Mercurial > hg > CbC > CbC_gcc
annotate libiberty/cplus-dem.c @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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rev | line source |
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0 | 1 /* Demangler for GNU C++ |
145 | 2 Copyright (C) 1989-2020 Free Software Foundation, Inc. |
0 | 3 Written by James Clark (jjc@jclark.uucp) |
4 Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling | |
5 Modified by Satish Pai (pai@apollo.hp.com) for HP demangling | |
6 | |
7 This file is part of the libiberty library. | |
8 Libiberty is free software; you can redistribute it and/or | |
9 modify it under the terms of the GNU Library General Public | |
10 License as published by the Free Software Foundation; either | |
11 version 2 of the License, or (at your option) any later version. | |
12 | |
13 In addition to the permissions in the GNU Library General Public | |
14 License, the Free Software Foundation gives you unlimited permission | |
15 to link the compiled version of this file into combinations with other | |
16 programs, and to distribute those combinations without any restriction | |
17 coming from the use of this file. (The Library Public License | |
18 restrictions do apply in other respects; for example, they cover | |
19 modification of the file, and distribution when not linked into a | |
20 combined executable.) | |
21 | |
22 Libiberty is distributed in the hope that it will be useful, | |
23 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
25 Library General Public License for more details. | |
26 | |
27 You should have received a copy of the GNU Library General Public | |
28 License along with libiberty; see the file COPYING.LIB. If | |
29 not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, | |
30 Boston, MA 02110-1301, USA. */ | |
31 | |
32 /* This file lives in both GCC and libiberty. When making changes, please | |
33 try not to break either. */ | |
34 | |
35 #ifdef HAVE_CONFIG_H | |
36 #include "config.h" | |
37 #endif | |
38 | |
39 #include "safe-ctype.h" | |
40 | |
41 #include <string.h> | |
42 | |
43 #ifdef HAVE_STDLIB_H | |
44 #include <stdlib.h> | |
45 #else | |
46 void * malloc (); | |
47 void * realloc (); | |
48 #endif | |
49 | |
50 #include <demangle.h> | |
51 #undef CURRENT_DEMANGLING_STYLE | |
145 | 52 #define CURRENT_DEMANGLING_STYLE options |
0 | 53 |
54 #include "libiberty.h" | |
55 | |
56 enum demangling_styles current_demangling_style = auto_demangling; | |
57 | |
58 const struct demangler_engine libiberty_demanglers[] = | |
59 { | |
60 { | |
61 NO_DEMANGLING_STYLE_STRING, | |
62 no_demangling, | |
63 "Demangling disabled" | |
64 } | |
65 , | |
66 { | |
67 AUTO_DEMANGLING_STYLE_STRING, | |
68 auto_demangling, | |
69 "Automatic selection based on executable" | |
70 } | |
71 , | |
72 { | |
73 GNU_V3_DEMANGLING_STYLE_STRING, | |
74 gnu_v3_demangling, | |
145 | 75 "GNU (g++) V3 (Itanium C++ ABI) style demangling" |
0 | 76 } |
77 , | |
78 { | |
79 JAVA_DEMANGLING_STYLE_STRING, | |
80 java_demangling, | |
81 "Java style demangling" | |
82 } | |
83 , | |
84 { | |
85 GNAT_DEMANGLING_STYLE_STRING, | |
86 gnat_demangling, | |
87 "GNAT style demangling" | |
88 } | |
89 , | |
90 { | |
111 | 91 DLANG_DEMANGLING_STYLE_STRING, |
92 dlang_demangling, | |
93 "DLANG style demangling" | |
94 } | |
95 , | |
96 { | |
97 RUST_DEMANGLING_STYLE_STRING, | |
98 rust_demangling, | |
99 "Rust style demangling" | |
100 } | |
101 , | |
102 { | |
0 | 103 NULL, unknown_demangling, NULL |
104 } | |
105 }; | |
106 | |
107 /* Add a routine to set the demangling style to be sure it is valid and | |
108 allow for any demangler initialization that maybe necessary. */ | |
109 | |
110 enum demangling_styles | |
111 cplus_demangle_set_style (enum demangling_styles style) | |
112 { | |
113 const struct demangler_engine *demangler = libiberty_demanglers; | |
114 | |
115 for (; demangler->demangling_style != unknown_demangling; ++demangler) | |
116 if (style == demangler->demangling_style) | |
117 { | |
118 current_demangling_style = style; | |
119 return current_demangling_style; | |
120 } | |
121 | |
122 return unknown_demangling; | |
123 } | |
124 | |
125 /* Do string name to style translation */ | |
126 | |
127 enum demangling_styles | |
128 cplus_demangle_name_to_style (const char *name) | |
129 { | |
130 const struct demangler_engine *demangler = libiberty_demanglers; | |
131 | |
132 for (; demangler->demangling_style != unknown_demangling; ++demangler) | |
133 if (strcmp (name, demangler->demangling_style_name) == 0) | |
134 return demangler->demangling_style; | |
135 | |
136 return unknown_demangling; | |
137 } | |
138 | |
139 /* char *cplus_demangle (const char *mangled, int options) | |
140 | |
141 If MANGLED is a mangled function name produced by GNU C++, then | |
142 a pointer to a @code{malloc}ed string giving a C++ representation | |
143 of the name will be returned; otherwise NULL will be returned. | |
144 It is the caller's responsibility to free the string which | |
145 is returned. | |
146 | |
147 Note that any leading underscores, or other such characters prepended by | |
148 the compilation system, are presumed to have already been stripped from | |
149 MANGLED. */ | |
150 | |
151 char * | |
152 cplus_demangle (const char *mangled, int options) | |
153 { | |
154 char *ret; | |
155 | |
156 if (current_demangling_style == no_demangling) | |
157 return xstrdup (mangled); | |
158 | |
145 | 159 if ((options & DMGL_STYLE_MASK) == 0) |
160 options |= (int) current_demangling_style & DMGL_STYLE_MASK; | |
161 | |
162 /* The Rust demangling is implemented elsewhere. | |
163 Legacy Rust symbols overlap with GNU_V3, so try Rust first. */ | |
164 if (RUST_DEMANGLING || AUTO_DEMANGLING) | |
165 { | |
166 ret = rust_demangle (mangled, options); | |
167 if (ret || RUST_DEMANGLING) | |
168 return ret; | |
169 } | |
0 | 170 |
171 /* The V3 ABI demangling is implemented elsewhere. */ | |
145 | 172 if (GNU_V3_DEMANGLING || AUTO_DEMANGLING) |
0 | 173 { |
145 | 174 ret = cplus_demangle_v3 (mangled, options); |
175 if (ret || GNU_V3_DEMANGLING) | |
0 | 176 return ret; |
177 } | |
178 | |
179 if (JAVA_DEMANGLING) | |
180 { | |
181 ret = java_demangle_v3 (mangled); | |
182 if (ret) | |
183 return ret; | |
184 } | |
185 | |
186 if (GNAT_DEMANGLING) | |
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187 return ada_demangle (mangled, options); |
0 | 188 |
111 | 189 if (DLANG_DEMANGLING) |
190 { | |
191 ret = dlang_demangle (mangled, options); | |
192 if (ret) | |
193 return ret; | |
194 } | |
195 | |
0 | 196 return (ret); |
197 } | |
198 | |
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199 /* Demangle ada names. The encoding is documented in gcc/ada/exp_dbug.ads. */ |
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200 |
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201 char * |
0 | 202 ada_demangle (const char *mangled, int option ATTRIBUTE_UNUSED) |
203 { | |
204 int len0; | |
