X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fcoreparse.c;h=e8a513bbe0caecf04e53de3a83f1e0a0dc2406db;hb=b5b36522d5398715e53a3c6ca75cf16001ce46ac;hp=07d1525d43a1cd4e487996d78888e06b6d867cbe;hpb=7fb597b585fc715537ea644f7d84440eca217ca1;p=sbcl.git diff --git a/src/runtime/coreparse.c b/src/runtime/coreparse.c index 07d1525..e8a513b 100644 --- a/src/runtime/coreparse.c +++ b/src/runtime/coreparse.c @@ -23,10 +23,6 @@ #include #include -#ifdef irix -#include -#endif - #include "sbcl.h" #include "os.h" #include "runtime.h" @@ -39,12 +35,153 @@ #include "validate.h" #include "gc-internal.h" +/* lutex stuff */ +#if defined(LISP_FEATURE_SB_THREAD) && defined(LISP_FEATURE_SB_LUTEX) +#include "genesis/sap.h" +#include "pthread-lutex.h" +#endif + + unsigned char build_id[] = #include "../../output/build-id.tmp" ; +int +open_binary(char *filename, int mode) +{ +#ifdef LISP_FEATURE_WIN32 + mode |= O_BINARY; +#endif + + return open(filename, mode); +} + + +static struct runtime_options * +read_runtime_options(int fd) +{ + size_t optarray[RUNTIME_OPTIONS_WORDS]; + struct runtime_options *options = NULL; + + if (read(fd, optarray, RUNTIME_OPTIONS_WORDS * sizeof(size_t)) != + RUNTIME_OPTIONS_WORDS * sizeof(size_t)) { + return NULL; + } + + if ((RUNTIME_OPTIONS_MAGIC != optarray[0]) || (0 == optarray[1])) { + return NULL; + } + + options = successful_malloc(sizeof(struct runtime_options)); + + options->dynamic_space_size = optarray[2]; + options->thread_control_stack_size = optarray[3]; + + return options; +} + +void +maybe_initialize_runtime_options(int fd) +{ + off_t end_offset = sizeof(lispobj) + + sizeof(os_vm_offset_t) + + (RUNTIME_OPTIONS_WORDS * sizeof(size_t)); + + lseek(fd, -end_offset, SEEK_END); + runtime_options = read_runtime_options(fd); +} + +/* Search 'filename' for an embedded core. An SBCL core has, at the + * end of the file, a trailer containing optional saved runtime + * options, the start of the core (an os_vm_offset_t), and a final + * signature word (the lispobj CORE_MAGIC). If this trailer is found + * at the end of the file, the start of the core can be determined + * from the core size. + * + * If an embedded core is present, this returns the offset into the + * file to load the core from, or -1 if no core is present. */ +os_vm_offset_t +search_for_embedded_core(char *filename) +{ + lispobj header; + os_vm_offset_t lispobj_size = sizeof(lispobj); + os_vm_offset_t trailer_size = lispobj_size + sizeof(os_vm_offset_t); + os_vm_offset_t core_start, pos; + int fd = -1; + + if ((fd = open_binary(filename, O_RDONLY)) < 0) + goto lose; + if (lseek(fd, -lispobj_size, SEEK_END) < 0) + goto lose; + if (read(fd, &header, (size_t)lispobj_size) < lispobj_size) + goto lose; + + if (header == CORE_MAGIC) { + if (lseek(fd, -trailer_size, SEEK_END) < 0) + goto lose; + if (read(fd, &core_start, sizeof(os_vm_offset_t)) < 0) + goto lose; + + if (lseek(fd, core_start, SEEK_SET) < 0) + goto lose; + pos = lseek(fd, 0, SEEK_CUR); + + if (read(fd, &header, (size_t)lispobj_size) < lispobj_size) + goto lose; + + if (header != CORE_MAGIC) + goto lose; + + maybe_initialize_runtime_options(fd); + + close(fd); + return pos; + } + +lose: + if (fd != -1) + close(fd); + + return -1; +} + +/* If more platforms doesn't support overlapping mmap rename this + * def to something like ifdef nommapoverlap */ +/* currently hpux only */ +#ifdef LISP_FEATURE_HPUX +os_vm_address_t copy_core_bytes(int fd, os_vm_offset_t offset, + os_vm_address_t addr, int len) +{ + unsigned char buf[4096]; + int c,x; + int old_fd = lseek(fd, 0, SEEK_CUR); + + if(len & (4096-1)){ + fprintf(stderr, "cant copy a slice of core because slice-length is not of page size(4096)\n"); + exit(-1); + } + if(old_fd < 0){ + fprintf(stderr, "cant perform lseek() on corefile\n"); + } + lseek(fd, offset, SEEK_SET); + if(fd < 0){ + fprintf(stderr, "cant perform lseek(%u,%lu,SEEK_SET) on corefile\n", fd, offset); + } + for(x = 0; x < len; x += 4096){ + c = read(fd, buf, 