static void core_open (char *filename, int from_tty) { const char *p; int siggy; struct cleanup *old_chain; char *temp; bfd *temp_bfd; int scratch_chan; int flags; volatile struct gdb_exception except; target_preopen (from_tty); if (!filename) { if (core_bfd) error (_("No core file specified. (Use `detach' " "to stop debugging a core file.)")); else error (_("No core file specified.")); } filename = tilde_expand (filename); if (!IS_ABSOLUTE_PATH (filename)) { temp = concat (current_directory, "/", filename, (char *) NULL); xfree (filename); filename = temp; } old_chain = make_cleanup (xfree, filename); flags = O_BINARY | O_LARGEFILE; if (write_files) flags |= O_RDWR; else flags |= O_RDONLY; scratch_chan = gdb_open_cloexec (filename, flags, 0); if (scratch_chan < 0) perror_with_name (filename); temp_bfd = gdb_bfd_fopen (filename, gnutarget, write_files ? FOPEN_RUB : FOPEN_RB, scratch_chan); if (temp_bfd == NULL) perror_with_name (filename); if (!bfd_check_format (temp_bfd, bfd_core) && !gdb_check_format (temp_bfd)) { /* Do it after the err msg */ /* FIXME: should be checking for errors from bfd_close (for one thing, on error it does not free all the storage associated with the bfd). */ make_cleanup_bfd_unref (temp_bfd); error (_("\"%s\" is not a core dump: %s"), filename, bfd_errmsg (bfd_get_error ())); } /* Looks semi-reasonable. Toss the old core file and work on the new. */ do_cleanups (old_chain); unpush_target (&core_ops); core_bfd = temp_bfd; old_chain = make_cleanup (core_close_cleanup, 0 /*ignore*/); core_gdbarch = gdbarch_from_bfd (core_bfd); /* Find a suitable core file handler to munch on core_bfd */ core_vec = sniff_core_bfd (core_bfd); validate_files (); core_data = XZALLOC (struct target_section_table); /* Find the data section */ if (build_section_table (core_bfd, &core_data->sections, &core_data->sections_end)) error (_("\"%s\": Can't find sections: %s"), bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ())); /* If we have no exec file, try to set the architecture from the core file. We don't do this unconditionally since an exec file typically contains more information that helps us determine the architecture than a core file. */ if (!exec_bfd) set_gdbarch_from_file (core_bfd); push_target (&core_ops); discard_cleanups (old_chain); /* Do this before acknowledging the inferior, so if post_create_inferior throws (can happen easilly if you're loading a core file with the wrong exec), we aren't left with threads from the previous inferior. */ init_thread_list (); inferior_ptid = null_ptid; /* Need to flush the register cache (and the frame cache) from a previous debug session. If inferior_ptid ends up the same as the last debug session --- e.g., b foo; run; gcore core1; step; gcore core2; core core1; core core2 --- then there's potential for get_current_regcache to return the cached regcache of the previous session, and the frame cache being stale. */ registers_changed (); /* Build up thread list from BFD sections, and possibly set the current thread to the .reg/NN section matching the .reg section. */ bfd_map_over_sections (core_bfd, add_to_thread_list, bfd_get_section_by_name (core_bfd, ".reg")); if (ptid_equal (inferior_ptid, null_ptid)) { /* Either we found no .reg/NN section, and hence we have a non-threaded core (single-threaded, from gdb's perspective), or for some reason add_to_thread_list couldn't determine which was the "main" thread. The latter case shouldn't usually happen, but we're dealing with input here, which can always be broken in different ways. */ struct thread_info *thread = first_thread_of_process (-1); if (thread == NULL) { inferior_appeared (current_inferior (), CORELOW_PID); inferior_ptid = pid_to_ptid (CORELOW_PID); add_thread_silent (inferior_ptid); } else switch_to_thread (thread->ptid); } post_create_inferior (&core_ops, from_tty); /* Now go through the target stack looking for threads since there may be a thread_stratum target loaded on top of target core by now. The layer above should claim threads found in the BFD sections. */ TRY_CATCH (except, RETURN_MASK_ERROR) { target_find_new_threads (); } if (except.reason < 0) exception_print (gdb_stderr, except); p = bfd_core_file_failing_command (core_bfd); if (p) printf_filtered (_("Core was generated by `%s'.\n"), p); siggy = bfd_core_file_failing_signal (core_bfd); if (siggy > 0) { /* If we don't have a CORE_GDBARCH to work with, assume a native core (map gdb_signal from host signals). If we do have CORE_GDBARCH to work with, but no gdb_signal_from_target implementation for that gdbarch, as a fallback measure, assume the host signal mapping. It'll be correct for native cores, but most likely incorrect for cross-cores. */ enum gdb_signal sig = (core_gdbarch != NULL && gdbarch_gdb_signal_from_target_p (core_gdbarch) ? gdbarch_gdb_signal_from_target (core_gdbarch, siggy) : gdb_signal_from_host (siggy)); printf_filtered (_("Program terminated with signal %d, %s.\n"), siggy, gdb_signal_to_string (sig)); } /* Fetch all registers from core file. */ target_fetch_registers (get_current_regcache (), -1); /* Now, set up the frame cache, and print the top of stack. */ reinit_frame_cache (); print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); }
