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4977bab6 | 1 | /* File format for coverage information |
a945c346 | 2 | Copyright (C) 1996-2024 Free Software Foundation, Inc. |
86144b75 | 3 | Contributed by Bob Manson <manson@cygnus.com>. |
4977bab6 | 4 | Completely remangled by Nathan Sidwell <nathan@codesourcery.com>. |
86144b75 | 5 | |
1322177d | 6 | This file is part of GCC. |
86144b75 | 7 | |
1322177d LB |
8 | GCC is free software; you can redistribute it and/or modify it under |
9 | the terms of the GNU General Public License as published by the Free | |
748086b7 | 10 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 11 | version. |
86144b75 | 12 | |
1322177d LB |
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
86144b75 | 17 | |
748086b7 JJ |
18 | Under Section 7 of GPL version 3, you are granted additional |
19 | permissions described in the GCC Runtime Library Exception, version | |
20 | 3.1, as published by the Free Software Foundation. | |
21 | ||
22 | You should have received a copy of the GNU General Public License and | |
23 | a copy of the GCC Runtime Library Exception along with this program; | |
24 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
25 | <http://www.gnu.org/licenses/>. */ | |
26 | ||
77c915d8 | 27 | |
10a9bf80 ML |
28 | /* CAVEAT: Coverage information files should not be parsed directly, |
29 | instead use `gcov --json-format`, which provides | |
30 | machine-readable coverage information. | |
31 | ||
32 | Note that the following file format documentation might be outdated. | |
33 | ||
34 | Coverage information is held in two files. A notes file, which is | |
00cf2913 NS |
35 | generated by the compiler, and a data file, which is generated by |
36 | the program under test. Both files use a similar structure. We do | |
37 | not attempt to make these files backwards compatible with previous | |
38 | versions, as you only need coverage information when developing a | |
39 | program. We do hold version information, so that mismatches can be | |
40 | detected, and we use a format that allows tools to skip information | |
41 | they do not understand or are not interested in. | |
160e2e4f NS |
42 | |
43 | Numbers are recorded in the 32 bit unsigned binary form of the | |
44 | endianness of the machine generating the file. 64 bit numbers are | |
c0954059 ML |
45 | stored as two 32 bit numbers, the low part first. |
46 | The number of bytes is stored, followed by the | |
00cf2913 | 47 | string. Zero length and NULL strings are simply stored as a length |
6871b899 | 48 | of zero (they have no trailing NUL). |
160e2e4f NS |
49 | |
50 | int32: byte3 byte2 byte1 byte0 | byte0 byte1 byte2 byte3 | |
51 | int64: int32:low int32:high | |
c0954059 | 52 | string: int32:0 | int32:length char* char:0 |
4977bab6 ZW |
53 | item: int32 | int64 | string |
54 | ||
5223e95a ML |
55 | The basic format of the notes file is |
56 | ||
57 | file : int32:magic int32:version int32:stamp int32:support_unexecuted_blocks record* | |
58 | ||
59 | The basic format of the data file is | |
4977bab6 | 60 | |
dd486eb2 | 61 | file : int32:magic int32:version int32:stamp record* |
4977bab6 | 62 | |
39d80300 SH |
63 | A filename header may be used to provide a filename for the data in |
64 | a stream of data to support gcov in freestanding environments. This | |
65 | header is used by the merge-stream subcommand of the gcov-tool. The | |
66 | format of the filename header is | |
67 | ||
