linux/arch/riscv/kernel/image-vars.h
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   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (C) 2020 Western Digital Corporation or its affiliates.
   4 * Linker script variables to be set after section resolution, as
   5 * ld.lld does not like variables assigned before SECTIONS is processed.
   6 * Based on arch/arm64/kernel/image-vars.h
   7 */
   8#ifndef __RISCV_KERNEL_IMAGE_VARS_H
   9#define __RISCV_KERNEL_IMAGE_VARS_H
  10
  11#ifndef LINKER_SCRIPT
  12#error This file should only be included in vmlinux.lds.S
  13#endif
  14
  15#ifdef CONFIG_EFI
  16
  17/*
  18 * The EFI stub has its own symbol namespace prefixed by __efistub_, to
  19 * isolate it from the kernel proper. The following symbols are legally
  20 * accessed by the stub, so provide some aliases to make them accessible.
  21 * Only include data symbols here, or text symbols of functions that are
  22 * guaranteed to be safe when executed at another offset than they were
  23 * linked at. The routines below are all implemented in assembler in a
  24 * position independent manner
  25 */
  26__efistub_memcmp                = memcmp;
  27__efistub_memchr                = memchr;
  28__efistub_memcpy                = memcpy;
  29__efistub_memmove               = memmove;
  30__efistub_memset                = memset;
  31__efistub_strlen                = strlen;
  32__efistub_strnlen               = strnlen;
  33__efistub_strcmp                = strcmp;
  34__efistub_strncmp               = strncmp;
  35__efistub_strrchr               = strrchr;
  36
  37#ifdef CONFIG_KASAN
  38__efistub___memcpy              = memcpy;
  39__efistub___memmove             = memmove;
  40__efistub___memset              = memset;
  41#endif
  42
  43__efistub__start                = _start;
  44__efistub__start_kernel         = _start_kernel;
  45__efistub__end                  = _end;
  46__efistub__edata                = _edata;
  47__efistub_screen_info           = screen_info;
  48
  49#endif
  50
  51#endif /* __RISCV_KERNEL_IMAGE_VARS_H */
  52