/* Support routines for manipulating internal types for GDB.
- Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
This file is part of GDB.
struct type *builtin_type_complex;
struct type *builtin_type_double_complex;
struct type *builtin_type_string;
+struct type *builtin_type_int8;
+struct type *builtin_type_uint8;
+struct type *builtin_type_int16;
+struct type *builtin_type_uint16;
+struct type *builtin_type_int32;
+struct type *builtin_type_uint32;
+struct type *builtin_type_int64;
+struct type *builtin_type_uint64;
+/* start-sanitize-r5900 */
+struct type *builtin_type_int128;
+struct type *builtin_type_uint128;
+/* end-sanitize-r5900 */
+
+struct extra { char str[128]; int len; }; /* maximum extention is 128! FIXME */
+
+static void add_name PARAMS ((struct extra *, char *));
+static void add_mangled_type PARAMS ((struct extra *, struct type *));
+#if 0
+static void cfront_mangle_name PARAMS ((struct type *, int, int));
+#endif
+static void print_bit_vector PARAMS ((B_TYPE *, int));
+static void print_arg_types PARAMS ((struct type **, int));
+static void dump_fn_fieldlists PARAMS ((struct type *, int));
+static void print_cplus_stuff PARAMS ((struct type *, int));
/* Alloc a new type structure and fill it with some defaults. If
OBJFILE is non-NULL, then allocate the space for the type structure
{
type = (struct type *) obstack_alloc (&objfile -> type_obstack,
sizeof (struct type));
+ OBJSTAT (objfile, n_types++);
}
memset ((char *) type, 0, sizeof (struct type));
if (TYPE_FLAGS (index_type) & TYPE_FLAG_STUB)
TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB;
else
- TYPE_LENGTH (result_type) = TYPE_LENGTH (index_type);
+ TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type));
TYPE_NFIELDS (result_type) = 2;
TYPE_FIELDS (result_type) = (struct field *)
TYPE_ALLOC (result_type, 2 * sizeof (struct field));
TYPE_FIELD_TYPE (result_type, 0) = builtin_type_int; /* FIXME */
TYPE_FIELD_TYPE (result_type, 1) = builtin_type_int; /* FIXME */
+ if(low_bound >= 0)
+ TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED;
+
return (result_type);
}
-/* A lot of code assumes that the "index type" of an array/string/
- set/bitstring is specifically a range type, though in some languages
- it can be any discrete type. */
+/* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type TYPE.
+ Return 1 of type is a range type, 0 if it is discrete (and bounds
+ will fit in LONGEST), or -1 otherwise. */
-struct type *
-force_to_range_type (type)
+int
+get_discrete_bounds (type, lowp, highp)
struct type *type;
+ LONGEST *lowp, *highp;
{
+ CHECK_TYPEDEF (type);
switch (TYPE_CODE (type))
{
case TYPE_CODE_RANGE:
- return type;
-
+ *lowp = TYPE_LOW_BOUND (type);
+ *highp = TYPE_HIGH_BOUND (type);
+ return 1;
case TYPE_CODE_ENUM:
- {
- int low_bound = TYPE_FIELD_BITPOS (type, 0);
- int high_bound = TYPE_FIELD_BITPOS (type, TYPE_NFIELDS (type) - 1);
- struct type *range_type =
- create_range_type (NULL, type, low_bound, high_bound);
- TYPE_NAME (range_type) = TYPE_NAME (range_type);
- TYPE_DUMMY_RANGE (range_type) = 1;
- return range_type;
- }
+ if (TYPE_NFIELDS (type) > 0)
+ {
+ /* The enums may not be sorted by value, so search all
+ entries */
+ int i;
+
+ *lowp = *highp = TYPE_FIELD_BITPOS (type, 0);
+ for (i = 0; i < TYPE_NFIELDS (type); i++)
+ {
+ if (TYPE_FIELD_BITPOS (type, i) < *lowp)
+ *lowp = TYPE_FIELD_BITPOS (type, i);
+ if (TYPE_FIELD_BITPOS (type, i) > *highp)
+ *highp = TYPE_FIELD_BITPOS (type, i);
+ }
+ }
+ else
+ {
+ *lowp = 0;
+ *highp = -1;
+ }
+ return 0;
case TYPE_CODE_BOOL:
- {
- struct type *range_type = create_range_type (NULL, type, 0, 1);
- TYPE_NAME (range_type) = TYPE_NAME (range_type);
- TYPE_DUMMY_RANGE (range_type) = 1;
- return range_type;
- }
+ *lowp = 0;
+ *highp = 1;
+ return 0;
+ case TYPE_CODE_INT:
+ if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */
+ return -1;
+ if (!TYPE_UNSIGNED (type))
+ {
+ *lowp = - (1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1));
