1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
110 lines
3 KiB
Text
110 lines
3 KiB
Text
# Copyright 2015-2024 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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standard_testfile
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require {is_any_target i?86-*-* x86_64-*-*}
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set default_pkru_re 0x0
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if { [istarget *-*-linux*] } {
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# Starting with v4.9, the linux kernel contains commit acd547b29880
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# ("x86/pkeys: Default to a restrictive init PKRU"), which sets the
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# pkru register to 0x55555554 by default.
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set default_pkru_re (0x0|0x55555554)
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}
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set comp_flags "-I${srcdir}/../nat/"
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if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} \
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[list debug additional_flags=${comp_flags}]] } {
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untested "failed to compile x86 PKEYS test."
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return -1
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}
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if ![runto_main] {
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return -1
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}
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set supports_pkru 0
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set test "probe PKRU support"
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gdb_test_multiple "print have_pkru()" $test {
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-re ".. = 1\r\n$gdb_prompt $" {
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pass $test
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set supports_pkru 1
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}
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-re ".. = 0\r\n$gdb_prompt $" {
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pass $test
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}
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}
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if { !$supports_pkru } {
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unsupported "processor does not support protection key feature."
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return
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}
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# Linux kernel versions 5.14.0 to 6.1.x contain a regression related to writing
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# the PKRU using ptrace, see commit 4a804c4f8356 ("x86/fpu: Allow PKRU to be
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# (once again) written by ptrace.").
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set have_xfail 0
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set v [linux_kernel_version]
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if { $v != {} } {
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set have_xfail \
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[expr \
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[version_compare [list 5 14 0] <= $v] \
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&& [version_compare $v < [list 6 2 0]]]
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}
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# Test pkru register at startup
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gdb_test "print /x \$pkru" "= $default_pkru_re" "pkru register"
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# Read values from pseudo registers.
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gdb_breakpoint [ gdb_get_line_number "break here 1" ]
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gdb_continue_to_breakpoint "break here 1" ".*break here 1.*"
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set val1 0x12345678
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gdb_test "info register pkru" ".*pkru.*$val1.*" "read pkru register"
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set val2 0x44444444
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gdb_test "print /x \$pkru = $val2" "= $val2" "set pkru value"
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gdb_test_multiple "info register pkru" "read value after setting value" {
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-re -wrap ".*pkru.*$val2.*" {
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pass $gdb_test_name
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}
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-re -wrap ".*pkru.*$val1.*" {
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if { $have_xfail } {
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xfail $gdb_test_name
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} else {
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fail $gdb_test_name
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}
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}
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}
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gdb_breakpoint [ gdb_get_line_number "break here 2" ]
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gdb_continue_to_breakpoint "break here 2" ".*break here 2.*"
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gdb_test_multiple "print /x rd_value" "variable after reading pkru" {
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-re -wrap "= $val2" {
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pass $gdb_test_name
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}
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-re -wrap "= $val1" {
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if { $have_xfail } {
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xfail $gdb_test_name
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} else {
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fail $gdb_test_name
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}
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}
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}
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