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https://github.com/AsahiLinux/u-boot
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09d81184e1
Discard all .dynsym sections from linker scripts Remove all __dynsym_start definitions from linker scripts Remove all __dynsym_start references from the codebase Note: this touches include/asm-generic/sections.h, which is not ARM-specific, but actual uses of __dynsym_start are only in ARM, so this patch can safely go through the ARM repository. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Tested-by: Lubomir Popov <lpopov@mm-sol.com> Tested-by: Jeroen Hofstee <jeroen@myspectrum.nl> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
114 lines
3.3 KiB
C
114 lines
3.3 KiB
C
/*
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* Copyright (c) 2011 The Chromium OS Authors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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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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