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101 lines
3.1 KiB
Plaintext
101 lines
3.1 KiB
Plaintext
# This testcase is part of GDB, the GNU debugger.
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# Copyright 2007-2018 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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# watch-thread_num.exp Test thread <thread_num> parameter for
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# watch commands.
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#
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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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# More specifically, the implementation of this test uses access
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# watchpoints, so skip it when those are not available.
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if {[skip_hw_watchpoint_access_tests]} {
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return 0
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}
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standard_testfile .c
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# What compiler are we using?
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#
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if [get_compiler_info] {
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return -1
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}
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if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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return -1
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}
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clean_restart ${binfile}
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if { ![runto main] } then {
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fail "run to main"
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return
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}
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gdb_test "watch shared_var thread 0" "Invalid thread ID: 0" "watchpoint on invalid thread"
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gdb_test "watch shared_var thread" "A syntax error in expression, near `thread'\." "invalid watch syntax"
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set bpexitline [gdb_get_line_number "all threads started"]
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gdb_breakpoint "$bpexitline"
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gdb_continue_to_breakpoint "all threads started"
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gdb_test "break loop" "Breakpoint \[0-9\].*" \
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"Set breakpoint at loop"
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gdb_test "continue" ".*Breakpoint .*loop.*" "stopped in loop"
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gdb_test_multiple "thread" "thread command" {
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-re ".*Current thread is (\[0-9\]*).*$gdb_prompt $" {
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pass "thread command"
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}
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}
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set thread_num "$expect_out(1,string)"
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delete_breakpoints
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# We use an access watchpoint rather than a write watchpoint, because
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# GDB can drop the latter when multiple threads trigger events
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# simultaneously, on targets with continuable watchpoints, such as
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# x86. See PR breakpoints/10116.
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gdb_test "awatch shared_var thread $thread_num" \
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"Hardware access \\(read/write\\) watchpoint .*: shared_var.*" \
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"watchpoint on shared variable"
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gdb_test "info breakpoint \$bpnum" \
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"stop only in thread $thread_num" \
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"info breakpoint shows watchpoint is thread-specific"
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for {set i 1} {$i <= 5} {incr i} {
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set watchpoint "Watchpoint triggered iteration $i"
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set check "Check thread that triggered iteration $i"
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set test $watchpoint
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gdb_test_multiple "continue" $test {
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-re "infrun:" {
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# Avoid timeouts when debugging GDB.
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exp_continue
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}
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-re "Hardware access \\(read/write\\) watchpoint .*: shared_var.*$gdb_prompt $" {
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pass $test
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}
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}
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gdb_test "thread" ".*Current thread is $thread_num .*" $check
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}
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