diff options
Diffstat (limited to 'libiberty/cplus-dem.c')
| -rw-r--r-- | libiberty/cplus-dem.c | 4586 |
1 files changed, 5 insertions, 4581 deletions
diff --git a/libiberty/cplus-dem.c b/libiberty/cplus-dem.c index 5346cbf..afceed2 100644 --- a/libiberty/cplus-dem.c +++ b/libiberty/cplus-dem.c @@ -29,12 +29,6 @@ License along with libiberty; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ -/* This file exports two functions; cplus_mangle_opname and cplus_demangle. - - This file imports xmalloc and xrealloc, which are like malloc and - realloc except that they generate a fatal error if there is no - available memory. */ - /* This file lives in both GCC and libiberty. When making changes, please try not to break either. */ @@ -44,9 +38,7 @@ Boston, MA 02110-1301, USA. */ #include "safe-ctype.h" -#include <sys/types.h> #include <string.h> -#include <stdio.h> #ifdef HAVE_STDLIB_H #include <stdlib.h> @@ -55,205 +47,14 @@ void * malloc (); void * realloc (); #endif -#ifdef HAVE_LIMITS_H -#include <limits.h> -#endif -#ifndef INT_MAX -# define INT_MAX (int)(((unsigned int) ~0) >> 1) /* 0x7FFFFFFF */ -#endif - #include <demangle.h> #undef CURRENT_DEMANGLING_STYLE -#define CURRENT_DEMANGLING_STYLE work->options +#define CURRENT_DEMANGLING_STYLE options #include "libiberty.h" -#define min(X,Y) (((X) < (Y)) ? (X) : (Y)) - -/* A value at least one greater than the maximum number of characters - that will be output when using the `%d' format with `printf'. */ -#define INTBUF_SIZE 32 - -extern void fancy_abort (void) ATTRIBUTE_NORETURN; - -/* In order to allow a single demangler executable to demangle strings - using various common values of CPLUS_MARKER, as well as any specific - one set at compile time, we maintain a string containing all the - commonly used ones, and check to see if the marker we are looking for - is in that string. CPLUS_MARKER is usually '$' on systems where the - assembler can deal with that. Where the assembler can't, it's usually - '.' (but on many systems '.' is used for other things). We put the - current defined CPLUS_MARKER first (which defaults to '$'), followed - by the next most common value, followed by an explicit '$' in case - the value of CPLUS_MARKER is not '$'. - - We could avoid this if we could just get g++ to tell us what the actual - cplus marker character is as part of the debug information, perhaps by - ensuring that it is the character that terminates the gcc<n>_compiled - marker symbol (FIXME). */ - -#if !defined (CPLUS_MARKER) -#define CPLUS_MARKER '$' -#endif - enum demangling_styles current_demangling_style = auto_demangling; -static char cplus_markers[] = { CPLUS_MARKER, '.', '$', '\0' }; - -static char char_str[2] = { '\000', '\000' }; - -void -set_cplus_marker_for_demangling (int ch) -{ - cplus_markers[0] = ch; -} - -typedef struct string /* Beware: these aren't required to be */ -{ /* '\0' terminated. */ - char *b; /* pointer to start of string */ - char *p; /* pointer after last character */ - char *e; /* pointer after end of allocated space */ -} string; - -/* Stuff that is shared between sub-routines. - Using a shared structure allows cplus_demangle to be reentrant. */ - -struct work_stuff -{ - int options; - char **typevec; - char **ktypevec; - char **btypevec; - int numk; - int numb; - int ksize; - int bsize; - int ntypes; - int typevec_size; - int constructor; - int destructor; - int static_type; /* A static member function */ - int temp_start; /* index in demangled to start of template args */ - int type_quals; /* The type qualifiers. */ - int dllimported; /* Symbol imported from a PE DLL */ - char **tmpl_argvec; /* Template function arguments. */ - int ntmpl_args; /* The number of template function arguments. */ - int forgetting_types; /* Nonzero if we are not remembering the types - we see. */ - string* previous_argument; /* The last function argument demangled. */ - int nrepeats; /* The number of times to repeat the previous - argument. */ - int *proctypevec; /* Indices of currently processed remembered typevecs. */ - int proctypevec_size; - int nproctypes; - unsigned int recursion_level; -}; - -#define PRINT_ANSI_QUALIFIERS (work -> options & DMGL_ANSI) -#define PRINT_ARG_TYPES (work -> options & DMGL_PARAMS) - -static const struct optable -{ - const char *const in; - const char *const out; - const int flags; -} optable[] = { - {"nw", " new", DMGL_ANSI}, /* new (1.92, ansi) */ - {"dl", " delete", DMGL_ANSI}, /* new (1.92, ansi) */ - {"new", " new", 0}, /* old (1.91, and 1.x) */ - {"delete", " delete", 0}, /* old (1.91, and 1.x) */ - {"vn", " new []", DMGL_ANSI}, /* GNU, pending ansi */ - {"vd", " delete []", DMGL_ANSI}, /* GNU, pending ansi */ - {"as", "=", DMGL_ANSI}, /* ansi */ - {"ne", "!=", DMGL_ANSI}, /* old, ansi */ - {"eq", "==", DMGL_ANSI}, /* old, ansi */ - {"ge", ">=", DMGL_ANSI}, /* old, ansi */ - {"gt", ">", DMGL_ANSI}, /* old, ansi */ - {"le", "<=", DMGL_ANSI}, /* old, ansi */ - {"lt", "<", DMGL_ANSI}, /* old, ansi */ - {"plus", "+", 0}, /* old */ - {"pl", "+", DMGL_ANSI}, /* ansi */ - {"apl", "+=", DMGL_ANSI}, /* ansi */ - {"minus", "-", 0}, /* old */ - {"mi", "-", DMGL_ANSI}, /* ansi */ - {"ami", "-=", DMGL_ANSI}, /* ansi */ - {"mult", "*", 0}, /* old */ - {"ml", "*", DMGL_ANSI}, /* ansi */ - {"amu", "*=", DMGL_ANSI}, /* ansi (ARM/Lucid) */ - {"aml", "*=", DMGL_ANSI}, /* ansi (GNU/g++) */ - {"convert", "+", 0}, /* old (unary +) */ - {"negate", "-", 0}, /* old (unary -) */ - {"trunc_mod", "%", 0}, /* old */ - {"md", "%", DMGL_ANSI}, /* ansi */ - {"amd", "%=", DMGL_ANSI}, /* ansi */ - {"trunc_div", "/", 0}, /* old */ - {"dv", "/", DMGL_ANSI}, /* ansi */ - {"adv", "/=", DMGL_ANSI}, /* ansi */ - {"truth_andif", "&&", 0}, /* old */ - {"aa", "&&", DMGL_ANSI}, /* ansi */ - {"truth_orif", "||", 0}, /* old */ - {"oo", "||", DMGL_ANSI}, /* ansi */ - {"truth_not", "!", 0}, /* old */ - {"nt", "!", DMGL_ANSI}, /* ansi */ - {"postincrement","++", 0}, /* old */ - {"pp", "++", DMGL_ANSI}, /* ansi */ - {"postdecrement","--", 0}, /* old */ - {"mm", "--", DMGL_ANSI}, /* ansi */ - {"bit_ior", "|", 0}, /* old */ - {"or", "|", DMGL_ANSI}, /* ansi */ - {"aor", "|=", DMGL_ANSI}, /* ansi */ - {"bit_xor", "^", 0}, /* old */ - {"er", "^", DMGL_ANSI}, /* ansi */ - {"aer", "^=", DMGL_ANSI}, /* ansi */ - {"bit_and", "&", 0}, /* old */ - {"ad", "&", DMGL_ANSI}, /* ansi */ - {"aad", "&=", DMGL_ANSI}, /* ansi */ - {"bit_not", "~", 0}, /* old */ - {"co", "~", DMGL_ANSI}, /* ansi */ - {"call", "()", 0}, /* old */ - {"cl", "()", DMGL_ANSI}, /* ansi */ - {"alshift", "<<", 0}, /* old */ - {"ls", "<<", DMGL_ANSI}, /* ansi */ - {"als", "<<=", DMGL_ANSI}, /* ansi */ - {"arshift", ">>", 0}, /* old */ - {"rs", ">>", DMGL_ANSI}, /* ansi */ - {"ars", ">>=", DMGL_ANSI}, /* ansi */ - {"component", "->", 0}, /* old */ - {"pt", "->", DMGL_ANSI}, /* ansi; Lucid C++ form */ - {"rf", "->", DMGL_ANSI}, /* ansi; ARM/GNU form */ - {"indirect", "*", 0}, /* old */ - {"method_call", "->()", 0}, /* old */ - {"addr", "&", 0}, /* old (unary &) */ - {"array", "[]", 0}, /* old */ - {"vc", "[]", DMGL_ANSI}, /* ansi */ - {"compound", ", ", 0}, /* old */ - {"cm", ", ", DMGL_ANSI}, /* ansi */ - {"cond", "?:", 0}, /* old */ - {"cn", "?:", DMGL_ANSI}, /* pseudo-ansi */ - {"max", ">?", 0}, /* old */ - {"mx", ">?", DMGL_ANSI}, /* pseudo-ansi */ - {"min", "<?", 0}, /* old */ - {"mn", "<?", DMGL_ANSI}, /* pseudo-ansi */ - {"nop", "", 0}, /* old (for operator=) */ - {"rm", "->*", DMGL_ANSI}, /* ansi */ - {"sz", "sizeof ", DMGL_ANSI} /* pseudo-ansi */ -}; - -/* These values are used to indicate the various type varieties. - They are all non-zero so that they can be used as `success' - values. */ -typedef enum type_kind_t -{ - tk_none, - tk_pointer, - tk_reference, - tk_rvalue_reference, - tk_integral, - tk_bool, - tk_char, - tk_real -} type_kind_t; - const struct demangler_engine libiberty_demanglers[] = { { @@ -269,39 +70,9 @@ const struct demangler_engine libiberty_demanglers[] = } , { - GNU_DEMANGLING_STYLE_STRING, - gnu_demangling, - "GNU (g++) style demangling" - } - , - { - LUCID_DEMANGLING_STYLE_STRING, - lucid_demangling, - "Lucid (lcc) style demangling" - } - , - { - ARM_DEMANGLING_STYLE_STRING, - arm_demangling, - "ARM style demangling" - } - , - { - HP_DEMANGLING_STYLE_STRING, - hp_demangling, - "HP (aCC) style demangling" - } - , - { - EDG_DEMANGLING_STYLE_STRING, - edg_demangling, - "EDG style demangling" - } - , - { GNU_V3_DEMANGLING_STYLE_STRING, gnu_v3_demangling, - "GNU (g++) V3 ABI-style demangling" + "GNU (g++) V3 (Itanium C++ ABI) style demangling" } , { @@ -333,474 +104,6 @@ const struct demangler_engine libiberty_demanglers[] = } }; -#define STRING_EMPTY(str) ((str) -> b == (str) -> p) -#define APPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ - string_append(str, " ");} -#define LEN_STRING(str) ( (STRING_EMPTY(str))?0:((str)->p - (str)->b)) - -/* The scope separator appropriate for the language being demangled. */ - -#define SCOPE_STRING(work) ((work->options & DMGL_JAVA) ? "." : "::") - -#define ARM_VTABLE_STRING "__vtbl__" /* Lucid/ARM virtual table prefix */ -#define ARM_VTABLE_STRLEN 8 /* strlen (ARM_VTABLE_STRING) */ - -/* Prototypes for local functions */ - -static void delete_work_stuff (struct work_stuff *); - -static void delete_non_B_K_work_stuff (struct work_stuff *); - -static char *mop_up (struct work_stuff *, string *, int); - -static void squangle_mop_up (struct work_stuff *); - -static void work_stuff_copy_to_from (struct work_stuff *, struct work_stuff *); - -#if 0 -static int -demangle_method_args (struct work_stuff *, const char **, string *); -#endif - -static char * -internal_cplus_demangle (struct work_stuff *, const char *); - -static int -demangle_template_template_parm (struct work_stuff *work, - const char **, string *); - -static int -demangle_template (struct work_stuff *work, const char **, string *, - string *, int, int); - -static int -arm_pt (struct work_stuff *, const char *, int, const char **, - const char **); - -static int -demangle_class_name (struct work_stuff *, const char **, string *); - -static int -demangle_qualified (struct work_stuff *, const char **, string *, - int, int); - -static int demangle_class (struct work_stuff *, const char **, string *); - -static int demangle_fund_type (struct work_stuff *, const char **, string *); - -static int demangle_signature (struct work_stuff *, const char **, string *); - -static int demangle_prefix (struct work_stuff *, const char **, string *); - -static int gnu_special (struct work_stuff *, const char **, string *); - -static int arm_special (const char **, string *); - -static void string_need (string *, int); - -static void string_delete (string *); - -static void -string_init (string *); - -static void string_clear (string *); - -#if 0 -static int string_empty (string *); -#endif - -static void string_append (string *, const char *); - -static void string_appends (string *, string *); - -static void string_appendn (string *, const char *, int); - -static void string_prepend (string *, const char *); - -static void string_prependn (string *, const char *, int); - -static void string_append_template_idx (string *, int); - -static int get_count (const char **, int *); - -static int consume_count (const char **); - -static int consume_count_with_underscores (const char**); - -static int demangle_args (struct work_stuff *, const char **, string *); - -static int demangle_nested_args (struct work_stuff*, const char**, string*); - -static int do_type (struct work_stuff *, const char **, string *); - -static int do_arg (struct work_stuff *, const char **, string *); - -static int -demangle_function_name (struct work_stuff *, const char **, string *, - const char *); - -static int -iterate_demangle_function (struct work_stuff *, - const char **, string *, const char *); - -static void remember_type (struct work_stuff *, const char *, int); - -static void push_processed_type (struct work_stuff *, int); - -static void pop_processed_type (struct work_stuff *); - -static void remember_Btype (struct work_stuff *, const char *, int, int); - -static int register_Btype (struct work_stuff *); - -static void remember_Ktype (struct work_stuff *, const char *, int); - -static void forget_types (struct work_stuff *); - -static void forget_B_and_K_types (struct work_stuff *); - -static void string_prepends (string *, string *); - -static int -demangle_template_value_parm (struct work_stuff*, const char**, - string*, type_kind_t); - -static int -do_hpacc_template_const_value (struct work_stuff *, const char **, string *); - -static int -do_hpacc_template_literal (struct work_stuff *, const char **, string *); - -static int snarf_numeric_literal (const char **, string *); - -/* There is a TYPE_QUAL value for each type qualifier. They can be - combined by bitwise-or to form the complete set of qualifiers for a - type. */ - -#define TYPE_UNQUALIFIED 0x0 -#define TYPE_QUAL_CONST 0x1 -#define TYPE_QUAL_VOLATILE 0x2 -#define TYPE_QUAL_RESTRICT 0x4 - -static int code_for_qualifier (int); - -static const char* qualifier_string (int); - -static const char* demangle_qualifier (int); - -static int demangle_expression (struct work_stuff *, const char **, string *, - type_kind_t); - -static int -demangle_integral_value (struct work_stuff *, const char **, string *); - -static int -demangle_real_value (struct work_stuff *, const char **, string *); - -static void -demangle_arm_hp_template (struct work_stuff *, const char **, int, string *); - -static void -recursively_demangle (struct work_stuff *, const char **, string *, int); - -/* Translate count to integer, consuming tokens in the process. - Conversion terminates on the first non-digit character. - - Trying to consume something that isn't a count results in no - consumption of input and a return of -1. - - Overflow consumes the rest of the digits, and returns -1. */ - -static int -consume_count (const char **type) -{ - int count = 0; - - if (! ISDIGIT ((unsigned char)**type)) - return -1; - - while (ISDIGIT ((unsigned char)**type)) - { - const int digit = **type - '0'; - /* Check for overflow. */ - if (count > ((INT_MAX - digit) / 10)) - { - while (ISDIGIT ((unsigned char) **type)) - (*type)++; - return -1; - } - - count *= 10; - count += digit; - (*type)++; - } - - if (count < 0) - count = -1; - - return (count); -} - - -/* Like consume_count, but for counts that are preceded and followed - by '_' if they are greater than 10. Also, -1 is returned for - failure, since 0 can be a valid value. */ - -static int -consume_count_with_underscores (const char **mangled) -{ - int idx; - - if (**mangled == '_') - { - (*mangled)++; - if (!ISDIGIT ((unsigned char)**mangled)) - return -1; - - idx = consume_count (mangled); - if (**mangled != '_') - /* The trailing underscore was missing. */ - return -1; - - (*mangled)++; - } - else - { - if (**mangled < '0' || **mangled > '9') - return -1; - - idx = **mangled - '0'; - (*mangled)++; - } - - return idx; -} - -/* C is the code for a type-qualifier. Return the TYPE_QUAL - corresponding to this qualifier. */ - -static int -code_for_qualifier (int c) -{ - switch (c) - { - case 'C': - return TYPE_QUAL_CONST; - - case 'V': - return TYPE_QUAL_VOLATILE; - - case 'u': - return TYPE_QUAL_RESTRICT; - - default: - break; - } - - /* C was an invalid qualifier. */ - abort (); -} - -/* Return the string corresponding to the qualifiers given by - TYPE_QUALS. */ - -static const char* -qualifier_string (int type_quals) -{ - switch (type_quals) - { - case TYPE_UNQUALIFIED: - return ""; - - case TYPE_QUAL_CONST: - return "const"; - - case TYPE_QUAL_VOLATILE: - return "volatile"; - - case TYPE_QUAL_RESTRICT: - return "__restrict"; - - case TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE: - return "const volatile"; - - case TYPE_QUAL_CONST | TYPE_QUAL_RESTRICT: - return "const __restrict"; - - case TYPE_QUAL_VOLATILE | TYPE_QUAL_RESTRICT: - return "volatile __restrict"; - - case TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE | TYPE_QUAL_RESTRICT: - return "const volatile __restrict"; - - default: - break; - } - - /* TYPE_QUALS was an invalid qualifier set. */ - abort (); -} - -/* C is the code for a type-qualifier. Return the string - corresponding to this qualifier. This function should only be - called with a valid qualifier code. */ - -static const char* -demangle_qualifier (int c) -{ - return qualifier_string (code_for_qualifier (c)); -} - -int -cplus_demangle_opname (const char *opname, char *result, int options) -{ - int len, len1, ret; - string type; - struct work_stuff work[1]; - const char *tem; - - len = strlen(opname); - result[0] = '\0'; - ret = 0; - memset ((char *) work, 0, sizeof (work)); - work->options = options; - - if (opname[0] == '_' && opname[1] == '_' - && opname[2] == 'o' && opname[3] == 'p') - { - /* ANSI. */ - /* type conversion operator. */ - tem = opname + 4; - if (do_type (work, &tem, &type)) - { - strcat (result, "operator "); - strncat (result, type.b, type.p - type.b); - string_delete (&type); - ret = 1; - } - } - else if (opname[0] == '_' && opname[1] == '_' - && ISLOWER((unsigned char)opname[2]) - && ISLOWER((unsigned char)opname[3])) - { - if (opname[4] == '\0') - { - /* Operator. */ - size_t i; - for (i = 0; i < ARRAY_SIZE (optable); i++) - { - if (strlen (optable[i].in) == 2 - && memcmp (optable[i].in, opname + 2, 2) == 0) - { - strcat (result, "operator"); - strcat (result, optable[i].out); - ret = 1; - break; - } - } - } - else - { - if (opname[2] == 'a' && opname[5] == '\0') - { - /* Assignment. */ - size_t i; - for (i = 0; i < ARRAY_SIZE (optable); i++) - { - if (strlen (optable[i].in) == 3 - && memcmp (optable[i].in, opname + 2, 3) == 0) - { - strcat (result, "operator"); - strcat (result, optable[i].out); - ret = 1; - break; - } - } - } - } - } - else if (len >= 3 - && opname[0] == 'o' - && opname[1] == 'p' - && strchr (cplus_markers, opname[2]) != NULL) - { - /* see if it's an assignment expression */ - if (len >= 10 /* op$assign_ */ - && memcmp (opname + 3, "assign_", 7) == 0) - { - size_t i; - for (i = 0; i < ARRAY_SIZE (optable); i++) - { - len1 = len - 10; - if ((int) strlen (optable[i].in) == len1 - && memcmp (optable[i].in, opname + 10, len1) == 0) - { - strcat (result, "operator"); - strcat (result, optable[i].out); - strcat (result, "="); - ret = 1; - break; - } - } - } - else - { - size_t i; - for (i = 0; i < ARRAY_SIZE (optable); i++) - { - len1 = len - 3; - if ((int) strlen (optable[i].in) == len1 - && memcmp (optable[i].in, opname + 3, len1) == 0) - { - strcat (result, "operator"); - strcat (result, optable[i].out); - ret = 1; - break; - } - } - } - } - else if (len >= 5 && memcmp (opname, "type", 4) == 0 - && strchr (cplus_markers, opname[4]) != NULL) - { - /* type conversion operator */ - tem = opname + 5; - if (do_type (work, &tem, &type)) - { - strcat (result, "operator "); - strncat (result, type.b, type.p - type.b); - string_delete (&type); - ret = 1; - } - } - squangle_mop_up (work); - return ret; - -} - -/* Takes operator name as e.g. "++" and returns mangled - operator name (e.g. "postincrement_expr"), or NULL if not found. - - If OPTIONS & DMGL_ANSI == 1, return the ANSI name; - if OPTIONS & DMGL_ANSI == 0, return the old GNU name. */ - -const char * -cplus_mangle_opname (const char *opname, int options) -{ - size_t i; - int len; - - len = strlen (opname); - for (i = 0; i < ARRAY_SIZE (optable); i++) - { - if ((int) strlen (optable[i].out) == len - && (options & DMGL_ANSI) == (optable[i].flags & DMGL_ANSI) - && memcmp (optable[i].out, opname, len) == 0) - return optable[i].in; - } - return (0); -} - /* Add a routine to set the demangling style to be sure it is valid and allow for any demangler initialization that maybe necessary. */ @@ -841,22 +144,6 @@ cplus_demangle_name_to_style (const char *name) It is the caller's responsibility to free the string which is returned. - The OPTIONS arg may contain one or more of the following bits: - - DMGL_ANSI ANSI qualifiers such as `const' and `void' are - included. - DMGL_PARAMS Function parameters are included. - - For example, - - cplus_demangle ("foo__1Ai", DMGL_PARAMS) => "A::foo(int)" - cplus_demangle ("foo__1Ai", DMGL_PARAMS | DMGL_ANSI) => "A::foo(int)" - cplus_demangle ("foo__1Ai", 0) => "A::foo" - - cplus_demangle ("foo__1Afe", DMGL_PARAMS) => "A::foo(float,...)" - cplus_demangle ("foo__1Afe", DMGL_PARAMS | DMGL_ANSI)=> "A::foo(float,...)" - cplus_demangle ("foo__1Afe", 0) => "A::foo" - Note that any leading underscores, or other such characters prepended by the compilation system, are presumed to have already been stripped from MANGLED. */ @@ -865,20 +152,17 @@ char * cplus_demangle (const char *mangled, int options) { char *ret; - struct work_stuff work[1]; if (current_demangling_style == no_demangling) return xstrdup (mangled); - memset ((char *) work, 0, sizeof (work)); - work->options = options; - if ((work->options & DMGL_STYLE_MASK) == 0) - work->options |= (int) current_demangling_style & DMGL_STYLE_MASK; + if ((options & DMGL_STYLE_MASK) == 0) + options |= (int) current_demangling_style & DMGL_STYLE_MASK; /* The V3 ABI demangling is implemented elsewhere. */ if (GNU_V3_DEMANGLING || RUST_DEMANGLING || AUTO_DEMANGLING) { - ret = cplus_demangle_v3 (mangled, work->options); + ret = cplus_demangle_v3 (mangled, options); if (GNU_V3_DEMANGLING) return ret; @@ -916,8 +200,6 @@ cplus_demangle (const char *mangled, int options) return ret; } - ret = internal_cplus_demangle (work, mangled); - squangle_mop_up (work); return (ret); } @@ -1206,3861 +488,3 @@ ada_demangle (const char *mangled, int option ATTRIBUTE_UNUSED) return demangled; } - -/* This function performs most of what cplus_demangle use to do, but - to be able to demangle a name with a B, K or n code, we need to - have a longer term memory of what types have been seen. The original - now initializes and cleans up the squangle code info, while internal - calls go directly to this routine to avoid resetting that info. */ - -static char * -internal_cplus_demangle (struct work_stuff *work, const char *mangled) -{ - - string decl; - int success = 0; - char *demangled = NULL; - int s1, s2, s3, s4; - s1 = work->constructor; - s2 = work->destructor; - s3 = work->static_type; - s4 = work->type_quals; - work->constructor = work->destructor = 0; - work->type_quals = TYPE_UNQUALIFIED; - work->dllimported = 0; - - if ((mangled != NULL) && (*mangled != '\0')) - { - string_init (&decl); - - /* First check to see if gnu style demangling is active and if the - string to be demangled contains a CPLUS_MARKER. If so, attempt to - recognize one of the gnu special forms rather than looking for a - standard prefix. In particular, don't worry about whether there - is a "__" string in the mangled string. Consider "_$_5__foo" for - example. */ - - if ((AUTO_DEMANGLING || GNU_DEMANGLING)) - { - success = gnu_special (work, &mangled, &decl); - if (!success) - { - delete_work_stuff (work); - string_delete (&decl); - } - } - if (!success) - { - success = demangle_prefix (work, &mangled, &decl); - } - if (success && (*mangled != '\0')) - { - success = demangle_signature (work, &mangled, &decl); - } - if (work->constructor == 2) - { - string_prepend (&decl, "global constructors keyed to "); - work->constructor = 0; - } - else if (work->destructor == 2) - { - string_prepend (&decl, "global destructors keyed to "); - work->destructor = 0; - } - else if (work->dllimported == 1) - { - string_prepend (&decl, "import stub for "); - work->dllimported = 0; - } - demangled = mop_up (work, &decl, success); - } - work->constructor = s1; - work->destructor = s2; - work->static_type = s3; - work->type_quals = s4; - return demangled; -} - - -/* Clear out and squangling related storage */ -static void -squangle_mop_up (struct work_stuff *work) -{ - /* clean up the B and K type mangling types. */ - forget_B_and_K_types (work); - if (work -> btypevec != NULL) - { - free ((char *) work -> btypevec); - work->btypevec = NULL; - work->bsize = 0; - work->numb = 0; - } - if (work -> ktypevec != NULL) - { - free ((char *) work -> ktypevec); - work->ktypevec = NULL; - work->ksize = 0; - work->numk = 0; - } -} - - -/* Copy the work state and storage. */ - -static void -work_stuff_copy_to_from (struct work_stuff *to, struct work_stuff *from) -{ - int i; - - delete_work_stuff (to); - - /* Shallow-copy scalars. */ - memcpy (to, from, sizeof (*to)); - - /* Deep-copy dynamic storage. */ - if (from->typevec_size) - to->typevec = XNEWVEC (char *, from->typevec_size); - - for (i = 0; i < from->ntypes; i++) - { - int len = strlen (from->typevec[i]) + 1; - - to->typevec[i] = XNEWVEC (char, len); - memcpy (to->typevec[i], from->typevec[i], len); - } - - if (from->ksize) - to->ktypevec = XNEWVEC (char *, from->ksize); - - for (i = 0; i < from->numk; i++) - { - int len; - - if (from->ktypevec[i] == NULL) - { - to->ktypevec[i] = NULL; - continue; - } - - len = strlen (from->ktypevec[i]) + 1; - to->ktypevec[i] = XNEWVEC (char, len); - memcpy (to->ktypevec[i], from->ktypevec[i], len); - } - - if (from->bsize) - to->btypevec = XNEWVEC (char *, from->bsize); - - for (i = 0; i < from->numb; i++) - { - int len; - - if (from->btypevec[i] == NULL) - { - to->btypevec[i] = NULL; - continue; - } - - len = strlen (from->btypevec[i]) + 1; - to->btypevec[i] = XNEWVEC (char , len); - memcpy (to->btypevec[i], from->btypevec[i], len); - } - - if (from->proctypevec) - to->proctypevec = - XDUPVEC (int, from->proctypevec, from->proctypevec_size); - - if (from->ntmpl_args) - to->tmpl_argvec = XNEWVEC (char *, from->ntmpl_args); - - for (i = 0; i < from->ntmpl_args; i++) - { - int len = strlen (from->tmpl_argvec[i]) + 1; - - to->tmpl_argvec[i] = XNEWVEC (char, len); - memcpy (to->tmpl_argvec[i], from->tmpl_argvec[i], len); - } - - if (from->previous_argument) - { - to->previous_argument = XNEW (string); - string_init (to->previous_argument); - string_appends (to->previous_argument, from->previous_argument); - } -} - - -/* Delete dynamic stuff in work_stuff that is not to be re-used. */ - -static void -delete_non_B_K_work_stuff (struct work_stuff *work) -{ - /* Discard the remembered types, if any. */ - - forget_types (work); - if (work->typevec != NULL) - { - free ((char *) work->typevec); - work->typevec = NULL; - work->typevec_size = 0; - } - if (work->proctypevec != NULL) - { - free (work->proctypevec); - work->proctypevec = NULL; - work->proctypevec_size = 0; - } - if (work->tmpl_argvec) - { - int i; - - for (i = 0; i < work->ntmpl_args; i++) - free ((char*) work->tmpl_argvec[i]); - - free ((char*) work->tmpl_argvec); - work->tmpl_argvec = NULL; - work->ntmpl_args = 0; - } - if (work->previous_argument) - { - string_delete (work->previous_argument); - free ((char*) work->previous_argument); - work->previous_argument = NULL; - } -} - - -/* Delete all dynamic storage in work_stuff. */ -static void -delete_work_stuff (struct work_stuff *work) -{ - delete_non_B_K_work_stuff (work); - squangle_mop_up (work); -} - - -/* Clear out any mangled storage */ - -static char * -mop_up (struct work_stuff *work, string *declp, int success) -{ - char *demangled = NULL; - - delete_non_B_K_work_stuff (work); - - /* If demangling was successful, ensure that the demangled string is null - terminated and return it. Otherwise, free the demangling decl. */ - - if (!success) - { - string_delete (declp); - } - else - { - string_appendn (declp, "", 1); - demangled = declp->b; - } - return (demangled); -} - -/* - -LOCAL FUNCTION - - demangle_signature -- demangle the signature part of a mangled name - -SYNOPSIS - - static int - demangle_signature (struct work_stuff *work, const char **mangled, - string *declp); - -DESCRIPTION - - Consume and demangle the signature portion of the mangled name. - - DECLP is the string where demangled output is being built. At - entry it contains the demangled root name from the mangled name - prefix. I.E. either a demangled operator name or the root function - name. In some special cases, it may contain nothing. - - *MANGLED points to the current unconsumed location in the mangled - name. As tokens are consumed and demangling is performed, the - pointer is updated to continuously point at the next token to - be consumed. - - Demangling GNU style mangled names is nasty because there is no - explicit token that marks the start of the outermost function - argument list. */ - -static int -demangle_signature (struct work_stuff *work, - const char **mangled, string *declp) -{ - int success = 1; - int func_done = 0; - int expect_func = 0; - int expect_return_type = 0; - const char *oldmangled = NULL; - string trawname; - string tname; - - while (success && (**mangled != '\0')) - { - switch (**mangled) - { - case 'Q': - oldmangled = *mangled; - success = demangle_qualified (work, mangled, declp, 1, 0); - if (success) - remember_type (work, oldmangled, *mangled - oldmangled); - if (AUTO_DEMANGLING || GNU_DEMANGLING) - expect_func = 1; - oldmangled = NULL; - break; - - case 'K': - oldmangled = *mangled; - success = demangle_qualified (work, mangled, declp, 1, 0); - if (AUTO_DEMANGLING || GNU_DEMANGLING) - { - expect_func = 1; - } - oldmangled = NULL; - break; - - case 'S': - /* Static member function */ - if (oldmangled == NULL) - { - oldmangled = *mangled; - } - (*mangled)++; - work -> static_type = 1; - break; - - case 'C': - case 'V': - case 'u': - work->type_quals |= code_for_qualifier (**mangled); - - /* a qualified member function */ - if (oldmangled == NULL) - oldmangled = *mangled; - (*mangled)++; - break; - - case 'L': - /* Local class name follows after "Lnnn_" */ - if (HP_DEMANGLING) - { - while (**mangled && (**mangled != '_')) - (*mangled)++; - if (!**mangled) - success = 0; - else - (*mangled)++; - } - else - success = 0; - break; - - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - if (oldmangled == NULL) - { - oldmangled = *mangled; - } - work->temp_start = -1; /* uppermost call to demangle_class */ - success = demangle_class (work, mangled, declp); - if (success) - { - remember_type (work, oldmangled, *mangled - oldmangled); - } - if (AUTO_DEMANGLING || GNU_DEMANGLING || EDG_DEMANGLING) - { - /* EDG and others will have the "F", so we let the loop cycle - if we are looking at one. */ - if (**mangled != 'F') - expect_func = 1; - } - oldmangled = NULL; - break; - - case 'B': - { - string s; - success = do_type (work, mangled, &s); - if (success) - { - string_append (&s, SCOPE_STRING (work)); - string_prepends (declp, &s); - string_delete (&s); - } - oldmangled = NULL; - expect_func = 1; - } - break; - - case 'F': - /* Function */ - /* ARM/HP style demangling includes a specific 'F' character after - the class name. For GNU style, it is just implied. So we can - safely just consume any 'F' at this point and be compatible - with either style. */ - - oldmangled = NULL; - func_done = 1; - (*mangled)++; - - /* For lucid/ARM/HP style we have to forget any types we might - have remembered up to this point, since they were not argument - types. GNU style considers all types seen as available for - back references. See comment in demangle_args() */ - - if (LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) - { - forget_types (work); - } - success = demangle_args (work, mangled, declp); - /* After picking off the function args, we expect to either - find the function return type (preceded by an '_') or the - end of the string. */ - if (success && (AUTO_DEMANGLING || EDG_DEMANGLING) && **mangled == '_') - { - ++(*mangled); - /* At this level, we do not care about the return type. */ - success = do_type (work, mangled, &tname); - string_delete (&tname); - } - - break; - - case 't': - /* G++ Template */ - string_init(&trawname); - string_init(&tname); - if (oldmangled == NULL) - { - oldmangled = *mangled; - } - success = demangle_template (work, mangled, &tname, - &trawname, 1, 1); - if (success) - { - remember_type (work, oldmangled, *mangled - oldmangled); - } - string_append (&tname, SCOPE_STRING (work)); - - string_prepends(declp, &tname); - if (work -> destructor & 1) - { - string_prepend (&trawname, "~"); - string_appends (declp, &trawname); - work->destructor -= 1; - } - if ((work->constructor & 1) || (work->destructor & 1)) - { - string_appends (declp, &trawname); - work->constructor -= 1; - } - string_delete(&trawname); - string_delete(&tname); - oldmangled = NULL; - expect_func = 1; - break; - - case '_': - if ((AUTO_DEMANGLING || GNU_DEMANGLING) && expect_return_type) - { - /* Read the return type. */ - string return_type; - - (*mangled)++; - success = do_type (work, mangled, &return_type); - APPEND_BLANK (&return_type); - - string_prepends (declp, &return_type); - string_delete (&return_type); - break; - } - else - /* At the outermost level, we cannot have a return type specified, - so if we run into another '_' at this point we are dealing with - a mangled name that is either bogus, or has been mangled by - some algorithm we don't know how to deal with. So just - reject the entire demangling. */ - /* However, "_nnn" is an expected suffix for alternate entry point - numbered nnn for a function, with HP aCC, so skip over that - without reporting failure. pai/1997-09-04 */ - if (HP_DEMANGLING) - { - (*mangled)++; - while (**mangled && ISDIGIT ((unsigned char)**mangled)) - (*mangled)++; - } - else - success = 0; - break; - - case 'H': - if (AUTO_DEMANGLING || GNU_DEMANGLING) - { - /* A G++ template function. Read the template arguments. */ - success = demangle_template (work, mangled, declp, 0, 0, - 0); - if (!(work->constructor & 1)) - expect_return_type = 1; - if (!**mangled) - success = 0; - else - (*mangled)++; - break; - } - /* fall through */ - - default: - if (AUTO_DEMANGLING || GNU_DEMANGLING) - { - /* Assume we have stumbled onto the first outermost function - argument token, and start processing args. */ - func_done = 1; - success = demangle_args (work, mangled, declp); - } - else - { - /* Non-GNU demanglers use a specific token to mark the start - of the outermost function argument tokens. Typically 'F', - for ARM/HP-demangling, for example. So if we find something - we are not prepared for, it must be an error. */ - success = 0; - } - break; - } - /* - if (AUTO_DEMANGLING || GNU_DEMANGLING) - */ - { - if (success && expect_func) - { - func_done = 1; - if (LUCID_DEMANGLING || ARM_DEMANGLING || EDG_DEMANGLING) - { - forget_types (work); - } - success = demangle_args (work, mangled, declp); - /* Since template include the mangling of their return types, - we must set expect_func to 0 so that we don't try do - demangle more arguments the next time we get here. */ - expect_func = 0; - } - } - } - if (success && !func_done) - { - if (AUTO_DEMANGLING || GNU_DEMANGLING) - { - /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and - bar__3fooi is 'foo::bar(int)'. We get here when we find the - first case, and need to ensure that the '(void)' gets added to - the current declp. Note that with ARM/HP, the first case - represents the name of a static data member 'foo::bar', - which is in the current declp, so we leave it alone. */ - success = demangle_args (work, mangled, declp); - } - } - if (success && PRINT_ARG_TYPES) - { - if (work->static_type) - string_append (declp, " static"); - if (work->type_quals != TYPE_UNQUALIFIED) - { - APPEND_BLANK (declp); - string_append (declp, qualifier_string (work->type_quals)); - } - } - - return (success); -} - -#if 0 - -static int -demangle_method_args (struct work_stuff *work, const char **mangled, - string *declp) -{ - int success = 0; - - if (work -> static_type) - { - string_append (declp, *mangled + 1); - *mangled += strlen (*mangled); - success = 1; - } - else - { - success = demangle_args (work, mangled, declp); - } - return (success); -} - -#endif - -static int -demangle_template_template_parm (struct work_stuff *work, - const char **mangled, string *tname) -{ - int i; - int r; - int need_comma = 0; - int success = 1; - string temp; - - string_append (tname, "template <"); - /* get size of template parameter list */ - if (get_count (mangled, &r)) - { - for (i = 0; i < r; i++) - { - if (need_comma) - { - string_append (tname, ", "); - } - - /* Z for type parameters */ - if (**mangled == 'Z') - { - (*mangled)++; - string_append (tname, "class"); - } - /* z for template parameters */ - else if (**mangled == 'z') - { - (*mangled)++; - success = - demangle_template_template_parm (work, mangled, tname); - if (!success) - { - break; - } - } - else - { - /* temp is initialized in do_type */ - success = do_type (work, mangled, &temp); - if (success) - { - string_appends (tname, &temp); - } - string_delete(&temp); - if (!success) - { - break; - } - } - need_comma = 1; - } - - } - if (tname->p[-1] == '>') - string_append (tname, " "); - string_append (tname, "> class"); - return (success); -} - -static int -demangle_expression (struct work_stuff *work, const char **mangled, - string *s, type_kind_t tk) -{ - int need_operator = 0; - int success; - - success = 1; - string_appendn (s, "(", 1); - (*mangled)++; - while (success && **mangled != 'W' && **mangled != '\0') - { - if (need_operator) - { - size_t i; - size_t len; - - success = 0; - - len = strlen (*mangled); - - for (i = 0; i < ARRAY_SIZE (optable); ++i) - { - size_t l = strlen (optable[i].in); - - if (l <= len - && memcmp (optable[i].in, *mangled, l) == 0) - { - string_appendn (s, " ", 1); - string_append (s, optable[i].out); - string_appendn (s, " ", 1); - success = 1; - (*mangled) += l; - break; - } - } - - if (!success) - break; - } - else - need_operator = 1; - - success = demangle_template_value_parm (work, mangled, s, tk); - } - - if (**mangled != 'W') - success = 0; - else - { - string_appendn (s, ")", 1); - (*mangled)++; - } - - return success; -} - -static int -demangle_integral_value (struct work_stuff *work, - const char **mangled, string *s) -{ - int success; - - if (**mangled == 'E') - success = demangle_expression (work, mangled, s, tk_integral); - else if (**mangled == 'Q' || **mangled == 'K') - success = demangle_qualified (work, mangled, s, 0, 1); - else - { - int value; - - /* By default, we let the number decide whether we shall consume an - underscore. */ - int multidigit_without_leading_underscore = 0; - int leave_following_underscore = 0; - - success = 0; - - if (**mangled == '_') - { - if (mangled[0][1] == 'm') - { - /* Since consume_count_with_underscores does not handle the - `m'-prefix we must do it here, using consume_count and - adjusting underscores: we have to consume the underscore - matching the prepended one. */ - multidigit_without_leading_underscore = 1; - string_appendn (s, "-", 1); - (*mangled) += 2; - } - else - { - /* Do not consume a following underscore; - consume_count_with_underscores will consume what - should be consumed. */ - leave_following_underscore = 1; - } - } - else - { - /* Negative numbers are indicated with a leading `m'. */ - if (**mangled == 'm') - { - string_appendn (s, "-", 1); - (*mangled)++; - } - /* Since consume_count_with_underscores does not handle - multi-digit numbers that do not start with an underscore, - and this number can be an integer template parameter, - we have to call consume_count. */ - multidigit_without_leading_underscore = 1; - /* These multi-digit numbers never end on an underscore, - so if there is one then don't eat it. */ - leave_following_underscore = 1; - } - - /* We must call consume_count if we expect to remove a trailing - underscore, since consume_count_with_underscores expects - the leading underscore (that we consumed) if it is to handle - multi-digit numbers. */ - if (multidigit_without_leading_underscore) - value = consume_count (mangled); - else - value = consume_count_with_underscores (mangled); - - if (value != -1) - { - char buf[INTBUF_SIZE]; - sprintf (buf, "%d", value); - string_append (s, buf); - - /* Numbers not otherwise delimited, might have an underscore - appended as a delimeter, which we should skip. - - ??? This used to always remove a following underscore, which - is wrong. If other (arbitrary) cases are followed by an - underscore, we need to do something more radical. */ - - if ((value > 9 || multidigit_without_leading_underscore) - && ! leave_following_underscore - && **mangled == '_') - (*mangled)++; - - /* All is well. */ - success = 1; - } - } - - return success; -} - -/* Demangle the real value in MANGLED. */ - -static int -demangle_real_value (struct work_stuff *work, - const char **mangled, string *s) -{ - if (**mangled == 'E') - return demangle_expression (work, mangled, s, tk_real); - - if (**mangled == 'm') - { - string_appendn (s, "-", 1); - (*mangled)++; - } - while (ISDIGIT ((unsigned char)**mangled)) - { - string_appendn (s, *mangled, 1); - (*mangled)++; - } - if (**mangled == '.') /* fraction */ - { - string_appendn (s, ".", 1); - (*mangled)++; - while (ISDIGIT ((unsigned char)**mangled)) - { - string_appendn (s, *mangled, 1); - (*mangled)++; - } - } - if (**mangled == 'e') /* exponent */ - { - string_appendn (s, "e", 1); - (*mangled)++; - while (ISDIGIT ((unsigned char)**mangled)) - { - string_appendn (s, *mangled, 1); - (*mangled)++; - } - } - - return 1; -} - -static int -demangle_template_value_parm (struct work_stuff *work, const char **mangled, - string *s, type_kind_t tk) -{ - int success = 1; - - if (**mangled == 'Y') - { - /* The next argument is a template parameter. */ - int idx; - - (*mangled)++; - idx = consume_count_with_underscores (mangled); - if (idx == -1 - || (work->tmpl_argvec && idx >= work->ntmpl_args) - || consume_count_with_underscores (mangled) == -1) - return -1; - if (work->tmpl_argvec) - string_append (s, work->tmpl_argvec[idx]); - else - string_append_template_idx (s, idx); - } - else if (tk == tk_integral) - success = demangle_integral_value (work, mangled, s); - else if (tk == tk_char) - { - char tmp[2]; - int val; - if (**mangled == 'm') - { - string_appendn (s, "-", 1); - (*mangled)++; - } - string_appendn (s, "'", 1); - val = consume_count(mangled); - if (val <= 0) - success = 0; - else - { - tmp[0] = (char)val; - tmp[1] = '\0'; - string_appendn (s, &tmp[0], 1); - string_appendn (s, "'", 1); - } - } - else if (tk == tk_bool) - { - int val = consume_count (mangled); - if (val == 0) - string_appendn (s, "false", 5); - else if (val == 1) - string_appendn (s, "true", 4); - else - success = 0; - } - else if (tk == tk_real) - success = demangle_real_value (work, mangled, s); - else if (tk == tk_pointer || tk == tk_reference - || tk == tk_rvalue_reference) - { - if (**mangled == 'Q') - success = demangle_qualified (work, mangled, s, - /*isfuncname=*/0, - /*append=*/1); - else - { - int symbol_len = consume_count (mangled); - if (symbol_len == -1 - || symbol_len > (long) strlen (*mangled)) - return -1; - if (symbol_len == 0) - string_appendn (s, "0", 1); - else - { - char *p = XNEWVEC (char, symbol_len + 1), *q; - strncpy (p, *mangled, symbol_len); - p [symbol_len] = '\0'; - /* We use cplus_demangle here, rather than - internal_cplus_demangle, because the name of the entity - mangled here does not make use of any of the squangling - or type-code information we have built up thus far; it is - mangled independently. */ - q = cplus_demangle (p, work->options); - if (tk == tk_pointer) - string_appendn (s, "&", 1); - /* FIXME: Pointer-to-member constants should get a - qualifying class name here. */ - if (q) - { - string_append (s, q); - free (q); - } - else - string_append (s, p); - free (p); - } - *mangled += symbol_len; - } - } - - return success; -} - -/* Demangle the template name in MANGLED. The full name of the - template (e.g., S<int>) is placed in TNAME. The name without the - template parameters (e.g. S) is placed in TRAWNAME if TRAWNAME is - non-NULL. If IS_TYPE is nonzero, this template is a type template, - not a function template. If both IS_TYPE and REMEMBER are nonzero, - the template is remembered in the list of back-referenceable - types. */ - -static int -demangle_template (struct work_stuff *work, const char **mangled, - string *tname, string *trawname, - int is_type, int remember) -{ - int i; - int r; - int need_comma = 0; - int success = 0; - int is_java_array = 0; - string temp; - - (*mangled)++; - if (is_type) - { - /* get template name */ - if (**mangled == 'z') - { - int idx; - (*mangled)++; - if (**mangled == '\0') - return (0); - (*mangled)++; - - idx = consume_count_with_underscores (mangled); - if (idx == -1 - || (work->tmpl_argvec && idx >= work->ntmpl_args) - || consume_count_with_underscores (mangled) == -1) - return (0); - - if (work->tmpl_argvec) - { - string_append (tname, work->tmpl_argvec[idx]); - if (trawname) - string_append (trawname, work->tmpl_argvec[idx]); - } - else - { - string_append_template_idx (tname, idx); - if (trawname) - string_append_template_idx (trawname, idx); - } - } - else - { - if ((r = consume_count (mangled)) <= 0 - || (int) strlen (*mangled) < r) - { - return (0); - } - is_java_array = (work -> options & DMGL_JAVA) - && strncmp (*mangled, "JArray1Z", 8) == 0; - if (! is_java_array) - { - string_appendn (tname, *mangled, r); - } - if (trawname) - string_appendn (trawname, *mangled, r); - *mangled += r; - } - } - if (!is_java_array) - string_append (tname, "<"); - /* get size of template parameter list */ - if (!get_count (mangled, &r)) - { - return (0); - } - if (!is_type) - { - /* Create an array for saving the template argument values. */ - work->tmpl_argvec = XNEWVEC (char *, r); - work->ntmpl_args = r; - for (i = 0; i < r; i++) - work->tmpl_argvec[i] = 0; - } - for (i = 0; i < r; i++) - { - if (need_comma) - { - string_append (tname, ", "); - } - /* Z for type parameters */ - if (**mangled == 'Z') - { - (*mangled)++; - /* temp is initialized in do_type */ - success = do_type (work, mangled, &temp); - if (success) - { - string_appends (tname, &temp); - - if (!is_type) - { - /* Save the template argument. */ - int len = temp.p - temp.b; - work->tmpl_argvec[i] = XNEWVEC (char, len + 1); - memcpy (work->tmpl_argvec[i], temp.b, len); - work->tmpl_argvec[i][len] = '\0'; - } - } - string_delete(&temp); - if (!success) - { - break; - } - } - /* z for template parameters */ - else if (**mangled == 'z') - { - int r2; - (*mangled)++; - success = demangle_template_template_parm (work, mangled, tname); - - if (success - && (r2 = consume_count (mangled)) > 0 - && (int) strlen (*mangled) >= r2) - { - string_append (tname, " "); - string_appendn (tname, *mangled, r2); - if (!is_type) - { - /* Save the template argument. */ - int len = r2; - work->tmpl_argvec[i] = XNEWVEC (char, len + 1); - memcpy (work->tmpl_argvec[i], *mangled, len); - work->tmpl_argvec[i][len] = '\0'; - } - *mangled += r2; - } - if (!success) - { - break; - } - } - else - { - string param; - string* s; - - /* otherwise, value parameter */ - - /* temp is initialized in do_type */ - success = do_type (work, mangled, &temp); - string_delete(&temp); - if (!success) - break; - - if (!is_type) - { - s = ¶m; - string_init (s); - } - else - s = tname; - - success = demangle_template_value_parm (work, mangled, s, - (type_kind_t) success); - - if (!success) - { - if (!is_type) - string_delete (s); - success = 0; - break; - } - - if (!is_type) - { - int len = s->p - s->b; - work->tmpl_argvec[i] = XNEWVEC (char, len + 1); - memcpy (work->tmpl_argvec[i], s->b, len); - work->tmpl_argvec[i][len] = '\0'; - - string_appends (tname, s); - string_delete (s); - } - } - need_comma = 1; - } - if (is_java_array) - { - string_append (tname, "[]"); - } - else - { - if (tname->p[-1] == '>') - string_append (tname, " "); - string_append (tname, ">"); - } - - if (is_type && remember) - { - const int bindex = register_Btype (work); - remember_Btype (work, tname->b, LEN_STRING (tname), bindex); - } - - /* - if (work -> static_type) - { - string_append (declp, *mangled + 1); - *mangled += strlen (*mangled); - success = 1; - } - else - { - success = demangle_args (work, mangled, declp); - } - } - */ - return (success); -} - -static int -arm_pt (struct work_stuff *work, const char *mangled, - int n, const char **anchor, const char **args) -{ - /* Check if ARM template with "__pt__" in it ("parameterized type") */ - /* Allow HP also here, because HP's cfront compiler follows ARM to some extent */ - if ((ARM_DEMANGLING || HP_DEMANGLING) && (*anchor = strstr (mangled, "__pt__"))) - { - int len; - *args = *anchor + 6; - len = consume_count (args); - if (len == -1) - return 0; - if (*args + len == mangled + n && **args == '_') - { - ++*args; - return 1; - } - } - if (AUTO_DEMANGLING || EDG_DEMANGLING) - { - if ((*anchor = strstr (mangled, "__tm__")) - || (*anchor = strstr (mangled, "__ps__")) - || (*anchor = strstr (mangled, "__pt__"))) - { - int len; - *args = *anchor + 6; - len = consume_count (args); - if (len == -1) - return 0; - if (*args + len == mangled + n && **args == '_') - { - ++*args; - return 1; - } - } - else if ((*anchor = strstr (mangled, "__S"))) - { - int len; - *args = *anchor + 3; - len = consume_count (args); - if (len == -1) - return 0; - if (*args + len == mangled + n && **args == '_') - { - ++*args; - return 1; - } - } - } - - return 0; -} - -static void -demangle_arm_hp_template (struct work_stuff *work, const char **mangled, - int n, string *declp) -{ - const char *p; - const char *args; - const char *e = *mangled + n; - string arg; - - /* Check for HP aCC template spec: classXt1t2 where t1, t2 are - template args */ - if (HP_DEMANGLING && ((*mangled)[n] == 'X')) - { - char *start_spec_args = NULL; - int hold_options; - - /* First check for and omit template specialization pseudo-arguments, - such as in "Spec<#1,#1.*>" */ - start_spec_args = strchr (*mangled, '<'); - if (start_spec_args && (start_spec_args - *mangled < n)) - string_appendn (declp, *mangled, start_spec_args - *mangled); - else - string_appendn (declp, *mangled, n); - (*mangled) += n + 1; - string_init (&arg); - if (work->temp_start == -1) /* non-recursive call */ - work->temp_start = declp->p - declp->b; - - /* We want to unconditionally demangle parameter types in - template parameters. */ - hold_options = work->options; - work->options |= DMGL_PARAMS; - - string_append (declp, "<"); - while (1) - { - string_delete (&arg); - switch (**mangled) - { - case 'T': - /* 'T' signals a type parameter */ - (*mangled)++; - if (!do_type (work, mangled, &arg)) - goto hpacc_template_args_done; - break; - - case 'U': - case 'S': - /* 'U' or 'S' signals an integral value */ - if (!do_hpacc_template_const_value (work, mangled, &arg)) - goto hpacc_template_args_done; - break; - - case 'A': - /* 'A' signals a named constant expression (literal) */ - if (!do_hpacc_template_literal (work, mangled, &arg)) - goto hpacc_template_args_done; - break; - - default: - /* Today, 1997-09-03, we have only the above types - of template parameters */ - /* FIXME: maybe this should fail and return null */ - goto hpacc_template_args_done; - } - string_appends (declp, &arg); - /* Check if we're at the end of template args. - 0 if at end of static member of template class, - _ if done with template args for a function */ - if ((**mangled == '\000') || (**mangled == '_')) - break; - else - string_append (declp, ","); - } - hpacc_template_args_done: - string_append (declp, ">"); - string_delete (&arg); - if (**mangled == '_') - (*mangled)++; - work->options = hold_options; - return; - } - /* ARM template? (Also handles HP cfront extensions) */ - else if (arm_pt (work, *mangled, n, &p, &args)) - { - int hold_options; - string type_str; - - string_init (&arg); - string_appendn (declp, *mangled, p - *mangled); - if (work->temp_start == -1) /* non-recursive call */ - work->temp_start = declp->p - declp->b; - - /* We want to unconditionally demangle parameter types in - template parameters. */ - hold_options = work->options; - work->options |= DMGL_PARAMS; - - string_append (declp, "<"); - /* should do error checking here */ - while (args < e) { - string_delete (&arg); - - /* Check for type or literal here */ - switch (*args) - { - /* HP cfront extensions to ARM for template args */ - /* spec: Xt1Lv1 where t1 is a type, v1 is a literal value */ - /* FIXME: We handle only numeric literals for HP cfront */ - case 'X': - /* A typed constant value follows */ - args++; - if (!do_type (work, &args, &type_str)) - goto cfront_template_args_done; - string_append (&arg, "("); - string_appends (&arg, &type_str); - string_delete (&type_str); - string_append (&arg, ")"); - if (*args != 'L') - goto cfront_template_args_done; - args++; - /* Now snarf a literal value following 'L' */ - if (!snarf_numeric_literal (&args, &arg)) - goto cfront_template_args_done; - break; - - case 'L': - /* Snarf a literal following 'L' */ - args++; - if (!snarf_numeric_literal (&args, &arg)) - goto cfront_template_args_done; - break; - default: - /* Not handling other HP cfront stuff */ - { - const char* old_args = args; - if (!do_type (work, &args, &arg)) - goto cfront_template_args_done; - - /* Fail if we didn't make any progress: prevent infinite loop. */ - if (args == old_args) - { - work->options = hold_options; - return; - } - } - } - string_appends (declp, &arg); - string_append (declp, ","); - } - cfront_template_args_done: - string_delete (&arg); - if (args >= e) - --declp->p; /* remove extra comma */ - string_append (declp, ">"); - work->options = hold_options; - } - else if (n>10 && strncmp (*mangled, "_GLOBAL_", 8) == 0 - && (*mangled)[9] == 'N' - && (*mangled)[8] == (*mangled)[10] - && strchr (cplus_markers, (*mangled)[8])) - { - /* A member of the anonymous namespace. */ - string_append (declp, "{anonymous}"); - } - else - { - if (work->temp_start == -1) /* non-recursive call only */ - work->temp_start = 0; /* disable in recursive calls */ - string_appendn (declp, *mangled, n); - } - *mangled += n; -} - -/* Extract a class name, possibly a template with arguments, from the - mangled string; qualifiers, local class indicators, etc. have - already been dealt with */ - -static int -demangle_class_name (struct work_stuff *work, const char **mangled, - string *declp) -{ - int n; - int success = 0; - - n = consume_count (mangled); - if (n == -1) - return 0; - if ((int) strlen (*mangled) >= n) - { - demangle_arm_hp_template (work, mangled, n, declp); - success = 1; - } - - return (success); -} - -/* - -LOCAL FUNCTION - - demangle_class -- demangle a mangled class sequence - -SYNOPSIS - - static int - demangle_class (struct work_stuff *work, const char **mangled, - strint *declp) - -DESCRIPTION - - DECLP points to the buffer into which demangling is being done. - - *MANGLED points to the current token to be demangled. On input, - it points to a mangled class (I.E. "3foo", "13verylongclass", etc.) - On exit, it points to the next token after the mangled class on - success, or the first unconsumed token on failure. - - If the CONSTRUCTOR or DESTRUCTOR flags are set in WORK, then - we are demangling a constructor or destructor. In this case - we prepend "class::class" or "class::~class" to DECLP. - - Otherwise, we prepend "class::" to the current DECLP. - - Reset the constructor/destructor flags once they have been - "consumed". This allows demangle_class to be called later during - the same demangling, to do normal class demangling. - - Returns 1 if demangling is successful, 0 otherwise. - -*/ - -static int -demangle_class (struct work_stuff *work, const char **mangled, string *declp) -{ - int success = 0; - int btype; - string class_name; - char *save_class_name_end = 0; - - string_init (&class_name); - btype = register_Btype (work); - if (demangle_class_name (work, mangled, &class_name)) - { - save_class_name_end = class_name.p; - if ((work->constructor & 1) || (work->destructor & 1)) - { - /* adjust so we don't include template args */ - if (work->temp_start && (work->temp_start != -1)) - { - class_name.p = class_name.b + work->temp_start; - } - string_prepends (declp, &class_name); - if (work -> destructor & 1) - { - string_prepend (declp, "~"); - work -> destructor -= 1; - } - else - { - work -> constructor -= 1; - } - } - class_name.p = save_class_name_end; - remember_Ktype (work, class_name.b, LEN_STRING(&class_name)); - remember_Btype (work, class_name.b, LEN_STRING(&class_name), btype); - string_prepend (declp, SCOPE_STRING (work)); - string_prepends (declp, &class_name); - success = 1; - } - string_delete (&class_name); - return (success); -} - - -/* Called when there's a "__" in the mangled name, with `scan' pointing to - the rightmost guess. - - Find the correct "__"-sequence where the function name ends and the - signature starts, which is ambiguous with GNU mangling. - Call demangle_signature here, so we can make sure we found the right - one; *mangled will be consumed so caller will not make further calls to - demangle_signature. */ - -static int -iterate_demangle_function (struct work_stuff *work, const char **mangled, - string *declp, const char *scan) -{ - const char *mangle_init = *mangled; - int success = 0; - string decl_init; - struct work_stuff work_init; - - if (*(scan + 2) == '\0') - return 0; - - /* Do not iterate for some demangling modes, or if there's only one - "__"-sequence. This is the normal case. */ - if (ARM_DEMANGLING || LUCID_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING - || strstr (scan + 2, "__") == NULL) - return demangle_function_name (work, mangled, declp, scan); - - /* Save state so we can restart if the guess at the correct "__" was - wrong. */ - string_init (&decl_init); - string_appends (&decl_init, declp); - memset (&work_init, 0, sizeof work_init); - work_stuff_copy_to_from (&work_init, work); - - /* Iterate over occurrences of __, allowing names and types to have a - "__" sequence in them. We must start with the first (not the last) - occurrence, since "__" most often occur between independent mangled - parts, hence starting at the last occurence inside a signature - might get us a "successful" demangling of the signature. */ - - while (scan[2]) - { - if (demangle_function_name (work, mangled, declp, scan)) - { - success = demangle_signature (work, mangled, declp); - if (success) - break; - } - - /* Reset demangle state for the next round. */ - *mangled = mangle_init; - string_clear (declp); - string_appends (declp, &decl_init); - work_stuff_copy_to_from (work, &work_init); - - /* Leave this underscore-sequence. */ - scan += 2; - - /* Scan for the next "__" sequence. */ - while (*scan && (scan[0] != '_' || scan[1] != '_')) - scan++; - - /* Move to last "__" in this sequence. */ - while (*scan && *scan == '_') - scan++; - scan -= 2; - } - - /* Delete saved state. */ - delete_work_stuff (&work_init); - string_delete (&decl_init); - - return success; -} - -/* - -LOCAL FUNCTION - - demangle_prefix -- consume the mangled name prefix and find signature - -SYNOPSIS - - static int - demangle_prefix (struct work_stuff *work, const char **mangled, - string *declp); - -DESCRIPTION - - Consume and demangle the prefix of the mangled name. - While processing the function name root, arrange to call - demangle_signature if the root is ambiguous. - - DECLP points to the string buffer into which demangled output is - placed. On entry, the buffer is empty. On exit it contains - the root function name, the demangled operator name, or in some - special cases either nothing or the completely demangled result. - - MANGLED points to the current pointer into the mangled name. As each - token of the mangled name is consumed, it is updated. Upon entry - the current mangled name pointer points to the first character of - the mangled name. Upon exit, it should point to the first character - of the signature if demangling was successful, or to the first - unconsumed character if demangling of the prefix was unsuccessful. - - Returns 1 on success, 0 otherwise. - */ - -static int -demangle_prefix (struct work_stuff *work, const char **mangled, - string *declp) -{ - int success = 1; - const char *scan; - int i; - - if (strlen(*mangled) > 6 - && (strncmp(*mangled, "_imp__", 6) == 0 - || strncmp(*mangled, "__imp_", 6) == 0)) - { - /* it's a symbol imported from a PE dynamic library. Check for both - new style prefix _imp__ and legacy __imp_ used by older versions - of dlltool. */ - (*mangled) += 6; - work->dllimported = 1; - } - else if (strlen(*mangled) >= 11 && strncmp(*mangled, "_GLOBAL_", 8) == 0) - { - char *marker = strchr (cplus_markers, (*mangled)[8]); - if (marker != NULL && *marker == (*mangled)[10]) - { - if ((*mangled)[9] == 'D') - { - /* it's a GNU global destructor to be executed at program exit */ - (*mangled) += 11; - work->destructor = 2; - if (gnu_special (work, mangled, declp)) - return success; - } - else if ((*mangled)[9] == 'I') - { - /* it's a GNU global constructor to be executed at program init */ - (*mangled) += 11; - work->constructor = 2; - if (gnu_special (work, mangled, declp)) - return success; - } - } - } - else if ((ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) && strncmp(*mangled, "__std__", 7) == 0) - { - /* it's a ARM global destructor to be executed at program exit */ - (*mangled) += 7; - work->destructor = 2; - } - else if ((ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) && strncmp(*mangled, "__sti__", 7) == 0) - { - /* it's a ARM global constructor to be executed at program initial */ - (*mangled) += 7; - work->constructor = 2; - } - - /* This block of code is a reduction in strength time optimization - of: - scan = strstr (*mangled, "__"); */ - - { - scan = *mangled; - - do { - scan = strchr (scan, '_'); - } while (scan != NULL && *++scan != '_'); - - if (scan != NULL) --scan; - } - - if (scan != NULL) - { - /* We found a sequence of two or more '_', ensure that we start at - the last pair in the sequence. */ - i = strspn (scan, "_"); - if (i > 2) - { - scan += (i - 2); - } - } - - if (scan == NULL) - { - success = 0; - } - else if (work -> static_type) - { - if (!ISDIGIT ((unsigned char)scan[0]) && (scan[0] != 't')) - { - success = 0; - } - } - else if ((scan == *mangled) - && (ISDIGIT ((unsigned char)scan[2]) || (scan[2] == 'Q') - || (scan[2] == 't') || (scan[2] == 'K') || (scan[2] == 'H'))) - { - /* The ARM says nothing about the mangling of local variables. - But cfront mangles local variables by prepending __<nesting_level> - to them. As an extension to ARM demangling we handle this case. */ - if ((LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING) - && ISDIGIT ((unsigned char)scan[2])) - { - *mangled = scan + 2; - consume_count (mangled); - string_append (declp, *mangled); - *mangled += strlen (*mangled); - success = 1; - } - else - { - /* A GNU style constructor starts with __[0-9Qt]. But cfront uses - names like __Q2_3foo3bar for nested type names. So don't accept - this style of constructor for cfront demangling. A GNU - style member-template constructor starts with 'H'. */ - if (!(LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING)) - work -> constructor += 1; - *mangled = scan + 2; - } - } - else if (ARM_DEMANGLING && scan[2] == 'p' && scan[3] == 't') - { - /* Cfront-style parameterized type. Handled later as a signature. */ - success = 1; - - /* ARM template? */ - demangle_arm_hp_template (work, mangled, strlen (*mangled), declp); - } - else if (EDG_DEMANGLING && ((scan[2] == 't' && scan[3] == 'm') - || (scan[2] == 'p' && scan[3] == 's') - || (scan[2] == 'p' && scan[3] == 't'))) - { - /* EDG-style parameterized type. Handled later as a signature. */ - success = 1; - - /* EDG template? */ - demangle_arm_hp_template (work, mangled, strlen (*mangled), declp); - } - else if ((scan == *mangled) && !ISDIGIT ((unsigned char)scan[2]) - && (scan[2] != 't')) - { - /* Mangled name starts with "__". Skip over any leading '_' characters, - then find the next "__" that separates the prefix from the signature. - */ - if (!(ARM_DEMANGLING || LUCID_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) - || (arm_special (mangled, declp) == 0)) - { - while (*scan == '_') - { - scan++; - } - if ((scan = strstr (scan, "__")) == NULL || (*(scan + 2) == '\0')) - { - /* No separator (I.E. "__not_mangled"), or empty signature - (I.E. "__not_mangled_either__") */ - success = 0; - } - else - return iterate_demangle_function (work, mangled, declp, scan); - } - } - else if (*(scan + 2) != '\0') - { - /* Mangled name does not start with "__" but does have one somewhere - in there with non empty stuff after it. Looks like a global - function name. Iterate over all "__":s until the right - one is found. */ - return iterate_demangle_function (work, mangled, declp, scan); - } - else - { - /* Doesn't look like a mangled name */ - success = 0; - } - - if (!success && (work->constructor == 2 || work->destructor == 2)) - { - string_append (declp, *mangled); - *mangled += strlen (*mangled); - success = 1; - } - return (success); -} - -/* - -LOCAL FUNCTION - - gnu_special -- special handling of gnu mangled strings - -SYNOPSIS - - static int - gnu_special (struct work_stuff *work, const char **mangled, - string *declp); - - -DESCRIPTION - - Process some special GNU style mangling forms that don't fit - the normal pattern. For example: - - _$_3foo (destructor for class foo) - _vt$foo (foo virtual table) - _vt$foo$bar (foo::bar virtual table) - __vt_foo (foo virtual table, new style with thunks) - _3foo$varname (static data member) - _Q22rs2tu$vw (static data member) - __t6vector1Zii (constructor with template) - __thunk_4__$_7ostream (virtual function thunk) - */ - -static int -gnu_special (struct work_stuff *work, const char **mangled, string *declp) -{ - int n; - int success = 1; - const char *p; - - if ((*mangled)[0] == '_' && (*mangled)[1] != '\0' - && strchr (cplus_markers, (*mangled)[1]) != NULL - && (*mangled)[2] == '_') - { - /* Found a GNU style destructor, get past "_<CPLUS_MARKER>_" */ - (*mangled) += 3; - work -> destructor += 1; - } - else if ((*mangled)[0] == '_' - && (((*mangled)[1] == '_' - && (*mangled)[2] == 'v' - && (*mangled)[3] == 't' - && (*mangled)[4] == '_') - || ((*mangled)[1] == 'v' - && (*mangled)[2] == 't' && (*mangled)[3] != '\0' - && strchr (cplus_markers, (*mangled)[3]) != NULL))) - { - /* Found a GNU style virtual table, get past "_vt<CPLUS_MARKER>" - and create the decl. Note that we consume the entire mangled - input string, which means that demangle_signature has no work - to do. */ - if ((*mangled)[2] == 'v') - (*mangled) += 5; /* New style, with thunks: "__vt_" */ - else - (*mangled) += 4; /* Old style, no thunks: "_vt<CPLUS_MARKER>" */ - while (**mangled != '\0') - { - switch (**mangled) - { - case 'Q': - case 'K': - success = demangle_qualified (work, mangled, declp, 0, 1); - break; - case 't': - success = demangle_template (work, mangled, declp, 0, 1, - 1); - break; - default: - if (ISDIGIT((unsigned char)*mangled[0])) - { - n = consume_count(mangled); - /* We may be seeing a too-large size, or else a - ".