[src/trunk]: src/sys/compat/linux/common Ignore signal 64 for now (go uses it)

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f2a67ce54a8b
branches:  trunk
changeset: 358559:f2a67ce54a8b
user:      christos <christos%NetBSD.org@localhost>
date:      Sun Jan 07 21:14:38 2018 +0000

description:
Ignore signal 64 for now (go uses it)
XXX: pullup-8

diffstat:

 sys/compat/linux/common/linux_sigaction.c |  13 +++++++++++--
 sys/compat/linux/common/linux_signal.c    |  13 +++++++++++--
 2 files changed, 22 insertions(+), 4 deletions(-)

diffs (68 lines):

diff -r c77332b20e5d -r f2a67ce54a8b sys/compat/linux/common/linux_sigaction.c
--- a/sys/compat/linux/common/linux_sigaction.c Sun Jan 07 20:59:24 2018 +0000
+++ b/sys/compat/linux/common/linux_sigaction.c Sun Jan 07 21:14:38 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: linux_sigaction.c,v 1.34 2008/10/17 20:21:34 njoly Exp $       */
+/*     $NetBSD: linux_sigaction.c,v 1.35 2018/01/07 21:14:38 christos Exp $    */
 
 /*-
  * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: linux_sigaction.c,v 1.34 2008/10/17 20:21:34 njoly Exp $");
+__KERNEL_RCSID(0, "$NetBSD: linux_sigaction.c,v 1.35 2018/01/07 21:14:38 christos Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -84,6 +84,15 @@
                linux_old_to_native_sigaction(&nbsa, &nlsa);
        }
        sig = SCARG(uap, signum);
+       /*
+        * XXX: Linux has 33 realtime signals, the go binary wants to
+        * reset all of them; nothing else uses the last RT signal, so for
+        * now ignore it.
+        */
+       if (sig == LINUX__NSIG) {
+               uprintf("%s: setting signal %d ignored\n", __func__, sig);
+               sig--;  /* back to 63 which is ignored */
+       }
        if (sig < 0 || sig >= LINUX__NSIG)
                return (EINVAL);
        if (sig > 0 && !linux_to_native_signo[sig]) {
diff -r c77332b20e5d -r f2a67ce54a8b sys/compat/linux/common/linux_signal.c
--- a/sys/compat/linux/common/linux_signal.c    Sun Jan 07 20:59:24 2018 +0000
+++ b/sys/compat/linux/common/linux_signal.c    Sun Jan 07 21:14:38 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: linux_signal.c,v 1.79 2017/02/20 16:30:41 rin Exp $    */
+/*     $NetBSD: linux_signal.c,v 1.80 2018/01/07 21:14:38 christos Exp $       */
 
 /*-
  * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
@@ -48,7 +48,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: linux_signal.c,v 1.79 2017/02/20 16:30:41 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: linux_signal.c,v 1.80 2018/01/07 21:14:38 christos Exp $");
 
 #define COMPAT_LINUX 1
 
@@ -346,6 +346,15 @@
        }
 
        sig = SCARG(uap, signum);
+       /*
+        * XXX: Linux has 33 realtime signals, the go binary wants to
+        * reset all of them; nothing else uses the last RT signal, so for
+        * now ignore it.
+        */
+       if (sig == LINUX__NSIG) {
+               uprintf("%s: setting signal %d ignored\n", __func__, sig);
+               sig--;  /* back to 63 which is ignored */
+       }
        if (sig < 0 || sig >= LINUX__NSIG)
                return EINVAL;
        if (sig > 0 && !linux_to_native_signo[sig]) {