Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_ARM_MODULE_H
3#define _ASM_ARM_MODULE_H
4
5#include <asm-generic/module.h>
6
7struct unwind_table;
8
9#ifdef CONFIG_ARM_UNWIND
10enum {
11 ARM_SEC_INIT,
12 ARM_SEC_DEVINIT,
13 ARM_SEC_CORE,
14 ARM_SEC_EXIT,
15 ARM_SEC_DEVEXIT,
16 ARM_SEC_HOT,
17 ARM_SEC_UNLIKELY,
18 ARM_SEC_MAX,
19};
20#endif
21
22struct mod_plt_sec {
23 struct elf32_shdr *plt;
24 int plt_count;
25};
26
27struct mod_arch_specific {
28#ifdef CONFIG_ARM_UNWIND
29 struct unwind_table *unwind[ARM_SEC_MAX];
30#endif
31#ifdef CONFIG_ARM_MODULE_PLTS
32 struct mod_plt_sec core;
33 struct mod_plt_sec init;
34#endif
35};
36
37struct module;
38u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val);
39
40/*
41 * Add the ARM architecture version to the version magic string
42 */
43#define MODULE_ARCH_VERMAGIC_ARMVSN "ARMv" __stringify(__LINUX_ARM_ARCH__) " "
44
45/* Add __virt_to_phys patching state as well */
46#ifdef CONFIG_ARM_PATCH_PHYS_VIRT
47#define MODULE_ARCH_VERMAGIC_P2V "p2v8 "
48#else
49#define MODULE_ARCH_VERMAGIC_P2V ""
50#endif
51
52/* Add instruction set architecture tag to distinguish ARM/Thumb kernels */
53#ifdef CONFIG_THUMB2_KERNEL
54#define MODULE_ARCH_VERMAGIC_ARMTHUMB "thumb2 "
55#else
56#define MODULE_ARCH_VERMAGIC_ARMTHUMB ""
57#endif
58
59#define MODULE_ARCH_VERMAGIC \
60 MODULE_ARCH_VERMAGIC_ARMVSN \
61 MODULE_ARCH_VERMAGIC_ARMTHUMB \
62 MODULE_ARCH_VERMAGIC_P2V
63
64#ifdef CONFIG_THUMB2_KERNEL
65#define HAVE_ARCH_KALLSYMS_SYMBOL_VALUE
66static inline unsigned long kallsyms_symbol_value(const Elf_Sym *sym)
67{
68 if (ELF_ST_TYPE(sym->st_info) == STT_FUNC)
69 return sym->st_value & ~1;
70
71 return sym->st_value;
72}
73#endif
74
75#endif /* _ASM_ARM_MODULE_H */