void exec_file_attach (char *filename, int from_tty) { struct cleanup *cleanups; /* First, acquire a reference to the current exec_bfd. We release this at the end of the function; but acquiring it now lets the BFD cache return it if this call refers to the same file. */ gdb_bfd_ref (exec_bfd); cleanups = make_cleanup_bfd_unref (exec_bfd); /* Remove any previous exec file. */ exec_close (); /* Now open and digest the file the user requested, if any. */ if (!filename) { if (from_tty) printf_unfiltered (_("No executable file now.\n")); set_gdbarch_from_file (NULL); } else { char *scratch_pathname, *canonical_pathname; int scratch_chan; struct target_section *sections = NULL, *sections_end = NULL; char **matching; scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, filename, write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, &scratch_pathname); #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) if (scratch_chan < 0) { char *exename = alloca (strlen (filename) + 5); strcat (strcpy (exename, filename), ".exe"); scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, exename, write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, &scratch_pathname); } #endif if (scratch_chan < 0) perror_with_name (filename); make_cleanup (xfree, scratch_pathname); /* gdb_bfd_open (and its variants) prefers canonicalized pathname for better BFD caching. */ canonical_pathname = gdb_realpath (scratch_pathname); make_cleanup (xfree, canonical_pathname); if (write_files) exec_bfd = gdb_bfd_fopen (canonical_pathname, gnutarget, FOPEN_RUB, scratch_chan); else exec_bfd = gdb_bfd_open (canonical_pathname, gnutarget, scratch_chan); if (!exec_bfd) { error (_("\"%s\": could not open as an executable file: %s"), scratch_pathname, bfd_errmsg (bfd_get_error ())); } gdb_assert (exec_filename == NULL); exec_filename = gdb_realpath_keepfile (scratch_pathname); if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching)) { /* Make sure to close exec_bfd, or else "run" might try to use it. */ exec_close (); error (_("\"%s\": not in executable format: %s"), scratch_pathname, gdb_bfd_errmsg (bfd_get_error (), matching)); } if (build_section_table (exec_bfd, §ions, §ions_end)) { /* Make sure to close exec_bfd, or else "run" might try to use it. */ exec_close (); error (_("\"%s\": can't find the file sections: %s"), scratch_pathname, bfd_errmsg (bfd_get_error ())); } exec_bfd_mtime = bfd_get_mtime (exec_bfd); validate_files (); set_gdbarch_from_file (exec_bfd); /* Add the executable's sections to the current address spaces' list of sections. This possibly pushes the exec_ops target. */ add_target_sections (&exec_bfd, sections, sections_end); xfree (sections); /* Tell display code (if any) about the changed file name. */ if (deprecated_exec_file_display_hook) (*deprecated_exec_file_display_hook) (filename); } do_cleanups (cleanups); bfd_cache_close_all (); observer_notify_executable_changed (); }
void exec_file_attach (char *filename, int from_tty) { /* Remove any previous exec file. */ exec_close (); /* Now open and digest the file the user requested, if any. */ if (!filename) { if (from_tty) printf_unfiltered (_("No executable file now.\n")); set_gdbarch_from_file (NULL); } else { struct cleanup *cleanups; char *scratch_pathname, *canonical_pathname; int scratch_chan; struct target_section *sections = NULL, *sections_end = NULL; char **matching; scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST | OPF_DISABLE_REALPATH, filename, write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, &scratch_pathname); #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) if (scratch_chan < 0) { char *exename = alloca (strlen (filename) + 5); strcat (strcpy (exename, filename), ".exe"); scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST | OPF_DISABLE_REALPATH, exename, write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, &scratch_pathname); } #endif if (scratch_chan < 0) perror_with_name (filename); cleanups = make_cleanup (xfree, scratch_pathname); /* gdb_bfd_open (and its variants) prefers canonicalized pathname for better BFD caching. */ canonical_pathname = gdb_realpath (scratch_pathname); make_cleanup (xfree, canonical_pathname); if (write_files) exec_bfd = gdb_bfd_fopen (canonical_pathname, gnutarget, FOPEN_RUB, scratch_chan); else exec_bfd = gdb_bfd_open (canonical_pathname, gnutarget, scratch_chan); if (!exec_bfd) { error (_("\"%s\": could not open as an executable file: %s"), scratch_pathname, bfd_errmsg (bfd_get_error ())); } gdb_assert (exec_filename == NULL); exec_filename = xstrdup (scratch_pathname); if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching)) { /* Make sure to close exec_bfd, or else "run" might try to use it. */ exec_close (); error (_("\"%s\": not in executable format: %s"), scratch_pathname, gdb_bfd_errmsg (bfd_get_error (), matching)); } /* FIXME - This should only be run for RS6000, but the ifdef is a poor way to accomplish. */ #ifdef DEPRECATED_IBM6000_TARGET /* Setup initial vmap. */ map_vmap (exec_bfd, 0); if (vmap == NULL) { /* Make sure to close exec_bfd, or else "run" might try to use it. */ exec_close (); error (_("\"%s\": can't find the file sections: %s"), scratch_pathname, bfd_errmsg (bfd_get_error ())); } #endif /* DEPRECATED_IBM6000_TARGET */ if (build_section_table (exec_bfd, §ions, §ions_end)) { /* Make sure to close exec_bfd, or else "run" might try to use it. */ exec_close (); error (_("\"%s\": can't find the file sections: %s"), scratch_pathname, bfd_errmsg (bfd_get_error ())); } exec_bfd_mtime = bfd_get_mtime (exec_bfd); validate_files (); set_gdbarch_from_file (exec_bfd); /* Add the executable's sections to the current address spaces' list of sections. This possibly pushes the exec_ops target. */ add_target_sections (&exec_bfd, sections, sections_end); xfree (sections); /* Tell display code (if any) about the changed file name. */ if (deprecated_exec_file_display_hook) (*deprecated_exec_file_display_hook) (filename); do_cleanups (cleanups); } bfd_cache_close_all (); observer_notify_executable_changed (); }
int main(int argc, char** argv) { global_logger().set_log_level(LOG_INFO); global_logger().set_log_to_console(true); // Parse command line options ----------------------------------------------- const std::string description = "Creates a folder with synthetic training data"; graphlab::command_line_options clopts(description, false); std::string output_folder = "synthetic_data"; size_t nfiles = 5; size_t D = 20; size_t nusers = 1000; size_t nmovies = 10000; size_t nvalidate = 2; size_t npredict = 1; double noise = 0.1; double stdev = 2; double alpha = 1.8; clopts.attach_option("dir", output_folder, "Location to create the data files"); clopts.attach_option("nfiles", nfiles, "The number of files to generate."); clopts.attach_option("D", D, "Number of latent dimensions."); clopts.attach_option("nusers", nusers, "The number of users."); clopts.attach_option("nmovies", nmovies, "The number of movies."); clopts.attach_option("alpha", alpha, "The power-law constant."); clopts.attach_option("nvalidate", nvalidate, "The validate ratings pers user"); clopts.attach_option("npredict", npredict, "The predict ratings pers user"); clopts.attach_option("noise", noise, "The standard deviation noise parameter"); clopts.attach_option("stdev", stdev, "The standard deviation in latent factor values"); if(!clopts.parse(argc, argv)) { std::cout << "Error in parsing command line arguments." << std::endl; return EXIT_FAILURE; } std::cout << "Creating data directory: " << output_folder << std::endl; boost::filesystem::path directory(output_folder); if(!boost::filesystem::create_directory(output_folder)) { logstream(LOG_ERROR) << "Error creating directory: " << directory << std::endl; return EXIT_FAILURE; } std::cout << "Opening files:" << std::endl; std::vector< std::ofstream* > train_files(nfiles); std::vector< std::ofstream* > validate_files(nfiles); std::vector< std::ofstream* > predict_files(nfiles); for(size_t i = 0; i < nfiles; ++i) { const std::string train_fname = output_folder + "/graph_" + graphlab::tostr(i) + ".tsv"; train_files[i] = new std::ofstream(train_fname.c_str()); if(!train_files[i]->good()) { logstream(LOG_ERROR) << "Error creating file: " << train_fname; } const std::string validate_fname = output_folder + "/graph_" + graphlab::tostr(i) + ".tsv.validate"; validate_files[i] = new std::ofstream(validate_fname.c_str()); if(!validate_files[i]->good()){ logstream(LOG_ERROR) << "Error creating file: " << train_fname; } const std::string predict_fname = output_folder + "/graph_" + graphlab::tostr(i) + ".tsv.predict"; predict_files[i] = new std::ofstream(predict_fname.c_str()); if(!predict_files[i]->good()){ logstream(LOG_ERROR) << "Error creating file: " << train_fname; } } // Make synthetic latent factors std::vector< vec_type > user_factors(nusers); std::vector< vec_type > movie_factors(nmovies); // Create a shared random number generator graphlab::random::generator gen; gen.seed(31413); std::cout << "Constructing latent user factors" << std::endl; foreach(vec_type& factor, user_factors) { factor.resize(D); // Randomize the factor for(size_t d = 0; d < D; ++d) factor(d) = gen.gaussian(0, stdev); }
