diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-x86_64/calling.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-x86_64/calling.h')
-rw-r--r-- | include/asm-x86_64/calling.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/include/asm-x86_64/calling.h b/include/asm-x86_64/calling.h new file mode 100644 index 000000000000..0bc12655fa5b --- /dev/null +++ b/include/asm-x86_64/calling.h | |||
@@ -0,0 +1,156 @@ | |||
1 | /* | ||
2 | * Some macros to handle stack frames in assembly. | ||
3 | */ | ||
4 | |||
5 | #include <linux/config.h> | ||
6 | |||
7 | #define R15 0 | ||
8 | #define R14 8 | ||
9 | #define R13 16 | ||
10 | #define R12 24 | ||
11 | #define RBP 32 | ||
12 | #define RBX 40 | ||
13 | /* arguments: interrupts/non tracing syscalls only save upto here*/ | ||
14 | #define R11 48 | ||
15 | #define R10 56 | ||
16 | #define R9 64 | ||
17 | #define R8 72 | ||
18 | #define RAX 80 | ||
19 | #define RCX 88 | ||
20 | #define RDX 96 | ||
21 | #define RSI 104 | ||
22 | #define RDI 112 | ||
23 | #define ORIG_RAX 120 /* + error_code */ | ||
24 | /* end of arguments */ | ||
25 | /* cpu exception frame or undefined in case of fast syscall. */ | ||
26 | #define RIP 128 | ||
27 | #define CS 136 | ||
28 | #define EFLAGS 144 | ||
29 | #define RSP 152 | ||
30 | #define SS 160 | ||
31 | #define ARGOFFSET R11 | ||
32 | #define SWFRAME ORIG_RAX | ||
33 | |||
34 | .macro SAVE_ARGS addskip=0,norcx=0,nor891011=0 | ||
35 | subq $9*8+\addskip,%rsp | ||
36 | CFI_ADJUST_CFA_OFFSET 9*8+\addskip | ||
37 | movq %rdi,8*8(%rsp) | ||
38 | CFI_REL_OFFSET rdi,8*8 | ||
39 | movq %rsi,7*8(%rsp) | ||
40 | CFI_REL_OFFSET rsi,7*8 | ||
41 | movq %rdx,6*8(%rsp) | ||
42 | CFI_REL_OFFSET rdx,6*8 | ||
43 | .if \norcx | ||
44 | .else | ||
45 | movq %rcx,5*8(%rsp) | ||
46 | CFI_REL_OFFSET rcx,5*8 | ||
47 | .endif | ||
48 | movq %rax,4*8(%rsp) | ||
49 | CFI_REL_OFFSET rax,4*8 | ||
50 | .if \nor891011 | ||
51 | .else | ||
52 | movq %r8,3*8(%rsp) | ||
53 | CFI_REL_OFFSET r8,3*8 | ||
54 | movq %r9,2*8(%rsp) | ||
55 | CFI_REL_OFFSET r9,2*8 | ||
56 | movq %r10,1*8(%rsp) | ||
57 | CFI_REL_OFFSET r10,1*8 | ||
58 | movq %r11,(%rsp) | ||
59 | CFI_REL_OFFSET r11,0*8 | ||
60 | .endif | ||
61 | .endm | ||
62 | |||
63 | #define ARG_SKIP 9*8 | ||
64 | .macro RESTORE_ARGS skiprax=0,addskip=0,skiprcx=0,skipr11=0,skipr8910=0,skiprdx=0 | ||
65 | .if \skipr11 | ||
66 | .else | ||
67 | movq (%rsp),%r11 | ||
68 | .endif | ||
69 | .if \skipr8910 | ||
70 | .else | ||
71 | movq 1*8(%rsp),%r10 | ||
72 | movq 2*8(%rsp),%r9 | ||
73 | movq 3*8(%rsp),%r8 | ||
74 | .endif | ||
75 | .if \skiprax | ||
76 | .else | ||
77 | movq 4*8(%rsp),%rax | ||
78 | .endif | ||
79 | .if \skiprcx | ||
80 | .else | ||
81 | movq 5*8(%rsp),%rcx | ||
82 | .endif | ||
83 | .if \skiprdx | ||
84 | .else | ||
85 | movq 6*8(%rsp),%rdx | ||
86 | .endif | ||
87 | movq 7*8(%rsp),%rsi | ||
88 | movq 8*8(%rsp),%rdi | ||
89 | .if ARG_SKIP+\addskip > 0 | ||
90 | addq $ARG_SKIP+\addskip,%rsp | ||
91 | CFI_ADJUST_CFA_OFFSET -(ARG_SKIP+\addskip) | ||
92 | .endif | ||
93 | .endm | ||
94 | |||
95 | .macro LOAD_ARGS offset | ||
96 | movq \offset(%rsp),%r11 | ||
97 | movq \offset+8(%rsp),%r10 | ||
98 | movq \offset+16(%rsp),%r9 | ||
99 | movq \offset+24(%rsp),%r8 | ||
100 | movq \offset+40(%rsp),%rcx | ||
101 | movq \offset+48(%rsp),%rdx | ||
102 | movq \offset+56(%rsp),%rsi | ||
103 | movq \offset+64(%rsp),%rdi | ||
104 | movq \offset+72(%rsp),%rax | ||
105 | .endm | ||
106 | |||
107 | #define REST_SKIP 6*8 | ||
108 | .macro SAVE_REST | ||
109 | subq $REST_SKIP,%rsp | ||
110 | CFI_ADJUST_CFA_OFFSET REST_SKIP | ||
111 | movq %rbx,5*8(%rsp) | ||
112 | CFI_REL_OFFSET rbx,5*8 | ||
113 | movq %rbp,4*8(%rsp) | ||
114 | CFI_REL_OFFSET rbp,4*8 | ||
115 | movq %r12,3*8(%rsp) | ||
116 | CFI_REL_OFFSET r12,3*8 | ||
117 | movq %r13,2*8(%rsp) | ||
118 | CFI_REL_OFFSET r13,2*8 | ||
119 | movq %r14,1*8(%rsp) | ||
120 | CFI_REL_OFFSET r14,1*8 | ||
121 | movq %r15,(%rsp) | ||
122 | CFI_REL_OFFSET r15,0*8 | ||
123 | .endm | ||
124 | |||
125 | .macro RESTORE_REST | ||
126 | movq (%rsp),%r15 | ||
127 | movq 1*8(%rsp),%r14 | ||
128 | movq 2*8(%rsp),%r13 | ||
129 | movq 3*8(%rsp),%r12 | ||
130 | movq 4*8(%rsp),%rbp | ||
131 | movq 5*8(%rsp),%rbx | ||
132 | addq $REST_SKIP,%rsp | ||
133 | CFI_ADJUST_CFA_OFFSET -(REST_SKIP) | ||
134 | .endm | ||
135 | |||
136 | .macro SAVE_ALL | ||
137 | SAVE_ARGS | ||
138 | SAVE_REST | ||
139 | .endm | ||
140 | |||
141 | .macro RESTORE_ALL addskip=0 | ||
142 | RESTORE_REST | ||
143 | RESTORE_ARGS 0,\addskip | ||
144 | .endm | ||
145 | |||
146 | .macro icebp | ||
147 | .byte 0xf1 | ||
148 | .endm | ||
149 | |||
150 | #ifdef CONFIG_FRAME_POINTER | ||
151 | #define ENTER enter | ||
152 | #define LEAVE leave | ||
153 | #else | ||
154 | #define ENTER | ||
155 | #define LEAVE | ||
156 | #endif | ||