/* * There is a chicken and egg problem with calloc. dlsym * is calling calloc. So the constructor (init_malloc) will call calloc * to resolve the malloc/realloc/free/... funtions. * Our calloc in turn will call real_malloc and we will end up here when * the constructor is not yet done. * Therefore we need to write a very crude malloc that will return a bit * of space when dlsym needs it. * In other cases it will force the call of the constructor. */ static void *default_malloc(size_t size) { /* * TBD: We should protect extra_space_count access/modification * Now at the time it is used there should not be that many * threads. So is it really needed? */ char *ptr = &extra_space[extra_space_count]; if ((extra_space_count + size) > EXTRA_STATIC_SPACE) { /* * If too much data is requested, this is not dlsym. * So we can force the call to init_malloc. */ init_malloc(); if (real_malloc == default_malloc) { debug("Failed to resolve 'malloc', returning NULL\n"); return NULL; } return real_malloc(size); } else { /* it is assumed this space will never be released */ extra_space_count += size; } return ptr; }
static void klib_init() { init_tls(); init_kthread(); init_halloc(); init_salloc(); init_malloc(); //test_malloc(); }
static bool init_libc() { if (init_malloc() == false) goto err; if (stream_file_buffer_init() == false) goto err; return true; err: return false; }
/************************************************************************** * init_memory * * */ void init_memory (void) { volatile int *p; last_addr = (void *)&end; #ifdef PC9801 outb (0x00f2, 0); /* 1M 以上の領域を使用できるようにする。*/ #elif IBMPC /* IBMPC (互換機) で A20 をイネーブルにする。 * 0xD1 -> out (0x64) * 0xDF -> out (0x60) */ enable_A20 (); #endif for (p = (int *)0x100000; (int)p < 0xf000000; (int)p += 0x100000) { *p = 0; *p = 0xAA; if (*p != 0xAA) break; } boot_printf ("Extended Memory = %d K bytes\n", ((int)p - 0x100000) / 1000); boot_printf ("USE Memory = %d bytes\n", last_addr); ext_mem = ((int)p - 0x100000); base_mem = BASE_MEM; real_mem = ext_mem + BASE_MEM; #ifdef nodef /* malloc 機構の初期化 */ init_malloc ((void *)(2 * 1024 * 1024), MALLOC_SIZE); #endif /* 640K バイトから下位 100 K バイトの領域を malloc 用に使用する */ init_malloc ((void *)(640 * 1024), MALLOC_SIZE); }
static void init_mem_map() { if (n_total_memory <= KERNEL_MEM) return; u32 page_count = n_total_memory >> 12; u32 kernel_page_count = KERNEL_MEM >> 12; for (u32 i = 0; i < kernel_page_count; ++i) setbit(p_mem_map, i); for (u32 i = kernel_page_count; i < page_count; ++i) unsetbit(p_mem_map, i); init_malloc(); }
/** * For this default free function, we force the constructor and call the * real free if the function address resolution was successful. */ static void default_free(void *ptr) { /* * if free is called before the constructor, we force the * constructor. */ init_malloc(); /* if real_free was not found, we return NULL */ if (real_free == default_free) { debug("Failed to resolve 'free'\n"); return; } /* We can now use the real_free */ real_free(ptr); }
/** * For this default posix_memalign function, we force the constructor and * call the real posix_memalign if the function address resolution was * successful. */ static int default_posix_memalign(void **memptr, size_t alignment, size_t size) { /* * if posix_memalign is called before the constructor, we force the * constructor. */ init_malloc(); /* if real_posix_memalign was not found, we return NULL */ if (real_posix_memalign == default_posix_memalign) { debug ("Failed to resolve 'default_posix_memalign', returning NULL\n"); return -ENOMEM; } /* We can now use the real_posix_memalign */ return real_posix_memalign(memptr, alignment, size); }
void *malloc_for_realloc(void *ptr_to_use, size_t size) { void *ptr_to_ret; t_elem *elem_to_use; ptr_to_ret = NULL; elem_to_use = NULL; if (g_str == NULL) { if (init_malloc() == -1) return (NULL); } ptr_to_ret = ptr_to_use; if ((elem_to_use = ret_free_good_elem(size)) == NULL) { if ((ptr_to_ret = check_add_elem_and_sbrk(ptr_to_ret, size)) == NULL) return (NULL); if (refill_elem(ptr_to_ret, ptr_to_use, find_elem_in_list(g_str->nb_of_elems - 1), size) == NULL) return (NULL); } return (ptr_to_ret); }
int main(int argc, char *argv[]) { int fd; struct stat statbuf; off_t size; unsigned nr_workers; int workers_left_alive; struct pollfd *polls; struct worker *workers; unsigned x; int idx; int *poll_slots_to_workers; int offline; int prepopulate; int poll_slots_in_use; struct mallinfo mi; init_malloc(false); gettimeofday(&start, NULL); if (argc == 1) errx(1, "arguments are either --offline and a list of files, or a list of ip port1 port2 triples"); prepopulate = 0; if (!strcmp(argv[1], "--prepopulate")) { prepopulate = 1; argv++; argc--; } offline = 0; if (!strcmp(argv[1], "--offline")) offline = 1; if (!offline) { if ((argc - 2) % 3) errx(1, "non-integer number of workers?"); fd = open(argv[1], O_RDONLY); if (fd < 0) err(1, "open(%s)", argv[1]); if (fstat(fd, &statbuf) < 0) err(1, "stat(%s)", argv[1]); size = statbuf.st_size; nr_workers = (argc - 2) / 3; } else { fd = -1; size = 0; nr_workers = argc - 2; } workers = calloc(nr_workers, sizeof(workers[0])); polls = calloc(nr_workers, sizeof(polls[0])); poll_slots_to_workers = calloc(nr_workers, sizeof(polls[0])); for (x = 0; x < nr_workers; x++) { if (offline) { workers[x].to_worker_fd = -1; workers[x].from_worker_fd = open(argv[x + 2], O_RDONLY | O_NONBLOCK); if (workers[x].from_worker_fd < 0) err(1, "opening %s", argv[x + 2]); polls[x].fd = workers[x].from_worker_fd; polls[x].events = POLLIN; } else { connect_to_worker(argv[x * 3 + 2], argv[x * 3 + 3], argv[x * 3 + 4], &workers[x].to_worker_fd, &workers[x].from_worker_fd); polls[x].fd = workers[x].to_worker_fd; polls[x].events = POLLOUT; workers[x].send_offset = x * (size / nr_workers); if (x != 0) workers[x-1].end_of_chunk = workers[x].send_offset; } workers[x].finished_hash_entries = -1; poll_slots_to_workers[x] = x; } workers[nr_workers - 1].end_of_chunk = size; workers_left_alive = nr_workers; poll_slots_in_use = nr_workers; DBG("Start main loop\n"); while (workers_left_alive != 0) { int r = poll(polls, poll_slots_in_use, -1); if (r < 0) err(1, "poll()"); for (x = 0; x < poll_slots_in_use && r; x++) { if (!polls[x].revents) continue; r--; idx = poll_slots_to_workers[x]; assert(!