src/runtime/core.h

   1 /*
   2  * This software is part of the SBCL system. See the README file for
   3  * more information.
   4  *
   5  * This software is derived from the CMU CL system, which was
   6  * written at Carnegie Mellon University and released into the
   7  * public domain. The software is in the public domain and is
   8  * provided with absolutely no warranty. See the COPYING and CREDITS
   9  * files for more information.
  10  */
  11
  12 #ifndef _CORE_H_
  13 #define _CORE_H_
  14
  15 #include "sbcl.h"
  16 #include "runtime.h"
  17
  18 struct ndir_entry {
  19 #ifndef LISP_FEATURE_ALPHA
  20     sword_t identifier;
  21     sword_t nwords;
  22     sword_t data_page;
  23     sword_t address;
  24     sword_t page_count;
  25 #else
  26     u32 identifier;
  27     u32 nwords;
  28     u32 data_page;
  29     u32 address;
  30     u32 page_count;
  31 #endif
  32 };
  33
  34 /* Tri-state flag to determine whether we attempt to mark pages
  35  * as targets for virtual memory deduplication (ala MADV_MERGEABLE
  36  * on Linux).
  37  *
  38  * 1: Yes
  39  * 0: No
  40  * -1: default, yes for compressed cores, no otherwise.
  41  */
  42 extern int merge_core_pages;
  43
  44 extern lispobj load_core_file(char *file, os_vm_offset_t offset);
  45 extern os_vm_offset_t search_for_embedded_core(char *file);
  46
  47 /* arbitrary string identifying this build, embedded in .core files to
  48  * prevent people mismatching a runtime built e.g. with :SB-SHOW
  49  * against a .core built without :SB-SHOW (or against various grosser
  50  * mismatches, e.g. a .core built with an old version of the code
  51  * against a runtime with patches which add new C code) */
  52 extern unsigned char build_id[];
  53
  54 #endif