205 const char* p; | |
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206 char *d; |
111 | 207 char *demangled = NULL; |
0 | 208 |
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209 /* Discard leading _ada_, which is used for library level subprograms. */ |
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210 if (strncmp (mangled, "_ada_", 5) == 0) |
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211 mangled += 5; |
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212 |
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213 /* All ada unit names are lower-case. */ |
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214 if (!ISLOWER (mangled[0])) |
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215 goto unknown; |
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216 |
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217 /* Most of the demangling will trivially remove chars. Operator names |
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218 may add one char but because they are always preceeded by '__' which is |
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219 replaced by '.', they eventually never expand the size. |
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220 A few special names such as '___elabs' add a few chars (at most 7), but |
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221 they occur only once. */ |
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222 len0 = strlen (mangled) + 7 + 1; |
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223 demangled = XNEWVEC (char, len0); |
0 | 224 |
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225 d = demangled; |
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226 p = mangled; |
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227 while (1) |
0 | 228 { |
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229 /* An entity names is expected. */ |
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230 if (ISLOWER (*p)) |
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231 { |
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232 /* An identifier, which is always lower case. */ |
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233 do |
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234 *d++ = *p++; |
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235 while (ISLOWER(*p) || ISDIGIT (*p) |
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236 || (p[0] == '_' && (ISLOWER (p[1]) || ISDIGIT (p[1])))); |
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237 } |
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238 else if (p[0] == 'O') |
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239 { |
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240 /* An operator name. */ |
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241 static const char * const operators[][2] = |
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242 {{"Oabs", "abs"}, {"Oand", "and"}, {"Omod", "mod"}, |
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243 {"Onot", "not"}, {"Oor", "or"}, {"Orem", "rem"}, |
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244 {"Oxor", "xor"}, {"Oeq", "="}, {"One", "/="}, |
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245 {"Olt", "<"}, {"Ole", "<="}, {"Ogt", ">"}, |
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246 {"Oge", ">="}, {"Oadd", "+"}, {"Osubtract", "-"}, |
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247 {"Oconcat", "&"}, {"Omultiply", "*"}, {"Odivide", "/"}, |
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248 {"Oexpon", "**"}, {NULL, NULL}}; |
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249 int k; |
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250 |
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251 for (k = 0; operators[k][0] != NULL; k++) |
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252 { |
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253 size_t slen = strlen (operators[k][0]); |
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254 if (strncmp (p, operators[k][0], slen) == 0) |
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255 { |
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256 p += slen; |
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257 slen = strlen (operators[k][1]); |
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258 *d++ = '"'; |
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259 memcpy (d, operators[k][1], slen); |
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260 d += slen; |
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261 *d++ = '"'; |
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262 break; |
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263 } |
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264 } |
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265 /* Operator not found. */ |
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266 if (operators[k][0] == NULL) |
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267 goto unknown; |
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268 } |
0 | 269 else |
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270 { |
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271 /* Not a GNAT encoding. */ |
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272 goto unknown; |
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273 } |
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274 |
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275 /* The name can be directly followed by some uppercase letters. */ |
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276 if (p[0] == 'T' && p[1] == 'K') |
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277 { |
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278 /* Task stuff. */ |
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279 if (p[2] == 'B' && p[3] == 0) |
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280 { |
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281 /* Subprogram for task body. */ |
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282 break; |
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283 } |
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284 else if (p[2] == '_' && p[3] == '_') |
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285 { |
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286 /* Inner declarations in a task. */ |
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287 p += 4; |
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288 *d++ = '.'; |
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289 continue; |
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290 } |
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291 else |
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292 goto unknown; |
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293 } |
