Support merging of profiles that are built from a different .o files
but belong to the same source file. Moreover, a checksum is verified
during profile merging and so we can safely combine such profile.
PR gcov-profile/90364
gcc/ChangeLog:
* coverage.c (build_info): Emit checksum to the global variable.
(build_info_type): Add new field for checksum.
(coverage_obj_finish): Pass object_checksum.
(coverage_init): Use 0 as checksum for .gcno files.
* gcov-dump.c (dump_gcov_file): Dump also new checksum field.
* gcov.c (read_graph_file): Read also checksum.
* doc/invoke.texi: Document the behaviour change.
libgcc/ChangeLog:
* libgcov-driver.c (merge_one_data): Skip timestamp and verify
checksums.
(write_one_data): Write also checksum.
* libgcov-util.c (read_gcda_file): Read also checksum field.
* libgcov.h (struct gcov_info): Add new field.
gcc/ChangeLog:
PR gcov-profile/95348
* coverage.c (read_counts_file): Read only COUNTERS that are
not all-zero.
* gcov-dump.c (tag_function): Change signature from unsigned to
signed integer.
(tag_blocks): Likewise.
(tag_arcs): Likewise.
(tag_lines): Likewise.
(tag_counters): Likewise.
(tag_summary): Likewise.
* gcov.c (read_count_file): Read all non-zero counters
sensitively.
libgcc/ChangeLog:
PR gcov-profile/95348
* libgcov-driver.c (merge_one_data): Merge only profiles
that are not of non-zero type.
(write_one_data): Write counters only if there's one non-zero
value.
* libgcov-util.c (tag_function): Change signature from unsigned
to int.
(tag_blocks): Likewise.
(tag_arcs): Likewise.
(tag_counters): Likewise.
(tag_summary): Likewise.
(tag_lines): Read only if COUNTERS is non-zero.
(read_gcda_file): Handle negative length for COUNTERS type.
libgcc/ChangeLog:
* libgcov-driver.c (merge_summary): Remove function as its name
is misleading and doing something different.
(dump_one_gcov): Add ATTRIBUTE_UNUSED for 2 args. Take read summary
in gcov-tool.
* libgcov-util.c (curr_object_summary): Remove.
(read_gcda_file): Remove unused curr_object_summary.
(gcov_merge): Merge summaries.
* libgcov.h: Add summary argument for gcov_info struct.
libgcc/ChangeLog:
* libgcov-util.c (read_gcda_finalize): Remove const operator.
(merge_wrapper): Add both counts and use them properly.
(topn_to_memory_representation): New function.
(gcov_merge): Covert on disk representation to in memory
representation.
* libgcov.h: Remove const operator.
2018-09-21 Martin Liska <mliska@suse.cz>
* auto-profile.c (autofdo_source_profile::read): Do not
set sum_all.
(read_profile): Do not add working sets.
(read_autofdo_file): Remove sum_all.
(afdo_callsite_hot_enough_for_early_inline): Remove const
qualifier.
* coverage.c (struct counts_entry): Remove gcov_summary.
(read_counts_file): Read new GCOV_TAG_OBJECT_SUMMARY,
do not support GCOV_TAG_PROGRAM_SUMMARY.
(get_coverage_counts): Remove summary and expected
arguments.
* coverage.h (get_coverage_counts): Likewise.
* doc/gcov-dump.texi: Remove -w option.
* gcov-dump.c (dump_working_sets): Remove.
(main): Do not support '-w' option.
(print_usage): Likewise.
(tag_summary): Likewise.
* gcov-io.c (gcov_write_summary): Do not dump
histogram.
(gcov_read_summary): Likewise.
(gcov_histo_index): Remove.
(gcov_histogram_merge): Likewise.
(compute_working_sets): Likewise.
* gcov-io.h (GCOV_TAG_OBJECT_SUMMARY): Mark
it not obsolete.
(GCOV_TAG_PROGRAM_SUMMARY): Mark it obsolete.
(GCOV_TAG_SUMMARY_LENGTH): Adjust.
(GCOV_HISTOGRAM_SIZE): Remove.
(GCOV_HISTOGRAM_BITVECTOR_SIZE): Likewise.
(struct gcov_summary): Simplify rapidly just
to runs and sum_max fields.
(gcov_histo_index): Remove.
(NUM_GCOV_WORKING_SETS): Likewise.
(compute_working_sets): Likewise.
* gcov-tool.c (print_overlap_usage_message): Remove
trailing empty line.
* gcov.c (read_count_file): Read GCOV_TAG_OBJECT_SUMMARY.
(output_lines): Remove program related line.
