gdb/testsuite/gdb.arch/powerpc-aix-prologue.exp

   1 # Copyright 2004-2017 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 # This file is part of the gdb testsuite.
  17
  18 # Test rs6000 prologue analyzer.
  19
  20
  21 if ![istarget "powerpc-*-aix*"] then {
  22     verbose "Skipping powerpc-aix prologue tests."
  23     return
  24 }
  25
  26 set testfile "powerpc-aix-prologue"
  27 set srcfile ${testfile}.c
  28 set binfile ${objdir}/${subdir}/${testfile}
  29 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {}] != "" } {
  30     unsupported "failed to compile"
  31     return -1
  32 }
  33
  34 gdb_exit
  35 gdb_start
  36 gdb_reinitialize_dir $srcdir/$subdir
  37 gdb_load ${binfile}
  38
  39 # Insert a breakpoint in FUNCTION and verifies that the breakpoint was
  40 # inserted at the expected location.  EXPECTED_LOCATION should be an
  41 # offset relative to the function start address.
  42 proc insert_breakpoint {function expected_location} {
  43     global gdb_prompt
  44     global expect_out
  45     global hex
  46
  47     set address ""
  48
  49     # Insert a breakpoint using the given function name, and extract
  50     # the breakpoint address for the output.
  51     gdb_test_multiple "break $function" "set breakpoint in $function" {
  52         -re "Breakpoint .* at ($hex).*$gdb_prompt $" {
  53             set address $expect_out(1,string)
  54         }
  55         default {
  56             fail "set breakpoint in $function"
  57         }
  58     }
  59
  60     # If we managed to get the breakpoing address, then check that
  61     # we inserted it at the expected location by examining the
  62     # instruction at that address (we're not interested in the insn
  63     # itself, but rather at the address printed at the begining of
  64     # the instruction).
  65     if { $address != "" } then {
  66        gdb_test "x /i $address" \
  67                 ".*<$function\\+$expected_location>.*" \
  68                 "check $function breakpoint address"
  69     } else {
  70        fail "unable to compute breakpoint address"
  71     }
  72
  73 }
  74
  75 insert_breakpoint "li_stw" 12
  76 insert_breakpoint "stack_check_probe_1" 16
  77 insert_breakpoint "stack_check_probe_2" 40
  78 insert_breakpoint "stack_check_probe_loop_1" 68
  79 insert_breakpoint "stack_check_probe_loop_2" 60
  80