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coverage.c (checksum_string): Rename to ... 

* coverage.c (checksum_string): Rename to ...
	(coverage_checksum_string): ... this one, Use crc32_string; recognize
	names containing random number and zero the number out in order to get
	match.

From-SVN: r76102
This commit is contained in:
Jan Hubicka 2004-01-18 16:10:23 +01:00 committed by Jan Hubicka
parent cacb5bba75
commit 20c361f30e
2 changed files with 52 additions and 16 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2004-01-18 Jan Hubicka <jh@suse.cz>
* coverage.c (checksum_string): Rename to ...
(coverage_checksum_string): ... this one, Use crc32_string; recognize
names containing random number and zero the number out in order to get
match.
2004-01-18 Richard Sandiford <rsandifo@redhat.com>
* config/mips/mips.c (mips_got_alias_set): Mark for PCH.

61
gcc/coverage.c
View File

@ -109,7 +109,7 @@ static int htab_counts_entry_eq (const void *, const void *);
static void htab_counts_entry_del (void *);
static void read_counts_file (void);
static unsigned compute_checksum (void);
static unsigned checksum_string (unsigned, const char *);
static unsigned coverage_checksum_string (unsigned, const char *);
static tree build_fn_info_type (unsigned);
static tree build_fn_info_value (const struct function_list *, tree);
static tree build_ctr_info_type (void);
@ -405,23 +405,51 @@ coverage_counter_ref (unsigned counter, unsigned no)
checksum. */
static unsigned
checksum_string (unsigned chksum, const char *string)
coverage_checksum_string (unsigned chksum, const char *string)
{
do
int i;
char *dup = NULL;
/* Look for everything that looks if it were produced by
get_file_function_name_long and zero out the second part
that may result from flag_random_seed. This is not critical
as the checksums are used only for sanity checking. */
for (i = 0; string[i]; i++)
{
unsigned value = *string << 24;
unsigned ix;
if (!strncmp (string + i, "_GLOBAL__", 9))
for (i = i + 9; string[i]; i++)
if (string[i]=='_')
{
int y;
unsigned seed;
for (ix = 8; ix--; value <<= 1)
{
unsigned feedback;
feedback = (value ^ chksum) & 0x80000000 ? 0x04c11db7 : 0;
chksum <<= 1;
chksum ^= feedback;
}
for (y = 1; y < 9; y++)
if (!(string[i + y] >= '0' && string[i + y] <= '9')
&& !(string[i + y] >= 'A' && string[i + y] <= 'F'))
break;
if (y != 9 || string[i + 9] != '_')
continue;
for (y = 10; y < 18; y++)
if (!(string[i + y] >= '0' && string[i + y] <= '9')
&& !(string[i + y] >= 'A' && string[i + y] <= 'F'))
break;
if (y != 18)
continue;
if (!sscanf (string + i + 10, "%X", &seed))
abort ();
if (seed != crc32_string (0, flag_random_seed))
continue;
string = dup = xstrdup (string);
for (y = 10; y < 18; y++)
dup[i + y] = '0';
break;
}
break;
}
while (*string++);
chksum = crc32_string (chksum, string);
if (dup)
free (dup);
return chksum;
}
@ -433,8 +461,9 @@ compute_checksum (void)
{
unsigned chksum = DECL_SOURCE_LINE (current_function_decl);
chksum = checksum_string (chksum, DECL_SOURCE_FILE (current_function_decl));
chksum = checksum_string
chksum = coverage_checksum_string (chksum,
DECL_SOURCE_FILE (current_function_decl));
chksum = coverage_checksum_string
(chksum, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)));
return chksum;