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3666a04883
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
123 lines
2.9 KiB
Plaintext
123 lines
2.9 KiB
Plaintext
# Copyright (C) 2018-2021 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 <http://www.gnu.org/licenses/>.
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# This file is part of the gdb testsuite.
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# Test access to special purpose register TAR (the Target Address
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# Register). The test inferior writes to this register, we check that
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# GDB reads the same value, then write to the register the address of
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# another label. We then let the inferior continue and execute a
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# branch to TAR and check that we stop at the address that we wrote to
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# register.
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if {![istarget "powerpc*-*-linux*"]} then {
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verbose "Skipping PowerPC test for the TAR register."
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return
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}
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standard_testfile .c
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if {[build_executable "compile" $binfile $srcfile {debug}] == -1} {
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return -1
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}
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proc check_register_access { regname } {
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global gdb_prompt
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set test "$regname register access"
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gdb_test_multiple "info reg $regname" "$test" {
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-re "Invalid register.*\r\n$gdb_prompt $" {
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unsupported "$test"
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return 0
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}
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-re "\r\n$regname.*\r\n$gdb_prompt $" {
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pass "$test"
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return 1
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}
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}
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return 0
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}
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proc tar_available {} {
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global gdb_prompt
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global inferior_exited_re
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set test "TAR available to inferior"
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gdb_test_multiple "continue" "" {
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-re "Illegal instruction.*\r\n$gdb_prompt $" {
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unsupported "$test"
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return 0
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}
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-re "$inferior_exited_re normally.*$gdb_prompt $" {
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pass "$test"
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return 1
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}
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}
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return 0
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}
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# Do one pass to check if TAR is usable, system
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# software can prevent it from being used.
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with_test_prefix "check TAR access" {
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clean_restart $binfile
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if ![runto_main] {
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return
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}
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if {![check_register_access "tar"]} {
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return
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}
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if {![tar_available]} {
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return
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}
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}
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# Now do the actual test
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clean_restart $binfile
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if ![runto_main] {
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return
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}
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gdb_breakpoint [gdb_get_line_number "marker"]
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gdb_continue_to_breakpoint "continue to marker"
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set target1 [get_hexadecimal_valueof "target1" -1]
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set tar [get_hexadecimal_valueof "\$tar" -2]
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set test "TAR value from mtspr"
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if {${target1} == ${tar}} {
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pass $test
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} else {
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fail $test
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}
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set target2 [get_hexadecimal_valueof "target2" -1]
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if {$target2 == -1} {
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fail "Could not get value of target2"
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return
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}
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gdb_test_no_output "set \$tar = $target2" "set tar"
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gdb_breakpoint [gdb_get_line_number "marker 2"]
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gdb_continue_to_breakpoint "continue to new target address" ".*marker 2.*"
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