1lcovrc(5) User Manuals lcovrc(5)
2
6 lcovrc - lcov configuration file
7
10 The lcovrc file contains configuration information for the lcov code
11 coverage tool (see lcov(1)).
12 The system-wide configuration file is located at /etc/lcovrc. To
14 change settings for a single user, place a customized copy of this file
15 at location ~/.lcovrc. Where available, command-line options override
16 configuration file settings.
17 Lines in a configuration file can either be:
19 * empty lines or lines consisting only of white space characters.
21 These lines are ignored.
22 * comment lines which start with a hash sign ('#'). These are
24 treated like empty lines and will be ignored.
25 * statements in the form 'key = value'. A list of valid state‐
27 ments and their description can be found in section 'OPTIONS'
28 below.
29 Example configuration:
31 #
33 # Example LCOV configuration file
34 #
35 # External style sheet file
37 #genhtml_css_file = gcov.css
38 # Coverage rate limits
40 genhtml_hi_limit = 90
41 genhtml_med_limit = 75
42 # Width of line coverage field in source code view
44 genhtml_line_field_width = 12
45 # Width of branch coverage field in source code view
47 genhtml_branch_field_width = 16
48 # Width of overview image
50 genhtml_overview_width = 80
51 # Resolution of overview navigation
53 genhtml_nav_resolution = 4
54 # Offset for source code navigation
56 genhtml_nav_offset = 10
57 # Do not remove unused test descriptions if non-zero
59 genhtml_keep_descriptions = 0
60 # Do not remove prefix from directory names if non-zero
62 genhtml_no_prefix = 0
63 # Do not create source code view if non-zero
65 genhtml_no_source = 0
66 # Specify size of tabs
68 genhtml_num_spaces = 8
69 # Highlight lines with converted-only data if non-zero
71 genhtml_highlight = 0
72 # Include color legend in HTML output if non-zero
74 genhtml_legend = 0
75 # Include HTML file at start of HTML output
77 #genhtml_html_prolog = prolog.html
78 # Include HTML file at end of HTML output
80 #genhtml_html_epilog = epilog.html
81 # Use custom HTML file extension
83 #genhtml_html_extension = html
84 # Compress all generated html files with gzip.
86 #genhtml_html_gzip = 1
87 # Include sorted overview pages
89 genhtml_sort = 1
90 # Include function coverage data display
92 #genhtml_function_coverage = 1
93 # Include branch coverage data display
95 #genhtml_branch_coverage = 1
96 # Specify the character set of all generated HTML pages
98 genhtml_charset=UTF-8
99 # Allow HTML markup in test case description text if non-zero
101 genhtml_desc_html=0
102 # Specify the precision for coverage rates
104 #genhtml_precision=1
105 # Show missed counts instead of hit counts
107 #genhtml_missed=1
108 # Demangle C++ symbols
110 #genhtml_demangle_cpp=1
111 # Location of the gcov tool
113 #geninfo_gcov_tool = gcov
114 # Adjust test names if non-zero
116 #geninfo_adjust_testname = 0
117 # Calculate a checksum for each line if non-zero
119 geninfo_checksum = 0
120 # Enable libtool compatibility mode if non-zero
122 geninfo_compat_libtool = 0
123 # Specify whether to capture coverage data for external source
125 # files
126 #geninfo_external = 1
127 # Use gcov's --all-blocks option if non-zero
129 #geninfo_gcov_all_blocks = 1
130 # Specify compatiblity modes (same as --compat option
132 # of geninfo)
133 #geninfo_compat = libtool=on, hammer=auto, split_crc=auto
134 # Adjust path to source files by removing or changing path
136 # components that match the specified pattern (Perl regular
137 # expression format)
138 #geninfo_adjust_src_path = /tmp/build => /usr/src
139 # Specify if geninfo should try to automatically determine
141 # the base-directory when collecting coverage data.
142 geninfo_auto_base = 1
143 # Use gcov intermediate format? Valid values are 0, 1, auto
145 geninfo_intermediate = auto
146 # Directory containing gcov kernel files
148 lcov_gcov_dir = /proc/gcov
149 # Location for temporary directories
151 lcov_tmp_dir = /tmp
152 # Show full paths during list operation if non-zero
154 lcov_list_full_path = 0
155 # Specify the maximum width for list output. This value is
157 # ignored when lcov_list_full_path is non-zero.
