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update sources to v12.2.3
[ceph.git] / ceph / src / boost / libs / context / src / asm / make_x86_64_ms_pe_masm.asm
CommitLineData
7c673cae
FG		 1
2; Copyright Oliver Kowalke 2009.
3; Distributed under the Boost Software License, Version 1.0.
4; (See accompanying file LICENSE_1_0.txt or copy at
5; http://www.boost.org/LICENSE_1_0.txt)
6
7; ----------------------------------------------------------------------------------
8; | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
9; ----------------------------------------------------------------------------------
10; | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c |
11; ----------------------------------------------------------------------------------
b32b8144 12; | SEE registers (XMM6-XMM15) |
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FG		 13; ----------------------------------------------------------------------------------
14; ----------------------------------------------------------------------------------
15; | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
16; ----------------------------------------------------------------------------------
17; | 0x20 | 0x24 | 0x28 | 0x2c | 0x30 | 0x34 | 0x38 | 0x3c |
18; ----------------------------------------------------------------------------------
b32b8144 19; | SEE registers (XMM6-XMM15) |
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FG		 20; ----------------------------------------------------------------------------------
21; ----------------------------------------------------------------------------------
22; | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
23; ----------------------------------------------------------------------------------
24; | 0xe40 | 0x44 | 0x48 | 0x4c | 0x50 | 0x54 | 0x58 | 0x5c |
25; ----------------------------------------------------------------------------------
b32b8144 26; | SEE registers (XMM6-XMM15) |
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FG		 27; ----------------------------------------------------------------------------------
28; ----------------------------------------------------------------------------------
29; | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
30; ----------------------------------------------------------------------------------
31; | 0x60 | 0x64 | 0x68 | 0x6c | 0x70 | 0x74 | 0x78 | 0x7c |
32; ----------------------------------------------------------------------------------
b32b8144 33; | SEE registers (XMM6-XMM15) |
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FG		 34; ----------------------------------------------------------------------------------
35; ----------------------------------------------------------------------------------
36; | 32 | 32 | 33 | 34 | 35 | 36 | 37 | 38 |
37; ----------------------------------------------------------------------------------
38; | 0x80 | 0x84 | 0x88 | 0x8c | 0x90 | 0x94 | 0x98 | 0x9c |
39; ----------------------------------------------------------------------------------
b32b8144 40; | SEE registers (XMM6-XMM15) |
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FG		 41; ----------------------------------------------------------------------------------
42; ----------------------------------------------------------------------------------
43; | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 |
44; ----------------------------------------------------------------------------------
45; | 0xa0 | 0xa4 | 0xa8 | 0xac | 0xb0 | 0xb4 | 0xb8 | 0xbc |
46; ----------------------------------------------------------------------------------
b32b8144
FG		 47; | fc_mxcsr|fc_x87_cw| <alignment> | fbr_strg | fc_dealloc |
48; ----------------------------------------------------------------------------------
49; ----------------------------------------------------------------------------------
50; | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 |
51; ----------------------------------------------------------------------------------
52; | 0xc0 | 0xc4 | 0xc8 | 0xcc | 0xd0 | 0xd4 | 0xd8 | 0xdc |
53; ----------------------------------------------------------------------------------
54; | limit | base | R12 | R13 |
55; ----------------------------------------------------------------------------------
56; ----------------------------------------------------------------------------------
57; | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 |
58; ----------------------------------------------------------------------------------
59; | 0xe0 | 0xe4 | 0xe8 | 0xec | 0xf0 | 0xf4 | 0xf8 | 0xfc |
60; ----------------------------------------------------------------------------------
61; | R14 | R15 | RDI | RSI |
62; ----------------------------------------------------------------------------------
63; ----------------------------------------------------------------------------------
64; | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 |
65; ----------------------------------------------------------------------------------
66; | 0x100 | 0x104 | 0x108 | 0x10c | 0x110 | 0x114 | 0x118 | 0x11c |
67; ----------------------------------------------------------------------------------
68; | RBX | RBP | hidden | RIP |
69; ----------------------------------------------------------------------------------
70; ----------------------------------------------------------------------------------
71; | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 |
72; ----------------------------------------------------------------------------------
73; | 0x120 | 0x124 | 0x128 | 0x12c | 0x130 | 0x134 | 0x138 | 0x13c |
74; ----------------------------------------------------------------------------------
75; | parameter area |
76; ----------------------------------------------------------------------------------
77; ----------------------------------------------------------------------------------
78; | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 |
79; ----------------------------------------------------------------------------------
80; | 0x140 | 0x144 | 0x148 | 0x14c | 0x150 | 0x154 | 0x158 | 0x15c |
81; ----------------------------------------------------------------------------------
82; | FCTX | DATA | |
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FG		 83; ----------------------------------------------------------------------------------
84
85; standard C library function
86EXTERN _exit:PROC
87.code
88
89; generate function table entry in .pdata and unwind information in
90make_fcontext PROC BOOST_CONTEXT_EXPORT FRAME
91 ; .xdata for a function's structured exception handling unwind behavior
92 .endprolog
93
94 ; first arg of make_fcontext() == top of context-stack
95 mov rax, rcx
96
97 ; shift address in RAX to lower 16 byte boundary
98 ; == pointer to fcontext_t and address of context stack
99 and rax, -16
100
101 ; reserve space for context-data on context-stack
102 ; on context-function entry: (RSP -0x8) % 16 == 0
b32b8144 103 sub rax, 0150h
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FG		 104
105 ; third arg of make_fcontext() == address of context-function
b32b8144
FG		 106 ; stored in RBX
107 mov [rax+0100h], r8
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FG		 108
109 ; first arg of make_fcontext() == top of context-stack
110 ; save top address of context stack as 'base'
b32b8144 111 mov [rax+0c8h], rcx
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FG		 112 ; second arg of make_fcontext() == size of context-stack
113 ; negate stack size for LEA instruction (== substraction)
114 neg rdx
115 ; compute bottom address of context stack (limit)
116 lea rcx, [rcx+rdx]
117 ; save bottom address of context stack as 'limit'
b32b8144 118 mov [rax+0c0h], rcx
7c673cae 119 ; save address of context stack limit as 'dealloction stack'
b32b8144 120 mov [rax+0b8h], rcx
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FG		 121 ; set fiber-storage to zero
122 xor rcx, rcx
b32b8144
FG		 123 mov [rax+0b0h], rcx
124
125 ; save MMX control- and status-word
126 stmxcsr [rax+0a0h]
127 ; save x87 control-word
128 fnstcw [rax+0a4h]
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FG		 129
130 ; compute address of transport_t
b32b8144 131 lea rcx, [rax+0140h]
7c673cae 132 ; store address of transport_t in hidden field
b32b8144
FG		 133 mov [rax+0110h], rcx
134
135 ; compute abs address of label trampoline
136 lea rcx, trampoline
137 ; save address of trampoline as return-address for context-function
138 ; will be entered after calling jump_fcontext() first time
139 mov [rax+0118h], rcx
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FG		 140
141 ; compute abs address of label finish
142 lea rcx, finish
b32b8144
FG		 143 ; save address of finish as return-address for context-function in RBP
144 ; will be entered after context-function returns
145 mov [rax+0108h], rcx
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FG		 146
147 ret ; return pointer to context-data
148
b32b8144
FG		 149trampoline:
150 ; store return address on stack
151 ; fix stack alignment
152 push rbp
153 ; jump to context-function
154 jmp rbx
155
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FG		 156finish:
157 ; exit code is zero
158 xor rcx, rcx
159 ; exit application
160 call _exit
161 hlt
162make_fcontext ENDP
163END
Ceph