projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 22823ab4 AV |
1 | #ifndef __ASM_GENERIC_EXPORT_H |
| 2 | #define __ASM_GENERIC_EXPORT_H | |
| 3 | ||
| 4 | #ifndef KSYM_FUNC | |
| 5 | #define KSYM_FUNC(x) x | |
| 6 | #endif | |
| 7 | #ifdef CONFIG_64BIT | |
| 8 | #define __put .quad | |
| 9 | #ifndef KSYM_ALIGN | |
| 10 | #define KSYM_ALIGN 8 | |
| 11 | #endif | |
| 22823ab4 AV |
12 | #else |
| 13 | #define __put .long | |
| 14 | #ifndef KSYM_ALIGN | |
| 15 | #define KSYM_ALIGN 4 | |
| 16 | #endif | |
| 71810db2 | 17 | #endif |
| 22823ab4 AV |
18 | #ifndef KCRC_ALIGN |
| 19 | #define KCRC_ALIGN 4 | |
| 20 | #endif | |
| 22823ab4 | 21 | |
| 22823ab4 AV |
22 | /* |
| 23 | * note on .section use: @progbits vs %progbits nastiness doesn't matter, | |
| 24 | * since we immediately emit into those sections anyway. | |
| 25 | */ | |
| 26 | .macro ___EXPORT_SYMBOL name,val,sec | |
| 27 | #ifdef CONFIG_MODULES | |
| 94e58e0a | 28 | .globl __ksymtab_\name |
| 22823ab4 AV |
29 | .section ___ksymtab\sec+\name,"a" |
| 30 | .balign KSYM_ALIGN | |
| 94e58e0a MY |
31 | __ksymtab_\name: |
| 32 | __put \val, __kstrtab_\name | |
| 22823ab4 AV |
33 | .previous |
| 34 | .section __ksymtab_strings,"a" | |
| 94e58e0a | 35 | __kstrtab_\name: |
| 22823ab4 | 36 | .asciz "\name" |
| 22823ab4 AV |
37 | .previous |
| 38 | #ifdef CONFIG_MODVERSIONS | |
| 39 | .section ___kcrctab\sec+\name,"a" | |
| 40 | .balign KCRC_ALIGN | |
| 94e58e0a | 41 | __kcrctab_\name: |
| 71810db2 | 42 | #if defined(CONFIG_MODULE_REL_CRCS) |
| 94e58e0a | 43 | .long __crc_\name - . |
| 71810db2 | 44 | #else |
| 94e58e0a | 45 | .long __crc_\name |
| 71810db2 | 46 | #endif |
| 94e58e0a | 47 | .weak __crc_\name |
| 22823ab4 AV |
48 | .previous |
| 49 | #endif | |
| 50 | #endif | |
| 51 | .endm | |
| 52 | #undef __put | |
| 53 | ||
| 54 | #if defined(__KSYM_DEPS__) | |
| 55 | ||
| 56 | #define __EXPORT_SYMBOL(sym, val, sec) === __KSYM_##sym === | |
| 57 | ||
| 58 | #elif defined(CONFIG_TRIM_UNUSED_KSYMS) | |
| 59 | ||
| 60 | #include <linux/kconfig.h> | |
| 61 | #include <generated/autoksyms.h> | |
| 62 | ||
| 63 | #define __EXPORT_SYMBOL(sym, val, sec) \ | |
| c0a0aba8 | 64 | __cond_export_sym(sym, val, sec, __is_defined(__KSYM_##sym)) |
| 22823ab4 AV |
65 | #define __cond_export_sym(sym, val, sec, conf) \ |
| 66 | ___cond_export_sym(sym, val, sec, conf) | |
| 67 | #define ___cond_export_sym(sym, val, sec, enabled) \ | |
| 68 | __cond_export_sym_##enabled(sym, val, sec) | |
| 69 | #define __cond_export_sym_1(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec | |
| 70 | #define __cond_export_sym_0(sym, val, sec) /* nothing */ | |
| 71 | ||
| 72 | #else | |
| 73 | #define __EXPORT_SYMBOL(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec | |
| 74 | #endif | |
| 75 | ||
| 76 | #define EXPORT_SYMBOL(name) \ | |
| 94e58e0a | 77 | __EXPORT_SYMBOL(name, KSYM_FUNC(name),) |
| 22823ab4 | 78 | #define EXPORT_SYMBOL_GPL(name) \ |
| 94e58e0a | 79 | __EXPORT_SYMBOL(name, KSYM_FUNC(name), _gpl) |
| 22823ab4 | 80 | #define EXPORT_DATA_SYMBOL(name) \ |
| 94e58e0a | 81 | __EXPORT_SYMBOL(name, name,) |
| 22823ab4 | 82 | #define EXPORT_DATA_SYMBOL_GPL(name) \ |
| 94e58e0a | 83 | __EXPORT_SYMBOL(name, name,_gpl) |
| 22823ab4 AV |
84 | |
| 85 | #endif |