* A saved SBCL system is a .core file; the code here helps us accept
* such a file as input.
*/
-
+
/*
* This software is part of the SBCL system. See the README file for
* more information.
*/
#include <stdio.h>
-#include <sys/types.h>
+#include <stdlib.h>
+#include <string.h>
#include <sys/file.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
#ifdef irix
#include <fcntl.h>
-#include <stdlib.h>
#endif
+#include "sbcl.h"
#include "os.h"
#include "runtime.h"
#include "globals.h"
#include "core.h"
#include "arch.h"
#include "interr.h"
-#include "sbcl.h"
+#include "thread.h"
-static void process_directory(int fd, long *ptr, int count)
+unsigned char build_id[] =
+#include "../../output/build-id.tmp"
+;
+
+static void
+process_directory(int fd, u32 *ptr, int count)
{
struct ndir_entry *entry;
- FSHOW((stderr, "process_directory(..), count=%d\n", count));
-
+ FSHOW((stderr, "/process_directory(..), count=%d\n", count));
+
for (entry = (struct ndir_entry *) ptr; --count>= 0; ++entry) {
- long id = entry->identifier;
- long offset = CORE_PAGESIZE * (1 + entry->data_page);
- os_vm_address_t addr =
- (os_vm_address_t) (CORE_PAGESIZE * entry->address);
- lispobj *free_pointer = (lispobj *) addr + entry->nwords;
- long len = CORE_PAGESIZE * entry->page_count;
-
- if (len != 0) {
- os_vm_address_t real_addr;
- FSHOW((stderr, "mapping %ld bytes at 0x%lx\n", len, addr));
- real_addr = os_map(fd, offset, addr, len);
- if (real_addr != addr) {
- lose("file mapped in wrong place! "
- "(0x%08x != 0x%08lx)",
- real_addr,
- addr);
- }
- }
-
- FSHOW((stderr, "space id = %d, free pointer = 0x%08x\n",
- id, free_pointer));
-
- switch (id) {
- case DYNAMIC_SPACE_ID:
- if (addr != (os_vm_address_t)DYNAMIC_SPACE_START) {
- lose("core/runtime address mismatch: DYNAMIC_SPACE_START");
- }
-#if defined(ibmrt) || defined(__i386__)
- SetSymbolValue(ALLOCATION_POINTER, (lispobj)free_pointer);
+ long id = entry->identifier;
+ long offset = os_vm_page_size * (1 + entry->data_page);
+ os_vm_address_t addr =
+ (os_vm_address_t) (os_vm_page_size * entry->address);
+ lispobj *free_pointer = (lispobj *) addr + entry->nwords;
+ long len = os_vm_page_size * entry->page_count;
+
+ if (len != 0) {
+ os_vm_address_t real_addr;
+ FSHOW((stderr, "/mapping %ld(0x%lx) bytes at 0x%lx\n",
+ (long)len, (long)len, addr));
+ real_addr = os_map(fd, offset, addr, len);
+ if (real_addr != addr) {
+ lose("file mapped in wrong place! "
+ "(0x%08x != 0x%08lx)",
+ real_addr,
+ addr);
+ }
+ }
+
+ FSHOW((stderr, "/space id = %d, free pointer = 0x%08x\n",
+ id, (long)free_pointer));
+
+ switch (id) {
+ case DYNAMIC_CORE_SPACE_ID:
+#ifdef LISP_FEATURE_GENCGC
+ if (addr != (os_vm_address_t)DYNAMIC_SPACE_START) {
+ fprintf(stderr, "in core: 0x%lx; in runtime: 0x%lx \n",
+ (long)addr, (long)DYNAMIC_SPACE_START);
+ lose("core/runtime address mismatch: DYNAMIC_SPACE_START");
+ }
#else
- dynamic_space_free_pointer = free_pointer;
+ if ((addr != (os_vm_address_t)DYNAMIC_0_SPACE_START) &&
+ (addr != (os_vm_address_t)DYNAMIC_1_SPACE_START)) {
