Files
binutils-gdb/gdb/testsuite/gdb.base/watch-bitfields.exp
Andrew Burgess 1d506c26d9 Update copyright year range in header of all files managed by GDB
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.
2024-01-12 15:49:57 +00:00

110 lines
3.5 KiB
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# Copyright 2014-2024 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This file is part of the gdb testsuite
# The allow_hw_watchpoint_tests checks if watchpoints are supported by the
# processor. On PowerPC, the check runs a small test program under gdb
# to determine if the Power processor supports HW watchpoints. The check
# must be done before starting the test so as to not disrupt the execution
# of the actual test.
# Disable hardware watchpoints if the target does not support them.
set allow_hw_watchpoint_tests_p [allow_hw_watchpoint_tests]
standard_testfile
if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
return -1
}
# Set a watchpoint watching EXPR.
proc watch { expr } {
global decimal
set expr_re [string_to_regexp $expr]
gdb_test "watch $expr" \
"\(Hardware \)?\[Ww\]atchpoint $decimal: $expr_re"
}
# Continue inferior execution, expecting the watchpoint EXPR to be triggered
# having old value OLD and new value NEW.
proc expect_watchpoint { expr old new } {
with_test_prefix "$expr: $old->$new" {
set expr_re [string_to_regexp $expr]
gdb_test "print $expr" "\\$\\d+ = $old" "print expression before"
gdb_test "continue" "$expr_re\\s.*Old value = $old\\s+New value = $new\\s.*"
gdb_test "print $expr" "\\$\\d+ = $new" "print expression after"
}
}
# Check that -location watchpoints against bitfields trigger properly.
proc test_watch_location {} {
with_test_prefix "-location watch against bitfields" {
if {![runto_main]} {
return -1
}
watch "-location q.a"
watch "-location q.e"
expect_watchpoint "q.a" 0 1
expect_watchpoint "q.e" 0 5
expect_watchpoint "q.a" 1 0
expect_watchpoint "q.e" 5 4
# It'll execute a large amount of code with software watchpoint
# enabled, which means GDB will single stepping all the way
# through til the inferior exits. Increase the timeout by a
# factor of 4.
with_timeout_factor 4 {
gdb_continue_to_end
}
}
}
# Check that regular watchpoints against expressions involving
# bitfields trigger properly.
proc test_regular_watch {} {
with_test_prefix "regular watch against bitfields" {
if {![runto_main]} {
return -1
}
watch "q.d + q.f + q.g"
expect_watchpoint "q.d + q.f + q.g" 0 4
expect_watchpoint "q.d + q.f + q.g" 4 10
expect_watchpoint "q.d + q.f + q.g" 10 3
expect_watchpoint "q.d + q.f + q.g" 3 2
expect_watchpoint "q.d + q.f + q.g" 2 1
expect_watchpoint "q.d + q.f + q.g" 1 0
# It'll execute a large amount of code with software watchpoint
# enabled, which means GDB will single stepping all the way
# through til the inferior exits. Increase the timeout by a
# factor of 4.
with_timeout_factor 4 {
gdb_continue_to_end
}
}
}
# Disable hardware watchpoints if the target does not support them.
if {!$allow_hw_watchpoint_tests_p} {
gdb_test_no_output "set can-use-hw-watchpoints 0" ""
}
test_watch_location
test_regular_watch