gdb: Allow GDB to _not_ load a previous command history

[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.arch / amd64-dword.exp

# Copyright 2010-2020 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@gnu.org

# This file is part of the gdb testsuite.


if { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
    verbose "Skipping amd64 dword register tests."
    return
}

standard_testfile amd64-pseudo.c

if [get_compiler_info] {
    return -1
}

if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug]] != "" } {
    untested "failed to compile"
    return
}

clean_restart ${binfile}

if ![runto_main] then {
    fail "can't run to main"
    return 0
}

set nr_regs 14
set dword_regs(1) eax
set dword_regs(2) ebx
set dword_regs(3) ecx
set dword_regs(4) edx
set dword_regs(5) esi
set dword_regs(6) edi
set dword_regs(7) r8d
set dword_regs(8) r9d
set dword_regs(9) r10d
set dword_regs(10) r11d
set dword_regs(11) r12d
set dword_regs(12) r13d
set dword_regs(13) r14d
set dword_regs(14) r15d

gdb_test "break [gdb_get_line_number "first breakpoint here"]" \
         "Breakpoint .* at .*${srcfile}.*" \
         "set first breakpoint in main"
gdb_continue_to_breakpoint "continue to first breakpoint in main"

for { set r 1 } { $r <= 6  } { incr r } {
    set hexr [format %x $r]
    gdb_test "print/x \$$dword_regs($r)" \
	".. = 0x${hexr}4${hexr}3${hexr}2${hexr}1" \
        "check contents of %$dword_regs($r)"
}

gdb_test "break [gdb_get_line_number "second breakpoint here"]" \
         "Breakpoint .* at .*${srcfile}.*" \
         "set second breakpoint in main"
gdb_continue_to_breakpoint "continue to second breakpoint in main"

for { set r 7 } { $r <= $nr_regs  } { incr r } {
    set hexr [format %x $r]
    gdb_test "print/x \$$dword_regs($r)" \
	".. = 0x${hexr}4${hexr}3${hexr}2${hexr}1" \
        "check contents of %$dword_regs($r)"
}

for { set r 1 } { $r <= 6  } { incr r } {
  gdb_test "set var \$$dword_regs($r) = $r" "" "set %$dword_regs($r)"
}

gdb_test "break [gdb_get_line_number "third breakpoint here"]" \
         "Breakpoint .* at .*${srcfile}.*" \
         "set third breakpoint in main"
gdb_continue_to_breakpoint "continue to third breakpoint in main"

for { set r 1 } { $r <= 6  } { incr r } {
    gdb_test "print \$$dword_regs($r)" \
        ".. = $r" \
        "check contents of %$dword_regs($r)"
}

for { set r 7 } { $r <= $nr_regs  } { incr r } {
  gdb_test "set var \$$dword_regs($r) = $r" "" "set %$dword_regs($r)"
}

gdb_test "break [gdb_get_line_number "forth breakpoint here"]" \
         "Breakpoint .* at .*${srcfile}.*" \
         "set forth breakpoint in main"
gdb_continue_to_breakpoint "continue to forth breakpoint in main"

for { set r 7 } { $r <= $nr_regs  } { incr r } {
    gdb_test "print \$$dword_regs($r)" \
        ".. = $r" \
        "check contents of %$dword_regs($r)"
}