(polls[x].revents & POLLNVAL)); if (polls[x].revents & POLLERR) errx(1, "error on worker %d", idx); if (polls[x].revents & POLLHUP) { if (workers[idx].to_worker_fd < 0) { polls[x].revents = POLLIN; warnx("worker %d hung up on us, but that's okay", idx); } else { errx(1, "worker %d hung up on us when it really shouldn't have done", idx); } } if (polls[x].revents & POLLOUT) { ssize_t s; assert(!offline); assert(workers[idx].send_offset < workers[idx].end_of_chunk); s = sendfile(workers[idx].to_worker_fd, fd, &workers[idx].send_offset, workers[idx].end_of_chunk - workers[idx].send_offset); if (s == 0) errx(1, "worker hung up on us"); if (s < 0) err(1, "sending to worker"); assert(workers[idx].send_offset <= workers[idx].end_of_chunk); if (workers[idx].send_offset == workers[idx].end_of_chunk) { DBG("Finished sending input to worker %d\n", idx); if (prepopulate) { memmove(poll_slots_to_workers + x, poll_slots_to_workers + x + 1, (poll_slots_in_use - x - 1) * sizeof(int)); memmove(polls + x, polls + x + 1, (poll_slots_in_use - x - 1) * sizeof(polls[0])); poll_slots_in_use--; if (poll_slots_in_use == 0) { /* Okay, we've done the prepopulate phase. Switch modes. */ DBG("Finished prepopulate phase\n"); for (idx = 0; idx < nr_workers; idx++) { polls[idx].events = POLLIN; polls[idx].revents = 0; polls[idx].fd = workers[idx].from_worker_fd; poll_slots_to_workers[idx] = idx; close(workers[idx].to_worker_fd); workers[idx].to_worker_fd = -1; } DBG("All workers go\n"); poll_slots_in_use = nr_workers; } } else { close(workers[idx].to_worker_fd); workers[idx].to_worker_fd = -1; polls[x].events = POLLIN; polls[x].revents = 0; polls[x].fd = workers[idx].from_worker_fd; } } } else if (polls[x].revents & POLLIN) { do_rx(workers + idx, idx == 0, idx == nr_workers - 1, idx); } } for (x = 0; x < poll_slots_in_use; x++) { idx = poll_slots_to_workers[x]; if (workers[idx].finished) { DBG("expunge worker %d\n", idx); memmove(poll_slots_to_workers + x, poll_slots_to_workers + x + 1, (poll_slots_in_use - x - 1) * sizeof(int)); memmove(polls + x, polls + x + 1, (poll_slots_in_use - x - 1) * sizeof(polls[0])); poll_slots_in_use--; workers_left_alive--; x--; } } mi = mallinfo(); if (mi.uordblks > TARGET_MAX_HEAP_SIZE) compact_heap(workers, nr_workers, polls); } DBG("All done\n"); for (idx = last_gced_hash_slot + 1; idx < NR_HASH_TABLE_SLOTS; idx++) { struct word *w; for (w = hash_table[idx]; w; w = w->next) { printf("%16d %.*s\n", w->counter, w->len, w->word); } } printf("Boundary screw ups:\n"); for (idx = 0; idx <= last_gced_hash_slot; idx++) { struct word *w; for (w = hash_table[idx]; w; w = w->next) { printf("%16d %.*s\n", w->counter, w->len, w->word); } } DBG("Finished producing output\n"); return 0; }
static int captured_main (void *data) { struct captured_main_args *context = data; int argc = context->argc; char **argv = context->argv; int count; static int quiet = 0; static int batch = 0; static int set_args = 0; /* Pointers to various arguments from command line. */ char *symarg = NULL; char *execarg = NULL; char *corearg = NULL; char *cdarg = NULL; char *ttyarg = NULL; /* These are static so that we can take their address in an initializer. */ static int print_help; static int print_version; /* Pointers to all arguments of --command option. */ char **cmdarg; /* Allocated size of cmdarg. */ int cmdsize; /* Number of elements of cmdarg used. */ int ncmd; /* Indices of all arguments of --directory option. */ char **dirarg; /* Allocated size. */ int dirsize; /* Number of elements used. */ int ndir; struct stat homebuf, cwdbuf; char *homedir, *homeinit; int i; long time_at_startup = get_run_time (); #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) setlocale (LC_MESSAGES, ""); #endif #if defined (HAVE_SETLOCALE) setlocale (LC_CTYPE, ""); #endif bindtextdomain (PACKAGE, LOCALEDIR); textdomain (PACKAGE); /* This needs to happen before the first use of malloc. */ init_malloc (NULL); #ifdef HAVE_SBRK lim_at_start = (char *) sbrk (0); #endif #if defined (ALIGN_STACK_ON_STARTUP) i = (int) &count & 0x3; if (i != 0) alloca (4 - i); #endif cmdsize = 1; cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg)); ncmd = 0; dirsize = 1; dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg)); ndir = 0; quit_flag = 0; line = (char *) xmalloc (linesize); line[0] = '\0'; /* Terminate saved (now empty) cmd line */ instream = stdin; getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); current_directory = gdb_dirbuf; gdb_stdout = stdio_fileopen (stdout); gdb_stderr = stdio_fileopen (stderr); gdb_stdlog = gdb_stderr; /* for moment */ gdb_stdtarg = gdb_stderr; /* for moment */ gdb_stdin = stdio_fileopen (stdin); gdb_stdtargerr = gdb_stderr; /* for moment */ gdb_stdtargin = gdb_stdin; /* for moment */ /* initialize error() */ error_init (); /* Set the sysroot path. */ #ifdef TARGET_SYSTEM_ROOT_RELOCATABLE gdb_sysroot = make_relative_prefix (argv[0], BINDIR, TARGET_SYSTEM_ROOT); if (gdb_sysroot) { struct stat s; int res = 0; if (stat (gdb_sysroot, &s) == 0) if (S_ISDIR (s.st_mode)) res = 1; if (res == 0) { xfree (gdb_sysroot); gdb_sysroot = TARGET_SYSTEM_ROOT; } } else gdb_sysroot = TARGET_SYSTEM_ROOT; #else #if defined (TARGET_SYSTEM_ROOT) gdb_sysroot = TARGET_SYSTEM_ROOT; #else gdb_sysroot = ""; #endif #endif /* There will always be an interpreter. Either the one passed into this captured main, or one specified by the user at start up, or the console. Initialize the interpreter to the one requested by the application. */ interpreter_p = xstrdup (context->interpreter_p); /* Parse arguments and options. */ { int c; /* When var field is 0, use flag field to record the equivalent short option (or arbitrary numbers starting at 10 for those with no equivalent). */ enum { OPT_SE = 10, OPT_CD, OPT_ANNOTATE, OPT_STATISTICS, OPT_TUI, OPT_NOWINDOWS, OPT_WINDOWS }; static struct option long_options[] = { #if defined(TUI) {"tui", no_argument, 0, OPT_TUI}, #endif {"xdb", no_argument, &xdb_commands, 1}, {"dbx", no_argument, &dbx_commands, 1}, {"readnow", no_argument, &readnow_symbol_files, 1}, {"r", no_argument, &readnow_symbol_files, 1}, {"quiet", no_argument, &quiet, 1}, {"q", no_argument, &quiet, 1}, {"silent", no_argument, &quiet, 1}, {"nx", no_argument, &inhibit_gdbinit, 1}, {"n", no_argument, &inhibit_gdbinit, 1}, {"batch", no_argument, &batch, 1}, {"epoch", no_argument, &epoch_interface, 1}, /* This is a synonym for "--annotate=1". --annotate is now preferred, but keep this here for a long time because people will be running emacses which use --fullname. */ {"fullname", no_argument, 0, 'f'}, {"f", no_argument, 0, 'f'}, {"annotate", required_argument, 0, OPT_ANNOTATE}, {"help", no_argument, &print_help, 1}, {"se", required_argument, 0, OPT_SE}, {"symbols", required_argument, 0, 's'}, {"s", required_argument, 0, 's'}, {"exec", required_argument, 0, 'e'}, {"e", required_argument, 0, 'e'}, {"core", required_argument, 0, 'c'}, {"c", required_argument, 0, 'c'}, {"pid", required_argument, 0, 'p'}, {"p", required_argument, 0, 'p'}, {"command", required_argument, 0, 'x'}, {"version", no_argument, &print_version, 1}, {"x", required_argument, 0, 'x'}, #ifdef GDBTK {"tclcommand", required_argument, 