Eric Lee / smarc-fsl-linux-kernel

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arch/arm64/kernel/reloc_test_syms.S 1.42 KB
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81f7e3824   Eric Lee   Initial Release, ... 
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  /*
   * Copyright (C) 2017 Linaro, Ltd. <ard.biesheuvel@linaro.org>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   */
  
  #include <linux/linkage.h>
  
  ENTRY(absolute_data64)
  	ldr	x0, 0f
  	ret
  0:	.quad	sym64_abs
  ENDPROC(absolute_data64)
  
  ENTRY(absolute_data32)
  	ldr	w0, 0f
  	ret
  0:	.long	sym32_abs
  ENDPROC(absolute_data32)
  
  ENTRY(absolute_data16)
  	adr	x0, 0f
  	ldrh	w0, [x0]
  	ret
  0:	.short	sym16_abs, 0
  ENDPROC(absolute_data16)
  
  ENTRY(signed_movw)
  	movz	x0, #:abs_g2_s:sym64_abs
  	movk	x0, #:abs_g1_nc:sym64_abs
  	movk	x0, #:abs_g0_nc:sym64_abs
  	ret
  ENDPROC(signed_movw)
  
  ENTRY(unsigned_movw)
  	movz	x0, #:abs_g3:sym64_abs
  	movk	x0, #:abs_g2_nc:sym64_abs
  	movk	x0, #:abs_g1_nc:sym64_abs
  	movk	x0, #:abs_g0_nc:sym64_abs
  	ret
  ENDPROC(unsigned_movw)
  
  #ifndef CONFIG_ARM64_ERRATUM_843419
  
  ENTRY(relative_adrp)
  	adrp	x0, sym64_rel
  	add	x0, x0, #:lo12:sym64_rel
  	ret
  ENDPROC(relative_adrp)
  
  #endif
  
  ENTRY(relative_adr)
  	adr	x0, sym64_rel
  	ret
  ENDPROC(relative_adr)
  
  ENTRY(relative_data64)
  	adr	x1, 0f
  	ldr	x0, [x1]
  	add	x0, x0, x1
  	ret
  0:	.quad	sym64_rel - .
  ENDPROC(relative_data64)
  
  ENTRY(relative_data32)
  	adr	x1, 0f
  	ldr	w0, [x1]
  	add	x0, x0, x1
  	ret
  0:	.long	sym64_rel - .
  ENDPROC(relative_data32)
  
  ENTRY(relative_data16)
  	adr	x1, 0f
  	ldrsh	w0, [x1]
  	add	x0, x0, x1
  	ret
  0:	.short	sym64_rel - ., 0
  ENDPROC(relative_data16)