1 /* 2 * Copyright (c) 2011 The Chromium OS Authors. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 /* Taken from Linux kernel, commit f56c3196 */ 8 9 #ifndef _ASM_GENERIC_SECTIONS_H_ 10 #define _ASM_GENERIC_SECTIONS_H_ 11 12 /* References to section boundaries */ 13 14 extern char _text[], _stext[], _etext[]; 15 extern char _data[], _sdata[], _edata[]; 16 extern char __bss_start[], __bss_stop[]; 17 extern char __init_begin[], __init_end[]; 18 extern char _sinittext[], _einittext[]; 19 extern char _end[], _init[]; 20 extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[]; 21 extern char __kprobes_text_start[], __kprobes_text_end[]; 22 extern char __entry_text_start[], __entry_text_end[]; 23 extern char __initdata_begin[], __initdata_end[]; 24 extern char __start_rodata[], __end_rodata[]; 25 extern char __efi_hello_world_begin[]; 26 extern char __efi_hello_world_end[]; 27 28 /* Start and end of .ctors section - used for constructor calls. */ 29 extern char __ctors_start[], __ctors_end[]; 30 31 /* function descriptor handling (if any). Override 32 * in asm/sections.h */ 33 #ifndef dereference_function_descriptor 34 #define dereference_function_descriptor(p) (p) 35 #endif 36 37 /* random extra sections (if any). Override 38 * in asm/sections.h */ 39 #ifndef arch_is_kernel_text 40 static inline int arch_is_kernel_text(unsigned long addr) 41 { 42 return 0; 43 } 44 #endif 45 46 #ifndef arch_is_kernel_data 47 static inline int arch_is_kernel_data(unsigned long addr) 48 { 49 return 0; 50 } 51 #endif 52 53 /* U-Boot-specific things begin here */ 54 55 /* Start of U-Boot text region */ 56 extern char __text_start[]; 57 58 /* This marks the end of the text region which must be relocated */ 59 extern char __image_copy_end[]; 60 61 /* 62 * This is the U-Boot entry point - prior to relocation it should be same 63 * as __text_start 64 */ 65 extern void _start(void); 66 67 /* 68 * ARM defines its symbols as char[]. Other arches define them as ulongs. 69 */ 70 #ifdef CONFIG_ARM 71 72 extern char __bss_start[]; 73 extern char __bss_end[]; 74 extern char __image_copy_start[]; 75 extern char __image_copy_end[]; 76 extern char _image_binary_end[]; 77 extern char __rel_dyn_start[]; 78 extern char __rel_dyn_end[]; 79 80 #else /* don't use offsets: */ 81 82 /* Exports from the Linker Script */ 83 extern ulong __data_end; 84 extern ulong __rel_dyn_start; 85 extern ulong __rel_dyn_end; 86 extern ulong __bss_end; 87 extern ulong _image_binary_end; 88 89 extern ulong _TEXT_BASE; /* code start */ 90 91 #endif 92 93 #endif /* _ASM_GENERIC_SECTIONS_H_ */ 94