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143580ec KG |
1 | /* |
2 | * Special support for eabi and SVR4 | |
3 | * | |
4 | * Copyright (C) 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc. | |
5 | * Copyright 2008 Freescale Semiconductor, Inc. | |
6 | * Written By Michael Meissner | |
7 | * | |
8 | * Based on gcc/config/rs6000/crtsavres.asm from gcc | |
9 | * | |
10 | * This file is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2, or (at your option) any | |
13 | * later version. | |
14 | * | |
15 | * In addition to the permissions in the GNU General Public License, the | |
16 | * Free Software Foundation gives you unlimited permission to link the | |
17 | * compiled version of this file with other programs, and to distribute | |
18 | * those programs without any restriction coming from the use of this | |
19 | * file. (The General Public License restrictions do apply in other | |
20 | * respects; for example, they cover modification of the file, and | |
21 | * distribution when not linked into another program.) | |
22 | * | |
23 | * This file is distributed in the hope that it will be useful, but | |
24 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 | * General Public License for more details. | |
27 | * | |
28 | * You should have received a copy of the GNU General Public License | |
29 | * along with this program; see the file COPYING. If not, write to | |
30 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, | |
31 | * Boston, MA 02110-1301, USA. | |
32 | * | |
33 | * As a special exception, if you link this library with files | |
34 | * compiled with GCC to produce an executable, this does not cause | |
35 | * the resulting executable to be covered by the GNU General Public License. | |
36 | * This exception does not however invalidate any other reasons why | |
37 | * the executable file might be covered by the GNU General Public License. | |
38 | */ | |
39 | ||
40 | .file "crtsavres.S" | |
41 | .section ".text" | |
42 | ||
43 | /* On PowerPC64 Linux, these functions are provided by the linker. */ | |
44 | #ifndef __powerpc64__ | |
45 | ||
46 | #define _GLOBAL(name) \ | |
47 | .type name,@function; \ | |
48 | .globl name; \ | |
49 | name: | |
50 | ||
51 | /* Routines for saving integer registers, called by the compiler. */ | |
52 | /* Called with r11 pointing to the stack header word of the caller of the */ | |
53 | /* function, just beyond the end of the integer save area. */ | |
54 | ||
55 | _GLOBAL(_savegpr_14) | |
56 | _GLOBAL(_save32gpr_14) | |
57 | stw 14,-72(11) /* save gp registers */ | |
58 | _GLOBAL(_savegpr_15) | |
59 | _GLOBAL(_save32gpr_15) | |
60 | stw 15,-68(11) | |
