debugger.c

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/*
 * Unit tests for the debugger facility
 *
 * Copyright (c) 2007 Francois Gouget for CodeWeavers
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <stdio.h>
#include <assert.h>

#include <windows.h>
#include <winternl.h>
#include <winreg.h>
#include "wine/test.h"

#ifndef STATUS_DEBUGGER_INACTIVE
#define STATUS_DEBUGGER_INACTIVE         ((NTSTATUS) 0xC0000354)
#endif

#define child_ok (winetest_set_location(__FILE__, __LINE__), 0) ? (void)0 : test_child_ok

static int    myARGC;
static char** myARGV;

static BOOL (WINAPI *pCheckRemoteDebuggerPresent)(HANDLE,PBOOL);
static BOOL (WINAPI *pDebugActiveProcessStop)(DWORD);
static BOOL (WINAPI *pDebugSetProcessKillOnExit)(BOOL);
static BOOL (WINAPI *pIsDebuggerPresent)(void);

static LONG child_failures;

static void WINETEST_PRINTF_ATTR(2, 3) test_child_ok(int condition, const char *msg, ...)
{
    va_list valist;

    va_start(valist, msg);
    winetest_vok(condition, msg, valist);
    va_end(valist);
    if (!condition) ++child_failures;
}

/* Copied from the process test */
static void get_file_name(char* buf)
{
    char path[MAX_PATH];

    buf[0] = '\0';
    GetTempPathA(sizeof(path), path);
    GetTempFileNameA(path, "wt", 0, buf);
}

typedef struct tag_reg_save_value
{
    const char *name;
    DWORD type;
    BYTE *data;
    DWORD size;
} reg_save_value;

static DWORD save_value(HKEY hkey, const char *value, reg_save_value *saved)
{
    DWORD ret;
    saved->name=value;
    saved->data=0;
    saved->size=0;
    ret=RegQueryValueExA(hkey, value, NULL, &saved->type, NULL, &saved->size);
    if (ret == ERROR_SUCCESS)
    {
        saved->data=HeapAlloc(GetProcessHeap(), 0, saved->size);
        RegQueryValueExA(hkey, value, NULL, &saved->type, saved->data, &saved->size);
    }
    return ret;
}

static void restore_value(HKEY hkey, reg_save_value *saved)
{
    if (saved->data)
    {
        RegSetValueExA(hkey, saved->name, 0, saved->type, saved->data, saved->size);
        HeapFree(GetProcessHeap(), 0, saved->data);
    }
    else
        RegDeleteValueA(hkey, saved->name);
}

static void get_events(const char* name, HANDLE *start_event, HANDLE *done_event)
{
    const char* basename;
    char* event_name;

    basename=strrchr(name, '\\');
    basename=(basename ? basename+1 : name);
    event_name=HeapAlloc(GetProcessHeap(), 0, 6+strlen(basename)+1);

    sprintf(event_name, "start_%s", basename);
    *start_event=CreateEventA(NULL, 0,0, event_name);
    sprintf(event_name, "done_%s", basename);
    *done_event=CreateEventA(NULL, 0,0, event_name);
    HeapFree(GetProcessHeap(), 0, event_name);
}

static void save_blackbox(const char* logfile, void* blackbox, int size)
{
    HANDLE hFile;
    DWORD written;

    hFile=CreateFileA(logfile, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, 0);
    if (hFile == INVALID_HANDLE_VALUE)
        return;
    WriteFile(hFile, blackbox, size, &written, NULL);
    CloseHandle(hFile);
}

static int load_blackbox(const char* logfile, void* blackbox, int size)
{
    HANDLE hFile;
    DWORD read;
    BOOL ret;

    hFile=CreateFileA(logfile, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, 0);
    if (hFile == INVALID_HANDLE_VALUE)
    {
        ok(0, "unable to open '%s'\n", logfile);
        return 0;
    }
    SetLastError(0xdeadbeef);
    ret=ReadFile(hFile, blackbox, size, &read, NULL);
    ok(ret, "ReadFile failed: %d\n", GetLastError());
    ok(read == size, "wrong size for '%s': read=%d\n", logfile, read);
    CloseHandle(hFile);
    return 1;
}

typedef struct
{
    DWORD pid;
} crash_blackbox_t;

static void doCrash(int argc,  char** argv)
{
    volatile char* p;

