LXR linux/arch/arm64/kernel/reloc_test

   1/*
   2 * Copyright (C) 2017 Linaro, Ltd. <ard.biesheuvel@linaro.org>
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License version 2 as
   6 * published by the Free Software Foundation.
   7 *
   8 */
   9
  10#include <linux/linkage.h>
  11
  12ENTRY(absolute_data64)
  13        ldr     x0, 0f
  14        ret
  150:      .quad   sym64_abs
  16ENDPROC(absolute_data64)
  17
  18ENTRY(absolute_data32)
  19        ldr     w0, 0f
  20        ret
  210:      .long   sym32_abs
  22ENDPROC(absolute_data32)
  23
  24ENTRY(absolute_data16)
  25        adr     x0, 0f
  26        ldrh    w0, [x0]
  27        ret
  280:      .short  sym16_abs, 0
  29ENDPROC(absolute_data16)
  30
  31ENTRY(signed_movw)
  32        movz    x0, #:abs_g2_s:sym64_abs
  33        movk    x0, #:abs_g1_nc:sym64_abs
  34        movk    x0, #:abs_g0_nc:sym64_abs
  35        ret
  36ENDPROC(signed_movw)
  37
  38ENTRY(unsigned_movw)
  39        movz    x0, #:abs_g3:sym64_abs
  40        movk    x0, #:abs_g2_nc:sym64_abs
  41        movk    x0, #:abs_g1_nc:sym64_abs
  42        movk    x0, #:abs_g0_nc:sym64_abs
  43        ret
  44ENDPROC(unsigned_movw)
  45
  46        .align  12
  47        .space  0xff8
  48ENTRY(relative_adrp)
  49        adrp    x0, sym64_rel
  50        add     x0, x0, #:lo12:sym64_rel
  51        ret
  52ENDPROC(relative_adrp)
  53
  54        .align  12
  55        .space  0xffc
  56ENTRY(relative_adrp_far)
  57        adrp    x0, memstart_addr
  58        add     x0, x0, #:lo12:memstart_addr
  59        ret
  60ENDPROC(relative_adrp_far)
  61
  62ENTRY(relative_adr)
  63        adr     x0, sym64_rel
  64        ret
  65ENDPROC(relative_adr)
  66
  67ENTRY(relative_data64)
  68        adr     x1, 0f
  69        ldr     x0, [x1]
  70        add     x0, x0, x1
  71        ret
  720:      .quad   sym64_rel - .
  73ENDPROC(relative_data64)
  74
  75ENTRY(relative_data32)
  76        adr     x1, 0f
  77        ldr     w0, [x1]
  78        add     x0, x0, x1
  79        ret
  800:      .long   sym64_rel - .
  81ENDPROC(relative_data32)
  82
  83ENTRY(relative_data16)
  84        adr     x1, 0f
  85        ldrsh   w0, [x1]
  86        add     x0, x0, x1
  87        ret
  880:      .short  sym64_rel - ., 0
  89ENDPROC(relative_data16)
  90