4096); + if(c != 4096){ + fprintf(stderr, "cant read memory area from corefile at position %lu, got %d\n", offset + x, c); + exit(-1); + } + memcpy(addr+x, buf, 4096); + } + os_flush_icache(addr, len); + return addr; +} +#endif + static void -process_directory(int fd, u32 *ptr, int count) +process_directory(int fd, lispobj *ptr, int count, os_vm_offset_t file_offset) { struct ndir_entry *entry; @@ -57,13 +194,16 @@ process_directory(int fd, u32 *ptr, int count) 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; - + unsigned 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, (unsigned long)addr)); - real_addr = os_map(fd, offset, addr, len); +#ifdef LISP_FEATURE_HPUX + real_addr = copy_core_bytes(fd, offset + file_offset, addr, len); +#else + real_addr = os_map(fd, offset + file_offset, addr, len); +#endif if (real_addr != addr) { lose("file mapped in wrong place! " "(0x%08x != 0x%08lx)\n", @@ -77,6 +217,13 @@ process_directory(int fd, u32 *ptr, int count) switch (id) { case DYNAMIC_CORE_SPACE_ID: + if (len > dynamic_space_size) { + fprintf(stderr, + "dynamic space too small for core: %ldKiB required, %ldKiB available.\n", + len >> 10, + (long)dynamic_space_size >> 10); + exit(1); + } #ifdef LISP_FEATURE_GENCGC if (addr != (os_vm_address_t)DYNAMIC_SPACE_START) { fprintf(stderr, "in core: 0x%lx; in runtime: 0x%lx \n", @@ -125,14 +272,11 @@ process_directory(int fd, u32 *ptr, int count) } lispobj -load_core_file(char *file) +load_core_file(char *file, os_vm_offset_t file_offset) { lispobj *header, val, len, *ptr, remaining_len; -#ifndef LISP_FEATURE_WIN32 - int fd = open(file, O_RDONLY), count; -#else - int fd = open(file, O_RDONLY | O_BINARY), count; -#endif + int fd = open_binary(file, O_RDONLY); + unsigned int count; lispobj initial_function = NIL; FSHOW((stderr, "/entering load_core_file(%s)\n", file)); @@ -142,6 +286,7 @@ load_core_file(char *file) exit(1); } + lseek(fd, file_offset, SEEK_SET); header = calloc(os_vm_page_size / sizeof(u32), sizeof(u32)); count = read(fd, header, os_vm_page_size); @@ -185,7 +330,7 @@ load_core_file(char *file) case BUILD_ID_CORE_ENTRY_TYPE_CODE: SHOW("BUILD_ID_CORE_ENTRY_TYPE_CODE case"); { - int i; + unsigned int i; FSHOW((stderr, "build_id[]=\"%s\"\n", build_id)); FSHOW((stderr, "remaining_len = %d\n", remaining_len)); @@ -218,12 +363,12 @@ load_core_file(char *file) ptr, #ifndef LISP_FEATURE_ALPHA remaining_len / (sizeof(struct ndir_entry) / - sizeof(long)) + sizeof(long)), #else remaining_len / (sizeof(struct ndir_entry) / - sizeof(u32)) + sizeof(u32)), #endif - ); + file_offset); break; case INITIAL_FUN_CORE_ENTRY_TYPE_CODE: @@ -231,6 +376,41 @@ load_core_file(char *file) initial_function = (lispobj)*ptr; break; +#if defined(LISP_FEATURE_SB_THREAD) && defined(LISP_FEATURE_SB_LUTEX) + case LUTEX_TABLE_CORE_ENTRY_TYPE_CODE: + SHOW("LUTEX_TABLE_CORE_ENTRY_TYPE_CODE case"); + { + size_t n_lutexes = *ptr; + size_t fdoffset = (*(ptr + 1) + 1) * (os_vm_page_size); + size_t data_length = n_lutexes * sizeof(struct sap *); + struct lutex **lutexes_to_resurrect = malloc(data_length); + long bytes_read; + + lseek(fd, fdoffset + file_offset, SEEK_SET); + + FSHOW((stderr, "attempting to read %ld lutexes from core\n", n_lutexes)); + bytes_read = read(fd, lutexes_to_resurrect, data_length); + + /* XXX */ + if (bytes_read != data_length) { + lose("Could not read the lutex table"); + } + else { + int i; + + for (i=0; i 0) { @@ -247,7 +427,16 @@ load_core_file(char *file) size -= bytes_read; while (bytes_read) { bytes_read -= sizeof(long); - page_table[offset++].first_object_offset = data[i++]; + /* Ignore all zeroes. The size of the page table + * core entry was rounded up to os_vm_page_size + * during the save, and might now have more + * elements than the page table. + */ + if (data[i]) { + page_table[offset].region_start_offset = data[i]; + } + i++; + offset++; } } @@ -267,3 +456,4 @@ load_core_file(char *file) SHOW("returning from load_core_file(..)"); return initial_function; } +