X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=include%2Fdemangle.h;h=a7f11f59205d4f51ee22931d19afd4ffcf3d8ff0;hb=e3b1fa32c2814772e8c8c4d2788e1d342c7493d0;hp=9cb1d966bc428db6069fe4b7c5d8cf8d8d87b6a7;hpb=4f1d9bd8e27e97238520fc7cfa41a653ac6a2111;p=deliverable%2Fbinutils-gdb.git diff --git a/include/demangle.h b/include/demangle.h index 9cb1d966bc..a7f11f5920 100644 --- a/include/demangle.h +++ b/include/demangle.h @@ -1,27 +1,39 @@ /* Defs for interface to demanglers. - Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000 - Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. + Copyright (C) 1992-2020 Free Software Foundation, Inc. - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License + as published by the Free Software Foundation; either version 2, or + (at your option) any later version. - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ + In addition to the permissions in the GNU Library General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Library Public License restrictions do apply in other + respects; for example, they cover modification of the file, and + distribution when not linked into a combined executable.) + + This program is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ #if !defined (DEMANGLE_H) #define DEMANGLE_H -#include +#include "libiberty.h" + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ /* Options passed to cplus_demangle (in 2nd parameter). */ @@ -29,21 +41,37 @@ #define DMGL_PARAMS (1 << 0) /* Include function args */ #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ #define DMGL_JAVA (1 << 2) /* Demangle as Java rather than C++. */ +#define DMGL_VERBOSE (1 << 3) /* Include implementation details. */ +#define DMGL_TYPES (1 << 4) /* Also try to demangle type encodings. */ +#define DMGL_RET_POSTFIX (1 << 5) /* Print function return types (when + present) after function signature. + It applies only to the toplevel + function type. */ +#define DMGL_RET_DROP (1 << 6) /* Suppress printing function return + types, even if present. It applies + only to the toplevel function type. + */ #define DMGL_AUTO (1 << 8) -#define DMGL_GNU (1 << 9) -#define DMGL_LUCID (1 << 10) -#define DMGL_ARM (1 << 11) -#define DMGL_HP (1 << 12) /* For the HP aCC compiler; - same as ARM except for - template arguments, etc. */ -#define DMGL_EDG (1 << 13) #define DMGL_GNU_V3 (1 << 14) #define DMGL_GNAT (1 << 15) +#define DMGL_DLANG (1 << 16) +#define DMGL_RUST (1 << 17) /* Rust wraps GNU_V3 style mangling. */ /* If none of these are set, use 'current_demangling_style' as the default. */ -#define DMGL_STYLE_MASK (DMGL_AUTO|DMGL_GNU|DMGL_LUCID|DMGL_ARM|DMGL_HP|DMGL_EDG|DMGL_GNU_V3|DMGL_JAVA|DMGL_GNAT) +#define DMGL_STYLE_MASK (DMGL_AUTO|DMGL_GNU_V3|DMGL_JAVA|DMGL_GNAT|DMGL_DLANG|DMGL_RUST) +/* Disable a limit on the depth of recursion in mangled strings. + Note if this limit is disabled then stack exhaustion is possible when + demangling pathologically complicated strings. Bug reports about stack + exhaustion when the option is enabled will be rejected. */ +#define DMGL_NO_RECURSE_LIMIT (1 << 18) + +/* If DMGL_NO_RECURSE_LIMIT is not enabled, then this is the value used as + the maximum depth of recursion allowed. It should be enough for any + real-world mangled name. */ +#define DEMANGLE_RECURSION_LIMIT 2048 + /* Enumeration of possible demangling styles. Lucid and ARM styles are still kept logically distinct, even though @@ -54,78 +82,613 @@ extern enum demangling_styles { + no_demangling = -1, unknown_demangling = 0, auto_demangling = DMGL_AUTO, - gnu_demangling = DMGL_GNU, - lucid_demangling = DMGL_LUCID, - arm_demangling = DMGL_ARM, - hp_demangling = DMGL_HP, - edg_demangling = DMGL_EDG, gnu_v3_demangling = DMGL_GNU_V3, java_demangling = DMGL_JAVA, - gnat_demangling = DMGL_GNAT + gnat_demangling = DMGL_GNAT, + dlang_demangling = DMGL_DLANG, + rust_demangling = DMGL_RUST } current_demangling_style; /* Define string names for the various demangling styles. */ +#define NO_DEMANGLING_STYLE_STRING "none" #define AUTO_DEMANGLING_STYLE_STRING "auto" -#define GNU_DEMANGLING_STYLE_STRING "gnu" -#define LUCID_DEMANGLING_STYLE_STRING "lucid" -#define ARM_DEMANGLING_STYLE_STRING "arm" -#define HP_DEMANGLING_STYLE_STRING "hp" -#define EDG_DEMANGLING_STYLE_STRING "edg" #define GNU_V3_DEMANGLING_STYLE_STRING "gnu-v3" #define JAVA_DEMANGLING_STYLE_STRING "java" #define GNAT_DEMANGLING_STYLE_STRING "gnat" +#define DLANG_DEMANGLING_STYLE_STRING "dlang" +#define RUST_DEMANGLING_STYLE_STRING "rust" /* Some macros to test what demangling style is active. */ #define CURRENT_DEMANGLING_STYLE current_demangling_style #define AUTO_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_AUTO) -#define GNU_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU) -#define LUCID_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_LUCID) -#define ARM_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_ARM) -#define HP_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_HP) -#define EDG_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_EDG) #define GNU_V3_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU_V3) #define JAVA_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_JAVA) #define GNAT_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNAT) +#define DLANG_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_DLANG) +#define RUST_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_RUST) /* Provide information about the available demangle styles. This code is pulled from gdb into libiberty because it is useful to binutils also. */ -extern struct demangler_engine +extern const struct demangler_engine { - const char *demangling_style_name; - enum demangling_styles demangling_style; - const char *demangling_style_doc; + const char *const demangling_style_name; + const enum demangling_styles demangling_style; + const char *const demangling_style_doc; } libiberty_demanglers[]; extern char * -cplus_demangle PARAMS ((const char *mangled, int options)); - -extern int -cplus_demangle_opname PARAMS ((const char *opname, char *result, int options)); - -extern const char * -cplus_mangle_opname PARAMS ((const char *opname, int options)); +cplus_demangle (const char *mangled, int options); /* Note: This sets global state. FIXME if you care about multi-threading. */ -extern void -set_cplus_marker_for_demangling PARAMS ((int ch)); +extern enum demangling_styles +cplus_demangle_set_style (enum demangling_styles style); + +extern enum demangling_styles +cplus_demangle_name_to_style (const char *name); -extern enum demangling_styles -cplus_demangle_set_style PARAMS ((enum demangling_styles style)); +/* Callback typedef for allocation-less demangler interfaces. */ +typedef void (*demangle_callbackref) (const char *, size_t, void *); -extern enum demangling_styles -cplus_demangle_name_to_style PARAMS ((const char *name)); +/* V3 ABI demangling entry points, defined in cp-demangle.c. Callback + variants return non-zero on success, zero on error. char* variants + return a string allocated by malloc on success, NULL on error. */ +extern int +cplus_demangle_v3_callback (const char *mangled, int options, + demangle_callbackref callback, void *opaque); -/* V3 ABI demangling entry points, defined in cp-demangle.c. */ extern char* -cplus_demangle_v3 PARAMS ((const char* mangled)); +cplus_demangle_v3 (const char *mangled, int options); + +extern int +java_demangle_v3_callback (const char *mangled, + demangle_callbackref callback, void *opaque); extern char* -java_demangle_v3 PARAMS ((const char* mangled)); +java_demangle_v3 (const char *mangled); + +char * +ada_demangle (const char *mangled, int options); + +extern char * +dlang_demangle (const char *mangled, int options); + +extern int +rust_demangle_callback (const char *mangled, int options, + demangle_callbackref callback, void *opaque); + + +extern char * +rust_demangle (const char *mangled, int options); + +enum gnu_v3_ctor_kinds { + gnu_v3_complete_object_ctor = 1, + gnu_v3_base_object_ctor, + gnu_v3_complete_object_allocating_ctor, + /* These are not part of the V3 ABI. Unified constructors are generated + as a speed-for-space optimization when the -fdeclone-ctor-dtor option + is used, and are always internal symbols. */ + gnu_v3_unified_ctor, + gnu_v3_object_ctor_group +}; + +/* Return non-zero iff NAME is the mangled form of a constructor name + in the G++ V3 ABI demangling style. Specifically, return an `enum + gnu_v3_ctor_kinds' value indicating what kind of constructor + it is. */ +extern enum gnu_v3_ctor_kinds + is_gnu_v3_mangled_ctor (const char *name); + + +enum gnu_v3_dtor_kinds { + gnu_v3_deleting_dtor = 1, + gnu_v3_complete_object_dtor, + gnu_v3_base_object_dtor, + /* These are not part of the V3 ABI. Unified destructors are generated + as a speed-for-space optimization when the -fdeclone-ctor-dtor option + is used, and are always internal symbols. */ + gnu_v3_unified_dtor, + gnu_v3_object_dtor_group +}; + +/* Return non-zero iff NAME is the mangled form of a destructor name + in the G++ V3 ABI demangling style. Specifically, return an `enum + gnu_v3_dtor_kinds' value, indicating what kind of destructor + it is. */ +extern enum gnu_v3_dtor_kinds + is_gnu_v3_mangled_dtor (const char *name); + +/* The V3 demangler works in two passes. The first pass builds a tree + representation of the mangled name, and the second pass turns the + tree representation into a demangled string. Here we define an + interface to permit a caller to build their own tree + representation, which they can pass to the demangler to get a + demangled string. This can be used to canonicalize user input into + something which the demangler might output. It could also be used + by other demanglers in the future. */ + +/* These are the component types which may be found in the tree. Many + component types have one or two subtrees, referred to as left and + right (a component type with only one subtree puts it in the left + subtree). */ + +enum demangle_component_type +{ + /* A name, with a length and a pointer to a string. */ + DEMANGLE_COMPONENT_NAME, + /* A qualified name. The left subtree is a class or namespace or + some such thing, and the right subtree is a name qualified by + that class. */ + DEMANGLE_COMPONENT_QUAL_NAME, + /* A local name. The left subtree describes a function, and the + right subtree is a name which is local to that function. */ + DEMANGLE_COMPONENT_LOCAL_NAME, + /* A typed name. The left subtree is a name, and the right subtree + describes that name as a function. */ + DEMANGLE_COMPONENT_TYPED_NAME, + /* A template. The left subtree is a template name, and the right + subtree is a template argument list. */ + DEMANGLE_COMPONENT_TEMPLATE, + /* A template parameter. This holds a number, which is the template + parameter index. */ + DEMANGLE_COMPONENT_TEMPLATE_PARAM, + /* A function parameter. This holds a number, which is the index. */ + DEMANGLE_COMPONENT_FUNCTION_PARAM, + /* 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, + /* The init and wrapper functions for C++11 thread_local variables. */ + DEMANGLE_COMPONENT_TLS_INIT, + DEMANGLE_COMPONENT_TLS_WRAPPER, + /* A reference temporary. This has one subtree, the name for which + this is a temporary. */ + DEMANGLE_COMPONENT_REFTEMP, + /* A hidden alias. This has one subtree, the encoding for which it + is providing alternative linkage. */ + DEMANGLE_COMPONENT_HIDDEN_ALIAS, + /* 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, + /* 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, + /* 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, + /* C++0x: An rvalue reference. The one subtree is the type which is + being referenced. */ + DEMANGLE_COMPONENT_RVALUE_REFERENCE, + /* 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, + /* A fixed-point type. */ + DEMANGLE_COMPONENT_FIXED_TYPE, + /* A vector type. The left subtree is the number of elements, + the right subtree is the element type. */ + DEMANGLE_COMPONENT_VECTOR_TYPE, + /* 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, + /* A template parameter object (C++20). The left subtree is the + corresponding template argument. */ + DEMANGLE_COMPONENT_TPARM_OBJ, + /* 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, + /* 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, + /* 