Build faile on arm64, error C2100: you cannot dereference an operand of type 'unsigned __int64'

[miyanyan]

Hi, I got this error when I tried to add to vcpkg:

libpeconv\src\peb_lookup.cpp(48): error C2100: you cannot dereference an operand of type 'unsigned __int64'

this error refers to:

inline PPEB get_peb()
{
#if defined(_M_AMD64)
    return (PPEB)__readgsqword(0x60);
#elif defined(_M_ARM64)
    PPEB peb = (PPEB)(*(__getReg(18) + 0x60));  // <------ here
    #ifdef _DEBUG
    std::cout << "[+] ARM64 TEB: " << __getReg(18) << " PEB: " <<  peb << "\n";
    #endif
    return peb;
#else
    return (PPEB)__readfsdword(0x30);
/*
//alternative way to fetch it:
    LPVOID PEB = NULL;
    __asm {
        mov eax, fs:[30h]
        mov PEB, eax
    };
    return (PPEB)PEB;

    or:
    LPVOID PEB = RtlGetCurrentPeb();
*/
#endif
}

Here's the full log:

install-arm64-windows-static-md-dbg-out.log

[hasherezade]

hi @miyanyan ! Thank you for reporting. I currently don't have the access to the ARM64 machine, so I cannot reproduce it. But I will try to do it soon, and I will get back to you.

[NotCapengeR]

You can try to use NtCurrentPeb macro:

inline PPEB get_peb() {
    return NtCurrentPeb();
}