src/runtime/alpha-osf1-os.c

   1 /*
   2  * This is the Compaq/Digital Alpha Linux incarnation of
   3  * arch-dependent OS-dependent routines. See also "linux-os.c".  */
   4
   5 /*
   6  * This software is part of the SBCL system. See the README file for
   7  * more information.
   8  *
   9  * This software is derived from the CMU CL system, which was
  10  * written at Carnegie Mellon University and released into the
  11  * public domain. The software is in the public domain and is
  12  * provided with absolutely no warranty. See the COPYING and CREDITS
  13  * files for more information.
  14  */
  15
  16 /* Some of these header files may be redundant. -- Dan Barlow
  17  * ca. 2001-05-01 */
  18
  19 #include <stdio.h>
  20 #include <sys/param.h>
  21 #include <sys/file.h>
  22 #include "sbcl.h"
  23 #include "./signal.h"
  24 #include "os.h"
  25 #include "arch.h"
  26 #include "globals.h"
  27 #include "interrupt.h"
  28 #include "interr.h"
  29 #include "lispregs.h"
  30 #include <sys/socket.h>
  31 #include <sys/utsname.h>
  32
  33 #include <sys/types.h>
  34 #include <signal.h>
  35 #include <sys/time.h>
  36 #include <sys/stat.h>
  37 #include <unistd.h>
  38 #include <c_asm.h>
  39 #include <ucontext.h>
  40
  41 #include "validate.h"
  42 size_t os_vm_page_size;
  43
  44 #ifdef LISP_FEATURE_SB_THREAD
  45 #error "Define threading support functions"
  46 #else
  47 int arch_os_thread_init(struct thread *thread) {
  48     return 1;                   /* success */
  49 }
  50 int arch_os_thread_cleanup(struct thread *thread) {
  51     return 1;                   /* success */
  52 }
  53 #endif
  54
  55 os_context_register_t   *
  56 os_context_register_addr(os_context_t *context, int offset)
  57 {
  58     return &context->uc_mcontext.sc_regs[offset];
  59 }
  60
  61 os_context_register_t *
  62 os_context_float_register_addr(os_context_t *context, int offset)
  63 {
  64     return &context->uc_mcontext.sc_fpregs[offset];
  65 }
  66
  67 os_context_register_t *
  68 os_context_pc_addr(os_context_t *context)
  69 {
  70     return &((context->uc_mcontext).sc_pc);
  71 }
  72
  73 sigset_t *
  74 os_context_sigmask_addr(os_context_t *context)
  75 {
  76     return &context->uc_sigmask;
  77 }
  78
  79 unsigned long
  80 os_context_fp_control(os_context_t *context)
  81 {
  82     return 0; /* FIXME */
  83     /* ieee_fpcr_to_swcr((context->uc_mcontext).sc_fpcr); */
  84 }
  85
  86
  87 void os_flush_icache(os_vm_address_t address, os_vm_size_t length)
  88 {
  89 #ifdef __GNUC__
  90     asm volatile ("imb" : : : "memory" );
  91 #else
  92     /* digital CC has different syntax */
  93     asm("imb");
  94 #endif
  95 }