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66d62d9f | 1 | /* Functions for LTO dump tool. |
7adcbafe | 2 | Copyright (C) 2018-2022 Free Software Foundation, Inc. |
66d62d9f HK |
3 | |
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
8 | Software Foundation; either version 3, or (at your option) any later | |
9 | version. | |
10 | ||
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GCC; see the file COPYING3. If not see | |
18 | <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "config.h" | |
21 | #include "system.h" | |
22 | #include "coretypes.h" | |
23 | #include "tm.h" | |
24 | #include "function.h" | |
25 | #include "basic-block.h" | |
26 | #include "tree.h" | |
27 | #include "gimple.h" | |
28 | #include "cfg.h" | |
29 | #include "tree-cfg.h" | |
30 | #include "tree-pass.h" | |
31 | #include "tree-streamer.h" | |
32 | #include "cgraph.h" | |
33 | #include "opts.h" | |
34 | #include "debug.h" | |
35 | #include "lto-partition.h" | |
36 | #include "tree-pretty-print.h" | |
37 | #include "lto-common.h" | |
38 | ||
39 | /* Stores details of symbols for dumping symbol list. */ | |
40 | ||
6c1dae73 | 41 | class symbol_entry |
66d62d9f | 42 | { |
6c1dae73 | 43 | public: |
66d62d9f HK |
44 | symtab_node *node; |
45 | symbol_entry (symtab_node *node_): node (node_) | |
46 | {} | |
47 | ||
c2f7a665 ML |
48 | virtual ~symbol_entry () |
49 | {} | |
50 | ||
66d62d9f HK |
51 | char* get_name () const |
52 | { | |
53 | if (flag_lto_dump_demangle) | |
54 | return xstrdup (node->name ()); | |
55 | else | |
56 | return xstrdup (node->asm_name ()); | |
57 | } | |
58 | ||
59 | virtual size_t get_size () const = 0; | |
60 | ||
61 | virtual void dump () | |
62 | { | |
63 | const char *name = get_name (); | |
64 | const char *type_name = node->get_symtab_type_string (); | |
65 | const char *visibility = node->get_visibility_string (); | |
66 | size_t sz = get_size (); | |
03de2955 RO |
67 | printf ("%s %s %4" PRIu64 " %s ", type_name, visibility, (uint64_t) sz, |
68 | name); | |
66d62d9f HK |
69 | } |
70 | }; | |
71 | ||
72 | /* Stores variable specific details of symbols for dumping symbol list. */ | |
73 | ||
6c1dae73 | 74 | class variable_entry: public symbol_entry |
66d62d9f | 75 | { |
6c1dae73 | 76 | public: |
66d62d9f HK |
77 | variable_entry (varpool_node *node_): symbol_entry (node_) |
78 | {} | |
79 | ||
c2f7a665 ML |
80 | virtual ~variable_entry () |
81 | {} | |
82 | ||
66d62d9f HK |
83 | virtual size_t get_size () const |
84 | { | |
85 | varpool_node *vnode = dyn_cast<varpool_node *> (node); | |
86 | if (DECL_SIZE (vnode->decl) && tree_fits_shwi_p (DECL_SIZE (vnode->decl))) | |
87 | return tree_to_shwi (DECL_SIZE (vnode->decl)); | |
88 | return 0; | |
89 | } | |
90 | ||
91 | virtual void dump () | |
92 | { | |
93 | symbol_entry :: dump (); | |
94 | varpool_node *vnode = dyn_cast<varpool_node *> (node); | |
95 | vnode->get_constructor (); | |
96 | tree value_tree = DECL_INITIAL (vnode->decl); | |
97 | if (flag_lto_print_value && value_tree) | |
98 | print_generic_expr (stdout, value_tree, TDF_NONE); | |
99 | printf ("\n"); | |
100 | } | |
101 | }; | |
102 | ||
103 | /* Stores function specific details of symbols for dumping symbol list. */ | |
104 | ||
6c1dae73 | 105 | class function_entry: public symbol_entry |
66d62d9f | 106 | { |
6c1dae73 | 107 | public: |
66d62d9f HK |
108 | function_entry (cgraph_node *node_): symbol_entry (node_) |
109 | {} | |
110 | ||
c2f7a665 ML |
111 | virtual ~function_entry () |
112 | {} | |
113 | ||
66d62d9f HK |
114 | virtual void dump () |
115 | { | |
116 | symbol_entry :: dump (); | |
117 | printf ("\n"); | |
118 | } | |
119 | ||
120 | virtual size_t get_size () const | |
121 | { | |
122 | cgraph_node *cnode = dyn_cast<cgraph_node *> (node); | |
123 | gcc_assert (cnode); | |
124 | ||
0f3cd532 | 125 | return (cnode->definition && !cnode->thunk && !cnode->alias) |
66d62d9f HK |
126 | ? n_basic_blocks_for_fn (DECL_STRUCT_FUNCTION (cnode->decl)) |
127 | : 0; | |
128 | } | |
129 | }; | |
130 | ||
131 | /* Comparing symbols based on size. */ | |
132 | ||
