save the name of the symbol for read_range_type, which
- ends up reading in the basic types. In stabs, unfortunately there
- is no distinction between "int" and "long" types except their
- names. Until we work out a saner type policy (eliminating most
- builtin types and using the names specified in the files), we
- save away the name so that far away from here in read_range_type,
- we can examine it to decide between "int" and "long". FIXME. */
- long_kludge_name = SYMBOL_NAME (sym);
-#endif
SYMBOL_TYPE (sym) = read_type (&p, objfile);
/* For a nameless type, we don't want a create a symbol, thus we
strlen (SYMBOL_NAME (sym)),
&objfile -> symbol_obstack);
}
+ /* The semantics of C++ state that "struct foo { ... }" also defines
+ a typedef for "foo". Unfortunately, cfront never makes the typedef
+ when translating C++ into C. We make the typedef here so that
+ "ptype foo" works as expected for cfront translated code. */
+ else if (current_subfile->language == language_cplus)
+ {
+ synonym = 1;
+ type_synonym_name = obsavestring (SYMBOL_NAME (sym),
+ strlen (SYMBOL_NAME (sym)),
+ &objfile -> symbol_obstack);
+ }
SYMBOL_TYPE (sym) = read_type (&p, objfile);
If REG_STRUCT_HAS_ADDR yields non-zero we have to convert LOC_REGPARM
to LOC_REGPARM_ADDR for structures and unions. */
-#if !defined (REG_STRUCT_HAS_ADDR)
-#define REG_STRUCT_HAS_ADDR(gcc_p) 0
-#endif
-
if (SYMBOL_CLASS (sym) == LOC_REGPARM
&& REG_STRUCT_HAS_ADDR (processing_gcc_compilation)
- && ( (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT)
+ && ((TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT)
|| (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_UNION)))
SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR;
}
/* Check for and handle cretinous dbx symbol name continuation! */
- if ((*pp)[-1] == '\\')
+ if ((*pp)[-1] == '\\' || (*pp)[-1] == '?')
{
*pp = next_symbol_text ();
}
int xtypenums[2];
char type_descriptor;
+ /* Size in bits of type if specified by a type attribute, or -1 if
+ there is no size attribute. */
+ int type_size = -1;
+
+ /* Used to distinguish string and bitstring from char-array and set. */
+ int is_string = 0;
+
/* Read type number if present. The type number may be omitted.
for instance in a two-dimensional array declared with type
"ar1;1;10;ar1;1;10;4". */
if ((**pp >= '0' && **pp <= '9')
- || **pp == '(')
+ || **pp == '('
+ || **pp == '-')
{
if (read_type_number (pp, typenums) != 0)
return error_type (pp);
break;
else
{
- /* Type attributes; skip to the semicolon. */
+ /* Type attributes. */
+ char *attr = p;
+
+ /* Skip to the semicolon. */
while (*p != ';' && *p != '\0')
++p;
*pp = p;
else
/* Skip the semicolon. */
++*pp;
+
+ switch (*attr)
+ {
+ case 's':
+ type_size = atoi (attr + 1);
+ if (type_size <= 0)
+ type_size = -1;
+ break;
+
+ case 'S':
+ is_string = 1;
+ break;
+
+ default:
+ /* Ignore unrecognized type attributes, so future compilers
+ can invent new ones. */
+ break;
+ }
}
}
/* Skip the type descriptor, we get it below with (*pp)[-1]. */
/* Name including "struct", etc. */
char *type_name;
- /* Name without "struct", etc. */
- char *type_name_only;
-
{
- char *prefix;
- char *from, *to;
+ char *from, *to, *p, *q1, *q2;
/* Set the type code according to the following letter. */
switch ((*pp)[0])
code = TYPE_CODE_ENUM;
break;
default:
- return error_type (pp);
+ {
+ /* Complain and keep going, so compilers can invent new