<digits>" indicating a static local symbol. In - any case, declare victory and move on; *don't* try - to use n to allocate. */ - if (n > (int) strlen (*mangled)) - { - success = 1; - break; - } - else if (n == -1) - { - success = 0; - break; - } - } - else - { - n = strcspn (*mangled, cplus_markers); - } - string_appendn (declp, *mangled, n); - (*mangled) += n; - } - - p = strpbrk (*mangled, cplus_markers); - if (success && ((p == NULL) || (p == *mangled))) - { - if (p != NULL) - { - string_append (declp, SCOPE_STRING (work)); - (*mangled)++; - } - } - else - { - success = 0; - break; - } - } - if (success) - string_append (declp, " virtual table"); - } - else if ((*mangled)[0] == '_' - && (strchr("0123456789Qt", (*mangled)[1]) != NULL) - && (p = strpbrk (*mangled, cplus_markers)) != NULL) - { - /* static data member, "_3foo$varname" for example */ - (*mangled)++; - switch (**mangled) - { - case 'Q': - case 'K': - success = demangle_qualified (work, mangled, declp, 0, 1); - break; - case 't': - success = demangle_template (work, mangled, declp, 0, 1, 1); - break; - default: - n = consume_count (mangled); - if (n < 0 || n > (long) strlen (*mangled)) - { - success = 0; - break; - } - - if (n > 10 && strncmp (*mangled, "_GLOBAL_", 8) == 0 - && (*mangled)[9] == 'N' - && (*mangled)[8] == (*mangled)[10] - && strchr (cplus_markers, (*mangled)[8])) - { - /* A member of the anonymous namespace. There's information - about what identifier or filename it was keyed to, but - it's just there to make the mangled name unique; we just - step over it. */ - string_append (declp, "{anonymous}"); - (*mangled) += n; - - /* Now p points to the marker before the N, so we need to - update it to the first marker after what we consumed. */ - p = strpbrk (*mangled, cplus_markers); - break; - } - - string_appendn (declp, *mangled, n); - (*mangled) += n; - } - if (success && (p == *mangled)) - { - /* Consumed everything up to the cplus_marker, append the - variable name. */ - (*mangled)++; - string_append (declp, SCOPE_STRING (work)); - n = strlen (*mangled); - string_appendn (declp, *mangled, n); - (*mangled) += n; - } - else - { - success = 0; - } - } - else if (strncmp (*mangled, "__thunk_", 8) == 0) - { - int delta; - - (*mangled) += 8; - delta = consume_count (mangled); - if (delta == -1) - success = 0; - else if (**mangled != '_') - success = 0; - else - { - char *method = internal_cplus_demangle (work, ++*mangled); - - if (method) - { - char buf[50]; - sprintf (buf, "virtual function thunk (delta:%d) for ", -delta); - string_append (declp, buf); - string_append (declp, method); - free (method); - n = strlen (*mangled); - (*mangled) += n; - } - else - { - success = 0; - } - } - } - else if (strncmp (*mangled, "__t", 3) == 0 - && ((*mangled)[3] == 'i' || (*mangled)[3] == 'f')) - { - p = (*mangled)[3] == 'i' ? " type_info node" : " type_info function"; - (*mangled) += 4; - switch (**mangled) - { - case 'Q': - case 'K': - success = demangle_qualified (work, mangled, declp, 0, 1); - break; - case 't': - success = demangle_template (work, mangled, declp, 0, 1, 1); - break; - default: - success = do_type (work, mangled, declp); - break; - } - if (success && **mangled != '\0') - success = 0; - if (success) - string_append (declp, p); - } - else - { - success = 0; - } - return (success); -} - -static void -recursively_demangle(struct work_stuff *work, const char **mangled, - string *result, int namelength) -{ - char * recurse = (char *)NULL; - char * recurse_dem = (char *)NULL; - - recurse = XNEWVEC (char, namelength + 1); - memcpy (recurse, *mangled, namelength); - recurse[namelength] = '\000'; - - recurse_dem = cplus_demangle (recurse, work->options); - - if (recurse_dem) - { - string_append (result, recurse_dem); - free (recurse_dem); - } - else - { - string_appendn (result, *mangled, namelength); - } - free (recurse); - *mangled += namelength; -} - -/* - -LOCAL FUNCTION - - arm_special -- special handling of ARM/lucid mangled strings - -SYNOPSIS - - static int - arm_special (const char **mangled, - string *declp); - - -DESCRIPTION - - Process some special ARM style mangling forms that don't fit - the normal pattern. For example: - - __vtbl__3foo (foo virtual table) - __vtbl__3foo__3bar (bar::foo virtual table) - - */ - -static int -arm_special (const char **mangled, string *declp) -{ - int n; - int success = 1; - const char *scan; - - if (strncmp (*mangled, ARM_VTABLE_STRING, ARM_VTABLE_STRLEN) == 0) - { - /* Found a ARM style virtual table, get past ARM_VTABLE_STRING - and create the decl. Note that we consume the entire mangled - input string, which means that demangle_signature has no work - to do. */ - scan = *mangled + ARM_VTABLE_STRLEN; - while (*scan != '\0') /* first check it can be demangled */ - { - n = consume_count (&scan); - if (n == -1) - { - return (0); /* no good */ - } - scan += n; - if (scan[0] == '_' && scan[1] == '_') - { - scan += 2; - } - } - (*mangled) += ARM_VTABLE_STRLEN; - while (**mangled != '\0') - { - n = consume_count (mangled); - if (n == -1 - || n > (long) strlen (*mangled)) - return 0; - string_prependn (declp, *mangled, n); - (*mangled) += n; - if ((*mangled)[0] == '_' && (*mangled)[1] == '_') - { - string_prepend (declp, "::"); - (*mangled) += 2; - } - } - string_append (declp, " virtual table"); - } - else - { - success = 0; - } - return (success); -} - -/* - -LOCAL FUNCTION - - demangle_qualified -- demangle 'Q' qualified name strings - -SYNOPSIS - - static int - demangle_qualified (struct work_stuff *, const char *mangled, - string *result, int isfuncname, int append); - -DESCRIPTION - - Demangle a qualified name, such as "Q25Outer5Inner" which is - the mangled form of "Outer::Inner". The demangled output is - prepended or appended to the result string according to the - state of the append flag. - - If isfuncname is nonzero, then the qualified name we are building - is going to be used as a member function name, so if it is a - constructor or destructor function, append an appropriate - constructor or destructor name. I.E. for the above example, - the result for use as a constructor is "Outer::Inner::Inner" - and the result for use as a destructor is "Outer::Inner::~Inner". - -BUGS - - Numeric conversion is ASCII dependent (FIXME). - - */ - -static int -demangle_qualified (struct work_stuff *work, const char **mangled, - string *result, int isfuncname, int append) -{ - int qualifiers = 0; - int success = 1; - char num[2]; - string temp; - string last_name; - int bindex = register_Btype (work); - - /* We only make use of ISFUNCNAME if the entity is a constructor or - destructor. */ - isfuncname = (isfuncname - && ((work->constructor & 1) || (work->destructor & 1))); - - string_init (&temp); - string_init (&last_name); - - if ((*mangled)[0] == 'K') - { - /* Squangling qualified name reuse */ - int idx; - (*mangled)++; - idx = consume_count_with_underscores (mangled); - if (idx == -1 || idx >= work -> numk) - success = 0; - else - string_append (&temp, work -> ktypevec[idx]); - } - else - switch ((*mangled)[1]) - { - case '_': - /* GNU mangled name with more than 9 classes. The count is preceded - by an underscore (to distinguish it from the <= 9 case) and followed - by an underscore. */ - (*mangled)++; - qualifiers = consume_count_with_underscores (mangled); - if (qualifiers == -1) - success = 0; - break; - - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - /* The count is in a single digit. */ - num[0] = (*mangled)[1]; - num[1] = '\0'; - qualifiers = atoi (num); - - /* If there is an underscore after the digit, skip it. This is - said to be for ARM-qualified names, but the ARM makes no - mention of such an underscore. Perhaps cfront uses one. */ - if ((*mangled)[2] == '_') - { - (*mangled)++; - } - (*mangled) += 2; - break; - - case '0': - default: - success = 0; - } - - if (!success) - return success; - - /* Pick off the names and collect them in the temp buffer in the order - in which they are found, separated by '::'. */ - - while (qualifiers-- > 0) - { - int remember_K = 1; - string_clear (&last_name); - - if (*mangled[0] == '_') - (*mangled)++; - - if (*mangled[0] == 't') - { - /* Here we always append to TEMP since we will want to use - the template name without the template parameters as a - constructor or destructor name. The appropriate - (parameter-less) value is returned by demangle_template - in LAST_NAME. We do not remember the template type here, - in order to match the G++ mangling algorithm. */ - success = demangle_template(work, mangled, &temp, - &last_name, 1, 0); - if (!success) - break; - } - else if (*mangled[0] == 'K') - { - int idx; - (*mangled)++; - idx = consume_count_with_underscores (mangled); - if (idx == -1 || idx >= work->numk) - success = 0; - else - string_append (&temp, work->ktypevec[idx]); - remember_K = 0; - - if (!success) break; - } - else - { - if (EDG_DEMANGLING) - { - int namelength; - /* Now recursively demangle the qualifier - * This is necessary to deal with templates in - * mangling styles like EDG */ - namelength = consume_count (mangled); - if (namelength == -1) - { - success = 0; - break; - } - recursively_demangle(work, mangled, &temp, namelength); - } - else - { - string_delete (&last_name); - success = do_type (work, mangled, &last_name); - if (!success) - break; - string_appends (&temp, &last_name); - } - } - - if (remember_K) - remember_Ktype (work, temp.b, LEN_STRING (&temp)); - - if (qualifiers > 0) - string_append (&temp, SCOPE_STRING (work)); - } - - remember_Btype (work, temp.b, LEN_STRING (&temp), bindex); - - /* If we are using the result as a function name, we need to append - the appropriate '::' separated constructor or destructor name. - We do this here because this is the most convenient place, where - we already have a pointer to the name and the length of the name. */ - - if (isfuncname) - { - string_append (&temp, SCOPE_STRING (work)); - if (work -> destructor & 1) - string_append (&temp, "~"); - string_appends (&temp, &last_name); - } - - /* Now either prepend the temp buffer to the result, or append it, - depending upon the state of the append flag. */ - - if (append) - string_appends (result, &temp); - else - { - if (!STRING_EMPTY (result)) - string_append (&temp, SCOPE_STRING (work)); - string_prepends (result, &temp); - } - - string_delete (&last_name); - string_delete (&temp); - return (success); -} - -/* - -LOCAL FUNCTION - - get_count -- convert an ascii count to integer, consuming tokens - -SYNOPSIS - - static int - get_count (const char **type, int *count) - -DESCRIPTION - - Assume that *type points at a count in a mangled name; set - *count to its value, and set *type to the next character after - the count. There are some weird rules in effect here. - - If *type does not point at a string of digits, return zero. - - If *type points at a string of digits followed by an - underscore, set *count to their value as an integer, advance - *type to point *after the underscore, and return 1. - - If *type points at a string of digits not followed by an - underscore, consume only the first digit. Set *count to its - value as an integer, leave *type pointing after that digit, - and return 1. - - The excuse for this odd behavior: in the ARM and HP demangling - styles, a type can be followed by a repeat count of the form - `Nxy', where: - - `x' is a single digit specifying how many additional copies - of the type to append to the argument list, and - - `y' is one or more digits, specifying the zero-based index of - the first repeated argument in the list. Yes, as you're - unmangling the name you can figure this out yourself, but - it's there anyway. - - So, for example, in `bar__3fooFPiN51', the first argument is a - pointer to an integer (`Pi'), and then the next five arguments - are the same (`N5'), and the first repeat is the function's - second argument (`1'). -*/ - -static int -get_count (const char **type, int *count) -{ - const char *p; - int n; - - if (!ISDIGIT ((unsigned char)**type)) - return (0); - else - { - *count = **type - '0'; - (*type)++; - if (ISDIGIT ((unsigned char)**type)) - { - p = *type; - n = *count; - do - { - n *= 10; - n += *p - '0'; - p++; - } - while (ISDIGIT ((unsigned char)*p)); - if (*p == '_') - { - *type = p + 1; - *count = n; - } - } - } - return (1); -} - -/* RESULT will be initialised here; it will be freed on failure. The - value returned is really a type_kind_t. */ - -static int -do_type (struct work_stuff *work, const char **mangled, string *result) -{ - int n; - int i; - int is_proctypevec; - int done; - int success; - string decl; - const char *remembered_type; - int type_quals; - type_kind_t tk = tk_none; - - string_init (&decl); - string_init (result); - - done = 0; - success = 1; - is_proctypevec = 0; - while (success && !done) - { - int member; - switch (**mangled) - { - - /* A pointer type */ - case 'P': - case 'p': - (*mangled)++; - if (! (work -> options & DMGL_JAVA)) - string_prepend (&decl, "*"); - if (tk == tk_none) - tk = tk_pointer; - break; - - /* A reference type */ - case 'R': - (*mangled)++; - string_prepend (&decl, "&"); - if (tk == tk_none) - tk = tk_reference; - break; - - /* An rvalue reference type */ - case 'O': - (*mangled)++; - string_prepend (&decl, "&&"); - if (tk == tk_none) - tk = tk_rvalue_reference; - break; - - /* An array */ - case 'A': - { - ++(*mangled); - if (!STRING_EMPTY (&decl) - && (decl.b[0] == '*' || decl.b[0] == '&')) - { - string_prepend (&decl, "("); - string_append (&decl, ")"); - } - string_append (&decl, "["); - if (**mangled != '_') - success = demangle_template_value_parm (work, mangled, &decl, - tk_integral); - if (**mangled == '_') - ++(*mangled); - string_append (&decl, "]"); - break; - } - - /* A back reference to a previously seen type */ - case 'T': - (*mangled)++; - if (!get_count (mangled, &n) || n < 0 || n >= work -> ntypes) - { - success = 0; - } - else - for (i = 0; i < work->nproctypes; i++) - if (work -> proctypevec [i] == n) - success = 0; - - if (success) - { - is_proctypevec = 1; - push_processed_type (work, n); - remembered_type = work->typevec[n]; - mangled = &remembered_type; - } - break; - - /* A function */ - case 'F': - (*mangled)++; - if (!STRING_EMPTY (&decl) - && (decl.b[0] == '*' || decl.b[0] == '&')) - { - string_prepend (&decl, "("); - string_append (&decl, ")"); - } - /* After picking off the function args, we expect to either find the - function return type (preceded by an '_') or the end of the - string. */ - if (!demangle_nested_args (work, mangled, &decl) - || (**mangled != '_' && **mangled != '\0')) - { - success = 0; - break; - } - if (success && (**mangled == '_')) - (*mangled)++; - break; - - case 'M': - { - type_quals = TYPE_UNQUALIFIED; - - member = **mangled == 'M'; - (*mangled)++; - - string_append (&decl, ")"); - - /* We don't need to prepend `::' for a qualified name; - demangle_qualified will do that for us. */ - if (**mangled != 'Q') - string_prepend (&decl, SCOPE_STRING (work)); - - if (ISDIGIT ((unsigned char)**mangled)) - { - n = consume_count (mangled); - if (n == -1 - || (int) strlen (*mangled) < n) - { - success = 0; - break; - } - string_prependn (&decl, *mangled, n); - *mangled += n; - } - else if (**mangled == 'X' || **mangled == 'Y') - { - string temp; - do_type (work, mangled, &temp); - string_prepends (&decl, &temp); - string_delete (&temp); - } - else if (**mangled == 't') - { - string temp; - string_init (&temp); - success = demangle_template (work, mangled, &temp, - NULL, 1, 1); - if (success) - { - string_prependn (&decl, temp.b, temp.p - temp.b); - string_delete (&temp); - } - else - { - string_delete (&temp); - break; - } - } - else if (**mangled == 'Q') - { - success = demangle_qualified (work, mangled, &decl, - /*isfuncnam=*/0, - /*append=*/0); - if (!success) - break; - } - else - { - success = 0; - break; - } - - string_prepend (&decl, "("); - if (member) - { - switch (**mangled) - { - case 'C': - case 'V': - case 'u': - type_quals |= code_for_qualifier (**mangled); - (*mangled)++; - break; - - default: - break; - } - - if (*(*mangled) != 'F') - { - success = 0; - break; - } - (*mangled)++; - } - if ((member && !demangle_nested_args (work, mangled, &decl)) - || **mangled != '_') - { - success = 0; - break; - } - (*mangled)++; - if (! PRINT_ANSI_QUALIFIERS) - { - break; - } - if (type_quals != TYPE_UNQUALIFIED) - { - APPEND_BLANK (&decl); - string_append (&decl, qualifier_string (type_quals)); - } - break; - } - case 'G': - (*mangled)++; - break; - - case 'C': - case 'V': - case 'u': - if (PRINT_ANSI_QUALIFIERS) - { - if (!STRING_EMPTY (&decl)) - string_prepend (&decl, " "); - - string_prepend (&decl, demangle_qualifier (**mangled)); - } - (*mangled)++; - break; - /* - } - */ - - /* fall through */ - default: - done = 1; - break; - } - } - - if (success) switch (**mangled) - { - /* A qualified name, such as "Outer::Inner". */ - case 'Q': - case 'K': - { - success = demangle_qualified (work, mangled, result, 0, 1); - break; - } - - /* A back reference to a previously seen squangled type */ - case 'B': - (*mangled)++; - if (!get_count (mangled, &n) || n < 0 || n >= work -> numb) - success = 0; - else - string_append (result, work->btypevec[n]); - break; - - case 'X': - case 'Y': - /* A template parm. We substitute the corresponding argument. */ - { - int idx; - - (*mangled)++; - idx = consume_count_with_underscores (mangled); - - if (idx == -1 - || (work->tmpl_argvec && idx >= work->ntmpl_args) - || consume_count_with_underscores (mangled) == -1) - { - success = 0; - break; - } - - if (work->tmpl_argvec) - string_append (result, work->tmpl_argvec[idx]); - else - string_append_template_idx (result, idx); - - success = 1; - } - break; - - default: - success = demangle_fund_type (work, mangled, result); - if (tk == tk_none) - tk = (type_kind_t) success; - break; - } - - if (success) - { - if (!STRING_EMPTY (&decl)) - { - string_append (result, " "); - string_appends (result, &decl); - } - } - else - string_delete (result); - string_delete (&decl); - - if (is_proctypevec) - pop_processed_type (work); - - if (success) - /* Assume an integral type, if we're not sure. */ - return (int) ((tk == tk_none) ? tk_integral : tk); - else - return 0; -} - -/* Given a pointer to a type string that represents a fundamental type - argument (int, long, unsigned int, etc) in TYPE, a pointer to the - string in which the demangled output is being built in RESULT, and - the WORK structure, decode the types and add them to the result. - - For example: - - "Ci" => "const int" - "Sl" => "signed long" - "CUs" => "const unsigned short" - - The value returned is really a type_kind_t. */ - -static int -demangle_fund_type (struct work_stuff *work, - const char **mangled, string *result) -{ - int done = 0; - int success = 1; - char buf[INTBUF_SIZE + 5 /* 'int%u_t' */]; - unsigned int dec = 0; - type_kind_t tk = tk_integral; - - /* First pick off any type qualifiers. There can be more than one. */ - - while (!done) - { - switch (**mangled) - { - case 'C': - case 'V': - case 'u': - if (PRINT_ANSI_QUALIFIERS) - { - if (!STRING_EMPTY (result)) - string_prepend (result, " "); - string_prepend (result, demangle_qualifier (**mangled)); - } - (*mangled)++; - break; - case 'U': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "unsigned"); - break; - case 'S': /* signed char only */ - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "signed"); - break; - case 'J': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "__complex"); - break; - default: - done = 1; - break; - } - } - - /* Now pick off the fundamental type. There can be only one. */ - - switch (**mangled) - { - case '\0': - case '_': - break; - case 'v': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "void"); - break; - case 'x': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "long long"); - break; - case 'l': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "long"); - break; - case 'i': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "int"); - break; - case 's': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "short"); - break; - case 'b': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "bool"); - tk = tk_bool; - break; - case 'c': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "char"); - tk = tk_char; - break; - case 'w': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "wchar_t"); - tk = tk_char; - break; - case 'r': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "long double"); - tk = tk_real; - break; - case 'd': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "double"); - tk = tk_real; - break; - case 'f': - (*mangled)++; - APPEND_BLANK (result); - string_append (result, "float"); - tk = tk_real; - break; - case 'G': - (*mangled)++; - if (!ISDIGIT ((unsigned char)**mangled)) - { - success = 0; - break; - } - /* fall through */ - case 'I': - (*mangled)++; - if (**mangled == '_') - { - int i; - (*mangled)++; - for (i = 0; - i < (long) sizeof (buf) - 1 && **mangled && **mangled != '_'; - (*mangled)++, i++) - buf[i] = **mangled; - if (**mangled != '_') - { - success = 0; - break; - } - buf[i] = '\0'; - (*mangled)++; - } - else - { - strncpy (buf, *mangled, 2); - buf[2] = '\0'; - *mangled += min (strlen (*mangled), 2); - } - sscanf (buf, "%x", &dec); - sprintf (buf, "int%u_t", dec); - APPEND_BLANK (result); - string_append (result, buf); - break; - - /* fall through */ - /* An explicit type, such as "6mytype" or "7integer" */ - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - { - int bindex = register_Btype (work); - string btype; - string_init (&btype); - if (demangle_class_name (work, mangled, &btype)) { - remember_Btype (work, btype.b, LEN_STRING (&btype), bindex); - APPEND_BLANK (result); - string_appends (result, &btype); - } - else - success = 0; - string_delete (&btype); - break; - } - case 't': - { - string btype; - string_init (&btype); - success = demangle_template (work, mangled, &btype, 0, 1, 1); - string_appends (result, &btype); - string_delete (&btype); - break; - } - default: - success = 0; - break; - } - - return success ? ((int) tk) : 0; -} - - -/* Handle a template's value parameter for HP aCC (extension from ARM) - **mangled points to 'S' or 'U' */ - -static int -do_hpacc_template_const_value (struct work_stuff *work ATTRIBUTE_UNUSED, - const char **mangled, string *result) -{ - int unsigned_const; - - if (**mangled != 'U' && **mangled != 'S') - return 0; - - unsigned_const = (**mangled == 'U'); - - (*mangled)++; - - switch (**mangled) - { - case 'N': - string_append (result, "-"); - /* fall through */ - case 'P': - (*mangled)++; - break; - case 'M': - /* special case for -2^31 */ - string_append (result, "-2147483648"); - (*mangled)++; - return 1; - default: - return 0; - } - - /* We have to be looking at an integer now */ - if (!(ISDIGIT ((unsigned char)**mangled))) - return 0; - - /* We only deal with integral values for template - parameters -- so it's OK to look only for digits */ - while (ISDIGIT ((unsigned char)**mangled)) - { - char_str[0] = **mangled; - string_append (result, char_str); - (*mangled)++; - } - - if (unsigned_const) - string_append (result, "U"); - - /* FIXME? Some day we may have 64-bit (or larger :-) ) constants - with L or LL suffixes. pai/1997-09-03 */ - - return 1; /* success */ -} - -/* Handle a template's literal parameter for HP aCC (extension from ARM) - **mangled is pointing to the 'A' */ - -static int -do_hpacc_template_literal (struct work_stuff *work, const char **mangled, - string *result) -{ - int literal_len = 0; - char * recurse; - char * recurse_dem; - - if (**mangled != 'A') - return 0; - - (*mangled)++; - - literal_len = consume_count (mangled); - - if (literal_len <= 0 - || literal_len > (long) strlen (*mangled)) - return 0; - - /* Literal parameters are names of arrays, functions, etc. and the - canonical representation uses the address operator */ - string_append (result, "&"); - - /* Now recursively demangle the literal name */ - recurse = XNEWVEC (char, literal_len + 1); - memcpy (recurse, *mangled, literal_len); - recurse[literal_len] = '\000'; - - recurse_dem = cplus_demangle (recurse, work->options); - - if (recurse_dem) - { - string_append (result, recurse_dem); - free (recurse_dem); - } - else - { - string_appendn (result, *mangled, literal_len); - } - (*mangled) += literal_len; - free (recurse); - - return 1; -} - -static int -snarf_numeric_literal (const char **args, string *arg) -{ - if (**args == '-') - { - char_str[0] = '-'; - string_append (arg, char_str); - (*args)++; - } - else if (**args == '+') - (*args)++; - - if (!ISDIGIT ((unsigned char)**args)) - return 0; - - while (ISDIGIT ((unsigned char)**args)) - { - char_str[0] = **args; - string_append (arg, char_str); - (*args)++; - } - - return 1; -} - -/* Demangle the next argument, given by MANGLED into RESULT, which - *should be an uninitialized* string. It will be initialized here, - and free'd should anything go wrong. */ - -static int -do_arg (struct work_stuff *work, const char **mangled, string *result) -{ - /* Remember where we started so that we can record the type, for - non-squangling type remembering. */ - const char *start = *mangled; - - string_init (result); - - if (work->nrepeats > 0) - { - --work->nrepeats; - - if (work->previous_argument == 0) - return 0; - - /* We want to reissue the previous type in this argument list. */ - string_appends (result, work->previous_argument); - return 1; - } - - if (**mangled == 'n') - { - /* A squangling-style repeat. */ - (*mangled)++; - work->nrepeats = consume_count(mangled); - - if (work->nrepeats <= 0) - /* This was not a repeat count after all. */ - return 0; - - if (work->nrepeats > 9) - { - if (**mangled != '_') - /* The repeat count should be followed by an '_' in this - case. */ - return 0; - else - (*mangled)++; - } - - /* Now, the repeat is all set up. */ - return do_arg (work, mangled, result); - } - - /* Save the result in WORK->previous_argument so that we can find it - if it's repeated. Note that saving START is not good enough: we - do not want to add additional types to the back-referenceable - type vector when processing a repeated type. */ - if (work->previous_argument) - string_delete (work->previous_argument); - else - work->previous_argument = XNEW (string); - - if (!do_type (work, mangled, work->previous_argument)) - return 0; - - string_appends (result, work->previous_argument); - - remember_type (work, start, *mangled - start); - return 1; -} - -static void -push_processed_type (struct work_stuff *work, int typevec_index) -{ - if (work->nproctypes >= work->proctypevec_size) - { - if (!work->proctypevec_size) - { - work->proctypevec_size = 4; - work->proctypevec = XNEWVEC (int, work->proctypevec_size); - } - else - { - if (work->proctypevec_size < 16) - /* Double when small. */ - work->proctypevec_size *= 2; - else - { - /* Grow slower when large. */ - if (work->proctypevec_size > (INT_MAX / 3) * 2) - xmalloc_failed (INT_MAX); - work->proctypevec_size = (work->proctypevec_size * 3 / 2); - } - work->proctypevec - = XRESIZEVEC (int, work->proctypevec, work->proctypevec_size); - } - } - work->proctypevec [work->nproctypes++] = typevec_index; -} - -static void -pop_processed_type (struct work_stuff *work) -{ - work->nproctypes--; -} - -static void -remember_type (struct work_stuff *work, const char *start, int len) -{ - char *tem; - - if (work->forgetting_types) - return; - - if (work -> ntypes >= work -> typevec_size) - { - if (work -> typevec_size == 0) - { - work -> typevec_size = 3; - work -> typevec = XNEWVEC (char *, work->typevec_size); - } - else - { - if (work -> typevec_size > INT_MAX / 2) - xmalloc_failed (INT_MAX); - work -> typevec_size *= 2; - work -> typevec - = XRESIZEVEC (char *, work->typevec, work->typevec_size); - } - } - tem = XNEWVEC (char, len + 1); - memcpy (tem, start, len); - tem[len] = '\0'; - work -> typevec[work -> ntypes++] = tem; -} - - -/* Remember a K type class qualifier. */ -static void -remember_Ktype (struct work_stuff *work, const char *start, int