1# Copyright 2009-2020 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# This file is part of the gdb testsuite. 17 18 19if ![istarget "i?86-*linux*"] then { 20 verbose "Skipping i387 reverse float tests." 21 return 22} 23 24standard_testfile 25 26# some targets have leading underscores on assembly symbols. 27set additional_flags [gdb_target_symbol_prefix_flags] 28 29if {[prepare_for_testing "failed to prepare" $testfile $srcfile \ 30 [list debug $additional_flags]]} { 31 return -1 32} 33 34runto main 35 36# Record to end of main 37 38set location [gdb_get_line_number "END I387-FLOAT-REVERSE"] 39gdb_test_no_output "record" "Turn on process record" 40# This can take awhile. 41set oldtimeout $timeout 42set timeout [expr $oldtimeout + 120] 43gdb_test "until $location" ".*$srcfile:$location.*" \ 44 "record to end of main" 45set timeout $oldtimeout 46 47# Now rewind to beginning so we can begin testing. 48 49set location [gdb_get_line_number "BEGIN I387-FLOAT-REVERSE"] 50gdb_test_no_output "set exec-dir reverse" "set reverse direction" 51gdb_test "until $location" ".*$srcfile:$location.*" \ 52 "rewind to beginning of main" 53gdb_test_no_output "set exec-dir forward" "set forward direction" 54 55# Test FPU env particularly ftag and fstatus reigters. 56 57set location [gdb_get_line_number "TEST ENV"] 58gdb_test "until $location" ".*$srcfile:$location.*asm.*nop.*" \ 59 "begin testing fpu env" 60 61gdb_test "n" "asm.*fsave.*" "save FPU env in memory" 62gdb_test "n" "asm.*frstor.*" "restore FPU env" 63gdb_test "n" "asm.*fstsw.*" "store status word in EAX" 64gdb_test "n" "asm.*fld1.*" "push st0" 65 66gdb_test "info register eax" "eax *0x8040000.*\[ \t\]+.*" "verify eax == 0x8040000" 67gdb_test "info register fstat" "fstat *0.*\[ \t\]+.*" "verify fstat == 0" 68gdb_test "info register ftag" "ftag *0xffff.*\[ \t\]+.*" "verify ftag == 0xffff" 69 70gdb_test "stepi" "asm.*fldl2t.*" "push st0" 71gdb_test "info register fstat" "fstat *0x3800.*\[ \t\]+.*" "verify fstat == 0x3800" 72gdb_test "info register ftag" "ftag *0x3fff.*\[ \t\]+.*" "verify ftag == 0x3fff" 73 74gdb_test "stepi" "asm.*fldl2e.*" "push st0" 75gdb_test "info register fstat" "fstat *0x3000.*\[ \t\]+.*" "verify fstat == 0x3000" 76gdb_test "info register ftag" "ftag *0xfff.*\[ \t\]+.*" "verify ftag == 0xfff" 77 78gdb_test "stepi" "asm.*fldpi.*" "push st0" 79gdb_test "info register fstat" "fstat *0x2800.*\[ \t\]+.*" "verify fstat == 0x2800" 80gdb_test "info register ftag" "ftag *0x3ff.*\[ \t\]+.*" "verify ftag == 0x3ff" 81 82gdb_test "stepi" "asm.*fldlg2.*" "push st0" 83gdb_test "info register fstat" "fstat *0x2000.*\[ \t\]+.*" "verify fstat == 0x2000" 84gdb_test "info register ftag" "ftag *0xff.*\[ \t\]+.*" "verify ftag == 0xff" 85 86gdb_test "stepi" "asm.*fldln2.*" "push st0" 87gdb_test "info register fstat" "fstat *0x1800.*\[ \t\]+.*" "verify fstat == 0x1800" 88gdb_test "info register ftag" "ftag *0x3f.*\[ \t\]+.*" "verify ftag == 0x3f" 89 90gdb_test "stepi" "asm.*fldz.*" "push st0" 91gdb_test "info register fstat" "fstat *0x1000.*\[ \t\]+.*" "verify fstat == 0x1000" 92gdb_test "info register ftag" "ftag *0xf.*\[ \t\]+.*" "verify ftag == 0xf" 93 94gdb_test "stepi" "asm.*nop.*" "push st0" 95gdb_test "info register fstat" "fstat *0x800.*\[ \t\]+.*" "verify fstat == 0x800" 96gdb_test "info register ftag" "ftag *0x7.*\[ \t\]+.*" "verify ftag == 0x7" 97 98 99# move backward and ehck we get the same registers back. 100 101gdb_test "reverse-stepi" "asm.*fldz.*" "push st0" 102gdb_test "info register fstat" "fstat *0x1000.*\[ \t\]+.*" "verify fstat == 0x1000" 103gdb_test "info register ftag" "ftag *0xf.*\[ \t\]+.*" "verify ftag == 0xf" 104 105gdb_test "reverse-stepi" "asm.*fldln2.*" "push st0" 106gdb_test "info register fstat" "fstat *0x1800.*\[ \t\]+.*" "verify fstat == 0x1800" 107gdb_test "info register ftag" "ftag *0x3f.*\[ \t\]+.*" "verify ftag == 0x3f" 108 109gdb_test "reverse-stepi" "asm.*fldlg2.*" "push st0" 110gdb_test "info register fstat" "fstat *0x2000.*\[ \t\]+.*" "verify fstat == 0x2000" 111gdb_test "info register ftag" "ftag *0xff.*\[ \t\]+.*" "verify ftag == 0xff" 112 113gdb_test "reverse-stepi" "asm.*fldpi.*" "push st0" 114gdb_test "info register fstat" "fstat *0x2800.*\[ \t\]+.*" "verify fstat == 0x2800" 115gdb_test "info register ftag" "ftag *0x3ff.*\[ \t\]+.*" "verify ftag == 0x3ff" 116 117gdb_test "reverse-stepi" "asm.*fldl2e.*" "push st0" 118gdb_test "info register fstat" "fstat *0x3000.*\[ \t\]+.*" "verify fstat == 0x3000" 119gdb_test "info register ftag" "ftag *0xfff.*\[ \t\]+.*" "verify ftag == 0xfff" 120 121gdb_test "reverse-stepi" "asm.*fldl2t.*" "push st0" 122gdb_test "info register fstat" "fstat *0x3800.*\[ \t\]+.*" "verify fstat == 0x3800" 123gdb_test "info register ftag" "ftag *0x3fff.*\[ \t\]+.*" "verify ftag == 0x3fff" 124 125gdb_test "reverse-stepi" "asm.*fld1.*" "push st0" 126gdb_test "info register fstat" "fstat *0.*\[ \t\]+.*" "verify fstat == 0" 127gdb_test "info register ftag" "ftag *0xffff.*\[ \t\]+.*" "verify ftag == 0xffff" 128 129 130 131 132 133 134