| /* |
| * Copyright (C) 2010 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. |
| */ |
| |
| #include <unistd.h> |
| #include <stdio.h> |
| #include <malloc.h> |
| #include <string.h> |
| |
| /* Currently debuggerd dumps 20 words each around PC and LR */ |
| #define NUM_DUMPED_WORDS 20 |
| |
| volatile int done; |
| |
| /* |
| * See README.txt for detailed steps. |
| * |
| * If you see a native crash in the bugreport and the PC/LR are |
| * pointing to the code cache address range, copy them into the following |
| * arrays. |
| * |
| * #00 pc 463ba204 |
| * #01 lr 463ba1c9 <unknown> |
| * |
| * code around pc: |
| * 463ba1e4 4300e119 4284aa7a f927f7b7 40112268 |
| * 463ba1f4 419da7f8 00002000 01000100 00080000 |
| * 463ba204 4191debc 01010000 4284aa74 68b00054 |
| * 463ba214 045cf205 cc016468 0718f2a5 d0102800 |
| * 463ba224 4c13c701 a20aa108 efb0f775 e008e010 |
| * |
| * code around lr: |
| * 463ba1a8 42e19e58 f2050050 cc01045c 0718f2a5 |
| * 463ba1b8 d00f2800 4c13c701 a20aa108 efe4f775 |
| * 463ba1c8 e007e010 29006bf8 6e77dc01 a10347b8 |
| * 463ba1d8 ef60f775 6db1480b 1c2d4788 4300e119 |
| * 463ba1e8 4284aa7a f927f7b7 40112268 419da7f8 |
| * |
| */ |
| |
| int codePC[] = { |
| // Sample content |
| 0x4300e119, 0x4284aa7a, 0xf927f7b7, 0x40112268, |
| 0x419da7f8, 0x00002000, 0x01000100, 0x00080000, |
| 0x4191debc, 0x01010000, 0x4284aa74, 0x68b00054, |
| 0x045cf205, 0xcc016468, 0x0718f2a5, 0xd0102800, |
| 0x4c13c701, 0xa20aa108, 0xefb0f775, 0xe008e010, |
| }; |
| |
| int codeLR[] = { |
| // Sample content |
| 0x42e19e58, 0xf2050050, 0xcc01045c, 0x0718f2a5, |
| 0xd00f2800, 0x4c13c701, 0xa20aa108, 0xefe4f775, |
| 0xe007e010, 0x29006bf8, 0x6e77dc01, 0xa10347b8, |
| 0xef60f775, 0x6db1480b, 0x1c2d4788, 0x4300e119, |
| 0x4284aa7a, 0xf927f7b7, 0x40112268, 0x419da7f8, |
| }; |
| |
| /* For example: 463ba1e4 & 0xfff */ |
| #define START_PC_PAGE_OFFSET 0x1e4 |
| |
| /* For example: 463ba1a8 & 0xfff */ |
| #define START_LR_PAGE_OFFSET 0x1a8 |
| |
| /* Each points to a two-page buffer */ |
| char *codePCCache, *codeLRCache; |
| |
| void dumpCode(int *pc, int *lr) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < NUM_DUMPED_WORDS; i++) { |
| printf("%p codePC[%d]: %#010x\n", pc + i, i, pc[i]); |
| } |
| |
| for (i = 0; i < NUM_DUMPED_WORDS; i++) { |
| printf("%p codeLR[%d]: %#010x\n", lr + i, i, lr[i]); |
| } |
| } |
| |
| int main() |
| { |
| codePCCache = memalign(4096, 8192); |
| codeLRCache = memalign(4096, 8192); |
| |
| memcpy(codePCCache + START_PC_PAGE_OFFSET, codePC, 4 * NUM_DUMPED_WORDS); |
| memcpy(codeLRCache + START_LR_PAGE_OFFSET, codeLR, 4 * NUM_DUMPED_WORDS); |
| |
| dumpCode((int *) (codePCCache + START_PC_PAGE_OFFSET), |
| (int *) (codeLRCache + START_LR_PAGE_OFFSET)); |
| |
| while (!done) { |
| sleep(1000); |
| } |
| return 0; |
| } |