+ fprintf(stderr, "in core: 0x%lx; in runtime: 0x%lx or 0x%lx\n",
+ (long)addr,
+ (long)DYNAMIC_0_SPACE_START,
+ (long)DYNAMIC_1_SPACE_START);
+ lose("warning: core/runtime address mismatch: DYNAMIC_SPACE_START");
+ }
#endif
- break;
- case STATIC_SPACE_ID:
- if (addr != (os_vm_address_t)STATIC_SPACE_START) {
- lose("core/runtime address mismatch: STATIC_SPACE_START");
- }
- break;
- case READ_ONLY_SPACE_ID:
- if (addr != (os_vm_address_t)READ_ONLY_SPACE_START) {
- lose("core/runtime address mismatch: READ_ONLY_SPACE_START");
- }
- break;
- default:
- lose("unknown space ID %ld", id);
- }
+#if defined(ALLOCATION_POINTER)
+ SetSymbolValue(ALLOCATION_POINTER, (lispobj)free_pointer,0);
+#else
+ dynamic_space_free_pointer = free_pointer;
+#endif
+ /* For stop-and-copy GC, this will be whatever the GC was
+ * using at the time. With GENCGC, this will always be
+ * space 0. (We checked above that for GENCGC,
+ * addr==DYNAMIC_SPACE_START.) */
+ current_dynamic_space = (lispobj *)addr;
+ break;
+ case STATIC_CORE_SPACE_ID:
+ if (addr != (os_vm_address_t)STATIC_SPACE_START) {
+ fprintf(stderr, "in core: 0x%lx - in runtime: 0x%lx\n",
+ (long)addr, (long)STATIC_SPACE_START);
+ lose("core/runtime address mismatch: STATIC_SPACE_START");
+ }
+ break;
+ case READ_ONLY_CORE_SPACE_ID:
+ if (addr != (os_vm_address_t)READ_ONLY_SPACE_START) {
+ fprintf(stderr, "in core: 0x%lx - in runtime: 0x%lx\n",
+ (long)addr, (long)READ_ONLY_SPACE_START);
+ lose("core/runtime address mismatch: READ_ONLY_SPACE_START");
+ }
+ break;
+ default:
+ lose("unknown space ID %ld addr 0x%p", id);
+ }
}
}
-lispobj load_core_file(char *file)
+lispobj
+load_core_file(char *file)
{
+ lispobj *header, val, len, *ptr, remaining_len;
int fd = open(file, O_RDONLY), count;
- /* KLUDGE: This kind of conditionalization everywhere that 32-bit
- * ints are used is really nasty. It would be much nicer to define
- * a typedef a la addr_as_int once and for all in each
- * architecture file, then use that everywhere. -- WHN 19990904 */
-#ifndef alpha
- long header[CORE_PAGESIZE / sizeof(long)], val, len, *ptr;
- long remaining_len;
-#else
- u32 header[CORE_PAGESIZE / sizeof(u32)], val, len, *ptr;
- u32 remaining_len;
-#endif
-
lispobj initial_function = NIL;
-
+ FSHOW((stderr, "/entering load_core_file(%s)\n", file));
if (fd < 0) {
- fprintf(stderr, "could not open file \"%s\"\n", file);
- perror("open");
- exit(1);
+ fprintf(stderr, "could not open file \"%s\"\n", file);
+ perror("open");
+ exit(1);
}
- count = read(fd, header, CORE_PAGESIZE);
- if (count < CORE_PAGESIZE) {
- lose("premature end of core file");
+ header = calloc(os_vm_page_size / sizeof(u32), sizeof(u32));
+
+ count = read(fd, header, os_vm_page_size);
+ if (count < os_vm_page_size) {
+ lose("premature end of core file");
}
+ SHOW("successfully read first page of core");
ptr = header;
val = *ptr++;
if (val != CORE_MAGIC) {
- lose("invalid magic number in core: 0x%lx should have been 0x%x.",
- val,
- CORE_MAGIC);
+ lose("invalid magic number in core: 0x%lx should have been 0x%x.",
+ val,
+ CORE_MAGIC);
