dce76d2b39
* demangle.h (DEMANGLE_COMPONENT_HIDDEN_ALIAS): New. libiberty/ * cp-demangle.c (d_dump): Handle DEMANGLE_COMPONENT_HIDDEN_ALIAS. (d_make_comp, d_print_comp): Likewise. (d_special_name): Generate one. * testsuite/demangle-expected: Add a hidden alias test.
535 lines
20 KiB
C
535 lines
20 KiB
C
/* Defs for interface to demanglers.
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Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002,
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2003, 2004 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor,
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Boston, MA 02110-1301, USA. */
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#if !defined (DEMANGLE_H)
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#define DEMANGLE_H
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#include "libiberty.h"
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* Options passed to cplus_demangle (in 2nd parameter). */
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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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#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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#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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#define DMGL_GNU_V3 (1 << 14)
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#define DMGL_GNAT (1 << 15)
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/* If none of these are set, use 'current_demangling_style' as the default. */
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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)
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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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no_demangling = -1,
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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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edg_demangling = DMGL_EDG,
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gnu_v3_demangling = DMGL_GNU_V3,
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java_demangling = DMGL_JAVA,
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gnat_demangling = DMGL_GNAT
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} current_demangling_style;
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/* Define string names for the various demangling styles. */
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#define NO_DEMANGLING_STYLE_STRING "none"
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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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#define GNU_V3_DEMANGLING_STYLE_STRING "gnu-v3"
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#define JAVA_DEMANGLING_STYLE_STRING "java"
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#define GNAT_DEMANGLING_STYLE_STRING "gnat"
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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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#define GNU_V3_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU_V3)
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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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/* 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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extern const struct demangler_engine
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{
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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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} libiberty_demanglers[];
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extern char *
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cplus_demangle (const char *mangled, int options);
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extern int
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cplus_demangle_opname (const char *opname, char *result, int options);
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extern const char *
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cplus_mangle_opname (const char *opname, int options);
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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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set_cplus_marker_for_demangling (int ch);
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extern enum demangling_styles
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cplus_demangle_set_style (enum demangling_styles style);
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extern enum demangling_styles
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cplus_demangle_name_to_style (const char *name);
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/* V3 ABI demangling entry points, defined in cp-demangle.c. */
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extern char*
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cplus_demangle_v3 (const char* mangled, int options);
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extern char*
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java_demangle_v3 (const char* mangled);
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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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gnu_v3_complete_object_allocating_ctor
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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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extern enum gnu_v3_ctor_kinds
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is_gnu_v3_mangled_ctor (const char *name);
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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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gnu_v3_base_object_dtor
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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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extern enum gnu_v3_dtor_kinds
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is_gnu_v3_mangled_dtor (const char *name);
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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,
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/* A constructor. This holds a name and the kind of
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constructor. */
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DEMANGLE_COMPONENT_CTOR,
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/* A destructor. This holds a name and the kind of destructor. */
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DEMANGLE_COMPONENT_DTOR,
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/* A vtable. This has one subtree, the type for which this is a
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vtable. */
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DEMANGLE_COMPONENT_VTABLE,
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/* A VTT structure. This has one subtree, the type for which this
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is a VTT. */
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DEMANGLE_COMPONENT_VTT,
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/* A construction vtable. The left subtree is the type for which
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this is a vtable, and the right subtree is the derived type for
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which this vtable is built. */
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DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE,
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/* A typeinfo structure. This has one subtree, the type for which
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this is the tpeinfo structure. */
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DEMANGLE_COMPONENT_TYPEINFO,
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/* A typeinfo name. This has one subtree, the type for which this
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is the typeinfo name. */
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DEMANGLE_COMPONENT_TYPEINFO_NAME,
