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72 lines
2.2 KiB
Plaintext
72 lines
2.2 KiB
Plaintext
# Copyright 2008-2018 Free Software Foundation, Inc.
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#
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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 <http://www.gnu.org/licenses/>.
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#
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# This file is part of the gdb testsuite.
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# Test single stepping through atomic sequences beginning with
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# a lwarx/ldarx instruction and ending with a stwcx/stdcx
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# instruction.
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if {![istarget "powerpc*"] || ![is_lp64_target]} {
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verbose "Skipping testing of powerpc64 single stepping over atomic sequences."
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return
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}
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standard_testfile .S
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if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {debug quiet}] } {
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return -1
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}
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# The test proper. DISPLACED is true if we should try with displaced
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# stepping.
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proc do_test { displaced } {
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global decimal hex
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if ![runto_main] then {
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untested "could not run to main"
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return -1
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}
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gdb_test_no_output "set displaced-stepping $displaced"
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set bp1 [gdb_get_line_number "lwarx"]
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gdb_breakpoint "$bp1" "Breakpoint $decimal at $hex" \
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"set the breakpoint at the start of the lwarx/stwcx sequence"
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set bp2 [gdb_get_line_number "ldarx"]
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gdb_breakpoint "$bp2" "Breakpoint $decimal at $hex" \
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"set the breakpoint at the start of the ldarx/stdcx sequence"
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gdb_test continue "Continuing.*Breakpoint $decimal.*" \
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"continue until lwarx/stwcx start breakpoint"
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gdb_test nexti "bne.*1b" \
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"step through the lwarx/stwcx sequence"
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gdb_test continue "Continuing.*Breakpoint $decimal.*" \
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"continue until ldarx/stdcx start breakpoint"
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gdb_test nexti "bne.*1b" \
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"step through the ldarx/stdcx sequence"
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}
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foreach displaced { "off" "on" } {
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with_test_prefix "displaced=$displaced" {
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do_test $displaced
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}
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}
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