+ *highp = -*lowp - 1;
+ return 0;
+ }
+ /* ... fall through for unsigned ints ... */
case TYPE_CODE_CHAR:
- {
- struct type *range_type = create_range_type (NULL, type, 0, 255);
- TYPE_NAME (range_type) = TYPE_NAME (range_type);
- TYPE_DUMMY_RANGE (range_type) = 1;
- return range_type;
- }
+ *lowp = 0;
+ /* This round-about calculation is to avoid shifting by
+ TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work
+ if TYPE_LENGTH (type) == sizeof (LONGEST). */
+ *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1);
+ *highp = (*highp - 1) | *highp;
+ return 0;
default:
- {
- static struct complaint msg =
- { "array index type must be a discrete type", 0, 0};
- complain (&msg);
-
- return create_range_type (NULL, builtin_type_int, 0, 0);
- }
+ return -1;
}
}
struct type *element_type;
struct type *range_type;
{
- int low_bound;
- int high_bound;
+ LONGEST low_bound, high_bound;
- range_type = force_to_range_type (range_type);
if (result_type == NULL)
{
result_type = alloc_type (TYPE_OBJFILE (range_type));
}
TYPE_CODE (result_type) = TYPE_CODE_ARRAY;
TYPE_TARGET_TYPE (result_type) = element_type;
- low_bound = TYPE_LOW_BOUND (range_type);
- high_bound = TYPE_HIGH_BOUND (range_type);
+ if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0)
+ low_bound = high_bound = 0;
+ CHECK_TYPEDEF (element_type);
TYPE_LENGTH (result_type) =
TYPE_LENGTH (element_type) * (high_bound - low_bound + 1);
TYPE_NFIELDS (result_type) = 1;
TYPE_FIELD_TYPE (result_type, 0) = range_type;
TYPE_VPTR_FIELDNO (result_type) = -1;
+ /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */
+ if (TYPE_LENGTH (result_type) == 0)
+ TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB;
+
return (result_type);
}
struct type *result_type;
struct type *domain_type;
{
- int low_bound, high_bound, bit_length;
+ LONGEST low_bound, high_bound, bit_length;
if (result_type == NULL)
{
result_type = alloc_type (TYPE_OBJFILE (domain_type));
if (! (TYPE_FLAGS (domain_type) & TYPE_FLAG_STUB))
{
- domain_type = force_to_range_type (domain_type);
- low_bound = TYPE_LOW_BOUND (domain_type);
- high_bound = TYPE_HIGH_BOUND (domain_type);
+ if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0)
+ low_bound = high_bound = 0;
bit_length = high_bound - low_bound + 1;
TYPE_LENGTH (result_type)
- = ((bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT)
- * TARGET_CHAR_BIT;
+ = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT;
}
TYPE_FIELD_TYPE (result_type, 0) = domain_type;
return (result_type);
{
int i;
- while (TYPE_CODE (type) == TYPE_CODE_PTR ||
- TYPE_CODE (type) == TYPE_CODE_REF)
+ for (;;)
+ {
+ CHECK_TYPEDEF (type);
+ if (TYPE_CODE (type) != TYPE_CODE_PTR
+ && TYPE_CODE (type) != TYPE_CODE_REF)
+ break;
type = TYPE_TARGET_TYPE (type);
+ }
if (TYPE_CODE (type) != TYPE_CODE_STRUCT &&
TYPE_CODE (type) != TYPE_CODE_UNION)
error (" is not a structure or union type.");
}
- check_stub_type (type);
-
#if 0
/* FIXME: This change put in by Michael seems incorrect for the case where
the structure tag name is the same as the member name. I.E. when doing
fill_in_vptr_fieldno (type)
struct type *type;
{
- check_stub_type (type);
+ CHECK_TYPEDEF (type);
if (TYPE_VPTR_FIELDNO (type) < 0)
{
}
}
+/* Find the method and field indices for the destructor in class type T.
+ Return 1 if the destructor was found, otherwise, return 0. */
+
+int
+get_destructor_fn_field (t, method_indexp, field_indexp)
+ struct type *t;
+ int *method_indexp;
+ int *field_indexp;
+{
+ int i;
+
+ for (i = 0; i < TYPE_NFN_FIELDS (t); i++)
+ {
+ int j;
+ struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i);
+
+ for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (t, i); j++)
+ {
+ if (DESTRUCTOR_PREFIX_P (TYPE_FN_FIELD_PHYSNAME (f, j)))
+ {
+ *method_indexp = i;
+ *field_indexp = j;
+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+
/* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989.
