Sweden-Number/dlls/dbghelp/tests/dbghelp.c

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/*
* Copyright 2018 Zebediah Figura
*
* 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 "windef.h"
#include "verrsrc.h"
#include "dbghelp.h"
#include "wine/test.h"
#if defined(__i386__) || defined(__x86_64__)
static DWORD CALLBACK stack_walk_thread(void *arg)
{
DWORD count = SuspendThread(GetCurrentThread());
ok(!count, "got %ld\n", count);
return 0;
}
static void test_stack_walk(void)
{
char si_buf[sizeof(SYMBOL_INFO) + 200];
SYMBOL_INFO *si = (SYMBOL_INFO *)si_buf;
STACKFRAME64 frame = {{0}}, frame0;
BOOL found_our_frame = FALSE;
DWORD machine;
HANDLE thread;
DWORD64 disp;
CONTEXT ctx;
DWORD count;
BOOL ret;
thread = CreateThread(NULL, 0, stack_walk_thread, NULL, 0, NULL);
/* wait for the thread to suspend itself */
do
{
Sleep(50);
count = SuspendThread(thread);
ResumeThread(thread);
}
while (!count);
ctx.ContextFlags = CONTEXT_CONTROL;
ret = GetThreadContext(thread, &ctx);
ok(ret, "got error %u\n", ret);
frame.AddrPC.Mode = AddrModeFlat;
frame.AddrFrame.Mode = AddrModeFlat;
frame.AddrStack.Mode = AddrModeFlat;
#ifdef __i386__
machine = IMAGE_FILE_MACHINE_I386;
frame.AddrPC.Segment = ctx.SegCs;
frame.AddrPC.Offset = ctx.Eip;
frame.AddrFrame.Segment = ctx.SegSs;
frame.AddrFrame.Offset = ctx.Ebp;
frame.AddrStack.Segment = ctx.SegSs;
frame.AddrStack.Offset = ctx.Esp;
#elif defined(__x86_64__)
machine = IMAGE_FILE_MACHINE_AMD64;
frame.AddrPC.Segment = ctx.SegCs;
frame.AddrPC.Offset = ctx.Rip;
frame.AddrFrame.Segment = ctx.SegSs;
frame.AddrFrame.Offset = ctx.Rbp;
frame.AddrStack.Segment = ctx.SegSs;
frame.AddrStack.Offset = ctx.Rsp;
#endif
frame0 = frame;
/* first invocation just calculates the return address */
ret = StackWalk64(machine, GetCurrentProcess(), thread, &frame, &ctx, NULL,
SymFunctionTableAccess64, SymGetModuleBase64, NULL);
ok(ret, "StackWalk64() failed: %lu\n", GetLastError());
ok(frame.AddrPC.Offset == frame0.AddrPC.Offset, "expected %s, got %s\n",
wine_dbgstr_longlong(frame0.AddrPC.Offset),
wine_dbgstr_longlong(frame.AddrPC.Offset));
ok(frame.AddrStack.Offset == frame0.AddrStack.Offset, "expected %s, got %s\n",
wine_dbgstr_longlong(frame0.AddrStack.Offset),
wine_dbgstr_longlong(frame.AddrStack.Offset));
ok(frame.AddrReturn.Offset && frame.AddrReturn.Offset != frame.AddrPC.Offset,
"got bad return address %s\n", wine_dbgstr_longlong(frame.AddrReturn.Offset));
while (frame.AddrReturn.Offset)
{
char *addr;
ret = StackWalk64(machine, GetCurrentProcess(), thread, &frame, &ctx, NULL,
SymFunctionTableAccess64, SymGetModuleBase64, NULL);
ok(ret, "StackWalk64() failed: %lu\n", GetLastError());
addr = (void *)(DWORD_PTR)frame.AddrPC.Offset;
if (!found_our_frame && addr > (char *)stack_walk_thread && addr < (char *)stack_walk_thread + 0x100)
{
found_our_frame = TRUE;
si->SizeOfStruct = sizeof(SYMBOL_INFO);
si->MaxNameLen = 200;
if (SymFromAddr(GetCurrentProcess(), frame.AddrPC.Offset, &disp, si))
ok(!strcmp(si->Name, "stack_walk_thread"), "got wrong name %s\n", si->Name);
}
}
ret = StackWalk64(machine, GetCurrentProcess(), thread, &frame, &ctx, NULL,
SymFunctionTableAccess64, SymGetModuleBase64, NULL);
ok(!ret, "StackWalk64() should have failed\n");
ok(found_our_frame, "didn't find stack_walk_thread frame\n");
}
#else /* __i386__ || __x86_64__ */
static void test_stack_walk(void)
{
}
#endif /* __i386__ || __x86_64__ */
static void test_search_path(void)
{
char search_path[128];
BOOL ret;
/* The default symbol path is ".[;%_NT_SYMBOL_PATH%][;%_NT_ALT_SYMBOL_PATH%]".
