3907 lines
89 KiB
C
3907 lines
89 KiB
C
/* Demangler for GNU C++
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Copyright 1989, 1991, 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
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Written by James Clark (jjc@jclark.uucp)
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Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling
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This file is part of the libiberty library.
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Libiberty is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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Libiberty is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with libiberty; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This file exports two functions; cplus_mangle_opname and cplus_demangle.
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This file imports xmalloc and xrealloc, which are like malloc and
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realloc except that they generate a fatal error if there is no
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available memory. */
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/* This file lives in both GCC and libiberty. When making changes, please
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try not to break either. */
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#include <ctype.h>
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#include <sys/types.h>
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#include <string.h>
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#include <stdio.h>
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#include <demangle.h>
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#undef CURRENT_DEMANGLING_STYLE
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#define CURRENT_DEMANGLING_STYLE work->options
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extern char *xmalloc PARAMS((unsigned));
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extern char *xrealloc PARAMS((char *, unsigned));
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static const char *mystrstr PARAMS ((const char *, const char *));
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static const char *
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mystrstr (s1, s2)
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const char *s1, *s2;
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{
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register const char *p = s1;
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register int len = strlen (s2);
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for (; (p = strchr (p, *s2)) != 0; p++)
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{
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if (strncmp (p, s2, len) == 0)
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{
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return (p);
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}
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}
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return (0);
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}
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/* In order to allow a single demangler executable to demangle strings
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using various common values of CPLUS_MARKER, as well as any specific
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one set at compile time, we maintain a string containing all the
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commonly used ones, and check to see if the marker we are looking for
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is in that string. CPLUS_MARKER is usually '$' on systems where the
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assembler can deal with that. Where the assembler can't, it's usually
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'.' (but on many systems '.' is used for other things). We put the
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current defined CPLUS_MARKER first (which defaults to '$'), followed
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by the next most common value, followed by an explicit '$' in case
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the value of CPLUS_MARKER is not '$'.
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We could avoid this if we could just get g++ to tell us what the actual
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cplus marker character is as part of the debug information, perhaps by
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ensuring that it is the character that terminates the gcc<n>_compiled
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marker symbol (FIXME). */
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#if !defined (CPLUS_MARKER)
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#define CPLUS_MARKER '$'
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#endif
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enum demangling_styles current_demangling_style = gnu_demangling;
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static char cplus_markers[] = { CPLUS_MARKER, '.', '$', '\0' };
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void
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set_cplus_marker_for_demangling (ch)
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int ch;
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{
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cplus_markers[0] = ch;
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}
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typedef struct string /* Beware: these aren't required to be */
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{ /* '\0' terminated. */
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char *b; /* pointer to start of string */
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char *p; /* pointer after last character */
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char *e; /* pointer after end of allocated space */
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} string;
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/* Stuff that is shared between sub-routines.
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Using a shared structure allows cplus_demangle to be reentrant. */
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struct work_stuff
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{
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int options;
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char **typevec;
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char **ktypevec;
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char **btypevec;
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int numk;
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int numb;
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int ksize;
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int bsize;
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int ntypes;
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int typevec_size;
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int constructor;
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int destructor;
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int static_type; /* A static member function */
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int const_type; /* A const member function */
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int volatile_type; /* A volatile member function */
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char **tmpl_argvec; /* Template function arguments. */
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int ntmpl_args; /* The number of template function arguments. */
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int forgetting_types; /* Nonzero if we are not remembering the types
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we see. */
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string* previous_argument; /* The last function argument demangled. */
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int nrepeats; /* The number of times to repeat the previous
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argument. */
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};
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#define PRINT_ANSI_QUALIFIERS (work -> options & DMGL_ANSI)
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#define PRINT_ARG_TYPES (work -> options & DMGL_PARAMS)
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static const struct optable
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{
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const char *in;
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const char *out;
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int flags;
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} optable[] = {
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{"nw", " new", DMGL_ANSI}, /* new (1.92, ansi) */
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{"dl", " delete", DMGL_ANSI}, /* new (1.92, ansi) */
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{"new", " new", 0}, /* old (1.91, and 1.x) */
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{"delete", " delete", 0}, /* old (1.91, and 1.x) */
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{"vn", " new []", DMGL_ANSI}, /* GNU, pending ansi */
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{"vd", " delete []", DMGL_ANSI}, /* GNU, pending ansi */
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{"as", "=", DMGL_ANSI}, /* ansi */
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{"ne", "!=", DMGL_ANSI}, /* old, ansi */
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{"eq", "==", DMGL_ANSI}, /* old, ansi */
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{"ge", ">=", DMGL_ANSI}, /* old, ansi */
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{"gt", ">", DMGL_ANSI}, /* old, ansi */
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{"le", "<=", DMGL_ANSI}, /* old, ansi */
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{"lt", "<", DMGL_ANSI}, /* old, ansi */
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{"plus", "+", 0}, /* old */
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{"pl", "+", DMGL_ANSI}, /* ansi */
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{"apl", "+=", DMGL_ANSI}, /* ansi */
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{"minus", "-", 0}, /* old */
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{"mi", "-", DMGL_ANSI}, /* ansi */
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{"ami", "-=", DMGL_ANSI}, /* ansi */
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{"mult", "*", 0}, /* old */
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{"ml", "*", DMGL_ANSI}, /* ansi */
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{"amu", "*=", DMGL_ANSI}, /* ansi (ARM/Lucid) */
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{"aml", "*=", DMGL_ANSI}, /* ansi (GNU/g++) */
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{"convert", "+", 0}, /* old (unary +) */
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{"negate", "-", 0}, /* old (unary -) */
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{"trunc_mod", "%", 0}, /* old */
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{"md", "%", DMGL_ANSI}, /* ansi */
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{"amd", "%=", DMGL_ANSI}, /* ansi */
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{"trunc_div", "/", 0}, /* old */
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{"dv", "/", DMGL_ANSI}, /* ansi */
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{"adv", "/=", DMGL_ANSI}, /* ansi */
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{"truth_andif", "&&", 0}, /* old */
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{"aa", "&&", DMGL_ANSI}, /* ansi */
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{"truth_orif", "||", 0}, /* old */
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{"oo", "||", DMGL_ANSI}, /* ansi */
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{"truth_not", "!", 0}, /* old */
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{"nt", "!", DMGL_ANSI}, /* ansi */
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{"postincrement","++", 0}, /* old */
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{"pp", "++", DMGL_ANSI}, /* ansi */
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{"postdecrement","--", 0}, /* old */