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/* A typeinfo function. This has one subtree, the type for which
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this is the tpyeinfo function. */
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DEMANGLE_COMPONENT_TYPEINFO_FN,
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/* A thunk. This has one subtree, the name for which this is a
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thunk. */
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DEMANGLE_COMPONENT_THUNK,
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/* A virtual thunk. This has one subtree, the name for which this
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is a virtual thunk. */
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DEMANGLE_COMPONENT_VIRTUAL_THUNK,
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/* A covariant thunk. This has one subtree, the name for which this
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is a covariant thunk. */
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DEMANGLE_COMPONENT_COVARIANT_THUNK,
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/* A Java class. This has one subtree, the type. */
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DEMANGLE_COMPONENT_JAVA_CLASS,
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/* A guard variable. This has one subtree, the name for which this
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is a guard variable. */
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DEMANGLE_COMPONENT_GUARD,
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/* A reference temporary. This has one subtree, the name for which
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this is a temporary. */
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DEMANGLE_COMPONENT_REFTEMP,
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/* A hidden alias. This has one subtree, the encoding for which it
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is providing alternative linkage. */
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DEMANGLE_COMPONENT_HIDDEN_ALIAS,
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/* A standard substitution. This holds the name of the
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substitution. */
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DEMANGLE_COMPONENT_SUB_STD,
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/* The restrict qualifier. The one subtree is the type which is
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being qualified. */
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DEMANGLE_COMPONENT_RESTRICT,
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/* The volatile qualifier. The one subtree is the type which is
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being qualified. */
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DEMANGLE_COMPONENT_VOLATILE,
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/* The const qualifier. The one subtree is the type which is being
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qualified. */
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DEMANGLE_COMPONENT_CONST,
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/* The restrict qualifier modifying a member function. The one
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subtree is the type which is being qualified. */
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DEMANGLE_COMPONENT_RESTRICT_THIS,
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/* The volatile qualifier modifying a member function. The one
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subtree is the type which is being qualified. */
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DEMANGLE_COMPONENT_VOLATILE_THIS,
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/* The const qualifier modifying a member function. The one subtree
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is the type which is being qualified. */
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DEMANGLE_COMPONENT_CONST_THIS,
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/* A vendor qualifier. The left subtree is the type which is being
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qualified, and the right subtree is the name of the
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qualifier. */
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DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL,
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/* A pointer. The one subtree is the type which is being pointed
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to. */
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DEMANGLE_COMPONENT_POINTER,
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/* A reference. The one subtree is the type which is being
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referenced. */
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DEMANGLE_COMPONENT_REFERENCE,
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/* A complex type. The one subtree is the base type. */
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DEMANGLE_COMPONENT_COMPLEX,
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/* An imaginary type. The one subtree is the base type. */
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DEMANGLE_COMPONENT_IMAGINARY,
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/* A builtin type. This holds the builtin type information. */
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DEMANGLE_COMPONENT_BUILTIN_TYPE,
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/* A vendor's builtin type. This holds the name of the type. */
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DEMANGLE_COMPONENT_VENDOR_TYPE,
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/* A function type. The left subtree is the return type. The right
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subtree is a list of ARGLIST nodes. Either or both may be
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NULL. */
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DEMANGLE_COMPONENT_FUNCTION_TYPE,
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/* An array type. The left subtree is the dimension, which may be
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NULL, or a string (represented as DEMANGLE_COMPONENT_NAME), or an
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expression. The right subtree is the element type. */
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DEMANGLE_COMPONENT_ARRAY_TYPE,
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/* A pointer to member type. The left subtree is the class type,
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and the right subtree is the member type. CV-qualifiers appear
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on the latter. */
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DEMANGLE_COMPONENT_PTRMEM_TYPE,
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/* An argument list. The left subtree is the current argument, and
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the right subtree is either NULL or another ARGLIST node. */
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DEMANGLE_COMPONENT_ARGLIST,
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/* A template argument list. The left subtree is the current
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template argument, and the right subtree is either NULL or
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another TEMPLATE_ARGLIST node. */
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DEMANGLE_COMPONENT_TEMPLATE_ARGLIST,
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/* An operator. This holds information about a standard
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operator. */
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DEMANGLE_COMPONENT_OPERATOR,
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/* An extended operator. This holds the number of arguments, and
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the name of the extended operator. */
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DEMANGLE_COMPONENT_EXTENDED_OPERATOR,
