1999-05-03 09:29:11 +02:00
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/* Defs for interface to demanglers.
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2017-01-02 04:36:43 +01:00
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Copyright (C) 1992-2017 Free Software Foundation, Inc.
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2015-07-14 18:14:50 +02:00
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2007-04-26 05:13:46 +02:00
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License
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as published by the Free Software Foundation; either version 2, or
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(at your option) any later version.
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In addition to the permissions in the GNU Library General Public
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License, the Free Software Foundation gives you unlimited
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permission to link the compiled version of this file into
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combinations with other programs, and to distribute those
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combinations without any restriction coming from the use of this
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file. (The Library Public License restrictions do apply in other
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respects; for example, they cover modification of the file, and
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distribution when not linked into a combined executable.)
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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1999-05-03 09:29:11 +02:00
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#if !defined (DEMANGLE_H)
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#define DEMANGLE_H
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2004-01-13 04:07:16 +01:00
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#include "libiberty.h"
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2004-01-13 02:51:08 +01:00
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2003-07-06 23:44:55 +02:00
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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1999-05-03 09:29:11 +02:00
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/* Options passed to cplus_demangle (in 2nd parameter). */
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2000-06-15 22:47:02 +02:00
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#define DMGL_NO_OPTS 0 /* For readability... */
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#define DMGL_PARAMS (1 << 0) /* Include function args */
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#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
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#define DMGL_JAVA (1 << 2) /* Demangle as Java rather than C++. */
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2002-02-05 18:53:17 +01:00
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#define DMGL_VERBOSE (1 << 3) /* Include implementation details. */
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#define DMGL_TYPES (1 << 4) /* Also try to demangle type encodings. */
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2005-12-11 03:16:09 +01:00
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#define DMGL_RET_POSTFIX (1 << 5) /* Print function return types (when
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2011-06-14 01:01:48 +02:00
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present) after function signature.
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It applies only to the toplevel
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function type. */
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#define DMGL_RET_DROP (1 << 6) /* Suppress printing function return
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types, even if present. It applies
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only to the toplevel function type.
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*/
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2000-06-15 22:47:02 +02:00
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#define DMGL_AUTO (1 << 8)
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#define DMGL_GNU (1 << 9)
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#define DMGL_LUCID (1 << 10)
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#define DMGL_ARM (1 << 11)
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#define DMGL_HP (1 << 12) /* For the HP aCC compiler;
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same as ARM except for
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template arguments, etc. */
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#define DMGL_EDG (1 << 13)
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2000-12-05 17:49:47 +01:00
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#define DMGL_GNU_V3 (1 << 14)
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2000-11-15 12:47:51 +01:00
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#define DMGL_GNAT (1 << 15)
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2014-10-11 11:29:10 +02:00
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#define DMGL_DLANG (1 << 16)
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2016-11-17 00:09:27 +01:00
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#define DMGL_RUST (1 << 17) /* Rust wraps GNU_V3 style mangling. */
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1999-05-03 09:29:11 +02:00
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/* If none of these are set, use 'current_demangling_style' as the default. */
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2016-11-17 00:09:27 +01:00
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#define DMGL_STYLE_MASK (DMGL_AUTO|DMGL_GNU|DMGL_LUCID|DMGL_ARM|DMGL_HP|DMGL_EDG|DMGL_GNU_V3|DMGL_JAVA|DMGL_GNAT|DMGL_DLANG|DMGL_RUST)
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1999-05-03 09:29:11 +02:00
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/* Enumeration of possible demangling styles.
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Lucid and ARM styles are still kept logically distinct, even though
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they now both behave identically. The resulting style is actual the
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union of both. I.E. either style recognizes both "__pt__" and "__rf__"
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for operator "->", even though the first is lucid style and the second
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is ARM style. (FIXME?) */
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extern enum demangling_styles
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{
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2001-12-06 22:57:28 +01:00
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no_demangling = -1,
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1999-05-03 09:29:11 +02:00
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unknown_demangling = 0,
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auto_demangling = DMGL_AUTO,
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gnu_demangling = DMGL_GNU,
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lucid_demangling = DMGL_LUCID,
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arm_demangling = DMGL_ARM,
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hp_demangling = DMGL_HP,
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2000-06-15 22:47:02 +02:00
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edg_demangling = DMGL_EDG,
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2000-12-05 17:49:47 +01:00
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gnu_v3_demangling = DMGL_GNU_V3,
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2000-11-15 12:47:51 +01:00
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java_demangling = DMGL_JAVA,
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2014-10-11 11:29:10 +02:00
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gnat_demangling = DMGL_GNAT,
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2016-11-17 00:09:27 +01:00
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dlang_demangling = DMGL_DLANG,
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rust_demangling = DMGL_RUST
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1999-05-03 09:29:11 +02:00
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} current_demangling_style;
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/* Define string names for the various demangling styles. */
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2001-12-06 22:57:28 +01:00
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#define NO_DEMANGLING_STYLE_STRING "none"
