/* Demangler for GNU C++
- Copyright 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1989-2024 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.uucp)
Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling
Modified by Satish Pai (pai@apollo.hp.com) for HP demangling
You should have received a copy of the GNU Library General Public
License along with libiberty; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, 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. */
+not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA. */
/* This file lives in both GCC and libiberty. When making changes, please
try not to break either. */
#include "safe-ctype.h"
-#include <sys/types.h>
#include <string.h>
-#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#else
-char * malloc ();
-char * realloc ();
+void * malloc ();
+void * realloc ();
#endif
#include <demangle.h>
#undef CURRENT_DEMANGLING_STYLE
-#define CURRENT_DEMANGLING_STYLE work->options
+#define CURRENT_DEMANGLING_STYLE options
#include "libiberty.h"
-static char *ada_demangle PARAMS ((const char *, int));
-
-#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 PARAMS ((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 (ch)
- 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. */
-};
-
-#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_integral,
- tk_bool,
- tk_char,
- tk_real
-} type_kind_t;
-
const struct demangler_engine libiberty_demanglers[] =
{
{
"Automatic selection based on executable"
}
,
- {
- 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"
}
,
{
"GNAT style demangling"
}
,
+ {
+ DLANG_DEMANGLING_STYLE_STRING,
+ dlang_demangling,
+ "DLANG style demangling"
+ }
+ ,
+ {
+ RUST_DEMANGLING_STYLE_STRING,
+ rust_demangling,
+ "Rust style demangling"
+ }
+ ,
{
NULL, unknown_demangling, NULL
}
};
-#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 PARAMS ((struct work_stuff *));
-
-static void
-delete_non_B_K_work_stuff PARAMS ((struct work_stuff *));
-
-static char *
-mop_up PARAMS ((struct work_stuff *, string *, int));
-
-static void
-squangle_mop_up PARAMS ((struct work_stuff *));
-
-static void
-work_stuff_copy_to_from PARAMS ((struct work_stuff *, struct work_stuff *));
-
-#if 0
-static int
-demangle_method_args PARAMS ((struct work_stuff *, const char **, string *));
-#endif
-
-static char *
-internal_cplus_demangle PARAMS ((struct work_stuff *, const char *));
-
-static int
-demangle_template_template_parm PARAMS ((struct work_stuff *work,
- const char **, string *));
-
-static int
-demangle_template PARAMS ((struct work_stuff *work, const char **, string *,
- string *, int, int));
-
-static int
-arm_pt PARAMS ((struct work_stuff *, const char *, int, const char **,
- const char **));
-
-static int
-demangle_class_name PARAMS ((struct work_stuff *, const char **, string *));
-
-static int
-demangle_qualified PARAMS ((struct work_stuff *, const char **, string *,
- int, int));
-
-static int
-demangle_class PARAMS ((struct work_stuff *, const char **, string *));
-
-static int
-demangle_fund_type PARAMS ((struct work_stuff *, const char **, string *));
-
-static int
-demangle_signature PARAMS ((struct work_stuff *, const char **, string *));
-
-static int
-demangle_prefix PARAMS ((struct work_stuff *, const char **, string *));
-
-static int
-gnu_special PARAMS ((struct work_stuff *, const char **, string *));
-
-static int
-arm_special PARAMS ((const char **, string *));
-
-static void
-string_need PARAMS ((string *, int));
-
-static void
-string_delete PARAMS ((string *));
-
-static void
-string_init PARAMS ((string *));
-
-static void
-string_clear PARAMS ((string *));
-
-#if 0
-static int
-string_empty PARAMS ((string *));
-#endif
-
-static void
-string_append PARAMS ((string *, const char *));
-
-static void
-string_appends PARAMS ((string *, string *));
-
-static void
-string_appendn PARAMS ((string *, const char *, int));
-
-static void
-string_prepend PARAMS ((string *, const char *));
-
-static void
-string_prependn PARAMS ((string *, const char *, int));
-
-static void
-string_append_template_idx PARAMS ((string *, int));
-
-static int
