| /* Demangler for GNU C++ |
| Copyright 1989, 1991, 1994, 1995, 1996, 1997 Free Software Foundation, Inc. |
| Written by James Clark (jjc@jclark.uucp) |
| Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling |
| |
| This file is part of the libiberty library. |
| Libiberty is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| Libiberty is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with libiberty; see the file COPYING.LIB. If |
| not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| /* This file exports two functions; cplus_mangle_opname and cplus_demangle. |
| |
| This file imports xmalloc and xrealloc, which are like malloc and |
| realloc except that they generate a fatal error if there is no |
| available memory. */ |
| |
| /* This file lives in both GCC and libiberty. When making changes, please |
| try not to break either. */ |
| |
| #include <ctype.h> |
| #include <string.h> |
| #include <stdio.h> |
| |
| #include <demangle.h> |
| #undef CURRENT_DEMANGLING_STYLE |
| #define CURRENT_DEMANGLING_STYLE work->options |
| |
| extern char *xmalloc PARAMS((unsigned)); |
| extern char *xrealloc PARAMS((char *, unsigned)); |
| |
| static const char *mystrstr PARAMS ((const char *, const char *)); |
| |
| static const char * |
| mystrstr (s1, s2) |
| const char *s1, *s2; |
| { |
| register const char *p = s1; |
| register int len = strlen (s2); |
| |
| for (; (p = strchr (p, *s2)) != 0; p++) |
| { |
| if (strncmp (p, s2, len) == 0) |
| { |
| return (p); |
| } |
| } |
| return (0); |
| } |
| |
| /* In order to allow a single demangler executable to demangle strings |
| using various common values of CPLUS_MARKER, as well as any specific |
| one set at compile time, we maintain a string containing all the |
| commonly used ones, and check to see if the marker we are looking for |
| is in that string. CPLUS_MARKER is usually '$' on systems where the |
| assembler can deal with that. Where the assembler can't, it's usually |
| '.' (but on many systems '.' is used for other things). We put the |
| current defined CPLUS_MARKER first (which defaults to '$'), followed |
| by the next most common value, followed by an explicit '$' in case |
| the value of CPLUS_MARKER is not '$'. |
| |
| We could avoid this if we could just get g++ to tell us what the actual |
| cplus marker character is as part of the debug information, perhaps by |
| ensuring that it is the character that terminates the gcc<n>_compiled |
| marker symbol (FIXME). */ |
| |
| #if !defined (CPLUS_MARKER) |
| #define CPLUS_MARKER '$' |
| #endif |
| |
| enum demangling_styles current_demangling_style = gnu_demangling; |
| |
| static char cplus_markers[] = { CPLUS_MARKER, '.', '$', '\0' }; |
| |
| void |
| set_cplus_marker_for_demangling (ch) |
| int ch; |
| { |
| cplus_markers[0] = ch; |
| } |
| |
| /* Stuff that is shared between sub-routines. |
| Using a shared structure allows cplus_demangle to be reentrant. */ |
| |
| struct work_stuff |
| { |
| int options; |
| char **typevec; |
| int ntypes; |
| int typevec_size; |
| int constructor; |
| int destructor; |
| int static_type; /* A static member function */ |
| int const_type; /* A const member function */ |
| char **tmpl_argvec; /* Template function arguments. */ |
| int ntmpl_args; /* The number of template function arguments. */ |
| }; |
| |
| #define PRINT_ANSI_QUALIFIERS (work -> options & DMGL_ANSI) |
| #define PRINT_ARG_TYPES (work -> options & DMGL_PARAMS) |
| |
| static const struct optable |
| { |
| const char *in; |
| const char *out; |
| int flags; |
| } optable[] = { |
