decompals/wibo
1
0
Fork 0
mirror of https://github.com/decompals/wibo.git synced 2025-12-12 14:46:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

4
dll/kernel32/fibersapi.cpp
View File

@@ -13,6 +13,7 @@ LPVOID g_flsValues[kMaxFlsValues] = {nullptr};
namespace kernel32 {
DWORD WIN_FUNC FlsAlloc(PFLS_CALLBACK_FUNCTION lpCallback) {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("FlsAlloc(%p)", lpCallback);
// If the function succeeds, the return value is an FLS index initialized to zero.
for (DWORD i = 0; i < kMaxFlsValues; i++) {
@@ -29,6 +30,7 @@ DWORD WIN_FUNC FlsAlloc(PFLS_CALLBACK_FUNCTION lpCallback) {
}
BOOL WIN_FUNC FlsFree(DWORD dwFlsIndex) {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("FlsFree(%u)\n", dwFlsIndex);
if (dwFlsIndex >= 0 && dwFlsIndex < kMaxFlsValues && g_flsValuesUsed[dwFlsIndex]) {
g_flsValuesUsed[dwFlsIndex] = false;
@@ -40,6 +42,7 @@ BOOL WIN_FUNC FlsFree(DWORD dwFlsIndex) {
}
PVOID WIN_FUNC FlsGetValue(DWORD dwFlsIndex) {
WIN_API_SEGMENT_GUARD();
VERBOSE_LOG("FlsGetValue(%u)\n", dwFlsIndex);
PVOID result = nullptr;
if (dwFlsIndex >= 0 && dwFlsIndex < kMaxFlsValues && g_flsValuesUsed[dwFlsIndex]) {
@@ -54,6 +57,7 @@ PVOID WIN_FUNC FlsGetValue(DWORD dwFlsIndex) {
}
BOOL WIN_FUNC FlsSetValue(DWORD dwFlsIndex, PVOID lpFlsData) {
WIN_API_SEGMENT_GUARD();
VERBOSE_LOG("FlsSetValue(%u, %p)\n", dwFlsIndex, lpFlsData);
if (dwFlsIndex >= 0 && dwFlsIndex < kMaxFlsValues && g_flsValuesUsed[dwFlsIndex]) {
g_flsValues[dwFlsIndex] = lpFlsData;