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{"mm", "--", DMGL_ANSI}, /* ansi */
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{"bit_ior", "|", 0}, /* old */
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{"or", "|", DMGL_ANSI}, /* ansi */
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{"aor", "|=", DMGL_ANSI}, /* ansi */
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{"bit_xor", "^", 0}, /* old */
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{"er", "^", DMGL_ANSI}, /* ansi */
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{"aer", "^=", DMGL_ANSI}, /* ansi */
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{"bit_and", "&", 0}, /* old */
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{"ad", "&", DMGL_ANSI}, /* ansi */
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{"aad", "&=", DMGL_ANSI}, /* ansi */
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{"bit_not", "~", 0}, /* old */
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{"co", "~", DMGL_ANSI}, /* ansi */
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{"call", "()", 0}, /* old */
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{"cl", "()", DMGL_ANSI}, /* ansi */
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{"alshift", "<<", 0}, /* old */
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{"ls", "<<", DMGL_ANSI}, /* ansi */
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{"als", "<<=", DMGL_ANSI}, /* ansi */
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{"arshift", ">>", 0}, /* old */
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{"rs", ">>", DMGL_ANSI}, /* ansi */
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{"ars", ">>=", DMGL_ANSI}, /* ansi */
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{"component", "->", 0}, /* old */
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{"pt", "->", DMGL_ANSI}, /* ansi; Lucid C++ form */
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{"rf", "->", DMGL_ANSI}, /* ansi; ARM/GNU form */
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{"indirect", "*", 0}, /* old */
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{"method_call", "->()", 0}, /* old */
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{"addr", "&", 0}, /* old (unary &) */
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{"array", "[]", 0}, /* old */
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{"vc", "[]", DMGL_ANSI}, /* ansi */
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{"compound", ", ", 0}, /* old */
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{"cm", ", ", DMGL_ANSI}, /* ansi */
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{"cond", "?:", 0}, /* old */
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{"cn", "?:", DMGL_ANSI}, /* pseudo-ansi */
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{"max", ">?", 0}, /* old */
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{"mx", ">?", DMGL_ANSI}, /* pseudo-ansi */
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{"min", "<?", 0}, /* old */
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{"mn", "<?", DMGL_ANSI}, /* pseudo-ansi */
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{"nop", "", 0}, /* old (for operator=) */
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{"rm", "->*", DMGL_ANSI}, /* ansi */
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{"sz", "sizeof ", DMGL_ANSI} /* pseudo-ansi */
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};
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#define STRING_EMPTY(str) ((str) -> b == (str) -> p)
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#define PREPEND_BLANK(str) {if (!STRING_EMPTY(str)) \
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string_prepend(str, " ");}
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#define APPEND_BLANK(str) {if (!STRING_EMPTY(str)) \
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string_append(str, " ");}
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#define LEN_STRING(str) ( (STRING_EMPTY(str))?0:((str)->p - (str)->b))
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/* The scope separator appropriate for the language being demangled. */
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#define SCOPE_STRING(work) "::"
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#define ARM_VTABLE_STRING "__vtbl__" /* Lucid/ARM virtual table prefix */
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#define ARM_VTABLE_STRLEN 8 /* strlen (ARM_VTABLE_STRING) */
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/* Prototypes for local functions */
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static char *
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mop_up PARAMS ((struct work_stuff *, string *, int));
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static void
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squangle_mop_up PARAMS ((struct work_stuff *));
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#if 0
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static int
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demangle_method_args PARAMS ((struct work_stuff *, const char **, string *));
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#endif
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static char *
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internal_cplus_demangle PARAMS ((struct work_stuff *, const char *));
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static int
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demangle_template_template_parm PARAMS ((struct work_stuff *work,
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const char **, string *));
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static int
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demangle_template PARAMS ((struct work_stuff *work, const char **, string *,
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string *, int, int));
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static int
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arm_pt PARAMS ((struct work_stuff *, const char *, int, const char **,
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const char **));
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static void
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demangle_arm_pt PARAMS ((struct work_stuff *, const char **, int, string *));
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static int
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demangle_class_name PARAMS ((struct work_stuff *, const char **, string *));
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static int
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demangle_qualified PARAMS ((struct work_stuff *, const char **, string *,
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int, int));
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static int
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demangle_class PARAMS ((struct work_stuff *, const char **, string *));
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static int
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demangle_fund_type PARAMS ((struct work_stuff *, const char **, string *));
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static int
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demangle_signature PARAMS ((struct work_stuff *, const char **, string *));
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static int
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demangle_prefix PARAMS ((struct work_stuff *, const char **, string *));
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static int
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gnu_special PARAMS ((struct work_stuff *, const char **, string *));
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static int
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arm_special PARAMS ((const char **, string *));
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static void
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string_need PARAMS ((string *, int));
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static void
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string_delete PARAMS ((string *));
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static void
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string_init PARAMS ((string *));
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static void
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string_clear PARAMS ((string *));
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#if 0
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static int
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string_empty PARAMS ((string *));
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#endif
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static void
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string_append PARAMS ((string *, const char *));
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static void
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string_appends PARAMS ((string *, string *));
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static void
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string_appendn PARAMS ((string *, const char *, int));
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static void
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string_prepend PARAMS ((string *, const char *));
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static void
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string_prependn PARAMS ((string *, const char *, int));
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static int
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get_count PARAMS ((const char **, int *));
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static int
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consume_count PARAMS ((const char **));
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static int
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consume_count_with_underscores PARAMS ((const char**));
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static int
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demangle_args PARAMS ((struct work_stuff *, const char **, string *));
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static int
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demangle_nested_args PARAMS ((struct work_stuff*, const char**, string*));
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static int
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do_type PARAMS ((struct work_stuff *, const char **, string *));
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static int
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do_arg PARAMS ((struct work_stuff *, const char **, string *));
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static void
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demangle_function_name PARAMS ((struct work_stuff *, const char **, string *,
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const char *));
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static void
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remember_type PARAMS ((struct work_stuff *, const char *, int));
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static void
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remember_Btype PARAMS ((struct work_stuff *, const char *, int, int));
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static int
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register_Btype PARAMS ((struct work_stuff *));
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static void
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remember_Ktype PARAMS ((struct work_stuff *, const char *, int));
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static void
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forget_types PARAMS ((struct work_stuff *));
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static void
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forget_B_and_K_types PARAMS ((struct work_stuff *));
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static void
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string_prepends PARAMS ((string *, string *));
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static int
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demangle_template_value_parm PARAMS ((struct work_stuff*,
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const char**, string*));
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/* Translate count to integer, consuming tokens in the process.
