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Add NtSetContext thread and fix context frame saving/restoring

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This commit is contained in:
Maurice Heumann
2025-02-04 13:43:59 +01:00
parent e87650f3b5
commit 3d3bc3914d
2 changed files with 46 additions and 13 deletions
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35
src/windows-emulator/syscalls.cpp
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@@ -3543,7 +3543,9 @@ namespace
}
c.proc.active_thread->save(c.emu);
const auto _ = utils::finally([&] { c.proc.active_thread->restore(c.emu); });
const auto _ = utils::finally([&] {
c.proc.active_thread->restore(c.emu); //
});
thread->restore(c.emu);
@@ -3559,6 +3561,36 @@ namespace
return STATUS_SUCCESS;
}
NTSTATUS handle_NtSetContextThread(const syscall_context& c, const handle thread_handle,
const emulator_object<CONTEXT64> thread_context)
{
const auto* thread = thread_handle == CURRENT_THREAD ? c.proc.active_thread : c.proc.threads.get(thread_handle);
if (!thread)
{
return STATUS_INVALID_HANDLE;
}
const auto needs_swich = thread != c.proc.active_thread;
if (needs_swich)
{
c.proc.active_thread->save(c.emu);
thread->restore(c.emu);
}
const auto _ = utils::finally([&] {
if (needs_swich)
{
c.proc.active_thread->restore(c.emu); //
}
});
const auto context = thread_context.read();
context_frame::restore(c.emu, context);
return STATUS_SUCCESS;
}
NTSTATUS handle_NtYieldExecution(const syscall_context& c)
{
c.win_emu.yield_thread();
@@ -3689,6 +3721,7 @@ void syscall_dispatcher::add_handlers(std::map<std::string, syscall_handler>& ha
add_handler(NtUserGetCursorPos);
add_handler(NtUserReleaseDC);
add_handler(NtUserFindExistingCursorIcon);
add_handler(NtSetContextThread);
#undef add_handler
}