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* libgcc2.c (__bb_exit_func): Kill -ax dumping code.
From-SVN: r48159
This commit is contained in:
Jan Hubicka
Jan Hubicka
parent
b1bf2706e8
commit
114e78f8f0
@ -1,3 +1,7 @@
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Tue Dec 18 16:37:42 CET 2001 Jan Hubicka <jh@suse.cz>
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* libgcc2.c (__bb_exit_func): Kill -ax dumping code.
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2001-12-18 Jason Merrill <jason@redhat.com>
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C++ ABI change: destroy value arguments in caller.
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341
gcc/libgcc2.c
341
gcc/libgcc2.c
@ -1332,275 +1332,146 @@ static int num_digits (long long value, int base) __attribute__ ((const));
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void
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__bb_exit_func (void)
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{
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FILE *da_file, *file;
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FILE *da_file;
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long time_value;
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int i;
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struct bb *ptr;
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if (bb_head == 0)
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return;
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i = strlen (bb_head->filename) - 3;
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if (!strcmp (bb_head->filename+i, ".da"))
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for (ptr = bb_head; ptr != (struct bb *) 0; ptr = ptr->next)
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{
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/* Must be -fprofile-arcs not -a.
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Dump data in a form that gcov expects. */
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int firstchar;
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struct bb *ptr;
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/* Make sure the output file exists -
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but don't clobber exiting data. */
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if ((da_file = fopen (ptr->filename, "a")) != 0)
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fclose (da_file);
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for (ptr = bb_head; ptr != (struct bb *) 0; ptr = ptr->next)
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/* Need to re-open in order to be able to write from the start. */
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da_file = fopen (ptr->filename, "r+b");
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/* Some old systems might not allow the 'b' mode modifier.
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Therefore, try to open without it. This can lead to a race
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condition so that when you delete and re-create the file, the
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file might be opened in text mode, but then, you shouldn't
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delete the file in the first place. */
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if (da_file == 0)
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da_file = fopen (ptr->filename, "r+");
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if (da_file == 0)
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{
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int firstchar;
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fprintf (stderr, "arc profiling: Can't open output file %s.\n",
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ptr->filename);
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continue;
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}
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/* Make sure the output file exists -
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but don't clobber exiting data. */
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if ((da_file = fopen (ptr->filename, "a")) != 0)
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fclose (da_file);
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/* After a fork, another process might try to read and/or write
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the same file simultanously. So if we can, lock the file to
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avoid race conditions. */
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#if defined (TARGET_HAS_F_SETLKW)
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{
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struct flock s_flock;
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/* Need to re-open in order to be able to write from the start. */
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da_file = fopen (ptr->filename, "r+b");
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/* Some old systems might not allow the 'b' mode modifier.
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Therefore, try to open without it. This can lead to a race
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condition so that when you delete and re-create the file, the
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file might be opened in text mode, but then, you shouldn't
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delete the file in the first place. */
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if (da_file == 0)
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da_file = fopen (ptr->filename, "r+");
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if (da_file == 0)
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s_flock.l_type = F_WRLCK;
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s_flock.l_whence = SEEK_SET;
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s_flock.l_start = 0;
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s_flock.l_len = 1;
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s_flock.l_pid = getpid ();
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while (fcntl (fileno (da_file), F_SETLKW, &s_flock)
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&& errno == EINTR);
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}
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#endif
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/* If the file is not empty, and the number of counts in it is the
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same, then merge them in. */
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firstchar = fgetc (da_file);
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if (firstchar == EOF)
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{
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if (ferror (da_file))
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{
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fprintf (stderr, "arc profiling: Can't open output file %s.\n",
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fprintf (stderr, "arc profiling: Can't read output file ");
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perror (ptr->filename);
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}
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}
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else
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{
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long n_counts = 0;
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if (ungetc (firstchar, da_file) == EOF)
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rewind (da_file);
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if (__read_long (&n_counts, da_file, 8) != 0)
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{