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Conversion terminates on the first non-digit character.
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Trying to consume something that isn't a count results in
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no consumption of input and a return of 0. */
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static int
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consume_count (type)
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const char **type;
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{
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int count = 0;
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while (isdigit (**type))
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{
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count *= 10;
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count += **type - '0';
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(*type)++;
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}
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return (count);
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}
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/* Like consume_count, but for counts that are preceded and followed
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by '_' if they are greater than 10. Also, -1 is returned for
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failure, since 0 can be a valid value. */
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static int
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consume_count_with_underscores (mangled)
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const char **mangled;
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{
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int idx;
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if (**mangled == '_')
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{
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(*mangled)++;
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if (!isdigit (**mangled))
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return -1;
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idx = consume_count (mangled);
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if (**mangled != '_')
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/* The trailing underscore was missing. */
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return -1;
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(*mangled)++;
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}
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else
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{
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if (**mangled < '0' || **mangled > '9')
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return -1;
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idx = **mangled - '0';
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(*mangled)++;
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}
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return idx;
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}
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int
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cplus_demangle_opname (opname, result, options)
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const char *opname;
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char *result;
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int options;
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{
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int len, len1, ret;
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string type;
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struct work_stuff work[1];
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const char *tem;
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len = strlen(opname);
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result[0] = '\0';
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ret = 0;
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memset ((char *) work, 0, sizeof (work));
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work->options = options;
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if (opname[0] == '_' && opname[1] == '_'
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&& opname[2] == 'o' && opname[3] == 'p')
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{
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/* ANSI. */
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/* type conversion operator. */
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tem = opname + 4;
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if (do_type (work, &tem, &type))
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{
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strcat (result, "operator ");
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strncat (result, type.b, type.p - type.b);
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string_delete (&type);
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ret = 1;
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}
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}
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else if (opname[0] == '_' && opname[1] == '_'
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&& opname[2] >= 'a' && opname[2] <= 'z'
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&& opname[3] >= 'a' && opname[3] <= 'z')
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{
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if (opname[4] == '\0')
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{
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/* Operator. */
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size_t i;
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for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++)
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{
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if (strlen (optable[i].in) == 2
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&& memcmp (optable[i].in, opname + 2, 2) == 0)
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{
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strcat (result, "operator");
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strcat (result, optable[i].out);
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ret = 1;
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break;
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}
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}
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}
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else
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{
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if (opname[2] == 'a' && opname[5] == '\0')
|
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{
|
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/* Assignment. */
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size_t i;
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for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++)
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{
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if (strlen (optable[i].in) == 3
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&& memcmp (optable[i].in, opname + 2, 3) == 0)
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{
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strcat (result, "operator");
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strcat (result, optable[i].out);
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ret = 1;
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break;
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}
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}
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}
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}
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}
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else if (len >= 3
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&& opname[0] == 'o'
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&& opname[1] == 'p'
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&& strchr (cplus_markers, opname[2]) != NULL)
|
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{
|
|
/* 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 < sizeof (optable) / sizeof (optable[0]); i++)
|
|
{
|
|
len1 = len - 10;
|
|
if (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 < sizeof (optable) / sizeof (optable[0]); i++)
|
|
{
|
|
len1 = len - 3;
|
|
if (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 < sizeof (optable) / sizeof (optable[0]); i++)
|
|
{
|
|
if (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);
|
|
}
|
|
|
|
/* char *cplus_demangle (const char *mangled, int options)
|
|
|
|
If MANGLED is a mangled function name produced by GNU C++, then
|
|
a pointer to a malloced string giving a C++ representation
|
|
of the name will be returned; otherwise NULL will be returned.
