/* Copyright (C) 2009 Zdenek Prikryl (zprikryl@redhat.com) Copyright (C) 2009 RedHat inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "libabrt.h" #include #include #include #include #include #include static void trim_unstrip_output(char *result, const char *unstrip_n_output) { // lines look like this: // 0x400000+0x209000 23c77451cf6adff77fc1f5ee2a01d75de6511dda@0x40024c - - [exe] // 0x400000+0x209000 ab3c8286aac6c043fd1bb1cc2a0b88ec29517d3e@0x40024c /bin/sleep /usr/lib/debug/bin/sleep.debug [exe] // 0x7fff313ff000+0x1000 389c7475e3d5401c55953a425a2042ef62c4c7df@0x7fff313ff2f8 . - linux-vdso.so.1 // ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ // we drop everything except the marked part ^ char *dst = result; const char *line = unstrip_n_output; while (*line) { const char *eol = strchrnul(line, '\n'); const char *plus = (char*)memchr(line, '+', eol - line); if (plus) { while (++plus < eol && *plus != '@') { if (!isspace(*plus)) { *dst++ = *plus; } } } if (*eol != '\n') break; line = eol + 1; } *dst = '\0'; } static struct sr_core_thread * core_thread_from_core_stacktrace(struct sr_core_stacktrace *stacktrace) { struct sr_core_thread *thread = sr_core_stacktrace_find_crash_thread(stacktrace); if (!thread) { log_info("Failed to find crash thread"); return NULL; } return thread; } static struct sr_core_stacktrace * core_stacktrace_from_core_json(char *core_backtrace) { char *error = NULL; struct sr_core_stacktrace *stacktrace = sr_core_stacktrace_from_json_text(core_backtrace, &error); if (!stacktrace) { if (error) { log_info("Failed to parse core backtrace: %s", error); free(error); } return NULL; } return stacktrace; } static char *build_ids_from_core_backtrace(const char *dump_dir_name) { char *core_backtrace_path = xasprintf("%s/"FILENAME_CORE_BACKTRACE, dump_dir_name); char *json = xmalloc_open_read_close(core_backtrace_path, /*maxsize:*/ NULL); free(core_backtrace_path); if (!json) return NULL; struct sr_core_stacktrace *stacktrace = core_stacktrace_from_core_json(json); free(json); if (!stacktrace) return NULL; struct sr_core_thread *thread = core_thread_from_core_stacktrace(stacktrace); if (!thread) { sr_core_stacktrace_free(stacktrace); return NULL; } void *build_id_list = NULL; struct strbuf *strbuf = strbuf_new(); for (struct sr_core_frame *frame = thread->frames; frame; frame = frame->next) { if (frame->build_id) build_id_list = g_list_prepend(build_id_list, frame->build_id); } build_id_list = g_list_sort(build_id_list, (GCompareFunc)strcmp); for (GList *iter = build_id_list; iter; iter = g_list_next(iter)) { GList *next = g_list_next(iter); if (next == NULL || 0 != strcmp(iter->data, next->data)) { strbuf = strbuf_append_strf(strbuf, "%s\n", (char *)iter->data); } } g_list_free(build_id_list); sr_core_stacktrace_free(stacktrace); return strbuf_free_nobuf(strbuf); } int main(int argc, char **argv) { /* I18n */ setlocale(LC_ALL, ""); #if ENABLE_NLS bindtextdomain(PACKAGE, LOCALEDIR); textdomain(PACKAGE); #endif abrt_init(argv); const char *dump_dir_name = "."; /* Can't keep these strings/structs static: _() doesn't support that */ const char *program_usage_string = _( "& [-v] -d DIR\n" "\n" "Calculates and saves UUID of coredump in problem directory DIR" ); enum { OPT_v = 1 << 0, OPT_d = 1 << 1, }; /* Keep enum above and order of options below in sync! */ struct options program_options[] = { OPT__VERBOSE(&g_verbose), OPT_STRING('d', NULL, &dump_dir_name, "DIR", _("Problem directory")), OPT_END() }; /*unsigned opts =*/ parse_opts(argc, argv, program_options, program_usage_string); export_abrt_envvars(0); char *unstrip_n_output = NULL; char *coredump_path = xasprintf("%s/"FILENAME_COREDUMP, dump_dir_name); if (access(coredump_path, R_OK) == 0) unstrip_n_output = run_unstrip_n(dump_dir_name, /*timeout_sec:*/ 30); free(coredump_path); if (unstrip_n_output) { /* Run unstrip -n and trim its output, leaving only sizes and build ids */ /* modifies unstrip_n_output in-place: */ trim_unstrip_output(unstrip_n_output, unstrip_n_output); } else { /* bad dump_dir_name, can't run unstrip, etc... * or maybe missing coredump - try generating it from core_backtrace */ unstrip_n_output = build_ids_from_core_backtrace(dump_dir_name); } /* Hash package + executable + unstrip_n_output and save it as UUID */ struct dump_dir *dd = dd_opendir(dump_dir_name, /*flags:*/ 0); if (!dd) return 1; char *executable = dd_load_text(dd, FILENAME_EXECUTABLE); /* FILENAME_PACKAGE may be missing if ProcessUnpackaged = yes... */ char *package = dd_load_text_ext(dd, FILENAME_PACKAGE, DD_FAIL_QUIETLY_ENOENT); /* Package variable has "firefox-3.5.6-1.fc11[.1]" format */ /* Remove distro suffix and maybe least significant version number */ char *p = package; while (*p) { if (*p == '.' && (p[1] < '0' || p[1] > '9')) { /* We found "XXXX.nondigitXXXX", trim this part */ *p = '\0'; break; } p++; } char *first_dot = strchr(package, '.'); if (first_dot) { char *last_dot = strrchr(first_dot, '.'); if (last_dot != first_dot) { /* There are more than one dot: "1.2.3" * Strip last part, we don't want to distinguish crashes * in packages which differ only by minor release number. */ *last_dot = '\0'; } } char *string_to_hash = xasprintf("%s%s%s", package, executable, unstrip_n_output); /*free(package);*/ /*free(executable);*/ /*free(unstrip_n_output);*/ log_debug("String to hash: %s", string_to_hash); char hash_str[SHA1_RESULT_LEN*2 + 1]; str_to_sha1str(hash_str, string_to_hash); dd_save_text(dd, FILENAME_UUID, hash_str); /* Create crash_function element from core_backtrace */ char *core_backtrace_json = dd_load_text_ext(dd, FILENAME_CORE_BACKTRACE, DD_LOAD_TEXT_RETURN_NULL_ON_FAILURE); if (core_backtrace_json) { struct sr_core_stacktrace *stacktrace = core_stacktrace_from_core_json(core_backtrace_json); free(core_backtrace_json); if (!stacktrace) goto next; struct sr_core_thread *thread = core_thread_from_core_stacktrace(stacktrace); if (!thread) goto next; sr_normalize_core_thread(thread); struct sr_core_frame *frame = thread->frames; if (frame->function_name) dd_save_text(dd, FILENAME_CRASH_FUNCTION, frame->function_name); next: /* can be NULL */ sr_core_stacktrace_free(stacktrace); } dd_close(dd); return 0; }