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kernel/linux-rt-4.4.41/arch/mips/vdso/vdso.lds.S 2.65 KB
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  /*
   * Copyright (C) 2015 Imagination Technologies
   * Author: Alex Smith <alex.smith@imgtec.com>
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License as published by the
   * Free Software Foundation;  either version 2 of the  License, or (at your
   * option) any later version.
   */
  
  #include <asm/sgidefs.h>
  
  #if _MIPS_SIM == _MIPS_SIM_ABI64
  OUTPUT_FORMAT("elf64-tradlittlemips", "elf64-tradbigmips", "elf64-tradlittlemips")
  #elif _MIPS_SIM == _MIPS_SIM_NABI32
  OUTPUT_FORMAT("elf32-ntradlittlemips", "elf32-ntradbigmips", "elf32-ntradlittlemips")
  #else
  OUTPUT_FORMAT("elf32-tradlittlemips", "elf32-tradbigmips", "elf32-tradlittlemips")
  #endif
  
  OUTPUT_ARCH(mips)
  
  SECTIONS
  {
  	PROVIDE(_start = .);
  	. = SIZEOF_HEADERS;
  
  	/*
  	 * In order to retain compatibility with older toolchains we provide the
  	 * ABI flags section ourself. Newer assemblers will automatically
  	 * generate .MIPS.abiflags sections so we discard such input sections,
  	 * and then manually define our own section here. genvdso will patch
  	 * this section to have the correct name/type.
  	 */
  	.mips_abiflags	: { *(.mips_abiflags) } 	:text :abiflags
  
  	.reginfo	: { *(.reginfo) }		:text :reginfo
  
  	.hash		: { *(.hash) }			:text
  	.gnu.hash	: { *(.gnu.hash) }
  	.dynsym		: { *(.dynsym) }
  	.dynstr		: { *(.dynstr) }
  	.gnu.version	: { *(.gnu.version) }
  	.gnu.version_d	: { *(.gnu.version_d) }
  	.gnu.version_r	: { *(.gnu.version_r) }
  
  	.note		: { *(.note.*) }		:text :note
  
  	.text		: { *(.text*) }			:text
  	PROVIDE (__etext = .);
  	PROVIDE (_etext = .);
  	PROVIDE (etext = .);
  
  	.eh_frame_hdr	: { *(.eh_frame_hdr) }		:text :eh_frame_hdr
  	.eh_frame	: { KEEP (*(.eh_frame)) }	:text
  
  	.dynamic	: { *(.dynamic) }		:text :dynamic
  
  	.rodata		: { *(.rodata*) }		:text
  
  	_end = .;
  	PROVIDE(end = .);
  
  	/DISCARD/	: {
  		*(.MIPS.abiflags)
  		*(.gnu.attributes)
  		*(.note.GNU-stack)
  		*(.data .data.* .gnu.linkonce.d.* .sdata*)
  		*(.bss .sbss .dynbss .dynsbss)
  	}
  }
  
  PHDRS
  {
  	/*
  	 * Provide a PT_MIPS_ABIFLAGS header to assign the ABI flags section
  	 * to. We can specify the header type directly here so no modification
  	 * is needed later on.
  	 */
  	abiflags	0x70000003;
  
  	/*
  	 * The ABI flags header must exist directly after the PT_INTERP header,
  	 * so we must explicitly place the PT_MIPS_REGINFO header after it to
  	 * stop the linker putting one in at the start.
  	 */
  	reginfo		0x70000000;
  
  	text		PT_LOAD		FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
  	dynamic		PT_DYNAMIC	FLAGS(4);		/* PF_R */
  	note		PT_NOTE		FLAGS(4);		/* PF_R */
  	eh_frame_hdr	PT_GNU_EH_FRAME;
  }
  
  VERSION
  {
  	LINUX_2.6 {
  #ifndef DISABLE_MIPS_VDSO
  	global:
  		__vdso_clock_gettime;
  		__vdso_gettimeofday;
  #endif
  	local: *;
  	};
  }