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294 if (p[0] == 'E' && p[1] == 0) |
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295 { |
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296 /* Exception name. */ |
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297 goto unknown; |
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298 } |
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299 if ((p[0] == 'P' || p[0] == 'N') && p[1] == 0) |
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300 { |
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301 /* Protected type subprogram. */ |
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302 break; |
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303 } |
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304 if ((*p == 'N' || *p == 'S') && p[1] == 0) |
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305 { |
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306 /* Enumerated type name table. */ |
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307 goto unknown; |
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308 } |
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309 if (p[0] == 'X') |
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310 { |
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311 /* Body nested. */ |
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312 p++; |
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313 while (p[0] == 'n' || p[0] == 'b') |
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314 p++; |
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315 } |
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316 if (p[0] == 'S' && p[1] != 0 && (p[2] == '_' || p[2] == 0)) |
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317 { |
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318 /* Stream operations. */ |
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319 const char *name; |
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320 switch (p[1]) |
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321 { |
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322 case 'R': |
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323 name = "'Read"; |
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324 break; |
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325 case 'W': |
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326 name = "'Write"; |
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327 break; |
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328 case 'I': |
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329 name = "'Input"; |
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330 break; |
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331 case 'O': |
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332 name = "'Output"; |
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333 break; |
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334 default: |
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335 goto unknown; |
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336 } |
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337 p += 2; |
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338 strcpy (d, name); |
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339 d += strlen (name); |
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340 } |
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341 else if (p[0] == 'D') |
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342 { |
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343 /* Controlled type operation. */ |
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344 const char *name; |
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345 switch (p[1]) |
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346 { |
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347 case 'F': |
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348 name = ".Finalize"; |
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349 break; |
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350 case 'A': |
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351 name = ".Adjust"; |
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352 break; |
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353 default: |
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354 goto unknown; |
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355 } |
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356 strcpy (d, name); |
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357 d += strlen (name); |
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358 break; |
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359 } |
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|
360 |
63
b7f97abdc517
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361 if (p[0] == '_') |
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362 { |
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363 /* Separator. */ |
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364 if (p[1] == '_') |
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|
365 { |
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|
366 /* Standard separator. Handled first. */ |
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367 p += 2; |
67
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|
368 |
63
b7f97abdc517
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|
369 if (ISDIGIT (*p)) |
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|
370 { |
67
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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|
371 /* Overloading number. */ |
63
b7f97abdc517
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changeset
|
372 do |
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373 p++; |
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changeset
|
374 while (ISDIGIT (*p) || (p[0] == '_' && ISDIGIT (p[1]))); |
67
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diff
changeset
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375 if (*p == 'X') |
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diff
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376 { |
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377 p++; |
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378 while (p[0] == 'n' || p[0] == 'b') |
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379 p++; |
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380 } |
63
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381 } |
67
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382 else if (p[0] == '_' && p[1] != '_') |
63
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383 { |
67
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384 /* Special names. */ |
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385 static const char * const special[][2] = { |
