am fe0d5d42: am 5434bf66: Merge "LP64: Enable debuggerd/libbacktrace/libunwind." (9361b583) · Commits · e / os / android_system_core

debuggerd/Android.mk

+2 −1

Original line number	Diff line number	Diff line
		# Copyright 2005 The Android Open Source Project

		ifneq ($(filter arm mips x86,$(TARGET_ARCH)),)
		ifneq ($(filter arm mips x86 x86_64,$(TARGET_ARCH)),)

		LOCAL_PATH:= $(call my-dir)
		include $(CLEAR_VARS)
		@@ -19,6 +19,7 @@ LOCAL_CFLAGS := \
		-Wall \
		-Wno-array-bounds \
		-Werror \
		-Wno-unused-parameter \

		LOCAL_MODULE := debuggerd

debuggerd/tombstone.cpp

100644 → 100755

+18 −27

Original line number	Diff line number	Diff line
		@@ -179,9 +179,9 @@ static void dump_fault_addr(log_t* log, pid_t tid, int sig) {
		if (ptrace(PTRACE_GETSIGINFO, tid, 0, &si)){
		_LOG(log, SCOPE_AT_FAULT, "cannot get siginfo: %s\n", strerror(errno));
		} else if (signal_has_address(sig)) {
		_LOG(log, SCOPE_AT_FAULT, "signal %d (%s), code %d (%s), fault addr %0*" PRIxPTR "\n",
		_LOG(log, SCOPE_AT_FAULT, "signal %d (%s), code %d (%s), fault addr %" PRIPTR "\n",
		sig, get_signame(sig), si.si_code, get_sigcode(sig, si.si_code),
		sizeof(uintptr_t)*2, reinterpret_cast<uintptr_t>(si.si_addr));
		reinterpret_cast<uintptr_t>(si.si_addr));
		} else {
		_LOG(log, SCOPE_AT_FAULT, "signal %d (%s), code %d (%s), fault addr --------\n",
		sig, get_signame(sig), si.si_code, get_sigcode(sig, si.si_code));
		@@ -226,7 +226,7 @@ static void dump_thread_info(log_t* log, pid_t pid, pid_t tid, int scope_flags)
		static void dump_stack_segment(
		Backtrace* backtrace, log_t* log, int scope_flags, uintptr_t* sp, size_t words, int label) {
		for (size_t i = 0; i < words; i++) {
		uint32_t stack_content;
		word_t stack_content;
		if (!backtrace->ReadWord(*sp, &stack_content)) {
		break;
		}
		@@ -243,32 +243,32 @@ static void dump_stack_segment(
		if (!func_name.empty()) {
		if (!i && label >= 0) {
		if (offset) {
		_LOG(log, scope_flags, " #%02d %08x %08x %s (%s+%u)\n",
		_LOG(log, scope_flags, " #%02d %" PRIPTR " %" PRIPTR " %s (%s+%" PRIxPTR "u)\n",
		label, *sp, stack_content, map_name, func_name.c_str(), offset);
		} else {
		_LOG(log, scope_flags, " #%02d %08x %08x %s (%s)\n",
		_LOG(log, scope_flags, " #%02d %" PRIPTR " %" PRIPTR " %s (%s)\n",
		label, *sp, stack_content, map_name, func_name.c_str());
		}
		} else {
		if (offset) {
		_LOG(log, scope_flags, " %08x %08x %s (%s+%u)\n",
		_LOG(log, scope_flags, " %" PRIPTR " %" PRIPTR " %s (%s+%" PRIxPTR "u)\n",
		*sp, stack_content, map_name, func_name.c_str(), offset);
		} else {
		_LOG(log, scope_flags, " %08x %08x %s (%s)\n",
		_LOG(log, scope_flags, " %" PRIPTR " %" PRIPTR " %s (%s)\n",
		*sp, stack_content, map_name, func_name.c_str());
		}
		}
		} else {
		if (!i && label >= 0) {
		_LOG(log, scope_flags, " #%02d %08x %08x %s\n",
		_LOG(log, scope_flags, " #%02d %" PRIPTR " %" PRIPTR " %s\n",
		label, *sp, stack_content, map_name);
		} else {
		_LOG(log, scope_flags, " %08x %08x %s\n",
		_LOG(log, scope_flags, " %" PRIPTR " %" PRIPTR " %s\n",
		*sp, stack_content, map_name);
		}
		}

		*sp += sizeof(uint32_t);
		*sp += sizeof(word_t);
		}
		}

		@@ -291,7 +291,7 @@ static void dump_stack(Backtrace* backtrace, log_t* log, int scope_flags) {
		scope_flags \|= SCOPE_SENSITIVE;

