gdb/testsuite/gdb.ada/fixed_points.exp

   1 # Copyright 2004-2021 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 load_lib "ada.exp"
  17
  18 if { [skip_ada_tests] } { return -1 }
  19
  20 standard_ada_testfile fixed_points
  21
  22 foreach_with_prefix scenario {all minimal} {
  23     set flags [list debug additional_flags=-fgnat-encodings=$scenario]
  24     if {[gdb_compile_ada "${srcfile}" "${binfile}" executable $flags] != ""} {
  25         return -1
  26     }
  27
  28     clean_restart ${testfile}
  29
  30     set bp_location [gdb_get_line_number "Set breakpoint here" ${testdir}/fixed_points.adb]
  31     runto "fixed_points.adb:$bp_location"
  32
  33     # Fixed point subtypes:
  34
  35     gdb_test "print base_object" \
  36         "= -50" \
  37         "p on a fixed point type"
  38
  39     gdb_test "print subtype_object" \
  40         "= -50" \
  41         "p on a subtype fixed point type"
  42
  43     gdb_test "print new_type_object" \
  44         "= -50" \
  45         "p on a new fixed point type"
  46
  47     # Overprecise delta:
  48
  49     gdb_test "print Overprecise_Object" \
  50         "= 0.13579135791"
  51
  52     gdb_test_multiple "ptype Overprecise_Object" "" {
  53         -re "type = <2-byte fixed point \\(small = 135791357913579/1000000000000000\\)>\r\n$gdb_prompt $" {
  54             pass $gdb_test_name
  55         }
  56         -re "type = delta 0.135791\r\n$gdb_prompt $" {
  57             # The (legacy) output we obtain when the compiler described
  58             # our fixed point types using the GNAT encodings rather than
  59             # standard DWARF.  OK as well.
  60             pass $gdb_test_name
  61         }
  62     }
  63
  64     # FP*_Var...
  65
  66     gdb_test "print fp1_var" \
  67         " = 0.25"
  68
  69     gdb_test_multiple "ptype fp1_var" "" {
  70         -re "type = <1-byte fixed point \\(small = 1/16\\)>\r\n$gdb_prompt $" {
  71             pass $gdb_test_name
  72         }
  73         -re "type = delta 0\\.1 <'small = 0\\.0625>\r\n$gdb_prompt $" {
  74             # The (legacy) output we obtain when the compiler described
  75             # our fixed point types using the GNAT encodings rather than
  76             # standard DWARF.  OK as well.
  77             pass $gdb_test_name
  78         }
  79     }
  80
  81     gdb_test "print fp2_var" \
  82         " = -0.01"
  83
  84     gdb_test_multiple "ptype fp2_var" "" {
  85         -re "type = <8-byte fixed point \\(small = 1/100\\)>\r\n$gdb_prompt $" {
  86             pass $gdb_test_name
  87         }
  88         -re "type = delta 0\\.01\r\n$gdb_prompt $" {
  89             # The (legacy) output we obtain when the compiler described
  90             # our fixed point types using the GNAT encodings rather than
  91             # standard DWARF.  OK as well.
  92             pass $gdb_test_name
  93         }
  94     }
  95
  96     gdb_test "print fp3_var" \
  97         " = 0.1"
  98
  99     gdb_test_multiple "ptype fp3_var" "" {
 100         -re "type = <1-byte fixed point \\(small = 1/30\\)>\r\n$gdb_prompt $" {
 101             pass $gdb_test_name
 102         }
 103         -re "type = delta 0\\.1 <'small = 0\\.0333333>\r\n$gdb_prompt $" {
 104             # The (legacy) output we obtain when the compiler described
 105             # our fixed point types using the GNAT encodings rather than
 106             # standard DWARF.  OK as well.
 107             pass $gdb_test_name
 108         }
 109     }
 110
 111     # One of the benefits of minimal encoding is that operations work
 112     # a bit better.
 113     if {$scenario == "minimal"} {
 114         gdb_test "print fp2_var + 0" \
 115             " = -0.01"
 116         gdb_test "print 0 + fp2_var" \
 117             " = -0.01"
 118         gdb_test "print fp2_var - 0" \
 119             " = -0.01"
 120
 121         set fp4 "= 2e-07"
 122         gdb_test "print fp4_var" $fp4
 123         gdb_test "print fp4_var * 1" $fp4
 124         gdb_test "print 1 * fp4_var" $fp4
 125         gdb_test "print fp4_var / 1" $fp4
 126
 127         # This only started working in GCC 11.
 128         if {[test_compiler_info {gcc-11-*}]} {
 129             gdb_test "print fp5_var" " = 3e-19"
 130         }
 131     }
 132 }