+ cross-reference types. */
+ static struct complaint msg =
+ {"Unrecognized cross-reference type `%c'", 0, 0};
+ complain (&msg, (*pp)[0]);
+ code = TYPE_CODE_STRUCT;
+ break;
+ }
}
-
- to = type_name = (char *)
- obstack_alloc (&objfile -> type_obstack,
- (((char *) strchr (*pp, ':') - (*pp)) + 1));
+
+ q1 = strchr(*pp, '<');
+ p = strchr(*pp, ':');
+ if (p == NULL)
+ return error_type (pp);
+ while (q1 && p > q1 && p[1] == ':')
+ {
+ q2 = strchr(q1, '>');
+ if (!q2 || q2 < p)
+ break;
+ p += 2;
+ p = strchr(p, ':');
+ if (p == NULL)
+ return error_type (pp);
+ }
+ to = type_name =
+ (char *)obstack_alloc (&objfile->type_obstack, p - *pp + 1);
/* Copy the name. */
from = *pp + 1;
- while ((*to++ = *from++) != ':')
- ;
- *--to = '\0';
+ while (from < p)
+ *to++ = *from++;
+ *to = '\0';
- /* Set the pointer ahead of the name which we just read. */
- *pp = from;
+ /* Set the pointer ahead of the name which we just read, and
+ the colon. */
+ *pp = from + 1;
}
- /* Now check to see whether the type has already been declared. */
- /* This is necessary at least in the case where the
- program says something like
- struct foo bar[5];
- The compiler puts out a cross-reference; we better find
- set the length of the structure correctly so we can
- set the length of the array. */
+ /* Now check to see whether the type has already been
+ declared. This was written for arrays of cross-referenced
+ types before we had TYPE_CODE_TARGET_STUBBED, so I'm pretty
+ sure it is not necessary anymore. But it might be a good
+ idea, to save a little memory. */
+
for (ppt = file_symbols; ppt; ppt = ppt->next)
for (i = 0; i < ppt->nsyms; i++)
{
return type;
}
}
-
+
/* Didn't find the type to which this refers, so we must
be dealing with a forward reference. Allocate a type
structure for it, and keep track of it so we can
case '9':
case '(':
- /* The type is being defined to another type. When we support
- Ada (and arguably for C, so "whatis foo" can give "size_t",
- "wchar_t", or whatever it was declared as) we'll need to
- allocate a distinct type here rather than returning the
- existing one. GCC is currently (deliberately) incapable of
- putting out the debugging information to do that, however. */
+ {
+ char *pp_saved;
- (*pp)--;
- if (read_type_number (pp, xtypenums) != 0)
- return error_type (pp);
- if (typenums[0] == xtypenums[0] && typenums[1] == xtypenums[1])
- /* It's being defined as itself. That means it is "void". */
- type = init_type (TYPE_CODE_VOID, 0, 0, NULL, objfile);
- else
- type = *dbx_lookup_type (xtypenums);
- if (typenums[0] != -1)
- *dbx_lookup_type (typenums) = type;
- /* This can happen if we had '-' followed by a garbage character,
- for example. */
- if (type == NULL)
- return error_type (pp);
- break;
+ (*pp)--;
+ pp_saved = *pp;
+
+ /* Peek ahead at the number to detect void. */
+ if (read_type_number (pp, xtypenums) != 0)
+ return error_type (pp);
+
+ if (typenums[0] == xtypenums[0] && typenums[1] == xtypenums[1])
+ /* It's being defined as itself. That means it is "void". */
+ type = init_type (TYPE_CODE_VOID, 0, 0, NULL, objfile);
+ else
+ {
+ struct type *xtype;
+
+ /* Go back to the number and have read_type get it. This means
+ that we can deal with something like t(1,2)=(3,4)=... which
+ the Lucid compiler uses. */
+ *pp = pp_saved;
+ xtype = read_type (pp, objfile);
+
+ /* The type is being defined to another type. So we copy the type.
