#include "annotate.h"
#include "gdb_string.h"
#include "c-lang.h"
+#include "target.h"
+
+/* Indication of presence of HP-compiled object files */
+extern int hp_som_som_object_present; /* defined in symtab.c */
+
int vtblprint; /* Controls printing of vtbl's */
int objectprint; /* Controls looking up an object's derived type
using what we find in its vtables. */
-static int static_field_print; /* Controls printing of static fields. */
+int static_field_print; /* Controls printing of static fields. */
static struct obstack dont_print_vb_obstack;
static struct obstack dont_print_statmem_obstack;
enum val_prettyprint));
static void
-cp_print_value PARAMS ((struct type *, char *, CORE_ADDR, GDB_FILE *,
+cp_print_value PARAMS ((struct type *, struct type *, char *, int, CORE_ADDR, GDB_FILE *,
int, int, enum val_prettyprint, struct type **));
+static void
+cp_print_hpacc_virtual_table_entries PARAMS ((struct type *, int *, value_ptr, GDB_FILE *,
+ int, int, enum val_prettyprint));
+
+
void
cp_print_class_method (valaddr, type, stream)
char *valaddr;
QUIT;
if (TYPE_FN_FIELD_VOFFSET (f, j) == offset)
{
+ if (TYPE_FN_FIELD_STUB (f, j))
+ check_stub_method (domain, i, j);
kind = "virtual ";
goto common;
}
sym = find_pc_function (addr);
if (sym == 0)
{
+ /* 1997-08-01 Currently unsupported with HP aCC */
+ if (hp_som_som_object_present)
+ {
+ fputs_filtered ("?? <not supported with HP aCC>", stream);
+ return;
+ }
error ("invalid pointer to member function");
}
len = TYPE_NFN_FIELDS (domain);
common:
if (i < len)
{
+ char *demangled_name;
+
fprintf_filtered (stream, "&");
- c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (f, j), stream, 0, 0);
- fprintf_unfiltered (stream, kind);
- if (TYPE_FN_FIELD_PHYSNAME (f, j)[0] == '_'
- && is_cplus_marker (TYPE_FN_FIELD_PHYSNAME (f, j)[1]))
- {
- cp_type_print_method_args (TYPE_FN_FIELD_ARGS (f, j) + 1, "~",
- TYPE_FN_FIELDLIST_NAME (domain, i),
- 0, stream);
- }
+ fprintf_filtered (stream, kind);
+ demangled_name = cplus_demangle (TYPE_FN_FIELD_PHYSNAME (f, j),
+ DMGL_ANSI | DMGL_PARAMS);
+ if (demangled_name == NULL)
+ fprintf_filtered (stream, "<badly mangled name %s>",
+ TYPE_FN_FIELD_PHYSNAME (f, j));
else
{
- cp_type_print_method_args (TYPE_FN_FIELD_ARGS (f, j), "",
- TYPE_FN_FIELDLIST_NAME (domain, i),
- 0, stream);
+ fputs_filtered (demangled_name, stream);
+ free (demangled_name);
}
}
else
const char vtbl_ptr_name[] =
{ '_','_','v','t','b','l','_','p','t','r','_','t','y','p','e', 0 };
+/* HP aCC uses different names */
+const char hpacc_vtbl_ptr_name[] =
+ { '_', '_', 'v', 'f', 'p', 0 };
+const char hpacc_vtbl_ptr_type_name[] =
+ { '_', '_', 'v', 'f', 't', 'y', 'p', 0 };
+
+
/* Return truth value for assertion that TYPE is of the type
"pointer to virtual function". */
TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and PRETTY have the
same meanings as in cp_print_value and c_val_print.
+ 2nd argument REAL_TYPE is used to carry over the type of the derived
+ class across the recursion to base classes.
