1 .global __cp_begin
2 .hidden __cp_begin
3 .global __cp_end
4 .hidden __cp_end
5 .global __cp_cancel
6 .hidden __cp_cancel
7 .hidden __cancel
8 .global __syscall_cp_asm
9 .hidden __syscall_cp_asm
10 .text
11 .type __syscall_cp_asm,%function
12__syscall_cp_asm:
13 # at enter: r3 = pointer to self->cancel, r4: syscall no, r5: first arg, r6: 2nd, r7: 3rd, r8: 4th, r9: 5th, r10: 6th
14__cp_begin:
15 # if (self->cancel) goto __cp_cancel
16 lwz 0, 0(3)
17 cmpwi cr7, 0, 0
18 bne- cr7, __cp_cancel
19
20 # make syscall
21 mr 0, 4
22 mr 3, 5
23 mr 4, 6
24 mr 5, 7
25 mr 6, 8
26 mr 7, 9
27 mr 8, 10
28 sc
29
30__cp_end:
31 # return error ? -r3 : r3
32 bnslr+
33 neg 3, 3
34 blr
35
36__cp_cancel:
37 mflr 0
38 bl 1f
39 .long .TOC.-.
401: mflr 3
41 lwa 2, 0(3)
42 add 2, 2, 3
43 mtlr 0
44 b __cancel