    /* make sure the exception gets to the debugger */
    SetErrorMode( 0 );
    SetUnhandledExceptionFilter( NULL );

    if (argc >= 4)
    {
        crash_blackbox_t blackbox;
        blackbox.pid=GetCurrentProcessId();
        save_blackbox(argv[3], &blackbox, sizeof(blackbox));
    }

    /* Just crash */
    trace("child: crashing...\n");
    p=NULL;
    *p=0;
}

typedef struct
{
    int argc;
    DWORD pid;
    BOOL debug_rc;
    DWORD debug_err;
    BOOL attach_rc;
    DWORD attach_err;
    BOOL nokill_rc;
    DWORD nokill_err;
    BOOL detach_rc;
    DWORD detach_err;
} debugger_blackbox_t;

static void doDebugger(int argc, char** argv)
{
    const char* logfile;
    debugger_blackbox_t blackbox;
    HANDLE start_event = 0, done_event = 0, debug_event;

    blackbox.argc=argc;
    logfile=(argc >= 4 ? argv[3] : NULL);
    blackbox.pid=(argc >= 5 ? atol(argv[4]) : 0);

    blackbox.attach_err=0;
    if (strstr(myARGV[2], "attach"))
    {
        blackbox.attach_rc=DebugActiveProcess(blackbox.pid);
        if (!blackbox.attach_rc)
            blackbox.attach_err=GetLastError();
    }
    else
        blackbox.attach_rc=TRUE;

    debug_event=(argc >= 6 ? (HANDLE)(INT_PTR)atol(argv[5]) : NULL);
    blackbox.debug_err=0;
    if (debug_event && strstr(myARGV[2], "event"))
    {
        blackbox.debug_rc=SetEvent(debug_event);
        if (!blackbox.debug_rc)
            blackbox.debug_err=GetLastError();
    }
    else
        blackbox.debug_rc=TRUE;

    if (logfile)
    {
        get_events(logfile, &start_event, &done_event);
    }

    if (strstr(myARGV[2], "order"))
    {
        trace("debugger: waiting for the start signal...\n");
        WaitForSingleObject(start_event, INFINITE);
    }

    blackbox.nokill_err=0;
    if (strstr(myARGV[2], "nokill"))
    {
        blackbox.nokill_rc=pDebugSetProcessKillOnExit(FALSE);
        if (!blackbox.nokill_rc)
            blackbox.nokill_err=GetLastError();
    }
    else
        blackbox.nokill_rc=TRUE;

    blackbox.detach_err=0;
    if (strstr(myARGV[2], "detach"))
    {
        blackbox.detach_rc=pDebugActiveProcessStop(blackbox.pid);
        if (!blackbox.detach_rc)
            blackbox.detach_err=GetLastError();
    }
    else
        blackbox.detach_rc=TRUE;

    if (logfile)
    {
        save_blackbox(logfile, &blackbox, sizeof(blackbox));
    }
    trace("debugger: done debugging...\n");
    SetEvent(done_event);

    /* Just exit with a known value */
    ExitProcess(0xdeadbeef);
}

static void crash_and_debug(HKEY hkey, const char* argv0, const char* dbgtasks)
{
    static BOOL skip_crash_and_debug = FALSE;
    BOOL bRet;
    DWORD ret;
    HANDLE start_event, done_event;
    char* cmd;
    char dbglog[MAX_PATH];
    char childlog[MAX_PATH];
    PROCESS_INFORMATION info;
    STARTUPINFOA startup;
    DWORD exit_code;
    crash_blackbox_t crash_blackbox;
    debugger_blackbox_t dbg_blackbox;
    DWORD wait_code;

    if (skip_crash_and_debug)
    {
        win_skip("Skipping crash_and_debug\n");
        return;
    }

    ret=RegSetValueExA(hkey, "auto", 0, REG_SZ, (BYTE*)"1", 2);
    if (ret == ERROR_ACCESS_DENIED)
    {
        skip_crash_and_debug = TRUE;
        skip("No write access to change the debugger\n");
        return;
    }

    ok(ret == ERROR_SUCCESS, "unable to set AeDebug/auto: ret=%d\n", ret);

