amd64 - function returning record with field straddling 2 registers

gdb/ChangeLog:

        From Paul Hilfinger  <hilfinger@adacore.com>
        * amd64-tdep.c (amd_classify_aggregate): Handle the case of
        a record of length <= 16 in which a field straddles the two
        eightbytes.

gdb/testsuite/ChangeLog:

        * gdb.ada/rec_return: New testcase.

5 files changed, 129 insertions, 0 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 99c2134..d92ded2 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,5 +1,9 @@
 2010-01-29  Joel Brobecker  <brobecker@adacore.com>
 
+	* gdb.ada/rec_return: New testcase.
+
+2010-01-29  Joel Brobecker  <brobecker@adacore.com>
+
 	* gdb.ada/call_pn: New testcase.
 
 2010-01-28  Daniel Jacobowitz  <dan@codesourcery.com>
diff --git a/gdb/testsuite/gdb.ada/rec_return.exp b/gdb/testsuite/gdb.ada/rec_return.exp
new file mode 100644
index 0000000..8d7035c
--- /dev/null
+++ b/gdb/testsuite/gdb.ada/rec_return.exp
@@ -0,0 +1,46 @@
+# Copyright 2010 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 $tracelevel
+}
+
+load_lib "ada.exp"
+
+set testdir "rec_return"
+set testfile "${testdir}/foo"
+set srcfile ${srcdir}/${subdir}/${testfile}.adb
+set binfile ${objdir}/${subdir}/${testfile}
+
+file mkdir ${objdir}/${subdir}/${testdir}
+if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug ]] != "" } {
+  return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+set bp_location [gdb_get_line_number "STOP" ${testdir}/foo.adb]
+if ![runto "foo.adb:$bp_location" ] then {
+  perror "Couldn't run ${testfile}"
+  return
+}
+
+gdb_test "print bar" \
+         "= \\(x => 42, s => \"ABCDEFGH\"\\)" \
+         "print bar"
+
diff --git a/gdb/testsuite/gdb.ada/rec_return/foo.adb b/gdb/testsuite/gdb.ada/rec_return/foo.adb
new file mode 100644
index 0000000..a32d817
--- /dev/null
+++ b/gdb/testsuite/gdb.ada/rec_return/foo.adb
@@ -0,0 +1,24 @@
+--  Copyright 2010 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/>.
+
+with Pck; use Pck;
+
+procedure Foo is
+   Q: Rec;
+begin
+   Q := Bar; -- STOP HERE
+   Do_Nothing (Q'Address);
+end Foo;
+
diff --git a/gdb/testsuite/gdb.ada/rec_return/pck.adb b/gdb/testsuite/gdb.ada/rec_return/pck.adb
new file mode 100644
index 0000000..fb42164
--- /dev/null
+++ b/gdb/testsuite/gdb.ada/rec_return/pck.adb
@@ -0,0 +1,27 @@
+--  Copyright 2010 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/>.
+
+package body Pck is
+   function Bar return Rec is
+   begin
+      return (X => 42, S => "ABCDEFGH");
+   end Bar;
+
+   procedure Do_Nothing (A : System.Address) is
+   begin
+      null;
+   end Do_Nothing;
+end Pck;
+
diff --git a/gdb/testsuite/gdb.ada/rec_return/pck.ads b/gdb/testsuite/gdb.ada/rec_return/pck.ads
new file mode 100644
index 0000000..a890f4a1
--- /dev/null
+++ b/gdb/testsuite/gdb.ada/rec_return/pck.ads
@@ -0,0 +1,28 @@
+--  Copyright 2010 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/>.
+
+with System;
+
+package Pck is
+   type Rec is record
+      X: Integer;
+      S: String (1..8);
+   end record;
+
+   function Bar return Rec;
+   procedure Do_Nothing (A : System.Address);
+
+end Pck;
+