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, + /* A nullary expression. The left subtree is the operator. */ + DEMANGLE_COMPONENT_NULLARY, + /* 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. */ + 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. */ + DEMANGLE_COMPONENT_CHARACTER, + /* A number. */ + DEMANGLE_COMPONENT_NUMBER, + /* A decltype type. */ + DEMANGLE_COMPONENT_DECLTYPE, + /* Global constructors keyed to name. */ + DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS, + /* Global destructors keyed to name. */ + DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS, + /* A lambda closure type. */ + DEMANGLE_COMPONENT_LAMBDA, + /* A default argument scope. */ + DEMANGLE_COMPONENT_DEFAULT_ARG, + /* An unnamed type. */ + DEMANGLE_COMPONENT_UNNAMED_TYPE, + /* 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, + /* A pack expansion. */ + DEMANGLE_COMPONENT_PACK_EXPANSION, + /* A name with an ABI tag. */ + DEMANGLE_COMPONENT_TAGGED_NAME, + /* A transaction-safe function type. */ + DEMANGLE_COMPONENT_TRANSACTION_SAFE, + /* A cloned function. */ + DEMANGLE_COMPONENT_CLONE, + DEMANGLE_COMPONENT_NOEXCEPT, + DEMANGLE_COMPONENT_THROW_SPEC +}; + +/* 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; + + /* Guard against recursive component printing. + Initialize to zero. Private to d_print_comp. + All other fields are final after initialization. */ + int d_printing; + int d_counting; + + 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; + + /* 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; + + /* 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; + + /* For DEMANGLE_COMPONENT_*_PARAM. */ + struct + { + /* Parameter index. */ + long number; + } s_number; + + /* For DEMANGLE_COMPONENT_CHARACTER. */ + struct + { + int character; + } s_character; + + /* For other types. */ + struct + { + /* Left (or only) subtree. */ + struct demangle_component *left; + /* Right subtree. */ + struct demangle_component *right; + } s_binary; + + struct + { + /* subtree, same place as d_left. */ + struct demangle_component *sub; + /* integer. */ + int num; + } s_unary_num; + + } 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 +cplus_demangle_fill_component (struct demangle_component *fill, + enum demangle_component_type, + struct demangle_component *left, + struct demangle_component *right); + +/* Fill in a DEMANGLE_COMPONENT_NAME. Returns non-zero on success, + zero for bad arguments. */ + +extern int +cplus_demangle_fill_name (struct demangle_component *fill, + const char *, int); + +/* 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 +cplus_demangle_fill_builtin_type (struct demangle_component *fill, + const char *type_name); + +/* 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 +cplus_demangle_fill_operator (struct demangle_component *fill, + const char *opname, int args); + +/* 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 +cplus_demangle_fill_extended_operator (struct demangle_component *fill, + int numargs, + struct demangle_component *nm); + +/* Fill in a DEMANGLE_COMPONENT_CTOR. Returns non-zero on success, + zero for bad arguments. */ + +extern int +cplus_demangle_fill_ctor (struct demangle_component *fill, + enum gnu_v3_ctor_kinds kind, + struct demangle_component *name); + +/* Fill in a DEMANGLE_COMPONENT_DTOR. Returns non-zero on success, + zero for bad arguments. */ + +extern int +cplus_demangle_fill_dtor (struct demangle_component *fill, + enum gnu_v3_dtor_kinds kind, + struct demangle_component *name); + +/* 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 * +cplus_demangle_v3_components (const char *mangled, int options, void **mem); + +/* 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 * +cplus_demangle_print (int options, + struct demangle_component *tree, + int estimated_length, + size_t *p_allocated_size); + +/* 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, + struct demangle_component *tree, + demangle_callbackref callback, void *opaque); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ #endif /* DEMANGLE_H */