+
DONT_PRINT is an array of baseclass types that we
should not print, or zero if called from top level. */
void
-cp_print_value_fields (type, valaddr, address, stream, format, recurse, pretty,
+cp_print_value_fields (type, real_type, valaddr, offset, address, stream, format, recurse, pretty,
dont_print_vb, dont_print_statmem)
struct type *type;
+ struct type *real_type;
char *valaddr;
+ int offset;
CORE_ADDR address;
GDB_FILE *stream;
int format;
int i, len, n_baseclasses;
struct obstack tmp_obstack;
char *last_dont_print = obstack_next_free (&dont_print_statmem_obstack);
+ int fields_seen = 0;
CHECK_TYPEDEF (type);
len = TYPE_NFIELDS (type);
n_baseclasses = TYPE_N_BASECLASSES (type);
- /* Print out baseclasses such that we don't print
+ /* First, print out baseclasses such that we don't print
duplicates of virtual baseclasses. */
+
if (n_baseclasses > 0)
- cp_print_value (type, valaddr, address, stream,
+ cp_print_value (type, real_type, valaddr, offset, address, stream,
format, recurse+1, pretty, dont_print_vb);
- if (!len && n_baseclasses == 1)
+ /* Second, print out data fields */
+
+ /* If there are no data fields, or if the only field is the
+ * vtbl pointer, skip this part */
+ if ((len == n_baseclasses) ||
+ ((len - n_baseclasses == 1) &&
+ TYPE_HAS_VTABLE(type) &&
+ STREQN(TYPE_FIELD_NAME (type, n_baseclasses), hpacc_vtbl_ptr_name, 5)) ||
+ !len)
fprintf_filtered (stream, "<No data fields>");
else
{
extern int inspect_it;
- int fields_seen = 0;
if (dont_print_statmem == 0)
{
/* If requested, skip printing of static fields. */
if (!static_field_print && TYPE_FIELD_STATIC (type, i))
continue;
+
+ /* If a vtable pointer appears, we'll print it out later */
+ if (TYPE_HAS_VTABLE(type) && STREQN(TYPE_FIELD_NAME (type, i), hpacc_vtbl_ptr_name, 5))
+ continue;
+
if (fields_seen)
fprintf_filtered (stream, ", ");
else if (n_baseclasses > 0)
language_cplus,
DMGL_PARAMS | DMGL_ANSI);
annotate_field_name_end ();
- fputs_filtered (" = ", stream);
+ /* do not print leading '=' in case of anonymous unions */
+ if (strcmp (TYPE_FIELD_NAME (type, i), ""))
+ fputs_filtered (" = ", stream);
annotate_field_value ();
}
else
{
v = value_from_longest (TYPE_FIELD_TYPE (type, i),
- unpack_field_as_long (type, valaddr, i));
+ unpack_field_as_long (type, valaddr + offset, i));
- val_print (TYPE_FIELD_TYPE(type, i), VALUE_CONTENTS (v), 0,
+ val_print (TYPE_FIELD_TYPE(type, i), VALUE_CONTENTS (v), 0, 0,
stream, format, 0, recurse + 1, pretty);
}
}
}
else if (TYPE_FIELD_STATIC (type, i))
{
- value_ptr v;
- char *phys_name = TYPE_FIELD_STATIC_PHYSNAME (type, i);
- struct symbol *sym =
- lookup_symbol (phys_name, 0, VAR_NAMESPACE, 0, NULL);
- if (sym == NULL)
+ value_ptr v = value_static_field (type, i);
+ if (v == NULL)
fputs_filtered ("<optimized out>", stream);
else
- {
- v = value_at (TYPE_FIELD_TYPE (type, i),
- (CORE_ADDR)SYMBOL_BLOCK_VALUE (sym));
- cp_print_static_field (TYPE_FIELD_TYPE (type, i), v,
- stream, format, recurse + 1,
- pretty);
- }
+ cp_print_static_field (TYPE_FIELD_TYPE (type, i), v,
+ stream, format, recurse + 1,
+ pretty);
}
else
{
val_print (TYPE_FIELD_TYPE (type, i),
- valaddr + TYPE_FIELD_BITPOS (type, i) / 8,
- 0, stream, format, 0, recurse + 1, pretty);
+ valaddr, offset + TYPE_FIELD_BITPOS (type, i) / 8,
+ address + TYPE_FIELD_BITPOS (type, i) / 8,
+ stream, format, 0, recurse + 1, pretty);
}
}
annotate_field_end ();
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 * recurse, stream);
}
- }
+ } /* if there are data fields */
+ /* Now print out the virtual table pointer if there is one */
+ if (TYPE_HAS_VTABLE(type) && STREQN(TYPE_FIELD_NAME (type, n_baseclasses), hpacc_vtbl_ptr_name, 5))
+ {
+ value_ptr v;
+ /* First get the virtual table pointer and print it out*/