len) -{ - char *tem; - - if (work -> numk >= work -> ksize) - { - if (work -> ksize == 0) - { - work -> ksize = 5; - work -> ktypevec = XNEWVEC (char *, work->ksize); - } - else - { - if (work -> ksize > INT_MAX / 2) - xmalloc_failed (INT_MAX); - work -> ksize *= 2; - work -> ktypevec - = XRESIZEVEC (char *, work->ktypevec, work->ksize); - } - } - tem = XNEWVEC (char, len + 1); - memcpy (tem, start, len); - tem[len] = '\0'; - work -> ktypevec[work -> numk++] = tem; -} - -/* Register a B code, and get an index for it. B codes are registered - as they are seen, rather than as they are completed, so map<temp<char> > - registers map<temp<char> > as B0, and temp<char> as B1 */ - -static int -register_Btype (struct work_stuff *work) -{ - int ret; - - if (work -> numb >= work -> bsize) - { - if (work -> bsize == 0) - { - work -> bsize = 5; - work -> btypevec = XNEWVEC (char *, work->bsize); - } - else - { - if (work -> bsize > INT_MAX / 2) - xmalloc_failed (INT_MAX); - work -> bsize *= 2; - work -> btypevec - = XRESIZEVEC (char *, work->btypevec, work->bsize); - } - } - ret = work -> numb++; - work -> btypevec[ret] = NULL; - return(ret); -} - -/* Store a value into a previously registered B code type. */ - -static void -remember_Btype (struct work_stuff *work, const char *start, - int len, int index) -{ - char *tem; - - tem = XNEWVEC (char, len + 1); - if (len > 0) - memcpy (tem, start, len); - tem[len] = '\0'; - work -> btypevec[index] = tem; -} - -/* Lose all the info related to B and K type codes. */ - -static void -forget_B_and_K_types (struct work_stuff *work) -{ - int i; - - while (work -> numk > 0) - { - i = --(work -> numk); - if (work -> ktypevec[i] != NULL) - { - free (work -> ktypevec[i]); - work -> ktypevec[i] = NULL; - } - } - - while (work -> numb > 0) - { - i = --(work -> numb); - if (work -> btypevec[i] != NULL) - { - free (work -> btypevec[i]); - work -> btypevec[i] = NULL; - } - } -} - -/* Forget the remembered types, but not the type vector itself. */ - -static void -forget_types (struct work_stuff *work) -{ - int i; - - while (work -> ntypes > 0) - { - i = --(work -> ntypes); - if (work -> typevec[i] != NULL) - { - free (work -> typevec[i]); - work -> typevec[i] = NULL; - } - } -} - -/* Process the argument list part of the signature, after any class spec - has been consumed, as well as the first 'F' character (if any). For - example: - - "__als__3fooRT0" => process "RT0" - "complexfunc5__FPFPc_PFl_i" => process "PFPc_PFl_i" - - DECLP must be already initialised, usually non-empty. It won't be freed - on failure. - - Note that g++ differs significantly from ARM and lucid style mangling - with regards to references to previously seen types. For example, given - the source fragment: - - class foo { - public: - foo::foo (int, foo &ia, int, foo &ib, int, foo &ic); - }; - - foo::foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } - void foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } - - g++ produces the names: - - __3fooiRT0iT2iT2 - foo__FiR3fooiT1iT1 - - while lcc (and presumably other ARM style compilers as well) produces: - - foo__FiR3fooT1T2T1T2 - __ct__3fooFiR3fooT1T2T1T2 - - Note that g++ bases its type numbers starting at zero and counts all - previously seen types, while lucid/ARM bases its type numbers starting - at one and only considers types after it has seen the 'F' character - indicating the start of the function args. For lucid/ARM style, we - account for this difference by discarding any previously seen types when - we see the 'F' character, and subtracting one from the type number - reference. - - */ - -static int -demangle_args (struct work_stuff *work, const char **mangled, - string *declp) -{ - string arg; - int need_comma = 0; - int r; - int t; - const char *tem; - char temptype; - - if (PRINT_ARG_TYPES) - { - string_append (declp, "("); - if (**mangled == '\0') - { - string_append (declp, "void"); - } - } - - while ((**mangled != '_' && **mangled != '\0' && **mangled != 'e') - || work->nrepeats > 0) - { - if ((**mangled == 'N') || (**mangled == 'T')) - { - temptype = *(*mangled)++; - - if (temptype == 'N') - { - if (!get_count (mangled, &r)) - { - return (0); - } - } - else - { - r = 1; - } - if ((HP_DEMANGLING || ARM_DEMANGLING || EDG_DEMANGLING) && work -> ntypes >= 10) - { - /* If we have 10 or more types we might have more than a 1 digit - index so we'll have to consume the whole count here. This - will lose if the next thing is a type name preceded by a - count but it's impossible to demangle that case properly - anyway. Eg if we already have 12 types is T12Pc "(..., type1, - Pc, ...)" or "(..., type12, char *, ...)" */ - if ((t = consume_count(mangled)) <= 0) - { - return (0); - } - } - else - { - if (!get_count (mangled, &t)) - { - return (0); - } - } - if (LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) - { - t--; - } - /* Validate the type index. Protect against illegal indices from - malformed type strings. */ - if ((t < 0) || (t >= work -> ntypes)) - { - return (0); - } - while (work->nrepeats > 0 || --r >= 0) - { - tem = work -> typevec[t]; - if (need_comma && PRINT_ARG_TYPES) - { - string_append (declp, ", "); - } - push_processed_type (work, t); - if (!do_arg (work, &tem, &arg)) - { - pop_processed_type (work); - return (0); - } - pop_processed_type (work); - if (PRINT_ARG_TYPES) - { - string_appends (declp, &arg); - } - string_delete (&arg); - need_comma = 1; - } - } - else - { - if (need_comma && PRINT_ARG_TYPES) - string_append (declp, ", "); - if (!do_arg (work, mangled, &arg)) - return (0); - if (PRINT_ARG_TYPES) - string_appends (declp, &arg); - string_delete (&arg); - need_comma = 1; - } - } - - if (**mangled == 'e') - { - (*mangled)++; - if (PRINT_ARG_TYPES) - { - if (need_comma) - { - string_append (declp, ","); - } - string_append (declp, "..."); - } - } - - if (PRINT_ARG_TYPES) - { - string_append (declp, ")"); - } - return (1); -} - -/* Like demangle_args, but for demangling the argument lists of function - and method pointers or references, not top-level declarations. */ - -static int -demangle_nested_args (struct work_stuff *work, const char **mangled, - string *declp) -{ - string* saved_previous_argument; - int result; - int saved_nrepeats; - - if ((work->options & DMGL_NO_RECURSE_LIMIT) == 0) - { - if (work->recursion_level > DEMANGLE_RECURSION_LIMIT) - /* FIXME: There ought to be a way to report - that the recursion limit has been reached. */ - return 0; - - work->recursion_level ++; - } - - /* The G++ name-mangling algorithm does not remember types on nested - argument lists, unless -fsquangling is used, and in that case the - type vector updated by remember_type is not used. So, we turn - off remembering of types here. */ - ++work->forgetting_types; - - /* For the repeat codes used with -fsquangling, we must keep track of - the last argument. */ - saved_previous_argument = work->previous_argument; - saved_nrepeats = work->nrepeats; - work->previous_argument = 0; - work->nrepeats = 0; - - /* Actually demangle the arguments. */ - result = demangle_args (work, mangled, declp); - - /* Restore the previous_argument field. */ - if (work->previous_argument) - { - string_delete (work->previous_argument); - free ((char *) work->previous_argument); - } - work->previous_argument = saved_previous_argument; - --work->forgetting_types; - work->nrepeats = saved_nrepeats; - - if ((work->options & DMGL_NO_RECURSE_LIMIT) == 0) - --work->recursion_level; - - return result; -} - -/* Returns 1 if a valid function name was found or 0 otherwise. */ - -static int -demangle_function_name (struct work_stuff *work, const char **mangled, - string *declp, const char *scan) -{ - size_t i; - string type; - const char *tem; - - string_appendn (declp, (*mangled), scan - (*mangled)); - string_need (declp, 1); - *(declp -> p) = '\0'; - - /* Consume the function name, including the "__" separating the name - from the signature. We are guaranteed that SCAN points to the - separator. */ - - (*mangled) = scan + 2; - /* We may be looking at an instantiation of a template function: - foo__Xt1t2_Ft3t4, where t1, t2, ... are template arguments and a - following _F marks the start of the function arguments. Handle - the template arguments first. */ - - if (HP_DEMANGLING && (**mangled == 'X')) - { - demangle_arm_hp_template (work, mangled, 0, declp); - /* This leaves MANGLED pointing to the 'F' marking func args */ - } - - if (LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) - { - - /* See if we have an ARM style constructor or destructor operator. - If so, then just record it, clear the decl, and return. - We can't build the actual constructor/destructor decl until later, - when we recover the class name from the signature. */ - - if (strcmp (declp -> b, "__ct") == 0) - { - work -> constructor += 1; - string_clear (declp); - return 1; - } - else if (strcmp (declp -> b, "__dt") == 0) - { - work -> destructor += 1; - string_clear (declp); - return 1; - } - } - - if (declp->p - declp->b >= 3 - && declp->b[0] == 'o' - && declp->b[1] == 'p' - && strchr (cplus_markers, declp->b[2]) != NULL) - { - /* see if it's an assignment expression */ - if (declp->p - declp->b >= 10 /* op$assign_ */ - && memcmp (declp->b + 3, "assign_", 7) == 0) - { - for (i = 0; i < ARRAY_SIZE (optable); i++) - { - int len = declp->p - declp->b - 10; - if ((int) strlen (optable[i].in) == len - && memcmp (optable[i].in, declp->b + 10, len) == 0) - { - string_clear (declp); - string_append (declp, "operator"); - string_append (declp, optable[i].out); - string_append (declp, "="); - break; - } - } - } - else - { - for (i = 0; i < ARRAY_SIZE (optable); i++) - { - int len = declp->p - declp->b - 3; - if ((int) strlen (optable[i].in) == len - && memcmp (optable[i].in, declp->b + 3, len) == 0) - { - string_clear (declp); - string_append (declp, "operator"); - string_append (declp, optable[i].out); - break; - } - } - } - } - else if (declp->p - declp->b >= 5 && memcmp (declp->b, "type", 4) == 0 - && strchr (cplus_markers, declp->b[4]) != NULL) - { - /* type conversion operator */ - tem = declp->b + 5; - if (do_type (work, &tem, &type)) - { - string_clear (declp); - string_append (declp, "operator "); - string_appends (declp, &type); - string_delete (&type); - } - } - else if (declp->b[0] == '_' && declp->b[1] == '_' - && declp->b[2] == 'o' && declp->b[3] == 'p') - { - /* ANSI. */ - /* type conversion operator. */ - tem = declp->b + 4; - if (do_type (work, &tem, &type)) - { - string_clear (declp); - string_append (declp, "operator "); - string_appends (declp, &type); - string_delete (&type); - } - } - else if (declp->b[0] == '_' && declp->b[1] == '_' - && ISLOWER((unsigned char)declp->b[2]) - && ISLOWER((unsigned char)declp->b[3])) - { - if (declp->b[4] == '\0') - { - /* Operator. */ - for (i = 0; i < ARRAY_SIZE (optable); i++) - { - if (strlen (optable[i].in) == 2 - && memcmp (optable[i].in, declp->b + 2, 2) == 0) - { - string_clear (declp); - string_append (declp, "operator"); - string_append (declp, optable[i].out); - break; - } - } - } - else - { - if (declp->b[2] == 'a' && declp->b[5] == '\0') - { - /* Assignment. */ - for (i = 0; i < ARRAY_SIZE (optable); i++) - { - if (strlen (optable[i].in) == 3 - && memcmp (optable[i].in, declp->b + 2, 3) == 0) - { - string_clear (declp); - string_append (declp, "operator"); - string_append (declp, optable[i].out); - break; - } - } - } - } - } - - /* If a function name was obtained but it's not valid, we were not - successful. */ - if (LEN_STRING (declp) == 1 && declp->b[0] == '.') - return 0; - else - return 1; -} - -/* a mini string-handling package */ - -static void -string_need (string *s, int n) -{ - int tem; - - if (s->b == NULL) - { - if (n < 32) - { - n = 32; - } - s->p = s->b = XNEWVEC (char, n); - s->e = s->b + n; - } - else if (s->e - s->p < n) - { - tem = s->p - s->b; - if (n > INT_MAX / 2 - tem) - xmalloc_failed (INT_MAX); - n += tem; - n *= 2; - s->b = XRESIZEVEC (char, s->b, n); - s->p = s->b + tem; - s->e = s->b + n; - } -} - -static void -string_delete (string *s) -{ - if (s->b != NULL) - { - free (s->b); - s->b = s->e = s->p = NULL; - } -} - -static void -string_init (string *s) -{ - s->b = s->p = s->e = NULL; -} - -static void -string_clear (string *s) -{ - s->p = s->b; -} - -#if 0 - -static int -string_empty (string *s) -{ - return (s->b == s->p); -} - -#endif - -static void -string_append (string *p, const char *s) -{ - int n; - if (s == NULL || *s == '\0') - return; - n = strlen (s); - string_need (p, n); - memcpy (p->p, s, n); - p->p += n; -} - -static void -string_appends (string *p, string *s) -{ - int n; - - if (s->b != s->p) - { - n = s->p - s->b; - string_need (p, n); - memcpy (p->p, s->b, n); - p->p += n; - } -} - -static void -string_appendn (string *p, const char *s, int n) -{ - if (n != 0) - { - string_need (p, n); - memcpy (p->p, s, n); - p->p += n; - } -} - -static void -string_prepend (string *p, const char *s) -{ - if (s != NULL && *s != '\0') - { - string_prependn (p, s, strlen (s)); - } -} - -static void -string_prepends (string *p, string *s) -{ - if (s->b != s->p) - { - string_prependn (p, s->b, s->p - s->b); - } -} - -static void -string_prependn (string *p, const char *s, int n) -{ - char *q; - - if (n != 0) - { - string_need (p, n); - for (q = p->p - 1; q >= p->b; q--) - { - q[n] = q[0]; - } - memcpy (p->b, s, n); - p->p += n; - } -} - -static void -string_append_template_idx (string *s, int idx) -{ - char buf[INTBUF_SIZE + 1 /* 'T' */]; - sprintf(buf, "T%d", idx); - string_append (s, buf); -} |