Adding upstream version 1.20.14.upstream/1.20.14upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

6 files changed, 206 insertions, 0 deletions

diff --git a/src/runtime/testdata/testwinlib/main.c b/src/runtime/testdata/testwinlib/main.c
new file mode 100644
index 0000000..c3fe3cb
--- /dev/null
+++ b/src/runtime/testdata/testwinlib/main.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include <windows.h>
+#include "testwinlib.h"
+
+int exceptionCount;
+int continueCount;
+LONG WINAPI customExceptionHandlder(struct _EXCEPTION_POINTERS *ExceptionInfo)
+{
+    if (ExceptionInfo->ExceptionRecord->ExceptionCode == EXCEPTION_BREAKPOINT)
+    {
+        exceptionCount++;
+        // prepare context to resume execution
+        CONTEXT *c = ExceptionInfo->ContextRecord;
+        c->Rip = *(ULONG_PTR *)c->Rsp;
+        c->Rsp += 8;
+        return EXCEPTION_CONTINUE_EXECUTION;
+    }
+    return EXCEPTION_CONTINUE_SEARCH;
+}
+LONG WINAPI customContinueHandlder(struct _EXCEPTION_POINTERS *ExceptionInfo)
+{
+    if (ExceptionInfo->ExceptionRecord->ExceptionCode == EXCEPTION_BREAKPOINT)
+    {
+        continueCount++;
+        return EXCEPTION_CONTINUE_EXECUTION;
+    }
+    return EXCEPTION_CONTINUE_SEARCH;
+}
+
+void throwFromC()
+{
+    DebugBreak();
+}
+int main()
+{
+    // simulate a "lazily" attached debugger, by calling some go code before attaching the exception/continue handler
+    Dummy();
+    exceptionCount = 0;
+    continueCount = 0;
+    void *exceptionHandlerHandle = AddVectoredExceptionHandler(0, customExceptionHandlder);
+    if (NULL == exceptionHandlerHandle)
+    {
+        printf("cannot add vectored exception handler\n");
+        fflush(stdout);
+        return 2;
+    }
+    void *continueHandlerHandle = AddVectoredContinueHandler(0, customContinueHandlder);
+    if (NULL == continueHandlerHandle)
+    {
+        printf("cannot add vectored continue handler\n");
+        fflush(stdout);
+        return 2;
+    }
+    CallMeBack(throwFromC);
+    RemoveVectoredContinueHandler(continueHandlerHandle);
+    RemoveVectoredExceptionHandler(exceptionHandlerHandle);
+    printf("exceptionCount: %d\ncontinueCount: %d\n", exceptionCount, continueCount);
+    fflush(stdout);
+    return 0;
+}
diff --git a/src/runtime/testdata/testwinlib/main.go b/src/runtime/testdata/testwinlib/main.go
new file mode 100644
index 0000000..407331b
--- /dev/null
+++ b/src/runtime/testdata/testwinlib/main.go
@@ -0,0 +1,31 @@
+//go:build windows && cgo
+// +build windows,cgo
+
+package main
+
+// #include <windows.h>
+// typedef void(*callmeBackFunc)();
+// static void bridgeCallback(callmeBackFunc callback) {
+//	callback();
+//}
+import "C"
+
+// CallMeBack call backs C code.
+//
+//export CallMeBack
+func CallMeBack(callback C.callmeBackFunc) {
+	C.bridgeCallback(callback)
+}
+
+// Dummy is called by the C code before registering the exception/continue handlers simulating a debugger.
+// This makes sure that the Go runtime's lastcontinuehandler is reached before the C continue handler and thus,
+// validate that it does not crash the program before another handler could take an action.
+// The idea here is to reproduce what happens when you attach a debugger to a running program.
+// It also simulate the behavior of the .Net debugger, which register its exception/continue handlers lazily.
+//
+//export Dummy
+func Dummy() int {
+	return 42
+}
+
+func main() {}
diff --git a/src/runtime/testdata/testwinlibsignal/dummy.go b/src/runtime/testdata/testwinlibsignal/dummy.go
new file mode 100644
index 0000000..e610f15
--- /dev/null
+++ b/src/runtime/testdata/testwinlibsignal/dummy.go
@@ -0,0 +1,13 @@
+//go:build windows
+// +build windows
+
+package main
+
+import "C"
+
+//export Dummy
+func Dummy() int {
+	return 42
+}
+
+func main() {}
diff --git a/src/runtime/testdata/testwinlibsignal/main.c b/src/runtime/testdata/testwinlibsignal/main.c
new file mode 100644
index 0000000..37f2482
--- /dev/null
+++ b/src/runtime/testdata/testwinlibsignal/main.c
@@ -0,0 +1,57 @@
+#include <windows.h>
+#include <stdio.h>
+
+HANDLE waitForCtrlBreakEvent;
+
+BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
+{
+    switch (fdwCtrlType)
+    {
+    case CTRL_BREAK_EVENT:
+        SetEvent(waitForCtrlBreakEvent);
+        return TRUE;
+    default:
+        return FALSE;
+    }
+}
+
+int main(void)
+{
+    waitForCtrlBreakEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
+    if (!waitForCtrlBreakEvent) {
+        fprintf(stderr, "ERROR: Could not create event\n");
+        return 1;
+    }
+
+    if (!SetConsoleCtrlHandler(CtrlHandler, TRUE))
+    {
+        fprintf(stderr, "ERROR: Could not set control handler\n");
+        return 1;
+    }
+
+    // The library must be loaded after the SetConsoleCtrlHandler call
+    // so that the library handler registers after the main program.
+    // This way the library handler gets called first.
+    HMODULE dummyDll = LoadLibrary("dummy.dll");
+    if (!dummyDll) {
+        fprintf(stderr, "ERROR: Could not load dummy.dll\n");
+        return 1;
+    }
+
+    // Call the Dummy function so that Go initialization completes, since
+    // all cgo entry points call out to _cgo_wait_runtime_init_done.
+    if (((int(*)(void))GetProcAddress(dummyDll, "Dummy"))() != 42) {
+        fprintf(stderr, "ERROR: Dummy function did not return 42\n");
+        return 1;
+    }
+
+    printf("ready\n");
+    fflush(stdout);
+
+    if (WaitForSingleObject(waitForCtrlBreakEvent, 5000) != WAIT_OBJECT_0) {
+        fprintf(stderr, "FAILURE: No signal received\n");
+        return 1;
+    }
+
+    return 0;
+}
diff --git a/src/runtime/testdata/testwinlibthrow/main.go b/src/runtime/testdata/testwinlibthrow/main.go
new file mode 100644
index 0000000..ce0c92f
--- /dev/null
+++ b/src/runtime/testdata/testwinlibthrow/main.go
@@ -0,0 +1,19 @@
+package main

