arch/alpha/lib/dbg_current.S

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