https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65089
Jerry DeLisle <jvdelisle at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jvdelisle at gcc dot gnu.org
--- Comment #3 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
With the following patch, the fsanitize error goes away in the io_real_boz2
case. With -std=f2003 the case yields an expected runtime error. It is the
formatting of this error where the -fsanitize does not like referencing a
pointer for some reason.
Index: format.c
===================================================================
--- format.c (revision 221842)
+++ format.c (working copy)
@@ -1117,9 +1117,9 @@
void
format_error (st_parameter_dt *dtp, const fnode *f, const char *message)
{
- int width, i, offset;
+ int width, i, offset, len;
#define BUFLEN 300
- char *p, buffer[BUFLEN];
+ char *p, *q, buffer[BUFLEN];
format_data *fmt = dtp->u.p.fmt;
if (f != NULL)
@@ -1132,9 +1132,12 @@
else
snprintf (buffer, BUFLEN, "%s\n", message);
+ /* Find the length of the format string. */
+ for (q = p, len = 0; *q; len++, q++);
+
/* Get the offset into the format string where the error occurred. */
offset = dtp->format_len - (fmt->reversion_ok ?
- (int) strlen(p) : fmt->format_string_len);
+ len : fmt->format_string_len);
width = dtp->format_len;