+

+import (

+	"os"

+	"syscall"

+)

+

+func main() {

+	dll := syscall.MustLoadDLL("veh.dll")

+	RaiseNoExcept := dll.MustFindProc("RaiseNoExcept")

+	ThreadRaiseNoExcept := dll.MustFindProc("ThreadRaiseNoExcept")

+

+	thread := len(os.Args) > 1 && os.Args[1] == "thread"

+	if !thread {

+		RaiseNoExcept.Call()

+	} else {

+		ThreadRaiseNoExcept.Call()

+	}

+}

diff --git a/src/runtime/testdata/testwinlibthrow/veh.c b/src/runtime/testdata/testwinlibthrow/veh.c
new file mode 100644
index 0000000..08c1f9e
--- /dev/null
+++ b/src/runtime/testdata/testwinlibthrow/veh.c
@@ -0,0 +1,26 @@
+//go:build ignore

+

+#include <windows.h>

+

+__declspec(dllexport)

+void RaiseNoExcept(void)

+{

+    RaiseException(42, 0, 0, 0);

+}

+

+static DWORD WINAPI ThreadRaiser(void* Context)

+{

+    RaiseNoExcept();

+    return 0;

+}

+

+__declspec(dllexport)

+void ThreadRaiseNoExcept(void)

+{

+    HANDLE thread = CreateThread(0, 0, ThreadRaiser,  0, 0, 0);

+    if (0 != thread)

+    {

+        WaitForSingleObject(thread, INFINITE);

+        CloseHandle(thread);

+    }

+}