gdb/

* inf-loop.c (inferior_event_handler): Also run the intermediate
	continuations in the INF_EXEC_COMPLETE case.

	gdb/testsuite/
	* gdb.base/step-break.exp, gdb.base/step-break.c: New files.

gdb/ChangeLog

@@ -1,3 +1,8 @@
+2008-04-17  Pedro Alves  <pedro@codesourcery.com>
+
+	* inf-loop.c (inferior_event_handler): Also run the intermediate
+	continuations in the INF_EXEC_COMPLETE case.
+
 2008-04-16  Tom Tromey  <tromey@redhat.com>
 
 	* cli/cli-decode.h (CMD_ASYNC_OK): New define.

gdb/inf-loop.c

@@ -91,6 +91,12 @@ inferior_event_handler (enum inferior_event_type event_type,
       was_sync = sync_execution;
       async_enable_stdin ();
 
+      /* If we were doing a multi-step (eg: step n, next n), but it
+	 got interrupted by a breakpoint, still do the pending
+	 continuations.  The continuation itself is responsible for
+	 distinguishing the cases.  */
+      do_all_intermediate_continuations ();
+
       do_all_continuations ();
 
       if (current_language != expected_language)

gdb/testsuite/ChangeLog

@@ -1,3 +1,7 @@
+2008-04-17  Pedro Alves  <pedro@codesourcery.com>
+
+	* gdb.base/step-break.exp, gdb.base/step-break.c: New files.
+
 2008-04-15  Aleksandar Ristovski  <aristovski@qnx.com>
 
 	* gdb.base/attach.exp (do_attach_tests): Matching pattern for

gdb/testsuite/gdb.base/step-break.c

@@ -0,0 +1,32 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2008 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
+main ()
+{
+    volatile int i = 1;
+
+    while (i > 0) /* place1 */
+      {
+	i++; /* place2 */
+	i++; /* place3, set breakpoint here  */
+      }
+
+    return 0;
+}

gdb/testsuite/gdb.base/step-break.exp

@@ -0,0 +1,57 @@
+# This testcase is part of GDB, the GNU debugger.
+
+# Copyright 2008 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/>.
+
+if $tracelevel then {
+    strace $tracelevel
+}
+
+set testfile step-break
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
+     untested step-break.exp
+     return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+if ![runto_main] then {
+   fail "Can't run to main"
+   return 0
+}
+
+set bp_location [gdb_get_line_number "set breakpoint here"]
+
+gdb_test "break $bp_location" \
+    "Breakpoint.*at.* file .*$srcfile, line $bp_location\\." \
+    "breakpoint line number"
+
+gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(\\) at .*$srcfile:$bp_location.*set breakpoint here.*" \
+    "run until breakpoint set at a line number"
+
+gdb_test "next 2" ".*place2.*" "next 2 (1)"
+gdb_test "next 2" ".*place3.*" "next 2 (2)"
+gdb_test "next 2" ".*place2.*" "next 2 (3)"
+gdb_test "next 2" ".*place3.*" "next 2 (4)"
+gdb_test "next 2" ".*place2.*" "next 2 (5)"
+gdb_test "next 2" ".*place3.*" "next 2 (6)"
+
+return 0