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/* A typecast, represented as a unary operator. The one subtree is
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the type to which the argument should be cast. */
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DEMANGLE_COMPONENT_CAST,
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/* A unary expression. The left subtree is the operator, and the
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right subtree is the single argument. */
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DEMANGLE_COMPONENT_UNARY,
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/* A binary expression. The left subtree is the operator, and the
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right subtree is a BINARY_ARGS. */
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DEMANGLE_COMPONENT_BINARY,
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/* Arguments to a binary expression. The left subtree is the first
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argument, and the right subtree is the second argument. */
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DEMANGLE_COMPONENT_BINARY_ARGS,
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/* A trinary expression. The left subtree is the operator, and the
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right subtree is a TRINARY_ARG1. */
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DEMANGLE_COMPONENT_TRINARY,
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/* Arguments to a trinary expression. The left subtree is the first
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argument, and the right subtree is a TRINARY_ARG2. */
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DEMANGLE_COMPONENT_TRINARY_ARG1,
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/* More arguments to a trinary expression. The left subtree is the
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second argument, and the right subtree is the third argument. */
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DEMANGLE_COMPONENT_TRINARY_ARG2,
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/* A literal. The left subtree is the type, and the right subtree
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is the value, represented as a DEMANGLE_COMPONENT_NAME. */
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DEMANGLE_COMPONENT_LITERAL,
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/* A negative literal. Like LITERAL, but the value is negated.
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This is a minor hack: the NAME used for LITERAL points directly
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to the mangled string, but since negative numbers are mangled
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using 'n' instead of '-', we want a way to indicate a negative
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number which involves neither modifying the mangled string nor
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allocating a new copy of the literal in memory. */
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DEMANGLE_COMPONENT_LITERAL_NEG
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};
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/* Types which are only used internally. */
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struct demangle_operator_info;
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struct demangle_builtin_type_info;
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/* A node in the tree representation is an instance of a struct
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demangle_component. Note that the field names of the struct are
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not well protected against macros defined by the file including
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this one. We can fix this if it ever becomes a problem. */
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struct demangle_component
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{
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/* The type of this component. */
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enum demangle_component_type type;
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union
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{
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/* For DEMANGLE_COMPONENT_NAME. */
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struct
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{
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/* A pointer to the name (which need not NULL terminated) and
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its length. */
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const char *s;
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int len;
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} s_name;
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/* For DEMANGLE_COMPONENT_OPERATOR. */
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struct
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{
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/* Operator. */
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const struct demangle_operator_info *op;
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} s_operator;
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/* For DEMANGLE_COMPONENT_EXTENDED_OPERATOR. */
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struct
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{
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/* Number of arguments. */
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int args;
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/* Name. */
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struct demangle_component *name;
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} s_extended_operator;
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/* For DEMANGLE_COMPONENT_CTOR. */
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struct
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{
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/* Kind of constructor. */
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enum gnu_v3_ctor_kinds kind;
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/* Name. */
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struct demangle_component *name;
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} s_ctor;
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/* For DEMANGLE_COMPONENT_DTOR. */
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struct
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{
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/* Kind of destructor. */
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enum gnu_v3_dtor_kinds kind;
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/* Name. */
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struct demangle_component *name;
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} s_dtor;
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/* For DEMANGLE_COMPONENT_BUILTIN_TYPE. */
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struct
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{
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/* Builtin type. */
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const struct demangle_builtin_type_info *type;
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} s_builtin;
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/* For DEMANGLE_COMPONENT_SUB_STD. */
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struct
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{
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/* Standard substitution string. */
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const char* string;
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/* Length of string. */
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int len;
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} s_string;
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/* For DEMANGLE_COMPONENT_TEMPLATE_PARAM. */
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struct
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{
