118652864SSimon Glass /* 218652864SSimon Glass * Copyright (c) 2011 The Chromium OS Authors. 318652864SSimon Glass * 4*1a459660SWolfgang Denk * SPDX-License-Identifier: GPL-2.0+ 518652864SSimon Glass */ 618652864SSimon Glass 718652864SSimon Glass /* Taken from Linux kernel, commit f56c3196 */ 818652864SSimon Glass 918652864SSimon Glass #ifndef _ASM_GENERIC_SECTIONS_H_ 1018652864SSimon Glass #define _ASM_GENERIC_SECTIONS_H_ 1118652864SSimon Glass 1218652864SSimon Glass /* References to section boundaries */ 1318652864SSimon Glass 1418652864SSimon Glass extern char _text[], _stext[], _etext[]; 1518652864SSimon Glass extern char _data[], _sdata[], _edata[]; 1618652864SSimon Glass extern char __bss_start[], __bss_stop[]; 1718652864SSimon Glass extern char __init_begin[], __init_end[]; 1818652864SSimon Glass extern char _sinittext[], _einittext[]; 19a733b06bSSimon Glass extern char _end[], _init[]; 2018652864SSimon Glass extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[]; 2118652864SSimon Glass extern char __kprobes_text_start[], __kprobes_text_end[]; 2218652864SSimon Glass extern char __entry_text_start[], __entry_text_end[]; 2318652864SSimon Glass extern char __initdata_begin[], __initdata_end[]; 2418652864SSimon Glass extern char __start_rodata[], __end_rodata[]; 2518652864SSimon Glass 2618652864SSimon Glass /* Start and end of .ctors section - used for constructor calls. */ 2718652864SSimon Glass extern char __ctors_start[], __ctors_end[]; 2818652864SSimon Glass 2918652864SSimon Glass /* function descriptor handling (if any). Override 3018652864SSimon Glass * in asm/sections.h */ 3118652864SSimon Glass #ifndef dereference_function_descriptor 3218652864SSimon Glass #define dereference_function_descriptor(p) (p) 3318652864SSimon Glass #endif 3418652864SSimon Glass 3518652864SSimon Glass /* random extra sections (if any). Override 3618652864SSimon Glass * in asm/sections.h */ 3718652864SSimon Glass #ifndef arch_is_kernel_text 3818652864SSimon Glass static inline int arch_is_kernel_text(unsigned long addr) 3918652864SSimon Glass { 4018652864SSimon Glass return 0; 4118652864SSimon Glass } 4218652864SSimon Glass #endif 4318652864SSimon Glass 4418652864SSimon Glass #ifndef arch_is_kernel_data 4518652864SSimon Glass static inline int arch_is_kernel_data(unsigned long addr) 4618652864SSimon Glass { 4718652864SSimon Glass return 0; 4818652864SSimon Glass } 4918652864SSimon Glass #endif 5018652864SSimon Glass 5118652864SSimon Glass /* U-Boot-specific things begin here */ 5218652864SSimon Glass 5318652864SSimon Glass /* Start of U-Boot text region */ 5418652864SSimon Glass extern char __text_start[]; 5518652864SSimon Glass 5618652864SSimon Glass /* This marks the end of the text region which must be relocated */ 5718652864SSimon Glass extern char __image_copy_end[]; 5818652864SSimon Glass 5918652864SSimon Glass /* 6018652864SSimon Glass * This is the U-Boot entry point - prior to relocation it should be same 6118652864SSimon Glass * as __text_start 6218652864SSimon Glass */ 6318652864SSimon Glass extern void _start(void); 6418652864SSimon Glass 6518652864SSimon Glass /* 6618652864SSimon Glass * ARM needs to use offsets for symbols, since the values of some symbols 6718652864SSimon Glass * are not resolved prior to relocation (and are just 0). Maybe this can be 6818652864SSimon Glass * resolved, or maybe other architectures are similar, iwc this should be 6918652864SSimon Glass * promoted to an architecture option. 7018652864SSimon Glass */ 7118652864SSimon Glass #ifdef CONFIG_ARM 7218652864SSimon Glass #define CONFIG_SYS_SYM_OFFSETS 7318652864SSimon Glass #endif 7418652864SSimon Glass 7518652864SSimon Glass #ifdef CONFIG_SYS_SYM_OFFSETS 7618652864SSimon Glass /* Start/end of the relocation entries, as an offset from _start */ 7718652864SSimon Glass extern ulong _rel_dyn_start_ofs; 7818652864SSimon Glass extern ulong _rel_dyn_end_ofs; 7918652864SSimon Glass 8018652864SSimon Glass /* End of the region to be relocated, as an offset form _start */ 8118652864SSimon Glass extern ulong _image_copy_end_ofs; 8218652864SSimon Glass 8318652864SSimon Glass extern ulong _bss_start_ofs; /* BSS start relative to _start */ 8418652864SSimon Glass extern ulong _bss_end_ofs; /* BSS end relative to _start */ 8518652864SSimon Glass extern ulong _end_ofs; /* end of image relative to _start */ 8618652864SSimon Glass 8718652864SSimon Glass extern ulong _TEXT_BASE; /* code start */ 8818652864SSimon Glass 8918652864SSimon Glass #else /* don't use offsets: */ 9018652864SSimon Glass 9118652864SSimon Glass /* Exports from the Linker Script */ 9218652864SSimon Glass extern ulong __data_end; 9318652864SSimon Glass extern ulong __rel_dyn_start; 9418652864SSimon Glass extern ulong __rel_dyn_end; 9518652864SSimon Glass extern ulong __bss_end; 9618652864SSimon Glass 9718652864SSimon Glass extern ulong _TEXT_BASE; /* code start */ 9818652864SSimon Glass 9918652864SSimon Glass #endif 10018652864SSimon Glass 10118652864SSimon Glass #endif /* _ASM_GENERIC_SECTIONS_H_ */ 102