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2000-06-15 22:47:02 +02:00
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#define AUTO_DEMANGLING_STYLE_STRING "auto"
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#define GNU_DEMANGLING_STYLE_STRING "gnu"
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#define LUCID_DEMANGLING_STYLE_STRING "lucid"
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#define ARM_DEMANGLING_STYLE_STRING "arm"
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#define HP_DEMANGLING_STYLE_STRING "hp"
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#define EDG_DEMANGLING_STYLE_STRING "edg"
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2000-12-05 17:49:47 +01:00
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#define GNU_V3_DEMANGLING_STYLE_STRING "gnu-v3"
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2000-11-15 12:47:51 +01:00
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#define JAVA_DEMANGLING_STYLE_STRING "java"
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#define GNAT_DEMANGLING_STYLE_STRING "gnat"
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2014-10-11 11:29:10 +02:00
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#define DLANG_DEMANGLING_STYLE_STRING "dlang"
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2016-11-17 00:09:27 +01:00
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#define RUST_DEMANGLING_STYLE_STRING "rust"
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1999-05-03 09:29:11 +02:00
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/* Some macros to test what demangling style is active. */
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#define CURRENT_DEMANGLING_STYLE current_demangling_style
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#define AUTO_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_AUTO)
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#define GNU_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU)
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#define LUCID_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_LUCID)
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#define ARM_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_ARM)
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#define HP_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_HP)
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#define EDG_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_EDG)
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2000-12-05 17:49:47 +01:00
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#define GNU_V3_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU_V3)
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2000-11-15 12:47:51 +01:00
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#define JAVA_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_JAVA)
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#define GNAT_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNAT)
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2014-10-11 11:29:10 +02:00
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#define DLANG_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_DLANG)
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2016-11-17 00:09:27 +01:00
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#define RUST_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_RUST)
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2000-06-15 22:47:02 +02:00
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/* Provide information about the available demangle styles. This code is
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pulled from gdb into libiberty because it is useful to binutils also. */
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2001-10-07 19:24:36 +02:00
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extern const struct demangler_engine
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2000-06-15 22:47:02 +02:00
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{
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2001-10-07 19:24:36 +02:00
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const char *const demangling_style_name;
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const enum demangling_styles demangling_style;
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const char *const demangling_style_doc;
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2000-06-15 22:47:02 +02:00
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} libiberty_demanglers[];
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1999-05-03 09:29:11 +02:00
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extern char *
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2005-03-27 07:28:42 +02:00
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cplus_demangle (const char *mangled, int options);
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1999-05-03 09:29:11 +02:00
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extern int
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2005-03-27 07:28:42 +02:00
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cplus_demangle_opname (const char *opname, char *result, int options);
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1999-05-03 09:29:11 +02:00
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extern const char *
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2005-03-27 07:28:42 +02:00
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cplus_mangle_opname (const char *opname, int options);
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1999-05-03 09:29:11 +02:00
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/* Note: This sets global state. FIXME if you care about multi-threading. */
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extern void
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2005-03-27 07:28:42 +02:00
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set_cplus_marker_for_demangling (int ch);
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1999-05-03 09:29:11 +02:00
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2015-07-14 18:14:50 +02:00
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extern enum demangling_styles
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2005-03-27 07:28:42 +02:00
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cplus_demangle_set_style (enum demangling_styles style);
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2000-06-15 22:47:02 +02:00
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2015-07-14 18:14:50 +02:00
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extern enum demangling_styles
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2005-03-27 07:28:42 +02:00
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cplus_demangle_name_to_style (const char *name);
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2000-06-15 22:47:02 +02:00
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2007-01-31 00:16:58 +01:00
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/* Callback typedef for allocation-less demangler interfaces. */
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typedef void (*demangle_callbackref) (const char *, size_t, void *);
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/* V3 ABI demangling entry points, defined in cp-demangle.c. Callback
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variants return non-zero on success, zero on error. char* variants
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return a string allocated by malloc on success, NULL on error. */
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extern int
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cplus_demangle_v3_callback (const char *mangled, int options,
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demangle_callbackref callback, void *opaque);
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2002-02-03 14:12:45 +01:00
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2001-02-02 19:58:51 +01:00
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extern char*
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2007-01-31 00:16:58 +01:00
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cplus_demangle_v3 (const char *mangled, int options);
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2001-02-02 19:58:51 +01:00
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2007-01-31 00:16:58 +01:00
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extern int
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java_demangle_v3_callback (const char *mangled,
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demangle_callbackref callback, void *opaque);
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extern char*
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java_demangle_v3 (const char *mangled);
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2001-03-20 19:22:38 +01:00