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/* Template parameter index. */
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long number;
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} s_number;
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/* For other types. */
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struct
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{
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/* Left (or only) subtree. */
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struct demangle_component *left;
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/* Right subtree. */
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struct demangle_component *right;
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} s_binary;
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} u;
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};
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/* People building mangled trees are expected to allocate instances of
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struct demangle_component themselves. They can then call one of
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the following functions to fill them in. */
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/* Fill in most component types with a left subtree and a right
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subtree. Returns non-zero on success, zero on failure, such as an
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unrecognized or inappropriate component type. */
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extern int
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cplus_demangle_fill_component (struct demangle_component *fill,
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enum demangle_component_type,
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struct demangle_component *left,
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struct demangle_component *right);
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/* Fill in a DEMANGLE_COMPONENT_NAME. Returns non-zero on success,
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zero for bad arguments. */
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extern int
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cplus_demangle_fill_name (struct demangle_component *fill,
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const char *, int);
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/* Fill in a DEMANGLE_COMPONENT_BUILTIN_TYPE, using the name of the
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builtin type (e.g., "int", etc.). Returns non-zero on success,
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zero if the type is not recognized. */
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extern int
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cplus_demangle_fill_builtin_type (struct demangle_component *fill,
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const char *type_name);
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/* Fill in a DEMANGLE_COMPONENT_OPERATOR, using the name of the
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operator and the number of arguments which it takes (the latter is
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used to disambiguate operators which can be both binary and unary,
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such as '-'). Returns non-zero on success, zero if the operator is
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not recognized. */
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extern int
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cplus_demangle_fill_operator (struct demangle_component *fill,
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const char *opname, int args);
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/* Fill in a DEMANGLE_COMPONENT_EXTENDED_OPERATOR, providing the
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number of arguments and the name. Returns non-zero on success,
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zero for bad arguments. */
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extern int
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cplus_demangle_fill_extended_operator (struct demangle_component *fill,
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int numargs,
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struct demangle_component *nm);
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/* Fill in a DEMANGLE_COMPONENT_CTOR. Returns non-zero on success,
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zero for bad arguments. */
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extern int
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cplus_demangle_fill_ctor (struct demangle_component *fill,
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enum gnu_v3_ctor_kinds kind,
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struct demangle_component *name);
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/* Fill in a DEMANGLE_COMPONENT_DTOR. Returns non-zero on success,
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zero for bad arguments. */
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extern int
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cplus_demangle_fill_dtor (struct demangle_component *fill,
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enum gnu_v3_dtor_kinds kind,
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struct demangle_component *name);
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/* This function translates a mangled name into a struct
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demangle_component tree. The first argument is the mangled name.
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The second argument is DMGL_* options. This returns a pointer to a
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tree on success, or NULL on failure. On success, the third
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argument is set to a block of memory allocated by malloc. This
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block should be passed to free when the tree is no longer
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needed. */
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extern struct demangle_component *
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cplus_demangle_v3_components (const char *mangled, int options, void **mem);
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/* This function takes a struct demangle_component tree and returns
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the corresponding demangled string. The first argument is DMGL_*
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options. The second is the tree to demangle. The third is a guess
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at the length of the demangled string, used to initially allocate
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the return buffer. The fourth is a pointer to a size_t. On
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success, this function returns a buffer allocated by malloc(), and
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sets the size_t pointed to by the fourth argument to the size of
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the allocated buffer (not the length of the returned string). On
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failure, this function returns NULL, and sets the size_t pointed to
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by the fourth argument to 0 for an invalid tree, or to 1 for a
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memory allocation error. */
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extern char *
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cplus_demangle_print (int options,
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const struct demangle_component *tree,
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int estimated_length,
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size_t *p_allocated_size);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* DEMANGLE_H */
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