+ This loses if we copy a C++ class and so we lose track of how
+ the names are mangled (but g++ doesn't output stabs like this
+ now anyway). */
+
+ type = alloc_type (objfile);
+ memcpy (type, xtype, sizeof (struct type));
+
+ /* The idea behind clearing the names is that the only purpose
+ for defining a type to another type is so that the name of
+ one can be different. So we probably don't need to worry much
+ about the case where the compiler doesn't give a name to the
+ new type. */
+ TYPE_NAME (type) = NULL;
+ TYPE_TAG_NAME (type) = NULL;
+ }
+ if (typenums[0] != -1)
+ *dbx_lookup_type (typenums) = type;
+ break;
+ }
/* In the following types, we must be sure to overwrite any existing
type that the typenums refer to, rather than allocating a new one
type = dbx_alloc_type (typenums, objfile);
type = read_array_type (pp, type, objfile);
+ if (is_string)
+ TYPE_CODE (type) = TYPE_CODE_STRING;
+ break;
+
+ case 'S':
+ type1 = read_type (pp, objfile);
+ type = create_set_type ((struct type*) NULL, type1);
+ if (is_string)
+ TYPE_CODE (type) = TYPE_CODE_BITSTRING;
+ if (typenums[0] != -1)
+ *dbx_lookup_type (typenums) = type;
break;
default:
return error_type (pp);
}
+ /* Size specified in a type attribute overrides any other size. */
+ if (type_size != -1)
+ TYPE_LENGTH (type) = type_size / TARGET_CHAR_BIT;
+
return type;
}
\f
#define NUMBER_RECOGNIZED 30
/* This includes an empty slot for type number -0. */
static struct type *negative_types[NUMBER_RECOGNIZED + 1];
- struct type *rettype;
+ struct type *rettype = NULL;
if (typenum >= 0 || typenum < -NUMBER_RECOGNIZED)
{
"character", NULL);
break;
case 21:
- rettype = init_type (TYPE_CODE_INT, 1, TYPE_FLAG_UNSIGNED,
+ rettype = init_type (TYPE_CODE_BOOL, 1, TYPE_FLAG_UNSIGNED,
"logical*1", NULL);
break;
case 22:
- rettype = init_type (TYPE_CODE_INT, 2, TYPE_FLAG_UNSIGNED,
+ rettype = init_type (TYPE_CODE_BOOL, 2, TYPE_FLAG_UNSIGNED,
"logical*2", NULL);
break;
case 23:
- rettype = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED,
+ rettype = init_type (TYPE_CODE_BOOL, 4, TYPE_FLAG_UNSIGNED,
"logical*4", NULL);
break;
case 24:
#define VISIBILITY_PRIVATE '0' /* Stabs character for private field */
#define VISIBILITY_PROTECTED '1' /* Stabs character for protected fld */
#define VISIBILITY_PUBLIC '2' /* Stabs character for public field */
+#define VISIBILITY_IGNORE '9' /* Optimized out or zero length */
/* Read member function stabs info for C++ classes. The form of each member
function data is:
struct objfile *objfile;
{
register char *p;
- const char *prefix;
char *name;
char cpp_abbrev;
struct type *context;
fip -> list -> field.name =
obsavestring (*pp, p - *pp, &objfile -> type_obstack);
*pp = p + 1;
-
+
/* This means we have a visibility for a field coming. */
if (**pp == '/')
{
(*pp)++;
fip -> list -> visibility = *(*pp)++;
- switch (fip -> list -> visibility)
- {
- case VISIBILITY_PRIVATE:
- case VISIBILITY_PROTECTED:
- break;
-
- case VISIBILITY_PUBLIC:
- /* Nothing to do */
- break;
-
- default:
- /* Unknown visibility specifier. */
- complain (&stabs_general_complaint,
- "unknown visibility specifier");
- return;
- break;
- }
}
else
{
/* normal dbx-style format, no explicit visibility */
fip -> list -> visibility = VISIBILITY_PUBLIC;
}
-
+
fip -> list -> field.type = read_type (pp, objfile);
if (**pp == ':')
{
return;
}
}
-#if 0
- /* FIXME-tiemann: Can't the compiler put out something which
- lets us distinguish these? (or maybe just not put out anything