| {"nw", " new", DMGL_ANSI}, /* new (1.92, ansi) */ |
| {"dl", " delete", DMGL_ANSI}, /* new (1.92, ansi) */ |
| {"new", " new", 0}, /* old (1.91, and 1.x) */ |
| {"delete", " delete", 0}, /* old (1.91, and 1.x) */ |
| {"vn", " new []", DMGL_ANSI}, /* GNU, pending ansi */ |
| {"vd", " delete []", DMGL_ANSI}, /* GNU, pending ansi */ |
| {"as", "=", DMGL_ANSI}, /* ansi */ |
| {"ne", "!=", DMGL_ANSI}, /* old, ansi */ |
| {"eq", "==", DMGL_ANSI}, /* old, ansi */ |
| {"ge", ">=", DMGL_ANSI}, /* old, ansi */ |
| {"gt", ">", DMGL_ANSI}, /* old, ansi */ |
| {"le", "<=", DMGL_ANSI}, /* old, ansi */ |
| {"lt", "<", DMGL_ANSI}, /* old, ansi */ |
| {"plus", "+", 0}, /* old */ |
| {"pl", "+", DMGL_ANSI}, /* ansi */ |
| {"apl", "+=", DMGL_ANSI}, /* ansi */ |
| {"minus", "-", 0}, /* old */ |
| {"mi", "-", DMGL_ANSI}, /* ansi */ |
| {"ami", "-=", DMGL_ANSI}, /* ansi */ |
| {"mult", "*", 0}, /* old */ |
| {"ml", "*", DMGL_ANSI}, /* ansi */ |
| {"amu", "*=", DMGL_ANSI}, /* ansi (ARM/Lucid) */ |
| {"aml", "*=", DMGL_ANSI}, /* ansi (GNU/g++) */ |
| {"convert", "+", 0}, /* old (unary +) */ |
| {"negate", "-", 0}, /* old (unary -) */ |
| {"trunc_mod", "%", 0}, /* old */ |
| {"md", "%", DMGL_ANSI}, /* ansi */ |
| {"amd", "%=", DMGL_ANSI}, /* ansi */ |
| {"trunc_div", "/", 0}, /* old */ |
| {"dv", "/", DMGL_ANSI}, /* ansi */ |
| {"adv", "/=", DMGL_ANSI}, /* ansi */ |
| {"truth_andif", "&&", 0}, /* old */ |
| {"aa", "&&", DMGL_ANSI}, /* ansi */ |
| {"truth_orif", "||", 0}, /* old */ |
| {"oo", "||", DMGL_ANSI}, /* ansi */ |
| {"truth_not", "!", 0}, /* old */ |
| {"nt", "!", DMGL_ANSI}, /* ansi */ |
| {"postincrement","++", 0}, /* old */ |
| {"pp", "++", DMGL_ANSI}, /* ansi */ |
| {"postdecrement","--", 0}, /* old */ |
| {"mm", "--", DMGL_ANSI}, /* ansi */ |
| {"bit_ior", "|", 0}, /* old */ |
| {"or", "|", DMGL_ANSI}, /* ansi */ |
| {"aor", "|=", DMGL_ANSI}, /* ansi */ |
| {"bit_xor", "^", 0}, /* old */ |
| {"er", "^", DMGL_ANSI}, /* ansi */ |
| {"aer", "^=", DMGL_ANSI}, /* ansi */ |
| {"bit_and", "&", 0}, /* old */ |
| {"ad", "&", DMGL_ANSI}, /* ansi */ |
| {"aad", "&=", DMGL_ANSI}, /* ansi */ |
| {"bit_not", "~", 0}, /* old */ |
| {"co", "~", DMGL_ANSI}, /* ansi */ |
| {"call", "()", 0}, /* old */ |
| {"cl", "()", DMGL_ANSI}, /* ansi */ |
| {"alshift", "<<", 0}, /* old */ |
| {"ls", "<<", DMGL_ANSI}, /* ansi */ |
| {"als", "<<=", DMGL_ANSI}, /* ansi */ |
| {"arshift", ">>", 0}, /* old */ |
| {"rs", ">>", DMGL_ANSI}, /* ansi */ |
| {"ars", ">>=", DMGL_ANSI}, /* ansi */ |
| {"component", "->", 0}, /* old */ |
| {"pt", "->", DMGL_ANSI}, /* ansi; Lucid C++ form */ |
| {"rf", "->", DMGL_ANSI}, /* ansi; ARM/GNU form */ |
| {"indirect", "*", 0}, /* old */ |
| {"method_call", "->()", 0}, /* old */ |
| {"addr", "&", 0}, /* old (unary &) */ |
| {"array", "[]", 0}, /* old */ |
| {"vc", "[]", DMGL_ANSI}, /* ansi */ |
| {"compound", ", ", 0}, /* old */ |
| {"cm", ", ", DMGL_ANSI}, /* ansi */ |
| {"cond", "?:", 0}, /* old */ |
| {"cn", "?:", DMGL_ANSI}, /* pseudo-ansi */ |
| {"max", ">?", 0}, /* old */ |
| {"mx", ">?", DMGL_ANSI}, /* pseudo-ansi */ |
| {"min", "<?", 0}, /* old */ |
| {"mn", "<?", DMGL_ANSI}, /* pseudo-ansi */ |
| {"nop", "", 0}, /* old (for operator=) */ |
| {"rm", "->*", DMGL_ANSI} /* ansi */ |
| }; |
| |
| |
| typedef struct string /* Beware: these aren't required to be */ |
| { /* '\0' terminated. */ |
| char *b; /* pointer to start of string */ |
| char *p; /* pointer after last character */ |
| char *e; /* pointer after end of allocated space */ |
| } string; |
| |
| #define STRING_EMPTY(str) ((str) -> b == (str) -> p) |
