0
|
1 /*
|
|
2
|
|
3 Package: dyncall
|
|
4 Library: dyncallback
|
|
5 File: dyncallback/dyncall_thunk_x64.c
|
|
6 Description: Thunk - Implementation for x64
|
|
7 License:
|
|
8
|
|
9 Copyright (c) 2007-2015 Daniel Adler <dadler@uni-goettingen.de>,
|
|
10 Tassilo Philipp <tphilipp@potion-studios.com>
|
|
11
|
|
12 Permission to use, copy, modify, and distribute this software for any
|
|
13 purpose with or without fee is hereby granted, provided that the above
|
|
14 copyright notice and this permission notice appear in all copies.
|
|
15
|
|
16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
23
|
|
24 */
|
|
25
|
|
26
|
|
27 #include "dyncall_thunk.h"
|
|
28
|
|
29 void dcbInitThunk(DCThunk* p, void (*entry)())
|
|
30 {
|
|
31 /*
|
|
32 # x64 thunk code:
|
|
33 .intel_syntax
|
|
34
|
|
35 thunk:
|
|
36 lea rax, (rip) # copy RIP (=p?) to RAX and use address in
|
|
37 jmp [rax+16] # 'entry' (stored at RIP+16) for jump
|
|
38 nop
|
|
39 nop
|
|
40 nop
|
|
41 entry:
|
|
42 .resq 1
|
|
43 */
|
|
44
|
|
45 p->code[0] = 0xfffffffff9058d48ULL;
|
|
46 p->code[1] = 0x9090900000000325ULL;
|
|
47 p->entry = entry;
|
|
48 }
|
|
49
|