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jeremybenn |
# Copyright 2009, 2010 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see .
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# This file is part of the gdb testsuite.
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#
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# This test tests some i386 general instructions for reverse execution.
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#
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if ![target_info exists gdb,can_reverse] {
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return
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}
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if $tracelevel {
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strace $tracelevel
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}
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if ![istarget "i?86-*linux*"] then {
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verbose "Skipping i386 reverse tests."
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return
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}
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set testfile "i386-reverse"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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# some targets have leading underscores on assembly symbols.
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# TODO: detect this automatically
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set additional_flags ""
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if [istarget "i?86-*-cygwin*"] then {
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set additional_flags "additional_flags=-DSYMBOL_PREFIX=\"_\""
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}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug $additional_flags]] != "" } {
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untested i386-reverse
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return -1
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}
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set end_of_main [gdb_get_line_number " end of main "]
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set end_of_inc_dec_tests [gdb_get_line_number " end inc_dec_tests "]
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# Get things started.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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runto main
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if [target_info exists gdb,use_precord] {
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# Activate process record/replay
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gdb_test_no_output "record" "Turn on process record"
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}
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global hex
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global decimal
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gdb_test "step" "inc .eax.*" "step to inc eax 1st time"
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send_gdb "info reg eax\n"
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gdb_expect {
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-re "eax *($hex)\t.*$gdb_prompt " {
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set preinc_eax $expect_out(1,string)
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}
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}
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gdb_test "step" "inc .ecx.*" "step to inc ecx 1st time"
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send_gdb "info reg ecx\n"
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gdb_expect {
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-re "ecx *($hex)\t.*$gdb_prompt " {
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set preinc_ecx $expect_out(1,string)
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}
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}
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gdb_test "step" "inc .edx.*" "step to inc edx 1st time"
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send_gdb "info reg edx\n"
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gdb_expect {
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-re "edx *($hex)\t.*$gdb_prompt " {
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set preinc_edx $expect_out(1,string)
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}
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}
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gdb_test "step" "inc .ebx.*" "step to inc ebx 1st time"
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send_gdb "info reg ebx\n"
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gdb_expect {
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-re "ebx *($hex)\t.*$gdb_prompt " {
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set preinc_ebx $expect_out(1,string)
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}
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}
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gdb_test "step" "inc .esp.*" "step to inc esp 1st time"
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send_gdb "info reg esp\n"
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gdb_expect {
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-re "esp *($hex)\t.*$gdb_prompt " {
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set preinc_esp $expect_out(1,string)
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}
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}
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gdb_test "step" "inc .ebp.*" "step to inc ebp 1st time"
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send_gdb "info reg ebp\n"
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gdb_expect {
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-re "ebp *($hex)\t.*$gdb_prompt " {
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set preinc_ebp $expect_out(1,string)
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}
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}
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gdb_test "step" "inc .esi.*" "step to inc esi 1st time"
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send_gdb "info reg esi\n"
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gdb_expect {
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-re "esi *($hex)\t.*$gdb_prompt " {
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set preinc_esi $expect_out(1,string)
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}
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}
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gdb_test "step" "inc .edi.*" "step to inc edi 1st time"
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send_gdb "info reg edi\n"
