gdb/testsuite/gdb.dwarf2/ada-linkage-name.exp

   1 # Copyright 2019-2020 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 # Regression test to ensure that the order of DW_AT_name and
  17 # DW_AT_linkage_name does not affect Ada.
  18
  19 load_lib dwarf.exp
  20
  21 # This test can only be run on targets which support DWARF-2 and use gas.
  22 if {![dwarf2_support]} {
  23     return 0
  24 }
  25
  26 standard_testfile ada-linkage-name.c ada-linkage-name-debug.S
  27
  28 # Set up the DWARF for the test.
  29
  30 set asm_file [standard_output_file $srcfile2]
  31 Dwarf::assemble $asm_file {
  32     global srcdir subdir srcfile
  33
  34     lassign [function_range first ${srcdir}/${subdir}/${srcfile}] \
  35         first_start first_length
  36
  37     lassign [function_range second ${srcdir}/${subdir}/${srcfile}] \
  38         second_start second_length
  39
  40     cu {} {
  41         DW_TAG_compile_unit {
  42                 {DW_AT_language @DW_LANG_Ada95}
  43                 {DW_AT_name     ada-linkage-name.c}
  44                 {DW_AT_comp_dir /tmp}
  45
  46         } {
  47             declare_labels b_l
  48
  49             b_l: DW_TAG_base_type {
  50                 {DW_AT_byte_size 1 DW_FORM_sdata}
  51                 {DW_AT_encoding  @DW_ATE_signed}
  52                 {DW_AT_name      bool}
  53             }
  54             # Here the name comes first and the linkage name second.
  55             DW_TAG_subprogram {
  56                 {name system__namefirst}
  57                 {linkage_name __gnat_namefirst}
  58                 {low_pc $first_start addr}
  59                 {high_pc "$first_start + $first_length" addr}
  60                 {type :$b_l}
  61             }
  62             # Here the linkage name comes first and the name second.
  63             DW_TAG_subprogram {
  64                 {linkage_name __gnat_namesecond}
  65                 {name system__namesecond}
  66                 {low_pc $second_start addr}
  67                 {high_pc "$second_start + $second_length" addr}
  68                 {type :$b_l}
  69             }
  70         }
  71     }
  72 }
  73
  74 if { [prepare_for_testing "failed to prepare" ${testfile} \
  75           [list $srcfile $asm_file] {nodebug}] } {
  76     return -1
  77 }
  78
  79 with_test_prefix "first first" {
  80     gdb_test_no_output "set language ada"
  81     gdb_breakpoint "<__gnat_namefirst>" message
  82     gdb_breakpoint "<__gnat_namesecond>" message
  83 }
  84
  85 # Run the test again, but this time check the symbols in the other
  86 # order.  This ensures we are really testing all the paths --
  87 # otherwise if the first symbol is found, it will cause symtab
  88 # expansion, which might cause the other symbol to be found.
  89 clean_restart ${testfile}
  90
  91 with_test_prefix "second first" {
  92     gdb_test_no_output "set language ada"
  93     gdb_breakpoint "<__gnat_namesecond>" message
  94     gdb_breakpoint "<__gnat_namefirst>" message
  95 }