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  • /*
     * Copyright (c) 2011 The Chromium OS Authors.
     *
    
     * SPDX-License-Identifier:	GPL-2.0+
    
     */
    
    /* Taken from Linux kernel, commit f56c3196 */
    
    #ifndef _ASM_GENERIC_SECTIONS_H_
    #define _ASM_GENERIC_SECTIONS_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[];
    
    /* 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.
    
    extern char __bss_start[];
    extern char __bss_end[];
    extern char __image_copy_start[];
    extern char __image_copy_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 _TEXT_BASE;	/* code start */
    
    #endif
    
    #endif /* _ASM_GENERIC_SECTIONS_H_ */