- for the field). What is the story here? What does the compiler
- really do? Also, patch gdb.texinfo for this case; I document
- it as a possible problem there. Search for "DBX-style". */
-
- /* This is wrong because this is identical to the symbols
- produced for GCC 0-size arrays. For example:
- typedef union {
- int num;
- char str[0];
- } foo;
- The code which dumped core in such circumstances should be
- fixed not to dump core. */
-
- /* g++ -g0 can put out bitpos & bitsize zero for a static
- field. This does not give us any way of getting its
- class, so we can't know its name. But we can just
- ignore the field so we don't dump core and other nasty
- stuff. */
+
if (fip -> list -> field.bitpos == 0 && fip -> list -> field.bitsize == 0)
{
- complain (&dbx_class_complaint);
+ /* This can happen in two cases: (1) at least for gcc 2.4.5 or so,
+ it is a field which has been optimized out. The correct stab for
+ this case is to use VISIBILITY_IGNORE, but that is a recent
+ invention. (2) It is a 0-size array. For example
+ union { int num; char str[0]; } foo. Printing "<no value>" for
+ str in "p foo" is OK, since foo.str (and thus foo.str[3])
+ will continue to work, and a 0-size array as a whole doesn't
+ have any contents to print.
+
+ I suspect this probably could also happen with gcc -gstabs (not
+ -gstabs+) for static fields, and perhaps other C++ extensions.
+ Hopefully few people use -gstabs with gdb, since it is intended
+ for dbx compatibility. */
+
/* Ignore this field. */
- fip -> list = fip -> list -> next;
+ fip -> list-> visibility = VISIBILITY_IGNORE;
}
else
-#endif /* 0 */
{
/* Detect an unpacked field and mark it as such.
dbx gives a bit size for all fields.
Note that forward refs cannot be packed,
and treat enums as if they had the width of ints. */
-
+
if (TYPE_CODE (fip -> list -> field.type) != TYPE_CODE_INT
&& TYPE_CODE (fip -> list -> field.type) != TYPE_CODE_ENUM)
{
'/0' (VISIBILITY_PRIVATE)
'/1' (VISIBILITY_PROTECTED)
'/2' (VISIBILITY_PUBLIC)
+ '/9' (VISIBILITY_IGNORE)
or nothing, for C style fields with public visibility.
Returns 1 for success, 0 for failure. */
-
+
static int
read_struct_fields (fip, pp, type, objfile)
struct field_info *fip;
/* Get the field name. */
p = *pp;
- /* If is starts with CPLUS_MARKER it is a special abbreviation, unless
- the CPLUS_MARKER is followed by an underscore, in which case it is
- just the name of an anonymous type, which we should handle like any
- other type name. */
- if (*p == CPLUS_MARKER && p[1] != '_')
+
+ /* If is starts with CPLUS_MARKER it is a special abbreviation,
+ unless the CPLUS_MARKER is followed by an underscore, in
+ which case it is just the name of an anonymous type, which we
+ should handle like any other type name. We accept either '$'
+ or '.', because a field name can never contain one of these
+ characters except as a CPLUS_MARKER (we probably should be
+ doing that in most parts of GDB). */
+
+ if ((*p == '$' || *p == '.') && p[1] != '_')
{
if (!read_cpp_abbrev (fip, pp, type, objfile))
return 0;
}
read_one_struct_field (fip, pp, p, type, objfile);
}
- if (p[1] == ':')
+ if (p[0] == ':' && p[1] == ':')
{
/* chill the list of fields: the last entry (at the head) is a
partially constructed entry which we now scrub. */
new -> field.bitsize = 0; /* this should be an unpacked field! */
STABS_CONTINUE (pp);
- switch (*(*pp)++)
+ switch (**pp)
{
case '0':
/* Nothing to do. */
