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riscv-gcc-1
Commit 114e78f8 by Jan Hubicka Committed by Jan Hubicka
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* libgcc2.c (__bb_exit_func): Kill -ax dumping code. 

From-SVN: r48159
parent b1bf2706
Showing with 100 additions and 225 deletions
gcc/ChangeLog
Tue Dec 18 16:37:42 CET 2001 Jan Hubicka <jh@suse.cz>
* libgcc2.c (__bb_exit_func): Kill -ax dumping code.
2001-12-18 Jason Merrill <jason@redhat.com>
C++ ABI change: destroy value arguments in caller.
......
gcc/libgcc2.c
......@@ -1332,275 +1332,146 @@ static int num_digits (long long value, int base) __attribute__ ((const));
void
__bb_exit_func (void)
{
FILE *da_file, *file;
FILE *da_file;
long time_value;
int i;
struct bb *ptr;
if (bb_head == 0)
return;
i = strlen (bb_head->filename) - 3;
if (!strcmp (bb_head->filename+i, ".da"))
{
/* Must be -fprofile-arcs not -a.
Dump data in a form that gcov expects. */
struct bb *ptr;
for (ptr = bb_head; ptr != (struct bb *) 0; ptr = ptr->next)
for (ptr = bb_head; ptr != (struct bb *) 0; ptr = ptr->next)
{
int firstchar;
/* Make sure the output file exists -
but don't clobber exiting data. */
if ((da_file = fopen (ptr->filename, "a")) != 0)
fclose (da_file);
/* Need to re-open in order to be able to write from the start. */
da_file = fopen (ptr->filename, "r+b");
/* Some old systems might not allow the 'b' mode modifier.
Therefore, try to open without it. This can lead to a race
condition so that when you delete and re-create the file, the
file might be opened in text mode, but then, you shouldn't
delete the file in the first place. */
if (da_file == 0)
da_file = fopen (ptr->filename, "r+");
if (da_file == 0)
{
int firstchar;
/* Make sure the output file exists -
but don't clobber exiting data. */
if ((da_file = fopen (ptr->filename, "a")) != 0)
fclose (da_file);
/* Need to re-open in order to be able to write from the start. */
da_file = fopen (ptr->filename, "r+b");
/* Some old systems might not allow the 'b' mode modifier.
Therefore, try to open without it. This can lead to a race
condition so that when you delete and re-create the file, the
file might be opened in text mode, but then, you shouldn't
delete the file in the first place. */
if (da_file == 0)
da_file = fopen (ptr->filename, "r+");
if (da_file == 0)
{
fprintf (stderr, "arc profiling: Can't open output file %s.\n",
ptr->filename);
continue;
}
fprintf (stderr, "arc profiling: Can't open output file %s.\n",
ptr->filename);
continue;
}
/* After a fork, another process might try to read and/or write
the same file simultanously. So if we can, lock the file to
avoid race conditions. */
/* After a fork, another process might try to read and/or write
the same file simultanously. So if we can, lock the file to
avoid race conditions. */
#if defined (TARGET_HAS_F_SETLKW)
{
struct flock s_flock;
{
struct flock s_flock;
s_flock.l_type = F_WRLCK;
s_flock.l_whence = SEEK_SET;
s_flock.l_start = 0;
s_flock.l_len = 1;
s_flock.l_pid = getpid ();
s_flock.l_type = F_WRLCK;
s_flock.l_whence = SEEK_SET;
s_flock.l_start = 0;
s_flock.l_len = 1;
s_flock.l_pid = getpid ();
while (fcntl (fileno (da_file), F_SETLKW, &s_flock)
&& errno == EINTR);
}
while (fcntl (fileno (da_file), F_SETLKW, &s_flock)
&& errno == EINTR);
}
#endif
/* If the file is not empty, and the number of counts in it is the
same, then merge them in. */
firstchar = fgetc (da_file);
if (firstchar == EOF)
/* If the file is not empty, and the number of counts in it is the
same, then merge them in. */
firstchar = fgetc (da_file);
if (firstchar == EOF)
{
if (ferror (da_file))
{
if (ferror (da_file))
{
fprintf (stderr, "arc profiling: Can't read output file ");
perror (ptr->filename);
}
fprintf (stderr, "arc profiling: Can't read output file ");
perror (ptr->filename);
}
else
{
long n_counts = 0;
if (ungetc (firstchar, da_file) == EOF)
rewind (da_file);
if (__read_long (&n_counts, da_file, 8) != 0)
{
fprintf (stderr, "arc profiling: Can't read output file %s.\n",
ptr->filename);
continue;
}
if (n_counts == ptr->ncounts)
{
int i;
for (i = 0; i < n_counts; i++)
{
gcov_type v = 0;
if (__read_gcov_type (&v, da_file, 8) != 0)
{
fprintf (stderr, "arc profiling: Can't read output file %s.\n",
ptr->filename);
break;
}
ptr->counts[i] += v;
}
}
}
rewind (da_file);
/* ??? Should first write a header to the file. Preferably, a 4 byte
magic number, 4 bytes containing the time the program was
compiled, 4 bytes containing the last modification time of the
source file, and 4 bytes indicating the compiler options used.