-get_count PARAMS ((const char **, int *));
-
-static int
-consume_count PARAMS ((const char **));
-
-static int
-consume_count_with_underscores PARAMS ((const char**));
-
-static int
-demangle_args PARAMS ((struct work_stuff *, const char **, string *));
-
-static int
-demangle_nested_args PARAMS ((struct work_stuff*, const char**, string*));
-
-static int
-do_type PARAMS ((struct work_stuff *, const char **, string *));
-
-static int
-do_arg PARAMS ((struct work_stuff *, const char **, string *));
-
-static void
-demangle_function_name PARAMS ((struct work_stuff *, const char **, string *,
- const char *));
-
-static int
-iterate_demangle_function PARAMS ((struct work_stuff *,
- const char **, string *, const char *));
-
-static void
-remember_type PARAMS ((struct work_stuff *, const char *, int));
-
-static void
-remember_Btype PARAMS ((struct work_stuff *, const char *, int, int));
-
-static int
-register_Btype PARAMS ((struct work_stuff *));
-
-static void
-remember_Ktype PARAMS ((struct work_stuff *, const char *, int));
-
-static void
-forget_types PARAMS ((struct work_stuff *));
-
-static void
-forget_B_and_K_types PARAMS ((struct work_stuff *));
-
-static void
-string_prepends PARAMS ((string *, string *));
-
-static int
-demangle_template_value_parm PARAMS ((struct work_stuff*, const char**,
- string*, type_kind_t));
-
-static int
-do_hpacc_template_const_value PARAMS ((struct work_stuff *, const char **, string *));
-
-static int
-do_hpacc_template_literal PARAMS ((struct work_stuff *, const char **, string *));
-
-static int
-snarf_numeric_literal PARAMS ((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 PARAMS ((int));
-
-static const char*
-qualifier_string PARAMS ((int));
-
-static const char*
-demangle_qualifier PARAMS ((int));
-
-static int
-demangle_expression PARAMS ((struct work_stuff *, const char **, string *,
- type_kind_t));
-
-static int
-demangle_integral_value PARAMS ((struct work_stuff *, const char **,
- string *));
-
-static int
-demangle_real_value PARAMS ((struct work_stuff *, const char **, string *));
-
-static void
-demangle_arm_hp_template PARAMS ((struct work_stuff *, const char **, int,
- string *));
-
-static void
-recursively_demangle PARAMS ((struct work_stuff *, const char **, string *,
- int));
-
-static void
-grow_vect PARAMS ((char **, size_t *, size_t, 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 (type)
- const char **type;
-{
- int count = 0;
-
- if (! ISDIGIT ((unsigned char)**type))
- return -1;
-
- while (ISDIGIT ((unsigned char)**type))
- {
- count *= 10;
-
- /* Check for overflow.
- We assume that count is represented using two's-complement;
- no power of two is divisible by ten, so if an overflow occurs
- when multiplying by ten, the result will not be a multiple of
- ten. */
- if ((count % 10) != 0)
- {
- while (ISDIGIT ((unsigned char) **type))
- (*type)++;
- return -1;
- }
-
- count += **type - '0';
- (*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 (mangled)
- 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 (c)
- 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 (type_quals)
- 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 (c)
- int c;
-{
- return qualifier_string (code_for_qualifier (c));
-}
-
-int
-cplus_demangle_opname (opname, result, options)
- 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 (opname, options)
- 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. */
enum demangling_styles
-cplus_demangle_set_style (style)
- enum demangling_styles style;
+cplus_demangle_set_style (enum demangling_styles style)
{
const struct demangler_engine *demangler = libiberty_demanglers;
/* Do string name to style translation */
enum demangling_styles
-cplus_demangle_name_to_style (name)
- const char *name;
+cplus_demangle_name_to_style (const char *name)
{
const struct demangler_engine *demangler = libiberty_demanglers;
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. */
char *
-cplus_demangle (mangled, options)
- const char *mangled;
- int options;
+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 Rust demangling is implemented elsewhere.