| #define PREPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ |
| string_prepend(str, " ");} |
| #define APPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ |
| string_append(str, " ");} |
| |
| #define ARM_VTABLE_STRING "__vtbl__" /* Lucid/ARM virtual table prefix */ |
| #define ARM_VTABLE_STRLEN 8 /* strlen (ARM_VTABLE_STRING) */ |
| |
| /* Prototypes for local functions */ |
| |
| static char * |
| mop_up PARAMS ((struct work_stuff *, string *, int)); |
| |
| #if 0 |
| static int |
| demangle_method_args PARAMS ((struct work_stuff *work, const char **, string *)); |
| #endif |
| |
| static int |
| demangle_template PARAMS ((struct work_stuff *work, const char **, string *, |
| string *, int)); |
| |
| static int |
| arm_pt PARAMS ((struct work_stuff *, const char *, int, const char **, |
| const char **)); |
| |
| static void |
| demangle_arm_pt PARAMS ((struct work_stuff *, const char **, int, string *)); |
| |
| static int |
| demangle_class_name PARAMS ((struct work_stuff *, const char **, string *)); |
| |
| static int |
| demangle_qualified PARAMS ((struct work_stuff *, const char **, string *, |
| int, int)); |
| |
| static int |
| demangle_class PARAMS ((struct work_stuff *, const char **, string *)); |
| |
| static int |
| demangle_fund_type PARAMS ((struct work_stuff *, const char **, string *)); |
| |
| static int |
| demangle_signature PARAMS ((struct work_stuff *, const char **, string *)); |
| |
| static int |
| demangle_prefix PARAMS ((struct work_stuff *, const char **, string *)); |
| |
| static int |
| gnu_special PARAMS ((struct work_stuff *, const char **, string *)); |
| |
| static int |
| arm_special PARAMS ((struct work_stuff *, const char **, string *)); |
| |
| static void |
| string_need PARAMS ((string *, int)); |
| |
| static void |
| string_delete PARAMS ((string *)); |
| |
| static void |
| string_init PARAMS ((string *)); |
| |
| static void |
| string_clear PARAMS ((string *)); |
| |
| #if 0 |
| static int |
| string_empty PARAMS ((string *)); |
| #endif |
| |
| static void |
| string_append PARAMS ((string *, const char *)); |
| |
| static void |
| string_appends PARAMS ((string *, string *)); |
| |
| static void |
| string_appendn PARAMS ((string *, const char *, int)); |
| |
| static void |
| string_prepend PARAMS ((string *, const char *)); |
| |
| static void |
| string_prependn PARAMS ((string *, const char *, int)); |
| |
| static int |
| get_count PARAMS ((const char **, int *)); |
| |
| static int |
| consume_count PARAMS ((const char **)); |
| |
| static int |
| consume_count_with_underscores PARAMS ((const char**)); |
| |
| static int |
| demangle_args PARAMS ((struct work_stuff *, const char **, string *)); |
| |
| static int |
| do_type PARAMS ((struct work_stuff *, const char **, string *)); |
| |
| static int |
| do_arg PARAMS ((struct work_stuff *, const char **, string *)); |
| |
| static void |
| demangle_function_name PARAMS ((struct work_stuff *, const char **, string *, |
| const char *)); |
| |
| static void |
| remember_type PARAMS ((struct work_stuff *, const char *, int)); |
| |
| static void |
| forget_types PARAMS ((struct work_stuff *)); |
| |
| static void |
| string_prepends PARAMS ((string *, string *)); |
| |
| /* Translate count to integer, consuming tokens in the process. |
| Conversion terminates on the first non-digit character. |
| Trying to consume something that isn't a count results in |
| no consumption of input and a return of 0. */ |
| |
| static int |
| consume_count (type) |
| const char **type; |
| { |
| int count = 0; |
| |
