/* Demangler for IA64 / g++ V3 ABI.
- Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
Written by Alex Samuel <samuel@codesourcery.com>.
This file is part of GNU CC.
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
+ In addition to the permissions in the GNU General Public License, the
+ Free Software Foundation gives you unlimited permission to link the
+ compiled version of this file into combinations with other programs,
+ and to distribute those combinations without any restriction coming
+ from the use of this file. (The General Public License restrictions
+ do apply in other respects; for example, they cover modification of
+ the file, and distribution when not linked into a combined
+ executable.)
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#include <string.h>
#endif
+#include <ctype.h>
+
#include "ansidecl.h"
#include "libiberty.h"
#include "dyn-string.h"
return NULL;
}
dm->style = style;
- dm->is_constructor = 0;
- dm->is_destructor = 0;
+ dm->is_constructor = (enum gnu_v3_ctor_kinds) 0;
+ dm->is_destructor = (enum gnu_v3_dtor_kinds) 0;
return dm;
}
static status_t demangle_identifier
PARAMS ((demangling_t, int, dyn_string_t));
static status_t demangle_operator_name
- PARAMS ((demangling_t, int, int *));
+ PARAMS ((demangling_t, int, int *, int *));
static status_t demangle_nv_offset
PARAMS ((demangling_t));
static status_t demangle_v_offset
PARAMS ((demangling_t, int));
static status_t cp_demangle
PARAMS ((const char *, dyn_string_t, int));
-#ifdef IN_LIBGCC2
static status_t cp_demangle_type
PARAMS ((const char*, dyn_string_t));
-#endif
/* When passed to demangle_bare_function_type, indicates that the
function's return type is not encoded before its parameter types. */
else
{
if (error_message == NULL)
- error_message = strdup ("Expected ?");
+ error_message = (char *) strdup ("Expected ?");
error_message[9] = c;
return error_message;
}
if (peek == 'c' && peek_char_next (dm) == 'v')
*suppress_return_type = 1;
- RETURN_IF_ERROR (demangle_operator_name (dm, 0, &num_args));
+ RETURN_IF_ERROR (demangle_operator_name (dm, 0, &num_args, NULL));
}
else if (peek == 'C' || peek == 'D')
{
while (length-- > 0)
{
+ int ch;
if (end_of_name_p (dm))
return "Unexpected end of name in <identifier>.";
- if (!dyn_string_append_char (identifier, next_char (dm)))
+ ch = next_char (dm);
+
+ /* Handle extended Unicode characters. We encode them as __U{hex}_,
+ where {hex} omits leading 0's. For instance, '$' is encoded as
+ "__U24_". */
+ if (ch == '_'
+ && peek_char (dm) == '_'
+ && peek_char_next (dm) == 'U')
+ {
+ char buf[10];
+ int pos = 0;
+ advance_char (dm); advance_char (dm); length -= 2;
+ while (length-- > 0)
+ {
+ ch = next_char (dm);
+ if (!isxdigit (ch))
+ break;
+ buf[pos++] = ch;
+ }
+ if (ch != '_' || length < 0)
+ return STATUS_ERROR;
+ if (pos == 0)
+ {
+ /* __U_ just means __U. */
+ if (!dyn_string_append_cstr (identifier, "__U"))
+ return STATUS_ALLOCATION_FAILED;
+ continue;
+ }
+ else
+ {
+ buf[pos] = '\0';
+ ch = strtol (buf, 0, 16);
+ }
+ }
+
+ if (!dyn_string_append_char (identifier, ch))
return STATUS_ALLOCATION_FAILED;
}
/* Demangles and emits an <operator-name>. If SHORT_NAME is non-zero,
the short form is emitted; otherwise the full source form
(`operator +' etc.) is emitted. *NUM_ARGS is set to the number of
- operands that the operator takes.
+ operands that the operator takes. If TYPE_ARG is non-NULL,
+ *TYPE_ARG is set to 1 if the first argument is a type and 0
+ otherwise.
<operator-name>
::= nw # new
::= cl # ()
::= ix # []
::= qu # ?
