Add Python rbreak command.

gdb/Changelog

2017-11-16  Phil Muldoon  <pmuldoon@redhat.com>

	* python/python.c (gdbpy_rbreak): New function.
        * NEWS: Document Python rbreak feature.

testsuite/Changelog

2017-11-16  Phil Muldoon  <pmuldoon@redhat.com>

	* gdb.python/py-rbreak.exp: New file.
	* gdb.python/py-rbreak.c: New file.
	* gdb.python/py-rbreak-func2.c: New file.

doc/Changelog

2017-11-16  Phil Muldoon  <pmuldoon@redhat.com>

	* python.texi (Basic Python): Add rbreak documentation.

gdb/testsuite/gdb.python/py-rbreak-func2.c

@@ -0,0 +1,34 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2017 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+int
+efunc1 ()
+{
+  return 1;
+}
+
+int
+efunc2 ()
+{
+  return 2;
+}
+
+int
+efunc3 ()
+{
+  return 3;
+}

gdb/testsuite/gdb.python/py-rbreak.c

@@ -0,0 +1,70 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2013-2017 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+int
+func1 ()
+{
+  return 1;
+}
+
+int
+func2 ()
+{
+  return 2;
+}
+
+int
+func3 ()
+{
+  return 3;
+}
+
+int
+func4 ()
+{
+  return 4;
+}
+
+int
+func5 ()
+{
+  return 5;
+}
+
+void
+func6 ()
+{
+  return;
+}
+
+void
+outside_scope ()
+{
+  return;
+}
+
+int
+main()
+{
+  func1 (); /* Break func1.  */
+  func2 ();
+  func3 ();
+  func4 ();
+  func5 ();
+  func6 ();
+  outside_scope ();
+}

gdb/testsuite/gdb.python/py-rbreak.exp

@@ -0,0 +1,61 @@
+# Copyright (C) 2017 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# This file is part of the GDB testsuite.  It tests the mechanism
+# exposing values to Python.
+
+load_lib gdb-python.exp
+
+standard_testfile py-rbreak.c py-rbreak-func2.c
+
+if {[prepare_for_testing "failed to prepare" ${testfile} [list $srcfile $srcfile2]] } {
+    return 1
+}
+
+# Skip all tests if Python scripting is not enabled.
+if { [skip_python_tests] } { continue }
+
+if ![runto_main] then {
+    fail "can't run to main"
+    return 0
+}
+
+gdb_py_test_silent_cmd "py sl = gdb.rbreak(\"\",minsyms=False)" \
+    "get all function breakpoints" 0
+gdb_test "py print(len(sl))" "11" \
+    "check number of returned breakpoints is 11"
+gdb_py_test_silent_cmd "py sl = gdb.rbreak(\"main\.\*\",minsyms=False)" \
+    "get main function breakpoint" 0
+gdb_test "py print(len(sl))" "1" \
+    "check number of returned breakpoints is 1"
+gdb_py_test_silent_cmd "py sl = gdb.rbreak(\"func\.\*\",minsyms=False,throttle=10)" \
+    "get functions matching func.*" 0
+gdb_test "py print(len(sl))" "9" \
+    "check number of returned breakpoints is 9"
+gdb_test "py gdb.rbreak(\"func\.\*\",minsyms=False,throttle=5)" \
+    "Number of breakpoints exceeds throttled maximum.*" \
+    "check throttle errors on too many breakpoints"
+gdb_py_test_silent_cmd "py sl = gdb.rbreak(\"func1\",minsyms=True)" \
+    "including minimal symbols, get functions matching func.*" 0
+gdb_test "py print(len(sl))" "2" \
+    "check number of returned breakpoints is 2"
+gdb_py_test_silent_cmd "python sym = gdb.lookup_symbol(\"efunc1\")" \
+    "find a symbol in objfile" 1
+gdb_py_test_silent_cmd "python symtab = sym\[0\].symtab" \
+    "get backing symbol table" 1
+gdb_py_test_silent_cmd "py sl = gdb.rbreak(\"func\.\*\",minsyms=False,throttle=10,symtabs=\[symtab\])" \
+    "get functions matching func.* in one symtab only" 0
+gdb_test "py print(len(sl))" "3" \
+    "check number of returned breakpoints is 3"