[gdb] Add maint selftest -verbose option

The print_one_insn selftest in gdb/disasm-selftests.c contains:
...
  /* If you want to see the disassembled instruction printed to gdb_stdout,
     set verbose to true.  */
  static const bool verbose = false;
...

Make this parameter available in the maint selftest command using a new option
-verbose, such that we can do:
...
(gdb) maint selftest -verbose print_one_insn
...

Tested on x86_64-linux.

2 files changed, 20 insertions, 2 deletions

diff --git a/gdbsupport/selftest.cc b/gdbsupport/selftest.cc
index 55f530a..589ef1e 100644
--- a/gdbsupport/selftest.cc
+++ b/gdbsupport/selftest.cc
@@ -70,10 +70,23 @@ register_test (const std::string &name,
 
 /* See selftest.h.  */
 
+static bool run_verbose_ = false;
+
+/* See selftest.h.  */
+
+bool
+run_verbose ()
+{
+  return run_verbose_;
+}
+
+/* See selftest.h.  */
+
 void
-run_tests (gdb::array_view<const char *const> filters)
+run_tests (gdb::array_view<const char *const> filters, bool verbose)
 {
   int ran = 0, failed = 0;
+  run_verbose_ = verbose;
 
   for (const auto &pair : tests)
     {
diff --git a/gdbsupport/selftest.h b/gdbsupport/selftest.h
index b75e01e..d76fc4b 100644
--- a/gdbsupport/selftest.h
+++ b/gdbsupport/selftest.h
@@ -37,6 +37,10 @@ struct selftest
   virtual void operator() () const = 0;
 };
 
+/* True if selftest should run verbosely.  */
+
+extern bool run_verbose ();
+
 /* Register a new self-test.  */
 
 extern void register_test (const std::string &name, selftest *test);
@@ -52,7 +56,8 @@ extern void register_test (const std::string &name,
    If FILTERS is not empty, only run tests with names containing one of the
    element of FILTERS.  */
 
-extern void run_tests (gdb::array_view<const char *const> filters);
+extern void run_tests (gdb::array_view<const char *const> filters,
+		       bool verbose = false);
 
 /* Reset GDB or GDBserver's internal state.  */
 extern void reset ();