[release-branch.go1.5] runtime: ignore rt_sigaction error if it is fo…

…r SIGRTMAX A forward port of https://codereview.appspot.com/124900043/ which somehow got lost somewhere. Fixes #13024 Change-Id: Iab128899e65c51d90f6704e3e1b2fc9326e3a1c2 Reviewed-on: https://go-review.googlesource.com/16853 Reviewed-by: Russ Cox <[email protected]> Reviewed-on: https://go-review.googlesource.com/16986 Run-TryBot: Austin Clements <[email protected]> Reviewed-by: Ian Lance Taylor <[email protected]>
golang · Nov 17, 2015 · 20a0536 · 20a0536
1 parent a8e839b
commit 20a0536
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/runtime/os1_linux.go b/src/runtime/os1_linux.go
@@ -293,7 +293,8 @@ func setsig(i int32, fn uintptr, restart bool) {
 		fn = funcPC(sigtramp)
 	}
 	sa.sa_handler = fn
-	if rt_sigaction(uintptr(i), &sa, nil, unsafe.Sizeof(sa.sa_mask)) != 0 {
+	// Qemu rejects rt_sigaction of SIGRTMAX (64).
+	if rt_sigaction(uintptr(i), &sa, nil, unsafe.Sizeof(sa.sa_mask)) != 0 && i != 64 {
 		throw("rt_sigaction failure")
 	}
 }