|
|
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;
|
|
{
|
|
char *ret;
|
|
struct work_stuff work[1];
|
|
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;
|
|
|
|
ret = internal_cplus_demangle (work, mangled);
|
|
squangle_mop_up (work);
|
|
return (ret);
|
|
}
|
|
|
|
|
|
/* 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 intializes 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;
|
|
int saved_volatile_type;
|
|
s1 = work->constructor;
|
|
s2 = work->destructor;
|
|
s3 = work->static_type;
|
|
s4 = work->const_type;
|
|
saved_volatile_type = work->volatile_type;
|
|
work->constructor = work->destructor = 0;
|
|
work->static_type = work->const_type = 0;
|
|
work->volatile_type = 0;
|
|
|
|
if ((mangled != NULL) && (*mangled != '\0'))
|
|
{
|
|
string_init (&decl);
|
|
|
|
/* First check to see if gnu style demangling is active and if the
|
|
string to be demangled contains a CPLUS_MARKER. If so, attempt to
|
|
recognize one of the gnu special forms rather than looking for a
|
|
standard prefix. In particular, don't worry about whether there
|
|
is a "__" string in the mangled string. Consider "_$_5__foo" for
|
|
example. */
|
|
|
|
if ((AUTO_DEMANGLING || GNU_DEMANGLING))
|
|
{
|
|
success = gnu_special (work, &mangled, &decl);
|
|
}
|
|
if (!success)
|
|
{
|
|
success = demangle_prefix (work, &mangled, &decl);
|
|
}
|
|
if (success && (*mangled != '\0'))
|
|
{
|
|
success = demangle_signature (work, &mangled, &decl);
|
|
}
|
|
if (work->constructor == 2)
|
|
{
|
|
string_prepend (&decl, "global constructors keyed to ");
|
|
work->constructor = 0;
|
|
}
|
|
else if (work->destructor == 2)
|
|
{
|
|
string_prepend (&decl, "global destructors keyed to ");
|
|
work->destructor = 0;
|
|
}
|
|
demangled = mop_up (work, &decl, success);
|
|
}
|
|
work->constructor = s1;
|
|
work->destructor = s2;
|
|
work->static_type = s3;
|
|
work->const_type = s4;
|
|
work->volatile_type = saved_volatile_type;
|
|
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);
|
|
}
|
|
}
|
|
|
|
/* Clear out any mangled storage */
|
|
|
|
static char *
|
|
mop_up (work, declp, success)
|
|
struct work_stuff *work;
|
|
string *declp;
|
|
int success;
|
|
{
|
|
char *demangled = NULL;
|
|
|
|
/* Discard the remembered types, if any. */
|
|
|
|
forget_types (work);
|
|
if (work -> typevec != NULL)
|
|
{
|
|
free ((char *) work -> typevec);
|
|
work -> typevec = NULL;
|
|
}
|
|
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);
|
|
}
|
|
|
|
/* 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':
|
|
if (**mangled == 'C')
|
|
work -> const_type = 1;
|
|
else
|
|
work->volatile_type = 1;
|
|
|
|
/* a qualified member function */
|
|
if (oldmangled == NULL)
|
|
oldmangled = *mangled;
|
|
(*mangled)++;
|
|
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;
|
|
}
|
|
success = demangle_class (work, mangled, declp);
|
|
if (success)
|
|
{
|
|
remember_type (work, oldmangled, *mangled - oldmangled);
|
|
}
|
|
if (AUTO_DEMANGLING || GNU_DEMANGLING)
|
|
{
|
|
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);
|
|
}
|
|
oldmangled = NULL;
|
|
expect_func = 1;
|
|
}
|
|
break;
|
|
|
|
case 'F':
|
|
/* Function */
|
|
/* ARM 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 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)
|
|
{
|
|
forget_types (work);
|
|
}
|
|
success = demangle_args (work, mangled, declp);
|
|
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 (GNU_DEMANGLING && expect_return_type)
|
|
{
|
|
/* Read the return type. */
|
|
string return_type;
|
|
string_init (&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. */
|
|
success = 0;
|
|
break;
|
|
|
|
case 'H':
|
|
if (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 */
|
|
{;}
|
|
|
|
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-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;
|
|
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, 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 && work -> static_type && PRINT_ARG_TYPES)
|
|
string_append (declp, " static");
|
|
if (success && work -> const_type && PRINT_ARG_TYPES)
|
|
string_append (declp, " const");
|
|
else if (success && work->volatile_type && PRINT_ARG_TYPES)
|
|
string_append (declp, " volatile");
|
|
|
|
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_integral_value (work, mangled, s)
|
|
struct work_stuff *work;
|
|
const char** mangled;
|
|
string* s;
|
|
{
|
|
int success;
|
|
|
|
if (**mangled == 'E')
|
|
{
|
|
int need_operator = 0;
|
|
|
|
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 < sizeof (optable) / sizeof (optable [0]);
|
|
++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);
|
|
}
|
|
|
|
if (**mangled != 'W')
|
|
success = 0;
|
|
else
|
|
{
|
|
string_appendn (s, ")", 1);
|
|
(*mangled)++;
|
|
}
|
|
}
|
|
else if (**mangled == 'Q' || **mangled == 'K')
|
|
success = demangle_qualified (work, mangled, s, 0, 1);
|
|
else
|
|
{
|
|
success = 0;
|
|
|
|
if (**mangled == 'm')
|
|
{
|
|
string_appendn (s, "-", 1);
|
|
(*mangled)++;
|
|
}
|
|
while (isdigit (**mangled))
|
|
{
|
|
string_appendn (s, *mangled, 1);
|
|
(*mangled)++;
|
|
success = 1;
|
|
}
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
static int
|
|
demangle_template_value_parm (work, mangled, s)
|
|
struct work_stuff *work;
|
|
const char **mangled;
|
|
string* s;
|
|
{
|
|
const char *old_p = *mangled;
|
|
int is_pointer = 0;
|
|
int is_real = 0;
|
|
int is_integral = 0;
|
|
int is_char = 0;
|
|
int is_bool = 0;
|
|
int done = 0;
|
|
int success = 1;
|
|
|
|
while (*old_p && !done)
|
|
{
|
|
switch (*old_p)
|
|
{
|
|
case 'P':
|
|
case 'p':
|
|
case 'R':
|
|
done = is_pointer = 1;
|
|
break;
|
|
case 'C': /* const */
|
|
case 'S': /* explicitly signed [char] */
|
|
case 'U': /* unsigned */
|
|
case 'V': /* volatile */
|
|
case 'F': /* function */
|
|
case 'M': /* member function */
|
|
case 'O': /* ??? */
|
|
case 'J': /* complex */
|
|
old_p++;
|
|
continue;
|
|
case 'E': /* expression */
|
|
case 'Q': /* qualified name */
|
|
