src/lisp/os.h

   1 /*
   2  * $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/lisp/os.h,v 1.28 2011/09/01 05:18:26 rtoy Exp $
   3  *
   4  * Common interface for os-dependent functions.
   5  *
   6  */
   7
   8 #ifndef _OS_H_
   9 #define _OS_H_
  10
  11 #include "lisp.h"
  12
  13 #define DPRINTF(t,a) { if (t) fprintf a; }
  14
  15 #ifdef DARWIN
  16 #include "Darwin-os.h"
  17 #else
  18 #ifdef MACH
  19 #include "mach-os.h"
  20 #else
  21 #ifdef sun
  22 #include "sunos-os.h"
  23 #else
  24 #ifdef hpux
  25 #include "hpux-os.h"
  26 #else
  27 #ifdef osf1
  28 #include "osf1-os.h"
  29 #else
  30 #ifdef irix
  31 #include "irix-os.h"
  32 #else
  33 #ifdef __FreeBSD__
  34 #include "FreeBSD-os.h"
  35 #else
  36 #ifdef __OpenBSD__
  37 #include "OpenBSD-os.h"
  38 #else
  39 #ifdef __NetBSD__
  40 #include "NetBSD-os.h"
  41 #else
  42 #ifdef __linux__
  43 #include "Linux-os.h"
  44 #endif
  45 #endif
  46 #endif
  47 #endif
  48 #endif
  49 #endif
  50 #endif
  51 #endif
  52 #endif
  53 #endif
  54
  55 #ifndef os_context_t
  56 #define os_context_t struct sigcontext
  57 #endif
  58 #ifndef HANDLER_ARGS
  59 #define HANDLER_ARGS int signal, int code, os_context_t *context
  60 #endif
  61 #ifndef CODE
  62 #define CODE(code)  code
  63 #endif
  64 #ifndef SAVE_CONTEXT
  65 #define SAVE_CONTEXT() do {} while(0)
  66 #endif
  67 #ifndef RESTORE_FPU
  68 #define RESTORE_FPU(context) do {} while (0)
  69 #endif
  70
  71 #define OS_VM_PROT_ALL (OS_VM_PROT_READ|OS_VM_PROT_WRITE|OS_VM_PROT_EXECUTE)
  72
  73 extern os_vm_size_t os_vm_page_size;
  74
  75 extern void os_init0(const char *argv[], const char *envp[]);
  76 extern void os_init(const char *argv[], const char *envp[]);
  77 extern void os_install_interrupt_handlers(void);
  78
  79 extern os_vm_address_t os_allocate(os_vm_size_t len);
  80 extern os_vm_address_t os_allocate_at(os_vm_address_t addr, os_vm_size_t len);
  81 extern os_vm_address_t os_reallocate(os_vm_address_t addr,
  82                                      os_vm_size_t old_len, os_vm_size_t len);
  83 extern void os_deallocate(os_vm_address_t addr, os_vm_size_t len);
  84 extern void os_zero(os_vm_address_t addr, os_vm_size_t length);
  85
  86 extern os_vm_address_t os_validate(os_vm_address_t addr, os_vm_size_t len);
  87 extern void os_invalidate(os_vm_address_t addr, os_vm_size_t len);
  88 extern os_vm_address_t os_map(int fd, int offset, os_vm_address_t addr,
  89                               os_vm_size_t len);
  90 extern void os_flush_icache(os_vm_address_t addr, os_vm_size_t len);
  91 extern void os_protect(os_vm_address_t addr, os_vm_size_t len,
  92
  93                        os_vm_prot_t protection);
  94 extern boolean valid_addr(os_vm_address_t test);
  95
  96 #define os_trunc_to_page(addr) \
  97     (os_vm_address_t)(((long)(addr))&~(os_vm_page_size-1))
  98 #define os_round_up_to_page(addr) \
  99     os_trunc_to_page((addr)+(os_vm_page_size-1))
 100
 101 #define os_trunc_size_to_page(size) \
 102     (os_vm_size_t)(((long)(size))&~(os_vm_page_size-1))
 103 #define os_round_up_size_to_page(size) \
 104     os_trunc_size_to_page((size)+(os_vm_page_size-1))
 105
 106 extern void os_foreign_linkage_init(void);
 107 extern void *os_dlsym(const char *sym_name, lispobj lib_list);
 108
 109 enum stack_zone_t { BOTH_ZONES, YELLOW_ZONE, RED_ZONE };
 110 extern int os_stack_grows_down(void);
 111 extern void os_guard_control_stack(int zone, int guard);
 112 extern int os_control_stack_overflow(void *, os_context_t *);
 113
 114 unsigned long *os_sigcontext_reg(ucontext_t *, int);
 115 unsigned long *os_sigcontext_pc(ucontext_t *);
 116 unsigned char *os_sigcontext_fpu_reg(ucontext_t *, int);
 117 unsigned int os_sigcontext_fpu_modes(ucontext_t *);
 118
 119 #ifdef i386
 120 extern boolean os_support_sse2(void);
 121 #endif
 122
 123 char* convert_lisp_string(char* c_string, void* lisp_string, int len);
 124
 125 #endif /* _OS_H_ */