gdb/testsuite/gdb.dwarf2/implptrconst.exp

   1 # Copyright 2013-2014 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 dwarf.exp
  17
  18 # This test can only be run on targets which support DWARF-2 and use gas.
  19 if {![dwarf2_support]} {
  20     return 0
  21 }
  22
  23 if { [skip_cplus_tests] } { continue }
  24
  25 standard_testfile .c implptrconst-dw.S
  26
  27 # Make some DWARF for the test.
  28 set asm_file [standard_output_file $srcfile2]
  29 Dwarf::assemble $asm_file {
  30     # Creating a CU with 4-byte addresses lets this test link on both
  31     # 32- and 64-bit machines.
  32     cu { addr_size 4 } {
  33         compile_unit {} {
  34             declare_labels byte_label size_type_label array_label
  35             declare_labels var_label ptr_label
  36
  37             byte_label: base_type {
  38                 {name byte}
  39                 {encoding @DW_ATE_signed}
  40                 {byte_size 1 DW_FORM_sdata}
  41             }
  42
  43             size_type_label: base_type {
  44                 {name sizetype}
  45                 {encoding @DW_ATE_unsigned}
  46                 {byte_size 4 DW_FORM_sdata}
  47             }
  48
  49             array_label: array_type {
  50                 {type :$byte_label}
  51             } {
  52                 subrange_type {
  53                     {type :$size_type_label}
  54                     {upper_bound 7 DW_FORM_data1}
  55                 }
  56             }
  57
  58             var_label: DW_TAG_variable {
  59                 {name b}
  60                 {type :$array_label}
  61                 {const_value rstuvwxy DW_FORM_block1}
  62             }
  63
  64             ptr_label: pointer_type {
  65                 {byte_size 4 DW_FORM_sdata}
  66                 {type :$byte_label}
  67             }
  68
  69             DW_TAG_variable {
  70                 {name c}
  71                 {type :$ptr_label}
  72                 {location {
  73                     GNU_implicit_pointer $var_label 0
  74                 } SPECIAL_expr}
  75             }
  76
  77             DW_TAG_variable {
  78                 {name d}
  79                 {type :$ptr_label}
  80                 {location {
  81                     GNU_implicit_pointer $var_label 2
  82                 } SPECIAL_expr}
  83             }
  84         }
  85     }
  86 }
  87
  88 if  {[gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile}1.o \
  89           object {nodebug}] != ""} {
  90     return -1
  91 }
  92
  93 if  {[gdb_compile $asm_file ${binfile}2.o object {nodebug}] != ""} {
  94     return -1
  95 }
  96
  97 if  {[gdb_compile [list ${binfile}1.o ${binfile}2.o] \
  98           "${binfile}" executable {}] != ""} {
  99     return -1
 100 }
 101
 102 # We need --readnow because otherwise we never read in the CU we
 103 # created above.
 104 set saved_gdbflags $GDBFLAGS
 105 set GDBFLAGS "$GDBFLAGS -readnow"
 106 clean_restart ${testfile}
 107 set GDBFLAGS $saved_gdbflags
 108
 109 if ![runto_main] {
 110     return -1
 111 }
 112
 113 gdb_test "print *c" " = 114 'r'"
 114 gdb_test "print d\[-2\]" " = 114 'r'"