0, 'z'}, {"enable-external-editor", no_argument, 0, 'y'}, {"editor-command", required_argument, 0, 'w'}, #endif {"ui", required_argument, 0, 'i'}, {"interpreter", required_argument, 0, 'i'}, {"i", required_argument, 0, 'i'}, {"directory", required_argument, 0, 'd'}, {"d", required_argument, 0, 'd'}, {"cd", required_argument, 0, OPT_CD}, {"tty", required_argument, 0, 't'}, {"baud", required_argument, 0, 'b'}, {"b", required_argument, 0, 'b'}, {"nw", no_argument, NULL, OPT_NOWINDOWS}, {"nowindows", no_argument, NULL, OPT_NOWINDOWS}, {"w", no_argument, NULL, OPT_WINDOWS}, {"windows", no_argument, NULL, OPT_WINDOWS}, {"statistics", no_argument, 0, OPT_STATISTICS}, {"write", no_argument, &write_files, 1}, {"args", no_argument, &set_args, 1}, {0, no_argument, 0, 0} }; while (1) { int option_index; c = getopt_long_only (argc, argv, "", long_options, &option_index); if (c == EOF || set_args) break; /* Long option that takes an argument. */ if (c == 0 && long_options[option_index].flag == 0) c = long_options[option_index].val; switch (c) { case 0: /* Long option that just sets a flag. */ break; case OPT_SE: symarg = optarg; execarg = optarg; break; case OPT_CD: cdarg = optarg; break; case OPT_ANNOTATE: /* FIXME: what if the syntax is wrong (e.g. not digits)? */ annotation_level = atoi (optarg); break; case OPT_STATISTICS: /* Enable the display of both time and space usage. */ display_time = 1; display_space = 1; break; case OPT_TUI: /* --tui is equivalent to -i=tui. */ xfree (interpreter_p); interpreter_p = xstrdup ("tui"); break; case OPT_WINDOWS: /* FIXME: cagney/2003-03-01: Not sure if this option is actually useful, and if it is, what it should do. */ use_windows = 1; break; case OPT_NOWINDOWS: /* -nw is equivalent to -i=console. */ xfree (interpreter_p); interpreter_p = xstrdup (INTERP_CONSOLE); use_windows = 0; break; case 'f': annotation_level = 1; /* We have probably been invoked from emacs. Disable window interface. */ use_windows = 0; break; case 's': symarg = optarg; break; case 'e': execarg = optarg; break; case 'c': corearg = optarg; break; case 'p': /* "corearg" is shared by "--core" and "--pid" */ corearg = optarg; break; case 'x': cmdarg[ncmd++] = optarg; if (ncmd >= cmdsize) { cmdsize *= 2; cmdarg = (char **) xrealloc ((char *) cmdarg, cmdsize * sizeof (*cmdarg)); } break; #ifdef GDBTK case 'z': { extern int gdbtk_test (char *); if (!gdbtk_test (optarg)) { fprintf_unfiltered (gdb_stderr, _("%s: unable to load tclcommand file \"%s\""), argv[0], optarg); exit (1); } break; } case 'y': /* Backwards compatibility only. */ break; case 'w': { external_editor_command = xstrdup (optarg); break; } #endif /* GDBTK */ case 'i': xfree (interpreter_p); interpreter_p = xstrdup (optarg); break; case 'd': dirarg[ndir++] = optarg; if (ndir >= dirsize) { dirsize *= 2; dirarg = (char **) xrealloc ((char *) dirarg, dirsize * sizeof (*dirarg)); } break; case 't': ttyarg = optarg; break; case 'q': quiet = 1; break; case 'b': { int i; char *p; i = strtol (optarg, &p, 0); if (i == 0 && p == optarg) /* Don't use *_filtered or warning() (which relies on current_target) until after initialize_all_files(). */ fprintf_unfiltered (gdb_stderr, _("warning: could not set baud rate to `%s'.\n"), optarg); else baud_rate = i; } break; case 'l': { int i; char *p; i = strtol (optarg, &p, 0); if (i == 0 && p == optarg) /* Don't use *_filtered or warning() (which relies on current_target) until after initialize_all_files(). */ fprintf_unfiltered (gdb_stderr, _("warning: could not set timeout limit to `%s'.\n"), optarg); else remote_timeout = i; } break; case '?': fprintf_unfiltered (gdb_stderr, _("Use `%s --help' for a complete list of options.\n"), argv[0]); exit (1); } } /* If --help or --version, disable window interface. */ if (print_help || print_version) { use_windows = 0; } if (set_args) { /* The remaining options are the command-line options for the inferior. The first one is the sym/exec file, and the rest are arguments. */ if (optind >= argc) { fprintf_unfiltered (gdb_stderr, _("%s: `--args' specified but no program specified\n"), argv[0]); exit (1); } symarg = argv[optind]; execarg = argv[optind]; ++optind; set_inferior_args_vector (argc - optind, &argv[optind]); } else { /* OK, that's all the options. The other arguments are filenames. */ count = 0; for (; optind < argc; optind++) switch (++count) { case 1: symarg = argv[optind]; execarg = argv[optind]; break; case 2: /* The documentation says this can be a "ProcID" as well. We will try it as both a corefile and a pid. */ corearg = argv[optind]; break; case 3: fprintf_unfiltered (gdb_stderr, _("Excess command line arguments ignored. (%s%s)\n"), argv[optind], (optind == argc - 1) ? "" : " ..."); break; } } if (batch) quiet = 1; } /* Initialize all files. Give the interpreter a chance to take control of the console via the deprecated_init_ui_hook(). */ gdb_init (argv[0]); /* Do these (and anything which might call wrap_here or *_filtered) after initialize_all_files() but before the interpreter has been installed. Otherwize the help/version messages will be eaten by the interpreter's output handler. */ if (print_version) { print_gdb_version (gdb_stdout); wrap_here (""); printf_filtered ("\n"); exit (0); } if (print_help) { print_gdb_help (gdb_stdout); fputs_unfiltered ("\n", gdb_stdout); exit (0); } /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets GDB retain the old MI1 interpreter startup behavior. Output the copyright message before the interpreter is installed. That way it isn't encapsulated in MI output. */ if (!quiet && strcmp (interpreter_p, INTERP_MI1) == 0) { /* Print all the junk at the top, with trailing "..." if we are about to read a symbol file (possibly slowly). */ print_gdb_version (gdb_stdout); if (symarg) printf_filtered (".."); wrap_here (""); gdb_flush (gdb_stdout); /* Force to screen during slow operations */ } /* Install the default UI. All the interpreters should have had a look at things by now. Initialize the default interpreter. */ { /* Find it. */ struct interp *interp = interp_lookup (interpreter_p); if (interp == NULL) error ("Interpreter `%s' unrecognized", interpreter_p); /* Install it. */ if (!interp_set (interp)) { fprintf_unfiltered (gdb_stderr, "Interpreter `%s' failed to initialize.