    get_file_name(dbglog);
    get_events(dbglog, &start_event, &done_event);
    cmd=HeapAlloc(GetProcessHeap(), 0, strlen(argv0)+10+strlen(dbgtasks)+1+strlen(dbglog)+2+34+1);
    sprintf(cmd, "%s debugger %s \"%s\" %%ld %%ld", argv0, dbgtasks, dbglog);
    ret=RegSetValueExA(hkey, "debugger", 0, REG_SZ, (BYTE*)cmd, strlen(cmd)+1);
    ok(ret == ERROR_SUCCESS, "unable to set AeDebug/debugger: ret=%d\n", ret);
    HeapFree(GetProcessHeap(), 0, cmd);

    get_file_name(childlog);
    cmd=HeapAlloc(GetProcessHeap(), 0, strlen(argv0)+16+strlen(dbglog)+2+1);
    sprintf(cmd, "%s debugger crash \"%s\"", argv0, childlog);

    memset(&startup, 0, sizeof(startup));
    startup.cb = sizeof(startup);
    startup.dwFlags = STARTF_USESHOWWINDOW;
    startup.wShowWindow = SW_SHOWNORMAL;
    ret=CreateProcessA(NULL, cmd, NULL, NULL, FALSE, 0, NULL, NULL, &startup, &info);
    ok(ret, "CreateProcess: err=%d\n", GetLastError());
    HeapFree(GetProcessHeap(), 0, cmd);
    CloseHandle(info.hThread);

    /* The process exits... */
    trace("waiting for child exit...\n");
    wait_code = WaitForSingleObject(info.hProcess, 30000);
#if defined(_WIN64) && defined(__MINGW32__)
    /* Mingw x64 doesn't output proper unwind info */
    skip_crash_and_debug = broken(wait_code == WAIT_TIMEOUT);
    if (skip_crash_and_debug)
    {
        TerminateProcess(info.hProcess, WAIT_TIMEOUT);
        WaitForSingleObject(info.hProcess, 5000);
        CloseHandle(info.hProcess);
        DeleteFileA(dbglog);
        DeleteFileA(childlog);
        win_skip("Giving up on child process\n");
        return;
    }
#endif
    ok(wait_code == WAIT_OBJECT_0, "Timed out waiting for the child to crash\n");
    bRet = GetExitCodeProcess(info.hProcess, &exit_code);
    ok(bRet, "GetExitCodeProcess failed: err=%d\n", GetLastError());
    if (strstr(dbgtasks, "code2"))
    {
        /* If, after attaching to the debuggee, the debugger exits without
         * detaching, then the debuggee gets a special exit code.
         */
        ok(exit_code == STATUS_DEBUGGER_INACTIVE ||
           broken(exit_code == STATUS_ACCESS_VIOLATION) || /* Intermittent Vista+ */
           broken(exit_code == WAIT_ABANDONED), /* NT4, W2K */
           "wrong exit code : %08x\n", exit_code);
    }
    else
        ok(exit_code == STATUS_ACCESS_VIOLATION ||
           broken(exit_code == WAIT_ABANDONED), /* NT4, W2K, W2K3 */
           "wrong exit code : %08x\n", exit_code);
    CloseHandle(info.hProcess);

    /* ...before the debugger */
    if (strstr(dbgtasks, "order"))
        ok(SetEvent(start_event), "SetEvent(start_event) failed\n");

    trace("waiting for the debugger...\n");
    wait_code = WaitForSingleObject(done_event, 5000);
#if defined(_WIN64) && defined(__MINGW32__)
    /* Mingw x64 doesn't output proper unwind info */
    skip_crash_and_debug = broken(wait_code == WAIT_TIMEOUT);
    if (skip_crash_and_debug)
    {
        DeleteFileA(dbglog);
        DeleteFileA(childlog);
        win_skip("Giving up on debugger\n");
        return;
    }
#endif
    ok(wait_code == WAIT_OBJECT_0, "Timed out waiting for the debugger\n");

    ok(load_blackbox(childlog, &crash_blackbox, sizeof(crash_blackbox)), "failed to open: %s\n", childlog);
    ok(load_blackbox(dbglog, &dbg_blackbox, sizeof(dbg_blackbox)), "failed to open: %s\n", dbglog);