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2010-01-11 20:12:47 +01:00
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char *
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ada_demangle (const char *mangled, int options);
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2014-10-11 11:29:10 +02:00
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extern char *
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dlang_demangle (const char *mangled, int options);
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2016-11-17 00:09:27 +01:00
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/* Returns non-zero iff MANGLED is a rust mangled symbol. MANGLED must
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already have been demangled through cplus_demangle_v3. If this function
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returns non-zero then MANGLED can be demangled (in-place) using
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RUST_DEMANGLE_SYM. */
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extern int
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rust_is_mangled (const char *mangled);
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/* Demangles SYM (in-place) if RUST_IS_MANGLED returned non-zero for SYM.
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If RUST_IS_MANGLED returned zero for SYM then RUST_DEMANGLE_SYM might
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replace characters that cannot be demangled with '?' and might truncate
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SYM. After calling RUST_DEMANGLE_SYM SYM might be shorter, but never
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larger. */
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extern void
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rust_demangle_sym (char *sym);
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/* Demangles MANGLED if it was GNU_V3 and then RUST mangled, otherwise
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returns NULL. Uses CPLUS_DEMANGLE_V3, RUST_IS_MANGLED and
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RUST_DEMANGLE_SYM. Returns a new string that is owned by the caller. */
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extern char *
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rust_demangle (const char *mangled, int options);
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2001-03-20 19:22:38 +01:00
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enum gnu_v3_ctor_kinds {
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gnu_v3_complete_object_ctor = 1,
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gnu_v3_base_object_ctor,
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2011-11-08 17:01:58 +01:00
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gnu_v3_complete_object_allocating_ctor,
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2013-12-23 18:49:47 +01:00
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/* These are not part of the V3 ABI. Unified constructors are generated
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as a speed-for-space optimization when the -fdeclone-ctor-dtor option
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is used, and are always internal symbols. */
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gnu_v3_unified_ctor,
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2011-11-08 17:01:58 +01:00
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gnu_v3_object_ctor_group
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2001-03-20 19:22:38 +01:00
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};
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/* Return non-zero iff NAME is the mangled form of a constructor name
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in the G++ V3 ABI demangling style. Specifically, return an `enum
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gnu_v3_ctor_kinds' value indicating what kind of constructor
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it is. */
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2001-05-08 16:35:18 +02:00
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extern enum gnu_v3_ctor_kinds
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2005-03-27 07:28:42 +02:00
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is_gnu_v3_mangled_ctor (const char *name);
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2001-03-20 19:22:38 +01:00
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enum gnu_v3_dtor_kinds {
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gnu_v3_deleting_dtor = 1,
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gnu_v3_complete_object_dtor,
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2011-11-08 17:01:58 +01:00
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gnu_v3_base_object_dtor,
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2013-12-23 18:49:47 +01:00
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/* These are not part of the V3 ABI. Unified destructors are generated
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as a speed-for-space optimization when the -fdeclone-ctor-dtor option
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is used, and are always internal symbols. */
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gnu_v3_unified_dtor,
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2011-11-08 17:01:58 +01:00
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gnu_v3_object_dtor_group
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2001-03-20 19:22:38 +01:00
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};
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/* Return non-zero iff NAME is the mangled form of a destructor name
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in the G++ V3 ABI demangling style. Specifically, return an `enum
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gnu_v3_dtor_kinds' value, indicating what kind of destructor
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it is. */
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2001-05-08 16:35:18 +02:00
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extern enum gnu_v3_dtor_kinds
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2005-03-27 07:28:42 +02:00
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is_gnu_v3_mangled_dtor (const char *name);
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2001-03-20 19:22:38 +01:00
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2004-01-12 22:24:38 +01:00
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/* The V3 demangler works in two passes. The first pass builds a tree
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representation of the mangled name, and the second pass turns the
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tree representation into a demangled string. Here we define an
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interface to permit a caller to build their own tree
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representation, which they can pass to the demangler to get a
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demangled string. This can be used to canonicalize user input into
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something which the demangler might output. It could also be used
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by other demanglers in the future. */
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/* These are the component types which may be found in the tree. Many
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component types have one or two subtrees, referred to as left and
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right (a component type with only one subtree puts it in the left
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subtree). */
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enum demangle_component_type
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{
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/* A name, with a length and a pointer to a string. */
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DEMANGLE_COMPONENT_NAME,
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/* A qualified name. The left subtree is a class or namespace or
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some such thing, and the right subtree is a name qualified by
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that class. */
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DEMANGLE_COMPONENT_QUAL_NAME,
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/* A local name. The left subtree describes a function, and the
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right subtree is a name which is local to that function. */
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DEMANGLE_COMPONENT_LOCAL_NAME,
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/* A typed name. The left subtree is a name, and the right subtree
