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 7 struct unwind_table; 8 9 #ifdef CONFIG_ARM_UNWIND 10 enum { 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 22 #define PLT_ENT_STRIDE L1_CACHE_BYTES 23 #define PLT_ENT_COUNT (PLT_ENT_STRIDE / sizeof(u32)) 24 #define PLT_ENT_SIZE (sizeof(struct plt_entries) / PLT_ENT_COUNT) 25 26 struct plt_entries { 27 u32 ldr[PLT_ENT_COUNT]; 28 u32 lit[PLT_ENT_COUNT]; 29 }; 30 31 struct mod_plt_sec { 32 struct elf32_shdr *plt; 33 struct plt_entries *plt_ent; 34 int plt_count; 35 }; 36 37 struct mod_arch_specific { 38 #ifdef CONFIG_ARM_UNWIND 39 struct unwind_table *unwind[ARM_SEC_MAX]; 40 #endif 41 #ifdef CONFIG_ARM_MODULE_PLTS 42 struct mod_plt_sec core; 43 struct mod_plt_sec init; 44 #endif 45 }; 46 47 struct module; 48 u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val); 49 50 #ifdef CONFIG_THUMB2_KERNEL 51 #define HAVE_ARCH_KALLSYMS_SYMBOL_VALUE 52 static inline unsigned long kallsyms_symbol_value(const Elf_Sym *sym) 53 { 54 if (ELF_ST_TYPE(sym->st_info) == STT_FUNC) 55 return sym->st_value & ~1; 56 57 return sym->st_value; 58 } 59 #endif 60 61 #endif /* _ASM_ARM_MODULE_H */ 62