Jacek Caban : kernel32/tests: Add exception handling race test.
Alexandre Julliard
julliard at winehq.org
Tue Aug 27 15:28:16 CDT 2019
Module: wine
Branch: master
Commit: 42a9b58b066ff374148cee088ac57cfba46e3b76
URL: https://source.winehq.org/git/wine.git/?a=commit;h=42a9b58b066ff374148cee088ac57cfba46e3b76
Author: Jacek Caban <jacek at codeweavers.com>
Date: Mon Aug 26 19:37:20 2019 +0200
kernel32/tests: Add exception handling race test.
Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/kernel32/tests/debugger.c | 83 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 83 insertions(+)
diff --git a/dlls/kernel32/tests/debugger.c b/dlls/kernel32/tests/debugger.c
index 90868cd..c9da131 100644
--- a/dlls/kernel32/tests/debugger.c
+++ b/dlls/kernel32/tests/debugger.c
@@ -311,6 +311,16 @@ static void set_thread_context_(unsigned line, struct debugger_context *ctx, str
ok_(__FILE__,line)(ret, "SetThreadContext failed: %u\n", GetLastError());
}
+static void fetch_process_context(struct debugger_context *ctx)
+{
+ struct debuggee_thread *thread;
+
+ WINE_RB_FOR_EACH_ENTRY(thread, &ctx->threads, struct debuggee_thread, entry)
+ {
+ fetch_thread_context(thread);
+ }
+}
+
#define WAIT_EVENT_TIMEOUT 20000
#define POLL_EVENT_TIMEOUT 200
@@ -1259,6 +1269,7 @@ static void test_debugger(const char *argv0)
STARTUPINFOA si;
HANDLE event, thread;
BYTE *mem, buf[4096], *proc_code, *thread_proc, byte;
+ unsigned int i, worker_cnt, exception_cnt;
struct debuggee_thread *debuggee_thread;
char *cmd;
BOOL ret;
@@ -1346,6 +1357,78 @@ static void test_debugger(const char *argv0)
}
else win_skip("call_debug_service_code not supported on this architecture\n");
+ if (sizeof(loop_code) > 1 && broken(1) /* FIXME: broken in Wine */)
+ {
+ memset(buf, OP_BP, sizeof(buf));
+ memcpy(proc_code, &loop_code, sizeof(loop_code));
+ ret = WriteProcessMemory(pi.hProcess, mem, buf, sizeof(buf), NULL);
+ ok(ret, "WriteProcessMemory failed: %u\n", GetLastError());
+
+ ctx.thread_tag = 1;
+
+ worker_cnt = 20;
+ for (i = 0; i < worker_cnt; i++)
+ {
+ thread = CreateRemoteThread(pi.hProcess, NULL, 0, (void*)thread_proc, NULL, 0, NULL);
+ ok(thread != NULL, "CreateRemoteThread failed: %u\n", GetLastError());
+
+ next_event(&ctx, 20000);
+ ok(ctx.ev.dwDebugEventCode == CREATE_THREAD_DEBUG_EVENT, "dwDebugEventCode = %d\n", ctx.ev.dwDebugEventCode);
+
+ ret = CloseHandle(thread);
+ ok(ret, "CloseHandle failed, last error %d.\n", GetLastError());
+ }
+
+ byte = OP_BP;
+ ret = WriteProcessMemory(pi.hProcess, thread_proc + 1, &byte, 1, NULL);
+ ok(ret, "WriteProcessMemory failed: %u\n", GetLastError());
+
+ expect_breakpoint_exception(&ctx, thread_proc + 1);
+ exception_cnt = 1;
+
+ debuggee_thread = ctx.current_thread;
+ fetch_process_context(&ctx);
+ ok(get_ip(&ctx.current_thread->ctx) == thread_proc + 2, "unexpected instruction pointer %p\n",
+ get_ip(&ctx.current_thread->ctx));
+
+ byte = 0xc3; /* ret */
+ ret = WriteProcessMemory(pi.hProcess, thread_proc + 1, &byte, 1, NULL);
+ ok(ret, "WriteProcessMemory failed: %u\n", GetLastError());
+
+ for (;;)
+ {
+ DEBUG_EVENT ev;
+
+ /* even when there are more pending events, they are not reported until current event is continued */
+ ret = WaitForDebugEvent(&ev, 10);
+ ok(GetLastError() == ERROR_SEM_TIMEOUT, "WaitForDebugEvent returned %x(%u)\n", ret, GetLastError());
+
+ next_event(&ctx, 100);
+ if (ctx.ev.dwDebugEventCode != EXCEPTION_DEBUG_EVENT) break;
+ trace("exception at %p in thread %04x\n", ctx.ev.u.Exception.ExceptionRecord.ExceptionAddress, ctx.ev.dwThreadId);
+ ok(ctx.ev.u.Exception.ExceptionRecord.ExceptionCode == EXCEPTION_BREAKPOINT, "ExceptionCode = %x\n",
+ ctx.ev.u.Exception.ExceptionRecord.ExceptionCode);
+ ok(ctx.ev.u.Exception.ExceptionRecord.ExceptionAddress == thread_proc + 1,
+ "ExceptionAddress = %p\n", ctx.ev.u.Exception.ExceptionRecord.ExceptionAddress);
+ ok(get_ip(&ctx.current_thread->ctx) == thread_proc + 2
+ || broken(get_ip(&ctx.current_thread->ctx) == thread_proc), /* sometimes observed on win10 */
+ "unexpected instruction pointer %p\n",
+ get_ip(&ctx.current_thread->ctx));
+ exception_cnt++;
+ }
+
+ trace("received %u exceptions\n", exception_cnt);
+
+ for (;;)
+ {
+ ok(ctx.ev.dwDebugEventCode == EXIT_THREAD_DEBUG_EVENT
+ || broken(ctx.ev.dwDebugEventCode == CREATE_THREAD_DEBUG_EVENT), /* sometimes happens on vista */
+ "dwDebugEventCode = %d\n", ctx.ev.dwDebugEventCode);
+ if (ctx.ev.dwDebugEventCode == EXIT_THREAD_DEBUG_EVENT && !--worker_cnt) break;
+ next_event(&ctx, 2000);
+ }
+ }
+
SetEvent(event);
do
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