9 files changed, 201 insertions, 1 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 337b9bf..367572a 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2015-08-12  Joel Brobecker  <brobecker@adacore.com>
+
+	* amd64-tdep.c (amd64_displaced_step_fixup): Fix the mask used to
+	compute RETADDR.
+
 2015-08-12  Keith Seitz  <keiths@redhat.com>
 
 	* python/python.c (gdbpy_decode_line): Initialize `location' to NULL
diff --git a/gdb/amd64-tdep.c b/gdb/amd64-tdep.c
index 5e63b5e..a672cde 100644
--- a/gdb/amd64-tdep.c
+++ b/gdb/amd64-tdep.c
@@ -1662,7 +1662,7 @@ amd64_displaced_step_fixup (struct gdbarch *gdbarch,
 
       regcache_cooked_read_unsigned (regs, AMD64_RSP_REGNUM, &rsp);
       retaddr = read_memory_unsigned_integer (rsp, retaddr_len, byte_order);
-      retaddr = (retaddr - insn_offset) & 0xffffffffUL;
+      retaddr = (retaddr - insn_offset) & 0xffffffffffffffffULL;
       write_memory_unsigned_integer (rsp, retaddr_len, byte_order, retaddr);
 
       if (debug_displaced)
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 916da1f..738c927 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2015-08-12  Joel Brobecker  <brobecker@adacore.com>
+
+	* gdb.base/dso2dso-dso2.c, gdb.base/dso2dso-dso2.h,
+	gdb.base/dso2dso-dso1.c, gdb.base/dso2dso-dso1.h, gdb.base/dso2dso.c,
+	gdb.base/dso2dso.exp: New files.
+
 2015-08-12  Sergio Durigan Junior  <sergiodj@redhat.com>
 	    Pedro Alves  <palves@redhat.com>
 	    Keith Seitz  <keiths@redhat.com>
diff --git a/gdb/testsuite/gdb.base/dso2dso-dso1.c b/gdb/testsuite/gdb.base/dso2dso-dso1.c
new file mode 100644
index 0000000..a360e20
--- /dev/null
+++ b/gdb/testsuite/gdb.base/dso2dso-dso1.c
@@ -0,0 +1,26 @@
+/* Copyright 2015 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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/>.  */
+
+#include "dso2dso-dso1.h"
+#include "dso2dso-dso2.h"
+
+int
+sub1 (void)
+{
+  sub2 ();  /* STOP HERE.  */
+  return 5;
+}
diff --git a/gdb/testsuite/gdb.base/dso2dso-dso1.h b/gdb/testsuite/gdb.base/dso2dso-dso1.h
new file mode 100644
index 0000000..2423360
--- /dev/null
+++ b/gdb/testsuite/gdb.base/dso2dso-dso1.h
@@ -0,0 +1,23 @@
+/* Copyright 2015 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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/>.  */
+
+#ifndef DSO2DSO_DSO1_H
+#define DSO2DSO_DSO1_H
+
+extern int sub1 (void);
+
+#endif
diff --git a/gdb/testsuite/gdb.base/dso2dso-dso2.c b/gdb/testsuite/gdb.base/dso2dso-dso2.c
new file mode 100644
index 0000000..14de6a8
--- /dev/null
+++ b/gdb/testsuite/gdb.base/dso2dso-dso2.c
@@ -0,0 +1,24 @@
+/* Copyright 2015 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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/>.  */
+
+#include "dso2dso-dso2.h"
+
+void
+sub2 (void)
+{
+  /* Do nothing.  */
+}
diff --git a/gdb/testsuite/gdb.base/dso2dso-dso2.h b/gdb/testsuite/gdb.base/dso2dso-dso2.h
new file mode 100644
index 0000000..e33ca0a
--- /dev/null
+++ b/gdb/testsuite/gdb.base/dso2dso-dso2.h
@@ -0,0 +1,23 @@
+/* Copyright 2015 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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/>.  */
+
+#ifndef DSO2DSO_DSO2_H
+#define DSO2DSO_DSO2_H
+
+extern void sub2 (void);
+
+#endif
diff --git a/gdb/testsuite/gdb.base/dso2dso.c b/gdb/testsuite/gdb.base/dso2dso.c
new file mode 100644
index 0000000..563bd96
--- /dev/null
+++ b/gdb/testsuite/gdb.base/dso2dso.c
@@ -0,0 +1,25 @@
+/* Copyright 2015 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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/>.  */
+
+#include "dso2dso-dso1.h"
+
+int
+main (void)
+{
+  int ignored = sub1 ();
+  return 0;
+}
diff --git a/gdb/testsuite/gdb.base/dso2dso.exp b/gdb/testsuite/gdb.base/dso2dso.exp
new file mode 100644
index 0000000..b604012
--- /dev/null
+++ b/gdb/testsuite/gdb.base/dso2dso.exp
@@ -0,0 +1,68 @@
+# Copyright 2015 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 { [skip_shlib_tests] } {
+    return 0
+}
+
+standard_testfile
+
+set output_dir [standard_output_file {}]
+
+set libdso2 $testfile-dso2
+set srcfile_libdso2 $srcdir/$subdir/$libdso2.c
+set binfile_libdso2 [standard_output_file $libdso2.so]
+
+set libdso1 $testfile-dso1
+set srcfile_libdso1 $srcdir/$subdir/$libdso1.c
+set binfile_libdso1 [standard_output_file $libdso1.so]
+
+if { [gdb_compile_shlib $srcfile_libdso2 $binfile_libdso2 \
+	[list debug additional_flags=-fPIC]] != "" } {
+  untested "Could not compile $binfile_libdso2."
+  return -1
+}
+
+if { [gdb_compile_shlib $srcfile_libdso1 $binfile_libdso1 \
+	[list debug additional_flags=-fPIC]] != "" } {
+  untested "Could not compile $binfile_libdso1."
+  return -1
+}
+
+if { [gdb_compile $srcdir/$subdir/$srcfile $binfile executable \
+	[list debug shlib=$binfile_libdso2 shlib=$binfile_libdso1]] != "" } {
+  return -1
+}
+
+clean_restart $binfile
+gdb_load_shlibs $binfile_libdso2 $binfile_libdso1
+
+if { ![runto_main] } {
+  return -1
+}
+
+# Verify that we can "next" over the call to sub2 (provided by
+# libdso2) make from sub1 (provided by libdso1), and land at
+# the expected location.
+
+set bp_location [gdb_get_line_number "STOP HERE" $srcfile_libdso1]
+gdb_breakpoint ${srcfile_libdso1}:${bp_location}
+
+gdb_continue_to_breakpoint "at call to sub2" \
+    ".*sub2 ().*"
+
+gdb_test "next" \
+    ".*return 5;.*" \
+    "next over call to sub2"