1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (c) 2011 The Chromium OS Authors. 4 */ 5 6 /* Taken from Linux kernel, commit f56c3196 */ 7 8 #ifndef _ASM_GENERIC_SECTIONS_H_ 9 #define _ASM_GENERIC_SECTIONS_H_ 10 11 /* References to section boundaries */ 12 13 extern char _text[], _stext[], _etext[]; 14 extern char _data[], _sdata[], _edata[]; 15 extern char __bss_start[], __bss_stop[]; 16 extern char __init_begin[], __init_end[]; 17 extern char _sinittext[], _einittext[]; 18 extern char _end[], _init[]; 19 extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[]; 20 extern char __kprobes_text_start[], __kprobes_text_end[]; 21 extern char __entry_text_start[], __entry_text_end[]; 22 extern char __initdata_begin[], __initdata_end[]; 23 extern char __start_rodata[], __end_rodata[]; 24 extern char __efi_helloworld_begin[]; 25 extern char __efi_helloworld_end[]; 26 27 /* Start and end of .ctors section - used for constructor calls. */ 28 extern char __ctors_start[], __ctors_end[]; 29 30 /* function descriptor handling (if any). Override 31 * in asm/sections.h */ 32 #ifndef dereference_function_descriptor 33 #define dereference_function_descriptor(p) (p) 34 #endif 35 36 /* random extra sections (if any). Override 37 * in asm/sections.h */ 38 #ifndef arch_is_kernel_text 39 static inline int arch_is_kernel_text(unsigned long addr) 40 { 41 return 0; 42 } 43 #endif 44 45 #ifndef arch_is_kernel_data 46 static inline int arch_is_kernel_data(unsigned long addr) 47 { 48 return 0; 49 } 50 #endif 51 52 /* U-Boot-specific things begin here */ 53 54 /* Start of U-Boot text region */ 55 extern char __text_start[]; 56 57 /* This marks the end of the text region which must be relocated */ 58 extern char __image_copy_end[]; 59 60 /* 61 * This is the U-Boot entry point - prior to relocation it should be same 62 * as __text_start 63 */ 64 extern void _start(void); 65 66 /* 67 * ARM defines its symbols as char[]. Other arches define them as ulongs. 68 */ 69 #ifdef CONFIG_ARM 70 71 extern char __bss_start[]; 72 extern char __bss_end[]; 73 extern char __image_copy_start[]; 74 extern char __image_copy_end[]; 75 extern char _image_binary_end[]; 76 extern char __rel_dyn_start[]; 77 extern char __rel_dyn_end[]; 78 79 #else /* don't use offsets: */ 80 81 /* Exports from the Linker Script */ 82 extern ulong __data_end; 83 extern ulong __rel_dyn_start; 84 extern ulong __rel_dyn_end; 85 extern ulong __bss_end; 86 extern ulong _image_binary_end; 87 88 extern ulong _TEXT_BASE; /* code start */ 89 90 #endif 91 92 #endif /* _ASM_GENERIC_SECTIONS_H_ */ 93