| while (isdigit (**type)) |
| { |
| count *= 10; |
| count += **type - '0'; |
| (*type)++; |
| } |
| return (count); |
| } |
| |
| |
| /* Like consume_count, but for counts that are preceded and followed |
| by '_' if they are greater than 10. Also, -1 is returned for |
| failure, since 0 can be a valid value. */ |
| |
| static int |
| consume_count_with_underscores (mangled) |
| const char **mangled; |
| { |
| int idx; |
| |
| if (**mangled == '_') |
| { |
| (*mangled)++; |
| if (!isdigit (**mangled)) |
| return -1; |
| |
| idx = consume_count (mangled); |
| if (**mangled != '_') |
| /* The trailing underscore was missing. */ |
| return -1; |
| |
| (*mangled)++; |
| } |
| else |
| { |
| if (**mangled < '0' || **mangled > '9') |
| return -1; |
| |
| idx = **mangled - '0'; |
| (*mangled)++; |
| } |
| |
| return idx; |
| } |
| |
| int |
| cplus_demangle_opname (opname, result, options) |
| const char *opname; |
| char *result; |
| int options; |
| { |
| int len, i, len1, ret; |
| string type; |
| struct work_stuff work[1]; |
| const char *tem; |
| |
| len = strlen(opname); |
| result[0] = '\0'; |
| ret = 0; |
| work->options = options; |
| |
| if (opname[0] == '_' && opname[1] == '_' |
| && opname[2] == 'o' && opname[3] == 'p') |
| { |
| /* ANSI. */ |
| /* type conversion operator. */ |
| tem = opname + 4; |
| if (do_type (work, &tem, &type)) |
| { |
| strcat (result, "operator "); |
| strncat (result, type.b, type.p - type.b); |
| string_delete (&type); |
| ret = 1; |
| } |
| } |
| else if (opname[0] == '_' && opname[1] == '_' |
| && opname[2] >= 'a' && opname[2] <= 'z' |
| && opname[3] >= 'a' && opname[3] <= 'z') |
| { |
| if (opname[4] == '\0') |
| { |
| /* Operator. */ |
| for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
| { |
| if (strlen (optable[i].in) == 2 |
| && memcmp (optable[i].in, opname + 2, 2) == 0) |
| { |
| strcat (result, "operator"); |
| strcat (result, optable[i].out); |
| ret = 1; |
| break; |
| } |
| } |
| } |
| else |
| { |
| if (opname[2] == 'a' && opname[5] == '\0') |
| { |
| /* Assignment. */ |
| for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
| { |
| if (strlen (optable[i].in) == 3 |
| && memcmp (optable[i].in, opname + 2, 3) == 0) |
| { |
| strcat (result, "operator"); |
| strcat (result, optable[i].out); |
| ret = 1; |
| break; |
| } |
| } |
| } |
| } |
| } |
| else if (len >= 3 |
| && opname[0] == 'o' |
| && opname[1] == 'p' |
| && strchr (cplus_markers, opname[2]) != NULL) |
| { |
| /* see if it's an assignment expression */ |
| if (len >= 10 /* op$assign_ */ |
| && memcmp (opname + 3, "assign_", 7) == 0) |
| { |
| 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 |
| { |
| 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; |
| } |
| } |
| 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; |
| { |
| int 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; |
| { |
| string decl; |
| int success = 0; |
| struct work_stuff work[1]; |
| char *demangled = NULL; |
| |
| if ((mangled != NULL) && (*mangled != '\0')) |
| { |
| 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; |
| |
| 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); |
| } |
| return (demangled); |
| } |
| |
| 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); |
| } |
| 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); |
| } |
| |
| /* 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 'S': |
| /* Static member function */ |
| if (oldmangled == NULL) |
| { |
| oldmangled = *mangled; |
| } |
| (*mangled)++; |
| work -> static_type = 1; |
| break; |
| |
| case 'C': |