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fprintf (stderr, "arc profiling: Can't read output file %s.\n",
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ptr->filename);
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continue;
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}
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/* After a fork, another process might try to read and/or write
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the same file simultanously. So if we can, lock the file to
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avoid race conditions. */
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#if defined (TARGET_HAS_F_SETLKW)
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{
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struct flock s_flock;
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s_flock.l_type = F_WRLCK;
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s_flock.l_whence = SEEK_SET;
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s_flock.l_start = 0;
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s_flock.l_len = 1;
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s_flock.l_pid = getpid ();
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while (fcntl (fileno (da_file), F_SETLKW, &s_flock)
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&& errno == EINTR);
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}
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#endif
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/* If the file is not empty, and the number of counts in it is the
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same, then merge them in. */
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firstchar = fgetc (da_file);
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if (firstchar == EOF)
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if (n_counts == ptr->ncounts)
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{
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if (ferror (da_file))
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{
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fprintf (stderr, "arc profiling: Can't read output file ");
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perror (ptr->filename);
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}
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}
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else
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{
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long n_counts = 0;
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int i;
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if (ungetc (firstchar, da_file) == EOF)
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rewind (da_file);
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if (__read_long (&n_counts, da_file, 8) != 0)
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for (i = 0; i < n_counts; i++)
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{
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fprintf (stderr, "arc profiling: Can't read output file %s.\n",
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ptr->filename);
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continue;
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}
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gcov_type v = 0;
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if (n_counts == ptr->ncounts)
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{
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int i;
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for (i = 0; i < n_counts; i++)
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if (__read_gcov_type (&v, da_file, 8) != 0)
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{
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gcov_type v = 0;
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if (__read_gcov_type (&v, da_file, 8) != 0)
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{
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fprintf (stderr, "arc profiling: Can't read output file %s.\n",
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ptr->filename);
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break;
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}
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ptr->counts[i] += v;
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}
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}
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}
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rewind (da_file);
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/* ??? Should first write a header to the file. Preferably, a 4 byte
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magic number, 4 bytes containing the time the program was
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compiled, 4 bytes containing the last modification time of the
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source file, and 4 bytes indicating the compiler options used.
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That way we can easily verify that the proper source/executable/
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data file combination is being used from gcov. */
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if (__write_gcov_type (ptr->ncounts, da_file, 8) != 0)
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{
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fprintf (stderr, "arc profiling: Error writing output file %s.\n",
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ptr->filename);
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}
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else
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{
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int j;
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gcov_type *count_ptr = ptr->counts;
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int ret = 0;
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for (j = ptr->ncounts; j > 0; j--)
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{
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if (__write_gcov_type (*count_ptr, da_file, 8) != 0)
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{
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ret=1;
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fprintf (stderr,
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"arc profiling: Can't read output file %s.\n",
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ptr->filename);
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break;
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}
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count_ptr++;
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ptr->counts[i] += v;
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}
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if (ret)
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fprintf (stderr, "arc profiling: Error writing output file %s.\n",
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ptr->filename);
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}
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if (fclose (da_file) == EOF)
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fprintf (stderr, "arc profiling: Error closing output file %s.\n",
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}
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rewind (da_file);
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/* ??? Should first write a header to the file. Preferably, a 4 byte
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magic number, 4 bytes containing the time the program was
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compiled, 4 bytes containing the last modification time of the
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source file, and 4 bytes indicating the compiler options used.