+
+#if 0
+ fputs_filtered ("__vfp = ", stream);
+#endif
+
+ fputs_filtered (", Virtual table at ", stream);
+
+ /* pai: FIXME 32x64 problem? */
+ /* Not sure what the best notation is in the case where there is no
+ baseclass name. */
+ v = value_from_longest (lookup_pointer_type (builtin_type_unsigned_long),
+ * (unsigned long *) (valaddr + offset));
+
+ val_print (VALUE_TYPE (v), VALUE_CONTENTS (v), 0, 0,
+ stream, format, 0, recurse + 1, pretty);
+ fields_seen = 1;
+
+ if (vtblprint)
+ {
+ /* Print out function pointers in vtable. */
+
+ /* FIXME: then-clause is for non-RRBC layout of virtual
+ * table. The RRBC case in the else-clause is yet to be
+ * implemented. The if (1) below should be changed to a
+ * test for whether the executable we have was compiled
+ * with a version of HP aCC that doesn't have RRBC
+ * support. */
+
+ if (1)
+ {
+ /* no RRBC support; function pointers embedded directly in vtable */
+
+ int vfuncs = count_virtual_fns (real_type);
+
+ fputs_filtered (" {", stream);
+
+ /* FIXME : doesn't work at present */
+#if 0
+ fprintf_filtered (stream, "%d entr%s: ", vfuncs, vfuncs == 1 ? "y" : "ies");
+#else
+ fputs_filtered ("not implemented", stream);
+
+
+#endif
+
+ /* recursive function that prints all virtual function entries */
+#if 0
+ cp_print_hpacc_virtual_table_entries (real_type, &vfuncs, v, stream, format, recurse, pretty);
+#endif
+ fputs_filtered ("}", stream);
+ } /* non-RRBC case */
+ else
+ {
+ /* FIXME -- seem comments above */
+ /* RRBC support present; function pointers are found
+ * by indirection through the class segment entries. */
+
+
+ } /* RRBC case */
+ } /* if vtblprint */
+
+ if (pretty)
+ {
+ fprintf_filtered (stream, "\n");
+ print_spaces_filtered (2 * recurse, stream);
+ }
+
+ } /* if vtable exists */
+
fprintf_filtered (stream, "}");
}
baseclasses. */
static void
-cp_print_value (type, valaddr, address, stream, format, recurse, pretty,
+cp_print_value (type, real_type, valaddr, offset, address, stream, format, recurse, pretty,
dont_print_vb)
struct type *type;
+ struct type *real_type;
char *valaddr;
+ int offset;
CORE_ADDR address;
GDB_FILE *stream;
int format;
for (i = 0; i < n_baseclasses; i++)
{
int boffset;
+ int skip;
struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
char *basename = TYPE_NAME (baseclass);
+ char *base_valaddr;
if (BASETYPE_VIA_VIRTUAL (type, i))
{
obstack_ptr_grow (&dont_print_vb_obstack, baseclass);
}
- boffset = baseclass_offset (type, i , valaddr, address);
+ if (TYPE_HAS_VTABLE (type) && BASETYPE_VIA_VIRTUAL (type, i))
+ {
+ /* Assume HP/Taligent runtime convention */
+ find_rt_vbase_offset (type, TYPE_BASECLASS (type, i),
+ valaddr, offset, &boffset, &skip);
+ if (skip >= 0)
+ error ("Virtual base class offset not found from vtable while printing");
+ base_valaddr = valaddr;
+ }
+ else
+ {
+ boffset = baseclass_offset (type, i , valaddr + offset, address + offset);
+ skip = ((boffset == -1) || (boffset+offset) < 0 ) ? 1 : -1;
+
+ if (BASETYPE_VIA_VIRTUAL (type, i))
+ {
+ /* The virtual base class pointer might have been clobbered by the
+ user program. Make sure that it still points to a valid memory
+ location. */
+
+ if (boffset != -1 && ((boffset+offset) < 0 || (boffset+offset) >= TYPE_LENGTH (type)))
+ {
+ base_valaddr = (char *) alloca (TYPE_LENGTH (baseclass));
+ if (target_read_memory (address + boffset, base_valaddr,
+ TYPE_LENGTH (baseclass)) != 0)
+ skip = 1;
+ }
+ else
+ base_valaddr = valaddr;
+ }
+ else
+ base_valaddr = valaddr;
+ }
+ /* now do the printing */
if (pretty)
{
fprintf_filtered (stream, "\n");
baseclass name. */
fputs_filtered (basename ? basename : "", stream);
fputs_filtered ("> = ", stream);
- if (boffset == -1)
+
+
+ if (skip >= 1)
fprintf_filtered (stream, "<invalid address>");