+ Legacy Rust symbols overlap with GNU_V3, so try Rust first. */
+ if (RUST_DEMANGLING || AUTO_DEMANGLING)
+ {
+ ret = rust_demangle (mangled, options);
+ if (ret || RUST_DEMANGLING)
+ return ret;
+ }
/* The V3 ABI demangling is implemented elsewhere. */
if (GNU_V3_DEMANGLING || AUTO_DEMANGLING)
{
- ret = cplus_demangle_v3 (mangled, work->options);
+ ret = cplus_demangle_v3 (mangled, options);
if (ret || GNU_V3_DEMANGLING)
return ret;
}
}
if (GNAT_DEMANGLING)
- return ada_demangle(mangled,options);
-
- ret = internal_cplus_demangle (work, mangled);
- squangle_mop_up (work);
- return (ret);
-}
+ return ada_demangle (mangled, options);
-
-/* Assuming *OLD_VECT points to an array of *SIZE objects of size
- ELEMENT_SIZE, grow it to contain at least MIN_SIZE objects,
- updating *OLD_VECT and *SIZE as necessary. */
-
-static void
-grow_vect (old_vect, size, min_size, element_size)
- char **old_vect;
- size_t *size;
- size_t min_size;
- int element_size;
-{
- if (*size < min_size)
+ if (DLANG_DEMANGLING || AUTO_DEMANGLING)
{
- *size *= 2;
- if (*size < min_size)
- *size = min_size;
- *old_vect = (void *) xrealloc (*old_vect, *size * element_size);
+ ret = dlang_demangle (mangled, options);
+ if (ret)
+ return ret;
}
+
+ return (ret);
}
-/* Demangle ada names:
- 1. Discard final __{DIGIT}+ or ${DIGIT}+
- 2. Convert other instances of embedded "__" to `.'.
- 3. Discard leading _ada_.
- 4. Remove everything after first ___ if it is followed by 'X'.
- 5. Put symbols that should be suppressed in <...> brackets.
- The resulting string is valid until the next call of ada_demangle. */
+/* Demangle ada names. The encoding is documented in gcc/ada/exp_dbug.ads. */
-static char *
-ada_demangle (mangled, option)
- const char *mangled;
- int option ATTRIBUTE_UNUSED;
+char *
+ada_demangle (const char *mangled, int option ATTRIBUTE_UNUSED)
{
- int i, j;
int len0;
const char* p;
+ char *d;
char *demangled = NULL;
- int at_start_name;
- int changed;
- size_t demangled_size = 0;
- changed = 0;
-
+ /* Discard leading _ada_, which is used for library level subprograms. */
if (strncmp (mangled, "_ada_", 5) == 0)
- {
- mangled += 5;
- changed = 1;
- }
-
- if (mangled[0] == '_' || mangled[0] == '<')
- goto Suppress;
-
- p = strstr (mangled, "___");
- if (p == NULL)
- len0 = strlen (mangled);
- else
- {
- if (p[3] == 'X')
- {
- len0 = p - mangled;
- changed = 1;
- }
- else
- goto Suppress;
- }
-
- /* Make demangled big enough for possible expansion by operator name. */
- grow_vect (&demangled,
- &demangled_size, 2 * len0 + 1,
- sizeof (char));
-
- if (ISDIGIT ((unsigned char) mangled[len0 - 1])) {
- for (i = len0 - 2; i >= 0 && ISDIGIT ((unsigned char) mangled[i]); i -= 1)
- ;
- if (i > 1 && mangled[i] == '_' && mangled[i - 1] == '_')
- {
- len0 = i - 1;
- changed = 1;
- }
- else if (mangled[i] == '$')
- {
- len0 = i;
- changed = 1;
- }
- }
-
- for (i = 0, j = 0; i < len0 && ! ISALPHA ((unsigned char)mangled[i]);
- i += 1, j += 1)
- demangled[j] = mangled[i];
-
- at_start_name = 1;
- while (i < len0)
- {
- at_start_name = 0;
-
- if (i < len0 - 2 && mangled[i] == '_' && mangled[i + 1] == '_')
- {
- demangled[j] = '.';
- changed = at_start_name = 1;
- i += 2; j += 1;
- }
- else
- {
- demangled[j] = mangled[i];
- i += 1; j += 1;
- }
- }
- demangled[j] = '\000';
-
- for (i = 0; demangled[i] != '\0'; i += 1)
- if (ISUPPER ((unsigned char)demangled[i]) || demangled[i] == ' ')
- goto Suppress;
-
- if (! changed)
- return NULL;
- else
- return demangled;
+ mangled += 5;
+
+ /* All ada unit names are lower-case. */
+ if (!ISLOWER (mangled[0]))
+ goto unknown;
+
+ /* Most of the demangling will trivially remove chars. Operator names
+ may add one char but because they are always preceeded by '__' which is
+ replaced by '.', they eventually never expand the size.
