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-rw-r--r--arch/powerpc/boot/Makefile2
-rw-r--r--arch/powerpc/boot/crtsavres.S233
2 files changed, 234 insertions, 1 deletions
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index d53b84e761a9..1cee2f9fdf06 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -51,7 +51,7 @@ $(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \
51 $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader)) 51 $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
52 52
53src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c 53src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
54src-wlib := string.S crt0.S stdio.c main.c \ 54src-wlib := string.S crt0.S crtsavres.S stdio.c main.c \
55 $(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \ 55 $(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \
56 ns16550.c serial.c simple_alloc.c div64.S util.S \ 56 ns16550.c serial.c simple_alloc.c div64.S util.S \
57 gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \ 57 gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
diff --git a/arch/powerpc/boot/crtsavres.S b/arch/powerpc/boot/crtsavres.S
new file mode 100644
index 000000000000..f3d9b35c07d4
--- /dev/null
+++ b/arch/powerpc/boot/crtsavres.S
@@ -0,0 +1,233 @@
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; \
49name:
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
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