gdb/testsuite/gdb.arch/i386-byte.exp

   1 # Copyright 2010 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 if $tracelevel {
  22     strace $tracelevel
  23 }
  24
  25
  26 if {(![istarget "x86_64-*-*"] && ![istarget "i?86-*-*"]) || ![is_ilp32_target] } then {
  27     verbose "Skipping i386 byte register tests."
  28     return
  29 }
  30
  31 set testfile "i386-byte"
  32 set srcfile i386-pseudo.c
  33 set binfile ${objdir}/${subdir}/${testfile}
  34
  35 if [get_compiler_info ${binfile}] {
  36     return -1
  37 }
  38
  39 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug]] != "" } {
  40     untested ${testfile}
  41     return
  42 }
  43
  44 gdb_exit
  45 gdb_start
  46 gdb_reinitialize_dir $srcdir/$subdir
  47 gdb_load ${binfile}
  48
  49 if ![runto_main] then {
  50     gdb_suppress_tests
  51 }
  52
  53 set byte_regs(1) al
  54 set byte_regs(2) bl
  55 set byte_regs(3) cl
  56 set byte_regs(4) dl
  57 set byte_regs(5) ah
  58 set byte_regs(6) bh
  59 set byte_regs(7) ch
  60 set byte_regs(8) dh
  61
  62 gdb_test "break [gdb_get_line_number "first breakpoint here"]" \
  63          "Breakpoint .* at .*${srcfile}.*" \
  64          "set first breakpoint in main"
  65 gdb_continue_to_breakpoint "continue to first breakpoint in main"
  66
  67 for { set r 1 } { $r <= 4  } { incr r } {
  68     gdb_test "print/x \$$byte_regs($r)" \
  69         ".. = 0x[format %x $r]1" \
  70         "check contents of %$byte_regs($r)"
  71     set h [expr $r + 4]
  72     gdb_test "print/x \$$byte_regs($h)" \
  73         ".. = 0x[format %x $r]2" \
  74         "check contents of %$byte_regs($h)"
  75 }
  76
  77 for { set r 1 } { $r <= 4  } { incr r } {
  78   gdb_test "set var \$$byte_regs($r) = $r" "" "set %$byte_regs($r)"
  79   set h [expr $r + 4]
  80   gdb_test "set var \$$byte_regs($h) = $h" "" "set %$byte_regs($h)"
  81 }
  82
  83 gdb_test "break [gdb_get_line_number "second breakpoint here"]" \
  84          "Breakpoint .* at .*${srcfile}.*" \
  85          "set second breakpoint in main"
  86 gdb_continue_to_breakpoint "continue to second breakpoint in main"
  87
  88 for { set r 1 } { $r <= 4  } { incr r } {
  89     gdb_test "print \$$byte_regs($r)" \
  90         ".. = $r" \
  91         "check contents of %$byte_regs($r)"
  92     set h [expr $r + 4]
  93     gdb_test "print \$$byte_regs($h)" \
  94         ".. = $h" \
  95         "check contents of %$byte_regs($h)"
  96 }