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describes that name as a function. */
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DEMANGLE_COMPONENT_TYPED_NAME,
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/* A template. The left subtree is a template name, and the right
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subtree is a template argument list. */
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DEMANGLE_COMPONENT_TEMPLATE,
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/* A template parameter. This holds a number, which is the template
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parameter index. */
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|
|
|
DEMANGLE_COMPONENT_TEMPLATE_PARAM,
|
2009-03-18 01:07:49 +01:00
|
|
|
/* A function parameter. This holds a number, which is the index. */
|
|
|
|
DEMANGLE_COMPONENT_FUNCTION_PARAM,
|
2004-01-12 22:24:38 +01:00
|
|
|
/* A constructor. This holds a name and the kind of
|
|
|
|
constructor. */
|
|
|
|
DEMANGLE_COMPONENT_CTOR,
|
|
|
|
/* A destructor. This holds a name and the kind of destructor. */
|
|
|
|
DEMANGLE_COMPONENT_DTOR,
|
|
|
|
/* A vtable. This has one subtree, the type for which this is a
|
|
|
|
vtable. */
|
|
|
|
DEMANGLE_COMPONENT_VTABLE,
|
|
|
|
/* A VTT structure. This has one subtree, the type for which this
|
|
|
|
is a VTT. */
|
|
|
|
DEMANGLE_COMPONENT_VTT,
|
|
|
|
/* A construction vtable. The left subtree is the type for which
|
|
|
|
this is a vtable, and the right subtree is the derived type for
|
|
|
|
which this vtable is built. */
|
|
|
|
DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE,
|
|
|
|
/* A typeinfo structure. This has one subtree, the type for which
|
|
|
|
this is the tpeinfo structure. */
|
|
|
|
DEMANGLE_COMPONENT_TYPEINFO,
|
|
|
|
/* A typeinfo name. This has one subtree, the type for which this
|
|
|
|
is the typeinfo name. */
|
|
|
|
DEMANGLE_COMPONENT_TYPEINFO_NAME,
|
|
|
|
/* A typeinfo function. This has one subtree, the type for which
|
|
|
|
this is the tpyeinfo function. */
|
|
|
|
DEMANGLE_COMPONENT_TYPEINFO_FN,
|
|
|
|
/* A thunk. This has one subtree, the name for which this is a
|
|
|
|
thunk. */
|
|
|
|
DEMANGLE_COMPONENT_THUNK,
|
|
|
|
/* A virtual thunk. This has one subtree, the name for which this
|
|
|
|
is a virtual thunk. */
|
|
|
|
DEMANGLE_COMPONENT_VIRTUAL_THUNK,
|
|
|
|
/* A covariant thunk. This has one subtree, the name for which this
|
|
|
|
is a covariant thunk. */
|
|
|
|
DEMANGLE_COMPONENT_COVARIANT_THUNK,
|
|
|
|
/* A Java class. This has one subtree, the type. */
|
|
|
|
DEMANGLE_COMPONENT_JAVA_CLASS,
|
|
|
|
/* A guard variable. This has one subtree, the name for which this
|
|
|
|
is a guard variable. */
|
|
|
|
DEMANGLE_COMPONENT_GUARD,
|
2012-10-10 05:11:33 +02:00
|
|
|
/* The init and wrapper functions for C++11 thread_local variables. */
|
|
|
|
DEMANGLE_COMPONENT_TLS_INIT,
|
|
|
|
DEMANGLE_COMPONENT_TLS_WRAPPER,
|
2004-01-12 22:24:38 +01:00
|
|
|
/* A reference temporary. This has one subtree, the name for which
|
|
|
|
this is a temporary. */
|
|
|
|
DEMANGLE_COMPONENT_REFTEMP,
|
2005-05-26 01:32:36 +02:00
|
|
|
/* A hidden alias. This has one subtree, the encoding for which it
|
|
|
|
is providing alternative linkage. */
|
|
|
|
DEMANGLE_COMPONENT_HIDDEN_ALIAS,
|
2004-01-12 22:24:38 +01:00
|
|
|
/* A standard substitution. This holds the name of the
|
|
|
|
substitution. */
|
|
|
|
DEMANGLE_COMPONENT_SUB_STD,
|
|
|
|
/* The restrict qualifier. The one subtree is the type which is
|
|
|
|
being qualified. */
|
|
|
|
DEMANGLE_COMPONENT_RESTRICT,
|
|
|
|
/* The volatile qualifier. The one subtree is the type which is
|
|
|
|
being qualified. */
|
|
|
|
DEMANGLE_COMPONENT_VOLATILE,
|
|
|
|
/* The const qualifier. The one subtree is the type which is being
|
|
|
|
qualified. */
|
|
|
|
DEMANGLE_COMPONENT_CONST,
|
|
|
|
/* The restrict qualifier modifying a member function. The one
|
|
|
|
subtree is the type which is being qualified. */
|
|
|
|
DEMANGLE_COMPONENT_RESTRICT_THIS,
|
|
|
|
/* The volatile qualifier modifying a member function. The one
|
|
|
|
subtree is the type which is being qualified. */
|
|
|
|
DEMANGLE_COMPONENT_VOLATILE_THIS,
|
|
|
|
/* The const qualifier modifying a member function. The one subtree
|
|
|
|
is the type which is being qualified. */
|
|
|
|
DEMANGLE_COMPONENT_CONST_THIS,
|
2013-04-03 20:21:49 +02:00
|
|
|
/* C++11 A reference modifying a member function. The one subtree is the
|
|
|
|
type which is being referenced. */
|
|
|
|
DEMANGLE_COMPONENT_REFERENCE_THIS,
|
|
|
|
/* C++11: An rvalue reference modifying a member function. The one
|
|
|
|
subtree is the type which is being referenced. */
|
|
|
|
DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS,
|
2004-01-12 22:24:38 +01:00
|
|
|
/* A vendor qualifier. The left subtree is the type which is being
|
|
|
|
qualified, and the right subtree is the name of the
|
|
|
|
qualifier. */
|
|
|
|
DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL,
|
|
|
|
/* A pointer. The one subtree is the type which is being pointed
|
|
|
|
to. */
|
|
|
|
DEMANGLE_COMPONENT_POINTER,
|
|
|
|
/* A reference. The one subtree is the type which is being
|
|
|
|
referenced. */
|
|
|
|
DEMANGLE_COMPONENT_REFERENCE,
|
2007-08-31 22:20:49 +02:00
|
|
|
/* C++0x: An rvalue reference. The one subtree is the type which is
|
|
|
|
being referenced. */
|
|
|
|
DEMANGLE_COMPONENT_RVALUE_REFERENCE,
|
2004-01-12 22:24:38 +01:00
|
|
|
/* A complex type. The one subtree is the base type. */
|
|
|
|
DEMANGLE_COMPONENT_COMPLEX,
|
|
|
|
/* An imaginary type. The one subtree is the base type. */
|
|
|
|
DEMANGLE_COMPONENT_IMAGINARY,
|
|
|
|
/* A builtin type. This holds the builtin type information. */
|
|
|
|
DEMANGLE_COMPONENT_BUILTIN_TYPE,
|
|
|
|
/* A vendor's builtin type. This holds the name of the type. */
|
|
|
|
DEMANGLE_COMPONENT_VENDOR_TYPE,
|
|
|
|
/* A function type. The left subtree is the return type. The right
|
|
|
|
subtree is a list of ARGLIST nodes. Either or both may be
|
|
|
|
NULL. */
|
|
|
|
DEMANGLE_COMPONENT_FUNCTION_TYPE,
|
|
|
|
/* An array type. The left subtree is the dimension, which may be
|
|
|
|
NULL, or a string (represented as DEMANGLE_COMPONENT_NAME), or an
|
|
|
|
expression. The right subtree is the element type. */
|
|
|
|
DEMANGLE_COMPONENT_ARRAY_TYPE,
|
|
|
|
/* A pointer to member type. The left subtree is the class type,
|
|
|
|
and the right subtree is the member type. CV-qualifiers appear
|
|
|
|
on the latter. */
|
|
|
|
DEMANGLE_COMPONENT_PTRMEM_TYPE,
|
2008-12-11 00:28:19 +01:00
|
|
|
/* A fixed-point type. */
|
|
|
|
DEMANGLE_COMPONENT_FIXED_TYPE,
|
2010-02-04 00:28:01 +01:00
|
|
|
/* A vector type. The left subtree is the number of elements,
|
|
|
|
the right subtree is the element type. */
|
|
|
|
DEMANGLE_COMPONENT_VECTOR_TYPE,
|
2004-01-12 22:24:38 +01:00
|
|
|
/* An argument list. The left subtree is the current argument, and
|
|
|
|
the right subtree is either NULL or another ARGLIST node. */
|
|
|
|
DEMANGLE_COMPONENT_ARGLIST,
|
|
|
|
/* A template argument list. The left subtree is the current
|
|
|
|
template argument, and the right subtree is either NULL or
|
|
|
|
another TEMPLATE_ARGLIST node. */
|
|
|
|
DEMANGLE_COMPONENT_TEMPLATE_ARGLIST,
|
2012-01-07 03:53:16 +01:00
|
|
|
/* An initializer list. The left subtree is either an explicit type or
|
|
|
|
NULL, and the right subtree is a DEMANGLE_COMPONENT_ARGLIST. */
|
|
|
|
DEMANGLE_COMPONENT_INITIALIZER_LIST,
|
2004-01-12 22:24:38 +01:00
|
|
|
/* An operator. This holds information about a standard
|
|
|
|
operator. */
|
|
|
|
DEMANGLE_COMPONENT_OPERATOR,
|
|
|
|
/* An extended operator. This holds the number of arguments, and
|
|
|
|
the name of the extended operator. */
|
|
|
|
DEMANGLE_COMPONENT_EXTENDED_OPERATOR,
|
|
|
|
/* A typecast, represented as a unary operator. The one subtree is
|
|
|
|
the type to which the argument should be cast. */
|
|
|
|
DEMANGLE_COMPONENT_CAST,
|
PR other/61321 - demangler crash on casts in template parameters
The fix for bug 59195:
[C++ demangler handles conversion operator incorrectly]
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59195
unfortunately makes the demangler crash due to infinite recursion, in
case of casts in template parameters.
For example, with:
template<int> struct A {};
template <typename Y> void function_temp(A<sizeof ((Y)(999))>) {}
template void function_temp<int>(A<sizeof (int)>);
The 'function_temp<int>' instantiation above mangles to:
_Z13function_tempIiEv1AIXszcvT_Li999EEE
The demangler parses this as:
typed name
template
name 'function_temp'
template argument list
builtin type int
function type
builtin type void
argument list
template (*)
name 'A'
template argument list
unary operator
operator sizeof
unary operator
cast
template parameter 0 (**)
literal
builtin type int
name '999'
And after the fix for 59195, due to:
static void
d_print_cast (struct d_print_info *dpi, int options,
const struct demangle_component *dc)
{
...
