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

   1 # Copyright 2010-2022 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-*-*"])} {
  23     verbose "Skipping i386 byte register tests."
  24     return
  25 }
  26
  27 standard_testfile i386-pseudo.c
  28
  29 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug]] != "" } {
  30     untested "failed to compile"
  31     return
  32 }
  33
  34 clean_restart ${binfile}
  35
  36 if {![runto_main]} {
  37     return 0
  38 }
  39
  40 set byte_regs(1) al
  41 set byte_regs(2) bl
  42 set byte_regs(3) cl
  43 set byte_regs(4) dl
  44 set byte_regs(5) ah
  45 set byte_regs(6) bh
  46 set byte_regs(7) ch
  47 set byte_regs(8) dh
  48
  49 gdb_breakpoint [gdb_get_line_number "first breakpoint here"]
  50 gdb_continue_to_breakpoint "continue to first breakpoint in main"
  51
  52 with_test_prefix "at first bp" {
  53     for { set r 1 } { $r <= 4  } { incr r } {
  54         gdb_test "print/x \$$byte_regs($r)" \
  55             ".. = 0x[format %x $r]1" \
  56             "check contents of %$byte_regs($r)"
  57         set h [expr $r + 4]
  58         gdb_test "print/x \$$byte_regs($h)" \
  59             ".. = 0x[format %x $r]2" \
  60             "check contents of %$byte_regs($h)"
  61     }
  62
  63     for { set r 1 } { $r <= 4  } { incr r } {
  64         gdb_test "set var \$$byte_regs($r) = $r" "" "set %$byte_regs($r)"
  65         set h [expr $r + 4]
  66         gdb_test "set var \$$byte_regs($h) = $h" "" "set %$byte_regs($h)"
  67     }
  68 }
  69
  70 gdb_breakpoint [gdb_get_line_number "second breakpoint here"]
  71 gdb_continue_to_breakpoint "continue to second breakpoint in main"
  72
  73 with_test_prefix "at second bp" {
  74     for { set r 1 } { $r <= 4  } { incr r } {
  75         gdb_test "print \$$byte_regs($r)" \
  76             ".. = $r" \
  77             "check contents of %$byte_regs($r)"
  78         set h [expr $r + 4]
  79         gdb_test "print \$$byte_regs($h)" \
  80             ".. = $h" \
  81             "check contents of %$byte_regs($h)"
  82     }
  83 }