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That way we can easily verify that the proper source/executable/
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data file combination is being used from gcov. */
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if (__write_gcov_type (ptr->ncounts, da_file, 8) != 0)
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{
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fprintf (stderr, "arc profiling: Error writing output file %s.\n",
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ptr->filename);
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}
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else
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{
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int j;
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gcov_type *count_ptr = ptr->counts;
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int ret = 0;
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for (j = ptr->ncounts; j > 0; j--)
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{
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if (__write_gcov_type (*count_ptr, da_file, 8) != 0)
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{
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ret = 1;
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break;
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}
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count_ptr++;
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}
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if (ret)
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fprintf (stderr, "arc profiling: Error writing output file %s.\n",
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ptr->filename);
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}
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return;
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if (fclose (da_file) == EOF)
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fprintf (stderr, "arc profiling: Error closing output file %s.\n",
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ptr->filename);
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}
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/* Must be basic block profiling. Emit a human readable output file. */
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file = fopen ("bb.out", "a");
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if (!file)
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perror ("bb.out");
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else
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{
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struct bb *ptr;
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/* This is somewhat type incorrect, but it avoids worrying about
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exactly where time.h is included from. It should be ok unless
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a void * differs from other pointer formats, or if sizeof (long)
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is < sizeof (time_t). It would be nice if we could assume the
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use of rationale standards here. */
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time ((void *) &time_value);
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fprintf (file, "Basic block profiling finished on %s\n",
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ctime ((void *) &time_value));
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/* We check the length field explicitly in order to allow compatibility
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with older GCC's which did not provide it. */
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for (ptr = bb_head; ptr != (struct bb *) 0; ptr = ptr->next)
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{
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int i;
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int func_p = (ptr->nwords >= (long) sizeof (struct bb)
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&& ptr->nwords <= 1000
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&& ptr->functions);
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int line_p = (func_p && ptr->line_nums);
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int file_p = (func_p && ptr->filenames);
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int addr_p = (ptr->addresses != 0);
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long ncounts = ptr->ncounts;
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gcov_type cnt_max = 0;
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long line_max = 0;
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long addr_max = 0;
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int file_len = 0;
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int func_len = 0;
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int blk_len = num_digits (ncounts, 10);
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int cnt_len;
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int line_len;
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int addr_len;
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fprintf (file, "File %s, %ld basic blocks \n\n",
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ptr->filename, ncounts);
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/* Get max values for each field. */
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for (i = 0; i < ncounts; i++)
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{
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const char *p;
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int len;
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if (cnt_max < ptr->counts[i])
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cnt_max = ptr->counts[i];
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if (addr_p && (unsigned long) addr_max < ptr->addresses[i])
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addr_max = ptr->addresses[i];
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if (line_p && line_max < ptr->line_nums[i])
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line_max = ptr->line_nums[i];
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if (func_p)
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{
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p = (ptr->functions[i]) ? (ptr->functions[i]) : "<none>";
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len = strlen (p);
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if (func_len < len)
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func_len = len;
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}
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if (file_p)
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{
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p = (ptr->filenames[i]) ? (ptr->filenames[i]) : "<none>";
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len = strlen (p);
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if (file_len < len)
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file_len = len;
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}
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}
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addr_len = num_digits (addr_max, 16);
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cnt_len = num_digits (cnt_max, 10);
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line_len = num_digits (line_max, 10);
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/* Now print out the basic block information. */
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for (i = 0; i < ncounts; i++)
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{
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#if LONG_TYPE_SIZE == GCOV_TYPE_SIZE
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fprintf (file,
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" Block #%*d: executed %*ld time(s)",
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blk_len, i+1,
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cnt_len, ptr->counts[i]);
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#else
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fprintf (file,
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" Block #%*d: executed %*lld time(s)",
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blk_len, i+1,
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cnt_len, ptr->counts[i]);
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#endif
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if (addr_p)
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fprintf (file, " address= 0x%.*lx", addr_len,
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ptr->addresses[i]);
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if (func_p)
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fprintf (file, " function= %-*s", func_len,
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(ptr->functions[i]) ? ptr->functions[i] : "<none>");
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if (line_p)
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fprintf (file, " line= %*ld", line_len, ptr->line_nums[i]);
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if (file_p)
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fprintf (file, " file= %s",
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(ptr->filenames[i]) ? ptr->filenames[i] : "<none>");
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fprintf (file, "\n");
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}
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fprintf (file, "\n");
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fflush (file);
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}
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fprintf (file, "\n\n");
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fclose (file);
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}
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return;
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}
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void
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