diff options
Diffstat (limited to 'include/asm-powerpc/asm-compat.h')
-rw-r--r-- | include/asm-powerpc/asm-compat.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/include/asm-powerpc/asm-compat.h b/include/asm-powerpc/asm-compat.h index 8e64be0cc47d..c89bd58ee283 100644 --- a/include/asm-powerpc/asm-compat.h +++ b/include/asm-powerpc/asm-compat.h | |||
@@ -14,6 +14,58 @@ | |||
14 | # define ASM_CONST(x) __ASM_CONST(x) | 14 | # define ASM_CONST(x) __ASM_CONST(x) |
15 | #endif | 15 | #endif |
16 | 16 | ||
17 | |||
18 | /* | ||
19 | * Feature section common macros | ||
20 | * | ||
21 | * Note that the entries now contain offsets between the table entry | ||
22 | * and the code rather than absolute code pointers in order to be | ||
23 | * useable with the vdso shared library. There is also an assumption | ||
24 | * that values will be negative, that is, the fixup table has to be | ||
25 | * located after the code it fixes up. | ||
26 | */ | ||
27 | #ifdef CONFIG_PPC64 | ||
28 | #ifdef __powerpc64__ | ||
29 | /* 64 bits kernel, 64 bits code */ | ||
30 | #define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \ | ||
31 | 99: \ | ||
32 | .section sect,"a"; \ | ||
33 | .align 3; \ | ||
34 | 98: \ | ||
35 | .llong msk; \ | ||
36 | .llong val; \ | ||
37 | .llong label##b-98b; \ | ||
38 | .llong 99b-98b; \ | ||
39 | .previous | ||
40 | #else /* __powerpc64__ */ | ||
41 | /* 64 bits kernel, 32 bits code (ie. vdso32) */ | ||
42 | #define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \ | ||
43 | 99: \ | ||
44 | .section sect,"a"; \ | ||
45 | .align 3; \ | ||
46 | 98: \ | ||
47 | .llong msk; \ | ||
48 | .llong val; \ | ||
49 | .long 0xffffffff; \ | ||
50 | .long label##b-98b; \ | ||
51 | .long 0xffffffff; \ | ||
52 | .long 99b-98b; \ | ||
53 | .previous | ||
54 | #endif /* !__powerpc64__ */ | ||
55 | #else /* CONFIG_PPC64 */ | ||
56 | /* 32 bits kernel, 32 bits code */ | ||
57 | #define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \ | ||
58 | 99: \ | ||
59 | .section sect,"a"; \ | ||
60 | .align 2; \ | ||
61 | 98: \ | ||
62 | .long msk; \ | ||
63 | .long val; \ | ||
64 | .long label##b-98b; \ | ||
65 | .long 99b-98b; \ | ||
66 | .previous | ||
67 | #endif /* !CONFIG_PPC64 */ | ||
68 | |||
17 | #ifdef __powerpc64__ | 69 | #ifdef __powerpc64__ |
18 | 70 | ||
19 | /* operations for longs and pointers */ | 71 | /* operations for longs and pointers */ |