68 | filename-header : int32:magic int32:version string | |
69 | ||
70 | The magic ident is different for the notes and the data files as | |
71 | well as the filename header. The magic ident is used to determine | |
72 | the endianness of the file, when reading. The version is the same | |
73 | for both files and is derived from gcc's version number. The stamp | |
74 | value is used to synchronize note and data files and to synchronize | |
75 | merging within a data file. It need not be an absolute time stamp, | |
76 | merely a ticker that increments fast enough and cycles slow enough | |
77 | to distinguish different compile/run/compile cycles. | |
b8698a0f | 78 | |
160e2e4f NS |
79 | Although the ident and version are formally 32 bit numbers, they |
80 | are derived from 4 character ASCII strings. The version number | |
e9e4348d ML |
81 | consists of a two character major version number |
82 | (first digit starts from 'A' letter to not to clash with the older | |
83 | numbering scheme), the single character minor version number, | |
84 | and a single character indicating the status of the release. | |
160e2e4f NS |
85 | That will be 'e' experimental, 'p' prerelease and 'r' for release. |
86 | Because, by good fortune, these are in alphabetical order, string | |
87 | collating can be used to compare version strings. Be aware that | |
88 | the 'e' designation will (naturally) be unstable and might be | |
e9e4348d ML |
89 | incompatible with itself. For gcc 17.0 experimental, it would be |
90 | 'B70e' (0x42373065). As we currently do not release more than 5 minor | |
91 | releases, the single character should be always fine. Major number | |
92 | is currently changed roughly every year, which gives us space | |
93 | for next 250 years (maximum allowed number would be 259.9). | |
4977bab6 ZW |
94 | |
95 | A record has a tag, length and variable amount of data. | |
96 | ||
97 | record: header data | |
98 | header: int32:tag int32:length | |
99 | data: item* | |
100 | ||
101 | Records are not nested, but there is a record hierarchy. Tag | |
160e2e4f NS |
102 | numbers reflect this hierarchy. Tags are unique across note and |
103 | data files. Some record types have a varying amount of data. The | |
e6fdea82 | 104 | LENGTH is the number of bytes that follow and is usually used to |
330d2e2a NS |
105 | determine how much data. The tag value is split into 4 8-bit |
106 | fields, one for each of four possible levels. The most significant | |
107 | is allocated first. Unused levels are zero. Active levels are | |
108 | odd-valued, so that the LSB of the level is one. A sub-level | |
109 | incorporates the values of its superlevels. This formatting allows | |
110 | you to determine the tag hierarchy, without understanding the tags | |
111 | themselves, and is similar to the standard section numbering used | |
112 | in technical documents. Level values [1..3f] are used for common | |
113 | tags, values [41..9f] for the notes file and [a1..ff] for the data | |
114 | file. | |
4977bab6 | 115 | |
efbb59b2 | 116 | The notes file contains the following records |
160e2e4f | 117 | note: unit function-graph* |
796621e8 | 118 | unit: header int32:checksum string:source |
4977bab6 | 119 | function-graph: announce_function basic_blocks {arcs | lines}* |
10adac51 XDL |
120 | announce_function: header int32:ident |
121 | int32:lineno_checksum int32:cfg_checksum | |
5223e95a | 122 | string:name string:source int32:start_lineno int32:start_column int32:end_lineno |