158 lcov_list_width = 80
159 # Specify the maximum percentage of file names which may be
161 # truncated when choosing a directory prefix in list output.
162 # This value is ignored when lcov_list_full_path is non-zero.
163 lcov_list_truncate_max = 20
164 # Specify if function coverage data should be collected and
166 # processed.
167 lcov_function_coverage = 1
168 # Specify if branch coverage data should be collected and
170 # processed.
171 lcov_branch_coverage = 0
172
174 genhtml_css_file = filename
175 Specify an external style sheet file. Use this option to modify
177 the appearance of the HTML output as generated by genhtml. Dur‐
178 ing output generation, a copy of this file will be placed in the
179 output directory.
180 This option corresponds to the --css-file command line option of
182 genhtml.
183 By default, a standard CSS file is generated.
185 genhtml_hi_limit = hi_limit
187 genhtml_med_limit = med_limit
188 Specify coverage rate limits for classifying file entries. Use
190 this option to modify the coverage rates (in percent) for line,
191 function and branch coverage at which a result is classified as
192 high, medium or low coverage. This classification affects the
193 color of the corresponding entries on the overview pages of the
194 HTML output:
195 High: hi_limit <= rate <= 100 default color: green
197 Medium: med_limit <= rate < hi_limit default color: orange
198 Low: 0 <= rate < med_limit default color: red
199 Defaults are 90 and 75 percent.
201 genhtml_line_field_width = number_of_characters
203 Specify the width (in characters) of the source code view column
205 containing line coverage information.
206 Default is 12.
208 genhtml_branch_field_width = number_of_characters
210 Specify the width (in characters) of the source code view column
212 containing branch coverage information.
213 Default is 16.
215 genhtml_overview_width = pixel_size
217 Specify the width (in pixel) of the overview image created when
219 generating HTML output using the --frames option of genhtml.
220 Default is 80.
222 genhtml_nav_resolution = lines
224 Specify the resolution of overview navigation when generating
226 HTML output using the --frames option of genhtml. This number
227 specifies the maximum difference in lines between the position a
228 user selected from the overview and the position the source code
229 window is scrolled to.
230 Default is 4.
232 genhtml_nav_offset = lines
234 Specify the overview navigation line offset as applied when gen‐
236 erating HTML output using the --frames option of genhtml.
237 Clicking a line in the overview image should show the source
239 code view at a position a bit further up, so that the requested
240 line is not the first line in the window. This number specifies
241 that offset.
242 Default is 10.
244 genhtml_keep_descriptions = 0|1
246 If non-zero, keep unused test descriptions when generating HTML
248 output using genhtml.
249 This option corresponds to the --keep-descriptions option of
251 genhtml.
252 Default is 0.
254 genhtml_no_prefix = 0|1
256 If non-zero, do not try to find and remove a common prefix from
258 directory names.
259 This option corresponds to the --no-prefix option of genhtml.
261 Default is 0.
263 genhtml_no_source = 0|1
265 If non-zero, do not create a source code view when generating
267 HTML output using genhtml.
268 This option corresponds to the --no-source option of genhtml.
270 Default is 0.
272 genhtml_num_spaces = num
274 Specify the number of spaces to use as replacement for tab char‐
276 acters in the HTML source code view as generated by genhtml.
277 This option corresponds to the --num-spaces option of genthml.
279 Default is 8.
281 genhtml_highlight = 0|1
284 If non-zero, highlight lines with converted-only data in HTML
286 output as generated by genhtml.
287 This option corresponds to the --highlight option of genhtml.
289 Default is 0.
291 genhtml_legend = 0|1
293 If non-zero, include a legend explaining the meaning of color
295 coding in the HTML output as generated by genhtml.
296 This option corresponds to the --legend option of genhtml.
298 Default is 0.
300 genhtml_html_prolog = filename
302 If set, include the contents of the specified file at the begin‐
304 ning of HTML output.
305 This option corresponds to the --html-prolog option of genhtml.
307 Default is to use no extra prolog.
309 genhtml_html_epilog = filename
311 If set, include the contents of the specified file at the end of
313 HTML output.
314 This option corresponds to the --html-epilog option of genhtml.
316 Default is to use no extra epilog.
318 genhtml_html_extension = extension
320 If set, use the specified string as filename extension for gen‐
322 erated HTML files.
