diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Makefile.am | 2 | ||||
| -rw-r--r-- | src/btparser/Makefile.am | 57 | ||||
| -rw-r--r-- | src/btparser/backtrace.c | 445 | ||||
| -rw-r--r-- | src/btparser/backtrace.h | 269 | ||||
| -rw-r--r-- | src/btparser/btparser.pc.in | 10 | ||||
| -rw-r--r-- | src/btparser/frame.c | 1027 | ||||
| -rw-r--r-- | src/btparser/frame.h | 470 | ||||
| -rw-r--r-- | src/btparser/location.c | 78 | ||||
| -rw-r--r-- | src/btparser/location.h | 118 | ||||
| -rw-r--r-- | src/btparser/normalize.c | 88 | ||||
| -rw-r--r-- | src/btparser/normalize.h | 74 | ||||
| -rw-r--r-- | src/btparser/normalize_dbus.c | 44 | ||||
| -rw-r--r-- | src/btparser/normalize_gdk.c | 44 | ||||
| -rw-r--r-- | src/btparser/normalize_glib.c | 60 | ||||
| -rw-r--r-- | src/btparser/normalize_glibc.c | 131 | ||||
| -rw-r--r-- | src/btparser/normalize_libstdcpp.c | 46 | ||||
| -rw-r--r-- | src/btparser/normalize_linux.c | 41 | ||||
| -rw-r--r-- | src/btparser/normalize_xorg.c | 46 | ||||
| -rw-r--r-- | src/btparser/thread.c | 399 | ||||
| -rw-r--r-- | src/btparser/thread.h | 215 | ||||
| -rw-r--r-- | src/btparser/utils.c | 423 | ||||
| -rw-r--r-- | src/btparser/utils.h | 284 | ||||
| -rw-r--r-- | src/plugins/Makefile.am | 4 | ||||
| -rw-r--r-- | src/plugins/abrt-action-analyze-backtrace.c | 8 | ||||
| -rw-r--r-- | src/plugins/abrt-action-generate-backtrace.c | 6 |
25 files changed, 10 insertions, 4379 deletions
diff --git a/src/Makefile.am b/src/Makefile.am index 3154d5c4..2e368af8 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -1 +1 @@ -SUBDIRS = include lib hooks btparser daemon applet gui-gtk cli plugins +SUBDIRS = include lib hooks daemon applet gui-gtk cli plugins diff --git a/src/btparser/Makefile.am b/src/btparser/Makefile.am deleted file mode 100644 index bdf4d900..00000000 --- a/src/btparser/Makefile.am +++ /dev/null @@ -1,57 +0,0 @@ -lib_LTLIBRARIES = libbtparser.la -libbtparser_la_SOURCES = \ - backtrace.h backtrace.c \ - frame.h frame.c \ - location.h location.c \ - normalize.h normalize.c \ - normalize_dbus.c \ - normalize_gdk.c \ - normalize_glib.c \ - normalize_glibc.c \ - normalize_libstdcpp.c \ - normalize_linux.c \ - normalize_xorg.c \ - thread.h thread.c \ - utils.h utils.c -libbtparser_la_CFLAGS = -Wall -Wwrite-strings -Werror -D_GNU_SOURCE -I../lib $(LIBREPORT_CFLAGS) -libbtparser_la_LDFLAGS = -version-info 1:1:0 -libbtparser_la_LIBADD = $(LIBREPORT_LIBS) - -libbtparser_includedir = $(includedir)/btparser -libbtparser_include_HEADERS = \ - backtrace.h \ - frame.h \ - location.h \ - normalize.h \ - thread.h \ - utils.h - -pkgconfigdir = $(libdir)/pkgconfig -pkgconfig_DATA = btparser.pc -EXTRA_DIST = btparser.pc.in - -# From http://www.seul.org/docs/autotut/ -# Version consists 3 numbers: CURRENT, REVISION, AGE. -# CURRENT is the version of the interface the library implements. -# Whenever a new function is added, or its name changed, or -# the number or type of its parameters (the prototype -- in -# libraries we call this the function signature), this number -# goes up. And it goes up exactly by one. -# -# REVISION is the revision of the implementation of this -# interface, i.e., when you change the library by only modifying -# code inside the functions (fixing bugs, optimizing internal -# behavior, or adding/removing/changing signatures of functions -# that are private to the library -- used only internally) you -# raise the revision number only. -# -# Age is the difference between the newest and oldest interface -# the library currently implements. Let's say you had 8 versions -# of your library's interface, 0 through 7. You are now on -# the 4th revision of the 8th interface, that is, 7:3:X (remember -# we start counting on zero). And when you had to make choices -# for what old interfaces you would keep support -- for backward -# compatibility purposes, you chose to keep support for -# interfaces 5, 6 and (obviously) the current, 7. The libtool -# version of your library would be 7:3:2 , because the Age -# is 7-5 = 2. diff --git a/src/btparser/backtrace.c b/src/btparser/backtrace.c deleted file mode 100644 index 139b315d..00000000 --- a/src/btparser/backtrace.c +++ /dev/null @@ -1,445 +0,0 @@ -/* - backtrace.c - - Copyright (C) 2010 Red Hat, 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 "backtrace.h" -#include "thread.h" -#include "frame.h" -#include "utils.h" -#include "strbuf.h" -#include "location.h" -#include "normalize.h" -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <assert.h> - -struct btp_backtrace * -btp_backtrace_new() -{ - struct btp_backtrace *backtrace = btp_malloc(sizeof(struct btp_backtrace)); - btp_backtrace_init(backtrace); - return backtrace; -} - -void -btp_backtrace_init(struct btp_backtrace *backtrace) -{ - backtrace->threads = NULL; - backtrace->crash = NULL; -} - -void -btp_backtrace_free(struct btp_backtrace *backtrace) -{ - if (!backtrace) - return; - - while (backtrace->threads) - { - struct btp_thread *rm = backtrace->threads; - backtrace->threads = rm->next; - btp_thread_free(rm); - } - - if (backtrace->crash) - btp_frame_free(backtrace->crash); - - free(backtrace); -} - -struct btp_backtrace * -btp_backtrace_dup(struct btp_backtrace *backtrace) -{ - struct btp_backtrace *result = btp_backtrace_new(); - memcpy(result, backtrace, sizeof(struct btp_backtrace)); - - if (backtrace->crash) - backtrace->crash = btp_frame_dup(backtrace->crash, false); - if (backtrace->threads) - backtrace->threads = btp_thread_dup(backtrace->threads, true); - - return result; -} - -int -btp_backtrace_get_thread_count(struct btp_backtrace *backtrace) -{ - struct btp_thread *thread = backtrace->threads; - int count = 0; - while (thread) - { - thread = thread->next; - ++count; - } - return count; -} - -void -btp_backtrace_remove_threads_except_one(struct btp_backtrace *backtrace, - struct btp_thread *thread) -{ - while (backtrace->threads) - { - struct btp_thread *delete_thread = backtrace->threads; - backtrace->threads = delete_thread->next; - if (delete_thread != thread) - btp_thread_free(delete_thread); - } - - thread->next = NULL; - backtrace->threads = thread; -} - -/** - * Loop through all threads and if a single one contains the crash - * frame on the top, return it. Otherwise, return NULL. - * - * If require_abort is true, it is also required that the thread - * containing the crash frame contains some known "abort" function. In - * this case there can be multiple threads with the crash frame on the - * top, but only one of them might contain the abort function to - * succeed. - */ -static struct btp_thread * -btp_backtrace_find_crash_thread_from_crash_frame(struct btp_backtrace *backtrace, - bool require_abort) -{ - if (btp_debug_parser) - printf("%s(backtrace, %s)\n", __FUNCTION__, require_abort ? "true" : "false"); - - assert(backtrace->threads); /* checked by the caller */ - if (!backtrace->crash || !backtrace->crash->function_name) - return NULL; - - struct btp_thread *result = NULL; - struct btp_thread *thread = backtrace->threads; - while (thread) - { - struct btp_frame *top_frame = thread->frames; - bool same_name = top_frame && - top_frame->function_name && - 0 == strcmp(top_frame->function_name, backtrace->crash->function_name); - bool abort_requirement_satisfied = !require_abort || - btp_glibc_thread_find_exit_frame(thread); - if (btp_debug_parser) - { - printf(" - thread #%d: same_name %s, abort_satisfied %s\n", - thread->number, - same_name ? "true" : "false", - abort_requirement_satisfied ? "true" : "false"); - } - - if (same_name && abort_requirement_satisfied) - { - if (NULL == result) - result = thread; - else - { - /* Second frame with the same function. Failure. */ - return NULL; - } - } - - thread = thread->next; - } - - return result; -} - -struct btp_thread * -btp_backtrace_find_crash_thread(struct btp_backtrace *backtrace) -{ - /* If there is no thread, be silent and report NULL. */ - if (!backtrace->threads) - return NULL; - - /* If there is just one thread, it is simple. */ - if (!backtrace->threads->next) - return backtrace->threads; - - /* If we have a crash frame *and* there is just one thread which has - * this frame on the top, it is also simple. - */ - struct btp_thread *thread; - thread = btp_backtrace_find_crash_thread_from_crash_frame(backtrace, false); - if (thread) - return thread; - - /* There are multiple threads with a frame indistinguishable from - * the crash frame on the top of stack. - * Try to search for known abort functions. - */ - thread = btp_backtrace_find_crash_thread_from_crash_frame(backtrace, true); - - /* We might want to search a thread with known abort function, and - * without the crash frame here. However, it hasn't been needed so - * far. - */ - return thread; /* result or null */ -} - - -void -btp_backtrace_limit_frame_depth(struct btp_backtrace *backtrace, - int depth) -{ - assert(depth > 0); - struct btp_thread *thread = backtrace->threads; - while (thread) - { - btp_thread_remove_frames_below_n(thread, depth); - thread = thread->next; - } -} - -float -btp_backtrace_quality_simple(struct btp_backtrace *backtrace) -{ - int ok_count = 0, all_count = 0; - struct btp_thread *thread = backtrace->threads; - while (thread) - { - btp_thread_quality_counts(thread, &ok_count, &all_count); - thread = thread->next; - } - - if (all_count == 0) - return 0; - - return ok_count / (float)all_count; -} - -float -btp_backtrace_quality_complex(struct btp_backtrace *backtrace) -{ - backtrace = btp_backtrace_dup(backtrace); - - /* Find the crash thread, and then normalize the backtrace. It is - * not possible to find the crash thread after the backtrace has - * been normalized. - */ - struct btp_thread *crash_thread = btp_backtrace_find_crash_thread(backtrace); - btp_normalize_backtrace(backtrace); - - /* Get the quality q1 of the full backtrace. */ - float q1 = btp_backtrace_quality_simple(backtrace); - - if (!crash_thread) - { - btp_backtrace_free(backtrace); - return q1; - } - - /* Get the quality q2 of the crash thread. */ - float q2 = btp_thread_quality(crash_thread); - - /* Get the quality q3 of the frames around the crash. First, - * duplicate the crash thread so we can cut it. Then find an exit - * frame, and remove it and everything above it - * (__run_exit_handlers and such). Then remove all the redundant - * frames (assert calls etc.) Then limit the frame count to 5. - */ - btp_thread_remove_frames_below_n(crash_thread, 5); - float q3 = btp_thread_quality(crash_thread); - - btp_backtrace_free(backtrace); - - /* Compute and return the final backtrace quality q. */ - return 0.25f * q1 + 0.35f * q2 + 0.4f * q3; -} - -char * -btp_backtrace_to_text(struct btp_backtrace *backtrace, bool verbose) -{ - struct strbuf *str = strbuf_new(); - if (verbose) - { - strbuf_append_strf(str, "Thread count: %d\n", - btp_backtrace_get_thread_count(backtrace)); - } - - if (backtrace->crash && verbose) - { - strbuf_append_str(str, "Crash frame: "); - btp_frame_append_to_str(backtrace->crash, str, verbose); - } - - struct btp_thread *thread = backtrace->threads; - while (thread) - { - btp_thread_append_to_str(thread, str, verbose); - thread = thread->next; - } - - return strbuf_free_nobuf(str); -} - -struct btp_frame * -btp_backtrace_get_crash_frame(struct btp_backtrace *backtrace) -{ - backtrace = btp_backtrace_dup(backtrace); - - struct btp_thread *crash_thread = btp_backtrace_find_crash_thread(backtrace); - if (!crash_thread) - { - btp_backtrace_free(backtrace); - return NULL; - } - - btp_normalize_backtrace(backtrace); - struct btp_frame *crash_frame = crash_thread->frames; - crash_frame = btp_frame_dup(crash_frame, false); - btp_backtrace_free(backtrace); - return crash_frame; -} - -char * -btp_backtrace_get_duplication_hash(struct btp_backtrace *backtrace) -{ - backtrace = btp_backtrace_dup(backtrace); - struct btp_thread *crash_thread = btp_backtrace_find_crash_thread(backtrace); - if (crash_thread) - btp_backtrace_remove_threads_except_one(backtrace, crash_thread); - - btp_normalize_backtrace(backtrace); - btp_backtrace_limit_frame_depth(backtrace, 3); - char *hash = btp_backtrace_to_text(backtrace, false); - btp_backtrace_free(backtrace); - return hash; -} - -struct btp_backtrace * -btp_backtrace_parse(char **input, - struct btp_location *location) -{ - char *local_input = *input; - struct btp_backtrace *imbacktrace = btp_backtrace_new(); /* im - intermediate */ - - /* The header is mandatory, but it might contain no frame header, - * in some broken backtraces. In that case, backtrace.crash value - * is kept as NULL. - */ - if (!btp_backtrace_parse_header(&local_input, - &imbacktrace->crash, - location)) - { - btp_backtrace_free(imbacktrace); - return NULL; - } - - struct btp_thread *thread, *prevthread = NULL; - while ((thread = btp_thread_parse(&local_input, location))) - { - if (prevthread) - { - btp_thread_add_sibling(prevthread, thread); - prevthread = thread; - } - else - imbacktrace->threads = prevthread = thread; - } - if (!imbacktrace->threads) - { - btp_backtrace_free(imbacktrace); - return NULL; - } - - *input = local_input; - return imbacktrace; -} - -bool -btp_backtrace_parse_header(char **input, - struct btp_frame **frame, - struct btp_location *location) -{ - int first_thread_line, first_thread_column; - char *first_thread = btp_strstr_location(*input, - "\nThread ", - &first_thread_line, - &first_thread_column); - - /* Skip the newline. */ - if (first_thread) - { - ++first_thread; - first_thread_line += 1; - first_thread_column = 0; - } - - int first_frame_line, first_frame_column; - char *first_frame = btp_strstr_location(*input, - "\n#", - &first_frame_line, - &first_frame_column); - - /* Skip the newline. */ - if (first_frame) - { - ++first_frame; - first_frame_line += 1; - first_frame_column = 0; - } - - if (first_thread) - { - if (first_frame && first_frame < first_thread) - { - /* Common case. The crash frame is present in the input - * before the list of threads begins. - */ - *input = first_frame; - btp_location_add(location, first_frame_line, first_frame_column); - } - else - { - /* Uncommon case (caused by some kernel bug) where the - * frame is missing from the header. The backtrace - * contains just threads. We silently skip the header and - * return true. - */ - *input = first_thread; - btp_location_add(location, - first_thread_line, - first_thread_column); - *frame = NULL; - return true; - } - } - else if (first_frame) - { - /* Degenerate case when the backtrace contains no thread, but - * the frame is there. - */ - *input = first_frame; - btp_location_add(location, first_frame_line, first_frame_column); - } - else - { - /* Degenerate case where the input is empty or completely - * meaningless. Report a failure. - */ - location->message = "No frame and no thread found."; - return false; - } - - /* Parse the frame header. */ - *frame = btp_frame_parse(input, location); - return *frame; -} diff --git a/src/btparser/backtrace.h b/src/btparser/backtrace.h deleted file mode 100644 index d5de3ff3..00000000 --- a/src/btparser/backtrace.h +++ /dev/null @@ -1,269 +0,0 @@ -/* - backtrace.h - - Copyright (C) 2010 Red Hat, 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. -*/ -#ifndef BTPARSER_BACKTRACE_H -#define BTPARSER_BACKTRACE_H - -#include <stdbool.h> - -#ifdef __cplusplus -extern "C" { -#endif - -struct btp_thread; -struct btp_frame; -struct btp_location; - -/** - * A backtrace obtained at the time of a program crash, consisting of - * several threads which contains frames. - */ -struct btp_backtrace -{ - struct btp_thread *threads; - /** - * The frame where the crash happened according to debugger. It - * might be that we can not tell to which thread this frame - * belongs, because some threads end with mutually - * indistinguishable frames. - */ - struct btp_frame *crash; -}; - -/** - * Creates and initializes a new backtrace structure. - * @returns - * It never returns NULL. The returned pointer must be released by - * calling the function btp_backtrace_free(). - */ -struct btp_backtrace * -btp_backtrace_new(); - -/** - * Initializes all members of the backtrace structure to their default - * values. No memory is released, members are simply overwritten. - * This is useful for initializing a backtrace structure placed on the - * stack. - */ -void -btp_backtrace_init(struct btp_backtrace *backtrace); - -/** - * Releases the memory held by the backtrace, its threads and frames. - * @param backtrace - * If the backtrace is NULL, no operation is performed. - */ -void -btp_backtrace_free(struct btp_backtrace *backtrace); - -/** - * Creates a duplicate of the backtrace. - * @param backtrace - * The backtrace to be copied. It's not modified by this function. - * @returns - * This function never returns NULL. If the returned duplicate is not - * shallow, it must be released by calling the function - * btp_backtrace_free(). - */ -struct btp_backtrace * -btp_backtrace_dup(struct btp_backtrace *backtrace); - -/** - * Returns a number of threads in the backtrace. - * @param backtrace - * It's not modified by calling this function. - */ -int -btp_backtrace_get_thread_count(struct btp_backtrace *backtrace); - -/** - * Removes all threads from the backtrace and deletes them, except the - * one provided as a parameter. - * @param thread - * This function does not check whether the thread is a member of the backtrace. - * If it's not, all threads are removed from the backtrace and then deleted. - */ -void -btp_backtrace_remove_threads_except_one(struct btp_backtrace *backtrace, - struct btp_thread *thread); - -/** - * Search all threads and tries to find the one that caused the crash. - * It might return NULL if the thread cannot be determined. - * @param backtrace - * It must be non-NULL pointer. It's not modified by calling this - * function. - */ -struct btp_thread * -btp_backtrace_find_crash_thread(struct btp_backtrace *backtrace); - -/** - * Remove frames from the bottom of threads in the backtrace, until - * all threads have at most 'depth' frames. - * @param backtrace - * Must be non-NULL pointer. - */ -void -btp_backtrace_limit_frame_depth(struct btp_backtrace *backtrace, - int depth); - -/** - * Evaluates the quality of the backtrace. The quality is the ratio of - * the number of frames with function name fully known to the number - * of all frames. This function does not take into account that some - * frames are more important than others. - * @param backtrace - * It must be non-NULL pointer. It's not modified by calling this - * function. - * @returns - * A number between 0 and 1. 0 means the lowest quality, 1 means full - * backtrace is known. - */ -float -btp_backtrace_quality_simple(struct btp_backtrace *backtrace); - -/** - * Evaluates the quality of the backtrace. The quality is determined - * depending on the ratio of frames with function name fully known to - * all frames. - * @param backtrace - * It must be non-NULL pointer. It's not modified by calling this - * function. - * @returns - * A number between 0 and 1. 0 means the lowest quality, 1 means full - * backtrace is known. The returned value takes into account that the - * thread which caused the crash is more important than the other - * threads, and the frames around the crash frame are more important - * than distant frames. - */ -float -btp_backtrace_quality_complex(struct btp_backtrace *backtrace); - -/** - * Returns textual representation of the backtrace. - * @param backtrace - * It must be non-NULL pointer. It's not modified by calling this - * function. - * @returns - * This function never returns NULL. The caller is responsible for - * releasing the returned memory using function free(). - */ -char * -btp_backtrace_to_text(struct btp_backtrace *backtrace, - bool verbose); - -/** - * Analyzes the backtrace to get the frame where a crash occurred. - * @param backtrace - * It must be non-NULL pointer. It's not modified by calling this - * function. - * @returns - * The returned value must be released by calling btp_frame_free(), - * when it's no longer needed. NULL is returned if the crash frame is - * not found. - */ -struct btp_frame * -btp_backtrace_get_crash_frame(struct btp_backtrace *backtrace); - -/** - * Calculates the duplication hash string of the backtrace. - * @param backtrace - * It must be non-NULL pointer. It's not modified by calling this - * function. - * @returns - * This function never returns NULL. The caller is responsible for - * releasing the returned memory using function free(). - */ -char * -btp_backtrace_get_duplication_hash(struct btp_backtrace *backtrace); - -/** - * Parses a textual backtrace and puts it into a structure. If - * parsing fails, the input parameter is not changed and NULL is - * returned. - * @code - * struct btp_location location; - * btp_location_init(&location); - * char *input = "..."; - * struct btp_backtrace *backtrace = btp_backtrace_parse(input, location; - * if (!backtrace) - * { - * fprintf(stderr, - * "Failed to parse the backtrace.\n" - * "Line %d, column %d: %s\n", - * location.line, - * location.column, - * location.message); - * exit(-1); - * } - * btp_backtrace_free(backtrace); - * @endcode - * @param input - * Pointer to the string with the backtrace. If this function returns - * true, this pointer is modified to point after the backtrace that - * was just parsed. - * @param location - * The caller must provide a pointer to an instance of btp_location - * here. The line and column members of the location are gradually - * increased as the parser handles the input, so the location should - * be initialized before calling this function to get reasonable - * values. When this function returns false (an error occurred), the - * structure will contain the error line, column, and message. - * @returns - * A newly allocated backtrace structure or NULL. A backtrace struct - * is returned when at least one thread was parsed from the input and - * no error occurred. The returned structure should be released by - * btp_backtrace_free(). - */ -struct btp_backtrace * -btp_backtrace_parse(char **input, - struct btp_location *location); - -/** - * Parse backtrace header if it is available in the backtrace. The - * header usually contains frame where the program crashed. - * @param input - * Pointer moved to point behind the header if the header is - * successfully detected and parsed. - * @param frame - * If this function succeeds and returns true, *frame contains the - * crash frame that is usually a part of the header. If no frame is - * detected in the header, *frame is set to NULL. - * @code - * [New Thread 11919] - * [New Thread 11917] - * Core was generated by `evince file:///tmp/Factura04-05-2010.pdf'. - * Program terminated with signal 8, Arithmetic exception. - * #0 0x000000322a2362b9 in repeat (image=<value optimized out>, - * mask=<value optimized out>, mask_bits=<value optimized out>) - * at pixman-bits-image.c:145 - * 145 pixman-bits-image.c: No such file or directory. - * in pixman-bits-image.c - * @endcode - */ -bool -btp_backtrace_parse_header(char **input, - struct btp_frame **frame, - struct btp_location *location); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/src/btparser/btparser.pc.in b/src/btparser/btparser.pc.in deleted file mode 100644 index 58cfa400..00000000 --- a/src/btparser/btparser.pc.in +++ /dev/null @@ -1,10 +0,0 @@ -prefix=@prefix@ -exec_prefix=@exec_prefix@ -libdir=@libdir@ -includedir=@includedir@ - -Name: btparser -Description: Library to parse and analyze backtraces produced by the GNU Project Debugger -Version: @PACKAGE_VERSION@ -Libs: -L${libdir} -lbtparser -Cflags: -I${includedir} diff --git a/src/btparser/frame.c b/src/btparser/frame.c deleted file mode 100644 index 2bfae070..00000000 --- a/src/btparser/frame.c +++ /dev/null @@ -1,1027 +0,0 @@ -/* - frame.c - - Copyright (C) 2010 Red Hat, 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 "frame.h" -#include "strbuf.h" -#include "utils.h" -#include "location.h" -#include <stdlib.h> -#include <stdio.h> -#include <string.h> - -struct btp_frame * -btp_frame_new() -{ - struct btp_frame *frame = btp_malloc(sizeof(struct btp_frame)); - btp_frame_init(frame); - return frame; -} - -void -btp_frame_init(struct btp_frame *frame) -{ - frame->function_name = NULL; - frame->function_type = NULL; - frame->number = 0; - frame->source_file = NULL; - frame->source_line = -1; - frame->signal_handler_called = false; - frame->address = -1; - frame->next = NULL; -} - -void -btp_frame_free(struct btp_frame *frame) -{ - if (!frame) - return; - free(frame->function_name); - free(frame->function_type); - free(frame->source_file); - free(frame); -} - -struct btp_frame * -btp_frame_dup(struct btp_frame *frame, bool siblings) -{ - struct btp_frame *result = btp_frame_new(); - memcpy(result, frame, sizeof(struct btp_frame)); - - /* Handle siblings. */ - if (siblings) - { - if (result->next) - result->next = btp_frame_dup(result->next, true); - } - else - result->next = NULL; /* Do not copy that. */ - - /* Duplicate all strings if the copy is not shallow. */ - if (result->function_name) - result->function_name = btp_strdup(result->function_name); - if (result->function_type) - result->function_type = btp_strdup(result->function_type); - if (result->source_file) - result->source_file = btp_strdup(result->source_file); - - return result; -} - -bool -btp_frame_calls_func(struct btp_frame *frame, - const char *function_name) -{ - return frame->function_name && - 0 == strcmp(frame->function_name, function_name); -} - -bool -btp_frame_calls_func_in_file(struct btp_frame *frame, - const char *function_name, - const char *source_file) -{ - return frame->function_name && - 0 == strcmp(frame->function_name, function_name) && - frame->source_file && - NULL != strstr(frame->source_file, source_file); -} - -bool -btp_frame_calls_func_in_file2(struct btp_frame *frame, - const char *function_name, - const char *source_file0, - const char *source_file1) -{ - return frame->function_name && - 0 == strcmp(frame->function_name, function_name) && - frame->source_file && - (NULL != strstr(frame->source_file, source_file0) || - NULL != strstr(frame->source_file, source_file1)); -} - -bool -btp_frame_calls_func_in_file3(struct btp_frame *frame, - const char *function_name, - const char *source_file0, - const char *source_file1, - const char *source_file2) -{ - return frame->function_name && - 0 == strcmp(frame->function_name, function_name) && - frame->source_file && - (NULL != strstr(frame->source_file, source_file0) || - NULL != strstr(frame->source_file, source_file1) || - NULL != strstr(frame->source_file, source_file2)); -} - -bool -btp_frame_calls_func_in_file4(struct btp_frame *frame, - const char *function_name, - const char *source_file0, - const char *source_file1, - const char *source_file2, - const char *source_file3) -{ - return frame->function_name && - 0 == strcmp(frame->function_name, function_name) && - frame->source_file && - (NULL != strstr(frame->source_file, source_file0) || - NULL != strstr(frame->source_file, source_file1) || - NULL != strstr(frame->source_file, source_file2) || - NULL != strstr(frame->source_file, source_file3)); -} - -int -btp_frame_cmp(struct btp_frame *f1, - struct btp_frame *f2, - bool compare_number) -{ - /* Singnal handler. */ - if (f1->signal_handler_called) - { - if (!f2->signal_handler_called) - return 1; - - /* Both contain signal handler called. */ - return 0; - } - else - { - if (f2->signal_handler_called) - return -1; - /* No signal handler called, continue. */ - } - - /* Function. */ - int function_name = btp_strcmp0(f1->function_name, f2->function_name); - if (function_name != 0) - return function_name; - int function_type = btp_strcmp0(f1->function_type, f2->function_type); - if (function_type != 0) - return function_type; - - /* Sourcefile. */ - int source_file = btp_strcmp0(f1->source_file, f2->source_file); - if (source_file != 0) - return source_file; - - /* Sourceline. */ - int source_line = f1->source_line - f2->source_line; - if (source_line != 0) - return source_line; - - /* Frame number. */ - if (compare_number) - { - int number = f1->number - f2->number; - if (number != 0) - return number; - } - - return 0; -} - -void -btp_frame_add_sibling(struct btp_frame *a, struct btp_frame *b) -{ - struct btp_frame *aa = a; - while (aa->next) - aa = aa->next; - - aa->next = b; -} - -void -btp_frame_append_to_str(struct btp_frame *frame, - struct strbuf *str, - bool verbose) -{ - if (verbose) - strbuf_append_strf(str, " #%d", frame->number); - else - strbuf_append_str(str, " "); - - if (frame->function_type) - strbuf_append_strf(str, " %s", frame->function_type); - if (frame->function_name) - strbuf_append_strf(str, " %s", frame->function_name); - if (verbose && frame->source_file) - { - if (frame->function_name) - strbuf_append_str(str, " at"); - strbuf_append_strf(str, " %s", frame->source_file); - } - - if (frame->signal_handler_called) - strbuf_append_str(str, " <signal handler called>"); - - strbuf_append_str(str, "\n"); -} - -/** - * Find string a or b in input, whatever comes first. - * If no string is found, return the \0 character at the end of input. - */ -static char * -findfirstabnul(char *input, const char *a, const char *b) -{ - size_t alen = strlen(a); - size_t blen = strlen(b); - char *p = input; - while (*p) - { - if (strncmp(p, a, alen) == 0) - return p; - if (strncmp(p, b, blen) == 0) - return p; - ++p; - } - return p; -} - -struct btp_frame * -btp_frame_parse(char **input, - struct btp_location *location) -{ - char *local_input = *input; - struct btp_frame *header = btp_frame_parse_header(input, location); - if (!header) - return NULL; - - /* Skip the variables section for now. */ - /* Todo: speedup by implementing strstrnul. */ - local_input = findfirstabnul(local_input, "\n#", "\nThread"); - if (*local_input != '\0') - ++local_input; /* ++ skips the newline */ - - if (btp_debug_parser) - { - printf("frame #%u %s\n", - header->number, - header->function_name ? header->function_name : "signal handler called"); - } - - *input = local_input; - return header; -} - -int -btp_frame_parse_frame_start(char **input, unsigned *number) -{ - char *local_input = *input; - - /* Read the hash sign. */ - if (!btp_skip_char(&local_input, '#')) - return 0; - int count = 1; - - /* Read the frame position. */ - int digits = btp_parse_unsigned_integer(&local_input, number); - count += digits; - if (0 == digits) - return 0; - - /* Read all the spaces after the positon. */ - int spaces = btp_skip_char_sequence(&local_input, ' '); - count += spaces; - if (0 == spaces) - return 0; - - *input = local_input; - return count; -} - -int -btp_frame_parseadd_operator(char **input, struct strbuf *target) -{ - char *local_input = *input; - if (0 == btp_skip_string(&local_input, "operator")) - return 0; - -#define OP(x) \ - if (0 < btp_skip_string(&local_input, x)) \ - { \ - strbuf_append_str(target, "operator"); \ - strbuf_append_str(target, x); \ - int length = local_input - *input; \ - *input = local_input; \ - return length; \ - } - - OP(">>=")OP(">>")OP(">=")OP(">"); - OP("<<=")OP("<<")OP("<=")OP("<"); - OP("->*")OP("->")OP("-"); - OP("==")OP("="); - OP("&&")OP("&=")OP("&"); - OP("||")OP("|=")OP("|"); - OP("++")OP("+=")OP("+"); - OP("--")OP("-=")OP("-"); - OP("/=")OP("/"); - OP("*=")OP("*"); - OP("%=")OP("%"); - OP("!=")OP("!"); - OP("~"); - OP("()"); - OP("[]"); - OP(","); - OP("^=")OP("^"); - OP(" new[]")OP(" new"); - OP(" delete[]")OP(" delete"); - /* User defined operators are not parsed. - Should they be? */ -#undef OP - return 0; -} - -#define FUNCTION_NAME_CHARS BTP_alnum "@.:=!*+-[]~&/%^|,_" - -int -btp_frame_parse_function_name_chunk(char **input, - bool space_allowed, - char **target) -{ - char *local_input = *input; - struct strbuf *buf = strbuf_new(); - while (*local_input) - { - if (0 < btp_frame_parseadd_operator(&local_input, buf)) - { - /* Space is allowed after operator even when it - is not normally allowed. */ - if (btp_skip_char(&local_input, ' ')) - { - /* ...but if ( follows, it is not allowed. */ - if (btp_skip_char(&local_input, '(')) - { - /* Return back both the space and (. */ - local_input -= 2; - } - else - strbuf_append_char(buf, ' '); - } - } - - if (strchr(FUNCTION_NAME_CHARS, *local_input) == NULL) - { - if (!space_allowed || strchr(" ", *local_input) == NULL) - break; - } - - strbuf_append_char(buf, *local_input); - ++local_input; - } - - if (buf->len == 0) - { - strbuf_free(buf); - return 0; - } - - *target = strbuf_free_nobuf(buf); - int total_char_count = local_input - *input; - *input = local_input; - return total_char_count; -} - -int -btp_frame_parse_function_name_braces(char **input, char **target) -{ - char *local_input = *input; - if (!btp_skip_char(&local_input, '(')) - return 0; - - struct strbuf *buf = strbuf_new(); - strbuf_append_char(buf, '('); - while (true) - { - char *namechunk = NULL; - if (0 < btp_frame_parse_function_name_chunk(&local_input, true, &namechunk) || - 0 < btp_frame_parse_function_name_braces(&local_input, &namechunk) || - 0 < btp_frame_parse_function_name_template(&local_input, &namechunk)) - { - strbuf_append_str(buf, namechunk); - free(namechunk); - } - else - break; - } - - if (!btp_skip_char(&local_input, ')')) - { - strbuf_free(buf); - return 0; - } - - strbuf_append_char(buf, ')'); - *target = strbuf_free_nobuf(buf); - int total_char_count = local_input - *input; - *input = local_input; - return total_char_count; -} - -int -btp_frame_parse_function_name_template(char **input, char **target) -{ - char *local_input = *input; - if (!btp_skip_char(&local_input, '<')) - return 0; - - struct strbuf *buf = strbuf_new(); - strbuf_append_char(buf, '<'); - while (true) - { - char *namechunk = NULL; - if (0 < btp_frame_parse_function_name_chunk(&local_input, true, &namechunk) || - 0 < btp_frame_parse_function_name_braces(&local_input, &namechunk) || - 0 < btp_frame_parse_function_name_template(&local_input, &namechunk)) - { - strbuf_append_str(buf, namechunk); - free(namechunk); - } - else - break; - } - - if (!btp_skip_char(&local_input, '>')) - { - strbuf_free(buf); - return 0; - } - - strbuf_append_char(buf, '>'); - *target = strbuf_free_nobuf(buf); - int total_char_count = local_input - *input; - *input = local_input; - return total_char_count; -} - -bool -btp_frame_parse_function_name(char **input, - char **function_name, - char **function_type, - struct btp_location *location) -{ - /* Handle unknown function name, represended by double question - mark. */ - if (btp_parse_string(input, "??", function_name)) - { - *function_type = NULL; - location->column += 2; - return true; - } - - char *local_input = *input; - /* Up to three parts of function name. */ - struct strbuf *buf0 = strbuf_new(), *buf1 = NULL; - - /* First character: - '~' for destructor - '*' for ???? - '_a-zA-Z' for mangled/nonmangled function name - '(' to start "(anonymous namespace)::" or something - */ - char first; - char *namechunk; - if (btp_parse_char_limited(&local_input, "~*_" BTP_alpha, &first)) - { - /* If it's a start of 'o'perator, put the 'o' back! */ - if (first == 'o') - --local_input; - else - { - strbuf_append_char(buf0, first); - ++location->column; - } - } - else - { - int chars = btp_frame_parse_function_name_braces(&local_input, - &namechunk); - if (0 < chars) - { - strbuf_append_str(buf0, namechunk); - free(namechunk); - location->column += chars; - } - else - { - location->message = "Expected function name."; - strbuf_free(buf0); - return false; - } - } - - /* The rest consists of function name, braces, templates...*/ - while (true) - { - char *namechunk = NULL; - int chars = btp_frame_parse_function_name_chunk(&local_input, - false, - &namechunk); - - if (0 == chars) - { - chars = btp_frame_parse_function_name_braces(&local_input, - &namechunk); - } - - if (0 == chars) - { - chars = btp_frame_parse_function_name_template(&local_input, - &namechunk); - } - - if (0 == chars) - break; - - strbuf_append_str(buf0, namechunk); - free(namechunk); - location->column += chars; - } - - /* Function name MUST be ended by empty space. */ - char space; - if (!btp_parse_char_limited(&local_input, BTP_space, &space)) - { - strbuf_free(buf0); - location->message = "Space or newline expected after function name."; - return false; - } - - /* Some C++ function names and function types might contain suffix - " const". */ - int chars = btp_skip_string(&local_input, "const"); - if (0 < chars) - { - strbuf_append_char(buf0, space); - btp_location_eat_char(location, space); - strbuf_append_str(buf0, "const"); - location->column += chars; - - /* Check the empty space after function name again.*/ - if (!btp_parse_char_limited(&local_input, BTP_space, &space)) - { - /* Function name MUST be ended by empty space. */ - strbuf_free(buf0); - location->message = "Space or newline expected after function name."; - return false; - } - } - - /* Maybe the first series was just a type of the function, and now - the real function follows. Now, we know it must not start with - '(', nor with '<'. */ - chars = btp_frame_parse_function_name_chunk(&local_input, - false, - &namechunk); - if (0 < chars) - { - /* Eat the space separator first. */ - btp_location_eat_char(location, space); - - buf1 = strbuf_new(); - strbuf_append_str(buf1, namechunk); - free(namechunk); - location->column += chars; - - /* The rest consists of a function name parts, braces, templates...*/ - while (true) - { - char *namechunk = NULL; - chars = btp_frame_parse_function_name_chunk(&local_input, - false, - &namechunk); - if (0 == chars) - { - chars = btp_frame_parse_function_name_braces(&local_input, - &namechunk); - } - if (0 == chars) - { - chars = btp_frame_parse_function_name_template(&local_input, - &namechunk); - } - if (0 == chars) - break; - - strbuf_append_str(buf1, namechunk); - free(namechunk); - location->column += chars; - } - - /* Function name MUST be ended by empty space. */ - if (!btp_parse_char_limited(&local_input, BTP_space, &space)) - { - strbuf_free(buf0); - strbuf_free(buf1); - location->message = "Space or newline expected after function name."; - return false; - } - } - - /* Again, some C++ function names might contain suffix " const" */ - chars = btp_skip_string(&local_input, "const"); - if (0 < chars) - { - struct strbuf *buf = buf1 ? buf1 : buf0; - strbuf_append_char(buf, space); - btp_location_eat_char(location, space); - strbuf_append_str(buf, "const"); - location->column += chars; - - /* Check the empty space after function name again.*/ - if (!btp_skip_char_limited(&local_input, BTP_space)) - { - /* Function name MUST be ended by empty space. */ - strbuf_free(buf0); - strbuf_free(buf1); - location->message = "Space or newline expected after function name."; - return false; - } - } - - /* Return back to the empty space. */ - --local_input; - - if (buf1) - { - *function_name = strbuf_free_nobuf(buf1); - *function_type = strbuf_free_nobuf(buf0); - } - else - { - *function_name = strbuf_free_nobuf(buf0); - *function_type = NULL; - } - - *input = local_input; - return true; -} - -bool -btp_frame_skip_function_args(char **input, struct btp_location *location) -{ - char *local_input = *input; - if (!btp_skip_char(&local_input, '(')) - { - location->message = "Expected '(' to start function argument list."; - return false; - } - location->column += 1; - - int depth = 0; - bool string = false; - bool escape = false; - do - { - if (string) - { - if (escape) - escape = false; - else if (*local_input == '\\') - escape = true; - else if (*local_input == '"') - string = false; - } - else - { - if (*local_input == '"') - string = true; - else if (*local_input == '(') - ++depth; - else if (*local_input == ')') - { - if (depth > 0) - --depth; - else - break; - } - } - btp_location_eat_char(location, *local_input); - ++local_input; - } - while (*local_input); - - if (depth != 0 || string || escape) - { - location->message = "Unbalanced function parameter list."; - return false; - } - - if (!btp_skip_char(&local_input, ')')) - { - location->message = "Expected ')' to close the function parameter list."; - return false; - } - location->column += 1; - - *input = local_input; - return true; -} - -bool -btp_frame_parse_function_call(char **input, - char **function_name, - char **function_type, - struct btp_location *location) -{ - char *local_input = *input; - char *name = NULL, *type = NULL; - if (!btp_frame_parse_function_name(&local_input, - &name, - &type, - location)) - { - /* The location message is set by the function returning - * false, no need to update it here. */ - return false; - } - - int line, column; - if (0 == btp_skip_char_span_location(&local_input, - " \n", - &line, - &column)) - { - free(name); - free(type); - location->message = "Expected a space or newline after the function name."; - return false; - } - btp_location_add(location, line, column); - - if (!btp_frame_skip_function_args(&local_input, location)) - { - free(name); - free(type); - /* The location message is set by the function returning - * false, no need to update it here. */ - return false; - } - - *function_name = name; - *function_type = type; - *input = local_input; - return true; -} - -bool -btp_frame_parse_address_in_function(char **input, - uint64_t *address, - char **function_name, - char **function_type, - struct btp_location *location) -{ - char *local_input = *input; - - /* Read memory address in hexadecimal format. */ - int digits = btp_parse_hexadecimal_number(&local_input, address); - location->column += digits; - if (0 == digits) - { - location->message = "Hexadecimal number representing memory address expected."; - return false; - } - - /* Skip spaces. */ - int chars = btp_skip_char_sequence(&local_input, ' '); - location->column += chars; - if (0 == chars) - { - location->message = "Space expected after memory address."; - return false; - } - - /* Skip keyword "in". */ - chars = btp_skip_string(&local_input, "in"); - location->column += chars; - if (0 == chars) - { - location->message = "Keyword \"in\" expected after memory address."; - return false; - } - - /* Skip spaces. */ - chars = btp_skip_char_sequence(&local_input, ' '); - location->column += chars; - if (0 == chars) - { - location->message = "Space expected after 'in'."; - return false; - } - - /* C++ specific case for "0xfafa in vtable for function ()" */ - chars = btp_skip_string(&local_input, "vtable"); - location->column += chars; - if (0 < chars) - { - chars = btp_skip_char_sequence(&local_input, ' '); - location->column += chars; - if (0 == chars) - { - location->message = "Space expected after 'vtable'."; - return false; - } - - chars = btp_skip_string(&local_input, "for"); - location->column += chars; - if (0 == chars) - { - location->message = "Keyword \"for\" expected."; - return false; - } - - chars = btp_skip_char_sequence(&local_input, ' '); - location->column += chars; - if (0 == chars) - { - location->message = "Space expected after 'for'."; - return false; - } - } - - if (!btp_frame_parse_function_call(&local_input, - function_name, - function_type, - location)) - { - /* Do not update location here, it has been modified by the - called function. */ - return false; - } - - *input = local_input; - return true; -} - -bool -btp_frame_parse_file_location(char **input, - char **file, - unsigned *fileline, - struct btp_location *location) -{ - char *local_input = *input; - int line, column; - if (0 == btp_skip_char_span_location(&local_input, " \n", &line, &column)) - { - location->message = "Expected a space or a newline."; - return false; - } - btp_location_add(location, line, column); - - int chars = btp_skip_string(&local_input, "at"); - if (0 == chars) - { - chars = btp_skip_string(&local_input, "from"); - if (0 == chars) - { - location->message = "Expected 'at' or 'from'."; - return false; - } - } - location->column += chars; - - int spaces = btp_skip_char_sequence(&local_input, ' '); - location->column += spaces; - if (0 == spaces) - { - location->message = "Expected a space before file location."; - return false; - } - - char *file_name; - chars = btp_parse_char_span(&local_input, BTP_alnum "_/\\+.-", &file_name); - location->column += chars; - if (0 == chars) - { - location->message = "Expected a file name."; - return false; - } - - if (btp_skip_char(&local_input, ':')) - { - location->column += 1; - int digits = btp_parse_unsigned_integer(&local_input, fileline); - location->column += digits; - if (0 == digits) - { - free(file_name); - location->message = "Expected a line number."; - return false; - } - } - else - *fileline = -1; - - *file = file_name; - *input = local_input; - return true; -} - -struct btp_frame * -btp_frame_parse_header(char **input, - struct btp_location *location) -{ - char *local_input = *input; - struct btp_frame *imframe = btp_frame_new(); /* im - intermediate */ - int chars = btp_frame_parse_frame_start(&local_input, - &imframe->number); - - location->column += chars; - if (0 == chars) - { - location->message = "Frame start sequence expected."; - btp_frame_free(imframe); - return NULL; - } - - struct btp_location internal_location; - btp_location_init(&internal_location); - if (btp_frame_parse_address_in_function(&local_input, - &imframe->address, - &imframe->function_name, - &imframe->function_type, - &internal_location)) - { - btp_location_add(location, - internal_location.line, - internal_location.column); - - /* Optional section " from file.c:65" */ - /* Optional section " at file.c:65" */ - btp_location_init(&internal_location); - if (btp_frame_parse_file_location(&local_input, - &imframe->source_file, - &imframe->source_line, - &internal_location)) - { - btp_location_add(location, - internal_location.line, - internal_location.column); - } - } - else - { - btp_location_init(&internal_location); - if (btp_frame_parse_function_call(&local_input, - &imframe->function_name, - &imframe->function_type, - &internal_location)) - { - btp_location_add(location, - internal_location.line, - internal_location.column); - - /* Mandatory section " at file.c:65" */ - btp_location_init(&internal_location); - if (!btp_frame_parse_file_location(&local_input, - &imframe->source_file, - &imframe->source_line, - &internal_location)) - { - location->message = "Function call in the frame header " - "misses mandatory \"at file.c:xy\" section"; - btp_frame_free(imframe); - return NULL; - } - - btp_location_add(location, - internal_location.line, - internal_location.column); - } - else - { - int chars = btp_skip_string(&local_input, "<signal handler called>"); - if (0 < chars) - { - location->column += chars; - imframe->signal_handler_called = true; - } - else - { - location->message = "Frame header variant not recognized."; - btp_frame_free(imframe); - return NULL; - } - } - } - - *input = local_input; - return imframe; -} diff --git a/src/btparser/frame.h b/src/btparser/frame.h deleted file mode 100644 index 966dd5d2..00000000 --- a/src/btparser/frame.h +++ /dev/null @@ -1,470 +0,0 @@ -/* - frame.h - - Copyright (C) 2010 Red Hat, 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. -*/ -#ifndef BTPARSER_FRAME_H -#define BTPARSER_FRAME_H - -#include <stdbool.h> -#include <stdint.h> - -#ifdef __cplusplus -extern "C" { -#endif - -struct strbuf; -struct btp_location; - -/** - * A frame representing a function call or a signal handler on a call - * stack of a thread. - */ -struct btp_frame -{ - /** - * A function name or NULL. If it's NULL, signal_handler_called is - * true. - */ - char *function_name; - /** - * A function type, or NULL if it isn't present. - */ - char *function_type; - /** - * A frame number in a thread. It does not necessarily show the - * actual position in the thread, as this number is set by the - * parser and never updated. - */ - unsigned number; - /** - * The name of the source file containing the function definition, - * or the name of the binary file (.so) with the binary code of - * the function, or NULL. - */ - char *source_file; - /** - * A line number in the source file, determining the position of - * the function definition, or -1 when unknown. - */ - unsigned source_line; - /** - * Signal handler was called on this frame. - */ - bool signal_handler_called; - /** - * The function address in the computer memory, or -1 when the - * address is unknown. - */ - uint64_t address; - /** - * A sibling frame residing below this one, or NULL if this is the - * last frame in the parent thread. - */ - struct btp_frame *next; -}; - -/** - * Creates and initializes a new frame structure. - * @returns - * It never returns NULL. The returned pointer must be released by - * calling the function btp_frame_free(). - */ -struct btp_frame * -btp_frame_new(); - -/** - * Initializes all members of the frame structure to their default - * values. No memory is released, members are simply overwritten. - * This is useful for initializing a frame structure placed on the - * stack. - */ -void -btp_frame_init(struct btp_frame *frame); - -/** - * Releases the memory held by the frame. The frame siblings are not - * released. - * @param frame - * If the frame is NULL, no operation is performed. - */ -void -btp_frame_free(struct btp_frame *frame); - -/** - * Creates a duplicate of the frame. - * @param frame - * It must be non-NULL pointer. The frame is not modified by calling - * this function. - * @param siblings - * Whether to duplicate also siblings referenced by frame->next. If - * false, frame->next is not duplicated for the new frame, but it is - * set to NULL. - * @returns - * This function never returns NULL. If the returned duplicate is not - * shallow, it must be released by calling the function - * btp_frame_free(). - */ -struct btp_frame * -btp_frame_dup(struct btp_frame *frame, - bool siblings); - -/** - * Checks whether the frame represents a call of function with certain - * function name. - */ -bool -btp_frame_calls_func(struct btp_frame *frame, - const char *function_name); - -/** - * Checks whether the frame represents a call of function with certain - * function name, which resides in a source file. - * @param source_file - * The frame's source_file is searched for the source_file as a - * substring. - */ -bool -btp_frame_calls_func_in_file(struct btp_frame *frame, - const char *function_name, - const char *source_file); - -/** - * Checks whether the frame represents a call of function with certain - * function name, which resides in one of the source files. - * @param source_file0 - * The frame's source_file is searched for the source_file0 as a - * substring. - * @returns - * True if the frame corresponds to a function with function_name, - * residing in the source_file0, or source_file1. - */ -bool -btp_frame_calls_func_in_file2(struct btp_frame *frame, - const char *function_name, - const char *source_file0, - const char *source_file1); - -/** - * Checks whether the frame represents a call of function with certain - * function name, which resides in one of the source files. - * @param source_file0 - * The frame's source_file is searched for the source_file0 as a - * substring. - * @returns - * True if the frame corresponds to a function with function_name, - * residing in the source_file0, source_file1, or source_file2. - */ -bool -btp_frame_calls_func_in_file3(struct btp_frame *frame, - const char *function_name, - const char *source_file0, - const char *source_file1, - const char *source_file2); - -/** - * Checks whether the frame represents a call of function with certain - * function name, which resides in one of the source files. - * @param source_file0 - * The frame's source_file is searched for the source_file0 as a - * substring. - * @returns - * True if the frame corresponds to a function with function_name, - * residing in the source_file0, source_file1, source_file2, or - * source_file3. - */ -bool -btp_frame_calls_func_in_file4(struct btp_frame *frame, - const char *function_name, - const char *source_file0, - const char *source_file1, - const char *source_file2, - const char *source_file3); - -/** - * Compares two frames. - * @param f1 - * It must be non-NULL pointer. It's not modified by calling this - * function. - * @param f2 - * It must be non-NULL pointer. It's not modified by calling this - * function. - * @param compare_number - * Indicates whether to include the frame numbers in the - * comparsion. If set to false, the frame numbers are ignored. - * @returns - * Returns 0 if the frames are same. Returns negative number if f1 is - * found to be 'less' than f2. Returns positive number if f1 is found - * to be 'greater' than f2. - */ -int -btp_frame_cmp(struct btp_frame *f1, - struct btp_frame *f2, - bool compare_number); - -/** - * Puts the frame 'b' to the bottom of the stack 'a'. In other words, - * it finds the last sibling of the frame 'a', and appends the frame - * 'b' to this last sibling. - */ -void -btp_frame_add_sibling(struct btp_frame *a, - struct btp_frame *b); - -/** - * Appends the textual representation of the frame to the string - * buffer. - * @param frame - * It must be non-NULL pointer. It's not modified by calling this - * function. - */ -void -btp_frame_append_to_str(struct btp_frame *frame, - struct strbuf *str, - bool verbose); - -/** - * If the input contains a complete frame, this function parses the - * frame text, returns it in a structure, and moves the input pointer - * after the frame. If the input does not contain proper, complete - * frame, the function does not modify input and returns NULL. - * @returns - * Allocated pointer with a frame structure. The pointer should be - * released by btp_frame_free(). - * @param location - * The caller must provide a pointer to an instance of btp_location - * here. When this function returns NULL, the structure will contain - * the error line, column, and message. The line and column members - * of the location are gradually increased as the parser handles the - * input, so the location should be initialized before calling this - * function to get reasonable values. - */ -struct btp_frame * -btp_frame_parse(char **input, - struct btp_location *location); - -/** - * If the input contains a proper frame start section, parse the frame - * number, and move the input pointer after this section. Otherwise do - * not modify input. - * @returns - * The number of characters parsed from input. 0 if the input does not - * contain a frame start. - * @code - * "#1 " - * "#255 " - * @endcode - */ -int -btp_frame_parse_frame_start(char **input, unsigned *number); - -/** - * Parses C++ operator on input. - * Supports even 'operator new[]' and 'operator delete[]'. - * @param target - * The parsed operator name is appened to the string buffer provided, - * if an operator is found. Otherwise the string buffer is not - * changed. - * @returns - * The number of characters parsed from input. 0 if the input does not - * contain operator. - */ -int -btp_frame_parseadd_operator(char **input, - struct strbuf *target); - -/** - * Parses a part of function name from the input. - * @param target - * Pointer to a non-allocated pointer. This function will set - * the pointer to newly allocated memory containing the name chunk, - * if it returns positive, nonzero value. - * @returns - * The number of characters parsed from input. 0 if the input does not - * contain a part of function name. - */ -int -btp_frame_parse_function_name_chunk(char **input, - bool space_allowed, - char **target); - -/** - * If the input buffer contains part of function name containing braces, - * for example "(anonymous namespace)", parse it, append the contents - * to target and move input after the braces. - * Otherwise do not modify niether the input nor the target. - * @returns - * The number of characters parsed from input. 0 if the input does not - * contain a braced part of function name. - */ -int -btp_frame_parse_function_name_braces(char **input, - char **target); - -/** - * @returns - * The number of characters parsed from input. 