[committed][gdb/testsuite] Fix timeouts with -readnow

[Tom de Vries]

Hi,

With target board readnow, I run into timeouts for test cases
gdb.base/multi-forks.exp and gdb.threads/fork-plus-threads.exp.

Fix these using with_timeout_factor.

Tested on x86_64-linux.

Committed to trunk.

Thanks,
- Tom

[gdb/testsuite] Fix timeouts with -readnow

gdb/testsuite/ChangeLog:

2020-04-28  Tom de Vries  <tdevries@suse.de>

	* gdb.base/multi-forks.exp: Use with_timeout_factor.
	* gdb.threads/fork-plus-threads.exp: Same.

---
 gdb/testsuite/gdb.base/multi-forks.exp          |  5 ++-
 gdb/testsuite/gdb.threads/fork-plus-threads.exp | 41 +++++++++++++------------
 2 files changed, 26 insertions(+), 20 deletions(-)

diff --git a/gdb/testsuite/gdb.base/multi-forks.exp b/gdb/testsuite/gdb.base/multi-forks.exp
index 59d953b04d6..0d75d0c153c 100644
--- a/gdb/testsuite/gdb.base/multi-forks.exp
+++ b/gdb/testsuite/gdb.base/multi-forks.exp
@@ -149,7 +149,10 @@ gdb_test_no_output "set detach off" "set detach off"
 #
 
 for {set i 1} {$i <= 15} {incr i} {
-  gdb_test "continue" "Breakpoint .* main .*exit.*" "run to exit $i"
+  # Fix timeouts with -readnow.
+  with_timeout_factor 3 {
+    gdb_test "continue" "Breakpoint .* main .*exit.*" "run to exit $i"
+  }
   gdb_test "info inferior" " 2 .* 3 .* 4 .* 5 .*" "info inferior $i"
   gdb_test "inferior $i + 1" "(_dl_sysinfo_int80|fork|__kernel_(v|)syscall).*" \
       "inferior $i"
diff --git a/gdb/testsuite/gdb.threads/fork-plus-threads.exp b/gdb/testsuite/gdb.threads/fork-plus-threads.exp
index 8d36b96810b..91453329c26 100644
--- a/gdb/testsuite/gdb.threads/fork-plus-threads.exp
+++ b/gdb/testsuite/gdb.threads/fork-plus-threads.exp
@@ -78,25 +78,28 @@ proc do_test { detach_on_fork } {
     set saw_thread_stopped 0
 
     set test "inferior 1 exited"
-    gdb_test_multiple "" $test {
-	-re "Cannot remove breakpoints" {
-	    set saw_cannot_remove_breakpoints 1
-	    exp_continue
-	}
-	-re "Thread \[^\r\n\]+ stopped\\." {
-	    set saw_thread_stopped 1
-	    exp_continue
-	}
-	-re "Thread \[^\r\n\]+ exited" {
-	    # Avoid timeout with check-read1
-	    exp_continue
-	}
-	-re "New Thread \[^\r\n\]+" {
-	    # Avoid timeout with check-read1
-	    exp_continue
-	}
-	-re "Inferior 1 \(\[^\r\n\]+\) exited normally" {
-	    pass $test
+    # Fix timeouts with -readnow.
+    with_timeout_factor 3 {
+	gdb_test_multiple "" $test {
+	    -re "Cannot remove breakpoints" {
+		set saw_cannot_remove_breakpoints 1
+		exp_continue
+	    }
+	    -re "Thread \[^\r\n\]+ stopped\\." {
+		set saw_thread_stopped 1
+		exp_continue
+	    }
+	    -re "Thread \[^\r\n\]+ exited" {
+		# Avoid timeout with check-read1
+		exp_continue
+	    }
+	    -re "New Thread \[^\r\n\]+" {
+		# Avoid timeout with check-read1
+		exp_continue
+	    }
+	    -re "Inferior 1 \(\[^\r\n\]+\) exited normally" {
+		pass $test
+	    }
 	}
     }