gdb/testsuite/gdb.dlang/watch-loc.exp

   1 # Copyright (C) 2017-2022 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 # Test symbol lookup when there are multiple circular imports.
  17
  18 load_lib "d-support.exp"
  19 load_lib "dwarf.exp"
  20
  21 if { [skip_d_tests] } { return -1 }
  22
  23 # This test can only be run on targets which support DWARF-2 and use gas.
  24 if {![dwarf2_support]} {
  25     return 0
  26 }
  27
  28 standard_testfile watch-loc.c watch-loc-dw.S
  29
  30 lassign [function_range _Dmain ${srcdir}/${subdir}/${srcfile}] \
  31     dmain_start dmain_length
  32
  33
  34 # Make some DWARF for the test.
  35 set asm_file [standard_output_file $srcfile2]
  36 Dwarf::assemble $asm_file {
  37     cu {} {
  38         compile_unit {
  39             {language @DW_LANG_D}
  40         } {
  41             declare_labels watch_module_label watch_struct_label
  42
  43             watch_module_label: module {
  44                 {name watch}
  45             } {
  46                 watch_struct_label: structure_type {
  47                     {name tstruct}
  48                     {byte_size 1 data1}
  49                 }
  50
  51                 tag_variable {
  52                     {name my_data}
  53                     {type :$watch_struct_label}
  54                     {location {
  55                         addr [gdb_target_symbol my_data]
  56                     } SPECIAL_expr}
  57                     {external 1 flag}
  58                 }
  59
  60                 subprogram {
  61                     {MACRO_AT_func { "_Dmain" }}
  62                     {external 1 flag_present}
  63                 }
  64             }
  65         }
  66     }
  67 }
  68
  69 set dmain_start_list [split $dmain_start]
  70 set dmain_start_0 [lindex $dmain_start_list 0]
  71 set dmain_start_1 [lindex $dmain_start_list 1]
  72 set dmain_start_2 [lindex $dmain_start_list 2]
  73
  74 if { [prepare_for_testing "failed to prepare" ${testfile} \
  75           [list $srcfile $asm_file] \
  76           "nodebug \
  77                additional_flags=-DWITH_DEBUG_SECTIONS \
  78                additional_flags=-DDMAIN_START_0=$dmain_start_0 \
  79                additional_flags=-DDMAIN_START_1=$dmain_start_1 \
  80                additional_flags=-DDMAIN_START_2=$dmain_start_2 \
  81                additional_flags=-DDMAIN_LENGTH=$dmain_length"] } {
  82     return -1
  83 }
  84
  85 gdb_test_no_output "set language d"
  86
  87 if {![runto "_Dmain"]} {
  88     return -1
  89 }
  90
  91 # watch -l will rewrite the expression to "*(watch.tstruct *) 0x12345",
  92 # this should not cause syntax error in the cast expression.
  93 gdb_test "watch -l my_data" ".*atchpoint \[0-9\]+: -location my_data"
  94
  95 # Same test as above, but done explicitly.
  96 gdb_test "print *(watch.tstruct *) &my_data" "{<No data fields>}"