case 'K': /* qualified name */
|
|
done = is_integral = 1;
|
|
break;
|
|
case 'B': /* remembered type */
|
|
case 'T': /* remembered type */
|
|
abort ();
|
|
break;
|
|
case 'v': /* void */
|
|
abort ();
|
|
break;
|
|
case 'x': /* long long */
|
|
case 'l': /* long */
|
|
case 'i': /* int */
|
|
case 's': /* short */
|
|
case 'w': /* wchar_t */
|
|
done = is_integral = 1;
|
|
break;
|
|
case 'b': /* bool */
|
|
done = is_bool = 1;
|
|
break;
|
|
case 'c': /* char */
|
|
done = is_char = 1;
|
|
break;
|
|
case 'r': /* long double */
|
|
case 'd': /* double */
|
|
case 'f': /* float */
|
|
done = is_real = 1;
|
|
break;
|
|
default:
|
|
/* it's probably user defined type, let's assume
|
|
it's integral, it seems hard to figure out
|
|
what it really is */
|
|
done = is_integral = 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
|
|
{
|
|
char buf[10];
|
|
sprintf(buf, "T%d", idx);
|
|
string_append (s, buf);
|
|
}
|
|
}
|
|
else if (is_integral)
|
|
success = demangle_integral_value (work, mangled, s);
|
|
else if (is_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)
|
|
return -1;
|
|
tmp[0] = (char)val;
|
|
tmp[1] = '\0';
|
|
string_appendn (s, &tmp[0], 1);
|
|
string_appendn (s, "'", 1);
|
|
}
|
|
else if (is_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 (is_real)
|
|
{
|
|
if (**mangled == 'm')
|
|
{
|
|
string_appendn (s, "-", 1);
|
|
(*mangled)++;
|
|
}
|
|
while (isdigit (**mangled))
|
|
{
|
|
string_appendn (s, *mangled, 1);
|
|
(*mangled)++;
|
|
}
|
|
if (**mangled == '.') /* fraction */
|
|
{
|
|
string_appendn (s, ".", 1);
|
|
(*mangled)++;
|
|
while (isdigit (**mangled))
|
|
{
|
|
string_appendn (s, *mangled, 1);
|
|
(*mangled)++;
|
|
}
|
|
}
|
|
if (**mangled == 'e') /* exponent */
|
|
{
|
|
string_appendn (s, "e", 1);
|
|
(*mangled)++;
|
|
while (isdigit (**mangled))
|
|
{
|
|
string_appendn (s, *mangled, 1);
|
|
(*mangled)++;
|
|
}
|
|
}
|
|
}
|
|
else if (is_pointer)
|
|
{
|
|
int symbol_len = consume_count (mangled);
|
|
if (symbol_len == 0)
|
|
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';
|
|
q = internal_cplus_demangle (work, p);
|
|
string_appendn (s, "&", 1);
|
|
if (q)
|
|
{
|
|
string_append (s, q);
|
|
free (q);
|
|
}
|
|
else
|
|
string_append (s, p);
|
|
free (p);
|
|
}
|
|
*mangled += symbol_len;
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
/* Demangle the template name in MANGLED. The full name of the
|
|
template (e.g., S<int>) is placed in TNAME. The name without the
|
|
template parameters (e.g. S) is placed in TRAWNAME if TRAWNAME is
|
|
non-NULL. If IS_TYPE is nonzero, this template is a type template,
|
|
not a function template. If both IS_TYPE and REMEMBER are nonzero,
|
|
the tmeplate 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;
|
|
string temp;
|
|
int bindex;
|
|
|
|
(*mangled)++;
|
|
if (is_type)
|
|
{
|
|
if (remember)
|
|
bindex = register_Btype (work);
|
|
start = *mangled;
|
|
/* get template name */
|
|
if (**mangled == 'z')
|
|
{
|
|
int idx;
|
|
(*mangled)++;
|
|
(*mangled)++;
|
|
|
|
idx = consume_count_with_underscores (mangled);
|
|
if (idx == -1
|
|
|| (work->tmpl_argvec && idx >= work->ntmpl_args)
|
|
|| consume_count_with_underscores (mangled) == -1)
|
|
return (0);
|
|
|
|
if (work->tmpl_argvec)
|
|
{
|
|
string_append (tname, work->tmpl_argvec[idx]);
|
|
if (trawname)
|
|
string_append (trawname, work->tmpl_argvec[idx]);
|
|
}
|
|
else
|
|
{
|
|
char buf[10];
|
|
sprintf(buf, "T%d", idx);
|
|
string_append (tname, buf);
|
|
if (trawname)
|
|
string_append (trawname, buf);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ((r = consume_count (mangled)) == 0 || strlen (*mangled) < r)
|
|
{
|
|
return (0);
|
|
}
|
|
string_appendn (tname, *mangled, r);
|
|
if (trawname)
|
|
string_appendn (trawname, *mangled, r);
|
|
*mangled += r;
|
|
}
|
|
}
|
|
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 && 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);
|
|
/*
|
|
if (success)
|
|
{
|
|
string_appends (s, &temp);
|
|
}
|
|
*/
|
|
string_delete(&temp);
|
|
if (!success)
|
|
{
|
|
break;
|
|
}
|
|
/*
|
|
string_append (s, "=");
|
|
*/
|
|
|
|
if (!is_type)
|
|
{
|
|
s = ¶m;
|
|
string_init (s);
|
|
}
|
|
else
|
|
s = tname;
|
|
|
|
success = demangle_template_value_parm (work, mangled, s);
|
|
|
|
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 (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;
|
|
{
|
|
/* ARM template? */
|
|
if (ARM_DEMANGLING && (*anchor = mystrstr (mangled, "__pt__")))
|
|
{
|
|
int len;
|
|
*args = *anchor + 6;
|
|
len = consume_count (args);
|
|
if (*args + len == mangled + n && **args == '_')
|
|
{
|
|
++*args;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
demangle_arm_pt (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;
|
|
|
|
/* ARM template? */
|
|
if (arm_pt (work, *mangled, n, &p, &args))
|
|
{
|
|
string arg;
|
|
string_init (&arg);
|
|
string_appendn (declp, *mangled, p - *mangled);
|
|
string_append (declp, "<");
|
|
/* should do error checking here */
|
|
while (args < e) {
|
|
string_clear (&arg);
|
|
do_type (work, &args, &arg);
|
|
string_appends (declp, &arg);
|
|
string_append (declp, ",");
|
|
}
|
|
string_delete (&arg);
|
|
--declp->p;
|
|
string_append (declp, ">");
|
|
}
|
|
else
|
|
{
|
|
string_appendn (declp, *mangled, n);
|
|
}
|
|
*mangled += n;
|
|
}
|
|
|
|
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 (strlen (*mangled) >= n)
|
|
{
|
|
demangle_arm_pt (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;
|
|
|
|
string_init (&class_name);
|
|
btype = register_Btype (work);
|
|
if (demangle_class_name (work, mangled, &class_name))
|
|
{
|
|
if ((work->constructor & 1) || (work->destructor & 1))
|
|
{
|
|
string_prepends (declp, &class_name);
|
|
if (work -> destructor & 1)
|
|
{
|
|
string_prepend (declp, "~");
|
|
work -> destructor -= 1;
|
|
}
|
|
else
|
|
{
|
|
work -> constructor -= 1;
|
|
}
|
|
}
|
|
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);
|
|
}
|
|
|
|
/*
|
|
|
|
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.
