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Save/restore fs/gs segments when re-entering host code

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This commit is contained in:
Luke Street
2025-10-05 13:58:40 -06:00
parent 04516b246c
commit cd7baffc5e
44 changed files with 669 additions and 20 deletions
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4
dll/user32.cpp
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@@ -7,6 +7,7 @@ namespace user32 {
constexpr uintptr_t kDefaultKeyboardLayout = 0x04090409;
int WIN_FUNC LoadStringA(void* hInstance, unsigned int uID, char* lpBuffer, int cchBufferMax) {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("LoadStringA(%p, %u, %p, %d)\n", hInstance, uID, lpBuffer, cchBufferMax);
if (!lpBuffer || cchBufferMax <= 0) {
return 0;
@@ -54,6 +55,7 @@ namespace user32 {
}
int WIN_FUNC LoadStringW(void* hInstance, unsigned int uID, uint16_t* lpBuffer, int cchBufferMax) {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("LoadStringW(%p, %u, %p, %d)\n", hInstance, uID, lpBuffer, cchBufferMax);
wibo::Executable *mod = wibo::executableFromModule((HMODULE) hInstance);
if (!mod) {
@@ -107,12 +109,14 @@ namespace user32 {
}
int WIN_FUNC MessageBoxA(void *hwnd, const char *lpText, const char *lpCaption, unsigned int uType) {
WIN_API_SEGMENT_GUARD();
printf("MESSAGE BOX: [%s] %s\n", lpCaption, lpText);
fflush(stdout);
return 1;
}
HKL WIN_FUNC GetKeyboardLayout(DWORD idThread) {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("GetKeyboardLayout(%u)\n", idThread);
(void)idThread;
wibo::lastError = ERROR_SUCCESS;