forked from Imagelibrary/binutils-gdb
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.
130 lines
3.8 KiB
Plaintext
130 lines
3.8 KiB
Plaintext
# This testcase is part of GDB, the GNU debugger.
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# Copyright 2009-2024 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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# Check that watchpoints get propagated to all existing threads when the
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# watchpoint is created.
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set NR_THREADS 4
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set X_INCR_COUNT 10
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# This test verifies that a watchpoint is detected in the proper thread
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# so the test is only meaningful on a system with hardware watchpoints.
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require allow_hw_watchpoint_tests
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standard_testfile
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if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "additional_flags=-DNR_THREADS=$NR_THREADS -DX_INCR_COUNT=$X_INCR_COUNT"]] != "" } {
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return -1
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}
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clean_restart ${binfile}
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gdb_test_no_output "set can-use-hw-watchpoints 1" ""
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#
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# Run to `main' where we begin our tests.
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#
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if {![runto_main]} {
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return 0
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}
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gdb_test "break thread_started" \
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"Breakpoint 2 at .*: file .*${srcfile}, line .*" \
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"breakpoint on thread_started"
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# Run the program until all threads have hit thread_started.
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# We use this as the vehicle to determine when gdb is aware
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# of all threads (i.e. "info threads" would show all threads).
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set nr_started 0
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set message "run to thread_started"
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for { set i 0 } { $i < $NR_THREADS } { incr i } {
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gdb_test_multiple "continue" $message {
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-re ".*Breakpoint 2, thread_started ().*$gdb_prompt $" {
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incr nr_started
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}
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timeout {
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set i $NR_THREADS
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}
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}
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}
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if { $nr_started == $NR_THREADS } {
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pass "all threads started"
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} else {
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fail "all threads started"
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# No point in continuing.
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return -1
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}
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# Check that multiple uses of the 'thread' keyword will give an error.
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gdb_test "watch x thread 1 thread 2" "You can specify only one thread\\."
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# Watch X, it will be modified by all threads.
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# We want this watchpoint to be set *after* all threads are running.
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gdb_test "watch x" "Hardware watchpoint 3: x"
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# Now that the watchpoint is set, we can let the threads increment X.
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gdb_test_no_output "set var test_ready = 1"
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# While debugging.
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#gdb_test_no_output "set debug infrun 1"
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set x_inc_line [gdb_get_line_number "X increment"]
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set x_thread_loc "thread_function \\\(arg=.*\\\) at .*watchthreads.c:$x_inc_line"
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# X is incremented under a mutex, so we should get NR_THREADS * X_INCR_COUNT
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# hits.
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set limit [expr $NR_THREADS*$X_INCR_COUNT]
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set x_count 0
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set done 0
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set message "x watch loop"
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for {set i 0} {!$done && $i < $limit} {incr i} {
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set test_flag 0
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gdb_test_multiple "continue" $message {
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-re "(.*Hardware watchpoint.*)$gdb_prompt $" {
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set string $expect_out(1,string)
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if [regexp "Hardware watchpoint 3: x\[^\r\]*\r\[^\r\]*\r\[^\r\]*Old value = $x_count\[^\r\]*\r\[^\r\]*New value = [expr $x_count+1]\r" $string] {
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incr x_count
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set test_flag 1
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} else {
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# We test for new value = old value + 1 each iteration.
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# This can fail due to gdb/10116.
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# This is caught after the loop exits.
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}
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}
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-re "The program is not being run.*$gdb_prompt $" {
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fail "$message (program terminated)"
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}
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}
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# If we fail above, don't bother continuing loop.
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if { $test_flag == 0 } {
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set done 1
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}
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}
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if { $i == $limit } {
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pass "all threads incremented x"
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} else {
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kfail "gdb/10116" "gdb can drop watchpoints in multithreaded app"
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}
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