+ A few special names such as '___elabs' add a few chars (at most 7), but
+ they occur only once. */
+ len0 = strlen (mangled) + 7 + 1;
+ demangled = XNEWVEC (char, len0);
- Suppress:
- grow_vect (&demangled,
- &demangled_size, strlen (mangled) + 3,
- sizeof (char));
-
- if (mangled[0] == '<')
- strcpy (demangled, mangled);
- else
- sprintf (demangled, "<%s>", mangled);
-
- 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 (work, mangled)
- 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'))
+ d = demangled;
+ p = mangled;
+ while (1)
{
- 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)
- {
- success = demangle_prefix (work, &mangled, &decl);
- }
- if (success && (*mangled != '\0'))
- {
- success = demangle_signature (work, &mangled, &decl);
- }
- if (work->constructor == 2)
+ /* An entity names is expected. */
+ if (ISLOWER (*p))
{
- string_prepend (&decl, "global constructors keyed to ");
- work->constructor = 0;
+ /* An identifier, which is always lower case. */
+ do
+ *d++ = *p++;
+ while (ISLOWER(*p) || ISDIGIT (*p)
+ || (p[0] == '_' && (ISLOWER (p[1]) || ISDIGIT (p[1]))));
}
- else if (work->destructor == 2)
+ else if (p[0] == 'O')
{
- string_prepend (&decl, "global destructors keyed to ");
- work->destructor = 0;
+ /* An operator name. */
+ static const char * const operators[][2] =
+ {{"Oabs", "abs"}, {"Oand", "and"}, {"Omod", "mod"},
+ {"Onot", "not"}, {"Oor", "or"}, {"Orem", "rem"},
+ {"Oxor", "xor"}, {"Oeq", "="}, {"One", "/="},
+ {"Olt", "<"}, {"Ole", "<="}, {"Ogt", ">"},
+ {"Oge", ">="}, {"Oadd", "+"}, {"Osubtract", "-"},
+ {"Oconcat", "&"}, {"Omultiply", "*"}, {"Odivide", "/"},
+ {"Oexpon", "**"}, {NULL, NULL}};
+ int k;
+
+ for (k = 0; operators[k][0] != NULL; k++)
+ {
+ size_t slen = strlen (operators[k][0]);
+ if (strncmp (p, operators[k][0], slen) == 0)
+ {
+ p += slen;
+ slen = strlen (operators[k][1]);
+ *d++ = '"';
+ memcpy (d, operators[k][1], slen);
+ d += slen;
+ *d++ = '"';
+ break;
+ }
+ }
+ /* Operator not found. */
+ if (operators[k][0] == NULL)
+ goto unknown;
}
- else if (work->dllimported == 1)
+ else
{
- string_prepend (&decl, "import stub for ");
- work->dllimported = 0;
+ /* Not a GNAT encoding. */
+ goto unknown;
}
- 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 (work)
- 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);
- }
- if (work -> ktypevec != NULL)
- {
- free ((char *) work -> ktypevec);
- }
-}
-
-
-/* Copy the work state and storage. */
-
-static void
-work_stuff_copy_to_from (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
- = (char **) xmalloc (from->typevec_size * sizeof (to->typevec[0]));
-
- for (i = 0; i < from->ntypes; i++)
- {
- int len = strlen (from->typevec[i]) + 1;
-
- to->typevec[i] = xmalloc (len);
- memcpy (to->typevec[i], from->typevec[i], len);
- }
-
- if (from->ksize)
- to->ktypevec
- = (char **) xmalloc (from->ksize * sizeof (to->ktypevec[0]));
-
- for (i = 0; i < from->numk; i++)
- {
- int len = strlen (from->ktypevec[i]) + 1;
-
- to->ktypevec[i] = xmalloc (len);
- memcpy (to->ktypevec[i], from->ktypevec[i], len);
- }
-
- if (from->bsize)
- to->btypevec
- = (char **) xmalloc (from->bsize * sizeof (to->btypevec[0]));
-
- for (i = 0; i < from->numb; i++)
- {
- int len = strlen (from->btypevec[i]) + 1;
-
- to->btypevec[i] = xmalloc (len);
- memcpy (to->btypevec[i], from->btypevec[i], len);
- }
-
- if (from->ntmpl_args)
- to->tmpl_argvec
- = (char **) xmalloc (from->ntmpl_args * sizeof (to->tmpl_argvec[0]));
-
- for (i = 0; i < from->ntmpl_args; i++)
- {
- int len = strlen (from->tmpl_argvec[i]) + 1;
-
- to->tmpl_argvec[i] = xmalloc (len);
- memcpy (to->tmpl_argvec[i], from->tmpl_argvec[i], len);
- }
-
- if (from->previous_argument)
- {
- to->previous_argument = (string*) xmalloc (sizeof (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 (work)
- 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->tmpl_argvec)
- {
- int i;
-
- for (i = 0; i < work->ntmpl_args; i++)
- if (work->tmpl_argvec[i])
- free ((char*) work->tmpl_argvec[i]);
-
- free ((char*) work->tmpl_argvec);
- work->tmpl_argvec = NULL;
- }
- 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 (work)
- struct work_stuff *work;
-{
- delete_non_B_K_work_stuff (work);
- squangle_mop_up (work);
-}
-
-/* Clear out any mangled storage */