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386 { "_elabb", "'Elab_Body" }, |
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387 { "_elabs", "'Elab_Spec" }, |
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388 { "_size", "'Size" }, |
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389 { "_alignment", "'Alignment" }, |
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390 { "_assign", ".\":=\"" }, |
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391 { NULL, NULL } |
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392 }; |
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393 int k; |
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394 |
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395 for (k = 0; special[k][0] != NULL; k++) |
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396 { |
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397 size_t slen = strlen (special[k][0]); |
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398 if (strncmp (p, special[k][0], slen) == 0) |
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399 { |
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400 p += slen; |
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401 slen = strlen (special[k][1]); |
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402 memcpy (d, special[k][1], slen); |
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403 d += slen; |
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404 break; |
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405 } |
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406 } |
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407 if (special[k][0] != NULL) |
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408 break; |
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409 else |
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410 goto unknown; |
63
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diff
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411 } |
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412 else |
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413 { |
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414 *d++ = '.'; |
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415 continue; |
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416 } |
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417 } |
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418 else if (p[1] == 'B' || p[1] == 'E') |
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419 { |
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420 /* Entry Body or barrier Evaluation. */ |
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421 p += 2; |
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422 while (ISDIGIT (*p)) |
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423 p++; |
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424 if (p[0] == 's' && p[1] == 0) |
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425 break; |
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426 else |
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diff
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427 goto unknown; |
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parents:
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diff
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|
428 } |
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diff
changeset
|
429 else |
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diff
changeset
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430 goto unknown; |
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parents:
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diff
changeset
|
431 } |
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parents:
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diff
changeset
|
432 |
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parents:
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diff
changeset
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433 if (p[0] == '.' && ISDIGIT (p[1])) |
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parents:
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diff
changeset
|
434 { |
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parents:
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diff
changeset
|
435 /* Nested subprogram. */ |
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diff
changeset
|
436 p += 2; |
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diff
changeset
|
437 while (ISDIGIT (*p)) |
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parents:
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diff
changeset
|
438 p++; |
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parents:
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diff
changeset
|
439 } |
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
changeset
|
440 if (*p == 0) |
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parents:
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diff
changeset
|
441 { |
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update gcc from gcc-4.5.0 to gcc-4.6
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parents:
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diff
changeset
|
442 /* End of mangled name. */ |
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update gcc from gcc-4.5.0 to gcc-4.6
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parents:
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diff
changeset
|
443 break; |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
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diff
changeset
|
444 } |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
445 else |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
446 goto unknown; |
0 | 447 } |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
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diff
changeset
|
448 *d = 0; |
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diff
changeset
|
449 return demangled; |
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parents:
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diff
changeset
|
450 |
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update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
451 unknown: |
111 | 452 XDELETEVEC (demangled); |
63
b7f97abdc517
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parents:
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diff
changeset
|
453 len0 = strlen (mangled); |
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diff
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|
454 demangled = XNEWVEC (char, len0 + 3); |
0 | 455 |
456 if (mangled[0] == '<') | |
457 strcpy (demangled, mangled); | |
458 else | |
459 sprintf (demangled, "<%s>", mangled); | |
460 | |
461 return demangled; | |
462 } |