re PR other/20564 (gcov default behaviour changed)
PR other/20564 * gcov.c (output_lines): Only output function block summary when outputting branch information. * doc/gcov.texi: Document format of preamble and additional block information lines. From-SVN: r96788
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Nathan Sidwell
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@ -1,3 +1,11 @@
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2005-03-21 Nathan Sidwell <nathan@codesourcery.com>
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PR other/20564
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* gcov.c (output_lines): Only output function block summary when
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outputting branch information.
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* doc/gcov.texi: Document format of preamble and additional block
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information lines.
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2005-03-21 Richard Sandiford <rsandifo@redhat.com>
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* libgcc2.h (LIBGCC2_HAS_SF_MODE): New macro.
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@ -240,7 +248,6 @@
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scale_bbs_frequencies_int.
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* tree-ssa-loop-ch.c (copy_loop_headers): Fix profiling info.
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>>>>>>> 2.7929
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2005-03-18 Kazu Hirata <kazu@cs.umass.edu>
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* config/m32r/m32r-protos.h: Remove the prototypes for
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@ -488,6 +495,7 @@
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(arc_rodata_string, TARGET_OPTIONS): Delete.
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* config/arc/arc.opt: New file.
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>>>>>>> 2.7930
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2005-03-17 Richard Henderson <rth@redhat.com>
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* doc/extend.texi (Weak Pragmas): New section.
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@ -207,7 +207,7 @@ option is not supplied, it defaults to the current directory.
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@item -u
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@itemx --unconditional-branches
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When branch counts are given, include those of unconditional branches.
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When branch probabilities are given, include those of unconditional branches.
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Unconditional branches are normally not interesting.
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@end table
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@ -232,9 +232,27 @@ program source code. The format is
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Additional block information may succeed each line, when requested by
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command line option. The @var{execution_count} is @samp{-} for lines
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containing no code and @samp{#####} for lines which were never
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executed. Some lines of information at the start have @var{line_number}
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of zero.
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containing no code and @samp{#####} for lines which were never executed.
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Some lines of information at the start have @var{line_number} of zero.
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The preamble lines are of the form
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@smallexample
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-:0:@var{tag}:@var{value}
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@end smallexample
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The ordering and number of these preamble lines will be augmented as
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@command{gcov} development progresses --- do not rely on them remaining
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unchanged. Use @var{tag} to locate a particular preamble line.
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The additional block information is of the form
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@smallexample
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@var{tag} @var{information}
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@end smallexample
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The @var{information} is human readable, but designed to be simple
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enough for machine parsing too.
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When printing percentages, 0% and 100% are only printed when the values
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are @emph{exactly} 0% and 100% respectively. Other values which would
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@ -278,7 +296,6 @@ Here is a sample:
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-: 1:#include <stdio.h>
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-: 2:
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-: 3:int main (void)
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function main called 1 returned 1 blocks executed 75%
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1: 4:@{
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1: 5: int i, total;
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-: 6:
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@ -307,7 +324,6 @@ counts, and the output looks like this:
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-: 1:#include <stdio.h>
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-: 2:
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-: 3:int main (void)
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function main called 1 returned 1 blocks executed 75%
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1: 4:@{
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1: 4-block 0
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1: 5: int i, total;
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@ -390,6 +406,10 @@ call 0 called 1 returned 100%
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-: 17:@}
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@end smallexample
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For each function, a line is printed showing how many times the function
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is called, how many times it returns and what percentage of the
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function's blocks were executed.
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For each basic block, a line is printed after the last line of the basic
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block describing the branch or call that ends the basic block. There can
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be multiple branches and calls listed for a single source line if there
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@ -1774,7 +1774,7 @@ output_lines (FILE *gcov_file, const source_t *src)
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const line_t *line; /* current line info ptr. */
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char string[STRING_SIZE]; /* line buffer. */
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char const *retval = ""; /* status of source file reading. */
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function_t *fn = src->functions;
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function_t *fn = NULL;
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fprintf (gcov_file, "%9s:%5d:Source:%s\n", "-", 0, src->name);
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fprintf (gcov_file, "%9s:%5d:Graph:%s\n", "-", 0, bbg_file_name);
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@ -1803,6 +1803,9 @@ output_lines (FILE *gcov_file, const source_t *src)
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}
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}
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if (flag_branches)
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fn = src->functions;
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for (line_num = 1, line = &src->lines[line_num];
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line_num < src->num_lines; line_num++, line++)
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{
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@ -1810,11 +1813,11 @@ output_lines (FILE *gcov_file, const source_t *src)
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{
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arc_t *arc = fn->blocks[fn->num_blocks - 1].pred;
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gcov_type return_count = fn->blocks[fn->num_blocks - 1].count;
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for (; arc; arc = arc->pred_next)
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if (arc->fake)
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return_count -= arc->count;
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fprintf (gcov_file, "function %s", fn->name);
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fprintf (gcov_file, " called %s",
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format_gcov (fn->blocks[0].count, 0, -1));
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