root/arch/alpha/lib/dbg_current.S

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   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * arch/alpha/lib/dbg_current.S
   4  * Contributed by Richard Henderson (rth@cygnus.com)
   5  *
   6  * Trap if we find current not correct.
   7  */
   8 
   9 #include <asm/pal.h>
  10 
  11         .text
  12         .set noat
  13 
  14         .globl _mcount
  15         .ent _mcount
  16 _mcount:
  17         .frame $30, 0, $28, 0
  18         .prologue 0
  19 
  20         lda     $0, -0x4000($30)
  21         cmpult  $8, $30, $1
  22         cmpule  $0, $30, $2
  23         and     $1, $2, $3
  24         bne     $3, 1f
  25 
  26         call_pal PAL_bugchk
  27 
  28 1:      ret     $31, ($28), 1
  29 
  30         .end _mcount
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