61 | _GLOBAL(_savegpr_16) | |
62 | _GLOBAL(_save32gpr_16) | |
63 | stw 16,-64(11) | |
64 | _GLOBAL(_savegpr_17) | |
65 | _GLOBAL(_save32gpr_17) | |
66 | stw 17,-60(11) | |
67 | _GLOBAL(_savegpr_18) | |
68 | _GLOBAL(_save32gpr_18) | |
69 | stw 18,-56(11) | |
70 | _GLOBAL(_savegpr_19) | |
71 | _GLOBAL(_save32gpr_19) | |
72 | stw 19,-52(11) | |
73 | _GLOBAL(_savegpr_20) | |
74 | _GLOBAL(_save32gpr_20) | |
75 | stw 20,-48(11) | |
76 | _GLOBAL(_savegpr_21) | |
77 | _GLOBAL(_save32gpr_21) | |
78 | stw 21,-44(11) | |
79 | _GLOBAL(_savegpr_22) | |
80 | _GLOBAL(_save32gpr_22) | |
81 | stw 22,-40(11) | |
82 | _GLOBAL(_savegpr_23) | |
83 | _GLOBAL(_save32gpr_23) | |
84 | stw 23,-36(11) | |
85 | _GLOBAL(_savegpr_24) | |
86 | _GLOBAL(_save32gpr_24) | |
87 | stw 24,-32(11) | |
88 | _GLOBAL(_savegpr_25) | |
89 | _GLOBAL(_save32gpr_25) | |
90 | stw 25,-28(11) | |
91 | _GLOBAL(_savegpr_26) | |
92 | _GLOBAL(_save32gpr_26) | |
93 | stw 26,-24(11) | |
94 | _GLOBAL(_savegpr_27) | |
95 | _GLOBAL(_save32gpr_27) | |
96 | stw 27,-20(11) | |
97 | _GLOBAL(_savegpr_28) | |
98 | _GLOBAL(_save32gpr_28) | |
99 | stw 28,-16(11) | |
100 | _GLOBAL(_savegpr_29) | |
101 | _GLOBAL(_save32gpr_29) | |
102 | stw 29,-12(11) | |
103 | _GLOBAL(_savegpr_30) | |
104 | _GLOBAL(_save32gpr_30) | |
105 | stw 30,-8(11) | |
106 | _GLOBAL(_savegpr_31) | |
107 | _GLOBAL(_save32gpr_31) | |
108 | stw 31,-4(11) | |
109 | blr | |
110 | ||
111 | /* Routines for restoring integer registers, called by the compiler. */ | |
112 | /* Called with r11 pointing to the stack header word of the caller of the */ | |
113 | /* function, just beyond the end of the integer restore area. */ | |
114 | ||
115 | _GLOBAL(_restgpr_14) | |
116 | _GLOBAL(_rest32gpr_14) | |
117 | lwz 14,-72(11) /* restore gp registers */ | |
118 | _GLOBAL(_restgpr_15) | |
119 | _GLOBAL(_rest32gpr_15) | |
120 | lwz 15,-68(11) | |
121 | _GLOBAL(_restgpr_16) | |
122 | _GLOBAL(_rest32gpr_16) | |
123 | lwz 16,-64(11) | |
124 | _GLOBAL(_restgpr_17) | |
125 | _GLOBAL(_rest32gpr_17) | |
126 | lwz 17,-60(11) | |
127 | _GLOBAL(_restgpr_18) | |
128 | _GLOBAL(_rest32gpr_18) | |
129 | lwz 18,-56(11) | |
130 | _GLOBAL(_restgpr_19) | |
131 | _GLOBAL(_rest32gpr_19) | |
132 | lwz 19,-52(11) | |
133 | _GLOBAL(_restgpr_20) | |
134 | _GLOBAL(_rest32gpr_20) | |
135 | lwz 20,-48(11) | |
136 | _GLOBAL(_restgpr_21) | |
137 | _GLOBAL(_rest32gpr_21) | |
138 | lwz 21,-44(11) | |
139 | _GLOBAL(_restgpr_22) | |
140 | _GLOBAL(_rest32gpr_22) | |
141 | lwz 22,-40(11) | |
142 | _GLOBAL(_restgpr_23) | |
143 | _GLOBAL(_rest32gpr_23) | |
144 | lwz 23,-36(11) | |
145 | _GLOBAL(_restgpr_24) | |
146 | _GLOBAL(_rest32gpr_24) | |
147 | lwz 24,-32(11) | |