\n", interpreter_p); exit (1); } } /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets GDB retain the old MI1 interpreter startup behavior. Output the copyright message after the interpreter is installed when it is any sane interpreter. */ if (!quiet && !current_interp_named_p (INTERP_MI1)) { /* Print all the junk at the top, with trailing "..." if we are about to read a symbol file (possibly slowly). */ print_gdb_version (gdb_stdout); if (symarg) printf_filtered (".."); wrap_here (""); gdb_flush (gdb_stdout); /* Force to screen during slow operations */ } error_pre_print = "\n\n"; quit_pre_print = error_pre_print; /* We may get more than one warning, don't double space all of them... */ warning_pre_print = _("\nwarning: "); /* Read and execute $HOME/.gdbinit file, if it exists. This is done *before* all the command line arguments are processed; it sets global parameters, which are independent of what file you are debugging or what directory you are in. */ homedir = getenv ("HOME"); if (homedir) { homeinit = (char *) alloca (strlen (homedir) + strlen (gdbinit) + 10); strcpy (homeinit, homedir); strcat (homeinit, "/"); strcat (homeinit, gdbinit); if (!inhibit_gdbinit) { catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL); } /* Do stats; no need to do them elsewhere since we'll only need them if homedir is set. Make sure that they are zero in case one of them fails (this guarantees that they won't match if either exists). */ memset (&homebuf, 0, sizeof (struct stat)); memset (&cwdbuf, 0, sizeof (struct stat)); stat (homeinit, &homebuf); stat (gdbinit, &cwdbuf); /* We'll only need this if homedir was set. */ } /* Now perform all the actions indicated by the arguments. */ if (cdarg != NULL) { catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL); } for (i = 0; i < ndir; i++) catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL); xfree (dirarg); if (execarg != NULL && symarg != NULL && strcmp (execarg, symarg) == 0) { /* The exec file and the symbol-file are the same. If we can't open it, better only print one error message. catch_command_errors returns non-zero on success! */ if (catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL)) catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); } else { if (execarg != NULL) catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL); if (symarg != NULL) catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); } /* After the symbol file has been read, print a newline to get us beyond the copyright line... But errors should still set off the error message with a (single) blank line. */ if (!quiet) printf_filtered ("\n"); error_pre_print = "\n"; quit_pre_print = error_pre_print; warning_pre_print = _("\nwarning: "); if (corearg != NULL) { /* corearg may be either a corefile or a pid. If its first character is a digit, try attach first and then corefile. Otherwise try corefile first. */ if (isdigit (corearg[0])) { if (catch_command_errors (attach_command, corearg, !batch, RETURN_MASK_ALL) == 0) catch_command_errors (core_file_command, corearg, !batch, RETURN_MASK_ALL); } else /* Can't be a pid, better be a corefile. */ catch_command_errors (core_file_command, corearg, !batch, RETURN_MASK_ALL); } if (ttyarg != NULL) catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL); /* Error messages should no longer be distinguished with extra output. */ error_pre_print = NULL; quit_pre_print = NULL; warning_pre_print = _("warning: "); /* Read the .gdbinit file in the current directory, *if* it isn't the same as the $HOME/.gdbinit file (it should exist, also). */ if (!homedir || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat))) if (!inhibit_gdbinit) { catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL); } for (i = 0; i < ncmd; i++) { #if 0 /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that expanded into a call to setjmp(). */ if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */ { /* NOTE: I am commenting this out, because it is not clear where this feature is used. It is very old and undocumented. ezannoni: 1999-05-04 */ #if 0 if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0') read_command_file (stdin); else #endif source_command (cmdarg[i], !batch); do_cleanups (ALL_CLEANUPS); } #endif catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL); } xfree (cmdarg); /* Read in the old history after all the command files have been read. */ init_history (); if (batch) { if (attach_flag) /* Either there was a problem executing the command in the batch file aborted early, or the batch file forgot to do an explicit detach. Explicitly detach the inferior ensuring that there are no zombies. */ target_detach (NULL, 0); /* We have hit the end of the batch file. */ exit (0); } /* Do any host- or target-specific hacks. This is used for i960 targets to force the user to set a nindy target and spec its parameters. */ #ifdef BEFORE_MAIN_LOOP_HOOK BEFORE_MAIN_LOOP_HOOK; #endif /* Show time and/or space usage. */ if (display_time) { long init_time = get_run_time () - time_at_startup; printf_unfiltered (_("Startup time: %ld.%06ld\n"), init_time / 1000000, init_time % 1000000); } if (display_space) { #ifdef HAVE_SBRK extern char **environ; char *lim = (char *) sbrk (0); printf_unfiltered (_("Startup size: data size %ld\n"), (long) (lim - (char *) &environ)); #endif } #if 0 /* FIXME: cagney/1999-11-06: The original main loop was like: */ while (1) { if (!SET_TOP_LEVEL ()) { do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */ /* GUIs generally have their own command loop, mainloop, or whatever. This is a good place to gain control because many error conditions will end up here via longjmp(). */ if (deprecated_command_loop_hook) deprecated_command_loop_hook (); else deprecated_command_loop (); quit_command ((char *) 0, instream == stdin); } } /* NOTE: If the command_loop() returned normally, the loop would attempt to exit by calling the function quit_command(). That function would either call exit() or throw an error returning control to SET_TOP_LEVEL. */ /* NOTE: The function do_cleanups() was called once each time round the loop. The usefulness of the call isn't clear. If an error was thrown, everything would have already been cleaned up. If command_loop() returned normally and quit_command() was called, either exit() or error() (again cleaning up) would be called. */ #endif /* NOTE: cagney/1999-11-07: There is probably no reason for not moving this loop and the code found in captured_command_loop() into the command_loop() proper. The main thing holding back that change - SET_TOP_LEVEL() - has been eliminated. */ while (1) { catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); } /* No exit -- exit is through quit_command. */ }
void xfree(void *md, void *ptr, const char *file, const int line) { dfree(md, ptr, file, line); if (!reserve) init_malloc(); }
