kernel/tools/testing/selftests/powerpc/switch_endian/check.S

   1 #include "common.h"
   2
   3 /*
   4  * Checks that registers contain what we expect, ie. they were not clobbered by
   5  * the syscall.
   6  *
   7  * r15: pattern to check registers against.
   8  *
   9  * At the end r3 == 0 if everything's OK.
  10  */
  11         nop                     # guaranteed to be illegal in reverse-endian
  12         mr      r9,r15
  13         cmpd    r9,r3           # check r3
  14         bne     1f
  15         addi    r9,r15,4        # check r4
  16         cmpd    r9,r4
  17         bne     1f
  18         lis     r9,0x00FF       # check CR
  19         ori     r9,r9,0xF000
  20         mfcr    r10
  21         and     r10,r10,r9
  22         cmpw    r9,r10
  23         addi    r9,r15,34
  24         bne     1f
  25         addi    r9,r15,32       # check LR
  26         mflr    r10
  27         cmpd    r9,r10
  28         bne     1f
  29         addi    r9,r15,5        # check r5
  30         cmpd    r9,r5
  31         bne     1f
  32         addi    r9,r15,6        # check r6
  33         cmpd    r9,r6
  34         bne     1f
  35         addi    r9,r15,7        # check r7
  36         cmpd    r9,r7
  37         bne     1f
  38         addi    r9,r15,8        # check r8
  39         cmpd    r9,r8
  40         bne     1f
  41         addi    r9,r15,13       # check r13
  42         cmpd    r9,r13
  43         bne     1f
  44         addi    r9,r15,14       # check r14
  45         cmpd    r9,r14
  46         bne     1f
  47         addi    r9,r15,16       # check r16
  48         cmpd    r9,r16
  49         bne     1f
  50         addi    r9,r15,17       # check r17
  51         cmpd    r9,r17
  52         bne     1f
  53         addi    r9,r15,18       # check r18
  54         cmpd    r9,r18
  55         bne     1f
  56         addi    r9,r15,19       # check r19
  57         cmpd    r9,r19
  58         bne     1f
  59         addi    r9,r15,20       # check r20
  60         cmpd    r9,r20
  61         bne     1f
  62         addi    r9,r15,21       # check r21
  63         cmpd    r9,r21
  64         bne     1f
  65         addi    r9,r15,22       # check r22
  66         cmpd    r9,r22
  67         bne     1f
  68         addi    r9,r15,23       # check r23
  69         cmpd    r9,r23
  70         bne     1f
  71         addi    r9,r15,24       # check r24
  72         cmpd    r9,r24
  73         bne     1f
  74         addi    r9,r15,25       # check r25
  75         cmpd    r9,r25
  76         bne     1f
  77         addi    r9,r15,26       # check r26
  78         cmpd    r9,r26
  79         bne     1f
  80         addi    r9,r15,27       # check r27
  81         cmpd    r9,r27
  82         bne     1f
  83         addi    r9,r15,28       # check r28
  84         cmpd    r9,r28
  85         bne     1f
  86         addi    r9,r15,29       # check r29
  87         cmpd    r9,r29
  88         bne     1f
  89         addi    r9,r15,30       # check r30
  90         cmpd    r9,r30
  91         bne     1f
  92         addi    r9,r15,31       # check r31
  93         cmpd    r9,r31
  94         bne     1f
  95         b       2f
  96 1:      mr      r3, r9
  97         li      r0, __NR_exit
  98         sc
  99 2:      li      r0, __NR_switch_endian
 100         nop