-
-static char *
-mop_up (work, declp, success)
- 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 (work, mangled, declp)
- 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);
+ /* The name can be directly followed by some uppercase letters. */
+ if (p[0] == 'T' && p[1] == 'K')
+ {
+ /* Task stuff. */
+ if (p[2] == 'B' && p[3] == 0)
+ {
+ /* Subprogram for task body. */
+ break;
}
+ else if (p[2] == '_' && p[3] == '_')
+ {
+ /* Inner declarations in a task. */
+ p += 4;
+ *d++ = '.';
+ continue;
+ }
+ else
+ goto unknown;
+ }
+ if (p[0] == 'E' && p[1] == 0)
+ {
+ /* Exception name. */
+ goto unknown;
+ }
+ if ((p[0] == 'P' || p[0] == 'N') && p[1] == 0)
+ {
+ /* Protected type subprogram. */
+ break;
+ }
+ if ((*p == 'N' || *p == 'S') && p[1] == 0)
+ {
+ /* Enumerated type name table. */
+ goto unknown;
+ }
+ if (p[0] == 'X')
+ {
+ /* Body nested. */
+ p++;
+ while (p[0] == 'n' || p[0] == 'b')
+ p++;
+ }
+ if (p[0] == 'S' && p[1] != 0 && (p[2] == '_' || p[2] == 0))
+ {
+ /* Stream operations. */
+ const char *name;
+ switch (p[1])
+ {
+ case 'R':
+ name = "'Read";
+ break;
+ case 'W':
+ name = "'Write";
+ break;
+ case 'I':
+ name = "'Input";
+ break;
+ case 'O':
+ name = "'Output";
+ break;
+ default:
+ goto unknown;
+ }
+ p += 2;
+ strcpy (d, name);
+ d += strlen (name);
+ }
+ else if (p[0] == 'D')
+ {
+ /* Controlled type operation. */
+ const char *name;
+ switch (p[1])
+ {
+ case 'F':
+ name = ".Finalize";
+ break;
+ case 'A':
+ name = ".Adjust";
+ break;
+ default:
+ goto unknown;
+ }
+ strcpy (d, name);
+ d += strlen (name);
+ break;
+ }
- 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;
- (*mangled)++;
- break;
- }
- else
- /* fall through */
- {;}
+ if (p[0] == '_')
+ {
+ /* Separator. */
+ if (p[1] == '_')
+ {
+ /* Standard separator. Handled first. */
+ p += 2;
- 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)
+ if (ISDIGIT (*p))
{
- forget_types (work);
+ /* Overloading number. */
+ do
+ p++;
+ while (ISDIGIT (*p) || (p[0] == '_' && ISDIGIT (p[1])));
+ if (*p == 'X')
+ {
+ p++;
+ while (p[0] == 'n' || p[0] == 'b')
+ p++;
+ }
}
- 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 (work, mangled, declp)
- 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 (work, mangled, tname)
- 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 (work, mangled, s, tk)
- 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 (work, mangled, s)
- 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;
+ else if (p[0] == '_' && p[1] != '_')
+ {
+ /* Special names. */
+ static const char * const special[][2] = {
+ { "_elabb", "'Elab_Body" },
+ { "_elabs", "'Elab_Spec" },
+ { "_size", "'Size" },
+ { "_alignment", "'Alignment" },
+ { "_assign", ".\":=\"" },
+ { NULL, NULL }
+ };
+ int k;
+
+ for (k = 0; special[k][0] != NULL; k++)
+ {
+ size_t slen = strlen (special[k][0]);
+ if (strncmp (p, special[k][0], slen) == 0)
+ {
+ p += slen;
+ slen = strlen (special[k][1]);
+ memcpy (d, special[k][1], slen);
+ d += slen;
+ break;
+ }
+ }
+ if (special[k][0] != NULL)
+ break;
+ else
+ goto unknown;
+ }
+ else
+ {
+ *d++ = '.';
+ continue;
+ }
+ }
+ else if (p[1] == 'B' || p[1] == 'E')
+ {
+ /* Entry Body or barrier Evaluation. */
+ p += 2;
+ while (ISDIGIT (*p))
+ p++;
+ if (p[0] == 's' && p[1] == 0)
+ break;
+ else
+ goto unknown;
+ }
+ else
+ goto unknown;
+ }
- if (**mangled == '_')
+ if (p[0] == '.' && ISDIGIT (p[1]))
{
- 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 (work, mangled, s)
- 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 (work, mangled, s, tk)
- 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)
- {
- if (**mangled == 'Q')
- success = demangle_qualified (work, mangled, s,
- /*isfuncname=*/0,
- /*append=*/1);
+ /* Nested subprogram. */
+ p += 2;
+ while (ISDIGIT (*p))
+ p++;
+ }
+ if (*p == 0)
+ {
+ /* End of mangled name. */
+ break;
+ }
else
- {
- int symbol_len = consume_count (mangled);
- if (symbol_len == -1)
- return -1;
- if (symbol_len == 0)
- string_appendn (s, "0", 1);
- else
- {
- char *p = xmalloc (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;
- }
+ goto unknown;
}
+ *d = 0;
+ return demangled;
- 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 (work, mangled, tname, trawname, is_type, remember)
