76 lines
2.2 KiB
Plaintext
76 lines
2.2 KiB
Plaintext
# Copyright (C) 2008-2014 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 ![istarget "powerpc*"] then {
|
|
verbose "Skipping powerpc decimal floating point register tests."
|
|
return
|
|
}
|
|
|
|
set testfile "ppc-dfp"
|
|
set binfile ${objdir}/${subdir}/${testfile}
|
|
set srcfile ${testfile}.c
|
|
|
|
if [get_compiler_info] {
|
|
warning "get_compiler failed"
|
|
return -1
|
|
}
|
|
|
|
if ![test_compiler_info gcc*] {
|
|
# We use GCC's extended asm syntax
|
|
warning "unknown compiler"
|
|
return -1
|
|
}
|
|
|
|
if { [gdb_compile "${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 ${binfile}
|
|
|
|
gdb_breakpoint [gdb_get_line_number "Set DFP rounding mode."]
|
|
|
|
gdb_run_cmd
|
|
|
|
# When the prompt comes back we'll be at the Set DFP rounding mode breakpoint.
|
|
# Unless the program bails out after checking AT_HWCAP.
|
|
gdb_expect {
|
|
-re "$inferior_exited_re 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"
|