toolchain/gcc/libgloss/syscall.h

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