projects / binutils.git / blame
| Commit | Line | Data |
|---|---|---|
| 69abc51c TJB |
1 | # Copyright (C) 2008 Free Software Foundation, Inc. |
| 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 | ||
| 19 | if $tracelevel then { | |
| 20 | strace $tracelevel | |
| 21 | } | |
| 22 | ||
| 23 | if ![istarget "powerpc*"] then { | |
| 24 | verbose "Skipping powerpc decimal floating point register tests." | |
| 25 | return | |
| 26 | } | |
| 27 | ||
| 28 | set testfile "ppc-dfp" | |
| 29 | set binfile ${objdir}/${subdir}/${testfile} | |
| 30 | set srcfile ${testfile}.c | |
| 31 | ||
| 32 | if [get_compiler_info $binfile] { | |
| 33 | warning "get_compiler failed" | |
| 34 | return -1 | |
| 35 | } | |
| 36 | ||
| 37 | if ![test_compiler_info gcc*] { | |
| 38 | # We use GCC's extended asm syntax | |
| 39 | warning "unknown compiler" | |
| 40 | return -1 | |
| 41 | } | |
| 42 | ||
| 43 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } { | |
| 44 | unsupported "This machine doesn't support Decimal Floating Point." | |
| 45 | return -1 | |
| 46 | } | |
| 47 | ||
| 48 | # Start with a fresh gdb. | |
| 49 | ||
| 50 | gdb_exit | |
| 51 | gdb_start | |
| 52 | gdb_reinitialize_dir $srcdir/$subdir | |
| 53 | gdb_load ${binfile} | |
| 54 | ||
| 55 | gdb_breakpoint [gdb_get_line_number "Set DFP rounding mode."] | |
| 56 | ||
| 57 | gdb_run_cmd | |
| 58 | ||
| 59 | # When the prompt comes back we'll be at the Set DFP rounding mode breakpoint. | |
| 60 | # Unless the program bails out after checking AT_HWCAP. | |
| 61 | gdb_expect { | |
| 62 | -re "Program exited with code 01.\[\r\n\]+$gdb_prompt $" { | |
| 63 | unsupported "This machine doesn't support Decimal Floating Point." | |
| 64 | return -1 | |
| 65 | } | |
| 66 | ||
| 67 | -re ".*$gdb_prompt $" {} | |
| 68 | } | |
| 69 | ||
| 70 | # First, verify if FPSCR is all zeroes. | |
| 71 | gdb_test "print \$fpscr" " = 0" "FPSCR is all zeroes" | |
| 72 | ||
| 73 | # Step over "set rounding mode" instruction. | |
| 74 | gdb_test "next" "" "" | |
| 75 | ||
| 76 | # Verify that the following bits are set (See Power ISA for details): | |
| 77 | # | |
| 78 | # 29:31 - DFP Rounding Control | |
| 79 | gdb_test "print/t \$fpscr" " = 10100000000000000000000000000000000" "FPSCR for round to nearest, ties toward zero rounding mode" |