0 if the input does not - * contain a template part of function name. - */ -int -btp_frame_parse_function_name_template(char **input, - char **target); - -/** - * Parses the function name, which is a part of the frame header, from - * the input. If the frame header contains also the function type, - * it's also parsed. - * @param function_name - * A pointer pointing to an uninitialized pointer. This function - * allocates a string and sets the pointer to it if it parses the - * function name from the input successfully. The memory returned - * this way must be released by the caller using the function free(). - * If this function returns true, this pointer is guaranteed to be - * non-NULL. - * @param location - * The caller must provide a pointer to an instance of btp_location - * here. The line and column members of the location are gradually - * increased as the parser handles the input, so the location should - * be initialized before calling this function to get reasonable - * values. When this function returns false (an error occurred), the - * structure will contain the error line, column, and message. - * @returns - * True if the input stream contained a function name, which has been - * parsed. False otherwise. - */ -bool -btp_frame_parse_function_name(char **input, - char **function_name, - char **function_type, - struct btp_location *location); - -/** - * Skips function arguments which are a part of the frame header, in - * the input stream. - * @param location - * The caller must provide a pointer to an instance of btp_location - * here. The line and column members of the location are gradually - * increased as the parser handles the input, so the location should - * be initialized before calling this function to get reasonable - * values. When this function returns false (an error occurred), the - * structure will contain the error line, column, and message. - */ -bool -btp_frame_skip_function_args(char **input, - struct btp_location *location); - -/** - * If the input contains proper function call, parse the function - * name and store it to result, move the input pointer after whole - * function call, and return true. Otherwise do not modify the input - * and return false. - * - * If this function returns true, the caller is responsible to free - * the the function_name. - * @todo - * Parse and return the function call arguments. - * @param location - * The caller must provide a pointer to an instance of btp_location - * here. The line and column members of the location are gradually - * increased as the parser handles the input, so the location should - * be initialized before calling this function to get reasonable - * values. When this function returns false (an error occurred), the - * structure will contain the error line, column, and message. - */ -bool -btp_frame_parse_function_call(char **input, - char **function_name, - char **function_type, - struct btp_location *location); - -/** - * If the input contains address and function call, parse them, move - * the input pointer after this sequence, and return true. - * Otherwise do not modify the input and return false. - * - * If this function returns true, the caller is responsible to free - * the parameter function. - * - * @code - * 0x000000322160e7fd in fsync () - * 0x000000322222987a in write_to_temp_file ( - * filename=0x18971b0 "/home/jfclere/.recently-used.xbel", - * contents=<value optimized out>, length=29917, error=0x7fff3cbe4110) - * @endcode - * @param location - * The caller must provide a pointer to an instance of btp_location - * here. The line and column members of the location are gradually - * increased as the parser handles the input, so the location should - * be initialized before calling this function to get reasonable - * values. When this function returns false (an error occurred), the - * structure will contain the error line, column, and message. - */ -bool -btp_frame_parse_address_in_function(char **input, - uint64_t *address, - char **function_name, - char **function_type, - struct btp_location *location); - -/** - * If the input contains sequence "from path/to/file:fileline" or "at - * path/to/file:fileline", parse it, move the input pointer after this - * sequence and return true. Otherwise do not modify the input and - * return false. - * - * The ':' followed by line number is optional. If it is not present, - * the fileline is set to -1. - * @param location - * The caller must provide a pointer to an instance of btp_location - * here. The line and column members of the location are gradually - * increased as the parser handles the input, so the location should - * be initialized before calling this function to get reasonable - * values. When this function returns false (an error occurred), the - * structure will contain the error line, column, and message. - */ -bool -btp_frame_parse_file_location(char **input, - char **file, - unsigned *fileline, - struct btp_location *location); - -/** - * If the input contains proper frame header, this function - * parses the frame header text, moves the input pointer - * after the frame header, and returns a frame struct. - * If the input does not contain proper frame header, this function - * returns NULL and does not modify input. - * @param location - * The caller must provide a pointer to an instance of btp_location - * here. The line and column members of the location are gradually - * increased as the parser handles the input, so the location should - * be initialized before calling this function to get reasonable - * values. When this function returns false (an error occurred), the - * structure will contain the error line, column, and message. - * @returns - * Newly created frame struct or NULL. The returned frame struct - * should be released by btp_frame_free(). - */ -struct btp_frame * -btp_frame_parse_header(char **input, - struct btp_location *location); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/src/btparser/location.c b/src/btparser/location.c deleted file mode 100644 index ade706f2..00000000 --- a/src/btparser/location.c +++ /dev/null @@ -1,78 +0,0 @@ -/* - location.c - - Copyright (C) 2010 Red Hat, 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 "location.h" -#include <stdlib.h> /* contains NULL */ - -void -btp_location_init(struct btp_location *location) -{ - location->line = 1; - location->column = 0; - location->message = NULL; -} - -void -btp_location_add(struct btp_location *location, - int add_line, - int add_column) -{ - btp_location_add_ext(&location->line, - &location->column, - add_line, - add_column); -} - -void -btp_location_add_ext(int *line, - int *column, - int add_line, - int add_column) -{ - if (add_line > 1) - { - *line += add_line - 1; - *column = add_column; - } - else - *column += add_column; -} - -void -btp_location_eat_char(struct btp_location *location, - char c) -{ - btp_location_eat_char_ext(&location->line, - &location->column, - c); -} - -void -btp_location_eat_char_ext(int *line, - int *column, - char c) -{ - if (c == '\n') - { - *line += 1; - *column = 0; - } - else - *column += 1; -} diff --git a/src/btparser/location.h b/src/btparser/location.h deleted file mode 100644 index 0d620205..00000000 --- a/src/btparser/location.h +++ /dev/null @@ -1,118 +0,0 @@ -/* - location.h - - Copyright (C) 2010 Red Hat, 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. -*/ -#ifndef BTPARSER_LOCATION_H -#define BTPARSER_LOCATION_H - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * A location in the backtrace file with an attached message. - * It's used for error reporting: the line and the column points to - * the place where a parser error occurred, and the message explains - * what the parser expected and didn't find on that place. - */ -struct btp_location -{ - /** Starts from 1. */ - int line; - /** Starts from 0. */ - int column; - /** - * Error message related to the line and column. Do not release - * the memory this pointer points to. - */ - const char *message; -}; - -/** - * Initializes all members of the location struct to their default - * values. No memory is allocated or released by this function. - */ -void -btp_location_init(struct btp_location *location); - -/** - * Adds a line and a column to specific location. - * @note - * If the line is not 1 (meaning the first line), the column in the - * location structure is overwritten by the provided add_column value. - * Otherwise the add_column value is added to the column member of the - * location structure. - * @param location - * The structure to be modified. It must be a valid pointer. - * @param add_line - * Starts from 1. It means that if add_line is 1, the line member of the - * location structure is not changed. - * @param add_column - * Starts from 0. - */ -void -btp_location_add(struct btp_location *location, - int add_line, - int add_column); - -/** - * Adds a line column pair to another line column pair. - * @note - * If the add_line is not 1 (meaning the frist line), the column is - * overwritten by the provided add_column value. Otherwise the - * add_column value is added to the column. - * @param add_line - * Starts from 1. It means that if add_line is 1, the line is not - * changed. - * @param add_column - * Starts from 0. - */ -void -btp_location_add_ext(int *line, - int *column, - int add_line, - int add_column); - -/** - * Updates the line and column of the location by moving "after" the - * char c. If c is a newline character, the line number is increased - * and the column is set to 0. Otherwise the column is increased by 1. - */ -void -btp_location_eat_char(struct btp_location *location, - char c); - -/** - * Updates the line and the column by moving "after" the char c. If c - * is a newline character, the line number is increased and the column - * is set to 0. Otherwise the column is increased. - * @param line - * Must be a valid pointer. - * @param column - * Must be a valid pointer. - */ -void -btp_location_eat_char_ext(int *line, - int *column, - char c); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/src/btparser/normalize.c b/src/btparser/normalize.c deleted file mode 100644 index 64ccada7..00000000 --- a/src/btparser/normalize.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - normalize.c - - Copyright (C) 2010 Red Hat, 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 "normalize.h" -#include "frame.h" -#include "thread.h" -#include "backtrace.h" -#include <string.h> - -void -btp_normalize_thread(struct btp_thread *thread) -{ - btp_normalize_dbus_thread(thread); - btp_normalize_gdk_thread(thread); - btp_normalize_glib_thread(thread); - btp_normalize_glibc_thread(thread); - btp_normalize_libstdcpp_thread(thread); - btp_normalize_linux_thread(thread); - btp_normalize_xorg_thread(thread); - - /* If the first frame has address 0x0000 and its name is '??', it - * is a dereferenced null, and we remove it. This frame is not - * really invalid, and it affects backtrace quality rating. See - * Red Hat Bugzilla bug #639038. - * @code - * #0 0x0000000000000000 in ?? () - * No symbol table info available. - * #1 0x0000000000422648 in main (argc=1, argv=0x7fffa57cf0d8) at totem.c:242 - * error = 0x0 - * totem = 0xdee070 [TotemObject] - * @endcode - */ - if (thread->frames && - thread->frames->address == 0x0000 && - thread->frames->function_name && - 0 == strcmp(thread->frames->function_name, "??")) - { - btp_thread_remove_frame(thread, thread->frames); - } - - /* If the last frame has address 0x0000 and its name is '??', - * remove it. This frame is not really invalid, and it affects - * backtrace quality rating. See Red Hat Bugzilla bug #592523. - * @code - * #2 0x00007f4dcebbd62d in clone () - * at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 - * No locals. - * #3 0x0000000000000000 in ?? () - * @endcode - */ - struct btp_frame *last = thread->frames; - while (last && last->next) - last = last->next; - if (last && - last->address == 0x0000 && - last->function_name && - 0 == strcmp(last->function_name, "??")) - { - btp_thread_remove_frame(thread, last); - } -} - -void -btp_normalize_backtrace(struct btp_backtrace *backtrace) -{ - struct btp_thread *thread = backtrace->threads; - while (thread) - { - btp_normalize_thread(thread); - thread = thread->next; - } -} diff --git a/src/btparser/normalize.h b/src/btparser/normalize.h deleted file mode 100644 index 35fd2836..00000000 --- a/src/btparser/normalize.h +++ /dev/null @@ -1,74 +0,0 @@ -/* - normalize.h - - Copyright (C) 2010 Red Hat, 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. -*/ -#ifndef BTPARSER_NORMALIZE_H -#define BTPARSER_NORMALIZE_H - -#ifdef __cplusplus -extern "C" { -#endif - -struct btp_thread; -struct btp_backtrace; - -void -btp_normalize_thread(struct btp_thread *thread); - -void -btp_normalize_backtrace(struct btp_backtrace *backtrace); - -/** - */ -void -btp_normalize_dbus_thread(struct btp_thread *thread); - -void -btp_normalize_gdk_thread(struct btp_thread *thread); - -void -btp_normalize_glib_thread(struct btp_thread *thread); - -/** - * Checks whether the thread it contains some function used to exit - * application. If a frame with the function is found, it is - * returned. If there are multiple frames with abort function, the - * lowest one is returned. - * @returns - * Returns NULL if such a frame is not found. - */ -struct btp_frame * -btp_glibc_thread_find_exit_frame(struct btp_thread *thread); - -void -btp_normalize_glibc_thread(struct btp_thread *thread); - -void -btp_normalize_libstdcpp_thread(struct btp_thread *thread); - -void -btp_normalize_linux_thread(struct btp_thread *thread); - -void -btp_normalize_xorg_thread(struct btp_thread *thread); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/src/btparser/normalize_dbus.c b/src/btparser/normalize_dbus.c deleted file mode 100644 index d3d6a13a..00000000 --- a/src/btparser/normalize_dbus.c +++ /dev/null @@ -1,44 +0,0 @@ -/* - normalize_dbus.c - - Copyright (C) 2010 Red Hat, 