With the attached patch we get rid of the following build failure: /home/andreas/build/../gcc/gcc/config/s390/s390.c: In function ‘void s390_option_override()’: /home/andreas/build/../gcc/gcc/config/s390/s390.c:15361:16: error: ‘char* strncpy(char*, const char*, size_t)’ specified bound 256 equals destination size [-Werror=stringop-truncation] strncpy (s, opt->arg, 256); ~~~~~~~~^~~~~~~~~~~~~~~~~~
gcc/ChangeLog: 2017-12-18 Andreas Krebbel <kreb...@linux.vnet.ibm.com> PR target/83420 * config/s390/s390.c (s390_option_override): Avoid strncpy. --- gcc/config/s390/s390.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c index 0b04ac0..6f2a189 100644 --- a/gcc/config/s390/s390.c +++ b/gcc/config/s390/s390.c @@ -15357,16 +15357,11 @@ s390_option_override (void) { int val1; int val2; - char s[256]; - char *t; + char *s = strtok (ASTRDUP (opt->arg), ","); + char *t = strtok (NULL, "\0"); - strncpy (s, opt->arg, 256); - s[255] = 0; - t = strchr (s, ','); if (t != NULL) { - *t = 0; - t++; val1 = integral_argument (s); val2 = integral_argument (t); } -- 2.9.1