|
|
|
|
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) >= 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 && 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 && 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 = mystrstr (*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 (scan[0]) && (scan[0] != 't'))
|
|
{
|
|
success = 0;
|
|
}
|
|
}
|
|
else if ((scan == *mangled)
|
|
&& (isdigit (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) && isdigit (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))
|
|
work -> constructor += 1;
|
|
*mangled = scan + 2;
|
|
}
|
|
}
|
|
else if ((scan == *mangled) && !isdigit (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)
|
|
|| (arm_special (mangled, declp) == 0))
|
|
{
|
|
while (*scan == '_')
|
|
{
|
|
scan++;
|
|
}
|
|
if ((scan = mystrstr (scan, "__")) == NULL || (*(scan + 2) == '\0'))
|
|
{
|
|
/* No separator (I.E. "__not_mangled"), or empty signature
|
|
(I.E. "__not_mangled_either__") */
|
|
success = 0;
|
|
}
|
|
else
|
|
{
|
|
const char *tmp;
|
|
/* Look for the LAST occurrence of __, allowing names to have
|
|
the '__' sequence embedded in them.*/
|
|
while ((tmp = mystrstr (scan+2, "__")) != NULL)
|
|
scan = tmp;
|
|
if (*(scan + 2) == '\0')
|
|
success = 0;
|
|
else
|
|
demangle_function_name (work, mangled, declp, scan);
|
|
}
|
|
}
|
|
}
|
|
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_pt (work, mangled, strlen (*mangled), declp);
|
|
}
|
|
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. */
|
|
demangle_function_name (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')
|
|
{
|
|
p = strpbrk (*mangled, cplus_markers);
|
|
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(*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 > strlen (*mangled))
|
|
{
|
|
success = 1;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
n = strcspn (*mangled, cplus_markers);
|
|
}
|
|
string_appendn (declp, *mangled, n);
|
|
(*mangled) += n;
|
|
}
|
|
|
|
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);
|
|
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, consume_count (mangled));
|
|
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 = demangle_fund_type (work, mangled, declp);
|
|
break;
|
|
}
|
|
if (success && **mangled != '\0')
|
|
success = 0;
|
|
if (success)
|
|
string_append (declp, p);
|
|
}
|
|
else
|
|
{
|
|
success = 0;
|
|
}
|
|
return (success);
|
|
}
|
|
|
|
/*
|
|
|
|
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==0)
|
|
{
|
|
return (0); /* no good */
|
|
}
|
|
scan += n;
|
|
if (scan[0] == '_' && scan[1] == '_')
|
|
{
|
|
scan += 2;
|
|
}
|
|
}
|
|
(*mangled) += ARM_VTABLE_STRLEN;
|
|
while (**mangled != '\0')
|
|
{
|
|
n = consume_count (mangled);
|
|
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;
|
|
const char *p;
|
|
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. */
|
|
p = *mangled + 2;
|
|
qualifiers = atoi (p);
|
|
if (!isdigit (*p) || *p == '0')
|
|
success = 0;
|
|
|
|
/* Skip the digits. */
|
|
while (isdigit (*p))
|
|
++p;
|
|
|
|
if (*p != '_')
|
|
success = 0;
|
|
|
|
*mangled = p + 1;
|
|
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
|
|
{
|
|
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
|
|
|
|
Return 0 if no conversion is performed, 1 if a string is converted.
|
|
*/
|
|
|
|
static int
|
|
get_count (type, count)
|
|
const char **type;
|
|
int *count;
|
|
{
|
|
const char *p;
|
|
int n;
|
|
|
|
if (!isdigit (**type))
|
|
{
|
|
return (0);
|
|
}
|
|
else
|
|
{
|
|
*count = **type - '0';
|
|
(*type)++;
|
|
if (isdigit (**type))
|
|
{
|
|
p = *type;
|
|
n = *count;
|
|
do
|
|
{
|
|
n *= 10;
|
|
n += *p - '0';
|
|
p++;
|
|
}
|
|
while (isdigit (*p));
|
|
if (*p == '_')
|
|
{
|
|
*type = p + 1;
|
|
*count = n;
|
|
}
|
|
}
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
/* result will be initialised here; it will be freed on failure */
|
|
|
|
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 constp;
|
|
int volatilep;
|
|
string btype;
|
|
|
|
string_init (&btype);
|
|
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)++;
|
|
string_prepend (&decl, "*");
|
|
break;
|
|
|
|
/* A reference type */
|
|
case 'R':
|
|
(*mangled)++;
|
|
string_prepend (&decl, "&");
|
|
break;
|
|
|
|
/* An array */
|
|
case 'A':
|
|
{
|
|
const char *p = ++(*mangled);
|
|
|
|
string_prepend (&decl, "(");
|
|
string_append (&decl, ")[");
|
|
/* Copy anything up until the next underscore (the size of the
|
|
array). */
|
|
while (**mangled && **mangled != '_')
|
|
++(*mangled);
|
|
if (**mangled == '_')
|
|
{
|
|
string_appendn (&decl, p, *mangled - p);
|
|
string_append (&decl, "]");
|
|
*mangled += 1;
|
|
}
|
|
else
|
|
success = 0;
|
|
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] == '*')
|
|
{
|
|
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':
|
|
{
|
|
constp = 0;
|
|