| /* a const member function */ |
| if (oldmangled == NULL) |
| { |
| oldmangled = *mangled; |
| } |
| (*mangled)++; |
| work -> const_type = 1; |
| 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 '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); |
| if (success) |
| { |
| remember_type (work, oldmangled, *mangled - oldmangled); |
| } |
| string_append(&tname, (work -> options & DMGL_JAVA) ? "." : "::"); |
| 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); |
| 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"); |
| } |
| 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 (work, mangled, tname, trawname, is_type) |
| struct work_stuff *work; |
| const char **mangled; |
| string *tname; |
| string *trawname; |
| int is_type; |
| { |
| int i; |
| int is_pointer; |
| int is_real; |
| int is_integral; |
| int is_char; |
| int is_bool; |
| int r; |
| int need_comma = 0; |
| int success = 0; |
| int done; |
| const char *old_p; |
| const char *start; |
| int symbol_len; |
| int is_java_array = 0; |
| string temp; |
| |
| (*mangled)++; |
| if (is_type) |
| { |
| start = *mangled; |
| /* get template name */ |
| if ((r = consume_count (mangled)) == 0 || strlen (*mangled) < r) |
| { |
| return (0); |
| } |
| if (trawname) |
| string_appendn (trawname, *mangled, r); |
| is_java_array = (work -> options & DMGL_JAVA) |
| && strncmp (*mangled, "JArray1Z", 8) == 0; |
| if (! is_java_array) |
| { |
| string_appendn (tname, *mangled, r); |
| } |
| *mangled += r; |
| } |
| if (!is_java_array) |
| string_append (tname, "<"); |
| /* get size of template parameter list */ |
| if (!get_count (mangled, &r)) |
| { |
| return (0); |
| } |
| if (!is_type) |
| { |
| /* Create an array for saving the template argument values. */ |
| work->tmpl_argvec = (char**) xmalloc (r * sizeof (char *)); |
| work->ntmpl_args = r; |
| for (i = 0; i < r; i++) |
| work->tmpl_argvec[i] = 0; |
| } |
| for (i = 0; i < r; i++) |
| { |
| if (need_comma) |
| { |
| string_append (tname, ", "); |
| } |
| /* Z for type parameters */ |
| if (**mangled == 'Z') |
| { |
| (*mangled)++; |
| /* temp is initialized in do_type */ |
| success = do_type (work, mangled, &temp); |
| if (success) |
| { |
| string_appends (tname, &temp); |
| |
| if (!is_type) |
| { |
| /* Save the template argument. */ |
| int len = temp.p - temp.b; |
| work->tmpl_argvec[i] = xmalloc (len + 1); |
| memcpy (work->tmpl_argvec[i], temp.b, len); |
| work->tmpl_argvec[i][len] = '\0'; |
| } |
| } |
| string_delete(&temp); |
| if (!success) |
| { |
| break; |
| } |
| } |
| else |
| { |
| string param; |
| string* s; |
| |
| /* otherwise, value parameter */ |
| old_p = *mangled; |
| is_pointer = 0; |
| is_real = 0; |
| is_integral = 0; |
| is_char = 0; |
| is_bool = 0; |
| done = 0; |
| /* 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; |
| |
| 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 'Q': /* qualified name */ |
| done = is_integral = 1; |
| break; |
| 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) |
| { |
| success = 0; |
| if (!is_type) |
| string_delete (s); |
| break; |
| } |
| 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) |
| { |
| if (**mangled == 'm') |
| { |
| string_appendn (s, "-", 1); |
| (*mangled)++; |
| } |
| while (isdigit (**mangled)) |
| { |
| string_appendn (s, *mangled, 1); |
| (*mangled)++; |
| } |
| } |
| 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) |
| { |
| success = 0; |
| if (!is_type) |
| string_delete (s); |
| break; |
| } |
| 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) |
| { |
| symbol_len = consume_count (mangled); |
