klibc/klibc/arch/alpha/syscall.S

   1 #
   2 # arch/alpha/syscall.S
   3 #
   4
   5 #include <machine/asm.h>
   6
   7         .text
   8         .align  3
   9         .type   __syscall_common,@function
  10         .ent    __syscall_common, 0
  11         .globl  __syscall_common
  12 __syscall_common:
  13         .frame  sp,0,ra,0
  14         callsys
  15         beq     a3, 1f
  16         br      pv, 2f                  # pv <- pc
  17 2:
  18         ldgp    gp, 0(pv)
  19         lda     a1, errno
  20         lda     v0, -1(zero)
  21         stl     a3, 0(a1)
  22 1:
  23         ret     zero,(ra),1
  24
  25         .size   __syscall_common,.-__syscall_common
  26         .end    __syscall_common