kern_sig.c: use uppercase for defines

[Martin Pieuchot]

ok?

Index: kern/kern_sig.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_sig.c,v
retrieving revision 1.278
diff -u -p -r1.278 kern_sig.c
--- kern/kern_sig.c     12 Mar 2021 10:13:28 -0000      1.278
+++ kern/kern_sig.c     20 Mar 2021 12:12:26 -0000
@@ -118,8 +118,8 @@ const int sigprop[NSIG + 1] = {
        SA_IGNORE,              /* SIGTHR */
 };
 
-#define        contsigmask     (sigmask(SIGCONT))
-#define        stopsigmask     (sigmask(SIGSTOP) | sigmask(SIGTSTP) | \
+#define        CONTSIGMASK     (sigmask(SIGCONT))
+#define        STOPSIGMASK     (sigmask(SIGSTOP) | sigmask(SIGTSTP) | \
                            sigmask(SIGTTIN) | sigmask(SIGTTOU))
 
 void setsigvec(struct proc *, int, struct sigaction *);
@@ -996,11 +996,11 @@ ptsignal(struct proc *p, int signum, enu
        siglist = (type == SPROCESS) ? &pr->ps_siglist : &p->p_siglist;
        if (prop & SA_CONT) {
                siglist = &p->p_siglist;
-               atomic_clearbits_int(siglist, stopsigmask);
+               atomic_clearbits_int(siglist, STOPSIGMASK);
        }
        if (prop & SA_STOP) {
                siglist = &p->p_siglist;
-               atomic_clearbits_int(siglist, contsigmask);
+               atomic_clearbits_int(siglist, CONTSIGMASK);
                atomic_clearbits_int(&p->p_flag, P_CONTINUED);
        }
        atomic_setbits_int(siglist, mask);
@@ -1194,7 +1194,7 @@ cursig(struct proc *p)
        for (;;) {
                mask = SIGPENDING(p);
                if (pr->ps_flags & PS_PPWAIT)
-                       mask &= ~stopsigmask;
+                       mask &= ~STOPSIGMASK;
                if (mask == 0)          /* no signal to send */
                        return (0);
                signum = ffs((long)mask);