If this is a stubbed struct (i.e. declared as struct foo *), see if
struct complaint stub_noname_complaint =
{"stub type has NULL name", 0, 0};
-void
-check_stub_type (type)
- struct type *type;
+struct type *
+check_typedef (type)
+ register struct type *type;
{
- if (TYPE_FLAGS(type) & TYPE_FLAG_STUB)
+ struct type *orig_type = type;
+ while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF)
+ {
+ if (!TYPE_TARGET_TYPE (type))
+ {
+ char* name;
+ struct symbol *sym;
+
+ /* It is dangerous to call lookup_symbol if we are currently
+ reading a symtab. Infinite recursion is one danger. */
+ if (currently_reading_symtab)
+ return type;
+
+ name = type_name_no_tag (type);
+ /* FIXME: shouldn't we separately check the TYPE_NAME and the
+ TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE
+ as appropriate? (this code was written before TYPE_NAME and
+ TYPE_TAG_NAME were separate). */
+ if (name == NULL)
+ {
+ complain (&stub_noname_complaint);
+ return type;
+ }
+ sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0,
+ (struct symtab **) NULL);
+ if (sym)
+ TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym);
+ else
+ TYPE_TARGET_TYPE (type) = alloc_type (NULL); /* TYPE_CODE_UNDEF */
+ }
+ type = TYPE_TARGET_TYPE (type);
+ }
+
+ if ((TYPE_FLAGS(type) & TYPE_FLAG_STUB) && ! currently_reading_symtab)
{
char* name = type_name_no_tag (type);
/* FIXME: shouldn't we separately check the TYPE_NAME and the
if (name == NULL)
{
complain (&stub_noname_complaint);
- return;
+ return type;
}
sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0,
(struct symtab **) NULL);
if (TYPE_FLAGS (type) & TYPE_FLAG_TARGET_STUB)
{
struct type *range_type;
+ struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type));
- check_stub_type (TYPE_TARGET_TYPE (type));
- if (TYPE_FLAGS (TYPE_TARGET_TYPE (type)) & TYPE_FLAG_STUB)
+ if (TYPE_FLAGS (target_type) & (TYPE_FLAG_STUB | TYPE_FLAG_TARGET_STUB))
{ }
else if (TYPE_CODE (type) == TYPE_CODE_ARRAY
&& TYPE_NFIELDS (type) == 1
((TYPE_FIELD_BITPOS (range_type, 1)
- TYPE_FIELD_BITPOS (range_type, 0)
+ 1)
- * TYPE_LENGTH (TYPE_TARGET_TYPE (type)));
+ * TYPE_LENGTH (target_type));
TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB;
}
else if (TYPE_CODE (type) == TYPE_CODE_RANGE)
{
- TYPE_LENGTH (type) = TYPE_LENGTH (TYPE_TARGET_TYPE (type));
+ TYPE_LENGTH (type) = TYPE_LENGTH (target_type);
TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB;
}
}
+ /* Cache TYPE_LENGTH for future use. */
+ TYPE_LENGTH (orig_type) = TYPE_LENGTH (type);
+ return type;
+}
+
+/* New code added to support parsing of Cfront stabs strings */
+#include <ctype.h>
+#define INIT_EXTRA { pextras->len=0; pextras->str[0]='\0'; }
+#define ADD_EXTRA(c) { pextras->str[pextras->len++]=c; }
+
+static void
+add_name(pextras,n)
+ struct extra * pextras;
+ char * n;
+{
+ int nlen;
+
+ if ((nlen = (n ? strlen(n) : 0))==0)
+ return;
+ sprintf(pextras->str+pextras->len,"%d%s",nlen,n);
+ pextras->len=strlen(pextras->str);
}
+static void
+add_mangled_type(pextras,t)
+ struct extra * pextras;
+ struct type * t;
+{
+ enum type_code tcode;
+ int tlen, tflags;
+ char * tname;
+
+ tcode = TYPE_CODE(t);
+ tlen = TYPE_LENGTH(t);
+ tflags = TYPE_FLAGS(t);
+ tname = TYPE_NAME(t);
+ /* args of "..." seem to get mangled as "e" */
+
+ switch (tcode)
+ {
+ case TYPE_CODE_INT:
+ if (tflags==1)
+ ADD_EXTRA('U');
+ switch (tlen)
+ {
+ case 1:
+ ADD_EXTRA('c');
+ break;
+ case 2:
+ ADD_EXTRA('s');
+ break;
+ case 4:
+ {
+ char* pname;
