projects / mirror_ubuntu-focal-kernel.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 | |
| 22823ab4 AV |
8 | #ifndef KSYM_ALIGN |
| 9 | #define KSYM_ALIGN 8 | |
| 10 | #endif | |
| 22823ab4 | 11 | #else |
| 22823ab4 AV |
12 | #ifndef KSYM_ALIGN |
| 13 | #define KSYM_ALIGN 4 | |
| 14 | #endif | |
| 71810db2 | 15 | #endif |
| 22823ab4 AV |
16 | #ifndef KCRC_ALIGN |
| 17 | #define KCRC_ALIGN 4 | |
| 18 | #endif | |
| 22823ab4 | 19 | |
| 7290d580 AB |
20 | .macro __put, val, name |
| 21 | #ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS | |
| 22 | .long \val - ., \name - . | |
| 23 | #elif defined(CONFIG_64BIT) | |
| 24 | .quad \val, \name | |
| 25 | #else | |
| 26 | .long \val, \name | |
| 27 | #endif | |
| 28 | .endm | |
| 29 | ||
| 22823ab4 AV |
30 | /* |
| 31 | * note on .section use: @progbits vs %progbits nastiness doesn't matter, | |
| 32 | * since we immediately emit into those sections anyway. | |
| 33 | */ | |
| 34 | .macro ___EXPORT_SYMBOL name,val,sec | |
| 35 | #ifdef CONFIG_MODULES | |
| 94e58e0a | 36 | .globl __ksymtab_\name |
| 22823ab4 AV |
37 | .section ___ksymtab\sec+\name,"a" |
| 38 | .balign KSYM_ALIGN | |
| 94e58e0a MY |
39 | __ksymtab_\name: |
| 40 | __put \val, __kstrtab_\name | |
| 22823ab4 AV |
41 | .previous |
| 42 | .section __ksymtab_strings,"a" | |
| 94e58e0a | 43 | __kstrtab_\name: |
| 22823ab4 | 44 | .asciz "\name" |
| 22823ab4 AV |
45 | .previous |
| 46 | #ifdef CONFIG_MODVERSIONS | |
| 47 | .section ___kcrctab\sec+\name,"a" | |
| 48 | .balign KCRC_ALIGN | |
| 94e58e0a | 49 | __kcrctab_\name: |
| 71810db2 | 50 | #if defined(CONFIG_MODULE_REL_CRCS) |
| 94e58e0a | 51 | .long __crc_\name - . |
| 71810db2 | 52 | #else |
| 94e58e0a | 53 | .long __crc_\name |
| 71810db2 | 54 | #endif |
| 94e58e0a | 55 | .weak __crc_\name |
| 22823ab4 AV |
56 | .previous |
| 57 | #endif | |
| 58 | #endif | |
| 59 | .endm | |
| 60 | #undef __put | |
| 61 | ||
| bbda5ec6 | 62 | #if defined(CONFIG_TRIM_UNUSED_KSYMS) |
| 22823ab4 AV |
63 | |
| 64 | #include <linux/kconfig.h> | |
| 65 | #include <generated/autoksyms.h> | |
| 66 | ||
| bbda5ec6 MY |
67 | .macro __ksym_marker sym |
| 68 | .section ".discard.ksym","a" | |
| 69 | __ksym_marker_\sym: | |
| 70 | .previous | |
| 71 | .endm | |
| 72 | ||
| 22823ab4 | 73 | #define __EXPORT_SYMBOL(sym, val, sec) \ |
| bbda5ec6 | 74 | __ksym_marker sym; \ |
| c0a0aba8 | 75 | __cond_export_sym(sym, val, sec, __is_defined(__KSYM_##sym)) |
| 22823ab4 AV |
76 | #define __cond_export_sym(sym, val, sec, conf) \ |
| 77 | ___cond_export_sym(sym, val, sec, conf) | |
| 78 | #define ___cond_export_sym(sym, val, sec, enabled) \ | |
| 79 | __cond_export_sym_##enabled(sym, val, sec) | |
| 80 | #define __cond_export_sym_1(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec | |
| 81 | #define __cond_export_sym_0(sym, val, sec) /* nothing */ | |
| 82 | ||
| 83 | #else | |
| 84 | #define __EXPORT_SYMBOL(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec | |
| 85 | #endif | |
| 86 | ||
| 87 | #define EXPORT_SYMBOL(name) \ | |
| 94e58e0a | 88 | __EXPORT_SYMBOL(name, KSYM_FUNC(name),) |
| 22823ab4 | 89 | #define EXPORT_SYMBOL_GPL(name) \ |
| 94e58e0a | 90 | __EXPORT_SYMBOL(name, KSYM_FUNC(name), _gpl) |
| 22823ab4 | 91 | #define EXPORT_DATA_SYMBOL(name) \ |
| 94e58e0a | 92 | __EXPORT_SYMBOL(name, name,) |
| 22823ab4 | 93 | #define EXPORT_DATA_SYMBOL_GPL(name) \ |
| 94e58e0a | 94 | __EXPORT_SYMBOL(name, name,_gpl) |
| 22823ab4 AV |
95 | |
| 96 | #endif |