gdb/testsuite/gdb.arch/disp-step-insn-reloc.exp

   1 # Copyright 2015-2019 Free Software Foundation, Inc.
   2 # This program is free software; you can redistribute it and/or modify
   3 # it under the terms of the GNU General Public License as published by
   4 # the Free Software Foundation; either version 3 of the License, or
   5 # (at your option) any later version.
   6 #
   7 # This program is distributed in the hope that it will be useful,
   8 # but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10 # GNU General Public License for more details.
  11 #
  12 # You should have received a copy of the GNU General Public License
  13 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  14
  15 standard_testfile insn-reloc.c
  16 set executable $testfile
  17 set expfile $testfile.exp
  18
  19 if { ![support_displaced_stepping] } {
  20     unsupported "displaced stepping"
  21     return -1
  22 }
  23
  24 # Some targets have leading underscores on assembly symbols.
  25 set additional_flags [gdb_target_symbol_prefix_flags]
  26
  27 if [prepare_for_testing "failed to prepare" $executable $srcfile \
  28         [list debug $additional_flags]] {
  29     return -1
  30 }
  31
  32 if ![runto_main] {
  33     fail "can't run to main"
  34     return -1
  35 }
  36
  37 # Read function name from testcases[N].
  38
  39 proc read_testcase { n } {
  40     global gdb_prompt
  41
  42     set result -1
  43     gdb_test_multiple "print testcases\[${n}\]" "read name of test case ${n}" {
  44         -re "\[$\].*= .*<(.*)>.*$gdb_prompt $" {
  45             set result $expect_out(1,string)
  46         }
  47         -re "$gdb_prompt $" { }
  48     }
  49
  50     return $result
  51 }
  52
  53 set n_testcases [get_integer_valueof "n_testcases" 0]
  54 if { ${n_testcases} == 0 } {
  55     untested "no instruction relocation to test"
  56     return 1
  57 }
  58
  59 # Set a fast tracepoint on each set_point${i} symbol.  There is one for
  60 # each testcase.
  61 for { set i 0 } { ${i} < ${n_testcases} } { incr i } {
  62     set testcase [read_testcase $i]
  63
  64     gdb_test "break *set_point$i" "Breakpoint .*" "breakpoint on ${testcase}"
  65 }
  66
  67 gdb_test "break pass" ".*" ""
  68 gdb_test "break fail" ".*" ""
  69
  70 gdb_test_no_output "set displaced-stepping on"
  71
  72 # Make sure we have hit the pass breakpoint for each testcase.
  73 for { set i 0 } { ${i} < ${n_testcases} } { incr i } {
  74     set testcase [read_testcase $i]
  75
  76     with_test_prefix "${testcase}" {
  77         gdb_test "continue" ".*Breakpoint \[0-9\]+, .*" \
  78             "go to breakpoint $i"
  79
  80         gdb_test "continue" ".*Breakpoint \[0-9\]+, pass \(\).*" \
  81             "relocated instruction"
  82     }
  83 }