diff options
Diffstat (limited to 'src/btparser/normalize_glibc.c')
| -rw-r--r-- | src/btparser/normalize_glibc.c | 131 |
1 files changed, 0 insertions, 131 deletions
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; - } -} |