https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95090
--- Comment #6 from anlauf at gcc dot gnu.org --- (In reply to Manfred Schwarb from comment #5) > gdb shows: > > Program received signal SIGSEGV, Segmentation fault. > 0xf7aa5162 in __strlen_sse2_bsf () from /lib/libc.so.6 > #0 0xf7aa5162 in __strlen_sse2_bsf () from /lib/libc.so.6 > #1 0x083e6def in get_unique_hashed_string(char*, gfc_symbol*) () Can you please try the following patch for me? diff --git a/gcc/fortran/class.c b/gcc/fortran/class.c index 9aa3eb7282c..065cd691a73 100644 --- a/gcc/fortran/class.c +++ b/gcc/fortran/class.c @@ -501,7 +501,8 @@ get_unique_type_string (char *string, gfc_symbol *derived) static void get_unique_hashed_string (char *string, gfc_symbol *derived) { - char tmp[2*GFC_MAX_SYMBOL_LEN+2]; + /* Provide sufficient space to hold "symbol_Pdtsymbol". */ + char tmp[2*GFC_MAX_SYMBOL_LEN+5]; get_unique_type_string (&tmp[0], derived); /* If string is too long, use hash value in hex representation (allow for extra decoration, cf. gfc_build_class_symbol & gfc_find_derived_vtab). Thanks.