else
- cp_print_value_fields (baseclass, valaddr + boffset, address + boffset,
+ cp_print_value_fields (baseclass, real_type, base_valaddr, offset + boffset, address,
stream, format, recurse, pretty,
(struct type **) obstack_base (&dont_print_vb_obstack),
0);
sizeof (CORE_ADDR));
CHECK_TYPEDEF (type);
- cp_print_value_fields (type, VALUE_CONTENTS (val), VALUE_ADDRESS (val),
+ cp_print_value_fields (type, type, VALUE_CONTENTS_ALL (val), VALUE_EMBEDDED_OFFSET (val), VALUE_ADDRESS (val),
stream, format, recurse, pretty, NULL, 1);
return;
}
- val_print (type, VALUE_CONTENTS (val), VALUE_ADDRESS (val),
+ val_print (type, VALUE_CONTENTS_ALL (val), VALUE_EMBEDDED_OFFSET (val), VALUE_ADDRESS (val),
stream, format, 0, recurse, pretty);
}
int bits = 0;
register unsigned int i;
unsigned len = TYPE_NFIELDS (domain);
+
/* @@ Make VAL into bit offset */
+
+ /* Note: HP aCC generates offsets that are the real byte offsets added
+ to a constant bias 0x20000000 (1 << 29). This constant bias gets
+ shifted out in the code below -- joyous happenstance! */
+
+ /* Note: HP cfront uses a constant bias of 1; if we support this
+ compiler ever, we will have to adjust the computation below */
+
LONGEST val = unpack_long (builtin_type_int, valaddr) << 3;
for (i = TYPE_N_BASECLASSES (domain); i < len; i++)
{
fprintf_filtered (stream, "%d", val >> 3);
}
+
+/* This function prints out virtual table entries for a class; it
+ * recurses on the base classes to find all virtual functions
+ * available in a class.
+ *
+ * pai/1997-05-21 Note: As the name suggests, it's currently
+ * implemented for HP aCC runtime only. g++ objects are handled
+ * differently and I have made no attempt to fold that logic in
+ * here. The runtime layout is different for the two cases. Also,
+ * this currently has only the code for non-RRBC layouts generated by
+ * the HP aCC compiler; RRBC code is stubbed out and will have to be
+ * added later. */
+
+
+static void
+cp_print_hpacc_virtual_table_entries (type, vfuncs, v, stream, format, recurse, pretty)
+ struct type * type;
+ int * vfuncs;
+ value_ptr v;
+ GDB_FILE *stream;
+ int format;
+ int recurse;
+ enum val_prettyprint pretty;
+{
+ int fn, oi;
+
+ /* pai: FIXME this function doesn't work. It should handle a given
+ * virtual function only once (latest redefinition in class hierarchy)
+ */
+
+ /* Recursion on other classes that can share the same vtable */
+ struct type * pbc = primary_base_class (type);
+ if (pbc)
+ cp_print_hpacc_virtual_table_entries (pbc, vfuncs, v, stream, format, recurse, pretty);
+
+ /* Now deal with vfuncs declared in this class */
+ for (fn = 0; fn < TYPE_NFN_FIELDS (type); fn++)
+ for (oi = 0; oi < TYPE_FN_FIELDLIST_LENGTH (type, fn); oi++)
+ if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (type, fn), oi))
+ {
+ char * vf_name;
+
+ /* virtual function offset */
+ int vx = TYPE_FN_FIELD_VOFFSET (TYPE_FN_FIELDLIST1 (type, fn), oi) - 1;
+
+ /* Get the address of the vfunction entry */
+ value_ptr vf = value_copy (v);
+ if (VALUE_LAZY (vf))
+ (void) value_fetch_lazy (vf);
+ vf->aligner.contents[0] += 4 * (HP_ACC_VFUNC_START + vx); /* adjust by offset */
+ vf = value_ind (vf); /* get the entry */
+ VALUE_TYPE (vf) = VALUE_TYPE (v); /* make it a pointer */
+
+ /* print out the entry */
+ val_print (VALUE_TYPE (vf), VALUE_CONTENTS (vf), 0, 0,
+ stream, format, 0, recurse + 1, pretty);
+ vf_name = cplus_demangle (TYPE_FN_FIELD_PHYSNAME (TYPE_FN_FIELDLIST1 (type, fn), oi),
+ DMGL_ARM); /* pai: (temp) FIXME Maybe this should be DMGL_ANSI */
+ fprintf_filtered (stream, " %s", vf_name);
+ if (--(*vfuncs) > 0)
+ fputs_filtered (", ", stream);
+ }
+}
+
+
+
void
_initialize_cp_valprint ()
{
projects / thirdparty / binutils-gdb.git / blobdiff