That way we can easily verify that the proper source/executable/
data file combination is being used from gcov. */
}
else
{
long n_counts = 0;
if (__write_gcov_type (ptr->ncounts, da_file, 8) != 0)
if (ungetc (firstchar, da_file) == EOF)
rewind (da_file);
if (__read_long (&n_counts, da_file, 8) != 0)
{
fprintf (stderr, "arc profiling: Error writing output file %s.\n",
fprintf (stderr, "arc profiling: Can't read output file %s.\n",
ptr->filename);
continue;
}
else
if (n_counts == ptr->ncounts)
{
int j;
gcov_type *count_ptr = ptr->counts;
int ret = 0;
for (j = ptr->ncounts; j > 0; j--)
int i;
for (i = 0; i < n_counts; i++)
{
if (__write_gcov_type (*count_ptr, da_file, 8) != 0)
gcov_type v = 0;
if (__read_gcov_type (&v, da_file, 8) != 0)
{
ret=1;
fprintf (stderr,
"arc profiling: Can't read output file %s.\n",
ptr->filename);
break;
}
count_ptr++;
ptr->counts[i] += v;
}
if (ret)
fprintf (stderr, "arc profiling: Error writing output file %s.\n",
ptr->filename);
}
if (fclose (da_file) == EOF)
fprintf (stderr, "arc profiling: Error closing output file %s.\n",
ptr->filename);
}
return;
}
/* Must be basic block profiling. Emit a human readable output file. */
file = fopen ("bb.out", "a");
if (!file)
perror ("bb.out");
else
{
struct bb *ptr;
rewind (da_file);
/* This is somewhat type incorrect, but it avoids worrying about
exactly where time.h is included from. It should be ok unless
a void * differs from other pointer formats, or if sizeof (long)
is < sizeof (time_t). It would be nice if we could assume the
use of rationale standards here. */
/* ??? Should first write a header to the file. Preferably, a 4 byte
magic number, 4 bytes containing the time the program was
compiled, 4 bytes containing the last modification time of the
source file, and 4 bytes indicating the compiler options used.
time ((void *) &time_value);
fprintf (file, "Basic block profiling finished on %s\n",
ctime ((void *) &time_value));
That way we can easily verify that the proper source/executable/
data file combination is being used from gcov. */
/* We check the length field explicitly in order to allow compatibility
with older GCC's which did not provide it. */
if (__write_gcov_type (ptr->ncounts, da_file, 8) != 0)
{
for (ptr = bb_head; ptr != (struct bb *) 0; ptr = ptr->next)
fprintf (stderr, "arc profiling: Error writing output file %s.\n",
ptr->filename);
}
else
{
int i;
int func_p = (ptr->nwords >= (long) sizeof (struct bb)
&& ptr->nwords <= 1000
&& ptr->functions);
int line_p = (func_p && ptr->line_nums);
int file_p = (func_p && ptr->filenames);
int addr_p = (ptr->addresses != 0);
long ncounts = ptr->ncounts;
gcov_type cnt_max = 0;
long line_max = 0;
long addr_max = 0;
int file_len = 0;
int func_len = 0;
int blk_len = num_digits (ncounts, 10);
int cnt_len;
int line_len;
int addr_len;
fprintf (file, "File %s, %ld basic blocks \n\n",
ptr->filename, ncounts);
/* Get max values for each field. */
for (i = 0; i < ncounts; i++)
int j;
gcov_type *count_ptr = ptr->counts;
int ret = 0;
for (j = ptr->ncounts; j > 0; j--)
{
const char *p;
int len;
if (cnt_max < ptr->counts[i])
cnt_max = ptr->counts[i];
if (addr_p && (unsigned long) addr_max < ptr->addresses[i])
addr_max = ptr->addresses[i];
if (line_p && line_max < ptr->line_nums[i])
line_max = ptr->line_nums[i];
if (func_p)
if (__write_gcov_type (*count_ptr, da_file, 8) != 0)
{
p = (ptr->functions[i]) ? (ptr->functions[i]) : "<none>";
len = strlen (p);
if (func_len < len)
func_len = len;
ret = 1;
break;
}
if (file_p)
{
p = (ptr->filenames[i]) ? (ptr->filenames[i]) : "<none>";
len = strlen (p);
if (file_len < len)
file_len = len;
}
}
addr_len = num_digits (addr_max, 16);
cnt_len = num_digits (cnt_max, 10);
line_len = num_digits (line_max, 10);
/* Now print out the basic block information. */
for (i = 0; i < ncounts; i++)
{
#if LONG_TYPE_SIZE == GCOV_TYPE_SIZE
fprintf (file,
" Block #%*d: executed %*ld time(s)",
blk_len, i+1,
cnt_len, ptr->counts[i]);
#else
fprintf (file,
" Block #%*d: executed %*lld time(s)",
blk_len, i+1,
cnt_len, ptr->counts[i]);
#endif
if (addr_p)
fprintf (file, " address= 0x%.*lx", addr_len,
ptr->addresses[i]);
if (func_p)
fprintf (file, " function= %-*s", func_len,
(ptr->functions[i]) ? ptr->functions[i] : "<none>");
if (line_p)
fprintf (file, " line= %*ld", line_len, ptr->line_nums[i]);
if (file_p)
fprintf (file, " file= %s",
(ptr->filenames[i]) ? ptr->filenames[i] : "<none>");
fprintf (file, "\n");
count_ptr++;
}
fprintf (file, "\n");
fflush (file);
if (ret)
fprintf (stderr, "arc profiling: Error writing output file %s.\n",
ptr->filename);
}
fprintf (file, "\n\n");
fclose (file);
if (fclose (da_file) == EOF)
fprintf (stderr, "arc profiling: Error closing output file %s.\n",
ptr->filename);
}
return;
}
void
......
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