gdb/testsuite/gdb.arch/i386-gnu-cfi.exp

   1 # Copyright 2007, 2008 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 # Please email any bugs, comments, and/or additions to this file to:
  17 # bug-gdb@gnu.org
  18
  19 # This file is part of the gdb testsuite.
  20
  21 # Unwinding of DW_CFA_GNU_negative_offset_extended test program.
  22
  23 if $tracelevel {
  24     strace $tracelevel
  25 }
  26
  27 # Test i386 unwinder.
  28
  29 set prms_id 0
  30 set bug_id 0
  31
  32 if ![istarget "i?86-*-*"] then {
  33     verbose "Skipping i386 unwinder tests."
  34     return
  35 }
  36
  37 set testfile "i386-gnu-cfi"
  38 set srcfilec ${testfile}.c
  39 set srcfileasm ${testfile}-asm.S
  40 set binfile ${objdir}/${subdir}/${testfile}
  41
  42 # some targets have leading underscores on assembly symbols.
  43 # TODO: detect this automatically
  44 set additional_flags ""
  45 if [istarget "i?86-*-cygwin*"] then {
  46   set additional_flags "additional_flags=-DSYMBOL_PREFIX=\"_\""
  47 }
  48
  49 if { [gdb_compile "${srcdir}/${subdir}/${srcfilec} ${srcdir}/${subdir}/${srcfileasm}" "${binfile}" executable [list debug $additional_flags]] != "" } {
  50     untested i386-gnu-cfi.exp
  51     return -1
  52 }
  53
  54 # Get things started.
  55
  56 gdb_exit
  57 gdb_start
  58 gdb_reinitialize_dir $srcdir/$subdir
  59 gdb_load ${binfile}
  60
  61 # We should stop in abort(3).
  62
  63 gdb_run_cmd
  64
  65 gdb_test_multiple {} "continue to abort()" {
  66     -re ".*Program received signal SIGABRT,.*$gdb_prompt $" {
  67         pass "continue to abort()"
  68     }
  69 }
  70
  71 # Backtrace would crash before.
  72
  73 gdb_test "bt" \
  74          "main \\(\\) at .*${testfile}.c.*" \
  75          "backtrace"
  76
  77 # Check we see the inserted `DW_CFA_GNU_negative_offset_extended' CFI.
  78 # We see there the original CFI-stored filename `gate.c'.
  79
  80 gdb_test "up 3" \
  81          "gate \\(\[^()\]*\\) at .*gate.c.*" \
  82          "shift up to the modified frame"
  83
  84 gdb_test_multiple "info frame" "Existence of the CFI inserted register" {
  85     -re "Stack level 3, frame at (0x\[0-9a-f\]+):.*Saved registers:.* ecx at (0x\[0-9a-f\]+),.*" {
  86         pass "Existence of the CFI inserted register"
  87         if { [string compare $expect_out(1,string) $expect_out(2,string)] } then {
  88             fail "Value of the CFI inserted register"
  89         } else {
  90             pass "Value of the CFI inserted register"
  91         }
  92     }
  93 }