SET_TYPE_FIELD_VIRTUAL (type, i);
break;
default:
- /* Bad visibility format. */
- return 0;
+ /* Unknown character. Complain and treat it as non-virtual. */
+ {
+ static struct complaint msg = {
+ "Unknown virtual character `%c' for baseclass", 0, 0};
+ complain (&msg, **pp);
+ }
}
+ ++(*pp);
new -> visibility = *(*pp)++;
switch (new -> visibility)
case VISIBILITY_PUBLIC:
break;
default:
- /* Bad visibility format. */
- return 0;
+ /* Bad visibility format. Complain and treat it as
+ public. */
+ {
+ static struct complaint msg = {
+ "Unknown visibility `%c' for baseclass", 0, 0};
+ complain (&msg, new -> visibility);
+ new -> visibility = VISIBILITY_PUBLIC;
+ }
}
{
TYPE_FIELD_PROTECTED_BITS (type) =
(B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields);
+
+ TYPE_FIELD_IGNORE_BITS (type) =
+ (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
+ B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields);
}
/* Copy the saved-up fields into the field vector. Start from the head
SET_TYPE_FIELD_PROTECTED (type, nfields);
break;
+ case VISIBILITY_IGNORE:
+ SET_TYPE_FIELD_IGNORE (type, nfields);
+ break;
+
case VISIBILITY_PUBLIC:
break;
default:
- /* Should warn about this unknown visibility? */
+ /* Unknown visibility. Complain and treat it as public. */
+ {
+ static struct complaint msg = {
+ "Unknown visibility `%c' for field", 0, 0};
+ complain (&msg, fip -> list -> visibility);
+ }
break;
}
fip -> list = fip -> list -> next;
return error_type (pp);
++*pp;
- if (!(**pp >= '0' && **pp <= '9'))
+ if (!(**pp >= '0' && **pp <= '9') && **pp != '-')
{
(*pp)++;
adjustable = 1;
if (nbits != 0)
return error_type (pp);
- if (!(**pp >= '0' && **pp <= '9'))
+ if (!(**pp >= '0' && **pp <= '9') && **pp != '-')
{
(*pp)++;
adjustable = 1;
/* If we have an array whose element type is not yet known, but whose
bounds *are* known, record it to be adjusted at the end of the file. */
+ /* FIXME: Why check for zero length rather than TYPE_FLAG_STUB? I think
+ the two have the same effect except that the latter is cleaner and the
+ former would be wrong for types which really are zero-length (if we
+ have any). */
if (TYPE_LENGTH (element_type) == 0 && !adjustable)
{
+ TYPE_FLAGS (type) |= TYPE_FLAG_TARGET_STUB;
add_undefined_type (type);
}
/* Now fill in the fields of the type-structure. */
- TYPE_LENGTH (type) = sizeof (int);
+ TYPE_LENGTH (type) = TARGET_INT_BIT / HOST_CHAR_BIT;
TYPE_CODE (type) = TYPE_CODE_ENUM;
TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB;
TYPE_NFIELDS (type) = nsyms;
if (nbits != 0)
return error_type (pp);
-#if 0
- /* FIXME. Here we should just be able to make a type of the right
- number of bits and signedness. FIXME. */
-
- if (type_bits == TARGET_LONG_LONG_BIT)
- return (lookup_fundamental_type (objfile,
- signed_type? FT_LONG_LONG: FT_UNSIGNED_LONG_LONG));
-
- if (type_bits == TARGET_INT_BIT)
- {
- /* FIXME -- the only way to distinguish `int' from `long'
- is to look at its name! */
- if (signed_type)
- {
- if (long_kludge_name && long_kludge_name[0] == 'l' /* long */)
- return lookup_fundamental_type (objfile, FT_LONG);
- else
- return lookup_fundamental_type (objfile, FT_INTEGER);
- }
- else
- {
- if (long_kludge_name
- && ((long_kludge_name[0] == 'u' /* unsigned */ &&
- long_kludge_name[9] == 'l' /* long */)
- || (long_kludge_name[0] == 'l' /* long unsigned */)))
- return lookup_fundamental_type (objfile, FT_UNSIGNED_LONG);
- else
