toolchain/gcc/libgloss/i960/syscall.h

   1 /* mon960 syscall.h file.  This is used only by the simulator.  This matches
   2    the syscall numbers used by mon-syscalls.S, but is otherwise a copy of
   3    the libgloss/syscall.h file.  */
   4 /* ??? This file should be used by mon-syscalls.S to avoid maintenance
   5    problems.  */
   6
   7 #ifndef LIBGLOSS_SYSCALL_H
   8 #define LIBGLOSS_SYSCALL_H
   9
  10 /* Note: This file may be included by assembler source.  */
  11
  12 /* These should be as small as possible to allow a port to use a trap type
  13    instruction, which the system call # as the trap (the d10v for instance
  14    supports traps 0..31).  An alternative would be to define one trap for doing
  15    system calls, and put the system call number in a register that is not used
  16    for the normal calling sequence (so that you don't have to shift down the
  17    arguments to add the system call number).  Obviously, if these system call
  18    numbers are ever changed, all of the simulators and potentially user code
  19    will need to be updated.  */
  20
  21 /* There is no current need for the following: SYS_execv, SYS_creat, SYS_wait,
  22    etc. etc.  Don't add them.  */
  23
  24 /* These are required by the ANSI C part of newlib (excluding system() of
  25    course).  */
  26 #define SYS_exit        257
  27 #define SYS_open        230
  28 #define SYS_close       234
  29 #define SYS_read        231
  30 #define SYS_write       232
  31 #define SYS_lseek       233
  32
  33 /* ??? The following system calls apparently aren't support by mon960.  */
  34 #define SYS_unlink      7
  35 #define SYS_getpid      8
  36 #define SYS_kill        9
  37 #define SYS_fstat       10
  38 /*#define SYS_sbrk      11 - not currently a system call, but reserved.  */
  39
  40 /* ARGV support.  */
  41 #define SYS_argvlen     12
  42 #define SYS_argv        13
  43
  44 /* These are extras added for one reason or another.  */
  45 #define SYS_chdir       14
  46 #define SYS_stat        15
  47 #define SYS_chmod       16
  48 #define SYS_utime       17
  49 #define SYS_time        18
  50
  51 #endif