1 files changed, 79 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.arch/ppc-dfp.exp b/gdb/testsuite/gdb.arch/ppc-dfp.exp
new file mode 100644
index 0000000..3d87998
--- /dev/null
+++ b/gdb/testsuite/gdb.arch/ppc-dfp.exp
@@ -0,0 +1,79 @@
+# Copyright (C) 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/>.
+#
+
+# Tests for Powerpc Decimal Floating Point registers setting and fetching
+
+if $tracelevel then {
+    strace $tracelevel
+}
+
+if ![istarget "powerpc*"] then {
+    verbose "Skipping powerpc decimal floating point register tests."
+    return
+}
+
+set testfile "ppc-dfp"
+set binfile ${objdir}/${subdir}/${testfile}
+set srcfile ${testfile}.c
+
+if [get_compiler_info $binfile] {
+    warning "get_compiler failed"
+    return -1
+}
+
+if ![test_compiler_info gcc*] {
+    # We use GCC's extended asm syntax
+    warning "unknown compiler"
+    return -1
+}
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } {
+    unsupported "This machine doesn't support Decimal Floating Point."
+    return -1
+}
+
+# Start with a fresh gdb.
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+gdb_breakpoint [gdb_get_line_number "Set DFP rounding mode."]
+
+gdb_run_cmd
+
+# When the prompt comes back we'll be at the Set DFP rounding mode breakpoint.
+# Unless the program bails out after checking AT_HWCAP.
+gdb_expect {
+  -re "Program exited with code 01.\[\r\n\]+$gdb_prompt $" {
+    unsupported "This machine doesn't support Decimal Floating Point."
+    return -1
+  }
+
+  -re ".*$gdb_prompt $" {}
+}
+
+# First, verify if FPSCR is all zeroes.
+gdb_test "print \$fpscr" " = 0" "FPSCR is all zeroes"
+
+# Step over "set rounding mode" instruction.
+gdb_test "next" "" ""
+
+# Verify that the following bits are set (See Power ISA for details):
+#
+# 29:31 - DFP Rounding Control
+gdb_test "print/t \$fpscr" " = 10100000000000000000000000000000000" "FPSCR for round to nearest, ties toward zero rounding mode"