| if (symbol_len == 0) |
| { |
| success = 0; |
| if (!is_type) |
| string_delete (s); |
| break; |
| } |
| 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 = cplus_demangle (p, work->options); |
| string_appendn (s, "&", 1); |
| if (q) |
| { |
| string_append (s, q); |
| free (q); |
| } |
| else |
| string_append (s, p); |
| free (p); |
| } |
| *mangled += symbol_len; |
| } |
| if (!is_type) |
| { |
| int len = s->p - s->b; |
| work->tmpl_argvec[i] = xmalloc (len + 1); |
| memcpy (work->tmpl_argvec[i], s->b, len); |
| work->tmpl_argvec[i][len] = '\0'; |
| |
| string_appends (tname, s); |
| string_delete (s); |
| } |
| } |
| need_comma = 1; |
| } |
| if (is_java_array) |
| { |
| string_append (tname, "[]"); |
| } |
| else |
| { |
| if (tname->p[-1] == '>') |
| string_append (tname, " "); |
| string_append (tname, ">"); |
| } |
| |
| /* |
| if (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; |
| string class_name; |
| |
| string_init (&class_name); |
| 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; |
| } |
| } |
| string_prepend (declp, (work -> options & DMGL_JAVA) ? "." : "::"); |
| 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'))) |
| { |
| /* 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. */ |
| 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 (work, 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 |
| { |
| 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': |
| success = demangle_qualified (work, mangled, declp, 0, 1); |
| break; |
| case 't': |
| success = demangle_template (work, mangled, declp, 0, 1); |
| break; |
| default: |
| if (isdigit(*mangled[0])) |
| { |
| n = consume_count(mangled); |
| } |
| 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, |
| (work -> options & DMGL_JAVA) ? "." : "::"); |
| (*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': |
| success = demangle_qualified (work, mangled, declp, 0, 1); |
| break; |
| case 't': |
| success = demangle_template (work, mangled, declp, 0, 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, (work -> options & DMGL_JAVA) ? "." : "::"); |
| 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 = cplus_demangle (++*mangled, work->options); |
| 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': |
| success = demangle_qualified (work, mangled, declp, 0, 1); |
| break; |
| case 't': |
| success = demangle_template (work, mangled, declp, 0, 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 (struct work_stuff *work, 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 (work, mangled, declp) |
| struct work_stuff *work; |
| 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; |
| int namelength; |
| int success = 1; |
| const char *p; |
| char num[2]; |
| string temp; |
| |
| string_init (&temp); |
| 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) |
| { |
| if (*mangled[0] == '_') |
| *mangled = *mangled + 1; |
| if (*mangled[0] == 't') |
| { |
| success = demangle_template(work, mangled, &temp, 0, 1); |
| if (!success) break; |
| } |
| else if (*mangled[0] == 'X') |
| { |
| success = do_type (work, mangled, &temp); |
| if (!success) break; |
| } |
| else |
| { |
| namelength = consume_count (mangled); |
| if (strlen (*mangled) < namelength) |
| { |
| /* Simple sanity check failed */ |
| success = 0; |
| break; |
| } |
| string_appendn (&temp, *mangled, namelength); |
| *mangled += namelength; |
| } |
| if (qualifiers > 0) |
| { |
| string_append (&temp, (work -> options & DMGL_JAVA) ? "." : "::"); |
| } |
| } |
| |