+ if ((pname=strrchr(tname,'l'),pname) && !strcmp(pname,"long"))
+ ADD_EXTRA('l')
+ else
+ ADD_EXTRA('i')
+ }
+ break;
+ default:
+ {
+
+ static struct complaint msg = {"Bad int type code length x%x\n",0,0};
+
+ complain (&msg, tlen);
+
+ }
+ }
+ break;
+ case TYPE_CODE_FLT:
+ switch (tlen)
+ {
+ case 4:
+ ADD_EXTRA('f');
+ break;
+ case 8:
+ ADD_EXTRA('d');
+ break;
+ case 16:
+ ADD_EXTRA('r');
+ break;
+ default:
+ {
+ static struct complaint msg = {"Bad float type code length x%x\n",0,0};
+ complain (&msg, tlen);
+ }
+ }
+ break;
+ case TYPE_CODE_REF:
+ ADD_EXTRA('R');
+ /* followed by what it's a ref to */
+ break;
+ case TYPE_CODE_PTR:
+ ADD_EXTRA('P');
+ /* followed by what it's a ptr to */
+ break;
+ case TYPE_CODE_TYPEDEF:
+ {
+ static struct complaint msg = {"Typedefs in overloaded functions not yet supported\n",0,0};
+ complain (&msg);
+ }
+ /* followed by type bytes & name */
+ break;
+ case TYPE_CODE_FUNC:
+ ADD_EXTRA('F');
+ /* followed by func's arg '_' & ret types */
+ break;
+ case TYPE_CODE_VOID:
+ ADD_EXTRA('v');
+ break;
+ case TYPE_CODE_METHOD:
+ ADD_EXTRA('M');
+ /* followed by name of class and func's arg '_' & ret types */
+ add_name(pextras,tname);
+ ADD_EXTRA('F'); /* then mangle function */
+ break;
+ case TYPE_CODE_STRUCT: /* C struct */
+ case TYPE_CODE_UNION: /* C union */
+ case TYPE_CODE_ENUM: /* Enumeration type */
+ /* followed by name of type */
+ add_name(pextras,tname);
+ break;
+
+ /* errors possible types/not supported */
+ case TYPE_CODE_CHAR:
+ case TYPE_CODE_ARRAY: /* Array type */
+ case TYPE_CODE_MEMBER: /* Member type */
+ case TYPE_CODE_BOOL:
+ case TYPE_CODE_COMPLEX: /* Complex float */
+ case TYPE_CODE_UNDEF:
+ case TYPE_CODE_SET: /* Pascal sets */
+ case TYPE_CODE_RANGE:
+ case TYPE_CODE_STRING:
+ case TYPE_CODE_BITSTRING:
+ case TYPE_CODE_ERROR:
+ default:
+ {
+ static struct complaint msg = {"Unknown type code x%x\n",0,0};
+ complain (&msg, tcode);
+ }
+ }
+ if (t->target_type)
+ add_mangled_type(pextras,t->target_type);
+}
+
+#if 0
+void
+cfront_mangle_name(type, i, j)
+ struct type *type;
+ int i;
+ int j;
+{
+ struct fn_field *f;
+ char *mangled_name = gdb_mangle_name (type, i, j);
+
+ f = TYPE_FN_FIELDLIST1 (type, i); /* moved from below */
+
+ /* kludge to support cfront methods - gdb expects to find "F" for
+ ARM_mangled names, so when we mangle, we have to add it here */
+ if (ARM_DEMANGLING)
+ {
+ int k;
+ char * arm_mangled_name;
+ struct fn_field *method = &f[j];
+ char *field_name = TYPE_FN_FIELDLIST_NAME (type, i);
+ char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
+ char *newname = type_name_no_tag (type);
+
+ struct type *ftype = TYPE_FN_FIELD_TYPE (f, j);
+ int nargs = TYPE_NFIELDS(ftype); /* number of args */
+ struct extra extras, * pextras = &extras;
+ INIT_EXTRA
+
+ if (TYPE_FN_FIELD_STATIC_P (f, j)) /* j for sublist within this list */
+ ADD_EXTRA('S')
+ ADD_EXTRA('F')
+ /* add args here! */
+ if (nargs <= 1) /* no args besides this */
+ ADD_EXTRA('v')
+ else {
+ for (k=1; k<nargs; k++)
+ {
+ struct type * t;
+ t = TYPE_FIELD_TYPE(ftype,k);
+ add_mangled_type(pextras,t);
+ }
+ }
+ ADD_EXTRA('\0')
+ printf("add_mangled_type: %s\n",extras.str); /* FIXME */
+ arm_mangled_name = malloc(strlen(mangled_name)+extras.len);
+ sprintf(arm_mangled_name,"%s%s",mangled_name,extras.str);
+ free(mangled_name);
+ mangled_name = arm_mangled_name;
+ }
+}
+#endif /* 0 */
+
+#undef ADD_EXTRA
+/* End of new code added to support parsing of Cfront stabs strings */
+
/* Ugly hack to convert method stubs into method types.
