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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m32r/lib/putuser.S
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 'arch/m32r/lib/putuser.S')
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diff --git a/arch/m32r/lib/putuser.S b/arch/m32r/lib/putuser.S
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1/*
2 * __put_user functions.
3 *
4 * (C) Copyright 1998 Linus Torvalds
5 * (C) Copyright 2001 Hirokazu Takata
6 *
7 * These functions have a non-standard call interface
8 * to make them more efficient.
9 */
10
11#include <linux/config.h>
12
13/*
14 * __put_user_X
15 *
16 * Inputs: r0 contains the address
17 * r1 contains the value
18 *
19 * Outputs: r0 is error code (0 or -EFAULT)
20 * r1 is corrupted (will contain "current_task").
21 *
22 * These functions should not modify any other registers,
23 * as they get called from within inline assembly.
24 */
25
26#ifdef CONFIG_ISA_DUAL_ISSUE
27
28 .text
29 .balign 4
30 .globl __put_user_1
31__put_user_1:
321: stb r1, @r0 || ldi r0, #0
33 jmp r14
34
35 .balign 4
36 .globl __put_user_2
37__put_user_2:
382: sth r1, @r0 || ldi r0, #0
39 jmp r14
40
41 .balign 4
42 .globl __put_user_4
43__put_user_4:
443: st r1, @r0 || ldi r0, #0
45 jmp r14
46
47bad_put_user:
48 ldi r0, #-14 || jmp r14
49
50#else /* not CONFIG_ISA_DUAL_ISSUE */
51
52 .text
53 .balign 4
54 .globl __put_user_1
55__put_user_1:
561: stb r1, @r0
57 ldi r0, #0
58 jmp r14
59
60 .balign 4
61 .globl __put_user_2
62__put_user_2:
632: sth r1, @r0
64 ldi r0, #0
65 jmp r14
66
67 .balign 4
68 .globl __put_user_4
69__put_user_4:
703: st r1, @r0
71 ldi r0, #0
72 jmp r14
73
74bad_put_user:
75 ldi r0, #-14
76 jmp r14
77
78#endif /* not CONFIG_ISA_DUAL_ISSUE */
79
80.section __ex_table,"a"
81 .long 1b,bad_put_user
82 .long 2b,bad_put_user
83 .long 3b,bad_put_user
84.previous