    ok(dbg_blackbox.argc == 6, "wrong debugger argument count: %d\n", dbg_blackbox.argc);
    ok(dbg_blackbox.pid == crash_blackbox.pid, "the child and debugged pids don't match: %d != %d\n", crash_blackbox.pid, dbg_blackbox.pid);
    ok(dbg_blackbox.debug_rc, "debugger: SetEvent(debug_event) failed err=%d\n", dbg_blackbox.debug_err);
    ok(dbg_blackbox.attach_rc, "DebugActiveProcess(%d) failed err=%d\n", dbg_blackbox.pid, dbg_blackbox.attach_err);
    ok(dbg_blackbox.nokill_rc, "DebugSetProcessKillOnExit(FALSE) failed err=%d\n", dbg_blackbox.nokill_err);
    ok(dbg_blackbox.detach_rc, "DebugActiveProcessStop(%d) failed err=%d\n", dbg_blackbox.pid, dbg_blackbox.detach_err);

    DeleteFileA(dbglog);
    DeleteFileA(childlog);
}

static void crash_and_winedbg(HKEY hkey, const char* argv0)
{
    BOOL bRet;
    DWORD ret;
    char* cmd;
    PROCESS_INFORMATION info;
    STARTUPINFOA startup;
    DWORD exit_code;

    ret=RegSetValueExA(hkey, "auto", 0, REG_SZ, (BYTE*)"1", 2);
    ok(ret == ERROR_SUCCESS, "unable to set AeDebug/auto: ret=%d\n", ret);

    cmd=HeapAlloc(GetProcessHeap(), 0, strlen(argv0)+15+1);
    sprintf(cmd, "%s debugger crash", argv0);

    memset(&startup, 0, sizeof(startup));
    startup.cb = sizeof(startup);
    startup.dwFlags = STARTF_USESHOWWINDOW;
    startup.wShowWindow = SW_SHOWNORMAL;
    ret=CreateProcessA(NULL, cmd, NULL, NULL, FALSE, 0, NULL, NULL, &startup, &info);
    ok(ret, "CreateProcess: err=%d\n", GetLastError());
    HeapFree(GetProcessHeap(), 0, cmd);
    CloseHandle(info.hThread);

    trace("waiting for child exit...\n");
    ok(WaitForSingleObject(info.hProcess, 60000) == WAIT_OBJECT_0, "Timed out waiting for the child to crash\n");
    bRet = GetExitCodeProcess(info.hProcess, &exit_code);
    ok(bRet, "GetExitCodeProcess failed: err=%d\n", GetLastError());
    ok(exit_code == STATUS_ACCESS_VIOLATION, "exit code = %08x\n", exit_code);
    CloseHandle(info.hProcess);
}

static void test_ExitCode(void)
{
    static const char* AeDebug="Software\\Microsoft\\Windows NT\\CurrentVersion\\AeDebug";
    static const char* WineDbg="Software\\Wine\\WineDbg";
    char test_exe[MAX_PATH];
    DWORD ret;
    HKEY hkey;
    DWORD disposition;
    reg_save_value auto_value;
    reg_save_value debugger_value;

    GetModuleFileNameA(GetModuleHandleA(NULL), test_exe, sizeof(test_exe));
    if (GetFileAttributesA(test_exe) == INVALID_FILE_ATTRIBUTES)
        strcat(test_exe, ".so");
    if (GetFileAttributesA(test_exe) == INVALID_FILE_ATTRIBUTES)
    {
        ok(0, "could not find the test executable '%s'\n", test_exe);
        return;
    }

    ret=RegCreateKeyExA(HKEY_LOCAL_MACHINE, AeDebug, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hkey, &disposition);
    if (ret == ERROR_SUCCESS)
    {
        save_value(hkey, "auto", &auto_value);
        save_value(hkey, "debugger", &debugger_value);
        trace("HKLM\\%s\\debugger is set to '%s'\n", AeDebug, debugger_value.data);
    }
    else if (ret == ERROR_ACCESS_DENIED)
    {
        skip("not enough privileges to change the debugger\n");
        return;
    }
    else if (ret != ERROR_FILE_NOT_FOUND)
    {
        ok(0, "could not open the AeDebug key: %d\n", ret);
        return;
    }
    else debugger_value.data = NULL;