148 | _GLOBAL(_restgpr_25) | |
149 | _GLOBAL(_rest32gpr_25) | |
150 | lwz 25,-28(11) | |
151 | _GLOBAL(_restgpr_26) | |
152 | _GLOBAL(_rest32gpr_26) | |
153 | lwz 26,-24(11) | |
154 | _GLOBAL(_restgpr_27) | |
155 | _GLOBAL(_rest32gpr_27) | |
156 | lwz 27,-20(11) | |
157 | _GLOBAL(_restgpr_28) | |
158 | _GLOBAL(_rest32gpr_28) | |
159 | lwz 28,-16(11) | |
160 | _GLOBAL(_restgpr_29) | |
161 | _GLOBAL(_rest32gpr_29) | |
162 | lwz 29,-12(11) | |
163 | _GLOBAL(_restgpr_30) | |
164 | _GLOBAL(_rest32gpr_30) | |
165 | lwz 30,-8(11) | |
166 | _GLOBAL(_restgpr_31) | |
167 | _GLOBAL(_rest32gpr_31) | |
168 | lwz 31,-4(11) | |
169 | blr | |
170 | ||
171 | /* Routines for restoring integer registers, called by the compiler. */ | |
172 | /* Called with r11 pointing to the stack header word of the caller of the */ | |
173 | /* function, just beyond the end of the integer restore area. */ | |
174 | ||
175 | _GLOBAL(_restgpr_14_x) | |
176 | _GLOBAL(_rest32gpr_14_x) | |
177 | lwz 14,-72(11) /* restore gp registers */ | |
178 | _GLOBAL(_restgpr_15_x) | |
179 | _GLOBAL(_rest32gpr_15_x) | |
180 | lwz 15,-68(11) | |
181 | _GLOBAL(_restgpr_16_x) | |
182 | _GLOBAL(_rest32gpr_16_x) | |
183 | lwz 16,-64(11) | |
184 | _GLOBAL(_restgpr_17_x) | |
185 | _GLOBAL(_rest32gpr_17_x) | |
186 | lwz 17,-60(11) | |
187 | _GLOBAL(_restgpr_18_x) | |
188 | _GLOBAL(_rest32gpr_18_x) | |
189 | lwz 18,-56(11) | |
190 | _GLOBAL(_restgpr_19_x) | |
191 | _GLOBAL(_rest32gpr_19_x) | |
192 | lwz 19,-52(11) | |
193 | _GLOBAL(_restgpr_20_x) | |
194 | _GLOBAL(_rest32gpr_20_x) | |
195 | lwz 20,-48(11) | |
196 | _GLOBAL(_restgpr_21_x) | |
197 | _GLOBAL(_rest32gpr_21_x) | |
198 | lwz 21,-44(11) | |
199 | _GLOBAL(_restgpr_22_x) | |
200 | _GLOBAL(_rest32gpr_22_x) | |
201 | lwz 22,-40(11) | |
202 | _GLOBAL(_restgpr_23_x) | |
203 | _GLOBAL(_rest32gpr_23_x) | |
204 | lwz 23,-36(11) | |
205 | _GLOBAL(_restgpr_24_x) | |
206 | _GLOBAL(_rest32gpr_24_x) | |
207 | lwz 24,-32(11) | |
208 | _GLOBAL(_restgpr_25_x) | |
209 | _GLOBAL(_rest32gpr_25_x) | |
210 | lwz 25,-28(11) | |
211 | _GLOBAL(_restgpr_26_x) | |
212 | _GLOBAL(_rest32gpr_26_x) | |
213 | lwz 26,-24(11) | |
214 | _GLOBAL(_restgpr_27_x) | |
215 | _GLOBAL(_rest32gpr_27_x) | |
216 | lwz 27,-20(11) | |
217 | _GLOBAL(_restgpr_28_x) | |
218 | _GLOBAL(_rest32gpr_28_x) | |
219 | lwz 28,-16(11) | |
220 | _GLOBAL(_restgpr_29_x) | |
221 | _GLOBAL(_rest32gpr_29_x) | |
222 | lwz 29,-12(11) | |
223 | _GLOBAL(_restgpr_30_x) | |
224 | _GLOBAL(_rest32gpr_30_x) | |
225 | lwz 30,-8(11) | |
226 | _GLOBAL(_restgpr_31_x) | |
227 | _GLOBAL(_rest32gpr_31_x) | |
228 | lwz 0,4(11) | |
229 | lwz 31,-4(11) | |
230 | mtlr 0 | |
231 | mr 1,11 | |
232 | blr | |
233 | #endif |