native Linux: enable always non-stop by default

The testsuite shows no regressions with this forced on, on:

 - Native x86_64 Fedora 20, with and output "set displaced off".

 - Native x86_64 Fedora 20, on top of x86 software single-step series.

 - PPC64 Fedora 18.

 - S/390 RHEL 7.1.

Let's try making it the default.

gdb/ChangeLog:
2015-08-07  Pedro Alves  <palves@redhat.com>

	* linux-nat.c (linux_nat_always_non_stop_p): Return 1.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 4c95b27942f319cb131e6e6194a68052de534d37..493ec619d40f54469da40d9708411b2888439933 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2015-08-07  Pedro Alves  <palves@redhat.com>
+
+       * linux-nat.c (linux_nat_always_non_stop_p): Return 1.
+
 2015-08-07  Pedro Alves  <palves@redhat.com>
 
        * s390-linux-tdep.c (is_non_branch_ril)

diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c
index 19d452c03f85a2332b7fd575ebf482e95a5093db..be7a9150d333157e796a8b942611408ebde68a00 100644 (file)
--- a/gdb/linux-nat.c
+++ b/gdb/linux-nat.c
@@ -4594,7 +4594,7 @@ linux_nat_supports_non_stop (struct target_ops *self)
 static int
 linux_nat_always_non_stop_p (struct target_ops *self)
 {
-  return 0;
+  return 1;
 }
 
 /* True if we want to support multi-process.  To be removed when GDB