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28e7fd62 | 1 | # Copyright (C) 2008-2013 Free Software Foundation, Inc. |
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2 | # |
3 | # This program is free software; you can redistribute it and/or modify | |
4 | # it under the terms of the GNU General Public License as published by | |
5 | # the Free Software Foundation; either version 3 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
8 | # This program is distributed in the hope that it will be useful, | |
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | # GNU General Public License for more details. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | # | |
16 | ||
17 | # Tests for Powerpc Decimal Floating Point registers setting and fetching | |
18 | ||
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19 | if ![istarget "powerpc*"] then { |
20 | verbose "Skipping powerpc decimal floating point register tests." | |
21 | return | |
22 | } | |
23 | ||
24 | set testfile "ppc-dfp" | |
25 | set binfile ${objdir}/${subdir}/${testfile} | |
26 | set srcfile ${testfile}.c | |
27 | ||
4c93b1db | 28 | if [get_compiler_info] { |
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29 | warning "get_compiler failed" |
30 | return -1 | |
31 | } | |
32 | ||
33 | if ![test_compiler_info gcc*] { | |
34 | # We use GCC's extended asm syntax | |
35 | warning "unknown compiler" | |
36 | return -1 | |
37 | } | |
38 | ||
39 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } { | |
40 | unsupported "This machine doesn't support Decimal Floating Point." | |
41 | return -1 | |
42 | } | |
43 | ||
44 | # Start with a fresh gdb. | |
45 | ||
46 | gdb_exit | |
47 | gdb_start | |
48 | gdb_reinitialize_dir $srcdir/$subdir | |
49 | gdb_load ${binfile} | |
50 | ||
51 | gdb_breakpoint [gdb_get_line_number "Set DFP rounding mode."] | |
52 | ||
53 | gdb_run_cmd | |
54 | ||
55 | # When the prompt comes back we'll be at the Set DFP rounding mode breakpoint. | |
56 | # Unless the program bails out after checking AT_HWCAP. | |
57 | gdb_expect { | |
fda326dd | 58 | -re "$inferior_exited_re with code 01.\[\r\n\]+$gdb_prompt $" { |
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59 | unsupported "This machine doesn't support Decimal Floating Point." |
60 | return -1 | |
61 | } | |
62 | ||
63 | -re ".*$gdb_prompt $" {} | |
64 | } | |
65 | ||
66 | # First, verify if FPSCR is all zeroes. | |
67 | gdb_test "print \$fpscr" " = 0" "FPSCR is all zeroes" | |
68 | ||
69 | # Step over "set rounding mode" instruction. | |
70 | gdb_test "next" "" "" | |
71 | ||
72 | # Verify that the following bits are set (See Power ISA for details): | |
73 | # | |
74 | # 29:31 - DFP Rounding Control | |
75 | gdb_test "print/t \$fpscr" " = 10100000000000000000000000000000000" "FPSCR for round to nearest, ties toward zero rounding mode" |