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Describe better version mismatch in libgcov driver. 

2019-01-18  Martin Liska  <mliska@suse.cz>

	* libgcov-driver.c (gcov_version_string): New function.
	(gcov_version): Convert version integer into string.

From-SVN: r268069
This commit is contained in:
Martin Liska 2019-01-18 12:30:56 +01:00 committed by Martin Liska
parent cd0b2d361d
commit be9d9fdbed
2 changed files with 32 additions and 2 deletions
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5
libgcc/ChangeLog
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@ -1,3 +1,8 @@
2019-01-18 Martin Liska <mliska@suse.cz>
* libgcov-driver.c (gcov_version_string): New function.
(gcov_version): Convert version integer into string.
2019-01-17 Andrew Stubbs <ams@codesourcery.com>
Kwok Cheung Yeung <kcy@codesourcery.com>
Julian Brown <julian@codesourcery.com>

29
libgcc/libgcov-driver.c
View File

@ -157,6 +157,27 @@ fail:
return (struct gcov_fn_buffer **)free_fn_data (gi_ptr, fn_buffer, ix);
}
/* Convert VERSION into a string description and return the it.
BUFFER is used for storage of the string. The code should be
aligned wit gcov-iov.c. */
static char *
gcov_version_string (char *buffer, char version[4])
{
if (version[0] < 'A' || version[0] > 'Z'
|| version[1] < '0' || version[1] > '9'
|| version[2] < '0' || version[2] > '9')
sprintf (buffer, "(unknown)");
else
{
unsigned major = 10 * (version[0] - 'A') + (version[1] - '0');
unsigned minor = version[2] - '0';
sprintf (buffer, "%u.%u (%s)", major, minor,
version[3] == '*' ? "release" : "experimental");
}
return buffer;
}
/* Check if VERSION of the info block PTR matches libgcov one.
Return 1 on success, or zero in case of versions mismatch.
If FILENAME is not NULL, its value used for reporting purposes
@ -169,12 +190,16 @@ gcov_version (struct gcov_info *ptr, gcov_unsigned_t version,
if (version != GCOV_VERSION)
{
char v[4], e[4];
char version_string[128], expected_string[128];
GCOV_UNSIGNED2STRING (v, version);
GCOV_UNSIGNED2STRING (e, GCOV_VERSION);
gcov_error ("profiling:%s:Version mismatch - expected %.4s got %.4s\n",
filename? filename : ptr->filename, e, v);
gcov_error ("profiling:%s:Version mismatch - expected %s (%.4s) "
"got %s (%.4s)\n",
filename? filename : ptr->filename,
gcov_version_string (expected_string, e), e,
gcov_version_string (version_string, v), v);
return 0;
}
return 1;