volatilep = 0;
|
|
|
|
member = **mangled == 'M';
|
|
(*mangled)++;
|
|
if (!isdigit (**mangled) && **mangled != 't')
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
|
|
string_append (&decl, ")");
|
|
string_prepend (&decl, SCOPE_STRING (work));
|
|
if (isdigit (**mangled))
|
|
{
|
|
n = consume_count (mangled);
|
|
if (strlen (*mangled) < n)
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
string_prependn (&decl, *mangled, n);
|
|
*mangled += n;
|
|
}
|
|
else
|
|
{
|
|
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_clear (&temp);
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
string_prepend (&decl, "(");
|
|
if (member)
|
|
{
|
|
if (**mangled == 'C')
|
|
{
|
|
(*mangled)++;
|
|
constp = 1;
|
|
}
|
|
if (**mangled == 'V')
|
|
{
|
|
(*mangled)++;
|
|
volatilep = 1;
|
|
}
|
|
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 (constp)
|
|
{
|
|
APPEND_BLANK (&decl);
|
|
string_append (&decl, "const");
|
|
}
|
|
if (volatilep)
|
|
{
|
|
APPEND_BLANK (&decl);
|
|
string_append (&decl, "volatile");
|
|
}
|
|
break;
|
|
}
|
|
case 'G':
|
|
(*mangled)++;
|
|
break;
|
|
|
|
case 'C':
|
|
case 'V':
|
|
/*
|
|
if ((*mangled)[1] == 'P')
|
|
{
|
|
*/
|
|
if (PRINT_ANSI_QUALIFIERS)
|
|
{
|
|
if (!STRING_EMPTY (&decl))
|
|
{
|
|
string_prepend (&decl, " ");
|
|
}
|
|
string_prepend (&decl,
|
|
(**mangled) == 'C' ? "const" : "volatile");
|
|
}
|
|
(*mangled)++;
|
|
break;
|
|
/*
|
|
}
|
|
*/
|
|
|
|
/* fall through */
|
|
default:
|
|
done = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
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
|
|
{
|
|
char buf[10];
|
|
sprintf(buf, "T%d", idx);
|
|
string_append (result, buf);
|
|
}
|
|
|
|
success = 1;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
success = demangle_fund_type (work, mangled, result);
|
|
break;
|
|
}
|
|
|
|
if (success)
|
|
{
|
|
if (!STRING_EMPTY (&decl))
|
|
{
|
|
string_append (result, " ");
|
|
string_appends (result, &decl);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
string_delete (result);
|
|
}
|
|
string_delete (&decl);
|
|
return (success);
|
|
}
|
|
|
|
/* 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"
|
|
|
|
*/
|
|
|
|
static int
|
|
demangle_fund_type (work, mangled, result)
|
|
struct work_stuff *work;
|
|
const char **mangled;
|
|
string *result;
|
|
{
|
|
int done = 0;
|
|
int success = 1;
|
|
string btype;
|
|
string_init (&btype);
|
|
|
|
/* First pick off any type qualifiers. There can be more than one. */
|
|
|
|
while (!done)
|
|
{
|
|
switch (**mangled)
|
|
{
|
|
case 'C':
|
|
(*mangled)++;
|
|
if (PRINT_ANSI_QUALIFIERS)
|
|
{
|
|
APPEND_BLANK (result);
|
|
string_append (result, "const");
|
|
}
|
|
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 'V':
|
|
(*mangled)++;
|
|
if (PRINT_ANSI_QUALIFIERS)
|
|
{
|
|
APPEND_BLANK (result);
|
|
string_append (result, "volatile");
|
|
}
|
|
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");
|
|
break;
|
|
case 'c':
|
|
(*mangled)++;
|
|
APPEND_BLANK (result);
|
|
string_append (result, "char");
|
|
break;
|
|
case 'w':
|
|
(*mangled)++;
|
|
APPEND_BLANK (result);
|
|
string_append (result, "wchar_t");
|
|
break;
|
|
case 'r':
|
|
(*mangled)++;
|
|
APPEND_BLANK (result);
|
|
string_append (result, "long double");
|
|
break;
|
|
case 'd':
|
|
(*mangled)++;
|
|
APPEND_BLANK (result);
|
|
string_append (result, "double");
|
|
break;
|
|
case 'f':
|
|
(*mangled)++;
|
|
APPEND_BLANK (result);
|
|
string_append (result, "float");
|
|
break;
|
|
case 'G':
|
|
(*mangled)++;
|
|
if (!isdigit (**mangled))
|
|
{
|
|
success = 0;
|
|
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':
|
|
{
|
|
success = demangle_template (work, mangled, &btype, 0, 1, 1);
|
|
string_appends (result, &btype);
|
|
break;
|
|
}
|
|
default:
|
|
success = 0;
|
|
break;
|
|
}
|
|
|
|
return (success);
|
|
}
|
|
|
|
/* 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_clear (work->previous_argument);
|
|
else
|
|
{
|
|
work->previous_argument = (string*) xmalloc (sizeof (string));
|
|
string_init (work->previous_argument);
|
|
}
|
|
|
|
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 (ARM_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)
|
|
{
|
|
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);
|
|
work->previous_argument = saved_previous_argument;
|
|
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;
|
|
|
|
if (LUCID_DEMANGLING || ARM_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 < sizeof (optable) / sizeof (optable[0]); i++)
|
|
{
|
|
int len = declp->p - declp->b - 10;
|
|
if (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 < sizeof (optable) / sizeof (optable[0]); i++)
|
|
{
|
|
int len = declp->p - declp->b - 3;
|
|
if (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] == '_'
|
|
&& declp->b[2] >= 'a' && declp->b[2] <= 'z'
|
|
&& declp->b[3] >= 'a' && declp->b[3] <= 'z')
