debuggerd: Reorganize to facilitate IA commit (9e393382) · Commits · e / os / android_system_core

debuggerd/Android.mk

+6 −2

Original line number	Diff line number	Diff line
		@@ -5,7 +5,11 @@ ifeq ($(TARGET_ARCH),arm)
		LOCAL_PATH:= $(call my-dir)
		include $(CLEAR_VARS)

		LOCAL_SRC_FILES:= debuggerd.c getevent.c unwind-arm.c pr-support.c utility.c symbol_table.c
		LOCAL_SRC_FILES:= debuggerd.c utility.c getevent.c $(TARGET_ARCH)/machine.c $(TARGET_ARCH)/unwind.c symbol_table.c
		ifeq ($(TARGET_ARCH),arm)
		LOCAL_SRC_FILES += $(TARGET_ARCH)/pr-support.c
		endif

		LOCAL_CFLAGS := -Wall
		LOCAL_MODULE := debuggerd

		@@ -22,7 +26,7 @@ include $(BUILD_EXECUTABLE)

		include $(CLEAR_VARS)
		LOCAL_SRC_FILES := crasher.c
		LOCAL_SRC_FILES += crashglue.S
		LOCAL_SRC_FILES += $(TARGET_ARCH)/crashglue.S
		LOCAL_MODULE := crasher
		LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
		LOCAL_MODULE_TAGS := eng

debuggerd/crashglue.S→debuggerd/arm/crashglue.S

+1 −1

File changed and moved.

Contains only whitespace changes.

debuggerd/arm/machine.c

0 → 100644

+229 −0

Original line number	Diff line number	Diff line
		/* system/debuggerd/debuggerd.c
		**
		** Copyright 2006, 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 <stdio.h>
		#include <errno.h>
		#include <signal.h>
		#include <pthread.h>
		#include <fcntl.h>
		#include <sys/types.h>
		#include <dirent.h>

		#include <sys/ptrace.h>
		#include <sys/wait.h>
		#include <sys/exec_elf.h>
		#include <sys/stat.h>

		#include <cutils/sockets.h>
		#include <cutils/properties.h>

		#include <linux/input.h>

		#include "utility.h"

		#ifdef WITH_VFP
		#ifdef WITH_VFP_D32
		#define NUM_VFP_REGS 32
		#else
		#define NUM_VFP_REGS 16
		#endif
		#endif

		/* Main entry point to get the backtrace from the crashing process */
		extern int unwind_backtrace_with_ptrace(int tfd, pid_t pid, mapinfo *map,
		unsigned int sp_list[],
		int *frame0_pc_sane,
		bool at_fault);

		void dump_stack_and_code(int tfd, int pid, mapinfo *map,
		int unwind_depth, unsigned int sp_list[],
		bool at_fault)
		{
		unsigned int sp, pc, p, end, data;
		struct pt_regs r;
		int sp_depth;
		bool only_in_tombstone = !at_fault;
		char code_buffer[80];

		if(ptrace(PTRACE_GETREGS, pid, 0, &r)) return;
		sp = r.ARM_sp;
		pc = r.ARM_pc;

		_LOG(tfd, only_in_tombstone, "\ncode around pc:\n");

		end = p = pc & ~3;
		p -= 32;
		end += 32;

		/* Dump the code around PC as:
		* addr contents
		* 00008d34 fffffcd0 4c0eb530 b0934a0e 1c05447c
		* 00008d44 f7ff18a0 490ced94 68035860 d0012b00
		*/
		while (p <= end) {
		int i;

		sprintf(code_buffer, "%08x ", p);
		for (i = 0; i < 4; i++) {
		data = ptrace(PTRACE_PEEKTEXT, pid, (void*)p, NULL);
		sprintf(code_buffer + strlen(code_buffer), "%08x ", data);
		p += 4;
		}
		_LOG(tfd, only_in_tombstone, "%s\n", code_buffer);
		}

		if ((unsigned) r.ARM_lr != pc) {
		_LOG(tfd, only_in_tombstone, "\ncode around lr:\n");

		end = p = r.ARM_lr & ~3;
		p -= 32;
		end += 32;

		/* Dump the code around LR as:
		* addr contents
		* 00008d34 fffffcd0 4c0eb530 b0934a0e 1c05447c
		* 00008d44 f7ff18a0 490ced94 68035860 d0012b00
		*/
		while (p <= end) {
		int i;

		sprintf(code_buffer, "%08x ", p);
		for (i = 0; i < 4; i++) {
		data = ptrace(PTRACE_PEEKTEXT, pid, (void*)p, NULL);
		sprintf(code_buffer + strlen(code_buffer), "%08x ", data);
		p += 4;
		}
		_LOG(tfd, only_in_tombstone, "%s\n", code_buffer);
		}
		}

		p = sp - 64;
		p &= ~3;
		if (unwind_depth != 0) {
		if (unwind_depth < STACK_CONTENT_DEPTH) {
		end = sp_list[unwind_depth-1];
		}
		else {
		end = sp_list[STACK_CONTENT_DEPTH-1];
		}
		}
		else {
		end = sp \| 0x000000ff;
		end += 0xff;
		}