He ain't kiddin'. This demangles the name of the method into a string
struct type **argtypes;
struct type *mtype;
- if (demangled_name == NULL)
- {
- error ("Internal: Cannot demangle mangled name `%s'.", mangled_name);
- }
+ /* Make sure we got back a function string that we can use. */
+ if (demangled_name)
+ p = strchr (demangled_name, '(');
+
+ if (demangled_name == NULL || p == NULL)
+ error ("Internal: Cannot demangle mangled name `%s'.", mangled_name);
/* Now, read in the parameters that define this type. */
- argtypetext = strchr (demangled_name, '(') + 1;
- p = argtypetext;
+ p += 1;
+ argtypetext = p;
while (*p)
{
if (*p == '(')
free (demangled_name);
- f = TYPE_FN_FIELDLIST1 (type, i);
+ f = TYPE_FN_FIELDLIST1 (type, i);
+
TYPE_FN_FIELD_PHYSNAME (f, j) = mangled_name;
/* Now update the old "stub" type into a real type. */
objfile -> fundamental_types = (struct type **)
obstack_alloc (&objfile -> type_obstack, nbytes);
memset ((char *) objfile -> fundamental_types, 0, nbytes);
+ OBJSTAT (objfile, n_types += FT_NUM_MEMBERS);
}
/* Look for this particular type in the fundamental type vector. If one is
struct type *t;
{
/* FIXME: Should we return true for references as well as pointers? */
+ CHECK_TYPEDEF (t);
return
(t != NULL
&& TYPE_CODE (t) == TYPE_CODE_PTR
case TYPE_CODE_BOOL:
printf_filtered ("(TYPE_CODE_BOOL)");
break;
+ case TYPE_CODE_TYPEDEF:
+ printf_filtered ("(TYPE_CODE_TYPEDEF)");
+ break;
default:
printf_filtered ("(UNKNOWN TYPE CODE)");
break;
init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
0,
"string", (struct objfile *) NULL);
+ builtin_type_int8 =
+ init_type (TYPE_CODE_INT, 8 / 8,
+ 0,
+ "int8_t", (struct objfile *) NULL);
+ builtin_type_uint8 =
+ init_type (TYPE_CODE_INT, 8 / 8,
+ TYPE_FLAG_UNSIGNED,
+ "uint8_t", (struct objfile *) NULL);
+ builtin_type_int16 =
+ init_type (TYPE_CODE_INT, 16 / 8,
+ 0,
+ "int16_t", (struct objfile *) NULL);
+ builtin_type_uint16 =
+ init_type (TYPE_CODE_INT, 16 / 8,
+ TYPE_FLAG_UNSIGNED,
+ "uint16_t", (struct objfile *) NULL);
+ builtin_type_int32 =
+ init_type (TYPE_CODE_INT, 32 / 8,
+ 0,
+ "int32_t", (struct objfile *) NULL);
+ builtin_type_uint32 =
+ init_type (TYPE_CODE_INT, 32 / 8,
+ TYPE_FLAG_UNSIGNED,
+ "uint32_t", (struct objfile *) NULL);
+ builtin_type_int64 =
+ init_type (TYPE_CODE_INT, 64 / 8,
+ 0,
+ "int64_t", (struct objfile *) NULL);
+ builtin_type_uint64 =
+ init_type (TYPE_CODE_INT, 64 / 8,
+ TYPE_FLAG_UNSIGNED,
+ "uint64_t", (struct objfile *) NULL);
+ /* start-sanitize-r5900 */
+ builtin_type_int128 =
+ init_type (TYPE_CODE_INT, 128 / 8,
+ 0,
+ "int128_t", (struct objfile *) NULL);
+ builtin_type_uint128 =
+ init_type (TYPE_CODE_INT, 128 / 8,
+ TYPE_FLAG_UNSIGNED,
+ "uint128_t", (struct objfile *) NULL);
+ /* end-sanitize-r5900 */
}