/* For a cast operator, we need the template parameters from
the enclosing template in scope for processing the type. */
if (dpi->current_template != NULL)
{
dpt.next = dpi->templates;
dpi->templates = &dpt;
dpt.template_decl = dpi->current_template;
}
when printing the template argument list of A (what should be "<sizeof
(int)>"), the template parameter 0 (that is, "T_", the '**' above) now
refers to the first parameter of the the template argument list of the
'A' template (the '*' above), exactly what we were already trying to
print. This leads to infinite recursion, and stack exaustion. The
template parameter 0 should actually refer to the first parameter of
the 'function_temp' template.
Where it reads "for the cast operator" in the comment in d_print_cast
(above), it's really talking about a conversion operator, like:
struct A { template <typename U> explicit operator U(); };
We don't want to inject the template parameters from the enclosing
template in scope when processing a cast _expression_, only when
handling a conversion operator.
The problem is that DEMANGLE_COMPONENT_CAST is currently ambiguous,
and means _both_ 'conversion operator' and 'cast expression'.
Fix this by adding a new DEMANGLE_COMPONENT_CONVERSION component type,
which does what DEMANGLE_COMPONENT_CAST does today, and making
DEMANGLE_COMPONENT_CAST just simply print its component subtree.
I think we could instead reuse DEMANGLE_COMPONENT_CAST and in
d_print_comp_inner still do:
@@ -5001,9 +5013,9 @@ d_print_comp_inner (struct d_print_info *dpi, int options,
d_print_comp (dpi, options, dc->u.s_extended_operator.name);
return;
case DEMANGLE_COMPONENT_CAST:
d_append_string (dpi, "operator ");
- d_print_cast (dpi, options, dc);
+ d_print_conversion (dpi, options, dc);
return;
leaving the unary cast case below calling d_print_cast, but seems to
me that spliting the component types makes it easier to reason about
the code.
g++'s testsuite actually generates three symbols that crash the
demangler in the same way. I've added those as tests in the demangler
testsuite as well.
And then this fixes PR other/61233 too, which happens to be a
demangler crash originally reported to GDB, at:
https://sourceware.org/bugzilla/show_bug.cgi?id=16957
Bootstrapped and regtested on x86_64 Fedora 20.
Also ran this through GDB's testsuite. GDB will require a small
update to use DEMANGLE_COMPONENT_CONVERSION in one place it's using
DEMANGLE_COMPONENT_CAST in its sources.
libiberty/
2015-11-27 Pedro Alves <palves@redhat.com>
PR other/61321
PR other/61233
* demangle.h (enum demangle_component_type)
<DEMANGLE_COMPONENT_CONVERSION>: New value.
* cp-demangle.c (d_demangle_callback, d_make_comp): Handle
DEMANGLE_COMPONENT_CONVERSION.
(is_ctor_dtor_or_conversion): Handle DEMANGLE_COMPONENT_CONVERSION
instead of DEMANGLE_COMPONENT_CAST.
(d_operator_name): Return a DEMANGLE_COMPONENT_CONVERSION
component if handling a conversion.
(d_count_templates_scopes, d_print_comp_inner): Handle
DEMANGLE_COMPONENT_CONVERSION.
(d_print_comp_inner): Handle DEMANGLE_COMPONENT_CONVERSION instead
of DEMANGLE_COMPONENT_CAST.
(d_print_cast): Rename as ...
(d_print_conversion): ... this. Adjust comments.
(d_print_cast): Rewrite - simply print the left subcomponent.
* cp-demint.c (cplus_demangle_fill_component): Handle
DEMANGLE_COMPONENT_CONVERSION.
* testsuite/demangle-expected: Add tests.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231020 138bc75d-0d04-0410-961f-82ee72b054a4
2015-11-28 17:39:31 +01:00
|
|
|
/* A conversion operator, represented as a unary operator. The one
|
|
|
|
subtree is the type to which the argument should be converted
|
|
|
|
to. */
|
|
|
|
DEMANGLE_COMPONENT_CONVERSION,
|
2012-01-07 03:53:16 +01:00
|
|
|
/* A nullary expression. The left subtree is the operator. */
|
|
|
|
DEMANGLE_COMPONENT_NULLARY,
|
2004-01-12 22:24:38 +01:00
|
|
|
/* A unary expression. The left subtree is the operator, and the
|
|
|
|
right subtree is the single argument. */
|
|
|
|
DEMANGLE_COMPONENT_UNARY,
|
|
|
|
/* A binary expression. The left subtree is the operator, and the
|
|
|
|
right subtree is a BINARY_ARGS. */
|
|
|
|
DEMANGLE_COMPONENT_BINARY,
|
|
|
|
/* Arguments to a binary expression. The left subtree is the first
|
|
|
|
argument, and the right subtree is the second argument. */
|
|
|
|
DEMANGLE_COMPONENT_BINARY_ARGS,
|
|
|
|
/* A trinary expression. The left subtree is the operator, and the
|
|
|
|
right subtree is a TRINARY_ARG1. */
|
|
|
|
DEMANGLE_COMPONENT_TRINARY,
|
|
|
|
/* Arguments to a trinary expression. The left subtree is the first
|
|
|
|
argument, and the right subtree is a TRINARY_ARG2. */
|
|
|
|
DEMANGLE_COMPONENT_TRINARY_ARG1,
|
|
|
|
/* More arguments to a trinary expression. The left subtree is the
|
|
|
|
second argument, and the right subtree is the third argument. */
|
|
|
|
DEMANGLE_COMPONENT_TRINARY_ARG2,
|
|
|
|
/* A literal. The left subtree is the type, and the right subtree
|
|
|
|
is the value, represented as a DEMANGLE_COMPONENT_NAME. */
|
|
|
|
DEMANGLE_COMPONENT_LITERAL,
|
|
|
|
/* A negative literal. Like LITERAL, but the value is negated.