4977bab6 ZW |
123 | basic_block: header int32:flags* |
124 | arcs: header int32:block_no arc* | |
125 | arc: int32:dest_block int32:flags | |
126 | lines: header int32:block_no line* | |
127 | int32:0 string:NULL | |
128 | line: int32:line_no | int32:0 string:filename | |
129 | ||
130 | The BASIC_BLOCK record holds per-bb flags. The number of blocks | |
131 | can be inferred from its data length. There is one ARCS record per | |
132 | basic block. The number of arcs from a bb is implicit from the | |
133 | data length. It enumerates the destination bb and per-arc flags. | |
134 | There is one LINES record per basic block, it enumerates the source | |
135 | lines which belong to that basic block. Source file names are | |
136 | introduced by a line number of 0, following lines are from the new | |
137 | source file. The initial source file for the function is NULL, but | |
138 | the current source file should be remembered from one LINES record | |
139 | to the next. The end of a block is indicated by an empty filename | |
140 | - this does not reset the current source file. Note there is no | |
141 | ordering of the ARCS and LINES records: they may be in any order, | |
142 | interleaved in any manner. The current filename follows the order | |
143 | the LINES records are stored in the file, *not* the ordering of the | |
144 | blocks they are for. | |
145 | ||
146 | The data file contains the following records. | |
512cc015 | 147 | data: {unit summary:object function-data*}* |
796621e8 | 148 | unit: header int32:checksum |
512cc015 | 149 | function-data: announce_function present counts |
10adac51 XDL |
150 | announce_function: header int32:ident |
151 | int32:lineno_checksum int32:cfg_checksum | |
5366b186 NS |
152 | present: header int32:present |
153 | counts: header int64:count* | |
512cc015 | 154 | summary: int32:checksum int32:runs int32:sum_max |
4977bab6 | 155 | |
160e2e4f | 156 | The ANNOUNCE_FUNCTION record is the same as that in the note file, |
5366b186 NS |
157 | but without the source location. The COUNTS gives the |
158 | counter values for instrumented features. The about the whole | |
160e2e4f NS |
159 | program. The checksum is used for whole program summaries, and |
160 | disambiguates different programs which include the same | |
161 | instrumented object file. There may be several program summaries, | |
5366b186 NS |
162 | each with a unique checksum. The object summary's checksum is |
163 | zero. Note that the data file might contain information from | |
164 | several runs concatenated, or the data might be merged. | |
4977bab6 ZW |
165 | |
166 | This file is included by both the compiler, gcov tools and the | |
546d2adb | 167 | runtime support library libgcov. IN_LIBGCOV and IN_GCOV are used to |
6356f892 KH |
168 | distinguish which case is which. If IN_LIBGCOV is nonzero, |
169 | libgcov is being built. If IN_GCOV is nonzero, the gcov tools are | |
546d2adb NS |
170 | being built. Otherwise the compiler is being built. IN_GCOV may be |
171 | positive or negative. If positive, we are compiling a tool that | |
172 | requires additional functions (see the code for knowledge of what | |
173 | those functions are). */ | |
4977bab6 | 174 | |
88657302 RH |
175 | #ifndef GCC_GCOV_IO_H |
176 | #define GCC_GCOV_IO_H | |
86144b75 | 177 | |
871e5ada ML |
178 | /* GCOV key-value pair linked list type. */ |
179 | ||
180 | struct gcov_kvp; | |
181 | ||