- 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;
- const char *start;
- int is_java_array = 0;
- string temp;
- int bindex = 0;
-
- (*mangled)++;
- if (is_type)
- {
- if (remember)
- bindex = register_Btype (work);
- start = *mangled;
- /* get template name */
- if (**mangled == 'z')
- {
- int idx;
- (*mangled)++;
- (*mangled)++;
+ unknown:
+ XDELETEVEC (demangled);
+ len0 = strlen (mangled);
+ demangled = XNEWVEC (char, len0 + 3);
- 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 (mangled[0] == '<')
+ strcpy (demangled, mangled);
+ else
+ sprintf (demangled, "<%s>", mangled);
- 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 = (char**) xmalloc (r * sizeof (char *));
- 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] = xmalloc (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] = xmalloc (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] = xmalloc (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)
- 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 (work, mangled, n, anchor, args)
- struct work_stuff *work;
- const char *mangled;
- int n;
- const char **anchor, **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 (work, mangled, n, declp)
- 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;
-
- /* 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;
- 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)++;
- return;
- }
- /* ARM template? (Also handles HP cfront extensions) */
- else if (arm_pt (work, *mangled, n, &p, &args))
- {
- 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;
- 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)
- 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, ">");
- }
- 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 (work, mangled, declp)
- 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 (work, mangled, declp)
- 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 (work, mangled, declp, scan)
- 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)
- {
- demangle_function_name (work, mangled, declp, scan);
- return 1;
- }
-
- /* 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])
- {
- 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 (work, mangled, declp)
- 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 (work, mangled, declp)
- struct work_stuff *work;
- const char **mangled;
- string *declp;
-{
- int n;
- int success = 1;
- const char *p;
-
- if ((*mangled)[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'
- && 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
- {
- 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
- {
- 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(work, mangled, result, namelength)
- struct work_stuff *work;
- const char **mangled;
- string *result;
- int namelength;
-{
- char * recurse = (char *)NULL;
- char * recurse_dem = (char *)NULL;
-
- recurse = (char *) xmalloc (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 (mangled, declp)
- 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 (work, mangled, result, isfuncname, append)
- 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 (type, 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 (work, mangled, result)
- struct work_stuff *work;
- const char **mangled;
- string *result;
-{
- int n;
- 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;
- 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 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 >= work -> ntypes)
- {
- success = 0;
- }
- else
- {
- 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':
- case 'O':
- {
- 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
- 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;
- }
- }
- 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 >= 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 (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 (work, mangled, result)
- struct work_stuff *work;
- const char **mangled;
- string *result;
-{
- int done = 0;
- int success = 1;
- char buf[10];
- 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;
- }
- 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 (work, mangled, result)
- 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 (work, mangled, result)
- 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)
