New subject: [Bug 48077] UPlay fails to start : "Error at hooking API NtProtectVirtualMemory" (UPlay's hooking engine can't handle ENDBR32 instruction inserted at non-hotpatch API entries due to distro build environments '-fcf-protection')

11 Nov 2019


      https://bugs.winehq.org/show_bug.cgi?id=48077
Bug ID: 48077
           Summary: UPlay fails to start : "Error at hooking API
                    NtProtectVirtualMemory" (UPlay's hooking engine can't
                    handle ENDBR32 instruction inserted at non-hotpatch
                    API entries due to distro build environments
                    '-fcf-protection')
           Product: Wine
           Version: 4.19
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ntdll
          Assignee: wine-bugs@winehq.org
          Reporter: dario@mailo.com
      Distribution: ---
This is related to bug 46626 and possibly bug 45199. When Wine is built with
-fcf-protection flag, on my AMD CPU the latest version of Uplay throws the
error message in the title. To fix the issue I modified one line in
dlls/ntdll/virtual.c from:
NTSTATUS WINAPI NtProtectVirtualMemory( HANDLE process, PVOID *addr_ptr, SIZE_T
*size_ptr, ULONG new_prot, ULONG *old_prot )
to:
NTSTATUS WINAPI DECLSPEC_HOTPATCH NtProtectVirtualMemory( HANDLE process, PVOID
*addr_ptr, SIZE_T *size_ptr, ULONG new_prot, ULONG *old_prot )
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[Bug 48077] New: UPlay fails to start : "Error at hooking API NtProtectVirtualMemory" (UPlay's hooking engine can't handle ENDBR32 instruction inserted at non-hotpatch API entries due to distro build environments '-fcf-protection')