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gdb_expect {
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-re "edi *($hex)\t.*$gdb_prompt " {
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set preinc_edi $expect_out(1,string)
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}
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}
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gdb_test "step" "dec .eax.*" "step to dec eax 1st time"
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send_gdb "info reg eax\n"
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gdb_expect {
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-re "eax *($hex)\t.*$gdb_prompt " {
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set predec_eax $expect_out(1,string)
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}
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}
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gdb_test "step" "dec .ecx.*" "step to dec ecx 1st time"
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send_gdb "info reg ecx\n"
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gdb_expect {
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-re "ecx *($hex)\t.*$gdb_prompt " {
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set predec_ecx $expect_out(1,string)
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}
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}
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gdb_test "step" "dec .edx.*" "step to dec edx 1st time"
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send_gdb "info reg edx\n"
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gdb_expect {
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-re "edx *($hex)\t.*$gdb_prompt " {
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set predec_edx $expect_out(1,string)
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}
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}
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gdb_test "step" "dec .ebx.*" "step to dec ebx 1st time"
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send_gdb "info reg ebx\n"
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gdb_expect {
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-re "ebx *($hex)\t.*$gdb_prompt " {
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set predec_ebx $expect_out(1,string)
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}
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}
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gdb_test "step" "dec .esp.*" "step to dec esp 1st time"
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send_gdb "info reg esp\n"
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gdb_expect {
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-re "esp *($hex)\t.*$gdb_prompt " {
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set predec_esp $expect_out(1,string)
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}
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}
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gdb_test "step" "dec .ebp.*" "step to dec ebp 1st time"
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send_gdb "info reg ebp\n"
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gdb_expect {
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-re "ebp *($hex)\t.*$gdb_prompt " {
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set predec_ebp $expect_out(1,string)
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}
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}
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gdb_test "step" "dec .esi.*" "step to dec esi 1st time"
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send_gdb "info reg esi\n"
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gdb_expect {
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-re "esi *($hex)\t.*$gdb_prompt " {
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set predec_esi $expect_out(1,string)
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}
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}
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gdb_test "step" "dec .edi.*" "step to dec edi 1st time"
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send_gdb "info reg edi\n"
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gdb_expect {
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-re "edi *($hex)\t.*$gdb_prompt " {
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set predec_edi $expect_out(1,string)
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}
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}
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# gdb_test "step" "end inc_dec_tests .*" "step to end inc_dec_tests 1st time"
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gdb_test "break $end_of_main" \
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"Breakpoint $decimal at .* line $end_of_main\." \
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"set breakpoint at end of main"
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gdb_test "continue" \
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" end of main .*" \
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"continue to end of main"
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gdb_test "break $end_of_inc_dec_tests" \
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"Breakpoint $decimal at .* line $end_of_inc_dec_tests\." \
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"set breakpoint at end of inc_dec_tests"
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gdb_test "reverse-continue" \
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" end inc_dec_tests .*" \
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"reverse to inc_dec_tests"
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#
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# Now reverse step, and check register values.
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#
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gdb_test "info reg edi" "edi *$preinc_edi\t.*" "edi before reverse-dec"
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gdb_test "reverse-step" "dec .edi.*" "reverse-step to dec edi"
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gdb_test "info reg edi" "edi *$predec_edi\t.*" "edi after reverse-dec"
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gdb_test "info reg esi" "esi *$preinc_esi\t.*" "esi before reverse-dec"
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gdb_test "reverse-step" "dec .esi.*" "reverse-step to dec esi"
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gdb_test "info reg esi" "esi *$predec_esi\t.*" "esi after reverse-dec"
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gdb_test "info reg ebp" "ebp *$preinc_ebp\t.*" "ebp before reverse-dec"
