X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fsave.c;h=36b8ae82e7760f56f18b417dc426d7eff532e1b5;hb=e663f81f7297ab9f53b38d5f0975152de3557e69;hp=2c527f8f4e32895aac9e1962042a50ac0b9bdefa;hpb=d7f6139a91d7d9b0667a597584ae306d958bb2f4;p=sbcl.git diff --git a/src/runtime/save.c b/src/runtime/save.c index 2c527f8..36b8ae8 100644 --- a/src/runtime/save.c +++ b/src/runtime/save.c @@ -9,23 +9,32 @@ * files for more information. */ +#include #include +#include #include #include +#include "sbcl.h" #include "runtime.h" #include "os.h" -#include "sbcl.h" #include "core.h" #include "globals.h" #include "save.h" #include "dynbind.h" #include "lispregs.h" #include "validate.h" +#include "gc-internal.h" +#include "thread.h" -#ifdef GENCGC -#include "gencgc.h" -#endif +#include "genesis/static-symbols.h" +#include "genesis/symbol.h" + +static void +write_lispobj(lispobj obj, FILE *file) +{ + fwrite(&obj, sizeof(lispobj), 1, file); +} static long write_bytes(FILE *file, char *addr, long bytes) @@ -62,102 +71,143 @@ output_space(FILE *file, int id, lispobj *addr, lispobj *end) int words, bytes, data; static char *names[] = {NULL, "dynamic", "static", "read-only"}; - putw(id, file); + write_lispobj(id, file); words = end - addr; - putw(words, file); + write_lispobj(words, file); bytes = words * sizeof(lispobj); - printf("writing %ld(0x%lx) bytes from the %s(%d) space at 0x%08lx\n", - (long)bytes, (long)bytes, names[id], id, (unsigned long)addr); + printf("writing %d bytes from the %s space at 0x%08lx\n", + bytes, names[id], (unsigned long)addr); data = write_bytes(file, (char *)addr, bytes); - putw(data, file); - putw((long)addr / os_vm_page_size, file); - putw((bytes + os_vm_page_size - 1) / os_vm_page_size, file); + write_lispobj(data, file); + write_lispobj((long)addr / os_vm_page_size, file); + write_lispobj((bytes + os_vm_page_size - 1) / os_vm_page_size, file); } -boolean -save(char *filename, lispobj init_function) +FILE * +open_core_for_saving(char *filename) { - FILE *file; -#if defined WANT_CGC - volatile lispobj*func_ptr = &init_function; - char sbuf[128]; - strcpy(sbuf,filename); - filename=sbuf; - /* Get rid of remnant stuff. This is a MUST so that the memory - * manager can get started correctly when we restart after this - * save. Purify is going to maybe move the args so we need to - * consider them volatile, especially if the gcc optimizer is - * working!! */ - purify(NIL,NIL); - - init_function = *func_ptr; - /* Set dynamic space pointer to base value so we don't write out - * MBs of just cleared heap. */ - if(SymbolValue(X86_CGC_ACTIVE_P) != NIL) { - SetSymbolValue(ALLOCATION_POINTER, DYNAMIC_SPACE_START); - } -#endif - /* Open the file: */ + /* Open the output file. We don't actually need the file yet, but + * the fopen() might fail for some reason, and we want to detect + * that and back out before we do anything irreversible. */ unlink(filename); - file = fopen(filename, "w"); - if (file == NULL) { - perror(filename); - return 1; - } - printf("[undoing binding stack... "); + return fopen(filename, "w"); +} + +boolean +save_to_filehandle(FILE *file, char *filename, lispobj init_function) +{ + struct thread *th; + + /* Smash the enclosing state. (Once we do this, there's no good + * way to go back, which is a sufficient reason that this ends up + * being SAVE-LISP-AND-DIE instead of SAVE-LISP-AND-GO-ON). */ + printf("[undoing binding stack and other enclosing state... "); fflush(stdout); - unbind_to_here((lispobj *)BINDING_STACK_START); - SetSymbolValue(CURRENT_CATCH_BLOCK, 0); - SetSymbolValue(CURRENT_UNWIND_PROTECT_BLOCK, 0); - SetSymbolValue(EVAL_STACK_TOP, 0); + for_each_thread(th) { /* XXX really? */ + unbind_to_here((lispobj *)th->binding_stack_start,th); + SetSymbolValue(CURRENT_CATCH_BLOCK, 0,th); + SetSymbolValue(CURRENT_UNWIND_PROTECT_BLOCK, 0,th); + } printf("done]\n"); -#if defined WANT_CGC && defined X86_CGC_ACTIVE_P - SetSymbolValue(X86_CGC_ACTIVE_P, T); -#endif - printf("[saving current Lisp image into %s:\n", filename); + fflush(stdout); - putw(CORE_MAGIC, file); + /* (Now we can actually start copying ourselves into the output file.) */ - putw(CORE_VERSION, file); - putw(3, file); - putw(SBCL_CORE_VERSION_INTEGER, file); + printf("[saving current Lisp image into %s:\n", filename); + fflush(stdout); - putw(CORE_NDIRECTORY, file); - putw((5*3)+2, file); /* 3 5-word space descriptors, plus code and count */ + write_lispobj(CORE_MAGIC, file); + + write_lispobj(VERSION_CORE_ENTRY_TYPE_CODE, file); + write_lispobj(3, file); + write_lispobj(SBCL_CORE_VERSION_INTEGER, file); + + write_lispobj(BUILD_ID_CORE_ENTRY_TYPE_CODE, file); + write_lispobj(/* (We're writing the word count of the entry here, and the 2 + * term is one word for the leading BUILD_ID_CORE_ENTRY_TYPE_CODE + * word and one word where we store the count itself.) */ + 2 + strlen((const char *)build_id), + file); + { + unsigned char *p; + for (p = build_id; *p; ++p) + write_lispobj(*p, file); + } - output_space(file, READ_ONLY_SPACE_ID, (lispobj *)READ_ONLY_SPACE_START, - (lispobj *)SymbolValue(READ_ONLY_SPACE_FREE_POINTER)); - output_space(file, STATIC_SPACE_ID, (lispobj *)STATIC_SPACE_START, - (lispobj *)SymbolValue(STATIC_SPACE_FREE_POINTER)); + write_lispobj(NEW_DIRECTORY_CORE_ENTRY_TYPE_CODE, file); + write_lispobj(/* (word count = 3 spaces described by 5 words each, plus the + * entry type code, plus this count itself) */ + (5*3)+2, file); + output_space(file, + READ_ONLY_CORE_SPACE_ID, + (lispobj *)READ_ONLY_SPACE_START, + (lispobj *)SymbolValue(READ_ONLY_SPACE_FREE_POINTER,0)); + output_space(file, + STATIC_CORE_SPACE_ID, + (lispobj *)STATIC_SPACE_START, + (lispobj *)SymbolValue(STATIC_SPACE_FREE_POINTER,0)); #ifdef reg_ALLOC - output_space(file, DYNAMIC_SPACE_ID, (lispobj *)current_dynamic_space, - dynamic_space_free_pointer); + output_space(file, + DYNAMIC_CORE_SPACE_ID, + (lispobj *)current_dynamic_space, + dynamic_space_free_pointer); #else -#ifdef GENCGC - /* Flush the current_region updating the tables. */ - gc_alloc_update_page_tables(0,&boxed_region); - gc_alloc_update_page_tables(1,&unboxed_region); - update_x86_dynamic_space_free_pointer(); +#ifdef LISP_FEATURE_GENCGC + /* Flush the current_region, updating the tables. */ + gc_alloc_update_all_page_tables(); + update_dynamic_space_free_pointer(); #endif - output_space(file, DYNAMIC_SPACE_ID, (lispobj *)DYNAMIC_SPACE_START, - (lispobj *)SymbolValue(ALLOCATION_POINTER)); + output_space(file, + DYNAMIC_CORE_SPACE_ID, + (lispobj *)DYNAMIC_SPACE_START, + (lispobj *)SymbolValue(ALLOCATION_POINTER,0)); #endif - FSHOW((stderr, "/writing init_function=0x%lx\n", (long)init_function)); - FSHOW((stderr, "/(SymbolValue(ALLOCATION_POINTER)=0x%lx\n", - (long)SymbolValue(ALLOCATION_POINTER))); - putw(CORE_INITIAL_FUNCTION, file); - putw(3, file); - putw(init_function, file); + write_lispobj(INITIAL_FUN_CORE_ENTRY_TYPE_CODE, file); + write_lispobj(3, file); + write_lispobj(init_function, file); + +#ifdef LISP_FEATURE_GENCGC + { + size_t size = (last_free_page*sizeof(long)+os_vm_page_size-1) + &~(os_vm_page_size-1); + long *data = calloc(size, 1); + if (data) { + long offset; + int i; + for (i = 0; i < last_free_page; i++) { + data[i] = page_table[i].first_object_offset; + } + write_lispobj(PAGE_TABLE_CORE_ENTRY_TYPE_CODE, file); + write_lispobj(4, file); + write_lispobj(size, file); + offset = write_bytes(file, (char *) data, size); + write_lispobj(offset, file); + } + } +#endif - putw(CORE_END, file); - fclose(file); + write_lispobj(END_CORE_ENTRY_TYPE_CODE, file); + fclose(file); printf("done]\n"); exit(0); } + +boolean +save(char *filename, lispobj init_function) +{ + FILE *file = open_core_for_saving(filename); + + if (!file) { + perror(filename); + return 1; + } + + return save_to_filehandle(file, filename, init_function); +}