323 This option corresponds to the --html-extension option of gen‐
325 html.
326 Default extension is "html".
328 genhtml_html_gzip = 0|1
330 If set, compress all html files using gzip.
332 This option corresponds to the --html-gzip option of genhtml.
334 Default extension is 0.
336 genhtml_sort = 0|1
338 If non-zero, create overview pages sorted by coverage rates when
340 generating HTML output using genhtml.
341 This option can be set to 0 by using the --no-sort option of
343 genhtml.
344 Default is 1.
346 genhtml_function_coverage = 0|1
348 If non-zero, include function coverage data when generating HTML
350 output using genhtml.
351 This option can be set to 0 by using the --no-function-coverage
353 option of genhtml.
354 Default is 1.
356 genhtml_branch_coverage = 0|1
358 If non-zero, include branch coverage data when generating HTML
360 output using genhtml.
361 This option can be set to 0 by using the --no-branch-coverage
363 option of genhtml.
364 Default is 1.
366 genhtml_charset = charset
368 Specify the character set of all generated HTML pages.
370 Use this option if the source code contains characters which are
372 not part of the default character set. Note that this option is
373 ignored when a custom HTML prolog is specified (see also gen‐
374 html_html_prolog).
375 Default is UTF-8.
377 genhtml_demangle_cpp = 0|1
379 If non-zero, demangle C++ function names in function overviews.
381 Set this option to one if you want to convert C++ internal func‐
383 tion names to human readable format for display on the HTML
384 function overview page. This option requires that the c++filt
385 tool is installed (see c++filt(1) ).
386 This option corresponds to the --demangle-cpp command line op‐
388 tion of genhtml.
389 Default is 0.
391 genhtml_desc_html = 0|1
393 If non-zero, test case descriptions may contain HTML markup.
395 Set this option to one if you want to embed HTML markup (for ex‐
397 ample to include links) in test case descriptions. When set to
398 zero, HTML markup characters will be escaped to show up as plain
399 text on the test case description page.
400 Default is 0.
402 genhtml_precision = 1|2|3|4
404 Specify how many digits after the decimal-point should be used
406 for displaying coverage rates.
407 Default is 1.
409 genhtml_missed = 0|1
411 If non-zero, the count of missed lines, functions, or branches
413 is shown as negative numbers in overview pages.
414 Default is 0.
416 geninfo_gcov_tool = path_to_gcov
418 Specify the location of the gcov tool (see gcov(1)) which is
420 used to generate coverage information from data files.
421 Default is 'gcov'.
423 geninfo_adjust_testname = 0|1
425 If non-zero, adjust test names to include operating system in‐
427 formation when capturing coverage data.
428 Default is 0.
430 geninfo_checksum = 0|1
432 If non-zero, generate source code checksums when capturing cov‐
434 erage data. Checksums are useful to prevent merging coverage
435 data from incompatible source code versions but checksum genera‐
436 tion increases the size of coverage files and the time used to
437 generate those files.
438 This option corresponds to the --checksum and --no-checksum com‐
440 mand line option of geninfo.
441 Default is 0.
443 geninfo_compat_libtool = 0|1
445 If non-zero, enable libtool compatibility mode. When libtool
447 compatibility mode is enabled, lcov will assume that the source
448 code relating to a .da file located in a directory named ".libs"
449 can be found in its parent directory.
450 This option corresponds to the --compat-libtool and --no-com‐
452 pat-libtool command line option of geninfo.
453 Default is 1.
455 geninfo_external = 0|1
457 If non-zero, capture coverage data for external source files.
459 External source files are files which are not located in one of
461 the directories (including sub-directories) specified by the
462 --directory or --base-directory options of lcov/geninfo.
463 Default is 1.
465 geninfo_gcov_all_blocks = 0|1
467 If non-zero, call the gcov tool with option --all-blocks.
469 Using --all-blocks will produce more detailed branch coverage
471 information for each line. Set this option to zero if you do not
472 need detailed branch coverage information to speed up the
473 process of capturing code coverage or to work around a bug in
474 some versions of gcov which will cause it to endlessly loop when
475 analysing some files.
476 Default is 1.
478 geninfo_compat = mode=value[,mode=value,...]
480 Specify that geninfo should enable one or more compatibility
482 modes when capturing coverage data.