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gdb_test "reverse-step" "dec .ebp.*" "reverse-step to dec ebp"
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gdb_test "info reg ebp" "ebp *$predec_ebp\t.*" "ebp after reverse-dec"
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gdb_test "info reg esp" "esp *$preinc_esp\t.*" "esp before reverse-dec"
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gdb_test "reverse-step" "dec .esp.*" "reverse-step to dec esp"
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gdb_test "info reg esp" "esp *$predec_esp\t.*" "esp after reverse-dec"
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gdb_test "info reg ebx" "ebx *$preinc_ebx\t.*" "ebx before reverse-dec"
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gdb_test "reverse-step" "dec .ebx.*" "reverse-step to dec ebx"
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gdb_test "info reg ebx" "ebx *$predec_ebx\t.*" "ebx after reverse-dec"
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gdb_test "info reg edx" "edx *$preinc_edx\t.*" "edx before reverse-dec"
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gdb_test "reverse-step" "dec .edx.*" "reverse-step to dec edx"
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gdb_test "info reg edx" "edx *$predec_edx\t.*" "edx after reverse-dec"
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gdb_test "info reg ecx" "ecx *$preinc_ecx\t.*" "ecx before reverse-dec"
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gdb_test "reverse-step" "dec .ecx.*" "reverse-step to dec ecx"
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gdb_test "info reg ecx" "ecx *$predec_ecx\t.*" "ecx after reverse-dec"
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gdb_test "info reg eax" "eax *$preinc_eax\t.*" "eax before reverse-dec"
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gdb_test "reverse-step" "dec .eax.*" "reverse-step to dec eax"
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| 251 |
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gdb_test "info reg eax" "eax *$predec_eax\t.*" "eax after reverse-dec"
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gdb_test "info reg edi" "edi *$predec_edi\t.*" "edi before reverse-inc"
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| 254 |
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gdb_test "reverse-step" "inc .edi.*" "reverse-step to inc edi"
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| 255 |
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gdb_test "info reg edi" "edi *$preinc_edi\t.*" "edi after reverse-inc"
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| 256 |
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| 257 |
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gdb_test "info reg esi" "esi *$predec_esi\t.*" "esi before reverse-inc"
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| 258 |
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gdb_test "reverse-step" "inc .esi.*" "reverse-step to inc esi"
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| 259 |
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gdb_test "info reg esi" "esi *$preinc_esi\t.*" "esi after reverse-inc"
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| 260 |
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| 261 |
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gdb_test "info reg ebp" "ebp *$predec_ebp\t.*" "ebp before reverse-inc"
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| 262 |
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gdb_test "reverse-step" "inc .ebp.*" "reverse-step to inc ebp"
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| 263 |
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gdb_test "info reg ebp" "ebp *$preinc_ebp\t.*" "ebp after reverse-inc"
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| 264 |
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| 265 |
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gdb_test "info reg esp" "esp *$predec_esp\t.*" "esp before reverse-inc"
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| 266 |
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gdb_test "reverse-step" "inc .esp.*" "reverse-step to inc esp"
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| 267 |
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gdb_test "info reg esp" "esp *$preinc_esp\t.*" "esp after reverse-inc"
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| 268 |
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| 269 |
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gdb_test "info reg ebx" "ebx *$predec_ebx\t.*" "ebx before reverse-inc"
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| 270 |
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gdb_test "reverse-step" "inc .ebx.*" "reverse-step to inc ebx"
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| 271 |
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gdb_test "info reg ebx" "ebx *$preinc_ebx\t.*" "ebx after reverse-inc"
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| 272 |
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| 273 |
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gdb_test "info reg edx" "edx *$predec_edx\t.*" "edx before reverse-inc"
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| 274 |
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gdb_test "reverse-step" "inc .edx.*" "reverse-step to inc edx"
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| 275 |
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gdb_test "info reg edx" "edx *$preinc_edx\t.*" "edx after reverse-inc"
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| 276 |
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| 277 |
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gdb_test "info reg ecx" "ecx *$predec_ecx\t.*" "ecx before reverse-inc"
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| 278 |
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gdb_test "reverse-step" "inc .ecx.*" "reverse-step to inc ecx"
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| 279 |
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gdb_test "info reg ecx" "ecx *$preinc_ecx\t.*" "ecx after reverse-inc"
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| 280 |
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| 281 |
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gdb_test "info reg eax" "eax *$predec_eax\t.*" "eax before reverse-inc"
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| 282 |
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gdb_test "reverse-step" "inc .eax.*" "reverse-step to inc eax"
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| 283 |
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gdb_test "info reg eax" "eax *$preinc_eax\t.*" "eax after reverse-inc"
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| 284 |
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| 285 |
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