501edd29b8
Supports collecting the stack trace of the current thread, another thread in the same process, or a thread in a different process (using ptrace). Change-Id: Ica2594e4436edde4ceb7bcc3d78e6c31a7902cbf
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/*
|
|
* Copyright (C) 2011 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#define LOG_TAG "Corkscrew"
|
|
//#define LOG_NDEBUG 0
|
|
|
|
#include "backtrace-helper.h"
|
|
|
|
#include <cutils/log.h>
|
|
|
|
backtrace_frame_t* add_backtrace_entry(uintptr_t pc, backtrace_frame_t* backtrace,
|
|
size_t ignore_depth, size_t max_depth,
|
|
size_t* ignored_frames, size_t* returned_frames) {
|
|
if (*ignored_frames < ignore_depth) {
|
|
*ignored_frames += 1;
|
|
return NULL;
|
|
}
|
|
if (*returned_frames >= max_depth) {
|
|
return NULL;
|
|
}
|
|
backtrace_frame_t* frame = &backtrace[*returned_frames];
|
|
frame->absolute_pc = pc;
|
|
frame->stack_top = 0;
|
|
frame->stack_size = 0;
|
|
*returned_frames += 1;
|
|
return frame;
|
|
}
|