|
|
{
|
|
if (declp->b[4] == '\0')
|
|
{
|
|
/* Operator. */
|
|
for (i = 0; i < sizeof (optable) / sizeof (optable[0]); 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 < sizeof (optable) / sizeof (optable[0]); 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;
|
|
}
|
|
}
|
|
|
|
/* To generate a standalone demangler program for testing purposes,
|
|
just compile and link this file with -DMAIN and libiberty.a. When
|
|
run, it demangles each command line arg, or each stdin string, and
|
|
prints the result on stdout. */
|
|
|
|
#ifdef MAIN
|
|
|
|
#include "getopt.h"
|
|
|
|
static char *program_name;
|
|
static char *program_version = VERSION;
|
|
static int flags = DMGL_PARAMS | DMGL_ANSI;
|
|
|
|
static void demangle_it PARAMS ((char *));
|
|
static void usage PARAMS ((FILE *, int));
|
|
static void fatal PARAMS ((char *));
|
|
|
|
static void
|
|
demangle_it (mangled_name)
|
|
char *mangled_name;
|
|
{
|
|
char *result;
|
|
|
|
result = cplus_demangle (mangled_name, flags);
|
|
if (result == NULL)
|
|
{
|
|
printf ("%s\n", mangled_name);
|
|
}
|
|
else
|
|
{
|
|
printf ("%s\n", result);
|
|
free (result);
|
|
}
|
|
}
|
|
|
|
static void
|
|
usage (stream, status)
|
|
FILE *stream;
|
|
int status;
|
|
{
|
|
fprintf (stream, "\
|
|
Usage: %s [-_] [-n] [-s {gnu,lucid,arm}] [--strip-underscores]\n\
|
|
[--no-strip-underscores] [--format={gnu,lucid,arm}]\n\
|
|
[--help] [--version] [arg...]\n",
|
|
program_name);
|
|
exit (status);
|
|
}
|
|
|
|
#define MBUF_SIZE 32767
|
|
char mbuffer[MBUF_SIZE];
|
|
|
|
/* Defined in the automatically-generated underscore.c. */
|
|
extern int prepends_underscore;
|
|
|
|
int strip_underscore = 0;
|
|
|
|
static struct option long_options[] = {
|
|
{"strip-underscores", no_argument, 0, '_'},
|
|
{"format", required_argument, 0, 's'},
|
|
{"help", no_argument, 0, 'h'},
|
|
{"no-strip-underscores", no_argument, 0, 'n'},
|
|
{"version", no_argument, 0, 'v'},
|
|
{0, no_argument, 0, 0}
|
|
};
|
|
|
|
/* More 'friendly' abort that prints the line and file.
|
|
config.h can #define abort fancy_abort if you like that sort of thing. */
|
|
|
|
void
|
|
fancy_abort ()
|
|
{
|
|
fatal ("Internal gcc abort.");
|
|
}
|
|
|
|
int
|
|
main (argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
char *result;
|
|
int c;
|
|
|
|
program_name = argv[0];
|
|
|
|
strip_underscore = prepends_underscore;
|
|
|
|
while ((c = getopt_long (argc, argv, "_ns:j", long_options, (int *) 0)) != EOF)
|
|
{
|
|
switch (c)
|
|
{
|
|
case '?':
|
|
usage (stderr, 1);
|
|
break;
|
|
case 'h':
|
|
usage (stdout, 0);
|
|
case 'n':
|
|
strip_underscore = 0;
|
|
break;
|
|
case 'v':
|
|
printf ("GNU %s version %s\n", program_name, program_version);
|
|
exit (0);
|
|
case '_':
|
|
strip_underscore = 1;
|
|
break;
|
|
case 's':
|
|
if (strcmp (optarg, "gnu") == 0)
|
|
{
|
|
current_demangling_style = gnu_demangling;
|
|
}
|
|
else if (strcmp (optarg, "lucid") == 0)
|
|
{
|
|
current_demangling_style = lucid_demangling;
|
|
}
|
|
else if (strcmp (optarg, "arm") == 0)
|
|
{
|
|
current_demangling_style = arm_demangling;
|
|
}
|
|
else
|
|
{
|
|
fprintf (stderr, "%s: unknown demangling style `%s'\n",
|
|
program_name, optarg);
|
|
exit (1);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (optind < argc)
|
|
{
|
|
for ( ; optind < argc; optind++)
|
|
{
|
|
demangle_it (argv[optind]);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (;;)
|
|
{
|
|
int i = 0;
|
|
c = getchar ();
|
|
/* Try to read a label. */
|
|
while (c != EOF && (isalnum(c) || c == '_' || c == '$' || c == '.'))
|
|
{
|
|
if (i >= MBUF_SIZE-1)
|
|
break;
|
|
mbuffer[i++] = c;
|
|
c = getchar ();
|
|
}
|
|
if (i > 0)
|
|
{
|
|
int skip_first = 0;
|
|
|
|
if (mbuffer[0] == '.')
|
|
++skip_first;
|
|
if (strip_underscore && mbuffer[skip_first] == '_')
|
|
++skip_first;
|
|
|
|
if (skip_first > i)
|
|
skip_first = i;
|
|
|
|
mbuffer[i] = 0;
|
|
|
|
result = cplus_demangle (mbuffer + skip_first, flags);
|
|
if (result)
|
|
{
|
|
if (mbuffer[0] == '.')
|
|
putc ('.', stdout);
|
|
fputs (result, stdout);
|
|
free (result);
|
|
}
|
|
else
|
|
fputs (mbuffer, stdout);
|
|
|
|
fflush (stdout);
|
|
}
|
|
if (c == EOF)
|
|
break;
|
|
putchar (c);
|
|
}
|
|
}
|
|
|
|
exit (0);
|
|
}
|
|
|
|
static void
|
|
fatal (str)
|
|
char *str;
|
|
{
|
|
fprintf (stderr, "%s: %s\n", program_name, str);
|
|
exit (1);
|
|
}
|
|
|
|
char * malloc ();
|
|
char * realloc ();
|
|
|
|
char *
|
|
xmalloc (size)
|
|
unsigned size;
|
|
{
|
|
register char *value = (char *) malloc (size);
|
|
if (value == 0)
|
|
fatal ("virtual memory exhausted");
|
|
return value;
|
|
}
|
|
|
|
char *
|
|
xrealloc (ptr, size)
|
|
char *ptr;
|
|
unsigned size;
|
|
{
|
|
register char *value = (char *) realloc (ptr, size);
|
|
if (value == 0)
|
|
fatal ("virtual memory exhausted");
|
|
return value;
|
|
}
|
|
#endif /* main */
|