* ipa-profile.c (ipa_profile): Do not consider GCOV histogram.
* lto-cgraph.c (output_profile_summary): Do not stream GCOV
histogram.
(input_profile_summary): Do not read it.
(merge_profile_summaries): And do not merge it.
(input_symtab): Do not call removed function.
* modulo-sched.c (sms_schedule): Do not print sum_max.
* params.def (HOT_BB_COUNT_FRACTION): Reincarnate param that was
removed when histogram method was invented.
(HOT_BB_COUNT_WS_PERMILLE): Mention that it's used only in LTO
mode.
* postreload-gcse.c (eliminate_partially_redundant_load): Fix
GCOV coding style.
* predict.c (get_hot_bb_threshold): Use HOT_BB_COUNT_FRACTION
and dump selected value.
* profile.c (add_working_set): Remove.
(get_working_sets): Likewise.
(find_working_set): Likewise.
(get_exec_counts): Do not work with working sets.
(read_profile_edge_counts): Do not inform as sum_max is removed.
(compute_branch_probabilities): Likewise.
(compute_value_histograms): Remove argument for call of
get_coverage_counts.
* profile.h: Do not make gcov_summary const.
2018-09-21 Martin Liska <mliska@suse.cz>
* libgcov-driver.c (crc32_unsigned): Remove.
(gcov_histogram_insert): Likewise.
(gcov_compute_histogram): Likewise.
(compute_summary): Simplify rapidly.
(merge_one_data): Do not handle PROGRAM_SUMMARY tag.
(merge_summary): Rapidly simplify.
(dump_one_gcov): Ignore gcov_summary.
(gcov_do_dump): Do not handle program summary, it's not
used.
* libgcov-util.c (tag_summary): Remove.
(read_gcda_finalize): Fix coding style.
(read_gcda_file): Initialize curr_object_summary.
(compute_summary): Remove.
(calculate_overlap): Remove settings of run_max.
From-SVN: r264462
2018-06-07 Martin Liska <mliska@suse.cz>
PR bootstrap/86057
* libgcov-driver-system.c (replace_filename_variables): Use
memcpy instead of mempcpy.
(allocate_filename_struct): Do not allocate filename, allocate
prefix and set it.
(gcov_exit_open_gcda_file): Allocate memory for gf->filename
here and properly copy content into it.
* libgcov-driver.c (struct gcov_filename): Remove max_length
field, change prefix from size_t into char *.
(compute_summary): Do not calculate longest filename.
(gcov_do_dump): Release memory of gf.filename after each file.
* libgcov-util.c (compute_summary): Use new signature of
compute_summary.
(calculate_overlap): Likewise.
From-SVN: r261260
2018-06-05 Martin Liska <mliska@suse.cz>
* auto-profile.c (read_autofdo_file): Do not use
gcov_ctr_summary struct.
(afdo_callsite_hot_enough_for_early_inline): Likewise.
* coverage.c (struct counts_entry): Likewise.
(read_counts_file): Read just single summary entry.
(get_coverage_counts): Use gcov_summary struct.
* coverage.h (get_coverage_counts): Likewise.
* gcov-dump.c (dump_working_sets): Likewise.
(tag_summary): Dump just single summary.
* gcov-io.c (gcov_write_summary): Write just histogram
summary.
(gcov_read_summary): Read just single summary.
(compute_working_sets): Use gcov_summary struct.
* gcov-io.h (GCOV_TAG_SUMMARY_LENGTH): Remove usage
of GCOV_COUNTERS_SUMMABLE.
(GCOV_COUNTERS_SUMMABLE): Remove.
(GCOV_FIRST_VALUE_COUNTER): Replace with
GCOV_COUNTER_V_INTERVAL.
(struct gcov_ctr_summary): Remove.
(struct gcov_summary): Directly use fields of former
gcov_ctr_summary.
(compute_working_sets): Use gcov_summary struct.
* gcov.c (read_count_file): Do not use ctrs fields.
* lto-cgraph.c (merge_profile_summaries): Use gcov_summary
struct.
* lto-streamer.h (struct GTY): Make profile_info gcov_summary
struct.
* profile.c: Likewise.
* profile.h: Likewise.
2018-06-05 Martin Liska <mliska@suse.cz>
* libgcov-driver.c (gcov_compute_histogram): Remove usage
of gcov_ctr_summary.
(compute_summary): Do it just for a single summary.
(merge_one_data): Likewise.
(merge_summary): Simplify as we read just single summary.
(dump_one_gcov): Pass proper argument.
* libgcov-util.c (compute_one_gcov): Simplify as we have just
single summary.
(gcov_info_count_all_cold): Likewise.
