* gcov-io.h (gcov_write_bytes, gcov_read_bytes): Remove here.
(GCOV_TAG_*) Force type to gcov_unsigned_t.
(GCOV_CHECK, GCOV_CHECK_READING, GCOV_CHECK_WRITING): New.
(struct gcov_var): Remove modified. Add start, length, offset,
overread. Have buffer array for libgcov.
(gcov_sync, gcov_seek): Definitions moved to gcov-io.c.
(gcov_position, gcov_rewrite, gcov_is_eof): Adjust.
* gcov-io.c (gcov_open): Set mode, do not read anything.
(gcov_close): Write final block.
(gcov_write_block, gcov_allocate): New.
(gcov_write_bytes): Make static. Write or allocate buffer.
(gcov_write_unsigned, gcov_write_counter): Buffer can never be
null.
(gcov_write_string): Adjust.
(gcov_write_tag)
(gcov_write_length): Adjust. Flush the block.
(gcov_write_tag_length): Buffer can never be null.
(gcov_read_bytes): Make static. Read in block.
(gcov_sync): Moved here. Adjust.
(gcov_seek): Moved here. Adjust.
* coverage.c (read_counts_file): Adjust.
* gcov-dump.c (print_prefix): Add position parameter.
(flag_dump_positions): New flag.
(options, main, print_usage): Add it.
(dump_file, tag_blocks, tag_arcs, tag_lines, tag_counters,
tag_summary): Adjust.
* gcov.c (read_graph_file, read_count_file): Adjust.
* libgcov.c (gcov_exit): Adjust.
From-SVN: r66805