182 | struct gcov_kvp | |
183 | { | |
184 | gcov_type value; | |
185 | gcov_type count; | |
186 | struct gcov_kvp *next; | |
187 | }; | |
188 | ||
40d6b753 | 189 | #ifndef IN_LIBGCOV |
9b514d25 NS |
190 | /* About the host */ |
191 | ||
192 | typedef unsigned gcov_unsigned_t; | |
193 | typedef unsigned gcov_position_t; | |
194 | /* gcov_type is typedef'd elsewhere for the compiler */ | |
546d2adb | 195 | #if IN_GCOV |
474f141e | 196 | #define GCOV_LINKAGE static |
a9243bfc RB |
197 | typedef int64_t gcov_type; |
198 | typedef uint64_t gcov_type_unsigned; | |
546d2adb NS |
199 | #if IN_GCOV > 0 |
200 | #include <sys/types.h> | |
201 | #endif | |
202 | #endif | |
9b514d25 NS |
203 | |
204 | #if defined (HOST_HAS_F_SETLKW) | |
205 | #define GCOV_LOCKED 1 | |
206 | #else | |
207 | #define GCOV_LOCKED 0 | |
208 | #endif | |
209 | ||
9ec469f5 EB |
210 | #if defined (HOST_HAS_LK_LOCK) |
211 | #define GCOV_LOCKED_WITH_LOCKING 1 | |
212 | #else | |
213 | #define GCOV_LOCKED_WITH_LOCKING 0 | |
214 | #endif | |
215 | ||
cbbf9403 JJ |
216 | #define ATTRIBUTE_HIDDEN |
217 | ||
512cc015 | 218 | #endif /* !IN_LIBGCOV */ |
09780dfb | 219 | |
ca29da43 NS |
220 | #ifndef GCOV_LINKAGE |
221 | #define GCOV_LINKAGE extern | |
222 | #endif | |
e3f0315f TJ |
223 | |
224 | #if IN_LIBGCOV | |
225 | #define gcov_nonruntime_assert(EXPR) ((void)(0 && (EXPR))) | |
226 | #else | |
227 | #define gcov_nonruntime_assert(EXPR) gcc_assert (EXPR) | |
40fecdd6 | 228 | #define gcov_error(...) fatal_error (input_location, __VA_ARGS__) |
e3f0315f | 229 | #endif |
09780dfb | 230 | |
4977bab6 | 231 | /* File suffixes. */ |
160e2e4f NS |
232 | #define GCOV_DATA_SUFFIX ".gcda" |
233 | #define GCOV_NOTE_SUFFIX ".gcno" | |
4977bab6 | 234 | |
160e2e4f NS |
235 | /* File magic. Must not be palindromes. */ |
236 | #define GCOV_DATA_MAGIC ((gcov_unsigned_t)0x67636461) /* "gcda" */ | |
237 | #define GCOV_NOTE_MAGIC ((gcov_unsigned_t)0x67636e6f) /* "gcno" */ | |
39d80300 | 238 | #define GCOV_FILENAME_MAGIC ((gcov_unsigned_t)0x6763666e) /* "gcfn" */ |
4977bab6 | 239 | |
e3a682f4 | 240 | #include "version.h" |
4977bab6 | 241 | |
330d2e2a NS |
242 | /* Convert a magic or version number to a 4 character string. */ |
243 | #define GCOV_UNSIGNED2STRING(ARRAY,VALUE) \ | |
244 | ((ARRAY)[0] = (char)((VALUE) >> 24), \ | |
245 | (ARRAY)[1] = (char)((VALUE) >> 16), \ | |
246 | (ARRAY)[2] = (char)((VALUE) >> 8), \ | |
247 | (ARRAY)[3] = (char)((VALUE) >> 0)) | |
248 | ||
4977bab6 | 249 | /* The record tags. Values [1..3f] are for tags which may be in either |
160e2e4f | 250 | file. Values [41..9f] for those in the note file and [a1..ff] for |
00cf2913 | 251 | the data file. The tag value zero is used as an explicit end of |
23eb66d1 | 252 | file marker -- it is not required to be present. |
253 | All length values are in bytes. */ | |
254 | ||
255 | #define GCOV_WORD_SIZE 4 | |
4977bab6 | 256 | |
7d63a2fa | 257 | #define GCOV_TAG_FUNCTION ((gcov_unsigned_t)0x01000000) |
23eb66d1 | 258 | #define GCOV_TAG_FUNCTION_LENGTH (3 * GCOV_WORD_SIZE) |
7d63a2fa | 259 | #define GCOV_TAG_BLOCKS ((gcov_unsigned_t)0x01410000) |
330d2e2a | 260 | #define GCOV_TAG_BLOCKS_LENGTH(NUM) (NUM) |
7d63a2fa | 261 | #define GCOV_TAG_ARCS ((gcov_unsigned_t)0x01430000) |
23eb66d1 | 262 | #define GCOV_TAG_ARCS_LENGTH(NUM) (1 + (NUM) * 2 * GCOV_WORD_SIZE) |
263 | #define GCOV_TAG_ARCS_NUM(LENGTH) (((LENGTH / GCOV_WORD_SIZE) - 1) / 2) | |
08a52331 JK |
264 | #define GCOV_TAG_CONDS ((gcov_unsigned_t)0x01470000) |
