Why after "umask u=rwx,g=rwx,o=" the generated files don't have permission to run?

Question

linux

Actually a subject.
umask u=rwx,g=rwx,o=
touch testfile
ls -l
output:
-rw-rw---- 1 karpovam clouds 0 Aug 9 11:15 testfile
and where is the cherished and expected -rwx-rwx--- ?? ? If anyone knows, please tell me.

Answer 1

touch test file

Using strace, you can see that touch opens the file with mode = 0666, so there is no x to come from:

$ strace -v -e open touch test
open("test", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3