- 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 = (char *) xmalloc (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 (args, arg)
- 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 (work, mangled, result)
- 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 = (string*) xmalloc (sizeof (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
-remember_type (work, start, len)
- 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
- = (char **) xmalloc (sizeof (char *) * work -> typevec_size);
- }
- else
- {
- work -> typevec_size *= 2;
- work -> typevec
- = (char **) xrealloc ((char *)work -> typevec,
- sizeof (char *) * work -> typevec_size);
- }
- }
- tem = xmalloc (len + 1);
- memcpy (tem, start, len);
- tem[len] = '\0';
- work -> typevec[work -> ntypes++] = tem;
-}
-
-
-/* Remember a K type class qualifier. */
-static void
-remember_Ktype (work, start, len)
- 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
- = (char **) xmalloc (sizeof (char *) * work -> ksize);
- }
- else
- {
- work -> ksize *= 2;
- work -> ktypevec
- = (char **) xrealloc ((char *)work -> ktypevec,
- sizeof (char *) * work -> ksize);
- }
- }
- tem = xmalloc (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 (work)
- struct work_stuff *work;
-{
- int ret;
-
- if (work -> numb >= work -> bsize)
- {
- if (work -> bsize == 0)
- {
- work -> bsize = 5;
- work -> btypevec
- = (char **) xmalloc (sizeof (char *) * work -> bsize);
- }
- else
- {
- work -> bsize *= 2;
- work -> btypevec
- = (char **) xrealloc ((char *)work -> btypevec,
- sizeof (char *) * 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 (work, start, len, index)
- struct work_stuff *work;
- const char *start;
- int len, index;
-{
- char *tem;
-
- tem = xmalloc (len + 1);
- 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 (work)
- 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 (work)
- 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 (work, mangled, declp)
- 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, ", ");
- }
- if (!do_arg (work, &tem, &arg))
- {
- return (0);
- }
- 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 (work, mangled, declp)
- struct work_stuff *work;
- const char **mangled;
- string *declp;
-{
- string* saved_previous_argument;
- int result;
- int saved_nrepeats;
-
- /* 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;
-
- return result;
-}
-
-static void
-demangle_function_name (work, mangled, declp, scan)
- 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;
- }
- else if (strcmp (declp -> b, "__dt") == 0)
- {
- work -> destructor += 1;
- string_clear (declp);
- return;
- }
- }
-
- 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;
- }
- }
- }
- }
- }
-}
-
-/* a mini string-handling package */
-
-static void
-string_need (s, n)
- string *s;
- int n;
-{
- int tem;
-
- if (s->b == NULL)
- {
- if (n < 32)
- {
- n = 32;
- }
- s->p = s->b = xmalloc (n);
- s->e = s->b + n;
- }
- else if (s->e - s->p < n)
- {
- tem = s->p - s->b;
- n += tem;
- n *= 2;
- s->b = xrealloc (s->b, n);
- s->p = s->b + tem;
- s->e = s->b + n;
- }
-}
-
-static void
-string_delete (s)
- string *s;
-{
- if (s->b != NULL)
- {
- free (s->b);
- s->b = s->e = s->p = NULL;
- }
-}
-
-static void
-string_init (s)
- string *s;
-{
- s->b = s->p = s->e = NULL;
-}
-
-static void
-string_clear (s)
- string *s;
-{
- s->p = s->b;
-}
-
-#if 0
-
-static int
-string_empty (s)
- string *s;
-{
- return (s->b == s->p);
-}
-
-#endif
-
-static void
-string_append (p, s)
- 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 (p, s)
- string *p, *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 (p, s, n)
- 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 (p, s)
- string *p;
- const char *s;
-{
- if (s != NULL && *s != '\0')
- {
- string_prependn (p, s, strlen (s));
- }
-}
-
-static void
-string_prepends (p, s)
- string *p, *s;
-{
- if (s->b != s->p)
- {
- string_prependn (p, s->b, s->p - s->b);
- }
-}
-
-static void
-string_prependn (p, s, n)
- 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 (s, idx)
- string *s;
- int idx;
-{
- char buf[INTBUF_SIZE + 1 /* 'T' */];
- sprintf(buf, "T%d", idx);
- string_append (s, buf);
+ return demangled;
}
projects / thirdparty / gcc.git / blobdiff