265 | #define GCOV_TAG_CONDS_LENGTH(NUM) ((NUM) * 2 * GCOV_WORD_SIZE) | |
266 | #define GCOV_TAG_CONDS_NUM(LENGTH) (((LENGTH) / GCOV_WORD_SIZE) / 2) | |
7d63a2fa NS |
267 | #define GCOV_TAG_LINES ((gcov_unsigned_t)0x01450000) |
268 | #define GCOV_TAG_COUNTER_BASE ((gcov_unsigned_t)0x01a10000) | |
23eb66d1 | 269 | #define GCOV_TAG_COUNTER_LENGTH(NUM) ((NUM) * 2 * GCOV_WORD_SIZE) |
270 | #define GCOV_TAG_COUNTER_NUM(LENGTH) ((LENGTH / GCOV_WORD_SIZE) / 2) | |
512cc015 | 271 | #define GCOV_TAG_OBJECT_SUMMARY ((gcov_unsigned_t)0xa1000000) |
a9c83fb7 | 272 | #define GCOV_TAG_OBJECT_SUMMARY_LENGTH (2 * GCOV_WORD_SIZE) |
512cc015 | 273 | #define GCOV_TAG_PROGRAM_SUMMARY ((gcov_unsigned_t)0xa3000000) /* Obsolete */ |
be3c16c4 DC |
274 | #define GCOV_TAG_AFDO_FILE_NAMES ((gcov_unsigned_t)0xaa000000) |
275 | #define GCOV_TAG_AFDO_FUNCTION ((gcov_unsigned_t)0xac000000) | |
276 | #define GCOV_TAG_AFDO_WORKING_SET ((gcov_unsigned_t)0xaf000000) | |
9f71de84 | 277 | |
cdb23767 NS |
278 | |
279 | /* Counters that are collected. */ | |
c77556a5 RX |
280 | |
281 | #define DEF_GCOV_COUNTER(COUNTER, NAME, MERGE_FN) COUNTER, | |
282 | enum { | |
283 | #include "gcov-counter.def" | |
284 | GCOV_COUNTERS | |
285 | }; | |
286 | #undef DEF_GCOV_COUNTER | |
287 | ||
c77556a5 RX |
288 | /* The first of counters used for value profiling. They must form a |
289 | consecutive interval and their order must match the order of | |
290 | HIST_TYPEs in value-prof.h. */ | |
7f3577f5 | 291 | #define GCOV_FIRST_VALUE_COUNTER GCOV_COUNTER_V_INTERVAL |
c77556a5 RX |
292 | |
293 | /* The last of counters used for value profiling. */ | |
294 | #define GCOV_LAST_VALUE_COUNTER (GCOV_COUNTERS - 1) | |
6e885ee3 ZD |
295 | |
296 | /* Number of counters used for value profiling. */ | |
297 | #define GCOV_N_VALUE_COUNTERS \ | |
298 | (GCOV_LAST_VALUE_COUNTER - GCOV_FIRST_VALUE_COUNTER + 1) | |
b8698a0f | 299 | |
871e5ada ML |
300 | /* Number of top N counters when being in memory. */ |
301 | #define GCOV_TOPN_MEM_COUNTERS 3 | |
302 | ||
303 | /* Number of top N counters in disk representation. */ | |
304 | #define GCOV_TOPN_DISK_COUNTERS 2 | |
92d41717 | 305 | |
871e5ada ML |
306 | /* Maximum number of tracked TOP N value profiles. */ |
307 | #define GCOV_TOPN_MAXIMUM_TRACKED_VALUES 32 | |
92d41717 | 308 | |
71c0e7fc | 309 | /* Convert a counter index to a tag. */ |
cdb23767 | 310 | #define GCOV_TAG_FOR_COUNTER(COUNT) \ |
7d63a2fa | 311 | (GCOV_TAG_COUNTER_BASE + ((gcov_unsigned_t)(COUNT) << 17)) |
cdb23767 NS |
312 | /* Convert a tag to a counter. */ |
313 | #define GCOV_COUNTER_FOR_TAG(TAG) \ | |
7d63a2fa | 314 | ((unsigned)(((TAG) - GCOV_TAG_COUNTER_BASE) >> 17)) |
cdb23767 NS |
315 | /* Check whether a tag is a counter tag. */ |
316 | #define GCOV_TAG_IS_COUNTER(TAG) \ | |
317 | (!((TAG) & 0xFFFF) && GCOV_COUNTER_FOR_TAG (TAG) < GCOV_COUNTERS) | |
4977bab6 ZW |
318 | |
319 | /* The tag level mask has 1's in the position of the inner levels, & | |
320 | the lsb of the current level, and zero on the current and outer | |
321 | levels. */ | |
322 | #define GCOV_TAG_MASK(TAG) (((TAG) - 1) ^ (TAG)) | |
323 | ||
324 | /* Return nonzero if SUB is an immediate subtag of TAG. */ | |
325 | #define GCOV_TAG_IS_SUBTAG(TAG,SUB) \ | |
326 | (GCOV_TAG_MASK (TAG) >> 8 == GCOV_TAG_MASK (SUB) \ | |
c3284718 | 327 | && !(((SUB) ^ (TAG)) & ~GCOV_TAG_MASK (TAG))) |
4977bab6 ZW |
328 | |
329 | /* Return nonzero if SUB is at a sublevel to TAG. */ | |