- return lookup_fundamental_type (objfile, FT_UNSIGNED_INTEGER);
- }
- }
-
- if (type_bits == TARGET_SHORT_BIT)
- return (lookup_fundamental_type (objfile,
- signed_type? FT_SHORT: FT_UNSIGNED_SHORT));
-
- if (type_bits == TARGET_CHAR_BIT)
- return (lookup_fundamental_type (objfile,
- signed_type? FT_CHAR: FT_UNSIGNED_CHAR));
-
- if (type_bits == 0)
- return lookup_fundamental_type (objfile, FT_VOID);
-
- return error_type (pp);
-#else
return init_type (type_bits == 0 ? TYPE_CODE_VOID : TYPE_CODE_INT,
type_bits / TARGET_CHAR_BIT,
signed_type ? 0 : TYPE_FLAG_UNSIGNED, (char *)NULL,
objfile);
-#endif
}
static struct type *
{
if (bits != NULL)
*bits = -1;
- return;
+ return 0;
}
}
else
count how many bits are in them). */
if (bits != NULL)
*bits = -1;
- return;
+ return 0;
}
/* -0x7f is the same as 0x80. So deal with it by adding one to
char got_signed = 0;
char got_unsigned = 0;
/* Number of bits in the type. */
- int nbits;
+ int nbits = 0;
/* Range from 0 to <large number> is an unsigned large integral type. */
if ((n2bits == 0 && n2 == 0) && n3bits != 0)
nbits = n3bits;
}
/* Range from <large number> to <large number>-1 is a large signed
- integral type. */
- else if (n2bits != 0 && n3bits != 0 && n2bits == n3bits + 1)
+ integral type. Take care of the case where <large number> doesn't
+ fit in a long but <large number>-1 does. */
+ else if ((n2bits != 0 && n3bits != 0 && n2bits == n3bits + 1)
+ || (n2bits != 0 && n3bits == 0
+ && (n2bits == sizeof (long) * HOST_CHAR_BIT)
+ && n3 == LONG_MAX))
{
got_signed = 1;
nbits = n2bits;
GDB does not have complex types.
Just return the complex as a float of that size. It won't work right
- for the complex values, but at least it makes the file loadable.
-
- FIXME, we may be able to distinguish these by their names. FIXME. */
+ for the complex values, but at least it makes the file loadable. */
if (n3 == 0 && n2 > 0)
{
else if (n2 == 0 && n3 == -1)
{
/* It is unsigned int or unsigned long. */
- /* GCC sometimes uses this for long long too. We could
- distinguish it by the name, but we don't. */
+ /* GCC 2.3.3 uses this for long long too, but that is just a GDB 3.5
+ compatibility hack. */
return init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, NULL, objfile);
}
memcpy (rval, types, n * sizeof (struct type *));
return rval;
}
+\f
+/* Common block handling. */
+
+/* List of symbols declared since the last BCOMM. This list is a tail
+ of local_symbols. When ECOMM is seen, the symbols on the list
+ are noted so their proper addresses can be filled in later,
+ using the common block base address gotten from the assembler
+ stabs. */
+
+static struct pending *common_block;
+static int common_block_i;
+
+/* Name of the current common block. We get it from the BCOMM instead of the
+ ECOMM to match IBM documentation (even though IBM puts the name both places
+ like everyone else). */
+static char *common_block_name;
+
+/* Process a N_BCOMM symbol. The storage for NAME is not guaranteed
+ to remain after this function returns. */
+
+void
+common_block_start (name, objfile)
+ char *name;
+ struct objfile *objfile;
+{
+ if (common_block_name != NULL)
+ {
+ static struct complaint msg = {
+ "Invalid symbol data: common block within common block",
+ 0, 0};
+ complain (&msg);
+ }
+ common_block = local_symbols;
+ common_block_i = local_symbols ? local_symbols->nsyms : 0;
+ common_block_name = obsavestring (name, strlen (name),
+ &objfile -> symbol_obstack);
+}
+
