mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 10:48:51 +00:00
ddf67daac3
The capsule signature is now part of our DTB. This is problematic when a user is allowed to change/fixup that DTB from U-Boots command line since he can overwrite the signature as well. So Instead of adding the key on the DTB, embed it in the u-boot binary it self as part of it's .rodata. This assumes that the U-Boot binary we load is authenticated by a previous boot stage loader. Reviewed-by: Masami Hiramatsu <masami.hiramatsu@linaro.org> Tested-by: Masami Hiramatsu <masami.hiramatsu@linaro.org> Tested-by: Sughosh Ganu <sughosh.ganu@linaro.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
*/
|
|
|
|
/* Taken from Linux kernel, commit f56c3196 */
|
|
|
|
#ifndef _ASM_GENERIC_SECTIONS_H_
|
|
#define _ASM_GENERIC_SECTIONS_H_
|
|
|
|
#include <linux/types.h>
|
|
|
|
/* References to section boundaries */
|
|
|
|
extern char _text[], _stext[], _etext[];
|
|
extern char _data[], _sdata[], _edata[];
|
|
extern char __bss_start[], __bss_stop[];
|
|
extern char __init_begin[], __init_end[];
|
|
extern char _sinittext[], _einittext[];
|
|
extern char _end[], _init[];
|
|
extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
|
|
extern char __kprobes_text_start[], __kprobes_text_end[];
|
|
extern char __entry_text_start[], __entry_text_end[];
|
|
extern char __initdata_begin[], __initdata_end[];
|
|
extern char __start_rodata[], __end_rodata[];
|
|
extern char __efi_helloworld_begin[];
|
|
extern char __efi_helloworld_end[];
|
|
extern char __efi_var_file_begin[];
|
|
extern char __efi_var_file_end[];
|
|
extern char __efi_capsule_sig_begin[];
|
|
extern char __efi_capsule_sig_end[];
|
|
|
|
/* Private data used by of-platdata devices/uclasses */
|
|
extern char __priv_data_start[], __priv_data_end[];
|
|
|
|
/* Start and end of .ctors section - used for constructor calls. */
|
|
extern char __ctors_start[], __ctors_end[];
|
|
|
|
/* function descriptor handling (if any). Override
|
|
* in asm/sections.h */
|
|
#ifndef dereference_function_descriptor
|
|
#define dereference_function_descriptor(p) (p)
|
|
#endif
|
|
|
|
/* random extra sections (if any). Override
|
|
* in asm/sections.h */
|
|
#ifndef arch_is_kernel_text
|
|
static inline int arch_is_kernel_text(unsigned long addr)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifndef arch_is_kernel_data
|
|
static inline int arch_is_kernel_data(unsigned long addr)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/* U-Boot-specific things begin here */
|
|
|
|
/* Start of U-Boot text region */
|
|
extern char __text_start[];
|
|
|
|
/* This marks the end of the text region which must be relocated */
|
|
extern char __image_copy_end[];
|
|
|
|
/*
|
|
* This is the U-Boot entry point - prior to relocation it should be same
|
|
* as __text_start
|
|
*/
|
|
extern void _start(void);
|
|
|
|
/*
|
|
* ARM defines its symbols as char[]. Other arches define them as ulongs.
|
|
*/
|
|
#ifdef CONFIG_ARM
|
|
|
|
extern char __bss_start[];
|
|
extern char __bss_end[];
|
|
extern char __image_copy_start[];
|
|
extern char __image_copy_end[];
|
|
extern char _image_binary_end[];
|
|
extern char __rel_dyn_start[];
|
|
extern char __rel_dyn_end[];
|
|
|
|
#else /* don't use offsets: */
|
|
|
|
/* Exports from the Linker Script */
|
|
extern ulong __data_end;
|
|
extern ulong __rel_dyn_start;
|
|
extern ulong __rel_dyn_end;
|
|
extern ulong __bss_end;
|
|
extern ulong _image_binary_end;
|
|
|
|
extern ulong _TEXT_BASE; /* code start */
|
|
|
|
#endif
|
|
|
|
#endif /* _ASM_GENERIC_SECTIONS_H_ */
|