/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_ARM_MODULE_H
#define _ASM_ARM_MODULE_H

#include <asm-generic/module.h>
#include <asm/unwind.h>

#ifdef CONFIG_ARM_UNWIND
#define ELF_SECTION_UNWIND 0x70000001
#endif

#define PLT_ENT_STRIDE        L1_CACHE_BYTES
#define PLT_ENT_COUNT        (PLT_ENT_STRIDE / sizeof(u32))
#define PLT_ENT_SIZE        (sizeof(struct plt_entries) / PLT_ENT_COUNT)

struct plt_entries {
    u32    ldr[PLT_ENT_COUNT];
    u32    lit[PLT_ENT_COUNT];
};

struct mod_plt_sec {
    struct elf32_shdr    *plt;
    struct plt_entries    *plt_ent;
    int            plt_count;
};

struct mod_arch_specific {
#ifdef CONFIG_ARM_UNWIND
    struct list_head unwind_list;
    struct unwind_table *init_table;
#endif
#ifdef CONFIG_ARM_MODULE_PLTS
    struct mod_plt_sec    core;
    struct mod_plt_sec    init;
#endif
};

struct module;
u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val);
#ifdef CONFIG_ARM_MODULE_PLTS
bool in_module_plt(unsigned long loc);
#else
static inline bool in_module_plt(unsigned long loc) { return false; }
#endif

#ifdef CONFIG_THUMB2_KERNEL
#define HAVE_ARCH_KALLSYMS_SYMBOL_VALUE
static inline unsigned long kallsyms_symbol_value(const Elf_Sym *sym)
{
    if (ELF_ST_TYPE(sym->st_info) == STT_FUNC)
        return sym->st_value & ~1;

    return sym->st_value;
}
#endif

#endif /* _ASM_ARM_MODULE_H */