    if (debugger_value.data && debugger_value.type == REG_SZ &&
        strstr((char*)debugger_value.data, "winedbg --auto"))
    {
        HKEY hkeyWinedbg;
        ret=RegCreateKeyA(HKEY_CURRENT_USER, WineDbg, &hkeyWinedbg);
        if (ret == ERROR_SUCCESS)
        {
            static DWORD zero;
            reg_save_value crash_dlg_value;
            save_value(hkeyWinedbg, "ShowCrashDialog", &crash_dlg_value);
            RegSetValueExA(hkeyWinedbg, "ShowCrashDialog", 0, REG_DWORD, (BYTE *)&zero, sizeof(DWORD));
            crash_and_winedbg(hkey, test_exe);
            restore_value(hkeyWinedbg, &crash_dlg_value);
            RegCloseKey(hkeyWinedbg);
        }
        else
            ok(0, "Couldn't access WineDbg Key - error %u\n", ret);
    }

    if (winetest_interactive)
        /* Since the debugging process never sets the debug event, it isn't recognized
           as a valid debugger and, after the debugger exits, Windows will show a dialog box
           asking the user what to do */
        crash_and_debug(hkey, test_exe, "dbg,none");
    else
        skip("\"none\" debugger test needs user interaction\n");
    ok(disposition == REG_OPENED_EXISTING_KEY, "expected REG_OPENED_EXISTING_KEY, got %d\n", disposition);
    crash_and_debug(hkey, test_exe, "dbg,event,order");
    crash_and_debug(hkey, test_exe, "dbg,attach,event,code2");
    if (pDebugSetProcessKillOnExit)
        crash_and_debug(hkey, test_exe, "dbg,attach,event,nokill");
    else
        win_skip("DebugSetProcessKillOnExit is not available\n");
    if (pDebugActiveProcessStop)
        crash_and_debug(hkey, test_exe, "dbg,attach,event,detach");
    else
        win_skip("DebugActiveProcessStop is not available\n");

    if (disposition == REG_CREATED_NEW_KEY)
    {
        RegCloseKey(hkey);
        RegDeleteKeyA(HKEY_LOCAL_MACHINE, AeDebug);
    }
    else
    {
        restore_value(hkey, &auto_value);
        restore_value(hkey, &debugger_value);
        RegCloseKey(hkey);
    }
}

static void test_RemoteDebugger(void)
{
    BOOL bret, present;
    if(!pCheckRemoteDebuggerPresent)
    {
        win_skip("CheckRemoteDebuggerPresent is not available\n");
        return;
    }
    present = TRUE;
    SetLastError(0xdeadbeef);
    bret = pCheckRemoteDebuggerPresent(GetCurrentProcess(),&present);
    ok(bret , "expected CheckRemoteDebuggerPresent to succeed\n");
    ok(0xdeadbeef == GetLastError(),
       "expected error to be unchanged, got %d/%x\n",GetLastError(), GetLastError());

    present = TRUE;
    SetLastError(0xdeadbeef);
    bret = pCheckRemoteDebuggerPresent(NULL,&present);
    ok(!bret , "expected CheckRemoteDebuggerPresent to fail\n");
    ok(present, "expected parameter to be unchanged\n");
    ok(ERROR_INVALID_PARAMETER == GetLastError(),
       "expected error ERROR_INVALID_PARAMETER, got %d/%x\n",GetLastError(), GetLastError());

    SetLastError(0xdeadbeef);
    bret = pCheckRemoteDebuggerPresent(GetCurrentProcess(),NULL);
    ok(!bret , "expected CheckRemoteDebuggerPresent to fail\n");
    ok(ERROR_INVALID_PARAMETER == GetLastError(),
       "expected error ERROR_INVALID_PARAMETER, got %d/%x\n",GetLastError(), GetLastError());
}

struct child_blackbox
{
    LONG failures;
};

static void doChild(int argc, char **argv)
{
    struct child_blackbox blackbox;
    const char *blackbox_file;
    HANDLE parent;
    DWORD ppid;
    BOOL debug;
    BOOL ret;

    blackbox_file = argv[4];
    sscanf(argv[3], "%08x", &ppid);

    parent = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, ppid);
    child_ok(!!parent, "OpenProcess failed, last error %#x.\n", GetLastError());

    ret = pCheckRemoteDebuggerPresent(parent, &debug);
    child_ok(ret, "CheckRemoteDebuggerPresent failed, last error %#x.\n", GetLastError());
    child_ok(!debug, "Expected debug == 0, got %#x.\n", debug);

