X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=libiberty%2Fcp-demangle.c;h=0f1166be48ccee90adce883f7f143415fc1dcb37;hb=693b08225e50adb104ff6da9a4fdb918bb9de908;hp=e5b396c7ef2007154d0a1a76263997b7bcaeb562;hpb=d24fd8a0b0c833415220ea911f6b5688b8bfecc8;p=pf3gnuchains%2Fgcc-fork.git diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c index e5b396c7ef2..0f1166be48c 100644 --- a/libiberty/cp-demangle.c +++ b/libiberty/cp-demangle.c @@ -1,5 +1,6 @@ /* Demangler for g++ V3 ABI. - Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc. + Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 + Free Software Foundation, Inc. Written by Ian Lance Taylor . This file is part of the libiberty library, which is part of GCC. @@ -25,7 +26,7 @@ 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. + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ /* This code implements a demangler for the g++ V3 ABI. The ABI is @@ -42,6 +43,10 @@ This file will normally define the following functions, q.v.: char *cplus_demangle_v3(const char *mangled, int options) char *java_demangle_v3(const char *mangled) + int cplus_demangle_v3_callback(const char *mangled, int options, + demangle_callbackref callback) + int java_demangle_v3_callback(const char *mangled, + demangle_callbackref callback) enum gnu_v3_ctor_kinds is_gnu_v3_mangled_ctor (const char *name) enum gnu_v3_dtor_kinds is_gnu_v3_mangled_dtor (const char *name) @@ -50,12 +55,14 @@ defined in demangle.h: enum demangle_component_type struct demangle_component + demangle_callbackref and these functions defined in this file: cplus_demangle_fill_name cplus_demangle_fill_extended_operator cplus_demangle_fill_ctor cplus_demangle_fill_dtor cplus_demangle_print + cplus_demangle_print_callback and other functions defined in the file cp-demint.c. This file also defines some other functions and variables which are @@ -64,14 +71,20 @@ Preprocessor macros you can define while compiling this file: IN_LIBGCC2 - If defined, this file defines the following function, q.v.: + If defined, this file defines the following functions, q.v.: char *__cxa_demangle (const char *mangled, char *buf, size_t *len, int *status) - instead of cplus_demangle_v3() and java_demangle_v3(). + int __gcclibcxx_demangle_callback (const char *, + void (*) + (const char *, size_t, void *), + void *) + instead of cplus_demangle_v3[_callback]() and + java_demangle_v3[_callback](). IN_GLIBCPP_V3 - If defined, this file defines only __cxa_demangle(), and no other - publically visible functions or variables. + If defined, this file defines only __cxa_demangle() and + __gcclibcxx_demangle_callback(), and no other publically visible + functions or variables. STANDALONE_DEMANGLER If defined, this file defines a main() function which demangles @@ -82,6 +95,10 @@ stdout about the mangled string. This is not generally useful. */ +#if defined (_AIX) && !defined (__GNUC__) + #pragma alloca +#endif + #ifdef HAVE_CONFIG_H #include "config.h" #endif @@ -95,6 +112,18 @@ #include #endif +#ifdef HAVE_ALLOCA_H +# include +#else +# ifndef alloca +# ifdef __GNUC__ +# define alloca __builtin_alloca +# else +extern char *alloca (); +# endif /* __GNUC__ */ +# endif /* alloca */ +#endif /* HAVE_ALLOCA_H */ + #include "ansidecl.h" #include "libiberty.h" #include "demangle.h" @@ -135,6 +164,10 @@ static struct demangle_component *d_type (struct d_info *); #define cplus_demangle_print d_print static char *d_print (int, const struct demangle_component *, int, size_t *); +#define cplus_demangle_print_callback d_print_callback +static int d_print_callback (int, const struct demangle_component *, + demangle_callbackref, void *); + #define cplus_demangle_init_info d_init_info static void d_init_info (const char *, int, size_t, struct d_info *); @@ -162,8 +195,8 @@ static void d_init_info (const char *, int, size_t, struct d_info *); V3 demangler code. As of this writing this file has the following undefined references - when compiled with -DIN_GLIBCPP_V3: malloc, realloc, free, memcpy, - strcpy, strcat, strlen. */ + when compiled with -DIN_GLIBCPP_V3: realloc, free, memcpy, strcpy, + strcat, strlen. */ #define IS_DIGIT(c) ((c) >= '0' && (c) <= '9') #define IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z') @@ -210,7 +243,7 @@ struct d_print_template /* Next template on the list. */ struct d_print_template *next; /* This template. */ - const struct demangle_component *template; + const struct demangle_component *template_decl; }; /* A list of type modifiers. This is used while printing. */ @@ -228,58 +261,49 @@ struct d_print_mod struct d_print_template *templates; }; -/* We use this structure to hold information during printing. */ +/* We use these structures to hold information during printing. */ -struct d_print_info +struct d_growable_string { - /* The options passed to the demangler. */ - int options; /* Buffer holding the result. */ char *buf; /* Current length of data in buffer. */ size_t len; /* Allocated size of buffer. */ size_t alc; + /* Set to 1 if we had a memory allocation failure. */ + int allocation_failure; +}; + +enum { D_PRINT_BUFFER_LENGTH = 256 }; +struct d_print_info +{ + /* Fixed-length allocated buffer for demangled data, flushed to the + callback with a NUL termination once full. */ + char buf[D_PRINT_BUFFER_LENGTH]; + /* Current length of data in buffer. */ + size_t len; + /* The last character printed, saved individually so that it survives + any buffer flush. */ + char last_char; + /* Callback function to handle demangled buffer flush. */ + demangle_callbackref callback; + /* Opaque callback argument. */ + void *opaque; /* The current list of templates, if any. */ struct d_print_template *templates; /* The current list of modifiers (e.g., pointer, reference, etc.), if any. */ struct d_print_mod *modifiers; - /* Set to 1 if we had a memory allocation failure. */ - int allocation_failure; + /* Set to 1 if we saw a demangling error. */ + int demangle_failure; + /* The current index into any template argument packs we are using + for printing. */ + int pack_index; + /* Number of d_print_flush calls so far. */ + unsigned long int flush_count; }; -#define d_print_saw_error(dpi) ((dpi)->buf == NULL) - -#define d_append_char(dpi, c) \ - do \ - { \ - if ((dpi)->buf != NULL && (dpi)->len < (dpi)->alc) \ - (dpi)->buf[(dpi)->len++] = (c); \ - else \ - d_print_append_char ((dpi), (c)); \ - } \ - while (0) - -#define d_append_buffer(dpi, s, l) \ - do \ - { \ - if ((dpi)->buf != NULL && (dpi)->len + (l) <= (dpi)->alc) \ - { \ - memcpy ((dpi)->buf + (dpi)->len, (s), (l)); \ - (dpi)->len += l; \ - } \ - else \ - d_print_append_buffer ((dpi), (s), (l)); \ - } \ - while (0) - -#define d_append_string_constant(dpi, s) \ - d_append_buffer (dpi, (s), sizeof (s) - 1) - -#define d_last_char(dpi) \ - ((dpi)->buf == NULL || (dpi)->len == 0 ? '\0' : (dpi)->buf[(dpi)->len - 1]) - #ifdef CP_DEMANGLE_DEBUG static void d_dump (struct demangle_component *, int); #endif @@ -296,6 +320,9 @@ static struct demangle_component * d_make_name (struct d_info *, const char *, int); static struct demangle_component * +d_make_demangle_mangled_name (struct d_info *, const char *); + +static struct demangle_component * d_make_builtin_type (struct d_info *, const struct demangle_builtin_type_info *); @@ -365,6 +392,8 @@ d_class_enum_type (struct d_info *); static struct demangle_component *d_array_type (struct d_info *); +static struct demangle_component *d_vector_type (struct d_info *); + static struct demangle_component * d_pointer_to_member_type (struct d_info *); @@ -384,48 +413,77 @@ static struct demangle_component *d_local_name (struct d_info *); static int d_discriminator (struct d_info *); +static struct demangle_component *d_lambda (struct d_info *); + +static struct demangle_component *d_unnamed_type (struct d_info *); + +static struct demangle_component * +d_clone_suffix (struct d_info *, struct demangle_component *); + static int d_add_substitution (struct d_info *, struct demangle_component *); static struct demangle_component *d_substitution (struct d_info *, int); -static void d_print_resize (struct d_print_info *, size_t); +static void d_growable_string_init (struct d_growable_string *, size_t); -static void d_print_append_char (struct d_print_info *, int); +static inline void +d_growable_string_resize (struct d_growable_string *, size_t); +static inline void +d_growable_string_append_buffer (struct d_growable_string *, + const char *, size_t); static void -d_print_append_buffer (struct d_print_info *, const char *, size_t); +d_growable_string_callback_adapter (const char *, size_t, void *); + +static void +d_print_init (struct d_print_info *, demangle_callbackref, void *); + +static inline void d_print_error (struct d_print_info *); + +static inline int d_print_saw_error (struct d_print_info *); + +static inline void d_print_flush (struct d_print_info *); + +static inline void d_append_char (struct d_print_info *, char); + +static inline void d_append_buffer (struct d_print_info *, + const char *, size_t); + +static inline void d_append_string (struct d_print_info *, const char *); -static void d_print_error (struct d_print_info *); +static inline char d_last_char (struct d_print_info *); static void -d_print_comp (struct d_print_info *, const struct demangle_component *); +d_print_comp (struct d_print_info *, int, const struct demangle_component *); static void d_print_java_identifier (struct d_print_info *, const char *, int); static void -d_print_mod_list (struct d_print_info *, struct d_print_mod *, int); +d_print_mod_list (struct d_print_info *, int, struct d_print_mod *, int); static void -d_print_mod (struct d_print_info *, const struct demangle_component *); +d_print_mod (struct d_print_info *, int, const struct demangle_component *); static void -d_print_function_type (struct d_print_info *, +d_print_function_type (struct d_print_info *, int, const struct demangle_component *, struct d_print_mod *); static void -d_print_array_type (struct d_print_info *, +d_print_array_type (struct d_print_info *, int, const struct demangle_component *, struct d_print_mod *); static void -d_print_expr_op (struct d_print_info *, const struct demangle_component *); +d_print_expr_op (struct d_print_info *, int, const struct demangle_component *); static void -d_print_cast (struct d_print_info *, const struct demangle_component *); +d_print_cast (struct d_print_info *, int, const struct demangle_component *); +static int d_demangle_callback (const char *, int, + demangle_callbackref, void *); static char *d_demangle (const char *, int, size_t *); #ifdef CP_DEMANGLE_DEBUG @@ -436,7 +494,11 @@ d_dump (struct demangle_component *dc, int indent) int i; if (dc == NULL) - return; + { + if (indent == 0) + printf ("failed demangling\n"); + return; + } for (i = 0; i < indent; ++i) putchar (' '); @@ -520,6 +582,15 @@ d_dump (struct demangle_component *dc, int indent) case DEMANGLE_COMPONENT_REFTEMP: printf ("reference temporary\n"); break; + case DEMANGLE_COMPONENT_HIDDEN_ALIAS: + printf ("hidden alias\n"); + break; + case DEMANGLE_COMPONENT_TRANSACTION_CLONE: + printf ("transaction clone\n"); + break; + case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE: + printf ("non-transaction clone\n"); + break; case DEMANGLE_COMPONENT_RESTRICT: printf ("restrict\n"); break; @@ -547,6 +618,9 @@ d_dump (struct demangle_component *dc, int indent) case DEMANGLE_COMPONENT_REFERENCE: printf ("reference\n"); break; + case DEMANGLE_COMPONENT_RVALUE_REFERENCE: + printf ("rvalue reference\n"); + break; case DEMANGLE_COMPONENT_COMPLEX: printf ("complex\n"); break; @@ -565,6 +639,9 @@ d_dump (struct demangle_component *dc, int indent) case DEMANGLE_COMPONENT_PTRMEM_TYPE: printf ("pointer to member type\n"); break; + case DEMANGLE_COMPONENT_FIXED_TYPE: + printf ("fixed-point type\n"); + break; case DEMANGLE_COMPONENT_ARGLIST: printf ("argument list\n"); break; @@ -598,6 +675,21 @@ d_dump (struct demangle_component *dc, int indent) case