1
2 #ifndef _SELFTESTS_POWERPC_BASIC_ASM_H
3 #define _SELFTESTS_POWERPC_BASIC_ASM_H
4
5 #include <ppc-asm.h>
6 #include <asm/unistd.h>
7
8 #define LOAD_REG_IMMEDIATE(reg, expr) \
9 lis reg, (expr)@highest; \
10 ori reg, reg, (expr)@higher; \
11 rldicr reg, reg, 32, 31; \
12 oris reg, reg, (expr)@high; \
13 ori reg, reg, (expr)@l;
14
15
16
17
18
19
20 #if defined(_CALL_ELF) && _CALL_ELF == 2
21 #define STACK_FRAME_MIN_SIZE 32
22 #define STACK_FRAME_TOC_POS 24
23 #define __STACK_FRAME_PARAM(_param) (32 + ((_param)*8))
24 #define __STACK_FRAME_LOCAL(_num_params, _var_num) \
25 ((STACK_FRAME_PARAM(_num_params)) + ((_var_num)*8))
26 #else
27 #define STACK_FRAME_MIN_SIZE 112
28 #define STACK_FRAME_TOC_POS 40
29 #define __STACK_FRAME_PARAM(i) (48 + ((i)*8))
30
31
32
33
34
35 #define __STACK_FRAME_LOCAL(_num_params, _var_num) \
36 (112 + ((_var_num)*8))
37 #endif
38
39
40 #define STACK_FRAME_PARAM(var) __STACK_FRAME_PARAM(var)
41
42
43 #define STACK_FRAME_LOCAL(num_params, var) \
44 __STACK_FRAME_LOCAL(num_params, var)
45 #define STACK_FRAME_LR_POS 16
46 #define STACK_FRAME_CR_POS 8
47
48
49
50
51
52
53
54
55
56
57
58 #define PUSH_BASIC_STACK(_extra) \
59 mflr r0; \
60 std r0, STACK_FRAME_LR_POS(%r1); \
61 stdu %r1, -(_extra + STACK_FRAME_MIN_SIZE)(%r1); \
62 mfcr r0; \
63 stw r0, STACK_FRAME_CR_POS(%r1); \
64 std %r2, STACK_FRAME_TOC_POS(%r1);
65
66 #define POP_BASIC_STACK(_extra) \
67 ld %r2, STACK_FRAME_TOC_POS(%r1); \
68 lwz r0, STACK_FRAME_CR_POS(%r1); \
69 mtcr r0; \
70 addi %r1, %r1, (_extra + STACK_FRAME_MIN_SIZE); \
71 ld r0, STACK_FRAME_LR_POS(%r1); \
72 mtlr r0;
73
74 #endif