    ret = DebugActiveProcess(ppid);
    child_ok(ret, "DebugActiveProcess failed, last error %#x.\n", GetLastError());

    ret = pCheckRemoteDebuggerPresent(parent, &debug);
    child_ok(ret, "CheckRemoteDebuggerPresent failed, last error %#x.\n", GetLastError());
    child_ok(debug, "Expected debug != 0, got %#x.\n", debug);

    ret = pDebugActiveProcessStop(ppid);
    child_ok(ret, "DebugActiveProcessStop failed, last error %#x.\n", GetLastError());

    ret = pCheckRemoteDebuggerPresent(parent, &debug);
    child_ok(ret, "CheckRemoteDebuggerPresent failed, last error %#x.\n", GetLastError());
    child_ok(!debug, "Expected debug == 0, got %#x.\n", debug);

    ret = CloseHandle(parent);
    child_ok(ret, "CloseHandle failed, last error %#x.\n", GetLastError());

    ret = pIsDebuggerPresent();
    child_ok(ret, "Expected ret != 0, got %#x.\n", ret);
    ret = pCheckRemoteDebuggerPresent(GetCurrentProcess(), &debug);
    child_ok(ret, "CheckRemoteDebuggerPresent failed, last error %#x.\n", GetLastError());
    child_ok(debug, "Expected debug != 0, got %#x.\n", debug);

    NtCurrentTeb()->Peb->BeingDebugged = FALSE;

    ret = pIsDebuggerPresent();
    child_ok(!ret, "Expected ret != 0, got %#x.\n", ret);
    ret = pCheckRemoteDebuggerPresent(GetCurrentProcess(), &debug);
    child_ok(ret, "CheckRemoteDebuggerPresent failed, last error %#x.\n", GetLastError());
    child_ok(debug, "Expected debug != 0, got %#x.\n", debug);

    NtCurrentTeb()->Peb->BeingDebugged = TRUE;

    blackbox.failures = child_failures;
    save_blackbox(blackbox_file, &blackbox, sizeof(blackbox));
}

static void test_debug_loop(int argc, char **argv)
{
    const char *arguments = " debugger child ";
    struct child_blackbox blackbox;
    char blackbox_file[MAX_PATH];
    PROCESS_INFORMATION pi;
    STARTUPINFOA si;
    BOOL debug;
    DWORD pid;
    char *cmd;
    BOOL ret;

    if (!pDebugActiveProcessStop || !pCheckRemoteDebuggerPresent)
    {
        win_skip("DebugActiveProcessStop or CheckRemoteDebuggerPresent not available, skipping test.\n");
        return;
    }

    pid = GetCurrentProcessId();
    ret = DebugActiveProcess(pid);
    ok(!ret, "DebugActiveProcess() succeeded on own process.\n");

    get_file_name(blackbox_file);
    cmd = HeapAlloc(GetProcessHeap(), 0, strlen(argv[0]) + strlen(arguments) + strlen(blackbox_file) + 2 + 10);
    sprintf(cmd, "%s%s%08x \"%s\"", argv[0], arguments, pid, blackbox_file);

    memset(&si, 0, sizeof(si));
    si.cb = sizeof(si);
    ret = CreateProcessA(NULL, cmd, NULL, NULL, FALSE, DEBUG_PROCESS, NULL, NULL, &si, &pi);
    ok(ret, "CreateProcess failed, last error %#x.\n", GetLastError());

    HeapFree(GetProcessHeap(), 0, cmd);

    ret = pCheckRemoteDebuggerPresent(pi.hProcess, &debug);
    ok(ret, "CheckRemoteDebuggerPresent failed, last error %#x.\n", GetLastError());
    ok(debug, "Expected debug != 0, got %#x.\n", debug);

    for (;;)
    {
        DEBUG_EVENT ev;

        ret = WaitForDebugEvent(&ev, INFINITE);
        ok(ret, "WaitForDebugEvent failed, last error %#x.\n", GetLastError());
        if (!ret) break;

        if (ev.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) break;

        ret = ContinueDebugEvent(ev.dwProcessId, ev.dwThreadId, DBG_CONTINUE);
        ok(ret, "ContinueDebugEvent failed, last error %#x.\n", GetLastError());
        if (!ret) break;
    }

    ret = CloseHandle(pi.hThread);
    ok(ret, "CloseHandle failed, last error %#x.\n", GetLastError());
    ret = CloseHandle(pi.hProcess);
    ok(ret, "CloseHandle failed, last error %#x.\n", GetLastError());