/* * POSIX 環境マネージャのメインルーチン * * 次の処理を行う * * ・初期化 * ポートマネージャに要求受け付け用のポートを登録する * ファイルシステム/プロセス/メモリの各処理の初期化を行う * * ・要求の受け付け * 要求の受け付けは、要求受け付けポートによって行う。 * * ・要求の処理 * * 要求の受けつけから処理がおわるまでは他の要求は受け付けない。 */ void posix_start (void) { struct posix_request request; #if 0 extern B _end; #endif if (init_port () == FAIL) { dbg_printf ("Cannot allocate port.\n"); slp_tsk (); } init_log (); #if 0 /* これではプログラムの最後をとることはできない */ init_malloc ((UW)&_end); #else /* 余裕を見て設定してあるが、manager が大きくなったときには調整が必要 */ init_malloc (0x100000); #endif /* 各機能単位での初期化 */ init_fs (); init_process (); init_memory (); banner (); for (;;) { /* 次の要求メッセージを待つ */ if (get_request (&request) == FAIL) { /* リクエスト取得に失敗した */ #ifdef DEBUG dbg_printf ("Cannot get request.\n"); #endif continue; } #ifdef DEBUG dbg_printf ("OP = %d\n ", request.operation); #endif /* 取得したリクエストを処理する */ if ((request.operation < 0) || (request.operation > NR_POSIX_SYSCALL)) { /* リクエスト要求にあるオペレーションは、サポートしていない */ error_response (&request, EP_NOSUP); } else { #ifdef DEBUG dbg_printf ("systemcall: %s\n", syscall_table[request.operation].name); #endif (*syscall_table[request.operation].syscall)(&request); } #ifdef DEBUG dbg_printf ("posix: systemcall end.\n"); #endif } /* ここには来ない */ }
extern "C" void _start() { init_malloc(); die(main()); }
int main ( void ) { char* line; time_t* led_flash_timer; time_t* reboot_timer; socket_t* socket = socket0_g; int reboot_stage = 0; /* Turn off all LEDs as a starting point */ led_clear(); /* this must be first, because all the other init functions call malloc */ init_malloc(); /* Initialize current time and some timers */ init_current_time(); led_flash_timer = init_timer(); set_timer(led_flash_timer, 500); reboot_timer = init_timer(); /* receive packet buffer */ rx_packet_g = malloc(sizeof(packet_t)); /* socket init */ socket0_g = init_socket(0); socket1_g = init_socket(1); /* open ethernet port and wait for connection requests keep trying forever */ while (!open_link()); /* infinite loop. Everything is timer, interrupt and queue driven from here on down */ while (1) { /* Flash a heartbeat LED */ if (timer_expired(led_flash_timer)) { led_flip(0); set_timer(led_flash_timer, 500); } /* Check for newly downloaded tftp file. Add to all tx buffers */ /* Has a file been uploaded via tftp ? */ if (udp_file_g != NULL) { /* Notify telnet clients that file has been received */ if (udp_file_g->ready) { udp_file_g->ready = 0; telnet_broadcast("Received file %s, %d bytes, linux %d\r\n", udp_file_g->filename, udp_file_g->total_bytes, udp_file_g->linux_boot); if (process_file(socket0_g) == 0) /* Disconnect in 1 second */ set_timer(reboot_timer, 1000); else telnet_broadcast("Not an elf file\r\n"); } } /* reboot timer expired */ if (timer_expired(reboot_timer)) { /* First stage of reboot sequence is to nicely disconnect */ if (reboot_stage == 0) { set_timer(reboot_timer, 1000); reboot_stage = 1; socket0_g->tcp_disconnect = 1; socket1_g->tcp_disconnect = 1; } else { /* Second stage of reboot sequence is to turn off ethmac and then jump to restart vector */ close_link(); reboot(); } } /* Poll both sockets in turn for activity */ if (socket == socket0_g) socket = socket1_g; else socket = socket0_g; /* Check if any tcp packets need to be re-transmitted */ tcp_retransmit(socket); /* Handle exit command */ if (socket->tcp_disconnect && socket->tcp_connection_state == TCP_OPEN) { tcp_disconnect(socket); } /* Reset connection */ if (socket->tcp_reset) { socket->tcp_connection_state = TCP_CLOSED; socket->telnet_connection_state = TELNET_CLOSED; socket->telnet_options_sent = 0; tcp_reply(socket, NULL, 0); socket->tcp_reset = 0; } /* Send telnet options */ if (socket->tcp_connection_state == TCP_OPEN && !socket->telnet_options_sent){ telnet_options(socket); socket->telnet_options_sent = 1; } /* telnet connection open Communicate with client */ else if (socket->telnet_connection_state == TELNET_OPEN) { /* Send telnet greeting */ if (!socket->telnet_sent_opening_message){ put_line (socket->telnet_txbuf, "Amber Processor Boot Loader\r\n> "); socket->telnet_sent_opening_message = 1; } /* Parse telnet rx buffer */ if (get_line(socket->telnet_rxbuf, &line)) parse_command (socket, line); /* Transmit text from telnet tx buffer */ telnet_tx(socket, socket->telnet_txbuf); } } }
static int captured_main (void *data) { /* If you add initializations here, you also need to add then to the proc do_steps_and_nexts in selftest.exp. */ struct captured_main_args *context = data; int argc = context->argc; char **argv = context->argv; int count; static int quiet = 0; static int batch = 0; static int set_args = 0; /* Pointers to various arguments from command line. */ char *symarg = NULL; char *execarg = NULL; char *corearg = NULL; char *cdarg = NULL; char *ttyarg = NULL; /* APPLE LOCAL: Set the osabi via option. */ char *osabiarg = NULL; /* These are static so that we can take their address in an initializer. */ static int print_help; static int print_version; /* Pointers to all arguments of --command option. */ char **cmdarg; /* Allocated size of cmdarg. */ int cmdsize; /* Number of elements of cmdarg used. */ int ncmd; /* Indices of all arguments of --directory option. */ char **dirarg; /* Allocated size. */ int dirsize; /* Number of elements used. */ int ndir; /* APPLE LOCAL globalbuf */ struct stat homebuf, cwdbuf, globalbuf; char *homedir; /* APPLE LOCAL attach -waitfor */ char *attach_waitfor = NULL; /* APPLE LOCAL: set the architecture. */ char *initial_arch = NULL; int i; long time_at_startup = get_run_time (); #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) setlocale (LC_MESSAGES, ""); #endif #if defined (HAVE_SETLOCALE) setlocale (LC_CTYPE, ""); #endif bindtextdomain (PACKAGE, LOCALEDIR); textdomain (PACKAGE); /* APPLE LOCAL memory */ #ifdef USE_MMALLOC init_mmalloc_default_pool ((PTR) NULL); #endif /* This needs to happen before the first use of malloc. */ init_malloc (NULL); #ifdef HAVE_SBRK lim_at_start = (char *) sbrk (0); #endif #if defined (ALIGN_STACK_ON_STARTUP) i = (int) &count & 0x3; if (i != 0) alloca (4 - i); #endif cmdsize = 1; cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg)); ncmd = 0; dirsize = 1; dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg)); ndir = 0; quit_flag = 0; line = (char *) xmalloc (linesize); line[0] = '\0'; /* Terminate saved (now empty) cmd line */ instream = stdin; getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); current_directory = gdb_dirbuf; /* APPLE LOCAL gdb_null */ gdb_null = ui_file_new (); gdb_stdout = stdio_fileopen (stdout); gdb_stderr = stdio_fileopen (stderr); gdb_stdlog = gdb_stderr; /* for moment */ gdb_stdtarg = gdb_stderr; /* for moment */ gdb_stdin = stdio_fileopen (stdin); gdb_stdtargerr = gdb_stderr; /* for moment */ gdb_stdtargin = gdb_stdin; /* for moment */ /* APPLE LOCAL: set our main thread's name */ #ifdef HAVE_PTHREAD_SETNAME_NP pthread_setname_np ("gdb main thread"); #endif /* Set the sysroot path. */ #ifdef TARGET_SYSTEM_ROOT_RELOCATABLE gdb_sysroot = make_relative_prefix (argv[0], BINDIR, TARGET_SYSTEM_ROOT); if (gdb_sysroot) { struct stat s; int res = 0; if (stat (gdb_sysroot, &s) == 0) if (S_ISDIR (s.st_mode)) res = 1; if (res == 0) { xfree (gdb_sysroot); gdb_sysroot = TARGET_SYSTEM_ROOT; } } else gdb_sysroot = TARGET_SYSTEM_ROOT; #else #if defined (TARGET_SYSTEM_ROOT) gdb_sysroot = TARGET_SYSTEM_ROOT; #else gdb_sysroot = ""; #endif #endif /* There will always be an interpreter. Either the one passed into this captured main, or one specified by the user at start up, or the console. Initialize the interpreter to the one requested by the application. */ interpreter_p = xstrdup (context->interpreter_p); /* Parse arguments and options. */ { int c; /* When var field is 0, use flag field to record the equivalent short option (or arbitrary numbers starting at 10 for those with no equivalent). */ enum { OPT_SE = 10, OPT_CD, OPT_ANNOTATE, OPT_STATISTICS, OPT_TUI, OPT_NOWINDOWS, OPT_WINDOWS, OPT_WAITFOR, /* APPLE LOCAL */ OPT_ARCH, /* APPLE LOCAL */ OPT_OSABI /* APPLE LOCAL */ }; static struct option long_options[] = { #if defined(TUI) {"tui", no_argument, 0, OPT_TUI}, #endif {"xdb", no_argument, &xdb_commands, 1}, {"dbx", no_argument, &dbx_commands, 1}, {"readnow", no_argument, &readnow_symbol_files, 1}, {"r", no_argument, &readnow_symbol_files, 1}, {"quiet", no_argument, &quiet, 1}, {"q", no_argument, &quiet, 1}, {"silent", no_argument, &quiet, 1}, {"nx", no_argument, &inhibit_gdbinit, 1}, {"n", no_argument, &inhibit_gdbinit, 1}, {"batch", no_argument, &batch, 1}, {"epoch", no_argument, &epoch_interface, 1}, /* This is a synonym for "--annotate=1". --annotate is now preferred, but keep this here for a long time because people will be running emacses which use --fullname. */ {"fullname", no_argument, 0, 'f'}, {"f", no_argument, 0, 'f'}, {"annotate", required_argument, 0, OPT_ANNOTATE}, {"help", no_argument, &print_help, 1}, {"se", required_argument, 0, OPT_SE}, {"symbols", required_argument, 0, 's'}, {"s", required_argument, 0, 's'}, {"exec", required_argument, 0, 'e'}, {"e", required_argument, 0, 'e'}, {"core", required_argument, 0, 'c'}, {"c", required_argument, 0, 'c'}, {"pid", required_argument, 0, 'p'}, {"p", required_argument, 0, 'p'}, {"command", required_argument, 0, 'x'}, {"version", no_argument, &print_version, 1}, {"x", required_argument, 0, 'x'}, #ifdef GDBTK {"tclcommand", required_argument, 0, 'z'}, {"enable-external-editor", no_argument, 0, 'y'}, {"editor-command", required_argument, 0, 'w'}, #endif {"ui", required_argument, 0, 'i'}, {"interpreter", required_argument, 0, 'i'}, {"i", required_argument, 0, 'i'}, {"directory", required_argument, 0, 'd'}, {"d", required_argument, 0, 'd'}, {"cd", required_argument, 0, OPT_CD}, {"tty", required_argument, 0, 't'}, {"baud", required_argument, 0, 'b'}, {"b", required_argument, 0, 'b'}, {"nw", no_argument, NULL, OPT_NOWINDOWS}, {"nowindows", no_argument, NULL, OPT_NOWINDOWS}, {"w", no_argument, NULL, OPT_WINDOWS}, {"windows", no_argument, NULL, OPT_WINDOWS}, {"statistics", no_argument, 0, OPT_STATISTICS}, {"write", no_argument, &write_files, 1}, {"args", no_argument, &set_args, 1}, /* APPLE LOCAL: */ {"waitfor", required_argument, 0, OPT_WAITFOR}, /* APPLE LOCAL: */ {"arch", required_argument, 0, OPT_ARCH}, /* APPLE LOCAL: */ {"osabi", required_argument, 0, OPT_OSABI}, {"l", required_argument, 0, 'l'}, {0, no_argument, 0, 0} }; while (1) { int option_index; c = getopt_long_only (argc, argv, "", long_options, &option_index); if (c == EOF || set_args) break; /* Long option that takes an argument. */ if (c == 0 && long_options[option_index].flag == 0) c = long_options[option_index].val; switch (c) { case 0: /* Long option that just sets a flag. */ break; case OPT_SE: symarg = optarg; execarg = optarg; break; case OPT_CD: cdarg = optarg; break; case OPT_ANNOTATE: /* FIXME: what if the syntax is wrong (e.g. not digits)? */ annotation_level = atoi (optarg); break; case OPT_STATISTICS: /* Enable the display of both time and space usage. */ display_time = 1; display_space = 1; break; case OPT_TUI: /* --tui is equivalent to -i=tui. */ xfree (interpreter_p); interpreter_p = xstrdup ("tui"); break; case OPT_WINDOWS: /* FIXME: cagney/2003-03-01: Not sure if this option is actually useful, and if it is, what it should do. */ use_windows = 1; break; case OPT_NOWINDOWS: /* -nw is equivalent to -i=console. */ xfree (interpreter_p); interpreter_p = xstrdup (INTERP_CONSOLE); use_windows = 0; break; /* APPLE LOCAL: */ case OPT_WAITFOR: attach_waitfor = (char *) xmalloc (12 + strlen (optarg)); sprintf (attach_waitfor, "-waitfor \"%s\"", optarg); break; /* APPLE LOCAL: */ case OPT_ARCH: initial_arch = xstrdup (optarg); break; /* APPLE LOCAL: Set the osabi via option. This option was added along with a modification to the gdb driver shell script for armv6. Binaries with the "arm" architecture (ARM v4T) and "armv6" (ARM v6) can be inter mixed on armv6 capaable targets since all instructions in the ARM v4T instruction set are present in the ARM v6 instruction set. The same gdb executable is used for both, and the osabi set/show variable controls which gets used for cross targets. We need to set this variable prior to loading any executables so that the correct slice of a fat file can be selected. Now gdb can be launched with the "armv6" arch along with an executable and the correct slice will be selected: gdb -arch armv6 <file> */ case OPT_OSABI: osabiarg = optarg; break; /* APPLE LOCAL END */ case 'f': annotation_level = 1; /* We have probably been invoked from emacs. Disable window interface. */ use_windows = 0; break; case 's': symarg = optarg; break; case 'e': execarg = optarg; break; case 'c': corearg = optarg; break; case 'p': /* "corearg" is shared by "--core" and "--pid" */ corearg = optarg; break; case 'x': cmdarg[ncmd++] = optarg; if (ncmd >= cmdsize) { cmdsize *= 2; cmdarg = (char **) xrealloc ((char *) cmdarg, cmdsize * sizeof (*cmdarg)); } break; #ifdef GDBTK case 'z': { extern int gdbtk_test (char *); if (!gdbtk_test (optarg)) { fprintf_unfiltered (gdb_stderr, _("%s: unable to load tclcommand file \"%s\""), argv[0], optarg); exit (1); } break; } case 'y': /* Backwards compatibility only. */ break; case 'w': { external_editor_command = xstrdup (optarg); break; } #endif /* GDBTK */ case 'i': xfree (interpreter_p); interpreter_p = xstrdup (optarg); break; case 'd': dirarg[ndir++] = optarg; if (ndir >= dirsize) { dirsize *= 2; dirarg = (char **) xrealloc ((char *) dirarg, dirsize * sizeof (*dirarg)); } break; case 't': ttyarg = optarg; break; case 'q': quiet = 1; break; case 'b': { int i; char *p; i = strtol (optarg, &p, 0); if (i == 0 && p == optarg) /* Don't use *_filtered or warning() (which relies on current_target) until after initialize_all_files(). */ fprintf_unfiltered (gdb_stderr, _("warning: could not set baud rate to `%s'.