- ::= sz # sizeof
+ ::= st # sizeof (a type)
+ ::= sz # sizeof (an expression)
::= cv <type> # cast
::= v [0-9] <source-name> # vendor extended operator */
static status_t
-demangle_operator_name (dm, short_name, num_args)
+demangle_operator_name (dm, short_name, num_args, type_arg)
demangling_t dm;
int short_name;
int *num_args;
+ int *type_arg;
{
struct operator_code
{
/* The mangled code for this operator. */
- const char *code;
+ const char *const code;
/* The source name of this operator. */
- const char *name;
+ const char *const name;
/* The number of arguments this operator takes. */
- int num_args;
+ const int num_args;
};
static const struct operator_code operators[] =
DEMANGLE_TRACE ("operator-name", dm);
+ /* Assume the first argument is not a type. */
+ if (type_arg)
+ *type_arg = 0;
+
/* Is this a vendor-extended operator? */
if (c0 == 'v' && IS_DIGIT (c1))
{
return STATUS_OK;
}
+ /* Is it the sizeof variant that takes a type? */
+ if (c0 == 's' && c1 == 't')
+ {
+ RETURN_IF_ERROR (result_add (dm, " sizeof"));
+ *num_args = 1;
+ if (type_arg)
+ *type_arg = 1;
+ return STATUS_OK;
+ }
+
/* Perform a binary search for the operator code. */
while (1)
{
/* An operator expression. */
{
int num_args;
+ int type_arg;
status_t status = STATUS_OK;
dyn_string_t operator_name;
operations in infix notation, capture the operator name
first. */
RETURN_IF_ERROR (result_push (dm));
- RETURN_IF_ERROR (demangle_operator_name (dm, 1, &num_args));
+ RETURN_IF_ERROR (demangle_operator_name (dm, 1, &num_args,
+ &type_arg));
operator_name = (dyn_string_t) result_pop (dm);
/* If it's binary, do an operand first. */
/* Emit its second (if binary) or only (if unary) operand. */
RETURN_IF_ERROR (result_add_char (dm, '('));
- RETURN_IF_ERROR (demangle_expression (dm));
+ if (type_arg)
+ RETURN_IF_ERROR (demangle_type (dm));
+ else
+ RETURN_IF_ERROR (demangle_expression (dm));
RETURN_IF_ERROR (result_add_char (dm, ')'));
/* The ternary operator takes a third operand. */
dyn_string_t. On success, returns STATUS_OK. On failiure, returns
an error message, and the contents of RESULT are unchanged. */
-#ifdef IN_LIBGCC2
static status_t
cp_demangle_type (type_name, result)
const char* type_name;
dyn_string_t result;
{
status_t status;
- demangling_t dm = demangling_new (type_name);
+ demangling_t dm = demangling_new (type_name, DMGL_GNU_V3);
if (dm == NULL)
return STATUS_ALLOCATION_FAILED;
return status;
}
+#if defined(IN_LIBGCC2) || defined(IN_GLIBCPP_V3)
extern char *__cxa_demangle PARAMS ((const char *, char *, size_t *, int *));
/* ia64 ABI-mandated entry point in the C++ runtime library for performing
}
}
-#else /* !IN_LIBGCC2 */
+#else /* ! (IN_LIBGCC2 || IN_GLIBCPP_V3) */
/* Variant entry point for integration with the existing cplus-dem
demangler. Attempts to demangle MANGLED. If the demangling
If the demangling failes, returns NULL. */
char *
-cplus_demangle_v3 (mangled)
+cplus_demangle_v3 (mangled, options)
const char* mangled;
+ int options;
{
dyn_string_t demangled;
status_t status;
+ int type = !!(options & DMGL_TYPES);
- /* If this isn't a mangled name, don't pretend to demangle it. */
- if (strncmp (mangled, "_Z", 2) != 0)
- return NULL;
+ if (mangled[0] == '_' && mangled[1] == 'Z')
+ /* It is not a type. */
+ type = 0;
+ else
+ {
+ /* It is a type. Stop if we don't want to demangle types. */
+ if (!type)
+ return NULL;
+ }
+
+ flag_verbose = !!(options & DMGL_VERBOSE);
/* Create a dyn_string to hold the demangled name. */
demangled = dyn_string_new (0);
/* Attempt the demangling. */
- status = cp_demangle ((char *) mangled, demangled, 0);
+ if (!type)
+ /* Appears to be a function or variable name. */
+ status = cp_demangle (mangled, demangled, 0);
+ else
+ /* Try to demangle it as the name of a type. */
+ status = cp_demangle_type (mangled, demangled);
if (STATUS_NO_ERROR (status))
/* Demangling succeeded. */
free (cplus_demangled);
- return_value = dyn_string_release (demangled);
+ if (demangled)
+ return_value = dyn_string_release (demangled);
+ else
+ return_value = NULL;
+
return return_value;
}
-#endif /* IN_LIBGCC2 */
+#endif /* IN_LIBGCC2 || IN_GLIBCPP_V3 */
+#ifndef IN_GLIBCPP_V3
/* Demangle NAME in the G++ V3 ABI demangling style, and return either
zero, indicating that some error occurred, or a demangling_t
holding the results. */
return result;
}
else
- return 0;
+ return (enum gnu_v3_ctor_kinds) 0;
}
return result;
}
else
- return 0;
+ return (enum gnu_v3_dtor_kinds) 0;
}
+#endif /* IN_GLIBCPP_V3 */
#ifdef STANDALONE_DEMANGLER
}
/* Option specification for getopt_long. */
-static struct option long_options[] =
+static const struct option long_options[] =
{
{ "help", no_argument, NULL, 'h' },
{ "strict", no_argument, NULL, 's' },
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