    load_blackbox(blackbox_file, &blackbox, sizeof(blackbox));
    ok(!blackbox.failures, "Got %d failures from child process.\n", blackbox.failures);

    ret = DeleteFileA(blackbox_file);
    ok(ret, "DeleteFileA failed, last error %#x.\n", GetLastError());
}

static void doChildren(int argc, char **argv)
{
    const char *arguments = "debugger children last";
    struct child_blackbox blackbox;
    const char *blackbox_file, *p;
    char event_name[MAX_PATH];
    PROCESS_INFORMATION pi;
    STARTUPINFOA si;
    HANDLE event;
    char *cmd;
    BOOL ret;

    if (!strcmp(argv[3], "last")) return;

    blackbox_file = argv[3];

    p = strrchr(blackbox_file, '\\');
    p = p ? p+1 : blackbox_file;
    strcpy(event_name, p);
    strcat(event_name, "_init");
    event = OpenEventA(EVENT_ALL_ACCESS, FALSE, event_name);
    child_ok(event != NULL, "OpenEvent failed, last error %d.\n", GetLastError());
    SetEvent(event);
    CloseHandle(event);

    p = strrchr(blackbox_file, '\\');
    p = p ? p+1 : blackbox_file;
    strcpy(event_name, p);
    strcat(event_name, "_attach");
    event = OpenEventA(EVENT_ALL_ACCESS, FALSE, event_name);
    child_ok(event != NULL, "OpenEvent failed, last error %d.\n", GetLastError());
    WaitForSingleObject(event, INFINITE);
    CloseHandle(event);

    cmd = HeapAlloc(GetProcessHeap(), 0, strlen(argv[0]) + strlen(arguments) + 2);
    sprintf(cmd, "%s %s", argv[0], arguments);

    memset(&si, 0, sizeof(si));
    si.cb = sizeof(si);
    ret = CreateProcessA(NULL, cmd, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);
    child_ok(ret, "CreateProcess failed, last error %d.\n", GetLastError());

    child_ok(WaitForSingleObject(pi.hProcess, 10000) == WAIT_OBJECT_0,
            "Timed out waiting for the child to exit\n");

    ret = CloseHandle(pi.hThread);
    child_ok(ret, "CloseHandle failed, last error %d.\n", GetLastError());
    ret = CloseHandle(pi.hProcess);
    child_ok(ret, "CloseHandle failed, last error %d.\n", GetLastError());

    blackbox.failures = child_failures;
    save_blackbox(blackbox_file, &blackbox, sizeof(blackbox));

    HeapFree(GetProcessHeap(), 0, cmd);
}

static void test_debug_children(char *name, DWORD flag, BOOL debug_child)
{
    const char *arguments = "debugger children";
    struct child_blackbox blackbox;
    char blackbox_file[MAX_PATH], *p;
    char event_name[MAX_PATH];
    PROCESS_INFORMATION pi;
    STARTUPINFOA si;
    HANDLE event_init, event_attach;
    char *cmd;
    BOOL debug, ret;
    BOOL got_child_event = FALSE;

    if (!pDebugActiveProcessStop || !pCheckRemoteDebuggerPresent)
    {
        win_skip("DebugActiveProcessStop or CheckRemoteDebuggerPresent not available, skipping test.\n");
        return;
    }

    get_file_name(blackbox_file);
    cmd = HeapAlloc(GetProcessHeap(), 0, strlen(name) + strlen(arguments) + strlen(blackbox_file) + 5);
    sprintf(cmd, "%s %s \"%s\"", name, arguments, blackbox_file);

    p = strrchr(blackbox_file, '\\');
    p = p ? p+1 : blackbox_file;
    strcpy(event_name, p);
    strcat(event_name, "_init");
    event_init = CreateEventA(NULL, FALSE, FALSE, event_name);
    ok(event_init != NULL, "OpenEvent failed, last error %d.\n", GetLastError());

    p = strrchr(blackbox_file, '\\');
    p = p ? p+1 : blackbox_file;
    strcpy(event_name, p);
    strcat(event_name, "_attach");
    event_attach = CreateEventA(NULL, FALSE, flag!=0, event_name);
    ok(event_attach != NULL, "CreateEvent failed, last error %d.\n", GetLastError());

