[binutils-gdb] gdb.base/async.exp: Handle "asynchronous execution not supported"

[Kevin Buettner <kevinb at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=5fc2beac27f81d0840e717e3dd8d6524f9c2e890

commit 5fc2beac27f81d0840e717e3dd8d6524f9c2e890
Author: Kevin Buettner <kevinb@redhat.com>
Date:   Mon Dec 7 23:07:29 2015 -0700

    gdb.base/async.exp: Handle "asynchronous execution not supported"
    
    This change eliminates some failures on simulator targets and makes
    the test run a bit quicker too - without this change, we have to wait
    for timeouts.
    
    gdb/testsuite/ChangeLog:
    
    	* gdb.base/async.exp (proc test_background): Add case
    	for asynchronous execution not supported.

Diff:
---
 gdb/testsuite/ChangeLog          | 5 +++++
 gdb/testsuite/gdb.base/async.exp | 9 ++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index e4b396f..a367451 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-12-09  Kevin Buettner  <kevinb@redhat.com>
+
+	* gdb.base/async.exp (proc test_background): Add case for
+	asynchronous execution not supported.
+
 2015-12-09  Luis Machado  <lgustavo@codesourcery.com>
 
 	* gdb.mi/mi-var-display.exp: Add new checks for the zero-hexadecimal
diff --git a/gdb/testsuite/gdb.base/async.exp b/gdb/testsuite/gdb.base/async.exp
index 2d3fb73..6546bbc 100644
--- a/gdb/testsuite/gdb.base/async.exp
+++ b/gdb/testsuite/gdb.base/async.exp
@@ -57,17 +57,24 @@ proc test_background {command before_prompt after_prompt {message ""}} {
     gdb_expect {
 	-re "^$command\r\n${before_prompt}${gdb_prompt}${after_prompt}completed\.\r\n" {
 	    pass "$message"
+	    return 0
 	}
 	-re "$gdb_prompt.*completed\.\r\n" {
 	    fail "$message"
 	}
+	-re ".*Asynchronous execution not supported on this target\..*" {
+	    unsupported "Asynchronous execution not supported: $message"
+	}
 	timeout  {
 	    fail "$message (timeout)"
 	}
     }
+    return -1
 }
 
-test_background "next&" "" ".*z = 9.*"
+if {[test_background "next&" "" ".*z = 9.*"] < 0} {
+    return
+}
 
 test_background "step&" "" ".*y = foo \\(\\).*" "step& #1"