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

   1 # Copyright 2010-2020 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
  22 if {(![istarget "x86_64-*-*"] && ![istarget "i?86-*-*"])} then {
  23     verbose "Skipping i386 byte register tests."
  24     return
  25 }
  26
  27 standard_testfile i386-pseudo.c
  28
  29 if [get_compiler_info] {
  30     return -1
  31 }
  32
  33 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug]] != "" } {
  34     untested "failed to compile"
  35     return
  36 }
  37
  38 clean_restart ${binfile}
  39
  40 if ![runto_main] then {
  41     fail "can't run to main"
  42     return 0
  43 }
  44
  45 set byte_regs(1) al
  46 set byte_regs(2) bl
  47 set byte_regs(3) cl
  48 set byte_regs(4) dl
  49 set byte_regs(5) ah
  50 set byte_regs(6) bh
  51 set byte_regs(7) ch
  52 set byte_regs(8) dh
  53
  54 gdb_test "break [gdb_get_line_number "first breakpoint here"]" \
  55          "Breakpoint .* at .*${srcfile}.*" \
  56          "set first breakpoint in main"
  57 gdb_continue_to_breakpoint "continue to first breakpoint in main"
  58
  59 for { set r 1 } { $r <= 4  } { incr r } {
  60     gdb_test "print/x \$$byte_regs($r)" \
  61         ".. = 0x[format %x $r]1" \
  62         "check contents of %$byte_regs($r)"
  63     set h [expr $r + 4]
  64     gdb_test "print/x \$$byte_regs($h)" \
  65         ".. = 0x[format %x $r]2" \
  66         "check contents of %$byte_regs($h)"
  67 }
  68
  69 for { set r 1 } { $r <= 4  } { incr r } {
  70   gdb_test "set var \$$byte_regs($r) = $r" "" "set %$byte_regs($r)"
  71   set h [expr $r + 4]
  72   gdb_test "set var \$$byte_regs($h) = $h" "" "set %$byte_regs($h)"
  73 }
  74
  75 gdb_test "break [gdb_get_line_number "second breakpoint here"]" \
  76          "Breakpoint .* at .*${srcfile}.*" \
  77          "set second breakpoint in main"
  78 gdb_continue_to_breakpoint "continue to second breakpoint in main"
  79
  80 for { set r 1 } { $r <= 4  } { incr r } {
  81     gdb_test "print \$$byte_regs($r)" \
  82         ".. = $r" \
  83         "check contents of %$byte_regs($r)"
  84     set h [expr $r + 4]
  85     gdb_test "print \$$byte_regs($h)" \
  86         ".. = $h" \
  87         "check contents of %$byte_regs($h)"
  88 }