| /* 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 && (work->constructor & 1 || work->destructor & 1)) |
| { |
| string_append (&temp, (work -> options & DMGL_JAVA) ? "." : "::"); |
| if (work -> destructor & 1) |
| { |
| string_append (&temp, "~"); |
| } |
| string_appendn (&temp, (*mangled) - namelength, namelength); |
| } |
| |
| /* 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, (work -> options & DMGL_JAVA) ? "." : "::"); |
| } |
| string_prepends (result, &temp); |
| } |
| |
| 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_init (&decl); |
| string_init (result); |
| |
| done = 0; |
| success = 1; |
| while (success && !done) |
| { |
| int member; |
| switch (**mangled) |
| { |
| |
| /* A pointer type */ |
| case 'P': |
| case 'p': |
| (*mangled)++; |
| if (! (work -> options & DMGL_JAVA)) |
| string_prepend (&decl, "*"); |
| 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_args (work, mangled, &decl) |
| || (**mangled != '_' && **mangled != '\0')) |
| { |
| success = 0; |
| } |
| 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, (work -> options & DMGL_JAVA) ? "." : "::"); |
| 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); |
| 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_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': |
| (*mangled)++; |
| /* |
| if ((*mangled)[1] == 'P') |
| { |
| */ |
| if (PRINT_ANSI_QUALIFIERS) |
| { |
| if (!STRING_EMPTY (&decl)) |
| { |
| string_prepend (&decl, " "); |
| } |
| string_prepend (&decl, "const"); |
| } |
| break; |
| /* |
| } |
| */ |
| |
| /* fall through */ |
| default: |
| done = 1; |
| break; |
| } |
| } |
| |
| switch (**mangled) |
| { |
| /* A qualified name, such as "Outer::Inner". */ |
| case 'Q': |
| success = demangle_qualified (work, mangled, result, 0, 1); |
| break; |
| |
| case 'X': |
| case 'Y': |
| /* A template parm. We substitute the corresponding argument. */ |
| { |
| int idx; |
| int lvl; |
| |
| (*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; |
| |
| /* 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': |
| APPEND_BLANK (result); |
| if (!demangle_class_name (work, mangled, result)) { |
| --result->p; |
| success = 0; |
| } |
| break; |
| case 't': |
| success = demangle_template(work,mangled, result, 0, 1); |
| break; |
| default: |
| success = 0; |
| break; |
| } |
| |
| return (success); |
| } |
| |
| /* `result' will be initialized in do_type; it will be freed on failure */ |
| |
| static int |
| do_arg (work, mangled, result) |
| struct work_stuff *work; |
| const char **mangled; |
| string *result; |
| { |
| const char *start = *mangled; |
| |
| if (!do_type (work, mangled, result)) |
| { |
| return (0); |
| } |
| else |
| { |
| 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 -> 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; |
| } |
| |
| /* 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 it's type numbers starting at zero and counts all |
| previously seen types, while lucid/ARM bases it's 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') |
| { |
| 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 (--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); |
| } |
| |
| static void |
| demangle_function_name (work, mangled, declp, scan) |
| struct work_stuff *work; |
| const char **mangled; |
| string *declp; |
| const char *scan; |
| { |
| int i; |
| int len; |
| 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++) |
| { |
| 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 512 |
| 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'}, |
| {"java", no_argument, 0, 'j' |