133 | int size_compare (const void *a, const void *b) | |
134 | { | |
135 | const symbol_entry *e1 = *(const symbol_entry * const*) a; | |
136 | const symbol_entry *e2 = *(const symbol_entry * const*) b; | |
137 | ||
138 | return e1->get_size () - e2->get_size (); | |
139 | } | |
140 | ||
141 | /* Comparing symbols based on name. */ | |
142 | ||
143 | int name_compare (const void *a, const void *b) | |
144 | { | |
145 | const symbol_entry *e1 = *(const symbol_entry * const*) a; | |
146 | const symbol_entry *e2 = *(const symbol_entry * const*) b; | |
147 | ||
148 | return strcmp (e1->get_name (), e2->get_name ()); | |
149 | } | |
150 | ||
151 | /* Dump list of functions and their details. */ | |
152 | ||
153 | void dump_list_functions (void) | |
154 | { | |
155 | auto_vec<symbol_entry *> v; | |
156 | ||
157 | cgraph_node *cnode; | |
158 | FOR_EACH_FUNCTION (cnode) | |
159 | { | |
27736735 | 160 | if (cnode->definition && !cnode->alias) |
66d62d9f HK |
161 | cnode->get_untransformed_body (); |
162 | symbol_entry *e = new function_entry (cnode); | |
27736735 | 163 | if (!flag_lto_dump_defined || (cnode->definition && !cnode->alias)) |
66d62d9f HK |
164 | v.safe_push (e); |
165 | } | |
166 | ||
167 | if (flag_lto_size_sort) | |
168 | v.qsort (size_compare); | |
169 | else if (flag_lto_name_sort) | |
170 | v.qsort (name_compare); | |
171 | if (flag_lto_reverse_sort) | |
172 | v.reverse (); | |
173 | ||
174 | printf ("Type Visibility Size Name"); | |
175 | if (flag_lto_print_value) | |
176 | printf (" Value"); | |
177 | printf ("\n"); | |
178 | int i=0; | |
179 | symbol_entry* e; | |
180 | FOR_EACH_VEC_ELT (v, i, e) | |
c2f7a665 ML |
181 | { |
182 | e->dump (); | |
183 | delete e; | |
184 | } | |
66d62d9f HK |
185 | } |
186 | ||
187 | /* Dump list of variables and their details. */ | |
188 | ||
189 | void dump_list_variables (void) | |
190 | { | |
191 | auto_vec<symbol_entry *> v; | |
192 | ||
193 | varpool_node *vnode; | |
194 | FOR_EACH_VARIABLE (vnode) | |
195 | { | |
196 | symbol_entry *e = new variable_entry (vnode); | |
197 | if (!flag_lto_dump_defined || vnode->definition) | |
198 | v.safe_push (e); | |
199 | } | |
200 | ||
201 | if (flag_lto_size_sort) | |
202 | v.qsort (size_compare); | |
203 | else if (flag_lto_name_sort) | |
204 | v.qsort (name_compare); | |
205 | if (flag_lto_reverse_sort) | |
206 | v.reverse (); | |
207 | ||
208 | printf ("\n"); | |
209 | int i=0; | |
210 | symbol_entry* e; | |
211 | FOR_EACH_VEC_ELT (v, i, e) | |
c2f7a665 ML |
212 | { |
213 | e->dump (); | |
214 | delete e; | |
215 | } | |
66d62d9f HK |
216 | } |
217 | ||
34e64622 GB |
218 | /* Dump symbol table in graphviz format. */ |
219 | void dump_symtab_graphviz (void) | |
220 | { | |
221 | symtab->dump_graphviz (stdout); | |
222 | } | |
223 | ||
66d62d9f HK |
224 | /* Dump symbol list. */ |
225 | ||
226 | void dump_list (void) | |
227 | { | |
228 | dump_list_functions (); | |
229 | dump_list_variables (); | |
230 | return; | |
231 | } | |
232 | ||
233 | /* Dump specific variables and functions used in IL. */ | |
234 | void dump_symbol () | |
235 | { | |
236 | symtab_node *node; | |
237 | printf ("Symbol: %s\n", flag_lto_dump_symbol); | |
238 | FOR_EACH_SYMBOL (node) | |
239 | { | |
240 | if (!strcmp (flag_lto_dump_symbol, node->name ())) | |
241 | { | |
242 | node->debug (); | |
243 | printf ("\n"); | |
244 | } | |
245 | } | |
246 | return; | |
247 | } | |
248 | ||
249 | /* Dump specific gimple body of specified function. */ | |
250 | void dump_body () | |
251 | { | |
252 | int flag = 0; | |
253 | dump_flags_t flags = TDF_NONE; | |
254 | if (flag_dump_level) | |
255 | flags = parse_dump_option (flag_dump_level, NULL); | |
256 | if (flags == TDF_ERROR) | |
257 | { | |
258 | error_at (input_location, "Level not found, use none, slim, blocks, vops."); | |
259 | return; | |
260 | } | |
261 | cgraph_node *cnode; | |
262 | FOR_EACH_FUNCTION (cnode) | |
27736735 ML |
263 | if (cnode->definition |
264 | && !cnode->alias | |
265 | && !strcmp (cnode->name (), flag_dump_body)) | |
266 | { | |
267 | printf ("Gimple Body of Function: %s\n", cnode->name ()); | |