330 | #define GCOV_TAG_IS_SUBLEVEL(TAG,SUB) \ | |
331 | (GCOV_TAG_MASK (TAG) > GCOV_TAG_MASK (SUB)) | |
332 | ||
333 | /* Basic block flags. */ | |
27283c73 | 334 | #define GCOV_BLOCK_UNEXPECTED (1 << 1) |
4977bab6 ZW |
335 | |
336 | /* Arc flags. */ | |
337 | #define GCOV_ARC_ON_TREE (1 << 0) | |
338 | #define GCOV_ARC_FAKE (1 << 1) | |
339 | #define GCOV_ARC_FALLTHROUGH (1 << 2) | |
7a9b535d JK |
340 | #define GCOV_ARC_TRUE (1 << 3) |
341 | #define GCOV_ARC_FALSE (1 << 4) | |
4977bab6 | 342 | |
4977bab6 | 343 | /* Object & program summary record. */ |
7f3577f5 | 344 | |
4977bab6 | 345 | struct gcov_summary |
86144b75 | 346 | { |
7f3577f5 | 347 | gcov_unsigned_t runs; /* Number of program runs. */ |
7f3577f5 | 348 | gcov_type sum_max; /* Sum of individual run max values. */ |
4977bab6 ZW |
349 | }; |
350 | ||
40d6b753 | 351 | #if !defined(inhibit_libc) |
4977bab6 | 352 | |
160e2e4f NS |
353 | /* Functions for reading and writing gcov files. In libgcov you can |
354 | open the file for reading then writing. Elsewhere you can open the | |
355 | file either for reading or for writing. When reading a file you may | |
68a4673f SH |
356 | use the gcov_read_* functions, gcov_sync, gcov_position, and |
357 | gcov_error. When writing a file you may use the gcov_write* | |
358 | functions and gcov_error. When a file is to be rewritten | |
160e2e4f NS |
359 | you use the functions for reading, then gcov_rewrite then the |
360 | functions for writing. Your file may become corrupted if you break | |
4ed43216 | 361 | these invariants. */ |
40d6b753 | 362 | |
17d1594b | 363 | #if !IN_LIBGCOV || defined (IN_GCOV_TOOL) |
160e2e4f NS |
364 | GCOV_LINKAGE int gcov_magic (gcov_unsigned_t, gcov_unsigned_t); |
365 | #endif | |
7d63a2fa NS |
366 | |
367 | /* Available everywhere. */ | |
d170ecc9 | 368 | GCOV_LINKAGE int gcov_open (const char *, int) ATTRIBUTE_HIDDEN; |
40d6b753 | 369 | GCOV_LINKAGE int gcov_close (void) ATTRIBUTE_HIDDEN; |
cbbf9403 JJ |
370 | GCOV_LINKAGE gcov_unsigned_t gcov_read_unsigned (void) ATTRIBUTE_HIDDEN; |
371 | GCOV_LINKAGE gcov_type gcov_read_counter (void) ATTRIBUTE_HIDDEN; | |
372 | GCOV_LINKAGE void gcov_read_summary (struct gcov_summary *) ATTRIBUTE_HIDDEN; | |
ca29da43 | 373 | GCOV_LINKAGE const char *gcov_read_string (void); |
7d63a2fa NS |
374 | GCOV_LINKAGE void gcov_sync (gcov_position_t /*base*/, |
375 | gcov_unsigned_t /*length */); | |
1f2bb38a | 376 | char *mangle_path (char const *base); |
7d63a2fa NS |
377 | |
378 | #if !IN_GCOV | |
379 | /* Available outside gcov */ | |
9124bbe1 | 380 | GCOV_LINKAGE void gcov_write (const void *, unsigned) ATTRIBUTE_HIDDEN; |
cbbf9403 | 381 | GCOV_LINKAGE void gcov_write_unsigned (gcov_unsigned_t) ATTRIBUTE_HIDDEN; |
7d63a2fa NS |
382 | #endif |
383 | ||
384 | #if !IN_GCOV && !IN_LIBGCOV | |
385 | /* Available only in compiler */ | |
386 | GCOV_LINKAGE void gcov_write_string (const char *); | |
676519f7 | 387 | GCOV_LINKAGE void gcov_write_filename (const char *); |
7d63a2fa NS |
388 | GCOV_LINKAGE gcov_position_t gcov_write_tag (gcov_unsigned_t); |
389 | GCOV_LINKAGE void gcov_write_length (gcov_position_t /*position*/); | |
390 | #endif | |
391 | ||
546d2adb | 392 | #if IN_GCOV > 0 |
7d63a2fa | 393 | /* Available in gcov */ |
ca29da43 | 394 | GCOV_LINKAGE time_t gcov_time (void); |
94de45d9 | 395 | #endif |
b7c9bf28 | 396 | |
40d6b753 | 397 | #endif /* !inhibit_libc */ |
474f141e | 398 | |
4977bab6 | 399 | #endif /* GCC_GCOV_IO_H */ |