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 "normalize.h" -#include "frame.h" -#include "thread.h" -#include <stdbool.h> - -void -btp_normalize_dbus_thread(struct btp_thread *thread) -{ - struct btp_frame *frame = thread->frames; - while (frame) - { - struct btp_frame *next_frame = frame->next; - - /* Remove frames which are not a cause of the crash. */ - bool removable = - btp_frame_calls_func_in_file(frame, "gerror_to_dbus_error_message", "dbus-gobject.c") || - btp_frame_calls_func_in_file(frame, "dbus_g_method_return_error", "dbus-gobject.c"); - if (removable) - { - btp_thread_remove_frame(thread, frame); - } - - frame = next_frame; - } -} diff --git a/src/btparser/normalize_gdk.c b/src/btparser/normalize_gdk.c deleted file mode 100644 index e9c4ef6a..00000000 --- a/src/btparser/normalize_gdk.c +++ /dev/null @@ -1,44 +0,0 @@ -/* - normalize_gdk.c - - Copyright (C) 2010 Red Hat, 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 "normalize.h" -#include "frame.h" -#include "thread.h" -#include <stdbool.h> - -void -btp_normalize_gdk_thread(struct btp_thread *thread) -{ - struct btp_frame *frame = thread->frames; - while (frame) - { - struct btp_frame *next_frame = frame->next; - - /* Remove frames which are not a cause of the crash. */ - bool removable = - btp_frame_calls_func_in_file(frame, "gdk_x_error", "gdkmain-x11.c"); - - if (removable) - { - btp_thread_remove_frame(thread, frame); - } - - frame = next_frame; - } -} diff --git a/src/btparser/normalize_glib.c b/src/btparser/normalize_glib.c deleted file mode 100644 index b5c12b60..00000000 --- a/src/btparser/normalize_glib.c +++ /dev/null @@ -1,60 +0,0 @@ -/* - normalize_glib.c - - Copyright (C) 2010 Red Hat, 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 "normalize.h" -#include "frame.h" -#include "thread.h" -#include "utils.h" -#include <stdbool.h> -#include <string.h> - -void -btp_normalize_glib_thread(struct btp_thread *thread) -{ - struct btp_frame *frame = thread->frames; - while (frame) - { - struct btp_frame *next_frame = frame->next; - - /* Normalize frame names. */ - if (frame->function_name && - 0 == strncmp(frame->function_name, "IA__g_", strlen("IA__g_"))) - { - /* Remove the IA__ prefix. The strcpy function cannot be - * used for that because the source and destination - * pointers overlap. */ - char *p = frame->function_name; - while ((*p = p[4]) != '\0') - ++p; - } - - /* Remove frames which are not a cause of the crash. */ - bool removable = - btp_frame_calls_func_in_file2(frame, "g_log", "gmessages.c", "libglib") || - btp_frame_calls_func_in_file2(frame, "g_logv", "gmessages.c", "libglib") || - btp_frame_calls_func_in_file2(frame, "g_assertion_message", "gtestutils.c", "libglib") || - btp_frame_calls_func_in_file2(frame, "g_assertion_message_expr", "gtestutils.c", "libglib"); - if (removable) - { - btp_thread_remove_frame(thread, frame); - } - - frame = next_frame; - } -} diff --git a/src/btparser/normalize_glibc.c b/src/btparser/normalize_glibc.c deleted file mode 100644 index 3d0bca2b..00000000 --- a/src/btparser/normalize_glibc.c +++ /dev/null @@ -1,131 +0,0 @@ -/* - normalize_glibc.c - - Copyright (C) 2010 Red Hat, 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 "normalize.h" -#include "frame.h" -#include "thread.h" -#include "utils.h" -#include <string.h> -#include <stdlib.h> -#include <assert.h> - -struct btp_frame * -btp_glibc_thread_find_exit_frame(struct btp_thread *thread) -{ - struct btp_frame *frame = thread->frames; - struct btp_frame *result = NULL; - while (frame) - { - bool is_exit_frame = - btp_frame_calls_func_in_file(frame, "__run_exit_handlers", "exit.c") || - btp_frame_calls_func_in_file4(frame, "raise", "pt-raise.c", "libc.so", "libc-", "libpthread.so") || - btp_frame_calls_func_in_file(frame, "exit", "exit.c") || - btp_frame_calls_func_in_file3(frame, "abort", "abort.c", "libc.so", "libc-") || - /* Terminates a function in case of buffer overflow. */ - btp_frame_calls_func_in_file2(frame, "__chk_fail", "chk_fail.c", "libc.so"); - - if (is_exit_frame) - result = frame; - - frame = frame->next; - } - - return result; -} - - -void -btp_normalize_glibc_thread(struct btp_thread *thread) -{ - /* Find the exit frame and remove everything above it. */ - struct btp_frame *exit_frame = btp_glibc_thread_find_exit_frame(thread); - if (exit_frame) - { - bool success = btp_thread_remove_frames_above(thread, exit_frame); - assert(success); /* if this fails, some code become broken */ - success = btp_thread_remove_frame(thread, exit_frame); - assert(success); /* if this fails, some code become broken */ - } - - /* Standard function filtering loop. */ - struct btp_frame *frame = thread->frames; - while (frame) - { - struct btp_frame *next_frame = frame->next; - - /* Normalize frame names. */ -#define NORMALIZE_ARCH_SPECIFIC(func) \ - if (btp_frame_calls_func_in_file3(frame, "__" func "_sse2", func, "/sysdeps/", "libc.so") || \ - btp_frame_calls_func_in_file3(frame, "__" func "_sse2_bsf", func, "/sysdeps/", "libc.so") || \ - btp_frame_calls_func_in_file3(frame, "__" func "_ssse3", func, "/sysdeps/", "libc.so") /* ssse3, not sse3! */ || \ - btp_frame_calls_func_in_file3(frame, "__" func "_ssse3_rep", func, "/sysdeps/", "libc.so") || \ - btp_frame_calls_func_in_file3(frame, "__" func "_sse42", func, "/sysdeps/", "libc.so") || \ - btp_frame_calls_func_in_file3(frame, "__" func "_ia32", func, "/sysdeps", "libc.so")) \ - { \ - strcpy(frame->function_name, func); \ - } - - NORMALIZE_ARCH_SPECIFIC("memchr"); - NORMALIZE_ARCH_SPECIFIC("memcmp"); - NORMALIZE_ARCH_SPECIFIC("memcpy"); - NORMALIZE_ARCH_SPECIFIC("memmove"); - NORMALIZE_ARCH_SPECIFIC("memset"); - NORMALIZE_ARCH_SPECIFIC("rawmemchr"); - NORMALIZE_ARCH_SPECIFIC("strcasecmp"); - NORMALIZE_ARCH_SPECIFIC("strcasecmp_l"); - NORMALIZE_ARCH_SPECIFIC("strcat"); - NORMALIZE_ARCH_SPECIFIC("strchr"); - NORMALIZE_ARCH_SPECIFIC("strchrnul"); - NORMALIZE_ARCH_SPECIFIC("strcmp"); - NORMALIZE_ARCH_SPECIFIC("strcpy"); - NORMALIZE_ARCH_SPECIFIC("strcspn"); - NORMALIZE_ARCH_SPECIFIC("strlen"); - NORMALIZE_ARCH_SPECIFIC("strncmp"); - NORMALIZE_ARCH_SPECIFIC("strncpy"); - NORMALIZE_ARCH_SPECIFIC("strpbrk"); - NORMALIZE_ARCH_SPECIFIC("strrchr"); - NORMALIZE_ARCH_SPECIFIC("strspn"); - NORMALIZE_ARCH_SPECIFIC("strstr"); - NORMALIZE_ARCH_SPECIFIC("strtok"); - - /* Remove frames which are not a cause of the crash. */ - bool removable = - btp_frame_calls_func(frame, "__assert_fail") || - btp_frame_calls_func(frame, "__strcat_chk") || - btp_frame_calls_func(frame, "__strcpy_chk") || - btp_frame_calls_func(frame, "__strncpy_chk") || - btp_frame_calls_func(frame, "__vsnprintf_chk") || - btp_frame_calls_func(frame, "___vsnprintf_chk") || - btp_frame_calls_func(frame, "__snprintf_chk") || - btp_frame_calls_func(frame, "___snprintf_chk") || - btp_frame_calls_func(frame, "__vasprintf_chk") || - btp_frame_calls_func_in_file(frame, "malloc_consolidate", "malloc.c") || - btp_frame_calls_func_in_file(frame, "_int_malloc", "malloc.c") || - btp_frame_calls_func_in_file(frame, "__libc_calloc", "malloc.c"); - if (removable) - { - bool success = btp_thread_remove_frames_above(thread, frame); - assert(success); - success = btp_thread_remove_frame(thread, frame); - assert(success); - } - - frame = next_frame; - } -} diff --git a/src/btparser/normalize_libstdcpp.c b/src/btparser/normalize_libstdcpp.c deleted file mode 100644 index 1f833ded..00000000 --- a/src/btparser/normalize_libstdcpp.c +++ /dev/null @@ -1,46 +0,0 @@ -/* - normalize_libstdcpp.c - - Copyright (C) 2010 Red Hat, 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 "normalize.h" -#include "frame.h" -#include "thread.h" -#include <stdbool.h> - -void -btp_normalize_libstdcpp_thread(struct btp_thread *thread) -{ - struct btp_frame *frame = thread->frames; - while (frame) - { - struct btp_frame *next_frame = frame->next; - - /* Remove frames which are not a cause of the crash. */ - bool removable = - btp_frame_calls_func_in_file(frame, "__gnu_cxx::__verbose_terminate_handler", "vterminate.cc") || - btp_frame_calls_func_in_file(frame, "__cxxabiv1::__terminate", "eh_terminate.cc") || - btp_frame_calls_func_in_file(frame, "std::terminate", "eh_terminate.cc") || - btp_frame_calls_func_in_file(frame, "__cxxabiv1::__cxa_throw", "eh_throw.cc"); - if (removable) - { - btp_thread_remove_frame(thread, frame); - } - - frame = next_frame; - } -} diff --git a/src/btparser/normalize_linux.c b/src/btparser/normalize_linux.c deleted file mode 100644 index 8df9f9c2..00000000 --- a/src/btparser/normalize_linux.c +++ /dev/null @@ -1,41 +0,0 @@ -/* - normalize_linux.c - - Copyright (C) 2010 Red Hat, 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 "normalize.h" -#include "utils.h" -#include "frame.h" -#include "thread.h" -#include <stdbool.h> - -void -btp_normalize_linux_thread(struct btp_thread *thread) -{ - struct btp_frame *frame = thread->frames; - while (frame) - { - struct btp_frame *next_frame = frame->next; - - /* Remove frames which are not a cause of the crash. */ - bool removable = btp_frame_calls_func(frame, "__kernel_vsyscall"); - if (removable) - btp_thread_remove_frame(thread, frame); - - frame = next_frame; - } -} diff --git a/src/btparser/normalize_xorg.c b/src/btparser/normalize_xorg.c deleted file mode 100644 index 11e8d624..00000000 --- a/src/btparser/normalize_xorg.c +++ /dev/null @@ -1,46 +0,0 @@ -/* - normalize_xorg.c - - Copyright (C) 2010 Red Hat, 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 "normalize.h" -#include "frame.h" -#include "thread.h" -#include <stdbool.h> - -void -btp_normalize_xorg_thread(struct btp_thread *thread) -{ - struct btp_frame *frame = thread->frames; - while (frame) - { - struct btp_frame *next_frame = frame->next; - - /* Remove frames which are not a cause of the crash. */ - bool removable = - btp_frame_calls_func_in_file(frame, "_XReply", "xcb_io.c") || - btp_frame_calls_func_in_file(frame, "_XError", "XlibInt.c") || - btp_frame_calls_func_in_file(frame, "XSync", "Sync.c") || - btp_frame_calls_func_in_file(frame, "process_responses", "xcb_io.c"); - if (removable) - { - btp_thread_remove_frame(thread, frame); - } - - frame = next_frame; - } -} diff --git a/src/btparser/thread.c b/src/btparser/thread.c deleted file mode 100644 index 05f154d6..00000000 --- a/src/btparser/thread.c +++ /dev/null @@ -1,399 +0,0 @@ -/* - thread.c - - Copyright (C) 2010 Red Hat, 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 "thread.h" -#include "frame.h" -#include "strbuf.h" -#include "utils.h" -#include "location.h" -#include <stdlib.h> -#include <string.h> -#include <assert.h> - -struct btp_thread * -btp_thread_new() -{ - struct btp_thread *thread = btp_malloc(sizeof(struct btp_thread)); - btp_thread_init(thread); - return thread; -} - -void -btp_thread_init(struct btp_thread *thread) -{ - thread->number = -1; - thread->frames = NULL; - thread->next = NULL; -} - -void -btp_thread_free(struct btp_thread *thread) -{ - if (!thread) - return; - - while (thread->frames) - { - struct btp_frame *rm = thread->frames; - thread->frames = rm->next; - btp_frame_free(rm); - } - - free(thread); -} - -struct btp_thread * -btp_thread_dup(struct btp_thread *thread, bool siblings) -{ - struct btp_thread *result = btp_thread_new(); - memcpy(result, thread, sizeof(struct btp_thread)); - - /* Handle siblings. */ - if (siblings) - { - if (result->next) - result->next = btp_thread_dup(result->next, true); - } - else - result->next = NULL; /* Do not copy that. */ - - result->frames = btp_frame_dup(result->frames, true); - - return result; -} - -int -btp_thread_cmp(struct btp_thread *t1, struct btp_thread *t2) -{ - int number = t1->number - t2->number; - if (number != 0) - return number; - struct btp_frame *f1 = t1->frames, *f2 = t2->frames; - do { - if (f1 && !f2) - return 1; - else if (f2 && !f1) - return -1; - else if (f1 && f2) - { - int frames = btp_frame_cmp(f1, f2, true); - if (frames != 0) - return frames; - f1 = f1->next; - f2 = f2->next; - } - } while (f1 || f2); - - return 0; -} - -struct btp_thread * -btp_thread_add_sibling(struct btp_thread *a, struct btp_thread *b) -{ - struct btp_thread *aa = a; - while (aa->next) - aa = aa->next; - - aa->next = b; - return a; -} - -int -btp_thread_get_frame_count(struct btp_thread *thread) -{ - struct btp_frame *frame = thread->frames; - int count = 0; - while (frame) - { - frame = frame->next; - ++count; - } - return count; -} - -void -btp_thread_quality_counts(struct btp_thread *thread, - int *ok_count, - int *all_count) -{ - struct btp_frame *frame = thread->frames; - while (frame) - { - *all_count += 1; - if (frame->signal_handler_called || - (frame->function_name - && 0 != strcmp(frame->function_name, "??"))) - { - *ok_count += 1; - } - frame = frame->next; - } -} - -float -btp_thread_quality(struct btp_thread *thread) -{ - int ok_count = 0, all_count = 0; - btp_thread_quality_counts(thread, &ok_count, &all_count); - if (0 == all_count) - return 1; - return ok_count/(float)all_count; -} - -bool -btp_thread_remove_frame(struct btp_thread *thread, - struct btp_frame *frame) -{ - struct btp_frame *loop_frame = thread->frames, *prev_frame = NULL; - while (loop_frame) - { - if (loop_frame == frame) - { - if (prev_frame) - prev_frame->next = loop_frame->next; - else - thread->frames = loop_frame->next; - - btp_frame_free(loop_frame); - return true; - } - prev_frame = loop_frame; - loop_frame = loop_frame->next; - } - return false; -} - -bool -btp_thread_remove_frames_above(struct btp_thread *thread, - struct btp_frame *frame) -{ - /* Check that the frame is present in the thread. */ - struct btp_frame *loop_frame = thread->frames; - while (loop_frame) - { - if (loop_frame == frame) - break; - loop_frame = loop_frame->next; - } - - if (!loop_frame) - return false; - - /* Delete all the frames up to the frame. */ - while (thread->frames != frame) - { - loop_frame = thread->frames->next; - btp_frame_free(thread->frames); - thread->frames = loop_frame; - } - - return true; -} - -void -btp_thread_remove_frames_below_n(struct btp_thread *thread, - int n) -{ - assert(n >= 0); - - /* Skip some frames to get the required stack depth. */ - int i = n; - struct btp_frame *frame = thread->frames, *last_frame = NULL; - while (frame && i) - { - last_frame = frame; - frame = frame->next; - --i; - } - - /* Delete the remaining frames. */ - if (last_frame) - last_frame->next = NULL; - else - thread->frames = NULL; - - while (frame) - { - struct btp_frame *delete_frame = frame; - frame = frame->next; - btp_frame_free(delete_frame); - } -} - -void -btp_thread_append_to_str(struct btp_thread *thread, - struct strbuf *str, - bool verbose) -{ - int framecount = btp_thread_get_frame_count(thread); - if (verbose) - { - strbuf_append_strf(str, "Thread no. %d (%d frames)\n", - thread->number, framecount); - } - else - strbuf_append_str(str, "Thread\n"); - - struct btp_frame *frame = thread->frames; - while (frame) - { - btp_frame_append_to_str(frame, str, verbose); - frame = frame->next; - } -} - -struct btp_thread * -btp_thread_parse(char **input, - struct btp_location *location) -{ - char *local_input = *input; - - /* Read the Thread keyword, which is mandatory. */ - int chars = btp_skip_string(&local_input, "Thread"); - location->column += chars; - if (0 == chars) - { - location->message = "\"Thread\" header expected"; - return NULL; - } - - /* Skip spaces, at least one space is mandatory. */ - int spaces = btp_skip_char_sequence(&local_input, ' '); - location->column += spaces; - if (0 == spaces) - { - location->message = "Space expected after the \"Thread\" keyword."; - return NULL; - } - - /* Read thread number. */ - struct btp_thread *imthread = btp_thread_new(); - int digits = btp_parse_unsigned_integer(&local_input, &imthread->number); - location->column += digits; - if (0 == digits) - { - location->message = "Thread number expected."; - btp_thread_free(imthread); - return NULL; - } - - /* Skip spaces after the thread number and before parentheses. */ - spaces = btp_skip_char_sequence(&local_input, ' '); - location->column += spaces; - if (0 == spaces) - { - location->message = "Space expected after the thread number."; - btp_thread_free(imthread); - return NULL; - } - - /* Read the LWP section in parentheses, optional. */ - location->column += btp_thread_skip_lwp(&local_input); - - /* Read the Thread keyword in parentheses, optional. */ - chars = btp_skip_string(&local_input, "(Thread "); - location->column += chars; - if (0 != chars) - { - /* Read the thread identification number. It can be either in - * decimal or hexadecimal form. - * Examples: - * "Thread 10 (Thread 2476):" - * "Thread 8 (Thread 0xb07fdb70 (LWP 6357)):" - */ - digits = btp_skip_hexadecimal_number(&local_input); - if (0 == digits) - digits = btp_skip_unsigned_integer(&local_input); - location->column += digits; - if (0 == digits) - { - location->message = "The thread identification number expected."; - btp_thread_free(imthread); - return NULL; - } - - /* Handle the optional " (LWP [0-9]+)" section. */ - location->column += btp_skip_char_sequence(&local_input, ' '); - location->column += btp_thread_skip_lwp(&local_input); - - /* Read the end of the parenthesis. */ - if (!btp_skip_char(&local_input, ')')) - { - location->message = "Closing parenthesis for Thread expected."; - btp_thread_free(imthread); - return NULL; - } - } - - /* Read the end of the header line. */ - chars = btp_skip_string(&local_input, ":\n"); - if (0 == chars) - { - location->message = "Expected a colon followed by a newline ':\\n'."; - btp_thread_free(imthread); - return NULL; - } - /* Add the newline from the last btp_skip_string. */ - btp_location_add(location, 2, 0); - - /* Read the frames. */ - struct btp_frame *frame, *prevframe = NULL; - struct btp_location frame_location; - btp_location_init(&frame_location); - while ((frame = btp_frame_parse(&local_input, &frame_location))) - { - if (prevframe) - { - btp_frame_add_sibling(prevframe, frame); - prevframe = frame; - } - else - imthread->frames = prevframe = frame; - - btp_location_add(location, - frame_location.line, - frame_location.column); - } - if (!imthread->frames) - { - location->message = frame_location.message; - btp_thread_free(imthread); - return NULL; - } - - *input = local_input; - return imthread; -} - -int -btp_thread_skip_lwp(char **input) -{ - char *local_input = *input; - int count = btp_skip_string(&local_input, "(LWP "); - if (0 == count) - return 0; - int digits = btp_skip_unsigned_integer(&local_input); - if (0 == digits) - return 0; - count += digits; - if (!btp_skip_char(&local_input, ')')) - return 0; - *input = local_input; - return count + 1; -} diff --git a/src/btparser/thread.h b/src/btparser/thread.h deleted file mode 100644 index 47a0211b..00000000 --- a/src/btparser/thread.h +++ /dev/null @@ -1,215 +0,0 @@ -/* - thread.h - - Copyright (C) 2010 Red Hat, 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. -*/ -#ifndef BTPARSER_THREAD_H -#define BTPARSER_THREAD_H - -#include <stdbool.h> - -#ifdef __cplusplus -extern "C" { -#endif - -struct btp_frame; -struct strbuf; -struct btp_location; - -/** - * Represents a thread containing frames. - */ -struct btp_thread -{ - unsigned number; - /** - * Thread's frames, starting from the top of the stack. - */ - struct btp_frame *frames; - /** - * A sibling thread, or NULL if this is the last thread in a backtrace. - */ - struct btp_thread *next; -}; - -/** - * Creates and initializes a new frame structure. - * @returns - * It never returns NULL. The returned pointer must be released by - * calling the function btp_thread_free(). - */ -struct btp_thread * -btp_thread_new(); - -/** - * Initializes all members of the thread to default values. - * No memory is released, members are simply overwritten. - * This is useful for initializing a thread structure placed on the - * stack. - */ -void -btp_thread_init(struct btp_thread *thread); - -/** - * Releases the memory held by the thread. The thread siblings are not - * released. - * @param thread - * If thread is NULL, no operation is performed. - */ -void -btp_thread_free(struct btp_thread *thread); - -/** - * Creates a duplicate of the thread. - * @param thread - * It must be non-NULL pointer. The thread is not modified by calling - * this function. - * @param siblings - * Whether to duplicate also siblings referenced by thread->next. If - * false, thread->next is not duplicated for the new frame, but it is - * set to NULL. - */ -struct btp_thread * -btp_thread_dup(struct btp_thread *thread, - bool siblings); - -/** - * Compares two threads. When comparing the threads, it compares also - * their frames, including the frame numbers. - * @returns - * Returns 0 if the threads are same. Returns negative number if t1 - * is found to be 'less' than t2. Returns positive number if t1 is - * found to be 'greater' than t2. - */ -int -btp_thread_cmp(struct btp_thread *t1, struct btp_thread *t2); - -/** - * Puts the thread 'b' to the bottom of the stack 'a'. In other words, - * it finds the last sibling of the thread 'a', and appends the thread - * 'b' to this last sibling. - */ -struct btp_thread * -btp_thread_add_sibling(struct btp_thread *a, struct btp_thread *b); - -/** - * Returns the number of frames of the thread. - */ -int -btp_thread_get_frame_count(struct btp_thread *thread); - -/** - * Counts the number of 'good' frames and the number of all frames in - * a thread. Good means that the function name is known (so it's not - * just '??'). - * @param ok_count - * @param all_count - * Not zeroed. This function just adds the numbers to ok_count and - * all_count. - */ -void -btp_thread_quality_counts(struct btp_thread *thread, - int *ok_count, - int *all_count); - -/** - * Returns the quality of the thread. The quality is the ratio of the - * number of frames with function name fully known to the number of - * all frames. This function does not take into account that some - * frames are more important than others. - * @param thread - * Must be a non-NULL pointer. It's not modified in this function. - * @returns - * A number between 0 and 1. 0 means the lowest quality, 1 means full - * thread backtrace is known. If the thread contains no frames, this - * function returns 1. - */ -float -btp_thread_quality(struct btp_thread *thread); - -/** - * Removes the frame from the thread and then deletes it. - * @returns - * True if the frame was found in the thread and removed and deleted. - * False if the frame was not found in the thread. - */ -bool -btp_thread_remove_frame(struct btp_thread *thread, - struct btp_frame *frame); - -/** - * Removes all the frames from the thread that are above certain - * frame. - * @returns - * True if the frame was found, and all the frames that were above the - * frame in the thread were removed from the thread and then deleted. - * False if the frame was not found in the thread. - */ -bool -btp_thread_remove_frames_above(struct btp_thread *thread, - struct btp_frame *frame); - -/** - * Keeps only the top n frames in the thread. - */ -void -btp_thread_remove_frames_below_n(struct btp_thread *thread, - int n); - -/** - * Appends a textual representation of 'thread' to the 'str'. - */ -void -btp_thread_append_to_str(struct btp_thread *thread, - struct strbuf *str, - bool verbose); - -/** - * If the input contains proper thread with frames, parse the thread, - * move the input pointer after the thread, and return a structure - * representing the thread. Otherwise to not modify the input pointer - * and return NULL. - * @param location - * The caller must provide a pointer to struct btp_location here. The - * line and column members are gradually increased as the parser - * handles the input, keep this in mind to get reasonable values. - * When this function returns NULL (an error occurred), the structure - * will contain the error line, column, and message. - * @returns - * NULL or newly allocated structure, which should be released by - * calling btp_thread_free(). - */ -struct btp_thread * -btp_thread_parse(char **input, - struct btp_location *location); - -/** - * If the input contains a LWP section in form of "(LWP [0-9]+), move - * the input pointer after this section. Otherwise do not modify - * input. - * @returns - * The number of characters parsed from input. 0 if the input does not - * contain a LWP section. - */ -int -btp_thread_skip_lwp(char **input); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/src/btparser/utils.c b/src/btparser/utils.c deleted file mode 100644 index 1de329a7..00000000 --- a/src/btparser/utils.c +++ /dev/null @@ -1,423 +0,0 @@ -/* - utils.c - - Copyright (C) 2010 Red Hat, 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 "utils.h" -#include "location.h" -#include <stdio.h> -#include <string.h> -#include <errno.h> -#include <regex.h> -#include <limits.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <unistd.h> -#include <fcntl.h> - -bool btp_debug_parser = false; - -void * -btp_malloc(size_t size) -{ - void *ptr = malloc(size); - if (ptr == NULL) - { - fprintf(stderr, "btp: out of memory"); - exit(1); - } - return ptr; -} - -char * -btp_vasprintf(const char *format, va_list p) -{ - int r; - char *string_ptr; - -#if 1 - // GNU extension - r = vasprintf(&string_ptr, format, p); -#else - // Bloat for systems that haven't got the GNU extension. - va_list p2; - va_copy(p2, p); - r = vsnprintf(NULL, 0, format, p); - string_ptr = xmalloc(r+1); - r = vsnprintf(string_ptr, r+1, format, p2); - va_end(p2); -#endif - - if (r < 0) - { - fprintf(stderr, "btp: out of memory"); - exit(1); - } - - return string_ptr; -} - -char * -btp_strdup(const char *s) -{ - return btp_strndup(s, strlen(s)); -} - -char * -btp_strndup(const char *s, size_t n) -{ - char *result = strndup(s, n); - if (result == NULL) - { - fprintf(stderr, "btp: out of memory"); - exit(1); - } - return result; -} - -int -btp_strcmp0(const char *s1, const char *s2) -{ - if (!s1) - { - if (s2) - return -1; - return 0; - } - else - { - if (!s2) - return 1; - /* Both are non-null. */ - return strcmp(s1, s2); - } -} - -char * -btp_strchr_location(const char *s, int c, int *line, int *column) -{ - *line = 1; - *column = 0; - - /* Scan s for the character. When this loop is finished, - s will either point to the end of the string or the - character we were looking for. */ - while (*s != '\0' && *s != (char)c) - { - btp_location_eat_char_ext(line, column, *s); - ++s; - } - return ((*s == c) ? (char*)s : NULL); -} - -char * -btp_strstr_location(const char *haystack, - const char *needle, - int *line, - int *column) -{ - *line = 1; - *column = 0; - size_t needlelen; - - /* Check for the null needle case. */ - if (*needle == '\0') - return (char*)haystack; - - needlelen = strlen(needle); - int chrline, chrcolumn; - for (;(haystack = btp_strchr_location(haystack, *needle, &chrline, &chrcolumn)) != NULL; ++haystack) - { - btp_location_add_ext(line, column, chrline, chrcolumn); - - if (strncmp(haystack, needle, needlelen) == 0) - return (char*)haystack; - - btp_location_eat_char_ext(line, column, *haystack); - } - return NULL; -} - -size_t -btp_strspn_location(const char *s, - const char *accept, - int *line, - int *column) -{ - *line = 1; - *column = 0; - const char *sc; - for (sc = s; *sc != '\0'; ++sc) - { - if (strchr(accept, *sc) == NULL) - return (sc - s); - - btp_location_eat_char_ext(line, column, *sc); - } - return sc - s; /* terminating nulls don't match */ -} - -char * -btp_file_to_string(const char *filename) -{ - /* Open input file, and parse it. */ - int fd = open(filename, O_RDONLY | O_LARGEFILE); - if (fd < 0) - { - fprintf(stderr, "Unable to open '%s': %s.\n", - filename, strerror(errno)); - return NULL; - } - - off_t size = lseek(fd, 0, SEEK_END); - if (size < 0) /* EOVERFLOW? */ - { - fprintf(stderr, "Unable to seek in '%s': %s.\n", - filename, strerror(errno)); - } - - lseek(fd, 0, SEEK_SET); /* No reason to fail. */ - - static const size_t FILE_SIZE_LIMIT = 20000000; /* ~ 20 MB */ - if (size > FILE_SIZE_LIMIT) - { - fprintf(stderr, "Input file too big (%lld). Maximum size is %zd.