* libgcov.c (gcov_crc32): Remove global var.
(free_fn_data): New function.
(buffer_fn_data): Pass in filename, more robust error recovery.
(crc32_unsigned): New function.
(gcov_exit): More robust detection of new program. More robust
error recovery.
(__gcov_init): Do not update program's crc here.
From-SVN: r182743
libgcc/
* libgcov.c (struct gcov_fn_buffer): New struct.
(buffer_fn_data): New helper.
(gcov_exit): Rework for new gcov data structures.
gcc/
* gcov.c (object_summary): Replace with ...
(object_runs): ... this.
(process_file): Remove functions with no data.
(generate_results): Ignore files with no lines.
(release_function): New helper, broken out of ...
(release_structures): ... here. Use it.
(read_count_file): Adjust for new data file format.
(output_lines): Use object_runs.
* gcov-io.h (GCOV_TAG_OBJECT_SUMMARY): Obsolete.
(struct gcov_ctr_info): Move definition.
(struct gcov_fn_info): Add key field, use gcov_ctr_info for
trailing array.
(struct gcov_info): Add merge function array, remove mask and
counts. Trailing array is array of pointers to function info.
* coverage.c (struct function_list): Replace counter numbers with
counter arrays. Add fndecl field. GTYify.
(counts_entry): Remove chain workspace.
(functions_head): GTYify.
(prg_n_ctrs): Remove.
(fn_v_ctrs): New.
(tree_ctr_tables): Remove.
(read_counts_file): Cope with blank entries and expect program
summaries before functions. Don't warn on missing entries.
(coverage_counter_alloc): Allocate individual function arrays.
(tree_coverage_counter_ref, tree_coverage_counter_addr): Adjust
for individual function arrays.
(coverage_end_function): GTYify function list object. Finalize
function's counter arrays.
(build_var): New. Create a counter-related variable with
appropriate linkage.
(build_fn_info_type): Adjust for new runtime structure.
(build_fn_info_value): Rename to ...
(build_fn_info): ... here. Build new format data.
(build_ctr_info_type, build_ctr_info_value): Remove.
(build_info_type): New. Build new format data structure.
(build_info): Adjust for new format data.
(create_coverage): Likewise.
* gcov-dump.c (tag_function): Recognize placeholders.
gcc/testsuite/
* gcc.dg/profile-dir-1.c: Adjust final scan.
* gcc.dg/profile-dir-2.c: Adjust final scan.
* gcc.dg/profile-dir-3.c: Adjust final scan.
* gcc.misc-tests/gcov.exp: Adjust regexp.
* gcc.misc-tests/gcov-12.c: New.
* gcc.misc-tests/gcov-13.c: New.
* gcc.misc-tests/gcovpart-13b.c: New.
* gcc.misc-tests/gcov-14.c: New.
From-SVN: r181105
