src/runtime/sparc-sunos-os.c

   1 /*
   2  * This is the SPARC Linux incarnation of arch-dependent OS-dependent
   3  * routines. See also "linux-os.c".
   4  */
   5
   6 /*
   7  * This software is part of the SBCL system. See the README file for
   8  * more information.
   9  *
  10  * This software is derived from the CMU CL system, which was
  11  * written at Carnegie Mellon University and released into the
  12  * public domain. The software is in the public domain and is
  13  * provided with absolutely no warranty. See the COPYING and CREDITS
  14  * files for more information.
  15  */
  16
  17 #include <stdio.h>
  18 #include <sys/param.h>
  19 #include <sys/file.h>
  20 #include "./signal.h"
  21 #include "os.h"
  22 #include "arch.h"
  23 #include "globals.h"
  24 #include "interrupt.h"
  25 #include "interr.h"
  26 #include "lispregs.h"
  27 #include "sbcl.h"
  28 #include <sys/socket.h>
  29 #include <sys/utsname.h>
  30
  31 #include <sys/types.h>
  32 #include <signal.h>
  33 #include <sys/time.h>
  34 #include <sys/stat.h>
  35 #include <unistd.h>
  36
  37 #include "validate.h"
  38
  39
  40 os_context_register_t   *
  41 os_context_register_addr(os_context_t *context, int offset)
  42 {
  43     if (offset == 0) {
  44         static int zero;
  45         zero = 0;
  46         return &zero;
  47     } else if (offset < 16) {
  48         return &context->uc_mcontext.gregs[offset+3];
  49     } else if (offset < 32) {
  50         /* FIXME: You know, this (int *) stuff looks decidedly
  51            dubious */
  52         int *sp = (int*) context->uc_mcontext.gregs[REG_SP];
  53         return &(sp[offset-16]);
  54     } else {
  55         return 0;
  56     }
  57 }
  58
  59 os_context_register_t *
  60 os_context_pc_addr(os_context_t *context)
  61 {
  62     return &(context->uc_mcontext.gregs[REG_PC]);
  63 }
  64
  65 os_context_register_t *
  66 os_context_npc_addr(os_context_t *context)
  67 {
  68     return &(context->uc_mcontext.gregs[REG_nPC]);
  69 }
  70
  71 sigset_t *
  72 os_context_sigmask_addr(os_context_t *context)
  73 {
  74     return &(context->uc_sigmask);
  75 }
  76
  77 unsigned long
  78 os_context_fp_control(os_context_t *context)
  79 {
  80     return (context->uc_mcontext.fpregs.fpu_fsr);
  81 }
  82
  83 void os_flush_icache(os_vm_address_t address, os_vm_size_t length)
  84 {
  85     /* see sparc-assem.S */
  86     sparc_flush_icache(address, length);
  87 }