gdb/testsuite/gdb.reverse/i387-stack-reverse.exp

   1 # Copyright 2009-2021 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
  19 if ![istarget "i?86-*linux*"] then {
  20     verbose "Skipping i387 reverse float tests."
  21     return
  22 }
  23
  24 standard_testfile
  25
  26 # some targets have leading underscores on assembly symbols.
  27 set additional_flags [gdb_target_symbol_prefix_flags]
  28
  29 if {[prepare_for_testing "failed to prepare" $testfile $srcfile \
  30          [list debug $additional_flags]]} {
  31     return -1
  32 }
  33
  34 runto_main
  35
  36 # Record to end of main
  37
  38 set location [gdb_get_line_number "END I387-FLOAT-REVERSE"]
  39 gdb_test_no_output "record" "turn on process record"
  40 gdb_test "until $location" ".*$srcfile:$location.*" \
  41     "record to end of main"
  42
  43 # Now rewind to beginning so we can begin testing.
  44
  45 set location [gdb_get_line_number "BEGIN I387-FLOAT-REVERSE"]
  46 gdb_test_no_output "set exec-dir reverse" "set reverse direction"
  47 gdb_test "until $location" ".*$srcfile:$location.*" \
  48     "rewind to beginning of main"
  49 gdb_test_no_output "set exec-dir forward" "set forward direction"
  50
  51 # Test FPU stack. FPU stack includes st0, st1, st2, st3, st4,
  52 # st5, st6, st7. We push 8 values to FPU stack in record mode
  53 # and see whether all are getting recorded.
  54
  55 set location [gdb_get_line_number "test st0 register"]
  56 gdb_test "until $location" ".*$srcfile:$location.*asm.*fld1.*" \
  57     "begin test st0"
  58 gdb_test "stepi" "asm.*fldl2t.*"              "push st0 == 1"
  59 gdb_test "info register st0" "st0 *1\[ \t\]+.*"     "verify st0 == 1"
  60
  61
  62 gdb_test "stepi" "asm.*fldl2e.*"              "push st0 == 3.3219280948*"
  63 gdb_test "info register st0" "st0 *3.32192.*\[ \t\]+.*" "verify st0 == 3.321928094*"
  64 gdb_test "info register st1" "st1 *1\[ \t\]+.*"       "verify st1 == 1"
  65
  66 gdb_test "stepi" "asm.*fldpi.*"                   "push st0 == 1.4426950406*"
  67 gdb_test "info register st0" "st0 *1.44269.*\[ \t\]+.*" "verify st0 == 1.442695040*"
  68 gdb_test "info register st1" "st1 *3.32192.*\[ \t\]+.*" "verify st1 == 3.3219280948*"
  69 gdb_test "info register st2" "st2 *1\[ \t\]+.*"         "verify st2 == 1"
  70
  71 gdb_test "stepi" "asm.*fldlg2.*"                  "push st0 == 3.14159265*"
  72 gdb_test "info register st0" "st0 *3.14159.*\[ \t\]+.*" "verify st0 == 3.14159265*"
  73 gdb_test "info register st1" "st1 *1.44269.*\[ \t\]+.*" "verify st1 == 1.4426950*"
  74 gdb_test "info register st2" "st2 *3.32192.*\[ \t\]+.*" "verify st2 == 3.3219280*"
  75 gdb_test "info register st3" "st3 *1\[ \t\]+.*"          "verify st3 == 1"
  76
  77 gdb_test "stepi" "asm.*fldln2.*"                  "push st0 == 0.301029*"
  78 gdb_test "info register st0" "st0 *0.30102.*\[ \t\]+.*" "verify st0 == 0.301029*"
  79 gdb_test "info register st1" "st1 *3.14159.*\[ \t\]+.*" "verify st1 == 3.14159265*"
  80 gdb_test "info register st2" "st2 *1.44269.*\[ \t\]+.*" "verify st2 == 1.44269506*"
  81 gdb_test "info register st3" "st3 *3.32192.*\[ \t\]+.*" "verify st3 == 3.3219280948*"
  82 gdb_test "info register st4" "st4 *1\[ \t\]+.*"         "verify st4 == 1"
  83
  84 gdb_test "stepi" "asm.*fldz.*"                    "push st0 == 0.69314*"
  85 gdb_test "info register st0" "st0 *0.69314.*\[ \t\]+.*" "verify st0 == 0.69314*"
  86 gdb_test "info register st1" "st1 *0.30102.*\[ \t\]+.*" "verify st1 == 0.301029*"
  87 gdb_test "info register st2" "st2 *3.14159.*\[ \t\]+.*" "verify st2 == 3.14159265*"
  88 gdb_test "info register st3" "st3 *1.44269.*\[ \t\]+.*" "verify st3 == 1.442695040*"
  89 gdb_test "info register st4" "st4 *3.32192.*\[ \t\]+.*" "verify st4 == 3.3219280948*"
  90 gdb_test "info register st5" "st5 *1\[ \t\]+.*"         "verify st5 == 1"
  91
  92 gdb_test "stepi" "asm.*fld1.*"                    "push st0 == 0"
  93 gdb_test "info register st0" "st0 *0\[ \t\]+.*"         "verify st0 == 0"
  94 gdb_test "info register st1" "st1 *0.69314.*\[ \t\]+.*" "verify st1 == 0.69314*"
  95 gdb_test "info register st2" "st2 *0.30102.*\[ \t\]+.*" "verify st2 == 0.301029*"
  96 gdb_test "info register st3" "st3 *3.14159.*\[ \t\]+.*" "verify st3 == 3.14159265*"
  97 gdb_test "info register st4" "st4 *1.44269.*\[ \t\]+.*" "verify st4 == 1.442695040*"
  98 gdb_test "info register st5" "st5 *3.32192.*\[ \t\]+.*" "verify st5 == 3.32192809*"
  99 gdb_test "info register st6" "st6 *1\[ \t\]+.*"         "verify st6 == 1"
 100
 101 gdb_test "stepi" "asm.*nop.*"                     "push st0 == 0"
 102 gdb_test "info register st0" "st0 *1\[ \t\]+.*"         "verify st0 == 1"
 103 gdb_test "info register st1" "st1 *0\[ \t\]+.*"         "verify st1 == 0"
 104 gdb_test "info register st2" "st2 *0.69314.*\[ \t\]+.*" "verify st2 == 0.69314*"
 105 gdb_test "info register st3" "st3 *0.30102.*\[ \t\]+.*" "verify st3 == 0.301029*"
 106 gdb_test "info register st4" "st4 *3.14159.*\[ \t\]+.*" "verify st4 == 3.14159265*"
 107 gdb_test "info register st5" "st5 *1.44269.*\[ \t\]+.*" "verify st5 == 1.44269504*"
 108 gdb_test "info register st6" "st6 *3.32192.*\[ \t\]+.*" "verify st6 == 3.3219280948*"
 109 gdb_test "info register st7" "st7 *1.*"           "verify st7 == 1"
 110
 111 # Now step backward, and check that st0 value reverts to zero.
