ld/testsuite/ld-arm/cortex-a8-fix-blx-bcond.s

   1         .syntax unified
   2         .cpu cortex-a8
   3         .thumb
   4         .text
   5
   6         @ expansion 32 bytes
   7         .macro bw1
   8 1:
   9         add.w r0, r1, r2
  10         blx.w arm_target
  11         add.w r0, r1, r2
  12         blx.w arm_target
  13         add.w r0, r1, r2
  14         blx.w arm_target
  15         add.w r0, r1, r2
  16         blx.w arm_target
  17         .endm
  18
  19         @ expansion 128 bytes
  20         .macro bw2
  21         bw1
  22         bw1
  23         bw1
  24         bw1
  25         .endm
  26
  27         @ expansion 32 bytes
  28         .macro bw3
  29 1:
  30         add.w r0, r1, r2
  31         bne.w 1b
  32         add.w r0, r1, r2
  33         bne.w 1b
  34         add.w r0, r1, r2
  35         bne.w 1b
  36         add.w r0, r1, r2
  37         bne.w 1b
  38         .endm
  39
  40         @ expansion 128 bytes
  41         .macro bw4
  42         bw3
  43         bw3
  44         bw3
  45         bw3
  46         .endm
  47
  48         .align  3
  49         .global _start
  50
  51         .thumb
  52         .thumb_func
  53         .type   _start, %function
  54 _start:
  55         nop
  56
  57         @ Trigger Cortex-A8 erratum workaround with b<cond> instructions.
  58         bw4
  59         bw4
  60
  61         nop
  62
  63         .rept 957
  64         nop.w
  65         .endr
  66
  67         .arm
  68 arm_target:
  69         add r3, r4, r5
  70         bx lr
  71
  72         .thumb
  73 bl_insns:
  74
  75         nop
  76
  77         @ ...and again with bl instructions.
  78         bw2
  79         bw2
  80
  81         bx      lr