* We unset both variables earlier so should simply get "." */
ret = SymGetSearchPath(GetCurrentProcess(), search_path, ARRAY_SIZE(search_path));
ok(ret == TRUE, "ret = %d\n", ret);
ok(!strcmp(search_path, "."), "Got search path '%s', expected '.'\n", search_path);
/* Set an arbitrary search path */
ret = SymSetSearchPath(GetCurrentProcess(), "W:\\");
ok(ret == TRUE, "ret = %d\n", ret);
ret = SymGetSearchPath(GetCurrentProcess(), search_path, ARRAY_SIZE(search_path));
ok(ret == TRUE, "ret = %d\n", ret);
ok(!strcmp(search_path, "W:\\"), "Got search path '%s', expected 'W:\\'\n", search_path);
/* Setting to NULL resets to the default */
ret = SymSetSearchPath(GetCurrentProcess(), NULL);
ok(ret == TRUE, "ret = %d\n", ret);
ret = SymGetSearchPath(GetCurrentProcess(), search_path, ARRAY_SIZE(search_path));
ok(ret == TRUE, "ret = %d\n", ret);
ok(!strcmp(search_path, "."), "Got search path '%s', expected '.'\n", search_path);
/* With _NT_SYMBOL_PATH */
SetEnvironmentVariableA("_NT_SYMBOL_PATH", "X:\\");
ret = SymSetSearchPath(GetCurrentProcess(), NULL);
ok(ret == TRUE, "ret = %d\n", ret);
ret = SymGetSearchPath(GetCurrentProcess(), search_path, ARRAY_SIZE(search_path));
ok(ret == TRUE, "ret = %d\n", ret);
ok(!strcmp(search_path, ".;X:\\"), "Got search path '%s', expected '.;X:\\'\n", search_path);
/* With both _NT_SYMBOL_PATH and _NT_ALT_SYMBOL_PATH */
SetEnvironmentVariableA("_NT_ALT_SYMBOL_PATH", "Y:\\");
ret = SymSetSearchPath(GetCurrentProcess(), NULL);
ok(ret == TRUE, "ret = %d\n", ret);
ret = SymGetSearchPath(GetCurrentProcess(), search_path, ARRAY_SIZE(search_path));
ok(ret == TRUE, "ret = %d\n", ret);
ok(!strcmp(search_path, ".;X:\\;Y:\\"), "Got search path '%s', expected '.;X:\\;Y:\\'\n", search_path);
/* With just _NT_ALT_SYMBOL_PATH */
SetEnvironmentVariableA("_NT_SYMBOL_PATH", NULL);
ret = SymSetSearchPath(GetCurrentProcess(), NULL);
ok(ret == TRUE, "ret = %d\n", ret);
ret = SymGetSearchPath(GetCurrentProcess(), search_path, ARRAY_SIZE(search_path));
ok(ret == TRUE, "ret = %d\n", ret);
ok(!strcmp(search_path, ".;Y:\\"), "Got search path '%s', expected '.;Y:\\'\n", search_path);
/* Restore original search path */
SetEnvironmentVariableA("_NT_ALT_SYMBOL_PATH", NULL);
ret = SymSetSearchPath(GetCurrentProcess(), NULL);
ok(ret == TRUE, "ret = %d\n", ret);
ret = SymGetSearchPath(GetCurrentProcess(), search_path, ARRAY_SIZE(search_path));
ok(ret == TRUE, "ret = %d\n", ret);
ok(!strcmp(search_path, "."), "Got search path '%s', expected '.'\n", search_path);
}
START_TEST(dbghelp)
{
BOOL ret;
/* Don't let the user's environment influence our symbol path */
SetEnvironmentVariableA("_NT_SYMBOL_PATH", NULL);
SetEnvironmentVariableA("_NT_ALT_SYMBOL_PATH", NULL);
ret = SymInitialize(GetCurrentProcess(), NULL, TRUE);
ok(ret, "got error %lu\n", GetLastError());
test_stack_walk();
test_search_path();
ret = SymCleanup(GetCurrentProcess());
ok(ret, "got error %lu\n", GetLastError());
}