99 lines
3.3 KiB
Plaintext
99 lines
3.3 KiB
Plaintext
# Copyright 2017-2018 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 POWER8/ISA 2.07 atomic sequences beginning with
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# a lbarx/lharx/lqarx instruction and ending with a stbcx/sthcx/stqxc
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# instruction. Note that although lbarx, lharx, stbcx and sthcx instructions
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# were introduced in ISA 2.06, they were implemented only in POWER8 (ISA 2.07).
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if {![istarget "powerpc*"] || ![is_lp64_target]} {
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untested "skipping powerpc isa 207 atomic sequences test"
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return
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}
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standard_testfile .c .S
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if { [prepare_for_testing "failed to prepare" $testfile "$srcfile $srcfile2" \
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{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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global gdb_prompt inferior_exited_re srcfile srcfile2
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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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gdb_breakpoint "test_atomic_sequences" "Breakpoint $decimal at $hex" \
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"set the breakpoint at the start of the test function"
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gdb_test_multiple "continue" "Continue until lbarx/stbcx start breakpoint" {
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-re "$inferior_exited_re with code 01.\[\r\n\]+$gdb_prompt $" {
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unsupported "POWER8/ISA 2.07 atomic instructions not supported."
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return -1
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}
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-re "Continuing.*Breakpoint $decimal.*$gdb_prompt $" {
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pass "continue until test_atomic_sequences function"
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}
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}
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set bp1 [gdb_get_line_number "lbarx" "$srcfile2"]
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gdb_breakpoint "$bp1" "Breakpoint $decimal at $hex" \
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"set the breakpoint at the start of the lbarx/stbcx sequence"
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set bp2 [gdb_get_line_number "lharx" "$srcfile2"]
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gdb_breakpoint "$bp2" "Breakpoint $decimal at $hex" \
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"set the breakpoint at the start of the lharx/sthcx sequence"
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set bp3 [gdb_get_line_number "lqarx" "$srcfile2"]
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gdb_breakpoint "$bp3" "Breakpoint $decimal at $hex" \
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"set the breakpoint at the start of the lqarx/stqcx sequence"
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gdb_test continue "Continuing.*Breakpoint $decimal.*" \
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"continue until lbarx/stbcx start breakpoint"
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gdb_test nexti "bne.*1b" \
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"step through the lbarx/stbcx sequence"
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gdb_test continue "Continuing.*Breakpoint $decimal.*" \
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"continue until lharx/sthcx start breakpoint"
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gdb_test nexti "bne.*2b" \
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"step through the lharx/sthcx sequence"
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gdb_test continue "Continuing.*Breakpoint $decimal.*" \
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"continue until ldqrx/stqcx start breakpoint"
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gdb_test nexti "bne.*3b" \
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"step through the lqarx/stqcx sequence"
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}
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foreach displaced { "off" "on" } {
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with_test_prefix "displaced=$displaced" {
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do_test $displaced
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}
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}
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