|
|
|
|
This is a minor hack: the NAME used for LITERAL points directly
|
|
|
|
to the mangled string, but since negative numbers are mangled
|
|
|
|
using 'n' instead of '-', we want a way to indicate a negative
|
|
|
|
number which involves neither modifying the mangled string nor
|
|
|
|
allocating a new copy of the literal in memory. */
|
2008-01-27 07:25:45 +01:00
|
|
|
DEMANGLE_COMPONENT_LITERAL_NEG,
|
|
|
|
/* A libgcj compiled resource. The left subtree is the name of the
|
|
|
|
resource. */
|
|
|
|
DEMANGLE_COMPONENT_JAVA_RESOURCE,
|
|
|
|
/* A name formed by the concatenation of two parts. The left
|
|
|
|
subtree is the first part and the right subtree the second. */
|
|
|
|
DEMANGLE_COMPONENT_COMPOUND_NAME,
|
|
|
|
/* A name formed by a single character. */
|
2008-09-09 20:21:49 +02:00
|
|
|
DEMANGLE_COMPONENT_CHARACTER,
|
2010-02-04 00:28:01 +01:00
|
|
|
/* A number. */
|
|
|
|
DEMANGLE_COMPONENT_NUMBER,
|
2008-09-09 20:21:49 +02:00
|
|
|
/* A decltype type. */
|
2008-10-07 03:28:01 +02:00
|
|
|
DEMANGLE_COMPONENT_DECLTYPE,
|
2009-07-17 22:20:45 +02:00
|
|
|
/* Global constructors keyed to name. */
|
|
|
|
DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS,
|
|
|
|
/* Global destructors keyed to name. */
|
|
|
|
DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS,
|
2009-10-02 20:23:01 +02:00
|
|
|
/* A lambda closure type. */
|
|
|
|
DEMANGLE_COMPONENT_LAMBDA,
|
|
|
|
/* A default argument scope. */
|
|
|
|
DEMANGLE_COMPONENT_DEFAULT_ARG,
|
|
|
|
/* An unnamed type. */
|
|
|
|
DEMANGLE_COMPONENT_UNNAMED_TYPE,
|
2011-11-08 17:01:58 +01:00
|
|
|
/* A transactional clone. This has one subtree, the encoding for
|
|
|
|
which it is providing alternative linkage. */
|
|
|
|
DEMANGLE_COMPONENT_TRANSACTION_CLONE,
|
|
|
|
/* A non-transactional clone entry point. In the i386/x86_64 abi,
|
|
|
|
the unmangled symbol of a tm_callable becomes a thunk and the
|
|
|
|
non-transactional function version is mangled thus. */
|
|
|
|
DEMANGLE_COMPONENT_NONTRANSACTION_CLONE,
|
2008-10-07 03:28:01 +02:00
|
|
|
/* A pack expansion. */
|
2011-09-24 00:21:36 +02:00
|
|
|
DEMANGLE_COMPONENT_PACK_EXPANSION,
|
2012-11-11 23:37:30 +01:00
|
|
|
/* A name with an ABI tag. */
|
|
|
|
DEMANGLE_COMPONENT_TAGGED_NAME,
|
Implement N4514, C++ Extensions for Transactional Memory.
gcc/
* builtins.def (BUILT_IN_ABORT): Add transaction_pure attribute.
gcc/c-family/
* c-common.c (c_common_reswords): Add C++ TM TS keywords.
(c_common_attribute_table): Add transaction_safe_dynamic.
transaction_safe now affects type identity.
(handle_tm_attribute): Handle transaction_safe_dynamic.
* c-common.h (enum rid): Add RID_ATOMIC_NOEXCEPT,
RID_ATOMIC_CANCEL, RID_SYNCHRONIZED.
(OBJC_IS_CXX_KEYWORD): Add RID_SYNCHRONIZED.
(D_TRANSMEM): New.
* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_transactional_memory.
* c-pretty-print.c (pp_c_attributes_display): Don't print
transaction_safe in C++.
gcc/c/
* c-parser.c (c_lex_one_token): Handle @synchronized.
* c-decl.c (match_builtin_function_types): A declaration of a built-in
can change whether the function is transaction_safe.
gcc/cp/
* cp-tree.h (struct cp_declarator): Add tx_qualifier field.
(BCS_NORMAL, BCS_TRANSACTION): New enumerators.
* lex.c (init_reswords): Limit TM kewords to -fgnu-tm.
* parser.c (cp_lexer_get_preprocessor_token): Fix @synchronized.
(make_call_declarator): Take tx_qualifier.
(cp_parser_tx_qualifier_opt): New.
(cp_parser_lambda_declarator_opt): Use it.
(cp_parser_direct_declarator): Likewise.
(cp_parser_statement): Handle atomic_noexcept, atomic_cancel.
(cp_parser_compound_statement): Change in_try parameter to bcs_flags.
(cp_parser_std_attribute): Map optimize_for_synchronized to
transaction_callable.
(cp_parser_transaction): Take the token. Handle atomic_noexcept.
* lambda.c (maybe_add_lambda_conv_op): Handle transaction-safety.
* call.c (enum conversion_kind): Add ck_tsafe.
(standard_conversion): Handle transaction-safety conversion.
(convert_like_real, resolve_address_of_overloaded_function): Likewise.
(check_methods): Diagnose transaction_safe_dynamic on non-virtual
function.
(look_for_tm_attr_overrides): Don't inherit transaction_safe_dynamic.
* cvt.c (tx_safe_fn_type_p, tx_unsafe_fn_variant)
(can_convert_tx_safety): New.
* typeck.c (composite_pointer_type): Handle transaction-safety.
* name-lookup.h (enum scope_kind): Add sk_transaction.
* name-lookup.c (begin_scope): Handle it.
* semantics.c (begin_compound_stmt): Pass it.
* decl.c (check_previous_goto_1): Check it.
(struct named_label_entry): Add in_transaction_scope.
(poplevel_named_label_1): Set it.
(check_goto): Check it.
(duplicate_decls): A specialization can be transaction_safe
independently of its template.
(grokdeclarator): Handle tx-qualifier.
* rtti.c (ptr_initializer): Handle transaction-safe.
* search.c (check_final_overrider): Check transaction_safe_dynamic.
Don't check transaction_safe.
* mangle.c (write_function_type): Mangle transaction_safe here.
(write_CV_qualifiers_for_type): Not here.
(write_type): Preserve transaction_safe when stripping attributes.
* error.c (dump_type_suffix): Print transaction_safe.
libiberty/
* cp-demangle.c (d_cv_qualifiers): Dx means transaction_safe.
(cplus_demangle_type): Let d_cv_qualifiers handle it.
