[HELP] CS:GO - Finding ClientState on Linux

Images: http://imgur.com/a/x8nNg

Mac with symbols:
0x1737E0 ; GetBaseLocalClient(void)
0x1737E0 __Z18GetBaseLocalClientv proc near      ; CODE XREF: SND_IsInGame(void)+6
0x1737E0                                         ; CSfxTable::IsPrecachedSound(void):loc_3C50D ...
0x1737E0                 call    $+5
0x1737E5                 pop     eax
0x1737E6                 mov     eax, ds:(dword_75FC78 - 1737E5h)[eax]
0x1737EC                 add     eax, 4
0x1737EF                 retn
0x1737EF __Z18GetBaseLocalClientv endp

Mac latest:
0x16FBF0 engineBaseAddr  proc near               ; CODE XREF: sub_3A250+4
0x16FBF0                                         ; sub_3A460+57 ...
0x16FBF0                 push    rbp
0x16FBF1                 mov     rbp, rsp
0x16FBF4                 mov     rax, cs:qword_842AB0
0x16FBFB                 add     rax, 8
0x16FBFF                 pop     rbp
0x16FC00                 retn
0x16FC00 engineBaseAddr  endp

Linux latest:
0x448B40 engineBaseAddr  proc near               ; CODE XREF: sub_316F00+4
0x448B40                                         ; sub_3170A0+47 ...
0x448B40                 push    rbp
0x448B41                 lea     rdi, qword_12124A0  ; 48 8D 3D ?? ?? ?? ?? 31 F6 48 89 E5 5D E9 8D FF
0x448B48                 xor     esi, esi
0x448B4A                 mov     rbp, rsp
0x448B4D                 pop     rbp
0x448B4E                 jmp     sub_448AE0
0x448B4E engineBaseAddr  endp

Linux - sub_448AE0:
0x448AE0 sub_448AE0      proc near               ; CODE XREF: va_BaseAddr+E
0x448AE0                                         ; engineBaseAddr+E
0x448AE0                 push    rbp
0x448AE1                 mov     rbp, rsp
0x448AE4                 push    rbx
0x448AE5                 mov     rbx, rdi
0x448AE8                 sub     rsp, 8
0x448AEC                 cmp     esi, 0FFFFFFFFh
0x448AEF                 jz      short loc_448B08
0x448AF1                 movsxd  rsi, esi
0x448AF4                 mov     rax, [rdi+rsi*8+8]
0x448AF9                 add     rax, 8
0x448AFD
0x448AFD loc_448AFD:                             ; CODE XREF: sub_448AE0+39
0x448AFD                 add     rsp, 8
0x448B01                 pop     rbx
0x448B02                 pop     rbp
0x448B03                 retn
0x448B03 ; ---------------------------------------------------------------------------
0x448B04                 align 8
0x448B08
0x448B08 loc_448B08:                             ; CODE XREF: sub_448AE0+F
0x448B08                 mov     rax, [rdi]
0x448B0B                 call    qword ptr [rax+28h]
0x448B0E                 cdqe
0x448B10                 mov     rax, [rbx+rax*8+8]
0x448B15                 add     rax, 8
0x448B19                 jmp     short loc_448AFD
0x448B19 sub_448AE0      endp

Linux - PSEUDOCODE:
> PUSH rbp
esi = edi
rdi = offsetA
rbp = STACKPTR
< POP rbp

> PUSH rbp
rbp = STACKPTR
> PUSH rbx
rbx = rdi
STACKPTR -= 8

if(esi == 0xFFFFFFFF) {
    rax = *rdi
    -> call: rax + 0x28
    rax = rbx + rax*8 + 8
    rax += 8
}

STACKPTR += 8
< POP rbx
< POP rbp
### RETURN

(movsxd) rsi = esi
rax = rdi + rsi*8 + 8
rax += 8

Changed: rax = ClientState*
Input: rdi = offsetA