268 | cnode->get_untransformed_body (); | |
269 | debug_function (cnode->decl, flags); | |
270 | flag = 1; | |
271 | } | |
66d62d9f HK |
272 | if (!flag) |
273 | error_at (input_location, "Function not found."); | |
274 | return; | |
275 | } | |
276 | ||
277 | /* List of command line options for dumping. */ | |
278 | void dump_tool_help () | |
279 | { | |
34e64622 GB |
280 | const char *msg = |
281 | "Usage: lto-dump [OPTION]... SUB_COMMAND [OPTION]...\n\n" | |
282 | "LTO dump tool command line options.\n\n" | |
283 | " -list [options] Dump the symbol list.\n" | |
284 | " -demangle Dump the demangled output.\n" | |
285 | " -defined-only Dump only the defined symbols.\n" | |
286 | " -print-value Dump initial values of the variables.\n" | |
287 | " -name-sort Sort the symbols alphabetically.\n" | |
288 | " -size-sort Sort the symbols according to size.\n" | |
289 | " -reverse-sort Dump the symbols in reverse order.\n" | |
290 | " -symbol= Dump the details of specific symbol.\n" | |
291 | " -objects Dump the details of LTO objects.\n" | |
292 | " -callgraph Dump the callgraph in graphviz format.\n" | |
293 | " -type-stats Dump statistics of tree types.\n" | |
294 | " -tree-stats Dump statistics of trees.\n" | |
295 | " -gimple-stats Dump statistics of gimple statements.\n" | |
296 | " -dump-body= Dump the specific gimple body.\n" | |
297 | " -dump-level= Deciding the optimization level of body.\n" | |
298 | " -help Display the dump tool help.\n"; | |
299 | ||
300 | fputs (msg, stdout); | |
66d62d9f HK |
301 | return; |
302 | } | |
303 | ||
304 | unsigned int | |
305 | lto_option_lang_mask (void) | |
306 | { | |
307 | return CL_LTODump; | |
308 | } | |
309 | ||
310 | /* Functions for dumping various details in LTO dump tool are called | |
311 | in lto_main(). The purpose of this dump tool is to analyze the LTO | |
312 | object files. */ | |
313 | ||
314 | void | |
315 | lto_main (void) | |
316 | { | |
317 | quiet_flag = true; | |
318 | if (flag_lto_dump_tool_help) | |
319 | dump_tool_help (); | |
320 | ||
321 | /* LTO is called as a front end, even though it is not a front end. | |
322 | Because it is called as a front end, TV_PHASE_PARSING and | |
323 | TV_PARSE_GLOBAL are active, and we need to turn them off while | |
324 | doing LTO. Later we turn them back on so they are active up in | |
325 | toplev.c. */ | |
326 | ||
327 | /* Initialize the LTO front end. */ | |
328 | lto_fe_init (); | |
329 | g_timer = NULL; | |
330 | /* Read all the symbols and call graph from all the files in the | |
331 | command line. */ | |
332 | read_cgraph_and_symbols (num_in_fnames, in_fnames); | |
333 | ||
334 | /* Dump symbol list. */ | |
335 | if (flag_lto_dump_list) | |
336 | dump_list (); | |
337 | else if (flag_lto_dump_symbol) | |
338 | { | |
339 | /* Dump specific variables and functions used in IL. */ | |
340 | dump_symbol (); | |
341 | } | |
342 | else if (flag_lto_gimple_stats) | |
343 | { | |
344 | /* Dump gimple statement statistics. */ | |
345 | cgraph_node *node; | |
346 | FOR_EACH_DEFINED_FUNCTION (node) | |
347 | node->get_untransformed_body (); | |
348 | if (!GATHER_STATISTICS) | |
349 | warning_at (input_location, 0, | |
a9c697b8 MS |
350 | "Not configured with " |
351 | "%<--enable-gather-detailed-mem-stats%>."); | |
66d62d9f HK |
352 | else |
353 | dump_gimple_statistics (); | |
354 | } | |
355 | else if (flag_lto_tree_stats) | |
356 | { | |
357 | /* Dump tree statistics. */ | |
358 | if (!GATHER_STATISTICS) | |
359 | warning_at (input_location, 0, | |
a9c697b8 MS |
360 | "Not configured with " |
361 | "%<--enable-gather-detailed-mem-stats%>."); | |
66d62d9f HK |
362 | else |
363 | { | |
364 | printf ("Tree Statistics\n"); | |
365 | dump_tree_statistics (); | |
366 | } | |
367 | } | |
368 | else if (flag_dump_body) | |
369 | { | |
370 | /* Dump specific gimple body of specified function. */ | |
371 | dump_body (); | |
372 | return; | |
373 | } | |
34e64622 GB |
374 | else if (flag_dump_callgraph) |
375 | { | |
376 | dump_symtab_graphviz (); | |
377 | return; | |
378 | } | |
66d62d9f | 379 | } |