(d_dump, d_make_comp, has_return_type, d_encoding)
(d_count_templates_scopes, d_print_comp_inner)
(d_print_mod_list, d_print_mod, d_print_function_type)
(is_ctor_or_dtor): Handle DEMANGLE_COMPONENT_TRANSACTION_SAFE.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@228462 138bc75d-0d04-0410-961f-82ee72b054a4
2015-11-28 17:39:30 +01:00
|
|
|
/* A transaction-safe function type. */
|
|
|
|
DEMANGLE_COMPONENT_TRANSACTION_SAFE,
|
2011-09-24 00:21:36 +02:00
|
|
|
/* A cloned function. */
|
2016-11-08 00:09:29 +01:00
|
|
|
DEMANGLE_COMPONENT_CLONE,
|
|
|
|
DEMANGLE_COMPONENT_NOEXCEPT,
|
|
|
|
DEMANGLE_COMPONENT_THROW_SPEC
|
2004-01-12 22:24:38 +01:00
|
|
|
};
|
|
|
|
|
|
|
|
/* Types which are only used internally. */
|
|
|
|
|
|
|
|
struct demangle_operator_info;
|
|
|
|
struct demangle_builtin_type_info;
|
|
|
|
|
|
|
|
/* A node in the tree representation is an instance of a struct
|
|
|
|
demangle_component. Note that the field names of the struct are
|
|
|
|
not well protected against macros defined by the file including
|
|
|
|
this one. We can fix this if it ever becomes a problem. */
|
|
|
|
|
|
|
|
struct demangle_component
|
|
|
|
{
|
|
|
|
/* The type of this component. */
|
|
|
|
enum demangle_component_type type;
|
|
|
|
|
|
|
|
union
|
|
|
|
{
|
|
|
|
/* For DEMANGLE_COMPONENT_NAME. */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
/* A pointer to the name (which need not NULL terminated) and
|
|
|
|
its length. */
|
|
|
|
const char *s;
|
|
|
|
int len;
|
|
|
|
} s_name;
|
|
|
|
|
|
|
|
/* For DEMANGLE_COMPONENT_OPERATOR. */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
/* Operator. */
|
|
|
|
const struct demangle_operator_info *op;
|
|
|
|
} s_operator;
|
|
|
|
|
|
|
|
/* For DEMANGLE_COMPONENT_EXTENDED_OPERATOR. */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
/* Number of arguments. */
|
|
|
|
int args;
|
|
|
|
/* Name. */
|
|
|
|
struct demangle_component *name;
|
|
|
|
} s_extended_operator;
|
|
|
|
|
2008-12-11 00:28:19 +01:00
|
|
|
/* For DEMANGLE_COMPONENT_FIXED_TYPE. */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
/* The length, indicated by a C integer type name. */
|
|
|
|
struct demangle_component *length;
|
|
|
|
/* _Accum or _Fract? */
|
|
|
|
short accum;
|
|
|
|
/* Saturating or not? */
|
|
|
|
short sat;
|
|
|
|
} s_fixed;
|
|
|
|
|
2004-01-12 22:24:38 +01:00
|
|
|
/* For DEMANGLE_COMPONENT_CTOR. */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
/* Kind of constructor. */
|
|
|
|
enum gnu_v3_ctor_kinds kind;
|
|
|
|
/* Name. */
|
|
|
|
struct demangle_component *name;
|
|
|
|
} s_ctor;
|
|
|
|
|
|
|
|
/* For DEMANGLE_COMPONENT_DTOR. */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
/* Kind of destructor. */
|
|
|
|
enum gnu_v3_dtor_kinds kind;
|
|
|
|
/* Name. */
|
|
|
|
struct demangle_component *name;
|
|
|
|
} s_dtor;
|
|
|
|
|
|
|
|
/* For DEMANGLE_COMPONENT_BUILTIN_TYPE. */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
/* Builtin type. */
|
|
|
|
const struct demangle_builtin_type_info *type;
|
|
|
|
} s_builtin;
|
|
|
|
|
|
|
|
/* For DEMANGLE_COMPONENT_SUB_STD. */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
/* Standard substitution string. */
|
|
|
|
const char* string;
|
|
|
|
/* Length of string. */
|
|
|
|
int len;
|
|
|
|
} s_string;
|
|
|
|
|
2009-03-18 01:07:49 +01:00
|
|
|
/* For DEMANGLE_COMPONENT_*_PARAM. */
|
2004-01-12 22:24:38 +01:00
|
|
|
struct
|
|
|
|
{
|
2009-03-18 01:07:49 +01:00
|
|
|
/* Parameter index. */
|
2004-01-12 22:24:38 +01:00
|
|
|
long number;
|
|
|
|
} s_number;
|
|
|
|
|
2008-01-27 07:25:45 +01:00
|
|
|
/* For DEMANGLE_COMPONENT_CHARACTER. */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
int character;
|
|
|
|
} s_character;
|
|
|
|
|
2004-01-12 22:24:38 +01:00
|
|
|
/* For other types. */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
/* Left (or only) subtree. */
|
|
|
|
struct demangle_component *left;
|
|
|
|
/* Right subtree. */
|
|
|
|
struct demangle_component *right;
|
|
|
|
} s_binary;
|
|
|
|
|
2009-10-02 20:23:01 +02:00
|
|
|
struct
|
|
|
|
{
|
|
|
|
/* subtree, same place as d_left. */
|
|
|
|
struct demangle_component *sub;
|
|
|
|
/* integer. */
|
|
|
|
int num;
|
|
|
|
} s_unary_num;
|
|
|
|
|
2004-01-12 22:24:38 +01:00
|
|
|
} u;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* People building mangled trees are expected to allocate instances of
|
|
|
|
struct demangle_component themselves. They can then call one of
|
|
|
|
the following functions to fill them in. */
|
|
|
|
|
|
|
|
/* Fill in most component types with a left subtree and a right
|
|
|
|
subtree. Returns non-zero on success, zero on failure, such as an
|
|
|
|
unrecognized or inappropriate component type. */
|
|
|
|
|
|
|
|
extern int
|
2005-03-27 07:28:42 +02:00
|
|
|
cplus_demangle_fill_component (struct demangle_component *fill,
|
|
|
|
enum demangle_component_type,
|
|
|
|
struct demangle_component *left,
|
|
|
|
struct demangle_component *right);
|
2004-01-12 22:24:38 +01:00
|
|
|
|
|
|
|
/* Fill in a DEMANGLE_COMPONENT_NAME. Returns non-zero on success,
|
|
|
|
zero for bad arguments. */
|
|
|
|
|
|
|
|
extern int
|
2005-03-27 07:28:42 +02:00
