toolchain/gcc/libgloss/xstormy16/syscalls.m4

   1 # xstormy16 system calls for the simulator
   2
   3 #include <syscall.h>
   4
   5         .text
   6
   7 define(`syscall',`.globl _`'$1
   8 _`'$1`':
   9         mov r1,#SYS_$1
  10         .hword 0x0001
  11         bnz r1,#0,syscall_error
  12         ret
  13 0:      .size $1,0b-_$1
  14 ')dnl
  15         syscall(exit)
  16         syscall(open)
  17         syscall(close)
  18         syscall(read)
  19         syscall(write)
  20         syscall(lseek)
  21         syscall(unlink)
  22         syscall(getpid)
  23         syscall(kill)
  24         syscall(fstat)
  25         syscall(chdir)
  26         syscall(stat)
  27         syscall(chmod)
  28         syscall(utime)
  29         syscall(time)
  30         syscall(gettimeofday)
  31         syscall(times)
  32         syscall(link)
  33 dnl
  34 syscall_error:
  35         push r0
  36         callf __errno
  37         pop r0
  38         mov.w (r2),r0
  39         ret
  40 0:      .size syscall_error,0b-syscall_error