1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _ASM_ARM_MODULE_H
3*4882a593Smuzhiyun #define _ASM_ARM_MODULE_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <asm-generic/module.h>
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun struct unwind_table;
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #ifdef CONFIG_ARM_UNWIND
10*4882a593Smuzhiyun enum {
11*4882a593Smuzhiyun ARM_SEC_INIT,
12*4882a593Smuzhiyun ARM_SEC_DEVINIT,
13*4882a593Smuzhiyun ARM_SEC_CORE,
14*4882a593Smuzhiyun ARM_SEC_EXIT,
15*4882a593Smuzhiyun ARM_SEC_DEVEXIT,
16*4882a593Smuzhiyun ARM_SEC_HOT,
17*4882a593Smuzhiyun ARM_SEC_UNLIKELY,
18*4882a593Smuzhiyun ARM_SEC_MAX,
19*4882a593Smuzhiyun };
20*4882a593Smuzhiyun #endif
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #define PLT_ENT_STRIDE L1_CACHE_BYTES
23*4882a593Smuzhiyun #define PLT_ENT_COUNT (PLT_ENT_STRIDE / sizeof(u32))
24*4882a593Smuzhiyun #define PLT_ENT_SIZE (sizeof(struct plt_entries) / PLT_ENT_COUNT)
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun struct plt_entries {
27*4882a593Smuzhiyun u32 ldr[PLT_ENT_COUNT];
28*4882a593Smuzhiyun u32 lit[PLT_ENT_COUNT];
29*4882a593Smuzhiyun };
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun struct mod_plt_sec {
32*4882a593Smuzhiyun struct elf32_shdr *plt;
33*4882a593Smuzhiyun struct plt_entries *plt_ent;
34*4882a593Smuzhiyun int plt_count;
35*4882a593Smuzhiyun };
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun struct mod_arch_specific {
38*4882a593Smuzhiyun #ifdef CONFIG_ARM_UNWIND
39*4882a593Smuzhiyun struct unwind_table *unwind[ARM_SEC_MAX];
40*4882a593Smuzhiyun #endif
41*4882a593Smuzhiyun #ifdef CONFIG_ARM_MODULE_PLTS
42*4882a593Smuzhiyun struct mod_plt_sec core;
43*4882a593Smuzhiyun struct mod_plt_sec init;
44*4882a593Smuzhiyun #endif
45*4882a593Smuzhiyun };
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun struct module;
48*4882a593Smuzhiyun u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val);
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun #ifdef CONFIG_THUMB2_KERNEL
51*4882a593Smuzhiyun #define HAVE_ARCH_KALLSYMS_SYMBOL_VALUE
kallsyms_symbol_value(const Elf_Sym * sym)52*4882a593Smuzhiyun static inline unsigned long kallsyms_symbol_value(const Elf_Sym *sym)
53*4882a593Smuzhiyun {
54*4882a593Smuzhiyun if (ELF_ST_TYPE(sym->st_info) == STT_FUNC)
55*4882a593Smuzhiyun return sym->st_value & ~1;
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun return sym->st_value;
58*4882a593Smuzhiyun }
59*4882a593Smuzhiyun #endif
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun #endif /* _ASM_ARM_MODULE_H */
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