DEMANGLE_COMPONENT_LITERAL_NEG: printf ("negative literal\n"); break; + case DEMANGLE_COMPONENT_JAVA_RESOURCE: + printf ("java resource\n"); + break; + case DEMANGLE_COMPONENT_COMPOUND_NAME: + printf ("compound name\n"); + break; + case DEMANGLE_COMPONENT_CHARACTER: + printf ("character '%c'\n", dc->u.s_character.character); + return; + case DEMANGLE_COMPONENT_DECLTYPE: + printf ("decltype\n"); + break; + case DEMANGLE_COMPONENT_PACK_EXPANSION: + printf ("pack expansion\n"); + break; } d_dump (d_left (dc), indent + 2); @@ -645,8 +737,8 @@ cplus_demangle_fill_ctor (struct demangle_component *p, { if (p == NULL || name == NULL - || (kind < gnu_v3_complete_object_ctor - && kind > gnu_v3_complete_object_allocating_ctor)) + || (int) kind < gnu_v3_complete_object_ctor + || (int) kind > gnu_v3_object_ctor_group) return 0; p->type = DEMANGLE_COMPONENT_CTOR; p->u.s_ctor.kind = kind; @@ -664,8 +756,8 @@ cplus_demangle_fill_dtor (struct demangle_component *p, { if (p == NULL || name == NULL - || (kind < gnu_v3_deleting_dtor - && kind > gnu_v3_base_object_dtor)) + || (int) kind < gnu_v3_deleting_dtor + || (int) kind > gnu_v3_object_dtor_group) return 0; p->type = DEMANGLE_COMPONENT_DTOR; p->u.s_dtor.kind = kind; @@ -717,6 +809,9 @@ d_make_comp (struct d_info *di, enum demangle_component_type type, case DEMANGLE_COMPONENT_TRINARY_ARG2: case DEMANGLE_COMPONENT_LITERAL: case DEMANGLE_COMPONENT_LITERAL_NEG: + case DEMANGLE_COMPONENT_COMPOUND_NAME: + case DEMANGLE_COMPONENT_VECTOR_TYPE: + case DEMANGLE_COMPONENT_CLONE: if (left == NULL || right == NULL) return NULL; break; @@ -733,14 +828,21 @@ d_make_comp (struct d_info *di, enum demangle_component_type type, case DEMANGLE_COMPONENT_JAVA_CLASS: case DEMANGLE_COMPONENT_GUARD: case DEMANGLE_COMPONENT_REFTEMP: + case DEMANGLE_COMPONENT_HIDDEN_ALIAS: + case DEMANGLE_COMPONENT_TRANSACTION_CLONE: + case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE: case DEMANGLE_COMPONENT_POINTER: case DEMANGLE_COMPONENT_REFERENCE: + case DEMANGLE_COMPONENT_RVALUE_REFERENCE: case DEMANGLE_COMPONENT_COMPLEX: case DEMANGLE_COMPONENT_IMAGINARY: case DEMANGLE_COMPONENT_VENDOR_TYPE: - case DEMANGLE_COMPONENT_ARGLIST: - case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST: case DEMANGLE_COMPONENT_CAST: + case DEMANGLE_COMPONENT_JAVA_RESOURCE: + case DEMANGLE_COMPONENT_DECLTYPE: + case DEMANGLE_COMPONENT_PACK_EXPANSION: + case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS: + case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS: if (left == NULL) return NULL; break; @@ -761,6 +863,8 @@ d_make_comp (struct d_info *di, enum demangle_component_type type, case DEMANGLE_COMPONENT_RESTRICT_THIS: case DEMANGLE_COMPONENT_VOLATILE_THIS: case DEMANGLE_COMPONENT_CONST_THIS: + case DEMANGLE_COMPONENT_ARGLIST: + case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST: break; /* Other types should not be seen here. */ @@ -778,6 +882,17 @@ d_make_comp (struct d_info *di, enum demangle_component_type type, return p; } +/* Add a new demangle mangled name component. */ + +static struct demangle_component * +d_make_demangle_mangled_name (struct d_info *di, const char *s) +{ + if (d_peek_char (di) != '_' || d_peek_next_char (di) != 'Z') + return d_make_name (di, s, strlen (s)); + d_advance (di, 2); + return d_encoding (di, 0); +} + /* Add a new name component. */ static struct demangle_component * @@ -840,6 +955,20 @@ d_make_extended_operator (struct d_info *di, int args, return p; } +static struct demangle_component * +d_make_default_arg (struct d_info *di, int num, + struct demangle_component *sub) +{ + struct demangle_component *p = d_make_empty (di); + if (p) + { + p->type = DEMANGLE_COMPONENT_DEFAULT_ARG; + p->u.s_unary_num.num = num; + p->u.s_unary_num.sub = sub; + } + return p; +} + /* Add a new constructor component. */ static struct demangle_component * @@ -884,6 +1013,22 @@ d_make_template_param (struct d_info *di, long i) return p; } +/* Add a new function parameter. */ + +static struct demangle_component * +d_make_function_param (struct d_info *di, long i) +{ + struct demangle_component *p; + + p = d_make_empty (di); + if (p != NULL) + { + p->type = DEMANGLE_COMPONENT_FUNCTION_PARAM; + p->u.s_number.number = i; + } + return p; +} + /* Add a new standard substitution component. */ static struct demangle_component * @@ -901,7 +1046,7 @@ d_make_sub (struct d_info *di, const char *name, int len) return p; } -/* ::= _Z +/* ::= _Z []* TOP_LEVEL is non-zero when called at the top level. */ @@ -909,11 +1054,28 @@ CP_STATIC_IF_GLIBCPP_V3 struct demangle_component * cplus_demangle_mangled_name (struct d_info *di, int top_level) { - if (d_next_char (di) != '_') + struct demangle_component *p; + + if (! d_check_char (di, '_') + /* Allow missing _ if not at toplevel to work around a + bug in G++ abi-version=2 mangling; see the comment in + write_template_arg. */ + && top_level) return NULL; - if (d_next_char (di) != 'Z') + if (! d_check_char (di, 'Z')) return NULL; - return d_encoding (di, top_level); + p = d_encoding (di, top_level); + + /* If at top level and parsing parameters, check for a clone + suffix. */ + if (top_level && (di->options & DMGL_PARAMS) != 0) + while (d_peek_char (di) == '.' + && (IS_LOWER (d_peek_next_char (di)) + || d_peek_next_char (di) == '_' + || IS_DIGIT (d_peek_next_char (di)))) + p = d_clone_suffix (di, p); + + return p; } /* Return whether a function should have a return type. The argument @@ -1017,7 +1179,7 @@ d_encoding (struct d_info *di, int top_level) } peek = d_peek_char (di); - if (peek == '\0' || peek == 'E') + if (dc == NULL || peek == '\0' || peek == 'E') return dc; return d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME, dc, d_bare_function_type (di, has_return_type (dc))); @@ -1050,6 +1212,10 @@ d_name (struct d_info *di) case 'Z': return d_local_name (di); + case 'L': + case 'U': + return d_unqualified_name (di); + case 'S': { int subst; @@ -1119,7 +1285,7 @@ d_nested_name (struct d_info *di) struct demangle_component *ret; struct demangle_component **pret; - if (d_next_char (di) != 'N') + if (! d_check_char (di, 'N')) return NULL; pret = d_cv_qualifiers (di, &ret, 1); @@ -1130,7 +1296,7 @@ d_nested_name (struct d_info *di) if (*pret == NULL) return NULL; - if (d_next_char (di) != 'E') + if (! d_check_char (di, 'E')) return NULL; return ret; @@ -1139,6 +1305,7 @@ d_nested_name (struct d_info *di) /* ::= ::= ::= + ::= ::= ::= @@ -1167,10 +1334,21 @@ d_prefix (struct d_info *di) here. */ comb_type = DEMANGLE_COMPONENT_QUAL_NAME; - if (IS_DIGIT (peek) + if (peek == 'D') + { + char peek2 = d_peek_next_char (di); + if (peek2 == 'T' || peek2 == 't') + /* Decltype. */ + dc = cplus_demangle_type (di); + else + /* Destructor name. */ + dc = d_unqualified_name (di); + } + else if (IS_DIGIT (peek) || IS_LOWER (peek) || peek == 'C' - || peek == 'D') + || peek == 'U' + || peek == 'L') dc = d_unqualified_name (di); else if (peek == 'S') dc = d_substitution (di, 1); @@ -1185,6 +1363,16 @@ d_prefix (struct d_info *di) dc = d_template_param (di); else if (peek == 'E') return ret; + else if (peek == 'M') + { + /* Initializer scope for a lambda. We don't need to represent + this; the normal code will just treat the variable as a type + scope, which gives appropriate output. */ + if (ret == NULL) + return NULL; + d_advance (di, 1); + continue; + } else return NULL; @@ -1204,6 +1392,9 @@ d_prefix (struct d_info *di) /* ::= ::= ::= + ::= + + ::= L */ static struct demangle_component * @@ -1225,6 +1416,31 @@ d_unqualified_name (struct d_info *di) } else if (peek == 'C' || peek == 'D') return d_ctor_dtor_name (di); + else if (peek == 'L') + { + struct demangle_component * ret; + + d_advance (di, 1); + + ret = d_source_name (di); + if (ret == NULL) + return NULL; + if (! d_discriminator (di)) + return NULL; + return ret; + } + else if (peek == 'U') + { + switch (d_peek_next_char (di)) + { + case 'l': + return d_lambda (di); + case 't': + return d_unnamed_type (di); + default: + return NULL; + } + } else return NULL; } @@ -1278,6 +1494,20 @@ d_number (struct d_info *di) } } +/* Like d_number, but returns a demangle_component. */ + +static struct demangle_component * +d_number_component (struct d_info *di) +{ + struct demangle_component *ret = d_make_empty (di); + if (ret) + { + ret->type = DEMANGLE_COMPONENT_NUMBER; + ret->u.s_number.number = d_number (di); + } + return ret; +} + /* identifier ::= <(unqualified source code identifier)> */ static struct demangle_component * @@ -1336,13 +1566,14 @@ const struct demangle_operator_info cplus_demangle_operators[] = { "aa", NL ("&&"), 2 }, { "ad", NL ("&"), 1 }, { "an", NL ("&"), 2 }, - { "cl", NL ("()"), 0 }, + { "cl", NL ("()"), 2 }, { "cm", NL (","), 2 }, { "co", NL ("~"), 1 }, { "dV", NL ("/="), 2 }, { "da", NL ("delete[]"), 1 }, { "de", NL ("*"), 1 }, { "dl", NL ("delete"), 1 }, + { "dt", NL ("."), 2 }, { "dv", NL ("/"), 2 }, { "eO", NL ("^="), 2 }, { "eo", NL ("^"), 2 }, @@ -1380,6 +1611,8 @@ const struct demangle_operator_info cplus_demangle_operators[] = { "rs", NL (">>"), 2 }, { "st", NL ("sizeof "), 1 }, { "sz", NL ("sizeof "), 1 }, + { "at", NL ("alignof "), 1 }, + { "az", NL ("alignof "), 1 }, { NULL, NULL, 0, 0 } }; @@ -1427,6 +1660,102 @@ d_operator_name (struct d_info *di) } } +static struct demangle_component * +d_make_character (struct d_info *di, int c) +{ + struct demangle_component *p; + p = d_make_empty (di); + if (p != NULL) + { + p->type = DEMANGLE_COMPONENT_CHARACTER; + p->u.s_character.character = c; + } + return p; +} + +static struct demangle_component * +d_java_resource (struct d_info *di) +{ + struct demangle_component *p = NULL; + struct demangle_component *next = NULL; + long len, i; + char c; + const char *str; + + len = d_number (di); + if (len <= 1) + return NULL; + + /* Eat the leading '_'. */ + if (d_next_char (di) != '_') + return NULL; + len--; + + str = d_str (di); + i = 0; + + while (len > 0) + { + c = str[i]; + if (!c) + return NULL; + + /* Each chunk is either a '$' escape... */ + if (c == '$') + { + i++; + switch (str[i++]) + { + case 'S': + c = '/'; + break; + case '_': + c = '.'; + break; + case '$': + c = '$'; + break; + default: + return NULL; + } + next = d_make_character (di, c); + d_advance (di, i); + str = d_str (di); + len -= i; + i = 0; + if (next == NULL) + return NULL; + } + /* ... or a sequence of characters. */ + else + { + while (i < len && str[i] && str[i] != '$') + i++; + + next = d_make_name (di, str, i); + d_advance (di, i); + str = d_str (di); + len -= i; + i = 0; + if (next == NULL) + return NULL; + } + + if (p == NULL) + p = next; + else + { + p = d_make_comp (di, DEMANGLE_COMPONENT_COMPOUND_NAME, p, next); + if (p == NULL) + return NULL; + } + } + + p = d_make_comp (di, DEMANGLE_COMPONENT_JAVA_RESOURCE, p, NULL); + + return p; +} + /* ::= TV ::= TT ::= TI @@ -1439,16 +1768,17 @@ d_operator_name (struct d_info *di) ::= TF ::= TJ ::= GR + ::= GA + ::= Gr + ::= GTt + ::= GTn */ static struct demangle_component * d_special_name (struct d_info *di) { - char c; - di->expansion += 20; - c = d_next_char (di); - if (c == 'T') + if (d_check_char (di, 'T')) { switch (d_next_char (di)) { @@ -1497,7 +1827,7 @@ d_special_name (struct d_info *di) offset = d_number (di); if (offset < 0) return NULL; - if (d_next_char (di) != '_') + if (! d_check_char (di, '_')) return NULL; base_type = cplus_demangle_type (di); /* We don't display the offset. FIXME: We should display @@ -1518,7 +1848,7 @@ d_special_name (struct d_info *di) return NULL; } } - else if (c == 'G') + else if (d_check_char (di, 'G')) { switch (d_next_char (di)) { @@ -1526,8 +1856,35 @@ d_special_name (struct d_info *di) return d_make_comp (di, DEMANGLE_COMPONENT_GUARD, d_name (di), NULL); case 'R': - return d_make_comp (di, DEMANGLE_COMPONENT_REFTEMP, d_name (di), - NULL); + { + struct demangle_component *name = d_name (di); + return d_make_comp (di, DEMANGLE_COMPONENT_REFTEMP, name, + d_number_component (di)); + } + + case 'A': + return d_make_comp (di, DEMANGLE_COMPONENT_HIDDEN_ALIAS, + d_encoding (di, 0), NULL); + + case 'T': + switch (d_next_char (di)) + { + case 'n': + return d_make_comp (di, DEMANGLE_COMPONENT_NONTRANSACTION_CLONE, + d_encoding (di, 0), NULL); + default: + /* ??? The proposal is that other letters (such as 'h') stand + for different variants of transaction cloning, such as + compiling directly for hardware transaction support. But + they still should all be transactional clones of some sort + so go ahead and call them that. */ + case 't': + return d_make_comp (di, DEMANGLE_COMPONENT_TRANSACTION_CLONE, + d_encoding (di, 0), NULL); + } + + case 'r': + return d_java_resource (di); default: return NULL; @@ -1561,14 +1918,14 @@ d_call_offset (struct d_info *di, int c) else if (c == 'v') { d_number (di); - if (d_next_char (di) != '_') + if (! d_check_char (di, '_')) return 0; d_number (di); } else return 0; - if (d_next_char (di) != '_') + if (! d_check_char (di, '_')) return 0; return 1; @@ -1592,13 +1949,13 @@ d_ctor_dtor_name (struct d_info *di) else if (di->last_name->type == DEMANGLE_COMPONENT_SUB_STD) di->expansion += di->last_name->u.s_string.len; } - switch (d_next_char (di)) + switch (d_peek_char (di)) { case 'C': { enum gnu_v3_ctor_kinds kind; - switch (d_next_char (di)) + switch (d_peek_next_char (di)) { case '1': kind = gnu_v3_complete_object_ctor; @@ -1609,9 +1966,13 @@ d_ctor_dtor_name (struct d_info *di) case '3': kind = gnu_v3_complete_object_allocating_ctor; break; + case '5': + kind = gnu_v3_object_ctor_group; + break; default: return NULL; } + d_advance (di, 2); return d_make_ctor (di, kind, di->last_name); } @@ -1619,7 +1980,7 @@ d_ctor_dtor_name (struct d_info *di) { enum gnu_v3_dtor_kinds kind; - switch (d_next_char (di)) + switch (d_peek_next_char (di)) { case '0': kind = gnu_v3_deleting_dtor; @@ -1630,9 +1991,13 @@ d_ctor_dtor_name (struct d_info *di) case '2': kind = gnu_v3_base_object_dtor; break; + case '5': + kind = gnu_v3_object_dtor_group; + break; default: return NULL; } + d_advance (di, 2); return d_make_dtor (di, kind, di->last_name); } @@ -1652,6 +2017,7 @@ d_ctor_dtor_name (struct d_info *di) ::= ::= P ::= R + ::= O (C++0x) ::= C ::= G ::= U @@ -1692,6 +2058,14 @@ cplus_demangle_builtin_types[D_BUILTIN_TYPE_COUNT] = /* y */ { NL ("unsigned long long"), NL ("unsigned long long"), D_PRINT_UNSIGNED_LONG_LONG }, /* z */ { NL ("..."), NL ("..."), D_PRINT_DEFAULT }, + /* 26 */ { NL ("decimal32"), NL ("decimal32"), D_PRINT_DEFAULT }, + /* 27 */ { NL ("decimal64"), NL ("decimal64"), D_PRINT_DEFAULT }, + /* 28 */ { NL ("decimal128"), NL ("decimal128"), D_PRINT_DEFAULT }, + /* 29 */ { NL ("half"), NL ("half"), D_PRINT_FLOAT }, + /* 30 */ { NL ("char16_t"), NL ("char16_t"), D_PRINT_DEFAULT }, + /* 31 */ { NL ("char32_t"), NL ("char32_t"), D_PRINT_DEFAULT }, + /* 32 */ { NL ("decltype(nullptr)"), NL ("decltype(nullptr)"), + D_PRINT_DEFAULT }, }; CP_STATIC_IF_GLIBCPP_V3 @@ -1726,7 +2100,7 @@ cplus_demangle_type (struct d_info *di) if (pret == NULL) return NULL; *pret = cplus_demangle_type (di); - if (! d_add_substitution (di, ret)) + if (! *pret || ! d_add_substitution (di, ret)) return NULL; return ret; } @@ -1818,6 +2192,12 @@ cplus_demangle_type (struct d_info *di) } break; + case 'O': + d_advance (di, 1); + ret = d_make_comp (di, DEMANGLE_COMPONENT_RVALUE_REFERENCE, + cplus_demangle_type (di), NULL); + break; + case 'P': d_advance (di, 1); ret = d_make_comp (di, DEMANGLE_COMPONENT_POINTER, @@ -1827,7 +2207,7 @@ cplus_demangle_type (struct d_info *di) case 'R': d_advance (di, 1); ret = d_make_comp (di, DEMANGLE_COMPONENT_REFERENCE, - cplus_demangle_type (di), NULL); + cplus_demangle_type (di), NULL); break; case 'C': @@ -1849,6 +2229,88 @@ cplus_demangle_type (struct d_info *di) cplus_demangle_type (di), ret); break; + case 'D': + can_subst = 0; + d_advance (di, 1); + peek = d_next_char (di); + switch (peek) + { + case 'T': + case 't': + /* decltype (expression) */ + ret = d_make_comp (di, DEMANGLE_COMPONENT_DECLTYPE, + d_expression (di), NULL); + if (ret && d_next_char (di) != 'E') + ret = NULL; + break; + + case 'p': + /* Pack expansion. */ + ret = d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION, + cplus_demangle_type (di), NULL); + break; + + case 'f': + /* 32-bit decimal floating point */ + ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[26]); + di->expansion += ret->u.s_builtin.type->len; + break; + case 'd': + /* 64-bit DFP */ + ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[27]); + di->expansion += ret->u.s_builtin.type->len; + break; + case 'e': + /* 128-bit DFP */ + ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[28]); + di->expansion += ret->u.s_builtin.type->len; + break; + case 'h': + /* 16-bit half-precision FP */ + ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[29]); + di->expansion += ret->u.s_builtin.type->len; + break; + case 's': + /* char16_t */ + ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[30]); + di->expansion += ret->u.s_builtin.type->len; + break; + case 'i': + /* char32_t */ + ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[31]); + di->expansion += ret->u.s_builtin.type->len; + break; + + case 'F': + /* Fixed point types. DF */ + ret = d_make_empty (di); + ret->type = DEMANGLE_COMPONENT_FIXED_TYPE; + if ((ret->u.s_fixed.accum = IS_DIGIT (d_peek_char (di)))) + /* For demangling we don't care about the bits. */ + d_number (di); + ret->u.s_fixed.length = cplus_demangle_type (di); + if (ret->u.s_fixed.length == NULL) + return NULL; + d_number (di); + peek = d_next_char (di); + ret->u.s_fixed.sat = (peek == 's'); + break; + + case 'v': + ret = d_vector_type (di); + break; + + case 'n': + /* decltype(nullptr) */ + ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[32]); + di->expansion += ret->u.s_builtin.type->len; + break; + + default: + return NULL; + } + break; + default: return NULL; } @@ -1868,8 +2330,10 @@ static struct demangle_component ** d_cv_qualifiers (struct d_info *di, struct demangle_component **pret, int member_fn) { + struct demangle_component **pstart; char peek; + pstart = pret; peek = d_peek_char (di); while (peek == 'r' || peek == 'V' || peek == 'K') { @@ -1906,6 +2370,28 @@ d_cv_qualifiers (struct d_info *di, peek = d_peek_char (di); } + if (!member_fn && peek == 'F') + { + while (pstart != pret) + { + switch ((*pstart)->type) + { + case DEMANGLE_COMPONENT_RESTRICT: + (*pstart)->type = DEMANGLE_COMPONENT_RESTRICT_THIS; + break; + case DEMANGLE_COMPONENT_VOLATILE: + (*pstart)->type = DEMANGLE_COMPONENT_VOLATILE_THIS; + break; + case DEMANGLE_COMPONENT_CONST: + (*pstart)->type = DEMANGLE_COMPONENT_CONST_THIS; + break; + default: + break; + } + pstart = &d_left (*pstart); + } + } + return pret; } @@ -1916,7 +2402,7 @@ d_function_type (struct d_info *di) { struct demangle_component *ret; - if (d_next_char (di) != 'F') + if (! d_check_char (di, 'F')) return NULL; if (d_peek_char (di) == 'Y') { @@ -1925,46 +2411,35 @@ d_function_type (struct d_info *di) d_advance (di, 1); } ret = d_bare_function_type (di, 1); - if (d_next_char (di) != 'E') + if (! d_check_char (di, 'E')) return NULL; return ret; } -/* ::= + */ +/* + */ static struct demangle_component * -d_bare_function_type (struct d_info *di, int has_return_type) +d_parmlist (struct d_info *di) { - struct demangle_component *return_type; struct demangle_component *tl; struct demangle_component **ptl; - return_type = NULL; tl = NULL; ptl = &tl; while (1) { - char peek; struct demangle_component *type; - peek = d_peek_char (di); - if (peek == '\0' || peek == 'E') + char peek = d_peek_char (di); + if (peek == '\0' || peek == 'E' || peek == '.') break; type = cplus_demangle_type (di); if (type == NULL) return NULL; - if (has_return_type) - { - return_type = type; - has_return_type = 0; - } - else - { - *ptl = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, type, NULL); - if (*ptl == NULL) - return NULL; - ptl = &d_right (*ptl); - } + *ptl = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, type, NULL); + if (*ptl == NULL) + return NULL; + ptl = &d_right (*ptl); } /* There should be at least one parameter type besides the optional @@ -1979,32 +2454,67 @@ d_bare_function_type (struct d_info *di, int has_return_type) && d_left (tl)->u.s_builtin.type->print == D_PRINT_VOID) { di->expansion -= d_left (tl)->u.s_builtin.type->len; - tl = NULL; + d_left (tl) = NULL; } - return d_make_comp (di, DEMANGLE_COMPONENT_FUNCTION_TYPE, return_type, tl); -} - -/* ::= */ - -static struct demangle_component * -d_class_enum_type (struct d_info *di) -{ - return d_name (di); + return tl; } -/* ::= A <(positive dimension) number> _ <(element) type> - ::= A [<(dimension) expression>] _ <(element) type> -*/ +/* ::= [J]+ */ static struct demangle_component * -d_array_type (struct d_info *di) +d_bare_function_type (struct d_info *di, int has_return_type) { + struct demangle_component *return_type; + struct demangle_component *tl; char peek; - struct demangle_component *dim; - if (d_next_char (di) != 'A') - return NULL; + /* Detect special qualifier indicating that the first argument + is the return type. */ + peek = d_peek_char (di); + if (peek == 'J') + { + d_advance (di, 1); + has_return_type = 1; + } + + if (has_return_type) + { + return_type = cplus_demangle_type (di); + if (return_type == NULL) + return NULL; + } + else + return_type = NULL; + + tl = d_parmlist (di); + if (tl == NULL) + return NULL; + + return d_make_comp (di, DEMANGLE_COMPONENT_FUNCTION_TYPE, + return_type, tl); +} + +/* ::= */ + +static struct demangle_component * +d_class_enum_type (struct d_info *di) +{ + return d_name (di); +} + +/* ::= A <(positive dimension) number> _ <(element) type> + ::= A [<(dimension) expression>] _ <(element) type> +*/ + +static struct demangle_component * +d_array_type (struct d_info *di) +{ + char peek; + struct demangle_component *dim; + + if (! d_check_char (di, 'A')) + return NULL; peek = d_peek_char (di); if (peek == '_') @@ -2031,13 +2541,41 @@ d_array_type (struct d_info *di) return NULL; } - if (d_next_char (di) != '_') + if (! d_check_char (di, '_')) return NULL; return d_make_comp (di, DEMANGLE_COMPONENT_ARRAY_TYPE, dim, cplus_demangle_type (di)); } +/* ::= Dv _ + ::= Dv _ _ */ + +static struct demangle_component * +d_vector_type (struct d_info *di) +{ + char peek; + struct demangle_component *dim; + + peek = d_peek_char (di); + if (peek == '_') + { + d_advance (di, 1); + dim = d_expression (di); + } + else + dim = d_number_component (di); + + if (dim == NULL) + return NULL; + + if (! d_check_char (di, '_')) + return NULL; + + return d_make_comp (di, DEMANGLE_COMPONENT_VECTOR_TYPE, dim, + cplus_demangle_type (di)); +} + /* ::= M <(class) type> <(member) type> */ static struct demangle_component * @@ -2047,7 +2585,7 @@ d_pointer_to_member_type (struct d_info *di) struct demangle_component *mem; struct demangle_component **pmem; - if (d_next_char (di) != 'M') + if (! d_check_char (di, 'M')) return NULL; cl = cplus_demangle_type (di); @@ -2063,16 +2601,45 @@ d_pointer_to_member_type (struct d_info *di) g++ does not work that way. g++ treats only the CV-qualified member function as a substitution source. FIXME. So to work with g++, we need to pull off the CV-qualifiers here, in order to - avoid calling add_substitution() in cplus_demangle_type(). */ + avoid calling add_substitution() in cplus_demangle_type(). But + for a CV-qualified member which is not a function, g++ does + follow the ABI, so we need to handle that case here by calling + d_add_substitution ourselves. */ pmem = d_cv_qualifiers (di, &mem, 1); if (pmem == NULL) return NULL; *pmem = cplus_demangle_type (di); + if (*pmem == NULL) + return NULL; + + if (pmem != &mem && (*pmem)->type != DEMANGLE_COMPONENT_FUNCTION_TYPE) + { + if (! d_add_substitution (di, mem)) + return NULL; + } return d_make_comp (di, DEMANGLE_COMPONENT_PTRMEM_TYPE, cl, mem); } +/* _ */ + +static long +d_compact_number (struct d_info *di) +{ + long num; + if (d_peek_char (di) == '_') + num = 0; + else if (d_peek_char (di) == 'n') + return -1; + else + num = d_number (di) + 1; + + if (! d_check_char (di, '_')) + return -1; + return num; +} + /* ::= T_ ::= T <(parameter-2 non-negative) number> _ */ @@ -2082,20 +2649,11 @@ d_template_param (struct d_info *di) { long param; - if (d_next_char (di) != 'T') + if (! d_check_char (di, 'T')) return NULL; - if (d_peek_char (di) == '_') - param = 0; - else - { - param = d_number (di); - if (param < 0) - return NULL; - param += 1; - } - - if (d_next_char (di) != '_') + param = d_compact_number (di); + if (param < 0) return NULL; ++di->did_subs; @@ -2117,9 +2675,16 @@ d_template_args (struct d_info *di) constructor or destructor. */ hold_last_name = di->last_name; - if (d_next_char (di) != 'I') + if (! d_check_char (di, 'I')) return NULL; + if (d_peek_char (di) == 'E') + { + /* An argument pack can be empty. */ + d_advance (di, 1); + return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, NULL, NULL); + } + al = NULL; pal = &al; while (1) @@ -2162,21 +2727,61 @@ d_template_arg (struct d_info *di) case 'X': d_advance (di, 1); ret = d_expression (di); - if (d_next_char (di) != 'E') + if (! d_check_char (di, 'E')) return NULL; return ret; case 'L': return d_expr_primary (di); + case 'I': + /* An argument pack. */ + return d_template_args (di); + default: return cplus_demangle_type (di); } } +/* Subroutine of ::= cl + E */ + +static struct demangle_component * +d_exprlist (struct d_info *di) +{ + struct demangle_component *list = NULL; + struct demangle_component **p = &list; + + if (d_peek_char (di) == 'E') + { + d_advance (di, 1); + return d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, NULL, NULL); + } + + while (1) + { + struct demangle_component *arg = d_expression (di); + if (arg == NULL) + return NULL; + + *p = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, arg, NULL); + if (*p == NULL) + return NULL; + p = &d_right (*p); + + if (d_peek_char (di) == 'E') + { + d_advance (di, 1); + break; + } + } + + return list; +} + /* ::= <(unary) operator-name> ::= <(binary) operator-name> ::= <(trinary) operator-name> + ::= cl + E ::= st ::= ::= sr @@ -2209,6 +2814,51 @@ d_expression (struct d_info *di) d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name, d_template_args (di))); } + else if (peek == 's' && d_peek_next_char (di) == 'p') + { + d_advance (di, 2); + return d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION, + d_expression (di), NULL); + } + else if (peek == 'f' && d_peek_next_char (di) == 'p') + { + /* Function parameter used in a late-specified return type. */ + int index; + d_advance (di, 2); + if (d_peek_char (di) == 'T') + { + /* 'this' parameter. */ + d_advance (di, 1); + index = 0; + } + else + { + index = d_compact_number (di) + 1; + if (index == 0) + return NULL; + } + return d_make_function_param (di, index); + } + else if (IS_DIGIT (peek) + || (peek == 'o' && d_peek_next_char (di) == 'n')) + { + /* We can get an unqualified name as an expression in the case of + a dependent function call, i.e. decltype(f(t)). */ + struct demangle_component *name; + + if (peek == 'o') + /* operator-function-id, i.e. operator+(t). */ + d_advance (di, 2); + + name = d_unqualified_name (di); + if (name == NULL) + return NULL; + if (d_peek_char (di) == 'I') + return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name, + d_template_args (di)); + else + return name; + } else { struct demangle_component *op; @@ -2244,18 +2894,39 @@ d_expression (struct d_info *di) switch (args) { case 1: - return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op, - d_expression (di)); + { + struct demangle_component *operand; + if (op->type == DEMANGLE_COMPONENT_CAST + && d_check_char (di, '_')) + operand = d_exprlist (di); + else + operand = d_expression (di); + return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op, + operand); + } case 2: { struct demangle_component *left; + struct demangle_component *right; + const char *code = op->u.s_operator.op->code; left = d_expression (di); + if (!strcmp (code, "cl")) + right = d_exprlist (di); + else if (!strcmp (code, "dt") || !strcmp (code, "pt")) + { + right = d_unqualified_name (di); + if (d_peek_char (di) == 'I') + right = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, + right, d_template_args (di)); + } + else + right = d_expression (di); + return d_make_comp (di, DEMANGLE_COMPONENT_BINARY, op, d_make_comp (di, DEMANGLE_COMPONENT_BINARY_ARGS, - left, - d_expression (di))); + left, right)); } case 3: { @@ -2289,9 +2960,11 @@ d_expr_primary (struct d_info *di) { struct demangle_component *ret; - if (d_next_char (di) != 'L') + if (! d_check_char (di, 'L')) return NULL; - if (d_peek_char (di) == '_') + if (d_peek_char (di) == '_' + /* Workaround for G++ bug; see comment in write_template_arg. */ + || d_peek_char (di) == 'Z') ret = cplus_demangle_mangled_name (di, 0); else { @@ -2328,10 +3001,14 @@ d_expr_primary (struct d_info *di) } s = d_str (di); while (d_peek_char (di) != 'E') - d_advance (di, 1); + { + if (d_peek_char (di) == '\0') + return NULL; + d_advance (di, 1); + } ret = d_make_comp (di, t, type, d_make_name (di, s, d_str (di) - s)); } - if (d_next_char (di) != 'E') + if (! d_check_char (di, 'E')) return NULL; return ret; } @@ -2345,12 +3022,12 @@ d_local_name (struct d_info *di) { struct demangle_component *function; - if (d_next_char (di) != 'Z') + if (! d_check_char (di, 'Z')) return NULL; function = d_encoding (di, 0); - if (d_next_char (di) != 'E') + if (! d_check_char (di, 'E')) return NULL; if (d_peek_char (di) == 's') @@ -2365,10 +3042,31 @@ d_local_name (struct d_info *di) else { struct demangle_component *name; + int num = -1; + + if (d_peek_char (di) == 'd') + { + /* Default argument scope: d _. */ + d_advance (di, 1); + num = d_compact_number (di); + if (num < 0) + return NULL; + } name = d_name (di); - if (! d_discriminator (di)) - return NULL; + if (name) + switch (name->type) + { + /* Lambdas and unnamed types have internal discriminators. */ + case DEMANGLE_COMPONENT_LAMBDA: + case DEMANGLE_COMPONENT_UNNAMED_TYPE: + break; + default: + if (! d_discriminator (di)) + return NULL; + } + if (num >= 0) + name = d_make_default_arg (di, num, name); return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function, name); } } @@ -2392,6 +3090,102 @@ d_discriminator (struct d_info *di) return 1; } +/* ::= Ul E [ ] _ */ + +static struct demangle_component * +d_lambda (struct d_info *di) +{ + struct demangle_component *tl; + struct demangle_component *ret; + int num; + + if (! d_check_char (di, 'U')) + return NULL; + if (! d_check_char (di, 'l')) + return NULL; + + tl = d_parmlist (di); + if (tl == NULL) + return NULL; + + if (! d_check_char (di, 'E')) + return NULL; + + num = d_compact_number (di); + if (num < 0) + return NULL; + + ret = d_make_empty (di); + if (ret) + { + ret->type = DEMANGLE_COMPONENT_LAMBDA; + ret->u.s_unary_num.sub = tl; + ret->u.s_unary_num.num = num; + } + + if (! d_add_substitution (di, ret)) + return NULL; + + return ret; +} + +/* ::= Ut [ ] _ */ + +static struct demangle_component * +d_unnamed_type (struct d_info *di) +{ + struct demangle_component *ret; + long num; + + if (! d_check_char (di, 'U')) + return NULL; + if (! d_check_char (di, 't')) + return NULL; + + num = d_compact_number (di); + if (num < 0) + return NULL; + + ret = d_make_empty (di); + if (ret) + { + ret->type = DEMANGLE_COMPONENT_UNNAMED_TYPE; + ret->u.s_number.number = num; + } + + if (! d_add_substitution (di, ret)) + return NULL; + + return ret; +} + +/* ::= [ . ] [ . ]* +*/ + +static struct demangle_component * +d_clone_suffix (struct d_info *di, struct demangle_component *encoding) +{ + const char *suffix = d_str (di); + const char *pend = suffix; + struct demangle_component *n; + + if (*pend == '.' && (IS_LOWER (pend[1]) || pend[1] == '_')) + { + pend += 2; + while (IS_LOWER (*pend) || *pend == '_') + ++pend; + } + while (*pend == '.' && IS_DIGIT (pend[1])) + { + pend += 2; + while (IS_DIGIT (*pend)) + ++pend; + } + d_advance (di, pend - suffix); + n = d_make_name (di, suffix, pend - suffix); + return d_make_comp (di, DEMANGLE_COMPONENT_CLONE, encoding, n); +} + /* Add a new substitution. */ static int @@ -2455,25 +3249,30 @@ d_substitution (struct d_info *di, int prefix) { char c; - if (d_next_char (di) != 'S') + if (! d_check_char (di, 'S')) return NULL; c = d_next_char (di); if (c == '_' || IS_DIGIT (c) || IS_UPPER (c)) { - int id; + unsigned int id; id = 0; if (c != '_') { do { + unsigned int new_id; + if (IS_DIGIT (c)) - id = id * 36 + c - '0'; + new_id = id * 36 + c - '0'; else if (IS_UPPER (c)) - id = id * 36 + c - 'A' + 10; + new_id = id * 36 + c - 'A' + 10; else return NULL; + if (new_id < id) + return NULL; + id = new_id; c = d_next_char (di); } while (c != '_'); @@ -2481,7 +3280,7 @@ d_substitution (struct d_info *di, int prefix) ++id; } - if (id >= di->next_sub) + if (id >= (unsigned int) di->next_sub) return NULL; ++di->did_subs; @@ -2535,80 +3334,191 @@ d_substitution (struct d_info *di, int prefix) } } -/* Resize the print buffer. */ +/* Initialize a growable string. */ static void -d_print_resize (struct d_print_info *dpi, size_t add) +d_growable_string_init (struct d_growable_string *dgs, size_t estimate) { - size_t need; + dgs->buf = NULL; + dgs->len = 0; + dgs->alc = 0; + dgs->allocation_failure = 0; + + if (estimate > 0) + d_growable_string_resize (dgs, estimate); +} + +/* Grow a growable string to a given size. */ + +static inline void +d_growable_string_resize (struct d_growable_string *dgs, size_t need) +{ + size_t newalc; + char *newbuf; - if (dpi->buf == NULL) + if (dgs->allocation_failure) return; - need = dpi->len + add; - while (need > dpi->alc) - { - size_t newalc; - char *newbuf; - newalc = dpi->alc * 2; - newbuf = realloc (dpi->buf, newalc); - if (newbuf == NULL) - { - free (dpi->buf); - dpi->buf = NULL; - dpi->allocation_failure = 1; - return; - } - dpi->buf = newbuf; - dpi->alc = newalc; + /* Start allocation at two bytes to avoid any possibility of confusion + with the special value of 1 used as a return in *palc to indicate + allocation failures. */ + newalc = dgs->alc > 0 ? dgs->alc : 2; + while (newalc < need) + newalc <<= 1; + + newbuf = (char *) realloc (dgs->buf, newalc); + if (newbuf == NULL) + { + free (dgs->buf); + dgs->buf = NULL; + dgs->len = 0; + dgs->alc = 0; + dgs->allocation_failure = 1; + return; } + dgs->buf = newbuf; + dgs->alc = newalc; } -/* Append a character to the print buffer. */ +/* Append a buffer to a growable string. */ -static void -d_print_append_char (struct d_print_info *dpi, int c) +static inline void +d_growable_string_append_buffer (struct d_growable_string *dgs, + const char *s, size_t l) { - if (dpi->buf != NULL) - { - if (dpi->len >= dpi->alc) - { - d_print_resize (dpi, 1); - if (dpi->buf == NULL) - return; - } + size_t need; - dpi->buf[dpi->len] = c; - ++dpi->len; - } + need = dgs->len + l + 1; + if (need > dgs->alc) + d_growable_string_resize (dgs, need); + + if (dgs->allocation_failure) + return; + + memcpy (dgs->buf + dgs->len, s, l); + dgs->buf[dgs->len + l] = '\0'; + dgs->len += l; } -/* Append a buffer to the print buffer. */ +/* Bridge growable strings to the callback mechanism. */ static void -d_print_append_buffer (struct d_print_info *dpi, const char *s, size_t l) +d_growable_string_callback_adapter (const char *s, size_t l, void *opaque) { - if (dpi->buf != NULL) - { - if (dpi->len + l > dpi->alc) - { - d_print_resize (dpi, l); - if (dpi->buf == NULL) - return; - } + struct d_growable_string *dgs = (struct d_growable_string*) opaque; - memcpy (dpi->buf + dpi->len, s, l); - dpi->len += l; - } + d_growable_string_append_buffer (dgs, s, l); } -/* Indicate that an error occurred during printing. */ +/* Initialize a print information structure. */ static void +d_print_init (struct d_print_info *dpi, demangle_callbackref callback, + void *opaque) +{ + dpi->len = 0; + dpi->last_char = '\0'; + dpi->templates = NULL; + dpi->modifiers = NULL; + dpi->pack_index = 0; + dpi->flush_count = 0; + + dpi->callback = callback; + dpi->opaque = opaque; + + dpi->demangle_failure = 0; +} + +/* Indicate that an error occurred during printing, and test for error. */ + +static inline void d_print_error (struct d_print_info *dpi) { - free (dpi->buf); - dpi->buf = NULL; + dpi->demangle_failure = 1; +} + +static inline int +d_print_saw_error (struct d_print_info *dpi) +{ + return dpi->demangle_failure != 0; +} + +/* Flush buffered characters to the callback. */ + +static inline void +d_print_flush (struct d_print_info *dpi) +{ + dpi->buf[dpi->len] = '\0'; + dpi->callback (dpi->buf, dpi->len, dpi->opaque); + dpi->len = 0; + dpi->flush_count++; +} + +/* Append characters and buffers for printing. */ + +static inline void +d_append_char (struct d_print_info *dpi, char c) +{ + if (dpi->len == sizeof (dpi->buf) - 1) + d_print_flush (dpi); + + dpi->buf[dpi->len++] = c; + dpi->last_char = c; +} + +static inline void +d_append_buffer (struct d_print_info *dpi, const char *s, size_t l) +{ + size_t i; + + for (i = 0; i < l; i++) + d_append_char (dpi, s[i]); +} + +static inline void +d_append_string (struct d_print_info *dpi, const char *s) +{ + d_append_buffer (dpi, s, strlen (s)); +} + +static inline void +d_append_num (struct d_print_info *dpi, long l) +{ + char buf[25]; + sprintf (buf,"%ld", l); + d_append_string (dpi, buf); +} + +static inline char +d_last_char (struct d_print_info *dpi) +{ + return dpi->last_char; +} + +/* Turn components into a human readable string. OPTIONS is the + options bits passed to the demangler. DC is the tree to print. + CALLBACK is a function to call to flush demangled string segments + as they fill the intermediate buffer, and OPAQUE is a generalized + callback argument. On success, this returns 1. On failure, + it returns 0, indicating a bad parse. It does not use heap + memory to build an output string, so cannot encounter memory + allocation failure. */ + +CP_STATIC_IF_GLIBCPP_V3 +int +cplus_demangle_print_callback (int options, + const struct demangle_component *dc, + demangle_callbackref callback, void *opaque) +{ + struct d_print_info dpi; + + d_print_init (&dpi, callback, opaque); + + d_print_comp (&dpi, options, dc); + + d_print_flush (&dpi); + + return ! d_print_saw_error (&dpi); } /* Turn components into a human readable string. OPTIONS is the @@ -2624,42 +3534,153 @@ char * cplus_demangle_print (int options, const struct demangle_component *dc, int estimate, size_t *palc) { - struct d_print_info dpi; + struct d_growable_string dgs; + + d_growable_string_init (&dgs, estimate); + + if (! cplus_demangle_print_callback (options, dc, + d_growable_string_callback_adapter, + &dgs)) + { + free (dgs.buf); + *palc = 0; + return NULL; + } + + *palc = dgs.allocation_failure ? 1 : dgs.alc; + return dgs.buf; +} + +/* Returns the I'th element of the template arglist ARGS, or NULL on + failure. */ + +static struct demangle_component * +d_index_template_argument (struct demangle_component *args, int i) +{ + struct demangle_component *a; + + for (a = args; + a != NULL; + a = d_right (a)) + { + if (a->type != DEMANGLE_COMPONENT_TEMPLATE_ARGLIST) + return NULL; + if (i <= 0) + break; + --i; + } + if (i != 0 || a == NULL) + return NULL; + + return d_left (a); +} + +/* Returns the template argument from the current context indicated by DC, + which is a DEMANGLE_COMPONENT_TEMPLATE_PARAM, or NULL. */ + +static struct demangle_component * +d_lookup_template_argument (struct d_print_info *dpi, + const struct demangle_component *dc) +{ + if (dpi->templates == NULL) + { + d_print_error (dpi); + return NULL; + } + + return d_index_template_argument + (d_right (dpi->templates->template_decl), + dc->u.s_number.number); +} - dpi.options = options; +/* Returns a template argument pack used in DC (any will do), or NULL. */ + +static struct demangle_component * +d_find_pack (struct d_print_info *dpi, + const struct demangle_component *dc) +{ + struct demangle_component *a; + if (dc == NULL) + return NULL; - dpi.alc = estimate + 1; - dpi.buf = malloc (dpi.alc); - if (dpi.buf == NULL) + switch (dc->type) { - *palc = 1; + case DEMANGLE_COMPONENT_TEMPLATE_PARAM: + a = d_lookup_template_argument (dpi, dc); + if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST) + return a; + return NULL; + + case DEMANGLE_COMPONENT_PACK_EXPANSION: + return NULL; + + case DEMANGLE_COMPONENT_LAMBDA: + case DEMANGLE_COMPONENT_NAME: + case DEMANGLE_COMPONENT_OPERATOR: + case DEMANGLE_COMPONENT_BUILTIN_TYPE: + case DEMANGLE_COMPONENT_SUB_STD: + case DEMANGLE_COMPONENT_CHARACTER: + case DEMANGLE_COMPONENT_FUNCTION_PARAM: return NULL; - } - dpi.len = 0; - dpi.templates = NULL; - dpi.modifiers = NULL; + case DEMANGLE_COMPONENT_EXTENDED_OPERATOR: + return d_find_pack (dpi, dc->u.s_extended_operator.name); + case DEMANGLE_COMPONENT_CTOR: + return d_find_pack (dpi, dc->u.s_ctor.name); + case DEMANGLE_COMPONENT_DTOR: + return d_find_pack (dpi, dc->u.s_dtor.name); - dpi.allocation_failure = 0; + default: + a = d_find_pack (dpi, d_left (dc)); + if (a) + return a; + return d_find_pack (dpi, d_right (dc)); + } +} - d_print_comp (&dpi, dc); +/* Returns the length of the template argument pack DC. */ - d_append_char (&dpi, '\0'); +static int +d_pack_length (const struct demangle_component *dc) +{ + int count = 0; + while (dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST + && d_left (dc) != NULL) + { + ++count; + dc = d_right (dc); + } + return count; +} - if (dpi.buf != NULL) - *palc = dpi.alc; - else - *palc = dpi.allocation_failure; +/* DC is a component of a mangled expression. Print it, wrapped in parens + if needed. */ - return dpi.buf; +static void +d_print_subexpr (struct d_print_info *dpi, int options, + const struct demangle_component *dc) +{ + int simple = 0; + if (dc->type == DEMANGLE_COMPONENT_NAME + || dc->type == DEMANGLE_COMPONENT_FUNCTION_PARAM) + simple = 1; + if (!simple) + d_append_char (dpi, '('); + d_print_comp (dpi, options, dc); + if (!simple) + d_append_char (dpi, ')'); } /* Subroutine to handle components. */ static void -d_print_comp (struct d_print_info *dpi, +d_print_comp (struct d_print_info *dpi, int options, const struct demangle_component *dc) { + /* Magic variable to let reference smashing skip over the next modifier + without needing to modify *dc. */ + const struct demangle_component *mod_inner = NULL; + if (dc == NULL) { d_print_error (dpi); @@ -2671,7 +3692,7 @@ d_print_comp (struct d_print_info *dpi, switch (dc->type) { case DEMANGLE_COMPONENT_NAME: - if ((dpi->options & DMGL_JAVA) == 0) + if ((options & DMGL_JAVA) == 0) d_append_buffer (dpi, dc->u.s_name.s, dc->u.s_name.len); else d_print_java_identifier (dpi, dc->u.s_name.s, dc->u.s_name.len); @@ -2679,12 +3700,12 @@ d_print_comp (struct d_print_info *dpi, case DEMANGLE_COMPONENT_QUAL_NAME: case DEMANGLE_COMPONENT_LOCAL_NAME: - d_print_comp (dpi, d_left (dc)); - if ((dpi->options & DMGL_JAVA) == 0) - d_append_string_constant (dpi, "::"); + d_print_comp (dpi, options, d_left (dc)); + if ((options & DMGL_JAVA) == 0) + d_append_string (dpi, "::"); else d_append_char (dpi, '.'); - d_print_comp (dpi, d_right (dc)); + d_print_comp (dpi, options, d_right (dc)); return; case DEMANGLE_COMPONENT_TYPED_NAME: @@ -2699,6 +3720,7 @@ d_print_comp (struct d_print_info *dpi, the right place for the type. We also have to pass down any CV-qualifiers, which apply to the this parameter. */ hold_modifiers = dpi->modifiers; + dpi->modifiers = 0; i = 0; typed_name = d_left (dc); while (typed_name != NULL) @@ -2724,13 +3746,19 @@ d_print_comp (struct d_print_info *dpi, typed_name = d_left (typed_name); } + if (typed_name == NULL) + { + d_print_error (dpi); + return; + } + /* If typed_name is a template, then it applies to the function type as well. */ if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE) { dpt.next = dpi->templates; dpi->templates = &dpt; - dpt.template = typed_name; + dpt.template_decl = typed_name; } /* If typed_name is a DEMANGLE_COMPONENT_LOCAL_NAME, then @@ -2742,6 +3770,8 @@ d_print_comp (struct d_print_info *dpi, struct demangle_component *local_name; local_name = d_right (typed_name); + if (local_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG) + local_name = local_name->u.s_unary_num.sub; while (local_name->type == DEMANGLE_COMPONENT_RESTRICT_THIS || local_name->type == DEMANGLE_COMPONENT_VOLATILE_THIS || local_name->type == DEMANGLE_COMPONENT_CONST_THIS) @@ -2765,7 +3795,7 @@ d_print_comp (struct d_print_info *dpi, } } - d_print_comp (dpi, d_right (dc)); + d_print_comp (dpi, options, d_right (dc)); if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE) dpi->templates = dpt.next; @@ -2778,7 +3808,7 @@ d_print_comp (struct d_print_info *dpi, if (! adpm[i].printed) { d_append_char (dpi, ' '); - d_print_mod (dpi, adpm[i].mod); + d_print_mod (dpi, options, adpm[i].mod); } } @@ -2790,6 +3820,7 @@ d_print_comp (struct d_print_info *dpi, case DEMANGLE_COMPONENT_TEMPLATE: { struct d_print_mod *hold_dpm; + struct demangle_component *dcl; /* Don't push modifiers into a template definition. Doing so could give the wrong definition for a template argument. @@ -2798,16 +3829,32 @@ d_print_comp (struct d_print_info *dpi, hold_dpm = dpi->modifiers; dpi->modifiers = NULL; - d_print_comp (dpi, d_left (dc)); - if (d_last_char (dpi) == '<') - d_append_char (dpi, ' '); - d_append_char (dpi, '<'); - d_print_comp (dpi, d_right (dc)); - /* Avoid generating two consecutive '>' characters, to avoid - the C++ syntactic ambiguity. */ - if (d_last_char (dpi) == '>') - d_append_char (dpi, ' '); - d_append_char (dpi, '>'); + dcl = d_left (dc); + + if ((options & DMGL_JAVA) != 0 + && dcl->type == DEMANGLE_COMPONENT_NAME + && dcl->u.s_name.len == 6 + && strncmp (dcl->u.s_name.s, "JArray", 6) == 0) + { + /* Special-case Java arrays, so that JArray appears + instead as TYPE[]. */ + + d_print_comp (dpi, options, d_right (dc)); + d_append_string (dpi, "[]"); + } + else + { + d_print_comp (dpi, options, dcl); + if (d_last_char (dpi) == '<') + d_append_char (dpi, ' '); + d_append_char (dpi, '<'); + d_print_comp (dpi, options, d_right (dc)); + /* Avoid generating two consecutive '>' characters, to avoid + the C++ syntactic ambiguity. */ + if (d_last_char (dpi) == '>') + d_append_char (dpi, ' '); + d_append_char (dpi, '>'); + } dpi->modifiers = hold_dpm; @@ -2816,30 +3863,13 @@ d_print_comp (struct d_print_info *dpi, case DEMANGLE_COMPONENT_TEMPLATE_PARAM: { - long i; - struct demangle_component *a; struct d_print_template *hold_dpt; + struct demangle_component *a = d_lookup_template_argument (dpi, dc); - if (dpi->templates == NULL) - { - d_print_error (dpi); - return; - } - i = dc->u.s_number.number; - for (a = d_right (dpi->templates->template); - a != NULL; - a = d_right (a)) - { - if (a->type != DEMANGLE_COMPONENT_TEMPLATE_ARGLIST) - { - d_print_error (dpi); - return; - } - if (i <= 0) - break; - --i; - } - if (i != 0 || a == NULL) + if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST) + a = d_index_template_argument (a, dpi->pack_index); + + if (a == NULL) { d_print_error (dpi); return; @@ -2853,7 +3883,7 @@ d_print_comp (struct d_print_info *dpi, hold_dpt = dpi->templates; dpi->templates = hold_dpt->next; - d_print_comp (dpi, d_left (a)); + d_print_comp (dpi, options, a); dpi->templates = hold_dpt; @@ -2861,74 +3891,91 @@ d_print_comp (struct d_print_info *dpi, } case DEMANGLE_COMPONENT_CTOR: - d_print_comp (dpi, dc->u.s_ctor.name); + d_print_comp (dpi, options, dc->u.s_ctor.name); return; case DEMANGLE_COMPONENT_DTOR: d_append_char (dpi, '~'); - d_print_comp (dpi, dc->u.s_dtor.name); + d_print_comp (dpi, options, dc->u.s_dtor.name); return; case DEMANGLE_COMPONENT_VTABLE: - d_append_string_constant (dpi, "vtable for "); - d_print_comp (dpi, d_left (dc)); + d_append_string (dpi, "vtable for "); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_VTT: - d_append_string_constant (dpi, "VTT for "); - d_print_comp (dpi, d_left (dc)); + d_append_string (dpi, "VTT for "); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE: - d_append_string_constant (dpi, "construction vtable for "); - d_print_comp (dpi, d_left (dc)); - d_append_string_constant (dpi, "-in-"); - d_print_comp (dpi, d_right (dc)); + d_append_string (dpi, "construction vtable for "); + d_print_comp (dpi, options, d_left (dc)); + d_append_string (dpi, "-in-"); + d_print_comp (dpi, options, d_right (dc)); return; case DEMANGLE_COMPONENT_TYPEINFO: - d_append_string_constant (dpi, "typeinfo for "); - d_print_comp (dpi, d_left (dc)); + d_append_string (dpi, "typeinfo for "); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_TYPEINFO_NAME: - d_append_string_constant (dpi, "typeinfo name for "); - d_print_comp (dpi, d_left (dc)); + d_append_string (dpi, "typeinfo name for "); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_TYPEINFO_FN: - d_append_string_constant (dpi, "typeinfo fn for "); - d_print_comp (dpi, d_left (dc)); + d_append_string (dpi, "typeinfo fn for "); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_THUNK: - d_append_string_constant (dpi, "non-virtual thunk to "); - d_print_comp (dpi, d_left (dc)); + d_append_string (dpi, "non-virtual thunk to "); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_VIRTUAL_THUNK: - d_append_string_constant (dpi, "virtual thunk to "); - d_print_comp (dpi, d_left (dc)); + d_append_string (dpi, "virtual thunk to "); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_COVARIANT_THUNK: - d_append_string_constant (dpi, "covariant return thunk to "); - d_print_comp (dpi, d_left (dc)); + d_append_string (dpi, "covariant return thunk to "); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_JAVA_CLASS: - d_append_string_constant (dpi, "java Class for "); - d_print_comp (dpi, d_left (dc)); + d_append_string (dpi, "java Class for "); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_GUARD: - d_append_string_constant (dpi, "guard variable for "); - d_print_comp (dpi, d_left (dc)); + d_append_string (dpi, "guard variable for "); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_REFTEMP: - d_append_string_constant (dpi, "reference temporary for "); - d_print_comp (dpi, d_left (dc)); + d_append_string (dpi, "reference temporary #"); + d_print_comp (dpi, options, d_right (dc)); + d_append_string (dpi, " for "); + d_print_comp (dpi, options, d_left (dc)); + return; + + case DEMANGLE_COMPONENT_HIDDEN_ALIAS: + d_append_string (dpi, "hidden alias for "); + d_print_comp (dpi, options, d_left (dc)); + return; + + case DEMANGLE_COMPONENT_TRANSACTION_CLONE: + d_append_string (dpi, "transaction clone for "); + d_print_comp (dpi, options, d_left (dc)); + return; + + case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE: + d_append_string (dpi, "non-transaction clone for "); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_SUB_STD: @@ -2955,21 +4002,50 @@ d_print_comp (struct d_print_info *dpi, break; if (pdpm->mod->type == dc->type) { - d_print_comp (dpi, d_left (dc)); + d_print_comp (dpi, options, d_left (dc)); return; } } } } + goto modifier; + + case DEMANGLE_COMPONENT_REFERENCE: + case DEMANGLE_COMPONENT_RVALUE_REFERENCE: + { + /* Handle reference smashing: & + && = &. */ + const struct demangle_component *sub = d_left (dc); + if (sub->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM) + { + struct demangle_component *a = d_lookup_template_argument (dpi, sub); + if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST) + a = d_index_template_argument (a, dpi->pack_index); + + if (a == NULL) + { + d_print_error (dpi); + return; + } + + sub = a; + } + + if (sub->type == DEMANGLE_COMPONENT_REFERENCE + || sub->type == dc->type) + dc = sub; + else if (sub->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE) + mod_inner = d_left (sub); + } /* Fall through. */ + case DEMANGLE_COMPONENT_RESTRICT_THIS: case DEMANGLE_COMPONENT_VOLATILE_THIS: case DEMANGLE_COMPONENT_CONST_THIS: case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL: case DEMANGLE_COMPONENT_POINTER: - case DEMANGLE_COMPONENT_REFERENCE: case DEMANGLE_COMPONENT_COMPLEX: case DEMANGLE_COMPONENT_IMAGINARY: + modifier: { /* We keep a list of modifiers on the stack. */ struct d_print_mod dpm; @@ -2980,12 +4056,15 @@ d_print_comp (struct d_print_info *dpi, dpm.printed = 0; dpm.templates = dpi->templates; - d_print_comp (dpi, d_left (dc)); + if (!mod_inner) + mod_inner = d_left (dc); + + d_print_comp (dpi, options, mod_inner); /* If the modifier didn't get printed by the type, print it now. */ if (! dpm.printed) - d_print_mod (dpi, dc); + d_print_mod (dpi, options, dc); dpi->modifiers = dpm.next; @@ -2993,7 +4072,7 @@ d_print_comp (struct d_print_info *dpi, } case DEMANGLE_COMPONENT_BUILTIN_TYPE: - if ((dpi->options & DMGL_JAVA) == 0) + if ((options & DMGL_JAVA) == 0) d_append_buffer (dpi, dc->u.s_builtin.type->name, dc->u.s_builtin.type->len); else @@ -3002,35 +4081,50 @@ d_print_comp (struct d_print_info *dpi, return; case DEMANGLE_COMPONENT_VENDOR_TYPE: - d_print_comp (dpi, d_left (dc)); + d_print_comp (dpi, options, d_left (dc)); return; case DEMANGLE_COMPONENT_FUNCTION_TYPE: { - if (d_left (dc) != NULL) + if ((options & DMGL_RET_POSTFIX) != 0) + d_print_function_type (dpi, + options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP), + dc, dpi->modifiers); + + /* Print return type if present */ + if (d_left (dc) != NULL && (options & DMGL_RET_POSTFIX) != 0) + d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP), + d_left (dc)); + else if (d_left (dc) != NULL && (options & DMGL_RET_DROP) == 0) { struct d_print_mod dpm; /* We must pass this type down as a modifier in order to print it in the right location. */ - dpm.next = dpi->modifiers; dpi->modifiers = &dpm; dpm.mod = dc; dpm.printed = 0; dpm.templates = dpi->templates; - d_print_comp (dpi, d_left (dc)); + d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP), + d_left (dc)); dpi->modifiers = dpm.next; if (dpm.printed) return; - d_append_char (dpi, ' '); + /* In standard prefix notation, there is a space between the + return type and the function signature. */ + if ((options & DMGL_RET_POSTFIX) == 0) + d_append_char (dpi, ' '); } - d_print_function_type (dpi, dc, dpi->modifiers); + if ((options & DMGL_RET_POSTFIX) == 0) + d_print_function_type (dpi, + options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP), + dc, dpi->modifiers); return; } @@ -3083,7 +4177,7 @@ d_print_comp (struct d_print_info *dpi, pdpm = pdpm->next; } - d_print_comp (dpi, d_right (dc)); + d_print_comp (dpi, options, d_right (dc)); dpi->modifiers = hold_modifiers; @@ -3093,15 +4187,16 @@ d_print_comp (struct d_print_info *dpi, while (i > 1) { --i; - d_print_mod (dpi, adpm[i].mod); + d_print_mod (dpi, options, adpm[i].mod); } - d_print_array_type (dpi, dc, dpi->modifiers); + d_print_array_type (dpi, options, dc, dpi->modifiers); return; } case DEMANGLE_COMPONENT_PTRMEM_TYPE: + case DEMANGLE_COMPONENT_VECTOR_TYPE: { struct d_print_mod dpm; @@ -3111,29 +4206,54 @@ d_print_comp (struct d_print_info *dpi, dpm.printed = 0; dpm.templates = dpi->templates; - d_print_comp (dpi, d_right (dc)); + d_print_comp (dpi, options, d_right (dc)); /* If the modifier didn't get printed by the type, print it now. */ if (! dpm.printed) - { - d_append_char (dpi, ' '); - d_print_comp (dpi, d_left (dc)); - d_append_string_constant (dpi, "::*"); - } + d_print_mod (dpi, options, dc); dpi->modifiers = dpm.next; return; } + case DEMANGLE_COMPONENT_FIXED_TYPE: + if (dc->u.s_fixed.sat) + d_append_string (dpi, "_Sat "); + /* Don't print "int _Accum". */ + if (dc->u.s_fixed.length->u.s_builtin.type + != &cplus_demangle_builtin_types['i'-'a']) + { + d_print_comp (dpi, options, dc->u.s_fixed.length); + d_append_char (dpi, ' '); + } + if (dc->u.s_fixed.accum) + d_append_string (dpi, "_Accum"); + else + d_append_string (dpi, "_Fract"); + return; + case DEMANGLE_COMPONENT_ARGLIST: case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST: - d_print_comp (dpi, d_left (dc)); + if (d_left (dc) != NULL) + d_print_comp (dpi, options, d_left (dc)); if (d_right (dc) != NULL) { - d_append_string_constant (dpi, ", "); - d_print_comp (dpi, d_right (dc)); + size_t len; + unsigned long int flush_count; + /* Make sure ", " isn't flushed by d_append_string, otherwise + dpi->len -= 2 wouldn't work. */ + if (dpi->len >= sizeof (dpi->buf) - 2) + d_print_flush (dpi); + d_append_string (dpi, ", "); + len = dpi->len; + flush_count = dpi->flush_count; + d_print_comp (dpi, options, d_right (dc)); + /* If that didn't print anything (which can happen with empty + template argument packs), remove the comma and space. */ + if (dpi->flush_count == flush_count && dpi->len == len) + dpi->len -= 2; } return; @@ -3141,7 +4261,7 @@ d_print_comp (struct d_print_info *dpi, { char c; - d_append_string_constant (dpi, "operator"); + d_append_string (dpi, "operator"); c = dc->u.s_operator.op->name[0]; if (IS_LOWER (c)) d_append_char (dpi, ' '); @@ -3151,27 +4271,64 @@ d_print_comp (struct d_print_info *dpi, } case DEMANGLE_COMPONENT_EXTENDED_OPERATOR: - d_append_string_constant (dpi, "operator "); - d_print_comp (dpi, dc->u.s_extended_operator.name); + d_append_string (dpi, "operator "); + d_print_comp (dpi, options, dc->u.s_extended_operator.name); return; case DEMANGLE_COMPONENT_CAST: - d_append_string_constant (dpi, "operator "); - d_print_cast (dpi, dc); + d_append_string (dpi, "operator "); + d_print_cast (dpi, options, dc); return; case DEMANGLE_COMPONENT_UNARY: - if (d_left (dc)->type != DEMANGLE_COMPONENT_CAST) - d_print_expr_op (dpi, d_left (dc)); + if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR + && d_left (dc)->u.s_operator.op->len == 1 + && d_left (dc)->u.s_operator.op->name[0] == '&' + && d_right (dc)->type == DEMANGLE_COMPONENT_TYPED_NAME + && d_left (d_right (dc))->type == DEMANGLE_COMPONENT_QUAL_NAME + && d_right (d_right (dc))->type == DEMANGLE_COMPONENT_FUNCTION_TYPE) + { + /* Address of a function (therefore in an expression context) must + have its argument list suppressed. + + unary operator ... dc + operator & ... d_left (dc) + typed name ... d_right (dc) + qualified name ... d_left (d_right (dc)) + + function type ... d_right (d_right (dc)) + argument list + */ + + d_print_expr_op (dpi, options, d_left (dc)); + d_print_comp (dpi, options, d_left (d_right (dc))); + return; + } + else if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR + && d_left (dc)->u.s_operator.op->len == 1 + && d_left (dc)->u.s_operator.op->name[0] == '&' + && d_right (dc)->type == DEMANGLE_COMPONENT_QUAL_NAME) + { + /* Keep also already processed variant without the argument list. + + unary operator ... dc + operator & ... d_left (dc) + qualified name ... d_right (dc) + */ + + d_print_expr_op (dpi, options, d_left (dc)); + d_print_comp (dpi, options, d_right (dc)); + return; + } + else if (d_left (dc)->type != DEMANGLE_COMPONENT_CAST) + d_print_expr_op (dpi, options, d_left (dc)); else { d_append_char (dpi, '('); - d_print_cast (dpi, d_left (dc)); + d_print_cast (dpi, options, d_left (dc)); d_append_char (dpi, ')'); } - d_append_char (dpi, '('); - d_print_comp (dpi, d_right (dc)); - d_append_char (dpi, ')'); + d_print_subexpr (dpi, options, d_right (dc)); return; case DEMANGLE_COMPONENT_BINARY: @@ -3189,13 +4346,33 @@ d_print_comp (struct d_print_info *dpi, && d_left (dc)->u.s_operator.op->name[0] == '>') d_append_char (dpi, '('); - d_append_char (dpi, '('); - d_print_comp (dpi, d_left (d_right (dc))); - d_append_string_constant (dpi, ") "); - d_print_expr_op (dpi, d_left (dc)); - d_append_string_constant (dpi, " ("); - d_print_comp (dpi, d_right (d_right (dc))); - d_append_char (dpi, ')'); + if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") == 0 + && d_left (d_right (dc))->type == DEMANGLE_COMPONENT_TYPED_NAME) + { + /* Function call used in an expression should not have printed types + of the function arguments. Values of the function arguments still + get printed below. */ + + const struct demangle_component *func = d_left (d_right (dc)); + + if (d_right (func)->type != DEMANGLE_COMPONENT_FUNCTION_TYPE) + d_print_error (dpi); + d_print_subexpr (dpi, options, d_left (func)); + } + else + d_print_subexpr (dpi, options, d_left (d_right (dc))); + if (strcmp (d_left (dc)->u.s_operator.op->code, "ix") == 0) + { + d_append_char (dpi, '['); + d_print_comp (dpi, options, d_right (d_right (dc))); + d_append_char (dpi, ']'); + } + else + { + if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") != 0) + d_print_expr_op (dpi, options, d_left (dc)); + d_print_subexpr (dpi, options, d_right (d_right (dc))); + } if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR && d_left (dc)->u.s_operator.op->len == 1 @@ -3216,15 +4393,11 @@ d_print_comp (struct d_print_info *dpi, d_print_error (dpi); return; } - d_append_char (dpi, '('); - d_print_comp (dpi, d_left (d_right (dc))); - d_append_string_constant (dpi, ") "); - d_print_expr_op (dpi, d_left (dc)); - d_append_string_constant (dpi, " ("); - d_print_comp (dpi, d_left (d_right (d_right (dc)))); - d_append_string_constant (dpi, ") : ("); - d_print_comp (dpi, d_right (d_right (d_right (dc)))); - d_append_char (dpi, ')'); + d_print_subexpr (dpi, options, d_left (d_right (dc))); + d_print_expr_op (dpi, options, d_left (dc)); + d_print_subexpr (dpi, options, d_left (d_right (d_right (dc)))); + d_append_string (dpi, " : "); + d_print_subexpr (dpi, options, d_right (d_right (d_right (dc)))); return; case DEMANGLE_COMPONENT_TRINARY_ARG1: @@ -3255,7 +4428,7 @@ d_print_comp (struct d_print_info *dpi, { if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG) d_append_char (dpi, '-'); - d_print_comp (dpi, d_right (dc)); + d_print_comp (dpi, options, d_right (dc)); switch (tp) { default: @@ -3267,13 +4440,13 @@ d_print_comp (struct d_print_info *dpi, d_append_char (dpi, 'l'); break; case D_PRINT_UNSIGNED_LONG: - d_append_string_constant (dpi, "ul"); + d_append_string (dpi, "ul"); break; case D_PRINT_LONG_LONG: - d_append_string_constant (dpi, "ll"); + d_append_string (dpi, "ll"); break; case D_PRINT_UNSIGNED_LONG_LONG: - d_append_string_constant (dpi, "ull"); + d_append_string (dpi, "ull"); break; } return; @@ -3288,10 +4461,10 @@ d_print_comp (struct d_print_info *dpi, switch (d_right (dc)->u.s_name.s[0]) { case '0': - d_append_string_constant (dpi, "false"); + d_append_string (dpi, "false"); return; case '1': - d_append_string_constant (dpi, "true"); + d_append_string (dpi, "true"); return; default: break; @@ -3305,18 +4478,114 @@ d_print_comp (struct d_print_info *dpi, } d_append_char (dpi, '('); - d_print_comp (dpi, d_left (dc)); + d_print_comp (dpi, options, d_left (dc)); d_append_char (dpi, ')'); if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG) d_append_char (dpi, '-'); if (tp == D_PRINT_FLOAT) d_append_char (dpi, '['); - d_print_comp (dpi, d_right (dc)); + d_print_comp (dpi, options, d_right (dc)); if (tp == D_PRINT_FLOAT) d_append_char (dpi, ']'); } return; + case DEMANGLE_COMPONENT_NUMBER: + d_append_num (dpi, dc->u.s_number.number); + return; + + case DEMANGLE_COMPONENT_JAVA_RESOURCE: + d_append_string (dpi, "java resource "); + d_print_comp (dpi, options, d_left (dc)); + return; + + case DEMANGLE_COMPONENT_COMPOUND_NAME: + d_print_comp (dpi, options, d_left (dc)); + d_print_comp (dpi, options, d_right (dc)); + return; + + case DEMANGLE_COMPONENT_CHARACTER: + d_append_char (dpi, dc->u.s_character.character); + return; + + case DEMANGLE_COMPONENT_DECLTYPE: + d_append_string (dpi, "decltype ("); + d_print_comp (dpi, options, d_left (dc)); + d_append_char (dpi, ')'); + return; + + case DEMANGLE_COMPONENT_PACK_EXPANSION: + { + int len; + int i; + struct demangle_component *a = d_find_pack (dpi, d_left (dc)); + if (a == NULL) + { + /* d_find_pack won't find anything if the only packs involved + in this expansion are function parameter packs; in that + case, just print the pattern and "...". */ + d_print_subexpr (dpi, options, d_left (dc)); + d_append_string (dpi, "..."); + return; + } + + len = d_pack_length (a); + dc = d_left (dc); + for (i = 0; i < len; ++i) + { + dpi->pack_index = i; + d_print_comp (dpi, options, dc); + if (i < len-1) + d_append_string (dpi, ", "); + } + } + return; + + case DEMANGLE_COMPONENT_FUNCTION_PARAM: + { + long num = dc->u.s_number.number; + if (num == 0) + d_append_string (dpi, "this"); + else + { + d_append_string (dpi, "{parm#"); + d_append_num (dpi, num); + d_append_char (dpi, '}'); + } + } + return; + + case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS: + d_append_string (dpi, "global constructors keyed to "); + d_print_comp (dpi, options, dc->u.s_binary.left); + return; + + case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS: + d_append_string (dpi, "global destructors keyed to "); + d_print_comp (dpi, options, dc->u.s_binary.left); + return; + + case DEMANGLE_COMPONENT_LAMBDA: + d_append_string (dpi, "{lambda("); + d_print_comp (dpi, options, dc->u.s_unary_num.sub); + d_append_string (dpi, ")#"); + d_append_num (dpi, dc->u.s_unary_num.num + 1); + d_append_char (dpi, '}'); + return; + + case DEMANGLE_COMPONENT_UNNAMED_TYPE: + d_append_string (dpi, "{unnamed type#"); + d_append_num (dpi, dc->u.s_number.number + 1); + d_append_char (dpi, '}'); + return; + + case DEMANGLE_COMPONENT_CLONE: + d_print_comp (dpi, options, d_left (dc)); + d_append_string (dpi, " [clone "); + d_print_comp (dpi, options, d_right (dc)); + d_append_char (dpi, ']'); + return; + default: d_print_error (dpi); return; @@ -3379,7 +4648,7 @@ d_print_java_identifier (struct d_print_info *dpi, const char *name, int len) qualifiers on this after printing a function. */ static void -d_print_mod_list (struct d_print_info *dpi, +d_print_mod_list (struct d_print_info *dpi, int options, struct d_print_mod *mods, int suffix) { struct d_print_template *hold_dpt; @@ -3393,7 +4662,7 @@ d_print_mod_list (struct d_print_info *dpi, || mods->mod->type == DEMANGLE_COMPONENT_VOLATILE_THIS || mods->mod->type == DEMANGLE_COMPONENT_CONST_THIS))) { - d_print_mod_list (dpi, mods->next, suffix); + d_print_mod_list (dpi, options, mods->next, suffix); return; } @@ -3404,13 +4673,13 @@ d_print_mod_list (struct d_print_info *dpi, if (mods->mod->type == DEMANGLE_COMPONENT_FUNCTION_TYPE) { - d_print_function_type (dpi, mods->mod, mods->next); + d_print_function_type (dpi, options, mods->mod, mods->next); dpi->templates = hold_dpt; return; } else if (mods->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE) { - d_print_array_type (dpi, mods->mod, mods->next); + d_print_array_type (dpi, options, mods->mod, mods->next); dpi->templates = hold_dpt; return; } @@ -3426,84 +4695,102 @@ d_print_mod_list (struct d_print_info *dpi, hold_modifiers = dpi->modifiers; dpi->modifiers = NULL; - d_print_comp (dpi, d_left (mods->mod)); + d_print_comp (dpi, options, d_left (mods->mod)); dpi->modifiers = hold_modifiers; - if ((dpi->options & DMGL_JAVA) == 0) - d_append_string_constant (dpi, "::"); + if ((options & DMGL_JAVA) == 0) + d_append_string (dpi, "::"); else d_append_char (dpi, '.'); dc = d_right (mods->mod); + + if (dc->type == DEMANGLE_COMPONENT_DEFAULT_ARG) + { + d_append_string (dpi, "{default arg#"); + d_append_num (dpi, dc->u.s_unary_num.num + 1); + d_append_string (dpi, "}::"); + dc = dc->u.s_unary_num.sub; + } + while (dc->type == DEMANGLE_COMPONENT_RESTRICT_THIS || dc->type == DEMANGLE_COMPONENT_VOLATILE_THIS || dc->type == DEMANGLE_COMPONENT_CONST_THIS) dc = d_left (dc); - d_print_comp (dpi, dc); + d_print_comp (dpi, options, dc); dpi->templates = hold_dpt; return; } - d_print_mod (dpi, mods->mod); + d_print_mod (dpi, options, mods->mod); dpi->templates = hold_dpt; - d_print_mod_list (dpi, mods->next, suffix); + d_print_mod_list (dpi, options, mods->next, suffix); } /* Print a modifier. */ static void -d_print_mod (struct d_print_info *dpi, +d_print_mod (struct d_print_info *dpi, int options, const struct demangle_component *mod) { switch (mod->type) { case DEMANGLE_COMPONENT_RESTRICT: case DEMANGLE_COMPONENT_RESTRICT_THIS: - d_append_string_constant (dpi, " restrict"); + d_append_string (dpi, " restrict"); return; case DEMANGLE_COMPONENT_VOLATILE: case DEMANGLE_COMPONENT_VOLATILE_THIS: - d_append_string_constant (dpi, " volatile"); + d_append_string (dpi, " volatile"); return; case DEMANGLE_COMPONENT_CONST: case DEMANGLE_COMPONENT_CONST_THIS: - d_append_string_constant (dpi, " const"); + d_append_string (dpi, " const"); return; case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL: d_append_char (dpi, ' '); - d_print_comp (dpi, d_right (mod)); + d_print_comp (dpi, options, d_right (mod)); return; case DEMANGLE_COMPONENT_POINTER: /* There is no pointer symbol in Java. */ - if ((dpi->options & DMGL_JAVA) == 0) + if ((options & DMGL_JAVA) == 0) d_append_char (dpi, '*'); return; case DEMANGLE_COMPONENT_REFERENCE: d_append_char (dpi, '&'); return; + case DEMANGLE_COMPONENT_RVALUE_REFERENCE: + d_append_string (dpi, "&&"); + return; case DEMANGLE_COMPONENT_COMPLEX: - d_append_string_constant (dpi, "complex "); + d_append_string (dpi, "complex "); return; case DEMANGLE_COMPONENT_IMAGINARY: - d_append_string_constant (dpi, "imaginary "); + d_append_string (dpi, "imaginary "); return; case DEMANGLE_COMPONENT_PTRMEM_TYPE: if (d_last_char (dpi) != '(') d_append_char (dpi, ' '); - d_print_comp (dpi, d_left (mod)); - d_append_string_constant (dpi, "::*"); + d_print_comp (dpi, options, d_left (mod)); + d_append_string (dpi, "::*"); return; case DEMANGLE_COMPONENT_TYPED_NAME: - d_print_comp (dpi, d_left (mod)); + d_print_comp (dpi, options, d_left (mod)); + return; + case DEMANGLE_COMPONENT_VECTOR_TYPE: + d_append_string (dpi, " __vector("); + d_print_comp (dpi, options, d_left (mod)); + d_append_char (dpi, ')'); return; + default: /* Otherwise, we have something that won't go back on the modifier stack, so we can just print it. */ - d_print_comp (dpi, mod); + d_print_comp (dpi, options, mod); return; } } @@ -3511,29 +4798,27 @@ d_print_mod (struct d_print_info *dpi, /* Print a function type, except for the return type. */ static void -d_print_function_type (struct d_print_info *dpi, +d_print_function_type (struct d_print_info *dpi, int options, const struct demangle_component *dc, struct d_print_mod *mods) { int need_paren; - int saw_mod; int need_space; struct d_print_mod *p; struct d_print_mod *hold_modifiers; need_paren = 0; - saw_mod = 0; need_space = 0; for (p = mods; p != NULL; p = p->next) { if (p->printed) break; - saw_mod = 1; switch (p->mod->type) { case DEMANGLE_COMPONENT_POINTER: case DEMANGLE_COMPONENT_REFERENCE: + case DEMANGLE_COMPONENT_RVALUE_REFERENCE: need_paren = 1; break; case DEMANGLE_COMPONENT_RESTRICT: @@ -3557,9 +4842,6 @@ d_print_function_type (struct d_print_info *dpi, break; } - if (d_left (dc) != NULL && ! saw_mod) - need_paren = 1; - if (need_paren) { if (! need_space) @@ -3576,7 +4858,7 @@ d_print_function_type (struct d_print_info *dpi, hold_modifiers = dpi->modifiers; dpi->modifiers = NULL; - d_print_mod_list (dpi, mods, 0); + d_print_mod_list (dpi, options, mods, 0); if (need_paren) d_append_char (dpi, ')'); @@ -3584,11 +4866,11 @@ d_print_function_type (struct d_print_info *dpi, d_append_char (dpi, '('); if (d_right (dc) != NULL) - d_print_comp (dpi, d_right (dc)); + d_print_comp (dpi, options, d_right (dc)); d_append_char (dpi, ')'); - d_print_mod_list (dpi, mods, 1); + d_print_mod_list (dpi, options, mods, 1); dpi->modifiers = hold_modifiers; } @@ -3596,7 +4878,7 @@ d_print_function_type (struct d_print_info *dpi, /* Print an array type, except for the element type. */ static void -d_print_array_type (struct d_print_info *dpi, +d_print_array_type (struct d_print_info *dpi, int options, const struct demangle_component *dc, struct d_print_mod *mods) { @@ -3628,9 +4910,9 @@ d_print_array_type (struct d_print_info *dpi, } if (need_paren) - d_append_string_constant (dpi, " ("); + d_append_string (dpi, " ("); - d_print_mod_list (dpi, mods, 0); + d_print_mod_list (dpi, options, mods, 0); if (need_paren) d_append_char (dpi, ')'); @@ -3642,7 +4924,7 @@ d_print_array_type (struct d_print_info *dpi, d_append_char (dpi, '['); if (d_left (dc) != NULL) - d_print_comp (dpi, d_left (dc)); + d_print_comp (dpi, options, d_left (dc)); d_append_char (dpi, ']'); } @@ -3650,24 +4932,24 @@ d_print_array_type (struct d_print_info *dpi, /* Print an operator in an expression. */ static void -d_print_expr_op (struct d_print_info *dpi, +d_print_expr_op (struct d_print_info *dpi, int options, const struct demangle_component *dc) { if (dc->type == DEMANGLE_COMPONENT_OPERATOR) d_append_buffer (dpi, dc->u.s_operator.op->name, dc->u.s_operator.op->len); else - d_print_comp (dpi, dc); + d_print_comp (dpi, options, dc); } /* Print a cast. */ static void -d_print_cast (struct d_print_info *dpi, +d_print_cast (struct d_print_info *dpi, int options, const struct demangle_component *dc) { if (d_left (dc)->type != DEMANGLE_COMPONENT_TEMPLATE) - d_print_comp (dpi, d_left (dc)); + d_print_comp (dpi, options, d_left (dc)); else { struct d_print_mod *hold_dpm; @@ -3683,16 +4965,16 @@ d_print_cast (struct d_print_info *dpi, dpt.next = dpi->templates; dpi->templates = &dpt; - dpt.template = d_left (dc); + dpt.template_decl = d_left (dc); - d_print_comp (dpi, d_left (d_left (dc))); + d_print_comp (dpi, options, d_left (d_left (dc))); dpi->templates = dpt.next; if (d_last_char (dpi) == '<') d_append_char (dpi, ' '); d_append_char (dpi, '<'); - d_print_comp (dpi, d_right (d_left (dc))); + d_print_comp (dpi, options, d_right (d_left (dc))); /* Avoid generating two consecutive '>' characters, to avoid the C++ syntactic ambiguity. */ if (d_last_char (dpi) == '>') @@ -3734,85 +5016,75 @@ cplus_demangle_init_info (const char *mangled, int options, size_t len, di->expansion = 0; } -/* Entry point for the demangler. If MANGLED is a g++ v3 ABI mangled - name, return a buffer allocated with malloc holding the demangled - name. OPTIONS is the usual libiberty demangler options. On - success, this sets *PALC to the allocated size of the returned - buffer. On failure, this sets *PALC to 0 for a bad name, or 1 for - a memory allocation failure. On failure, this returns NULL. */ +/* Internal implementation for the demangler. If MANGLED is a g++ v3 ABI + mangled name, return strings in repeated callback giving the demangled + name. OPTIONS is the usual libiberty demangler options. On success, + this returns 1. On failure, returns 0. */ -static char * -d_demangle (const char* mangled, int options, size_t *palc) +static int +d_demangle_callback (const char *mangled, int options, + demangle_callbackref callback, void *opaque) { - size_t len; - int type; + enum + { + DCT_TYPE, + DCT_MANGLED, + DCT_GLOBAL_CTORS, + DCT_GLOBAL_DTORS + } + type; struct d_info di; struct demangle_component *dc; - int estimate; - char *ret; - - *palc = 0; - - len = strlen (mangled); + int status; if (mangled[0] == '_' && mangled[1] == 'Z') - type = 0; + type = DCT_MANGLED; else if (strncmp (mangled, "_GLOBAL_", 8) == 0 && (mangled[8] == '.' || mangled[8] == '_' || mangled[8] == '$') && (mangled[9] == 'D' || mangled[9] == 'I') && mangled[10] == '_') - { - char *r; - - r = malloc (40 + len - 11); - if (r == NULL) - *palc = 1; - else - { - if (mangled[9] == 'I') - strcpy (r, "global constructors keyed to "); - else - strcpy (r, "global destructors keyed to "); - strcat (r, mangled + 11); - } - return r; - } + type = mangled[9] == 'I' ? DCT_GLOBAL_CTORS : DCT_GLOBAL_DTORS; else { if ((options & DMGL_TYPES) == 0) - return NULL; - type = 1; + return 0; + type = DCT_TYPE; } - cplus_demangle_init_info (mangled, options, len, &di); + cplus_demangle_init_info (mangled, options, strlen (mangled), &di); { #ifdef CP_DYNAMIC_ARRAYS __extension__ struct demangle_component comps[di.num_comps]; __extension__ struct demangle_component *subs[di.num_subs]; - di.comps = &comps[0]; - di.subs = &subs[0]; + di.comps = comps; + di.subs = subs; #else - di.comps = ((struct demangle_component *) - malloc (di.num_comps * sizeof (struct demangle_component))); - di.subs = ((struct demangle_component **) - malloc (di.num_subs * sizeof (struct demangle_component *))); - if (di.comps == NULL || di.subs == NULL) - { - if (di.comps != NULL) - free (di.comps); - if (di.subs != NULL) - free (di.subs); - *palc = 1; - return NULL; - } + di.comps = alloca (di.num_comps * sizeof (*di.comps)); + di.subs = alloca (di.num_subs * sizeof (*di.subs)); #endif - if (! type) - dc = cplus_demangle_mangled_name (&di, 1); - else - dc = cplus_demangle_type (&di); + switch (type) + { + case DCT_TYPE: + dc = cplus_demangle_type (&di); + break; + case DCT_MANGLED: + dc = cplus_demangle_mangled_name (&di, 1); + break; + case DCT_GLOBAL_CTORS: + case DCT_GLOBAL_DTORS: + d_advance (&di, 11); + dc = d_make_comp (&di, + (type == DCT_GLOBAL_CTORS + ? DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS + : DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS), + d_make_demangle_mangled_name (&di, d_str (&di)), + NULL); + d_advance (&di, strlen (d_str (&di))); + break; + } /* If DMGL_PARAMS is set, then if we didn't consume the entire mangled string, then we didn't successfully demangle it. If @@ -3822,46 +5094,43 @@ d_demangle (const char* mangled, int options, size_t *palc) dc = NULL; #ifdef CP_DEMANGLE_DEBUG - if (dc == NULL) - printf ("failed demangling\n"); - else - d_dump (dc, 0); + d_dump (dc, 0); #endif - /* We try to guess the length of the demangled string, to minimize - calls to realloc during demangling. */ - estimate = len + di.expansion + 10 * di.did_subs; - estimate += estimate / 8; + status = (dc != NULL) + ? cplus_demangle_print_callback (options, dc, callback, opaque) + : 0; + } + + return status; +} - ret = NULL; - if (dc != NULL) - ret = cplus_demangle_print (options, dc, estimate, palc); +/* Entry point for the demangler. If MANGLED is a g++ v3 ABI mangled + name, return a buffer allocated with malloc holding the demangled + name. OPTIONS is the usual libiberty demangler options. On + success, this sets *PALC to the allocated size of the returned + buffer. On failure, this sets *PALC to 0 for a bad name, or 1 for + a memory allocation failure, and returns NULL. */ -#ifndef CP_DYNAMIC_ARRAYS - free (di.comps); - free (di.subs); -#endif +static char * +d_demangle (const char *mangled, int options, size_t *palc) +{ + struct d_growable_string dgs; + int status; -#ifdef CP_DEMANGLE_DEBUG - if (ret != NULL) - { - int rlen; - - rlen = strlen (ret); - if (rlen > 2 * estimate) - printf ("*** Length %d much greater than estimate %d\n", - rlen, estimate); - else if (rlen > estimate) - printf ("*** Length %d greater than estimate %d\n", - rlen, estimate); - else if (rlen < estimate / 2) - printf ("*** Length %d much less than estimate %d\n", - rlen, estimate); - } -#endif - } + d_growable_string_init (&dgs, 0); - return ret; + status = d_demangle_callback (mangled, options, + d_growable_string_callback_adapter, &dgs); + if (status == 0) + { + free (dgs.buf); + *palc = 0; + return NULL; + } + + *palc = dgs.allocation_failure ? 1 : dgs.alc; + return dgs.buf; } #if defined(IN_LIBGCC2) || defined(IN_GLIBCPP_V3) @@ -3878,7 +5147,7 @@ extern char *__cxa_demangle (const char *, char *, size_t *, int *); OUTPUT_BUFFER may instead be NULL; in that case, the demangled name is placed in a region of memory allocated with malloc. - If LENGTH is non-NULL, the length of the buffer conaining the + If LENGTH is non-NULL, the length of the buffer containing the demangled name, is placed in *LENGTH. The return value is a pointer to the start of the NUL-terminated @@ -3955,6 +5224,48 @@ __cxa_demangle (const char *mangled_name, char *output_buffer, return demangled; } +extern int __gcclibcxx_demangle_callback (const char *, + void (*) + (const char *, size_t, void *), + void *); + +/* Alternative, allocationless entry point in the C++ runtime library + for performing demangling. MANGLED_NAME is a NUL-terminated character + string containing the name to be demangled. + + CALLBACK is a callback function, called with demangled string + segments as demangling progresses; it is called at least once, + but may be called more than once. OPAQUE is a generalized pointer + used as a callback argument. + + The return code is one of the following values, equivalent to + the STATUS values of __cxa_demangle() (excluding -1, since this + function performs no memory allocations): + 0: The demangling operation succeeded. + -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules. + -3: One of the arguments is invalid. + + The demangling is performed using the C++ ABI mangling rules, with + GNU extensions. */ + +int +__gcclibcxx_demangle_callback (const char *mangled_name, + void (*callback) (const char *, size_t, void *), + void *opaque) +{ + int status; + + if (mangled_name == NULL || callback == NULL) + return -3; + + status = d_demangle_callback (mangled_name, DMGL_PARAMS | DMGL_TYPES, + callback, opaque); + if (status == 0) + return -2; + + return 0; +} + #else /* ! (IN_LIBGCC2 || IN_GLIBCPP_V3) */ /* Entry point for libiberty demangler. If MANGLED is a g++ v3 ABI @@ -3962,60 +5273,41 @@ __cxa_demangle (const char *mangled_name, char *output_buffer, demangled name. Otherwise, return NULL. */ char * -cplus_demangle_v3 (const char* mangled, int options) +cplus_demangle_v3 (const char *mangled, int options) { size_t alc; return d_demangle (mangled, options, &alc); } +int +cplus_demangle_v3_callback (const char *mangled, int options, + demangle_callbackref callback, void *opaque) +{ + return d_demangle_callback (mangled, options, callback, opaque); +} + /* Demangle a Java symbol. Java uses a subset of the V3 ABI C++ mangling conventions, but the output formatting is a little different. - This instructs the C++ demangler not to emit pointer characters ("*"), and - to use Java's namespace separator symbol ("." instead of "::"). It then - does an additional pass over the demangled output to replace instances - of JArray with TYPE[]. */ + This instructs the C++ demangler not to emit pointer characters ("*"), to + use Java's namespace separator symbol ("." instead of "::"), and to output + JArray as TYPE[]. */ char * -java_demangle_v3 (const char* mangled) +java_demangle_v3 (const char *mangled) { size_t alc; - char *demangled; - int nesting; - char *from; - char *to; - - demangled = d_demangle (mangled, DMGL_JAVA | DMGL_PARAMS, &alc); - - if (demangled == NULL) - return NULL; - - nesting = 0; - from = demangled; - to = from; - while (*from != '\0') - { - if (strncmp (from, "JArray<", 7) == 0) - { - from += 7; - ++nesting; - } - else if (nesting > 0 && *from == '>') - { - while (to > demangled && to[-1] == ' ') - --to; - *to++ = '['; - *to++ = ']'; - --nesting; - ++from; - } - else - *to++ = *from++; - } - *to = '\0'; + return d_demangle (mangled, DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX, &alc); +} - return demangled; +int +java_demangle_v3_callback (const char *mangled, + demangle_callbackref callback, void *opaque) +{ + return d_demangle_callback (mangled, + DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX, + callback, opaque); } #endif /* IN_LIBGCC2 || IN_GLIBCPP_V3 */ @@ -4045,21 +5337,11 @@ is_ctor_or_dtor (const char *mangled, __extension__ struct demangle_component comps[di.num_comps]; __extension__ struct demangle_component *subs[di.num_subs]; - di.comps = &comps[0]; - di.subs = &subs[0]; + di.comps = comps; + di.subs = subs; #else - di.comps = ((struct demangle_component *) - malloc (di.num_comps * sizeof (struct demangle_component))); - di.subs = ((struct demangle_component **) - malloc (di.num_subs * sizeof (struct demangle_component *))); - if (di.comps == NULL || di.subs == NULL) - { - if (di.comps != NULL) - free (di.comps); - if (di.subs != NULL) - free (di.subs); - return 0; - } + di.comps = alloca (di.num_comps * sizeof (*di.comps)); + di.subs = alloca (di.num_subs * sizeof (*di.subs)); #endif dc = cplus_demangle_mangled_name (&di, 1); @@ -4098,11 +5380,6 @@ is_ctor_or_dtor (const char *mangled, break; } } - -#ifndef CP_DYNAMIC_ARRAYS - free (di.subs); - free (di.comps); -#endif } return ret;