This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG3266b117147d: [lldb] [llgs] Add test for resuming via c in
multiprocess scenarios (authored by mgorny).
Herald added a project: LLDB.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D127755/new/
https://reviews.llvm.org/D127755
Files:
lldb/test/API/tools/lldb-server/TestGdbRemoteFork.py
lldb/test/API/tools/lldb-server/main.cpp
Index: lldb/test/API/tools/lldb-server/main.cpp
===================================================================
--- lldb/test/API/tools/lldb-server/main.cpp
+++ lldb/test/API/tools/lldb-server/main.cpp
@@ -1,4 +1,5 @@
#include <atomic>
+#include <cassert>
#include <chrono>
#include <cstdlib>
#include <cstring>
@@ -323,8 +324,7 @@
func_p();
#if !defined(_WIN32) && !defined(TARGET_OS_WATCH) && !defined(TARGET_OS_TV)
} else if (arg == "fork") {
- if (fork() == 0)
- _exit(0);
+ assert (fork() != -1);
} else if (arg == "vfork") {
if (vfork() == 0)
_exit(0);
Index: lldb/test/API/tools/lldb-server/TestGdbRemoteFork.py
===================================================================
--- lldb/test/API/tools/lldb-server/TestGdbRemoteFork.py
+++ lldb/test/API/tools/lldb-server/TestGdbRemoteFork.py
@@ -353,3 +353,81 @@
@add_test_categories(["fork"])
def test_vkill_both(self):
self.vkill_test(kill_parent=True, kill_child=True)
+
+ def resume_one_test(self, run_order):
+ self.build()
+ self.prep_debug_monitor_and_inferior(inferior_args=["fork", "trap"])
+ self.add_qSupported_packets(["multiprocess+",
+ "fork-events+"])
+ ret = self.expect_gdbremote_sequence()
+ self.assertIn("fork-events+", ret["qSupported_response"])
+ self.reset_test_sequence()
+
+ # continue and expect fork
+ self.test_sequence.add_log_lines([
+ "read packet: $c#00",
+ {"direction": "send", "regex": self.fork_regex.format("fork"),
+ "capture": self.fork_capture},
+ ], True)
+ ret = self.expect_gdbremote_sequence()
+ parent_pid = ret["parent_pid"]
+ parent_tid = ret["parent_tid"]
+ child_pid = ret["child_pid"]
+ child_tid = ret["child_tid"]
+ self.reset_test_sequence()
+
+ parent_expect = [
+ "[$]T05thread:p{}.{};.*".format(parent_pid, parent_tid),
+ "[$]W00;process:{}#.*".format(parent_pid),
+ ]
+ child_expect = [
+ "[$]T05thread:p{}.{};.*".format(child_pid, child_tid),
+ "[$]W00;process:{}#.*".format(child_pid),
+ ]
+
+ for x in run_order:
+ if x == "parent":
+ pidtid = (parent_pid, parent_tid)
+ expect = parent_expect.pop(0)
+ elif x == "child":
+ pidtid = (child_pid, child_tid)
+ expect = child_expect.pop(0)
+ else:
+ assert False, "unexpected x={}".format(x)
+
+ self.test_sequence.add_log_lines([
+ # continue the selected process
+ "read packet: $Hcp{}.{}#00".format(*pidtid),
+ "send packet: $OK#00",
+ "read packet: $c#00",
+ {"direction": "send", "regex": expect},
+ ], True)
+ # if at least one process remained, check both PIDs
+ if parent_expect or child_expect:
+ self.test_sequence.add_log_lines([
+ "read packet: $Hgp{}.{}#00".format(parent_pid, parent_tid),
+ "send packet: ${}#00".format("OK" if parent_expect else "Eff"),
+ "read packet: $Hgp{}.{}#00".format(child_pid, child_tid),
+ "send packet: ${}#00".format("OK" if child_expect else "Eff"),
+ ], True)
+ self.expect_gdbremote_sequence()
+
+ @add_test_categories(["fork"])
+ def test_c_parent(self):
+ self.resume_one_test(run_order=["parent", "parent"])
+
+ @add_test_categories(["fork"])
+ def test_c_child(self):
+ self.resume_one_test(run_order=["child", "child"])
+
+ @add_test_categories(["fork"])
+ def test_c_parent_then_child(self):
+ self.resume_one_test(run_order=["parent", "parent", "child", "child"])
+
+ @add_test_categories(["fork"])
+ def test_c_child_then_parent(self):
+ self.resume_one_test(run_order=["child", "child", "parent", "parent"])
+
+ @add_test_categories(["fork"])
+ def test_c_interspersed(self):
+ self.resume_one_test(run_order=["parent", "child", "parent", "child"])
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