(calculate_overlap): Likewise.
From-SVN: r261189
* doc/gcov.texi: Change _gcov_dump to __gcov_dump and
_gcov_reset to __gcov_reset.
* doc/gcov-tool.texi: Fix typo.
* libgcov-util.c: Fix typo and GNU coding style.
From-SVN: r239307
PR target/65038
* config.in: Regenerated.
* configure: Likewise.
* configure.ac (AC_HEADER_STDC): Added explicit.
(AC_CHECK_HEADERS): Check for default headers plus
for ftw.h header.
* libgcov-util.c (gcov_read_profile_dir): Disable use
of ftw-function, if header is not found.
(ftw_read_file): Likewise.
From-SVN: r221059
2014-07-10 Rong Xu <xur@google.com>
Add gcov-tool: an offline gcda profile processing tool
Support.
* gcc/gcov-io.c (gcov_position): Make avaialble to gcov-tool.
(gcov_is_error): Ditto.
(gcov_read_string): Ditto.
(gcov_read_sync): Ditto.
* gcc/gcov-io.h: Move counter defines to gcov-counter.def.
* gcc/gcov-dump.c (tag_counters): Use gcov-counter.def.
* gcc/coverage.c: Ditto.
* gcc/gcov-tool.c: Offline gcda profile processing tool.
(unlink_gcda_file): Remove one gcda file.
(unlink_profile_dir): Remove gcda files from the profile path.
(gcov_output_files): Output gcda files to an output dir.
(profile_merge): Merge two profiles in directory.
(print_merge_usage_message): Print merge usage.
(merge_usage): Print merge usage and exit.
(do_merge): Driver for profile merge sub-command.
(profile_rewrite): Rewrite profile.
(print_rewrite_usage_message): Print rewrite usage.
(rewrite_usage): Print rewrite usage and exit.
(do_rewrite): Driver for profile rewrite sub-command.
(print_usage): Print gcov-info usage and exit.
(print_version): Print gcov-info version.
(process_args): Process arguments.
(main): Main routine for gcov-tool.
* gcc/Makefile.in: Build and install gcov-tool.
* gcc/gcov-counter.def: New file split from gcov-io.h.
* libgcc/libgcov-driver.c (gcov_max_filename): Make available
to gcov-tool.
* libgcc/libgcov-merge.c (__gcov_merge_add): Replace
gcov_read_counter() with a Macro.
(__gcov_merge_ior): Ditto.
(__gcov_merge_time_profile): Ditto.
(__gcov_merge_single): Ditto.
(__gcov_merge_delta): Ditto.
* libgcc/libgcov-util.c (void gcov_set_verbose): Set the verbose flag
in the utility functions.
(set_fn_ctrs): Utility function for reading gcda files to in-memory
gcov_list object link lists.
(tag_function): Ditto.
(tag_blocks): Ditto.
(tag_arcs): Ditto.
(tag_lines): Ditto.
(tag_counters): Ditto.
(tag_summary): Ditto.
(read_gcda_finalize): Ditto.
(read_gcda_file): Ditto.
(ftw_read_file): Ditto.
(read_profile_dir_init): Ditto.
(gcov_read_profile_dir): Ditto.
(gcov_read_counter_mem): Ditto.
(gcov_get_merge_weight): Ditto.
(merge_wrapper): A wrapper function that calls merging handler.
(gcov_merge): Merge two gcov_info objects with weights.
(find_match_gcov_info): Find the matched gcov_info in the list.
(gcov_profile_merge): Merge two gcov_info object lists.
(__gcov_add_counter_op): Process edge profile counter values.
(__gcov_ior_counter_op): Process IOR profile counter values.
(__gcov_delta_counter_op): Process delta profile counter values.
(__gcov_single_counter_op): Process single profile counter values.
(fp_scale): Callback function for float-point scaling.
(int_scale): Callback function for integer fraction scaling.
(gcov_profile_scale): Scaling profile counters.
(gcov_profile_normalize): Normalize profile counters.
* libgcc/libgcov.h: Add headers and functions for gcov-tool use.
(gcov_get_counter): New.
(gcov_get_counter_target): Ditto.
(struct gcov_info): Make the functions field mutable in gcov-tool
compilation.
* gcc/doc/gcc.texi: Include gcov-tool.texi.
* gcc/doc/gcov-tool.texi: Document for gcov-tool.
From-SVN: r212448
Jakub Jelinek
Martin Liska
Jakub Jelinek
Martin Sebor
Gilles Gouaillardet
Uros Bizjak
Kai Tietz
Kai Tietz
Rong Xu
Rong Xu
Nathan Sidwell