
This commit is the result of running the gdb/copyright.py script, which automated the update of the copyright year range for all source files managed by the GDB project to be updated to include year 2023.
124 lines
3.6 KiB
Text
124 lines
3.6 KiB
Text
# Copyright 2016-2023 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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# Test a thread is doing step-over a syscall instruction which is exit,
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# and GDBserver should cleanup its state of step-over properly.
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set syscall_insn ""
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# Define the syscall instruction for each target.
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if { [istarget "i\[34567\]86-*-linux*"] || [istarget "x86_64-*-linux*"] } {
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set syscall_insn "\[ \t\](int|syscall|sysenter)\[ \t\]*"
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} elseif { [istarget "aarch64*-*-linux*"] || [istarget "arm*-*-linux*"] } {
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set syscall_insn "\[ \t\](swi|svc)\[ \t\]"
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} else {
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unsupported "unknown syscall instruction"
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return -1
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}
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if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
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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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gdb_test "set follow-fork-mode child"
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gdb_test "set detach-on-fork off"
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# Step 1, find the syscall instruction address.
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gdb_test "break _exit" "Breakpoint $decimal at .*"
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# Hit the breakpoint on _exit. The address of syscall insn is recorded.
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gdb_test "continue" \
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"Continuing\\..*Breakpoint $decimal.*_exit \\(.*\\).*" \
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"continue to exit"
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gdb_test "display/i \$pc" ".*"
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# Single step until we see a syscall insn or we reach the
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# upper bound of loop iterations.
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set msg "find syscall insn in exit"
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set steps 0
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set max_steps 1000
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gdb_test_multiple "stepi" $msg {
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-re ".*$syscall_insn.*$gdb_prompt $" {
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pass $msg
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}
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-re "x/i .*=>.*\r\n$gdb_prompt $" {
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incr steps
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if {$steps == $max_steps} {
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fail $msg
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} else {
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send_gdb "stepi\n"
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exp_continue
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}
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}
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}
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if {$steps == $max_steps} {
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return
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}
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# Remove the display
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gdb_test_no_output "delete display 1"
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set syscall_insn_addr [get_hexadecimal_valueof "\$pc" "0"]
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gdb_test "continue" "exited normally.*" "continue to end, first time"
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gdb_test "inferior 1" ".*Switching to inferior 1.*" \
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"switch back to inferior 1, first time"
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delete_breakpoints
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gdb_test "break marker"
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gdb_test "continue" "Continuing\\..*Breakpoint $bkptno_num_re, .*" \
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"continue to marker, first time"
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# Step 2, create a breakpoint which evaluates false, and force it
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# evaluated on the target side.
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set test "set breakpoint condition-evaluation target"
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gdb_test_multiple $test $test {
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-re "warning: Target does not support breakpoint condition evaluation.\r\nUsing host evaluation mode instead.\r\n$gdb_prompt $" {
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# Target doesn't support breakpoint condition evaluation
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# on its side, but it is no harm to run the test.
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}
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-re "^$test\r\n$gdb_prompt $" {
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}
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}
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gdb_test "break \*$syscall_insn_addr if main == 0" \
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"Breakpoint \[0-9\]* at .*" \
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"set conditional break at syscall address"
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# Resume the child process, and the step-over is being done.
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gdb_test "continue" "exited normally.*" "continue to end, second time"
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gdb_test "inferior 1" ".*Switching to inferior 1.*" \
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"switch back to inferior 1, second time"
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# Switch back to the parent process, continue to the marker to
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# test GDBserver's state is still correct.
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gdb_test "continue" "Continuing\\..*Breakpoint $bkptno_numopt_re, .*" \
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"continue to marker, second time"
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