483 This option corresponds to the --compat command line option of
485 geninfo.
486 Default is 'libtool=on, hammer=auto, split_crc=auto'.
488 geninfo_adjust_src_path = pattern => replacement
490 geninfo_adjust_src_path = pattern
491 Adjust source paths when capturing coverage data.
493 Use this option in situations where geninfo cannot find the cor‐
495 rect path to source code files of a project. By providing a pat‐
496 tern in Perl regular expression format (see perlre(1)) and an
497 optional replacement string, you can instruct geninfo to remove
498 or change parts of the incorrect source path.
499 Example:
501 1. When geninfo reports that it cannot find source file
503 /path/to/src/.libs/file.c
505 while the file is actually located in
507 /path/to/src/file.c
509 use the following parameter:
511 geninfo_adjust_src_path = /.libs
513 This will remove all "/.libs" strings from the path.
515 2. When geninfo reports that it cannot find source file
517 /tmp/build/file.c
519 while the file is actually located in
521 /usr/src/file.c
523 use the following parameter:
525 geninfo_adjust_src_path = /tmp/build => /usr/src
527 This will change all "/tmp/build" strings in the path to
529 "/usr/src".
530 geninfo_auto_base = 0|1
532 If non-zero, apply a heuristic to determine the base directory
534 when collecting coverage data.
535 Use this option when using geninfo on projects built with
537 libtool or similar build environments that work with multiple
538 base directories, i.e. environments, where the current working
539 directory when invoking the compiler ist not the same directory
540 in which the source code file is located, and in addition, is
541 different between files of the same project.
542 Default is 1.
544 geninfo_intermediate = 0|1|auto
546 Specify whether to use gcov intermediate format
548 Use this option to control whether geninfo should use the gcov
550 intermediate format while collecting coverage data. The use of
551 the gcov intermediate format should increase processing speed.
552 It also provides branch coverage data when using the --initial
553 command line option.
554 Valid values are 0 for off, 1 for on, and "auto" to let geninfo
556 automatically use immediate format when supported by gcov.
557 Default is "auto".
559 lcov_gcov_dir = path_to_kernel_coverage_data
561 Specify the path to the directory where kernel coverage data can
563 be found or leave undefined for auto-detection.
564 Default is auto-detection.
566 lcov_tmp_dir = temp
568 Specify the location of a directory used for temporary files.
570 Default is '/tmp'.
572 lcov_list_full_path = 0|1
574 If non-zero, print the full path to source code files during a
576 list operation.
577 This option corresponds to the --list-full-path option of lcov.
579 Default is 0.
581 lcov_list_max_width = width
583 Specify the maximum width for list output. This value is ignored
585 when lcov_list_full_path is non-zero.
586 Default is 80.
588 lcov_list_truncate_max = percentage
590 Specify the maximum percentage of file names which may be trun‐
592 cated when choosing a directory prefix in list output. This
593 value is ignored when lcov_list_full_path is non-zero.
594 Default is 20.
596 lcov_function_coverage = 0|1
598 Specify whether lcov should handle function coverage data.
600 Setting this option to 0 can reduce memory and CPU time consump‐
602 tion when lcov is collecting and processing coverage data, as
603 well as reduce the size of the resulting data files. Note that
604 setting genhtml_function_coverage will override this option for
605 HTML generation.
606 Default is 1.
608 lcov_branch_coverage = 0|1
610 Specify whether lcov should handle branch coverage data.
612 Setting this option to 0 can reduce memory and CPU time consump‐
614 tion when lcov is collecting and processing coverage data, as
615 well as reduce the size of the resulting data files. Note that
616 setting genhtml_branch_coverage will override this option for
617 HTML generation.
618 Default is 0.
620 lcov_excl_line = expression
622 Specify the regular expression of lines to exclude.
624 Default is 'LCOV_EXCL_LINE'.
626 lcov_excl_br_line = expression
628 Specify the regular expression of lines to exclude from branch
630 coverage.
631 Default is 'LCOV_EXCL_BR_LINE'.
633
635 /etc/lcovrc
636 The system-wide lcov configuration file.
637 ~/.lcovrc
640 The individual per-user configuration file.
641
643 lcov(1), genhtml(1), geninfo(1), gcov(1)
6442022-07-21 LCOV 1.14 lcovrc(5)