|
|
|
cplus_demangle_fill_name (struct demangle_component *fill,
|
|
|
|
const char *, int);
|
2004-01-12 22:24:38 +01:00
|
|
|
|
|
|
|
/* Fill in a DEMANGLE_COMPONENT_BUILTIN_TYPE, using the name of the
|
|
|
|
builtin type (e.g., "int", etc.). Returns non-zero on success,
|
|
|
|
zero if the type is not recognized. */
|
|
|
|
|
|
|
|
extern int
|
2005-03-27 07:28:42 +02:00
|
|
|
cplus_demangle_fill_builtin_type (struct demangle_component *fill,
|
|
|
|
const char *type_name);
|
2004-01-12 22:24:38 +01:00
|
|
|
|
|
|
|
/* Fill in a DEMANGLE_COMPONENT_OPERATOR, using the name of the
|
|
|
|
operator and the number of arguments which it takes (the latter is
|
|
|
|
used to disambiguate operators which can be both binary and unary,
|
|
|
|
such as '-'). Returns non-zero on success, zero if the operator is
|
|
|
|
not recognized. */
|
|
|
|
|
|
|
|
extern int
|
2005-03-27 07:28:42 +02:00
|
|
|
cplus_demangle_fill_operator (struct demangle_component *fill,
|
|
|
|
const char *opname, int args);
|
2004-01-12 22:24:38 +01:00
|
|
|
|
|
|
|
/* Fill in a DEMANGLE_COMPONENT_EXTENDED_OPERATOR, providing the
|
|
|
|
number of arguments and the name. Returns non-zero on success,
|
|
|
|
zero for bad arguments. */
|
|
|
|
|
|
|
|
extern int
|
2005-03-27 07:28:42 +02:00
|
|
|
cplus_demangle_fill_extended_operator (struct demangle_component *fill,
|
|
|
|
int numargs,
|
|
|
|
struct demangle_component *nm);
|
2004-01-12 22:24:38 +01:00
|
|
|
|
|
|
|
/* Fill in a DEMANGLE_COMPONENT_CTOR. Returns non-zero on success,
|
|
|
|
zero for bad arguments. */
|
|
|
|
|
|
|
|
extern int
|
2005-03-27 07:28:42 +02:00
|
|
|
cplus_demangle_fill_ctor (struct demangle_component *fill,
|
|
|
|
enum gnu_v3_ctor_kinds kind,
|
|
|
|
struct demangle_component *name);
|
2004-01-12 22:24:38 +01:00
|
|
|
|
|
|
|
/* Fill in a DEMANGLE_COMPONENT_DTOR. Returns non-zero on success,
|
|
|
|
zero for bad arguments. */
|
|
|
|
|
|
|
|
extern int
|
2005-03-27 07:28:42 +02:00
|
|
|
cplus_demangle_fill_dtor (struct demangle_component *fill,
|
|
|
|
enum gnu_v3_dtor_kinds kind,
|
|
|
|
struct demangle_component *name);
|
2004-01-12 22:24:38 +01:00
|
|
|
|
|
|
|
/* This function translates a mangled name into a struct
|
|
|
|
demangle_component tree. The first argument is the mangled name.
|
|
|
|
The second argument is DMGL_* options. This returns a pointer to a
|
|
|
|
tree on success, or NULL on failure. On success, the third
|
|
|
|
argument is set to a block of memory allocated by malloc. This
|
|
|
|
block should be passed to free when the tree is no longer
|
|
|
|
needed. */
|
|
|
|
|
|
|
|
extern struct demangle_component *
|
2005-03-27 07:28:42 +02:00
|
|
|
cplus_demangle_v3_components (const char *mangled, int options, void **mem);
|
2004-01-12 22:24:38 +01:00
|
|
|
|
|
|
|
/* This function takes a struct demangle_component tree and returns
|
|
|
|
the corresponding demangled string. The first argument is DMGL_*
|
|
|
|
options. The second is the tree to demangle. The third is a guess
|
|
|
|
at the length of the demangled string, used to initially allocate
|
|
|
|
the return buffer. The fourth is a pointer to a size_t. On
|
|
|
|
success, this function returns a buffer allocated by malloc(), and
|
|
|
|
sets the size_t pointed to by the fourth argument to the size of
|
|
|
|
the allocated buffer (not the length of the returned string). On
|
|
|
|
failure, this function returns NULL, and sets the size_t pointed to
|
|
|
|
by the fourth argument to 0 for an invalid tree, or to 1 for a
|
|
|
|
memory allocation error. */
|
|
|
|
|
|
|
|
extern char *
|
2005-03-27 07:28:42 +02:00
|
|
|
cplus_demangle_print (int options,
|
|
|
|
const struct demangle_component *tree,
|
|
|
|
int estimated_length,
|
|
|
|
size_t *p_allocated_size);
|
2004-01-12 22:24:38 +01:00
|
|
|
|
2007-01-31 00:16:58 +01:00
|
|
|
/* This function takes a struct demangle_component tree and passes back
|
|
|
|
a demangled string in one or more calls to a callback function.
|
|
|
|
The first argument is DMGL_* options. The second is the tree to
|
|
|
|
demangle. The third is a pointer to a callback function; on each call
|
|
|
|
this receives an element of the demangled string, its length, and an
|
|
|
|
opaque value. The fourth is the opaque value passed to the callback.
|
|
|
|
The callback is called once or more to return the full demangled
|
|
|
|
string. The demangled element string is always nul-terminated, though
|
|
|
|
its length is also provided for convenience. In contrast to
|
|
|
|
cplus_demangle_print(), this function does not allocate heap memory
|
|
|
|
to grow output strings (except perhaps where alloca() is implemented
|
|
|
|
by malloc()), and so is normally safe for use where the heap has been
|
|
|
|
corrupted. On success, this function returns 1; on failure, 0. */
|
|
|
|
|
|
|
|
extern int
|
|
|
|
cplus_demangle_print_callback (int options,
|
|
|
|
const struct demangle_component *tree,
|
|
|
|
demangle_callbackref callback, void *opaque);
|
|
|
|
|
2003-07-06 23:44:55 +02:00
|
|
|
#ifdef __cplusplus
|
|
|
|
}
|
|
|
|
#endif /* __cplusplus */
|
|
|
|
|
1999-05-03 09:29:11 +02:00
|
|
|
#endif /* DEMANGLE_H */
|