 112
 113 gdb_test "reverse-stepi" "asm.*fld1.*"            "undo registers, st0-st7"
 114 gdb_test "info register st0" "st0 *0\[ \t\]+.*"         "verify st0 == 0"
 115 gdb_test "info register st1" "st1 *0.69314.*\[ \t\]+.*" "verify st1 == 0.69314*"
 116 gdb_test "info register st2" "st2 *0.30102.*\[ \t\]+.*" "verify st2 == 0.301029*"
 117 gdb_test "info register st3" "st3 *3.14159.*\[ \t\]+.*" "verify st3 == 3.14159265*"
 118 gdb_test "info register st4" "st4 *1.44269.*\[ \t\]+.*" "verify st4 == 1.442695040*"
 119 gdb_test "info register st5" "st5 *3.32192.*\[ \t\]+.*" "verify st5 == 3.3219280948*"
 120 gdb_test "info register st6" "st6 *1\[ \t\]+.*"         "verify st6 == 1"
 121
 122 gdb_test "reverse-stepi" "asm.*fldz.*"            "push st0 == 0.69314*"
 123 gdb_test "info register st0" "st0 *0.69314.*\[ \t\]+.*" "verify st0 == 0.69314*"
 124 gdb_test "info register st1" "st1 *0.30102.*\[ \t\]+.*" "verify st1 == 0.301029*"
 125 gdb_test "info register st2" "st2 *3.14159.*\[ \t\]+.*" "verify st2 == 3.14159265*"
 126 gdb_test "info register st3" "st3 *1.44269.*\[ \t\]+.*" "verify st3 == 1.442695040*"
 127 gdb_test "info register st4" "st4 *3.32192.*\[ \t\]+.*" "verify st4 == 3.3219280948*"
 128 gdb_test "info register st5" "st5 *1\[ \t\]+.*"       "verify st5 == 1"
 129
 130 gdb_test "reverse-stepi" "asm.*fldln2.*"          "push st0 == 0.301029*"
 131 gdb_test "info register st0" "st0 *0.30102.*\[ \t\]+.*" "verify st0 == 0.301029*"
 132 gdb_test "info register st1" "st1 *3.14159.*\[ \t\]+.*" "verify st1 == 3.14159265*"
 133 gdb_test "info register st2" "st2 *1.44269.*\[ \t\]+.*" "verify st2 == 1.442695040*"
 134 gdb_test "info register st3" "st3 *3.32192.*\[ \t\]+.*" "verify st3 == 3.3219280948*"
 135 gdb_test "info register st4" "st4 *1\[ \t\]+.*"         "verify st4 == 1"
 136
 137 gdb_test "reverse-stepi" "asm.*fldlg2.*"          "push st0 == 3.14159265*"
 138 gdb_test "info register st0" "st0 *3.14159.*\[ \t\]+.*" "verify st0 == 3.14159265*"
 139 gdb_test "info register st1" "st1 *1.44269.*\[ \t\]+.*" "verify st1 == 1.442695040*"
 140 gdb_test "info register st2" "st2 *3.32192.*\[ \t\]+.*" "verify st2 == 3.3219280948*"
 141 gdb_test "info register st3" "st3 *1\[ \t\]+.*"       "verify st3 == 1"
 142
 143 gdb_test "reverse-stepi" "asm.*fldpi.*"           "push st0 == 1.44269504088*"
 144 gdb_test "info register st0" "st0 *1.44269.*\[ \t\]+.*" "verify st0 == 1.442695040*"
 145 gdb_test "info register st1" "st1 *3.32192.*\[ \t\]+.*" "verify st1 == 3.3219280948*"
 146 gdb_test "info register st2" "st2 *1\[ \t\]+.*"         "verify st2 == 1"
 147
 148
 149 gdb_test "reverse-stepi" "asm.*fldl2e.*"          "push st0 == 3.3219280948*"
 150 gdb_test "info register st0" "st0 *3.32192.*\[ \t\]+.*" "verify st0 == 3.3219280948*"
 151 gdb_test "info register st1" "st1 *1\[ \t\]+.*"         "verify st1 == 1"
 152
 153 gdb_test "reverse-stepi" "asm.*fldl2t.*"      "push st0 == 1"
 154 gdb_test "info register st0" "st0 *1\[ \t\]+.*"     "verify st0 == 1"
 155
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