}
-
- while (val != CORE_END) {
- val = *ptr++;
- len = *ptr++;
- remaining_len = len - 2; /* (-2 to cancel the two ++ operations) */
-
- switch (val) {
-
- case CORE_END:
- break;
-
- case CORE_VERSION:
- if (*ptr != SBCL_CORE_VERSION_INTEGER) {
- lose("core file version (%d) != runtime library version (%d)",
- *ptr,
- SBCL_CORE_VERSION_INTEGER);
- }
- break;
-
- case CORE_NDIRECTORY:
- process_directory(fd,
- ptr,
-#ifndef alpha
- remaining_len / (sizeof(struct ndir_entry) /
- sizeof(long))
+ SHOW("found CORE_MAGIC");
+
+ while (val != END_CORE_ENTRY_TYPE_CODE) {
+ val = *ptr++;
+ len = *ptr++;
+ remaining_len = len - 2; /* (-2 to cancel the two ++ operations) */
+ FSHOW((stderr, "/val=0x%ld, remaining_len=0x%ld\n",
+ (long)val, (long)remaining_len));
+
+ switch (val) {
+
+ case END_CORE_ENTRY_TYPE_CODE:
+ SHOW("END_CORE_ENTRY_TYPE_CODE case");
+ break;
+
+ case VERSION_CORE_ENTRY_TYPE_CODE:
+ SHOW("VERSION_CORE_ENTRY_TYPE_CODE case");
+ if (*ptr != SBCL_CORE_VERSION_INTEGER) {
+ lose("core file version (%d) != runtime library version (%d)",
+ *ptr,
+ SBCL_CORE_VERSION_INTEGER);
+ }
+ break;
+
+ case BUILD_ID_CORE_ENTRY_TYPE_CODE:
+ SHOW("BUILD_ID_CORE_ENTRY_TYPE_CODE case");
+ {
+ int i;
+
+ FSHOW((stderr, "build_id[]=\"%s\"\n", build_id));
+ FSHOW((stderr, "remaining_len = %d\n", remaining_len));
+ if (remaining_len != strlen(build_id))
+ goto losing_build_id;
+ for (i = 0; i < remaining_len; ++i) {
+ FSHOW((stderr, "ptr[%d] = char = %d, expected=%d\n",
+ i, ptr[i], build_id[i]));
+ if (ptr[i] != build_id[i])
+ goto losing_build_id;
+ }
+ break;
+ losing_build_id:
+ /* .core files are not binary-compatible between
+ * builds because we can't easily detect whether the
+ * sources were patched between the time the
+ * dumping-the-.core runtime was built and the time
+ * that the loading-the-.core runtime was built.
+ *
+ * (We could easily detect whether version.lisp-expr
+ * was changed, but people experimenting with patches
+ * don't necessarily update version.lisp-expr.) */
+
+ lose("can't load .core for different runtime, sorry");
+ }
+
+ case NEW_DIRECTORY_CORE_ENTRY_TYPE_CODE:
+ SHOW("NEW_DIRECTORY_CORE_ENTRY_TYPE_CODE case");
+ process_directory(fd,
+ ptr,
+#ifndef LISP_FEATURE_ALPHA
+ remaining_len / (sizeof(struct ndir_entry) /
+ sizeof(long))
#else
- remaining_len / (sizeof(struct ndir_entry) /
- sizeof(u32))
+ remaining_len / (sizeof(struct ndir_entry) /
+ sizeof(u32))
#endif
- );
- break;
+ );
+ break;
- case CORE_INITIAL_FUNCTION:
- initial_function = (lispobj)*ptr;
- break;
+ case INITIAL_FUN_CORE_ENTRY_TYPE_CODE:
+ SHOW("INITIAL_FUN_CORE_ENTRY_TYPE_CODE case");
+ initial_function = (lispobj)*ptr;
+ break;
- default:
- lose("unknown core file entry: %ld", val);
- }
+ default:
+ lose("unknown core file entry: %ld", (long)val);
+ }
- ptr += remaining_len;
+ ptr += remaining_len;
+ FSHOW((stderr, "/new ptr=%x\n", ptr));
}
-
+ SHOW("about to free(header)");
+ free(header);
+ SHOW("returning from load_core_file(..)");
return initial_function;
}
projects / sbcl.git / blobdiff