		_LOG(tfd, only_in_tombstone, "\nstack:\n");

		/* If the crash is due to PC == 0, there will be two frames that
		* have identical SP value.
		*/
		if (sp_list[0] == sp_list[1]) {
		sp_depth = 1;
		}
		else {
		sp_depth = 0;
		}

		while (p <= end) {
		char *prompt;
		char level[16];
		data = ptrace(PTRACE_PEEKTEXT, pid, (void*)p, NULL);
		if (p == sp_list[sp_depth]) {
		sprintf(level, "#%02d", sp_depth++);
		prompt = level;
		}
		else {
		prompt = " ";
		}

		/* Print the stack content in the log for the first 3 frames. For the
		* rest only print them in the tombstone file.
		*/
		_LOG(tfd, (sp_depth > 2) \|\| only_in_tombstone,
		"%s %08x %08x %s\n", prompt, p, data,
		map_to_name(map, data, ""));
		p += 4;
		}
		/* print another 64-byte of stack data after the last frame */

		end = p+64;
		while (p <= end) {
		data = ptrace(PTRACE_PEEKTEXT, pid, (void*)p, NULL);
		_LOG(tfd, (sp_depth > 2) \|\| only_in_tombstone,
		" %08x %08x %s\n", p, data,
		map_to_name(map, data, ""));
		p += 4;
		}
		}

		void dump_pc_and_lr(int tfd, int pid, mapinfo *map, int unwound_level,
		bool at_fault)
		{
		struct pt_regs r;

		if(ptrace(PTRACE_GETREGS, pid, 0, &r)) {
		_LOG(tfd, !at_fault, "tid %d not responding!\n", pid);
		return;
		}

		if (unwound_level == 0) {
		_LOG(tfd, !at_fault, " #%02d pc %08x %s\n", 0, r.ARM_pc,
		map_to_name(map, r.ARM_pc, "<unknown>"));
		}
		_LOG(tfd, !at_fault, " #%02d lr %08x %s\n", 1, r.ARM_lr,
		map_to_name(map, r.ARM_lr, "<unknown>"));
		}

		void dump_registers(int tfd, int pid, bool at_fault)
		{
		struct pt_regs r;
		bool only_in_tombstone = !at_fault;

		if(ptrace(PTRACE_GETREGS, pid, 0, &r)) {
		_LOG(tfd, only_in_tombstone,
		"cannot get registers: %s\n", strerror(errno));
		return;
		}

		_LOG(tfd, only_in_tombstone, " r0 %08x r1 %08x r2 %08x r3 %08x\n",
		r.ARM_r0, r.ARM_r1, r.ARM_r2, r.ARM_r3);
		_LOG(tfd, only_in_tombstone, " r4 %08x r5 %08x r6 %08x r7 %08x\n",
		r.ARM_r4, r.ARM_r5, r.ARM_r6, r.ARM_r7);
		_LOG(tfd, only_in_tombstone, " r8 %08x r9 %08x 10 %08x fp %08x\n",
		r.ARM_r8, r.ARM_r9, r.ARM_r10, r.ARM_fp);
		_LOG(tfd, only_in_tombstone,
		" ip %08x sp %08x lr %08x pc %08x cpsr %08x\n",
		r.ARM_ip, r.ARM_sp, r.ARM_lr, r.ARM_pc, r.ARM_cpsr);

		#ifdef WITH_VFP
		struct user_vfp vfp_regs;
		int i;

		if(ptrace(PTRACE_GETVFPREGS, pid, 0, &vfp_regs)) {
		_LOG(tfd, only_in_tombstone,
		"cannot get registers: %s\n", strerror(errno));
		return;
		}

		for (i = 0; i < NUM_VFP_REGS; i += 2) {
		_LOG(tfd, only_in_tombstone,
		" d%-2d %016llx d%-2d %016llx\n",
		i, vfp_regs.fpregs[i], i+1, vfp_regs.fpregs[i+1]);
		}
		_LOG(tfd, only_in_tombstone, " scr %08lx\n\n", vfp_regs.fpscr);
		#endif
		}

debuggerd/pr-support.c→debuggerd/arm/pr-support.c

+0 −0

File moved.

View file

debuggerd/unwind-arm.c→debuggerd/arm/unwind.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -430,7 +430,7 @@ static _Unwind_Reason_Code log_function(_Unwind_Context *context, pid_t pid,
		if (pc & 1) {
		_uw prev_word;
		pc = (pc & ~1);
		prev_word = get_remote_word(pid, (void *) pc-4);
		prev_word = get_remote_word(pid, (char *) pc-4);
		// Long offset
		if ((prev_word & 0xf0000000) == 0xf0000000 &&
		(prev_word & 0x0000e000) == 0x0000e000) {