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Diffstat (limited to 'arch/riscv/kernel/image-vars.h')
| -rw-r--r-- | arch/riscv/kernel/image-vars.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/riscv/kernel/image-vars.h b/arch/riscv/kernel/image-vars.h new file mode 100644 index 000000000000..8c212efb37a6 --- /dev/null +++ b/arch/riscv/kernel/image-vars.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 Western Digital Corporation or its affiliates. + * Linker script variables to be set after section resolution, as + * ld.lld does not like variables assigned before SECTIONS is processed. + * Based on arch/arm64/kerne/image-vars.h + */ +#ifndef __RISCV_KERNEL_IMAGE_VARS_H +#define __RISCV_KERNEL_IMAGE_VARS_H + +#ifndef LINKER_SCRIPT +#error This file should only be included in vmlinux.lds.S +#endif + +#ifdef CONFIG_EFI + +/* + * The EFI stub has its own symbol namespace prefixed by __efistub_, to + * isolate it from the kernel proper. The following symbols are legally + * accessed by the stub, so provide some aliases to make them accessible. + * Only include data symbols here, or text symbols of functions that are + * guaranteed to be safe when executed at another offset than they were + * linked at. The routines below are all implemented in assembler in a + * position independent manner + */ +__efistub_memcmp = memcmp; +__efistub_memchr = memchr; +__efistub_memcpy = memcpy; +__efistub_memmove = memmove; +__efistub_memset = memset; +__efistub_strlen = strlen; +__efistub_strnlen = strnlen; +__efistub_strcmp = strcmp; +__efistub_strncmp = strncmp; +__efistub_strrchr = strrchr; + +#ifdef CONFIG_KASAN +__efistub___memcpy = memcpy; +__efistub___memmove = memmove; +__efistub___memset = memset; +#endif + +__efistub__start = _start; +__efistub__start_kernel = _start_kernel; +__efistub__end = _end; +__efistub__edata = _edata; +__efistub_screen_info = screen_info; + +#endif + +#endif /* __RISCV_KERNEL_IMAGE_VARS_H */ |