\n"), optarg); else baud_rate = i; } break; case 'l': { int i; char *p; i = strtol (optarg, &p, 0); if (i == 0 && p == optarg) /* Don't use *_filtered or warning() (which relies on current_target) until after initialize_all_files(). */ fprintf_unfiltered (gdb_stderr, _("warning: could not set timeout limit to `%s'.\n"), optarg); else remote_timeout = i; } break; case '?': fprintf_unfiltered (gdb_stderr, _("Use `%s --help' for a complete list of options.\n"), argv[0]); exit (1); } } /* If --help or --version, disable window interface. */ if (print_help || print_version) { use_windows = 0; } if (set_args) { /* The remaining options are the command-line options for the inferior. The first one is the sym/exec file, and the rest are arguments. */ if (optind >= argc) { fprintf_unfiltered (gdb_stderr, _("%s: `--args' specified but no program specified\n"), argv[0]); exit (1); } symarg = argv[optind]; execarg = argv[optind]; ++optind; set_inferior_args_vector (argc - optind, &argv[optind]); } else { /* OK, that's all the options. The other arguments are filenames. */ count = 0; for (; optind < argc; optind++) switch (++count) { case 1: symarg = argv[optind]; execarg = argv[optind]; break; case 2: /* The documentation says this can be a "ProcID" as well. We will try it as both a corefile and a pid. */ corearg = argv[optind]; break; case 3: fprintf_unfiltered (gdb_stderr, _("Excess command line arguments ignored. (%s%s)\n"), argv[optind], (optind == argc - 1) ? "" : " ..."); break; } } if (batch) quiet = 1; } /* Initialize all files. Give the interpreter a chance to take control of the console via the deprecated_init_ui_hook (). */ gdb_init (argv[0]); /* Do these (and anything which might call wrap_here or *_filtered) after initialize_all_files() but before the interpreter has been installed. Otherwize the help/version messages will be eaten by the interpreter's output handler. */ if (print_version) { print_gdb_version (gdb_stdout); wrap_here (""); printf_filtered ("\n"); exit (0); } if (print_help) { print_gdb_help (gdb_stdout); fputs_unfiltered ("\n", gdb_stdout); exit (0); } /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets GDB retain the old MI1 interpreter startup behavior. Output the copyright message before the interpreter is installed. That way it isn't encapsulated in MI output. */ if (!quiet && strcmp (interpreter_p, INTERP_MI1) == 0) { /* APPLE LOCAL begin don't print dots */ /* Print all the junk at the top. */ print_gdb_version (gdb_stdout); printf_filtered ("\n"); /* APPLE LOCAL end don't print dots */ wrap_here (""); gdb_flush (gdb_stdout); /* Force to screen during slow operations */ } /* APPLE LOCAL begin */ if (state_change_hook) { state_change_hook (STATE_ACTIVE); } /* APPLE LOCAL end */ /* Install the default UI. All the interpreters should have had a look at things by now. Initialize the default interpreter. */ { /* Find it. */ struct interp *interp = interp_lookup (interpreter_p); if (interp == NULL) error (_("Interpreter `%s' unrecognized"), interpreter_p); /* Install it. */ /* APPLE LOCAL clarity */ if (interp_set (interp) == NULL) { fprintf_unfiltered (gdb_stderr, "Interpreter `%s' failed to initialize.\n", interpreter_p); exit (1); } } /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets GDB retain the old MI1 interpreter startup behavior. Output the copyright message after the interpreter is installed when it is any sane interpreter. */ if (!quiet && !current_interp_named_p (INTERP_MI1)) { /* Print all the junk at the top, with trailing "..." if we are about to read a symbol file (possibly slowly). */ print_gdb_version (gdb_stdout); if (symarg) printf_filtered (".."); wrap_here (""); gdb_flush (gdb_stdout); /* Force to screen during slow operations */ } error_pre_print = "\n\n"; quit_pre_print = error_pre_print; /* We may get more than one warning, don't double space all of them... */ warning_pre_print = _("\nwarning: "); /* APPLE LOCAL begin move inits up */ /* Make sure that they are zero in case one of them fails (this guarantees that they won't match if either exists). */ memset (&homebuf, 0, sizeof (struct stat)); memset (&cwdbuf, 0, sizeof (struct stat)); /* APPLE LOCAL end move inits up */ /* APPLE LOCAL begin global gdbinit */ memset (&globalbuf, 0, sizeof (struct stat)); stat (gdbinit_global, &globalbuf); if (!inhibit_gdbinit) { /* if (!SET_TOP_LEVEL ()) */ source_file (gdbinit_global, 0); } do_cleanups (ALL_CLEANUPS); /* APPLE LOCAL end global gdbinit */ /* APPLE LOCAL: Set the $_Xcode convenience variable at '0' before sourcing any .gdbinit files. Xcode will override this to 1 when it is launching gdb but we need to start with a value of 0 so .gdbinit files can use it in conditional expressions. */ set_internalvar (lookup_internalvar ("_Xcode"), value_from_longest (builtin_type_int, (LONGEST) 0)); /* Read and execute $HOME/.gdbinit file, if it exists. This is done *before* all the command line arguments are processed; it sets global parameters, which are independent of what file you are debugging or what directory you are in. */ homedir = getenv ("HOME"); if (homedir) { char *homeinit = xstrprintf ("%s/%s", homedir, gdbinit); /* APPLE LOCAL move inits up */ stat (homeinit, &homebuf); /* APPLE LOCAL gdbinit */ if (!inhibit_gdbinit) if ((globalbuf.st_dev != homebuf.st_dev) || (globalbuf.st_ino != homebuf.st_ino)) { catch_command_errors (source_file, homeinit, 0, RETURN_MASK_ALL); } } /* Now perform all the actions indicated by the arguments. */ if (cdarg != NULL) { catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL); } for (i = 0; i < ndir; i++) catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL); xfree (dirarg); /* APPLE LOCAL: If an architecture has been supplied, process it. FIXME: Note, this is a TOTAL hack. There should be some gdbarch'y type function that processes these options. The odd thing is that you would want the SAME function for all the gdbarch'es that are registered, so it actually lives a little above the gdbarch.... Not sure how to do that. So instead, I just hack... */ #if defined (USE_POSIX_SPAWN) || defined (USE_ARCH_FOR_EXEC) if (initial_arch != NULL) { char *arch_string = NULL; char *osabi_string; #if defined (TARGET_POWERPC) if (strcmp (initial_arch, "ppc") == 0) { arch_string = "powerpc:common"; osabi_string = "Darwin"; } else if (strcmp (initial_arch, "ppc64") == 0) { arch_string = "powerpc:common64"; osabi_string = "Darwin64"; } else warning ("invalid argument \"%s\" for \"--arch\", should be one of " "\"ppc\" or \"ppc64\"\n", initial_arch); #elif defined (TARGET_I386) if (strcmp (initial_arch, "i386") == 0) { arch_string = "i386"; osabi_string = "Darwin"; } else if (strcmp (initial_arch, "x86_64") == 0) { arch_string = "i386:x86-64"; osabi_string = "Darwin64"; } else warning ("invalid argument \"%s\" for \"--arch\", should be one of " "\"i386\" or \"x86_64\"\n", initial_arch); #elif defined (TARGET_ARM) if (strcmp (initial_arch, "arm") == 0) { arch_string = "arm"; osabi_string = "Darwin"; } else if (strcmp (initial_arch, "armv6") == 0) { arch_string = "armv6"; osabi_string = "DarwinV6"; } else warning ("invalid argument \"%s\" for \"--arch\", should be one of " "\"armv\" or \"armv6\"\n", initial_arch); #endif if (arch_string != NULL) { set_architecture_from_string (arch_string); set_osabi_from_string (osabi_string); } } #else warning ("--arch option not supported in this gdb."); #endif /* APPLE LOCAL BEGIN: Set the osabi via option. */ if (osabiarg != NULL) set_osabi_option (osabiarg); /* APPLE LOCAL END */ if (execarg != NULL && symarg != NULL && strcmp (execarg, symarg) == 0) { /* The exec file and the symbol-file are the same. If we can't open it, better only print one error message. catch_command_errors returns non-zero on success! */ if (catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL)) catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); } else { if (execarg != NULL) catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL); if (symarg != NULL) catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); } /* APPLE LOCAL begin */ if (state_change_hook && symarg != NULL) { state_change_hook (STATE_INFERIOR_LOADED); } /* APPLE LOCAL end */ /* APPLE LOCAL begin */ if (attach_waitfor != NULL) { printf_filtered ("\n"); catch_command_errors (attach_command, attach_waitfor, 0, RETURN_MASK_ALL); } /* After the symbol file has been read, print a newline to get us beyond the copyright line... But errors should still set off the error message with a (single) blank line. */ if (!quiet) printf_filtered ("\n"); error_pre_print = "\n"; quit_pre_print = error_pre_print; warning_pre_print = _("\nwarning: "); if (corearg != NULL) { if (catch_command_errors (core_file_attach, corearg, !batch, RETURN_MASK_ALL) == 0) { /* See if the core file is really a PID. */ /* Be careful, we have quoted the corearg above... */ if (corearg[0] == '"') { int len = strlen (corearg); if (corearg[len - 1] == '"') { corearg[len - 1] = '\0'; corearg += 1; } } if (isdigit (corearg[0])) catch_command_errors (attach_command, corearg, !batch, RETURN_MASK_ALL); } } if (ttyarg != NULL) catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL); /* Error messages should no longer be distinguished with extra output. */ error_pre_print = NULL; quit_pre_print = NULL; warning_pre_print = _("warning: "); /* Read the .gdbinit file in the current directory, *if* it isn't the same as the $HOME/.gdbinit file (it should exist, also). */ stat (gdbinit, &cwdbuf); if (!inhibit_gdbinit) if (((globalbuf.st_dev != cwdbuf.st_dev) || (globalbuf.st_ino != cwdbuf.st_ino)) && ((homebuf.st_dev != cwdbuf.st_dev) || (homebuf.st_ino != cwdbuf.st_ino))) { /* APPLE LOCAL: fix for CVE-2005-1705 */ if (cwdbuf.st_uid == getuid ()) catch_command_errors (source_file, gdbinit, 0, RETURN_MASK_ALL); } /* These need to be set this late in the initialization to ensure that they are defined for the current environment. They define the radix variables needed by a save-breakpoints file to preserve the radix across the breakpoints restoration assuming they are restored using the -x (-command) command line options. */ set_internalvar (lookup_internalvar ("input_radix"), value_from_longest (builtin_type_int, (LONGEST) input_radix)); set_internalvar (lookup_internalvar ("output_radix"), value_from_longest (builtin_type_int, (LONGEST) output_radix)); for (i = 0; i < ncmd; i++) { #if 0 /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that expanded into a call to setjmp(). */ if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */ { /* NOTE: I am commenting this out, because it is not clear where this feature is used. It is very old and undocumented. ezannoni: 1999-05-04 */ #if 0 if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0') read_command_file (stdin); else #endif source_file (cmdarg[i], !batch); do_cleanups (ALL_CLEANUPS); } #endif catch_command_errors (source_file, cmdarg[i], !batch, RETURN_MASK_ALL); } xfree (cmdarg); /* Read in the old history after all the command files have been read. */ init_history (); if (batch) { if (attach_flag) /* Either there was a problem executing the command in the batch file aborted early, or the batch file forgot to do an explicit detach. Explicitly detach the inferior ensuring that there are no zombies. */ target_detach (NULL, 0); /* We have hit the end of the batch file. */ exit (0); } /* Do any host- or target-specific hacks. This is used for i960 targets to force the user to set a nindy target and spec its parameters. */ #ifdef BEFORE_MAIN_LOOP_HOOK BEFORE_MAIN_LOOP_HOOK; #endif /* Show time and/or space usage. */ if (display_time) { long init_time = get_run_time () - time_at_startup; printf_unfiltered (_("Startup time: %ld.%06ld\n"), init_time / 1000000, init_time % 1000000); } if (display_space) { #ifdef HAVE_SBRK extern char **environ; char *lim = (char *) sbrk (0); printf_unfiltered (_("Startup size: data size %ld\n"), (long) (lim - (char *) &environ)); #endif } #if 0 /* FIXME: cagney/1999-11-06: The original main loop was like: */ while (1) { if (!SET_TOP_LEVEL ()) { do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */ /* GUIs generally have their own command loop, mainloop, or whatever. This is a good place to gain control because many error conditions will end up here via longjmp(). */ if (deprecated_command_loop_hook) deprecated_command_loop_hook (); else deprecated_command_loop (); quit_command ((char *) 0, instream == stdin); } } /* NOTE: If the command_loop() returned normally, the loop would attempt to exit by calling the function quit_command(). That function would either call exit() or throw an error returning control to SET_TOP_LEVEL. */ /* NOTE: The function do_cleanups() was called once each time round the loop. The usefulness of the call isn't clear. If an error was thrown, everything would have already been cleaned up. If command_loop() returned normally and quit_command() was called, either exit() or error() (again cleaning up) would be called. */ #endif /* NOTE: cagney/1999-11-07: There is probably no reason for not moving this loop and the code found in captured_command_loop() into the command_loop() proper. The main thing holding back that change - SET_TOP_LEVEL() - has been eliminated. */ while (1) { catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); } /* No exit -- exit is through quit_command. */ }