\n", - (long long)size, FILE_SIZE_LIMIT); - close(fd); - return NULL; - } - - char *contents = btp_malloc(size + 1); - if (size != read(fd, contents, size)) - { - fprintf(stderr, "Unable to read from '%s'.\n", filename); - close(fd); - free(contents); - return NULL; - } - - /* Just reading, so no need to check the returned value. */ - close(fd); - - contents[size] = '\0'; - return contents; -} - -bool -btp_skip_char(char **input, char c) -{ - if (**input != c) - return false; - ++*input; - return true; -} - -bool -btp_skip_char_limited(char **input, const char *allowed) -{ - if (strchr(allowed, **input) == NULL) - return false; - ++*input; - return true; -} - -bool -btp_parse_char_limited(char **input, const char *allowed, char *result) -{ - if (**input == '\0') - return false; - if (strchr(allowed, **input) == NULL) - return false; - *result = **input; - ++*input; - return true; -} - -int -btp_skip_char_sequence(char **input, char c) -{ - int count = 0; - - /* Skip all the occurences of c. */ - while (btp_skip_char(input, c)) - ++count; - - return count; -} - -int -btp_skip_char_span(char **input, const char *chars) -{ - size_t count = strspn(*input, chars); - if (0 == count) - return count; - *input += count; - return count; -} - -int -btp_skip_char_span_location(char **input, - const char *chars, - int *line, - int *column) -{ - size_t count = btp_strspn_location(*input, chars, line, column); - if (0 == count) - return count; - *input += count; - return count; -} - -int -btp_parse_char_span(char **input, const char *accept, char **result) -{ - size_t count = strspn(*input, accept); - if (count == 0) - return 0; - *result = btp_strndup(*input, count); - *input += count; - return count; -} - -bool -btp_parse_char_cspan(char **input, const char *reject, char **result) -{ - size_t count = strcspn(*input, reject); - if (count == 0) - return false; - *result = btp_strndup(*input, count); - *input += count; - return true; -} - -int -btp_skip_string(char **input, const char *string) -{ - char *local_input = *input; - const char *local_string = string; - while (*local_string && *local_input && *local_input == *local_string) - { - ++local_input; - ++local_string; - } - if (*local_string != '\0') - return 0; - int count = local_input - *input; - *input = local_input; - return count; -} - -bool -btp_parse_string(char **input, const char *string, char **result) -{ - char *local_input = *input; - const char *local_string = string; - while (*local_string && *local_input && *local_input == *local_string) - { - ++local_input; - ++local_string; - } - if (*local_string != '\0') - return false; - *result = btp_strndup(string, local_input - *input); - *input = local_input; - return true; -} - -char -btp_parse_digit(char **input) -{ - char digit = **input; - if (digit < '0' || digit > '9') - return '\0'; - ++*input; - return digit; -} - -int -btp_skip_unsigned_integer(char **input) -{ - return btp_skip_char_span(input, "0123456789"); -} - -int -btp_parse_unsigned_integer(char **input, unsigned *result) -{ - char *local_input = *input; - char *numstr; - int length = btp_parse_char_span(&local_input, - "0123456789", - &numstr); - if (0 == length) - return 0; - - char *endptr; - errno = 0; - unsigned long r = strtoul(numstr, &endptr, 10); - bool failure = (errno || numstr == endptr || *endptr != '\0' - || r > UINT_MAX); - free(numstr); - if (failure) /* number too big or some other error */ - return 0; - *result = r; - *input = local_input; - return length; -} - -int -btp_skip_hexadecimal_number(char **input) -{ - char *local_input = *input; - if (!btp_skip_char(&local_input, '0')) - return 0; - if (!btp_skip_char(&local_input, 'x')) - return 0; - int count = 2; - count += btp_skip_char_span(&local_input, "abcdef0123456789"); - if (2 == count) /* btp_skip_char_span returned 0 */ - return 0; - *input = local_input; - return count; -} - -int -btp_parse_hexadecimal_number(char **input, uint64_t *result) -{ - char *local_input = *input; - if (!btp_skip_char(&local_input, '0')) - return 0; - if (!btp_skip_char(&local_input, 'x')) - return 0; - int count = 2; - char *numstr; - count += btp_parse_char_span(&local_input, - "abcdef0123456789", - &numstr); - - if (2 == count) /* btp_parse_char_span returned 0 */ - return 0; - char *endptr; - errno = 0; - unsigned long long r = strtoull(numstr, &endptr, 16); - bool failure = (errno || numstr == endptr || *endptr != '\0'); - free(numstr); - if (failure) /* number too big or some other error */ - return 0; - *result = r; - *input = local_input; - return count; -} diff --git a/src/btparser/utils.h b/src/btparser/utils.h deleted file mode 100644 index 680e67e0..00000000 --- a/src/btparser/utils.h +++ /dev/null @@ -1,284 +0,0 @@ -/* - utils.h - - Copyright (C) 2010 Red Hat, 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. -*/ -#ifndef BTPARSER_UTILS_H -#define BTPARSER_UTILS_H - -#include <stdlib.h> -#include <stdarg.h> -#include <stdbool.h> -#include <stdint.h> - -#ifdef __cplusplus -extern "C" { -#endif - -#define BTP_lower "abcdefghijklmnopqrstuvwxyz" -#define BTP_upper "ABCDEFGHIJKLMNOPQRSTUVWXYZ" -#define BTP_alpha BTP_lower BTP_upper -#define BTP_space " \t\r\n\v\f" -#define BTP_digit "0123456789" -#define BTP_alnum BTP_alpha BTP_digit - -/** - * Debugging output to stdout while parsing. - * Default value is false. - */ -extern bool -btp_debug_parser; - -/** - * Never returns NULL. - */ -void * -btp_malloc(size_t size); - -/** - * Never returns NULL. - */ -char * -btp_vasprintf(const char *format, va_list p); - -/** - * Never returns NULL. - */ -char * -btp_strdup(const char *s); - -/** - * Never returns NULL. - */ -char * -btp_strndup(const char *s, size_t n); - -/** - * A strcmp() variant that works also with NULL parameters. NULL is - * considered to be less than a string. - */ -int -btp_strcmp0(const char *s1, const char *s2); - -/** - * A strchr() variant providing line and column in the string s - * indicating where the char c was found. - * @param line - * Starts from 1. Its value is valid only when this function does not - * return NULL. - * @param column - * Starts from 0. Its value is valid only when this function does not - * return NULL. - */ -char * -btp_strchr_location(const char *s, int c, int *line, int *column); - -/** - * A strstr() variant providing line and column of the haystick - * indicating where the needle was found. - * @param line - * Starts from 1. Its value is valid only when this function does not - * return NULL. - * @param column - * Starts from 0. Its value is valid only when this function does not - * return NULL. - */ -char * -btp_strstr_location(const char *haystack, - const char *needle, - int *line, - int *column); - -/** - * A strspn() variant providing line and column of the string s which - * corresponds to the returned length. - * @param line - * Starts from 1. - * @param column - * Starts from 0. - */ -size_t -btp_strspn_location(const char *s, - const char *accept, - int *line, - int *column); - -/** - * Loads file contents to a string. - * @returns - * File contents. If file opening/reading fails, NULL is returned. - */ -char * -btp_file_to_string(const char *filename); - -/** - * If the input contains character c in the current positon, move the - * input pointer after the character, and return true. Otherwise do - * not modify the input and return false. - */ -bool -btp_skip_char(char **input, char c); - -/** - * If the input contains one of allowed characters, move - * the input pointer after that character, and return true. - * Otherwise do not modify the input and return false. - */ -bool -btp_skip_char_limited(char **input, const char *allowed); - -/** - * If the input contains one of allowed characters, store - * the character to the result, move the input pointer after - * that character, and return true. Otherwise do not modify - * the input and return false. - */ -bool -btp_parse_char_limited(char **input, const char *allowed, char *result); - -/** - * If the input contains the character c one or more times, update it - * so that the characters are skipped. Returns the number of characters - * skipped, thus zero if **input does not contain c. - */ -int -btp_skip_char_sequence(char **input, char c); - -/** - * If the input contains one or more characters from string chars, - * move the input pointer after the sequence. Otherwise do not modify - * the input. - * @returns - * The number of characters skipped. - */ -int -btp_skip_char_span(char **input, const char *chars); - -/** - * If the input contains one or more characters from string chars, - * move the input pointer after the sequence. Otherwise do not modify - * the input. - * @param line - * Starts from 1. Corresponds to the returned number. - * @param column - * Starts from 0. Corresponds to the returned number. - * @returns - * The number of characters skipped. - */ -int -btp_skip_char_span_location(char **input, - const char *chars, - int *line, - int *column); - -/** - * If the input contains one or more characters from string accept, - * create a string from this sequence and store it to the result, move - * the input pointer after the sequence, and return the lenght of the - * sequence. Otherwise do not modify the input and return 0. - * - * If this function returns nonzero value, the caller is responsible - * to free the result. - */ -int -btp_parse_char_span(char **input, const char *accept, char **result); - -/** - * If the input contains characters which are not in string reject, - * create a string from this sequence and store it to the result, - * move the input pointer after the sequence, and return true. - * Otherwise do not modify the input and return false. - * - * If this function returns true, the caller is responsible to - * free the result. - */ -bool -btp_parse_char_cspan(char **input, const char *reject, char **result); - -/** - * If the input contains the string, move the input pointer after - * the sequence. Otherwise do not modify the input. - * @returns - * Number of characters skipped. 0 if the input does not contain the - * string. - */ -int -btp_skip_string(char **input, const char *string); - -/** - * If the input contains the string, copy the string to result, - * move the input pointer after the string, and return true. - * Otherwise do not modify the input and return false. - * - * If this function returns true, the caller is responsible to free - * the result. - */ -bool -btp_parse_string(char **input, const char *string, char **result); - -/** - * If the input contains digit 0-9, return it as a character - * and move the input pointer after it. Otherwise return - * '\0' and do not modify the input. - */ -char -btp_parse_digit(char **input); - -/** - * If the input contains [0-9]+, move the input pointer - * after the number. - * @returns - * The number of skipped characters. 0 if input does not start with a - * digit. - */ -int -btp_skip_unsigned_integer(char **input); - -/** - * If the input contains [0-9]+, parse it, move the input pointer - * after the number. - * @returns - * Number of parsed characters. 0 if input does not contain a number. - */ -int -btp_parse_unsigned_integer(char **input, unsigned *result); - -/** - * If the input contains 0x[0-9a-f]+, move the input pointer - * after that. - * @returns - * The number of characters processed from input. 0 if the input does - * not contain a hexadecimal number. - */ -int -btp_skip_hexadecimal_number(char **input); - -/** - * If the input contains 0x[0-9a-f]+, parse the number, and move the - * input pointer after it. Otherwise do not modify the input. - * @returns - * The number of characters read from input. 0 if the input does not - * contain a hexadecimal number. - */ -int -btp_parse_hexadecimal_number(char **input, uint64_t *result); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/src/plugins/Makefile.am b/src/plugins/Makefile.am index b041b060..040ade1f 100644 --- a/src/plugins/Makefile.am +++ b/src/plugins/Makefile.am @@ -247,7 +247,7 @@ abrt_action_analyze_backtrace_CPPFLAGS = \ -Wall -Wwrite-strings -Werror abrt_action_analyze_backtrace_LDADD = \ $(LIBREPORT_LIBS) \ - ../btparser/libbtparser.la + $(BTPARSER_LIBS) abrt_action_bugzilla_SOURCES = \ abrt-action-bugzilla.c rhbz.c rhbz.h @@ -405,7 +405,7 @@ abrt_retrace_client_SOURCES = \ -Wall -Wwrite-strings -Werror abrt_retrace_client_LDADD = \ $(LIBREPORT_LIBS) \ - ../btparser/libbtparser.la \ + $(BTPARSER_LIBS) \ $(NSS_LIBS) DEFS = -DLOCALEDIR=\"$(localedir)\" @DEFS@ diff --git a/src/plugins/abrt-action-analyze-backtrace.c b/src/plugins/abrt-action-analyze-backtrace.c index 43293c0b..eb75d634 100644 --- a/src/plugins/abrt-action-analyze-backtrace.c +++ b/src/plugins/abrt-action-analyze-backtrace.c @@ -16,9 +16,9 @@ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "abrtlib.h" -#include "../btparser/backtrace.h" -#include "../btparser/frame.h" -#include "../btparser/location.h" +#include <btparser/backtrace.h> +#include <btparser/frame.h> +#include <btparser/location.h> #include "parse_options.h" static const char *dump_dir_name = "."; @@ -78,7 +78,7 @@ int main(int argc, char **argv) /* Compute backtrace hash */ struct btp_location location; btp_location_init(&location); - char *backtrace_str_ptr = backtrace_str; + const char *backtrace_str_ptr = backtrace_str; struct btp_backtrace *backtrace = btp_backtrace_parse(&backtrace_str_ptr, &location); free(backtrace_str); diff --git a/src/plugins/abrt-action-generate-backtrace.c b/src/plugins/abrt-action-generate-backtrace.c index 1d06871a..b5e845bc 100644 --- a/src/plugins/abrt-action-generate-backtrace.c +++ b/src/plugins/abrt-action-generate-backtrace.c @@ -17,9 +17,9 @@ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "abrtlib.h" -#include "../btparser/backtrace.h" -#include "../btparser/frame.h" -#include "../btparser/location.h" +#include <btparser/backtrace.h> +#include <btparser/frame.h> +#include <btparser/location.h> #include "parse_options.h" |