mirror of
https://github.com/AsahiLinux/u-boot
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1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
/*
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* Copyright (c) 2011 The Chromium OS Authors.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/* Taken from Linux kernel, commit f56c3196 */
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#ifndef _ASM_GENERIC_SECTIONS_H_
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#define _ASM_GENERIC_SECTIONS_H_
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/* References to section boundaries */
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extern char _text[], _stext[], _etext[];
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extern char _data[], _sdata[], _edata[];
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extern char __bss_start[], __bss_stop[];
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extern char __init_begin[], __init_end[];
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extern char _sinittext[], _einittext[];
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extern char _end[], _init[];
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extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
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extern char __kprobes_text_start[], __kprobes_text_end[];
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extern char __entry_text_start[], __entry_text_end[];
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extern char __initdata_begin[], __initdata_end[];
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extern char __start_rodata[], __end_rodata[];
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/* Start and end of .ctors section - used for constructor calls. */
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extern char __ctors_start[], __ctors_end[];
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/* function descriptor handling (if any). Override
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* in asm/sections.h */
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#ifndef dereference_function_descriptor
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#define dereference_function_descriptor(p) (p)
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#endif
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/* random extra sections (if any). Override
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* in asm/sections.h */
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#ifndef arch_is_kernel_text
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static inline int arch_is_kernel_text(unsigned long addr)
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{
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return 0;
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}
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#endif
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#ifndef arch_is_kernel_data
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static inline int arch_is_kernel_data(unsigned long addr)
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{
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return 0;
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}
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#endif
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/* U-Boot-specific things begin here */
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/* Start of U-Boot text region */
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extern char __text_start[];
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/* This marks the end of the text region which must be relocated */
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extern char __image_copy_end[];
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/*
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* This is the U-Boot entry point - prior to relocation it should be same
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* as __text_start
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*/
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extern void _start(void);
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/*
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* ARM needs to use offsets for symbols, since the values of some symbols
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* are not resolved prior to relocation (and are just 0). Maybe this can be
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* resolved, or maybe other architectures are similar, iwc this should be
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* promoted to an architecture option.
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*/
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#ifdef CONFIG_ARM
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#define CONFIG_SYS_SYM_OFFSETS
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#endif
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#ifdef CONFIG_SYS_SYM_OFFSETS
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/* Start/end of the relocation entries, as an offset from _start */
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extern ulong _rel_dyn_start_ofs;
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extern ulong _rel_dyn_end_ofs;
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/* End of the region to be relocated, as an offset form _start */
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extern ulong _image_copy_end_ofs;
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extern ulong _bss_start_ofs; /* BSS start relative to _start */
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extern ulong _bss_end_ofs; /* BSS end relative to _start */
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extern ulong _end_ofs; /* end of image relative to _start */
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extern ulong _TEXT_BASE; /* code start */
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#else /* don't use offsets: */
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/* Exports from the Linker Script */
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extern ulong __data_end;
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extern ulong __rel_dyn_start;
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extern ulong __rel_dyn_end;
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extern ulong __bss_end;
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extern ulong _TEXT_BASE; /* code start */
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#endif
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#endif /* _ASM_GENERIC_SECTIONS_H_ */
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