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gcov-toolgcov-tool [global-options] SUB_COMMAND [sub_command-options] profile_dir
gcov-tool accepts the following options:
-h--helpDisplay help about using gcov-tool (on the standard output), and
exit without doing any further processing.
-v--versionDisplay the gcov-tool version number (on the standard output),
and exit without doing any further processing.
mergeMerge two profile directories.
-o directory--output directorySet the output profile directory. Default output directory name is merged_profile.
-v--verboseSet the verbose mode.
-w w1,w2--weight w1,w2Set the merge weights of the directory1 and directory2, respectively. The default weights are 1 for both.
rewriteRead the specified profile directory and rewrite to a new directory.
-n long_long_value--normalize <long_long_value>Normalize the profile. The specified value is the max counter value in the new profile.
-o directory--output directorySet the output profile directory. Default output name is rewrite_profile.
-s float_or_simple-frac_value--scale float_or_simple-frac_valueScale the profile counters. The specified value can be in floating point value, or simple fraction value form, such 1, 2, 2/3, and 5/3.
-v--verboseSet the verbose mode.
overlapCompute the overlap score between the two specified profile directories. The overlap score is computed based on the arc profiles. It is defined as the sum of min (p1_counter[i] / p1_sum_all, p2_counter[i] / p2_sum_all), for all arc counter i, where p1_counter[i] and p2_counter[i] are two matched counters and p1_sum_all and p2_sum_all are the sum of counter values in profile 1 and profile 2, respectively.
-f--functionPrint function level overlap score.
-F--fullnamePrint full gcda filename.
-h--hotonlyOnly print info for hot objects/functions.
-o--objectPrint object level overlap score.
-t float--hot_threshold <float>Set the threshold for hot counter value.
-v--verboseSet the verbose mode.
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