+/* Process a N_ECOMM symbol. */
+
+void
+common_block_end (objfile)
+ struct objfile *objfile;
+{
+ /* Symbols declared since the BCOMM are to have the common block
+ start address added in when we know it. common_block and
+ common_block_i point to the first symbol after the BCOMM in
+ the local_symbols list; copy the list and hang it off the
+ symbol for the common block name for later fixup. */
+ int i;
+ struct symbol *sym;
+ struct pending *new = 0;
+ struct pending *next;
+ int j;
+
+ if (common_block_name == NULL)
+ {
+ static struct complaint msg = {"ECOMM symbol unmatched by BCOMM", 0, 0};
+ complain (&msg);
+ return;
+ }
+
+ sym = (struct symbol *)
+ obstack_alloc (&objfile -> symbol_obstack, sizeof (struct symbol));
+ memset (sym, 0, sizeof (struct symbol));
+ SYMBOL_NAME (sym) = common_block_name;
+ SYMBOL_CLASS (sym) = LOC_BLOCK;
+
+ /* Now we copy all the symbols which have been defined since the BCOMM. */
+
+ /* Copy all the struct pendings before common_block. */
+ for (next = local_symbols;
+ next != NULL && next != common_block;
+ next = next->next)
+ {
+ for (j = 0; j < next->nsyms; j++)
+ add_symbol_to_list (next->symbol[j], &new);
+ }
+
+ /* Copy however much of COMMON_BLOCK we need. If COMMON_BLOCK is
+ NULL, it means copy all the local symbols (which we already did
+ above). */
+
+ if (common_block != NULL)
+ for (j = common_block_i; j < common_block->nsyms; j++)
+ add_symbol_to_list (common_block->symbol[j], &new);
+
+ SYMBOL_NAMESPACE (sym) = (enum namespace)((long) new);
+
+ /* Should we be putting local_symbols back to what it was?
+ Does it matter? */
+
+ i = hashname (SYMBOL_NAME (sym));
+ SYMBOL_VALUE_CHAIN (sym) = global_sym_chain[i];
+ global_sym_chain[i] = sym;
+ common_block_name = NULL;
+}
/* Add a common block's start address to the offset of each symbol
declared to be in it (by being between a BCOMM/ECOMM pair that uses
case TYPE_CODE_UNION:
case TYPE_CODE_ENUM:
{
- /* Check if it has been defined since. */
+ /* Check if it has been defined since. Need to do this here
+ as well as in check_stub_type to deal with the (legitimate in
+ C though not C++) case of several types with the same name
+ in different source files. */
if (TYPE_FLAGS (*type) & TYPE_FLAG_STUB)
{
struct pending *ppt;
}
break;
- case TYPE_CODE_ARRAY:
+ case TYPE_CODE_ARRAY:
{
+ /* This is a kludge which is here for historical reasons
+ because I suspect that check_stub_type does not get
+ called everywhere it needs to be called for arrays. Even
+ with this kludge, those places are broken for the case
+ where the stub type is defined in another compilation
+ unit, but this kludge at least deals with it for the case
+ in which it is the same compilation unit.
+
+ Don't try to do this by calling check_stub_type; it might
+ cause symbols to be read in lookup_symbol, and the symbol
+ reader is not reentrant. */
+
struct type *range_type;
int lower, upper;
upper = TYPE_FIELD_BITPOS (range_type, 1);
TYPE_LENGTH (*type) = (upper - lower + 1)
* TYPE_LENGTH (TYPE_TARGET_TYPE (*type));
+
+ /* If the target type is not a stub, we could be clearing
+ TYPE_FLAG_TARGET_STUB for *type. */
}
break;
break;
}
}
+
undef_types_length = 0;
}
n_this_object_header_files = 1;
type_vector_length = 0;
type_vector = (struct type **) 0;
+
+ /* FIXME: If common_block_name is not already NULL, we should complain(). */
+ common_block_name = NULL;
}
/* Call after end_symtab() */
projects / deliverable / binutils-gdb.git / blobdiff