More gdbserver test fixes, from #214909 c 101:
fix mcsig(no)pass on arm Ubuntu10, arm thumb internal doc, improve
simulate_control_c

* new file docs/internals/arm_thumb_notes_gdbserver.txt
  documentation about the subtilities of the thumb bit handling in gdbsrv.
* made the SIGFPE backtrace filtering less dependent on gdb/os/libc/...
* improved simulate_control_c : runs faster/less dependent on timeout value


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11791 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/gdbserver_tests/mcinfcallWSRU.stdinB.gdb b/gdbserver_tests/mcinfcallWSRU.stdinB.gdb
index 4ccbcdc..fdedd8a 100644
--- a/gdbserver_tests/mcinfcallWSRU.stdinB.gdb
+++ b/gdbserver_tests/mcinfcallWSRU.stdinB.gdb
@@ -13,7 +13,7 @@
 # Here the 4 threads have been started.
 # We will interrupt in a few seconds (be sure all tasks are in Runnable/Yielding state
 # or in WaitSys state.
-shell ./simulate_control_c --vgdb-prefix=./vgdb-prefix-mcinfcallWSRU 10
+shell ./simulate_control_c --vgdb-prefix=./vgdb-prefix-mcinfcallWSRU 1 grep main mcinfcallWSRU.stderr.out
 #
 continue
 #