    memset(&si, 0, sizeof(si));
    si.cb = sizeof(si);

    ret = CreateProcessA(NULL, cmd, NULL, NULL, FALSE, flag, NULL, NULL, &si, &pi);
    ok(ret, "CreateProcess failed, last error %d.\n", GetLastError());
    HeapFree(GetProcessHeap(), 0, cmd);
    if (!flag)
    {
        WaitForSingleObject(event_init, INFINITE);
        ret = DebugActiveProcess(pi.dwProcessId);
        ok(ret, "DebugActiveProcess failed, last error %d.\n", GetLastError());
        ret = SetEvent(event_attach);
        ok(ret, "SetEvent failed, last error %d.\n", GetLastError());
    }

    ret = pCheckRemoteDebuggerPresent(pi.hProcess, &debug);
    ok(ret, "CheckRemoteDebuggerPresent failed, last error %d.\n", GetLastError());
    ok(debug, "Expected debug != 0, got %x.\n", debug);

    for (;;)
    {
        DEBUG_EVENT ev;

        ret = WaitForDebugEvent(&ev, INFINITE);
        ok(ret, "WaitForDebugEvent failed, last error %d.\n", GetLastError());
        if (!ret) break;

        if (ev.dwDebugEventCode==EXIT_PROCESS_DEBUG_EVENT && ev.dwProcessId==pi.dwProcessId) break;
        else if (ev.dwProcessId != pi.dwProcessId) got_child_event = TRUE;

        ret = ContinueDebugEvent(ev.dwProcessId, ev.dwThreadId, DBG_CONTINUE);
        ok(ret, "ContinueDebugEvent failed, last error %d.\n", GetLastError());
        if (!ret) break;
    }
    if(debug_child)
        ok(got_child_event, "didn't get any child events (flag: %x).\n", flag);
    else
        ok(!got_child_event, "got child event (flag: %x).\n", flag);
    CloseHandle(event_init);
    CloseHandle(event_attach);

    ret = CloseHandle(pi.hThread);
    ok(ret, "CloseHandle failed, last error %d.\n", GetLastError());
    ret = CloseHandle(pi.hProcess);
    ok(ret, "CloseHandle failed, last error %d.\n", GetLastError());

    load_blackbox(blackbox_file, &blackbox, sizeof(blackbox));
    ok(!blackbox.failures, "Got %d failures from child process.\n", blackbox.failures);

    ret = DeleteFileA(blackbox_file);
    ok(ret, "DeleteFileA failed, last error %d.\n", GetLastError());
}

START_TEST(debugger)
{
    HMODULE hdll;

    hdll=GetModuleHandleA("kernel32.dll");
    pCheckRemoteDebuggerPresent=(void*)GetProcAddress(hdll, "CheckRemoteDebuggerPresent");
    pDebugActiveProcessStop=(void*)GetProcAddress(hdll, "DebugActiveProcessStop");
    pDebugSetProcessKillOnExit=(void*)GetProcAddress(hdll, "DebugSetProcessKillOnExit");
    pIsDebuggerPresent=(void*)GetProcAddress(hdll, "IsDebuggerPresent");

    myARGC=winetest_get_mainargs(&myARGV);
    if (myARGC >= 3 && strcmp(myARGV[2], "crash") == 0)
    {
        doCrash(myARGC, myARGV);
    }
    else if (myARGC >= 3 && strncmp(myARGV[2], "dbg,", 4) == 0)
    {
        doDebugger(myARGC, myARGV);
    }
    else if (myARGC >= 5 && !strcmp(myARGV[2], "child"))
    {
        doChild(myARGC, myARGV);
    }
    else if (myARGC >= 4 && !strcmp(myARGV[2], "children"))
    {
        doChildren(myARGC, myARGV);
    }
    else
    {
        test_ExitCode();
        test_RemoteDebugger();
        test_debug_loop(myARGC, myARGV);
        test_debug_children(myARGV[0], DEBUG_PROCESS, TRUE);
        test_debug_children(myARGV[0], DEBUG_ONLY_THIS_PROCESS, FALSE);
        test_debug_children(myARGV[0], DEBUG_PROCESS|DEBUG_ONLY_THIS_PROCESS, FALSE);
        test_debug_children(myARGV[0], 0, FALSE);
    }
}