int main(int argc, char *argv[]) { int sockfd, portno, n; struct sockaddr_in serv_addr; struct hostent *server; char buffer[BUFFERSIZE]; if (argc <4) { fprintf(stderr,"usage %s plaintext key port#\n", argv[0]); exit(0); } //validate the plaintext and key files validate_files(argv[1], argv[2]); /* Create a socket point */ portno = atoi(argv[3]); sockfd = socket(AF_INET, SOCK_STREAM, 0); if (sockfd < 0) { perror("ERROR opening socket"); exit(1); } server = gethostbyname("localhost"); if (server == NULL) { fprintf(stderr,"ERROR, no such host\n"); exit(0); } bzero((char *) &serv_addr, sizeof(serv_addr)); serv_addr.sin_family = AF_INET; bcopy((char *)server->h_addr, (char *)&serv_addr.sin_addr.s_addr, server->h_length); serv_addr.sin_port = htons(portno); /* Now connect to the server */ if (connect(sockfd, (struct sockaddr*)&serv_addr, sizeof(serv_addr)) < 0) { perror("ERROR connecting"); exit(1); } // handshake with server bzero(buffer, BUFFERSIZE); write(sockfd, "otp_enc", sizeof("otp_enc")); read(sockfd, buffer, sizeof(buffer)); if(strcmp("otp_enc_d", buffer) != 0) { printf("Unable to find otp_enc_d \n"); exit(2); } //load the plaintext to buffer bzero(buffer, BUFFERSIZE); loadfile(argv[1], buffer, sockfd); getMessage(buffer, sockfd); /* Now send the key */ bzero(buffer, BUFFERSIZE); loadfile(argv[2], buffer, sockfd); /* Now read server response */ bzero(buffer, BUFFERSIZE); getMessage(buffer, sockfd); printf( "%s", buffer ); return 0; }
void exec_file_attach (char *filename, int from_tty) { /* Remove any previous exec file. */ unpush_target (&exec_ops); /* Now open and digest the file the user requested, if any. */ if (!filename) { if (from_tty) printf_unfiltered ("No executable file now.\n"); } else { char *scratch_pathname; int scratch_chan; scratch_chan = openp (getenv ("PATH"), 1, filename, write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0, &scratch_pathname); #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) if (scratch_chan < 0) { char *exename = alloca (strlen (filename) + 5); strcat (strcpy (exename, filename), ".exe"); scratch_chan = openp (getenv ("PATH"), 1, exename, write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0, &scratch_pathname); } #endif if (scratch_chan < 0) perror_with_name (filename); exec_bfd = bfd_fdopenr (scratch_pathname, gnutarget, scratch_chan); if (!exec_bfd) error ("\"%s\": could not open as an executable file: %s", scratch_pathname, bfd_errmsg (bfd_get_error ())); /* At this point, scratch_pathname and exec_bfd->name both point to the same malloc'd string. However exec_close() will attempt to free it via the exec_bfd->name pointer, so we need to make another copy and leave exec_bfd as the new owner of the original copy. */ scratch_pathname = xstrdup (scratch_pathname); make_cleanup (xfree, scratch_pathname); if (!bfd_check_format (exec_bfd, bfd_object)) { /* Make sure to close exec_bfd, or else "run" might try to use it. */ exec_close (0); error ("\"%s\": not in executable format: %s", scratch_pathname, bfd_errmsg (bfd_get_error ())); } /* FIXME - This should only be run for RS6000, but the ifdef is a poor way to accomplish. */ #ifdef DEPRECATED_IBM6000_TARGET /* Setup initial vmap. */ map_vmap (exec_bfd, 0); if (vmap == NULL) { /* Make sure to close exec_bfd, or else "run" might try to use it. */ exec_close (0); error ("\"%s\": can't find the file sections: %s", scratch_pathname, bfd_errmsg (bfd_get_error ())); } #endif /* DEPRECATED_IBM6000_TARGET */ if (build_section_table (exec_bfd, &exec_ops.to_sections, &exec_ops.to_sections_end)) { /* Make sure to close exec_bfd, or else "run" might try to use it. */ exec_close (0); error ("\"%s\": can't find the file sections: %s", scratch_pathname, bfd_errmsg (bfd_get_error ())); } #ifdef DEPRECATED_HPUX_TEXT_END DEPRECATED_HPUX_TEXT_END (&exec_ops); #endif validate_files (); set_gdbarch_from_file (exec_bfd); push_target (&exec_ops); /* Tell display code (if any) about the changed file name. */ if (exec_file_display_hook) (*exec_file_display_hook) (filename); } }