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

   1 # Copyright 2015-2016 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 $expfile $executable $srcfile \
  28         [list debug $additional_flags]] {
  29     untested "failed to prepare for tests"
  30     return -1
  31 }
  32
  33 if ![runto_main] {
  34     fail "can't run to main"
  35     return -1
  36 }
  37
  38 # Read function name from testcases[N].
  39
  40 proc read_testcase { n } {
  41     global gdb_prompt
  42
  43     set result -1
  44     gdb_test_multiple "print testcases\[${n}\]" "read name of test case ${n}" {
  45         -re "\[$\].*= .*<(.*)>.*$gdb_prompt $" {
  46             set result $expect_out(1,string)
  47         }
  48         -re "$gdb_prompt $" { }
  49     }
  50
  51     return $result
  52 }
  53
  54 set n_testcases [get_integer_valueof "n_testcases" 0]
  55 if { ${n_testcases} == 0 } {
  56     untested "no instruction relocation to test"
  57     return 1
  58 }
  59
  60 # Set a fast tracepoint on each set_point${i} symbol.  There is one for
  61 # each testcase.
  62 for { set i 0 } { ${i} < ${n_testcases} } { incr i } {
  63     set testcase [read_testcase $i]
  64
  65     gdb_test "break *set_point$i" "Breakpoint .*" "breakpoint on ${testcase}"
  66 }
  67
  68 gdb_test "break pass" ".*" ""
  69 gdb_test "break fail" ".*" ""
  70
  71 gdb_test_no_output "set displaced-stepping on"
  72
  73 # Make sure we have hit the pass breakpoint for each testcase.
  74 for { set i 0 } { ${i} < ${n_testcases} } { incr i } {
  75     set testcase [read_testcase $i]
  76
  77     with_test_prefix "${testcase}" {
  78         gdb_test "continue" ".*Breakpoint \[0-9\]+, .*" \
  79             "go to breakpoint $i"
  80
  81         gdb_test "continue" ".*Breakpoint \[0-9\]+, pass \(\).*" \
  82             "relocated instruction"
  83     }
  84 }