		// Dump a few words before the first frame.
		uintptr_t sp = backtrace->GetFrame(first)->sp - STACK_WORDS * sizeof(uint32_t);
		word_t sp = backtrace->GetFrame(first)->sp - STACK_WORDS * sizeof(word_t);
		dump_stack_segment(backtrace, log, scope_flags, &sp, STACK_WORDS, -1);

		// Dump a few words from all successive frames.
		@@ -311,7 +311,7 @@ static void dump_stack(Backtrace* backtrace, log_t* log, int scope_flags) {
		_LOG(log, scope_flags, " ........ ........\n");
		}
		} else {
		size_t words = frame->stack_size / sizeof(uint32_t);
		size_t words = frame->stack_size / sizeof(word_t);
		if (words == 0) {
		words = 1;
		} else if (words > STACK_WORDS) {
		@@ -334,7 +334,7 @@ static void dump_backtrace_and_stack(Backtrace* backtrace, log_t* log, int scope

		static void dump_map(log_t* log, const backtrace_map_t* map, const char* what, int scope_flags) {
		if (map != NULL) {
		_LOG(log, scope_flags, " %08x-%08x %c%c%c %s\n", map->start, map->end,
		_LOG(log, scope_flags, " %" PRIPTR "-%" PRIPTR " %c%c%c %s\n", map->start, map->end,
		(map->flags & PROT_READ) ? 'r' : '-', (map->flags & PROT_WRITE) ? 'w' : '-',
		(map->flags & PROT_EXEC) ? 'x' : '-', map->name.c_str());
		} else {
		@@ -567,24 +567,15 @@ static void dump_abort_message(Backtrace* backtrace, log_t* log, uintptr_t addre
		memset(msg, 0, sizeof(msg));
		char* p = &msg[0];
		while (p < &msg[sizeof(msg)]) {
		uint32_t data;
		word_t data;
		size_t len = sizeof(word_t);
		if (!backtrace->ReadWord(address, &data)) {
		break;
		}
		address += sizeof(uint32_t);
		address += sizeof(word_t);

		if ((*p++ = (data >> 0) & 0xff) == 0) {
		break;
		}
		if ((*p++ = (data >> 8) & 0xff) == 0) {
		break;
		}
		if ((*p++ = (data >> 16) & 0xff) == 0) {
		break;
		}
		if ((*p++ = (data >> 24) & 0xff) == 0) {
		break;
		}
		while (len > 0 && (p++ = (data >> (sizeof(word_t) - len) 8) & 0xff) != 0)
		len--;
		}
		msg[sizeof(msg) - 1] = '\0';

debuggerd/utility.cpp

+19 −28

Original line number	Diff line number	Diff line
		@@ -14,19 +14,17 @@
		* limitations under the License.
		*/

		#include <stddef.h>
		#include <stdio.h>
		#include <string.h>
		#include "utility.h"

		#include <errno.h>
		#include <unistd.h>
		#include <signal.h>
		#include <log/logd.h>
		#include <string.h>
		#include <unistd.h>
		#include <sys/ptrace.h>
		#include <sys/wait.h>
		#include <arpa/inet.h>
		#include <assert.h>

		#include "utility.h"
		#include <backtrace/Backtrace.h>
		#include <log/logd.h>

		const int sleep_time_usec = 50000; // 0.05 seconds
		const int max_total_sleep_usec = 10000000; // 10 seconds
		@@ -46,34 +44,28 @@ static int write_to_am(int fd, const char* buf, int len) {
		}

		void _LOG(log_t* log, int scopeFlags, const char* fmt, ...) {
		char buf[512];
		bool want_tfd_write;
		bool want_log_write;
		bool want_amfd_write;
		int len = 0;
		bool want_tfd_write = log && log->tfd >= 0;
		bool want_log_write = IS_AT_FAULT(scopeFlags) && (!log \|\| !log->quiet);
		bool want_amfd_write = IS_AT_FAULT(scopeFlags) && !IS_SENSITIVE(scopeFlags) && log && log->amfd >= 0;

		char buf[512];
		va_list ap;
		va_start(ap, fmt);

		// where is the information going to go?
		want_tfd_write = log && log->tfd >= 0;
		want_log_write = IS_AT_FAULT(scopeFlags) && (!log \|\| !log->quiet);
		want_amfd_write = IS_AT_FAULT(scopeFlags) && !IS_SENSITIVE(scopeFlags) && log && log->amfd >= 0;

		// if we're going to need the literal string, generate it once here
		if (want_tfd_write \|\| want_amfd_write) {
		vsnprintf(buf, sizeof(buf), fmt, ap);
		len = strlen(buf);
		va_end(ap);

		size_t len = strlen(buf);
		if (len <= 0) {
		return;
		}

		if (want_tfd_write) {
		write(log->tfd, buf, len);
		TEMP_FAILURE_RETRY(write(log->tfd, buf, len));
		}

		if (want_log_write) {
		// whatever goes to logcat also goes to the Activity Manager
		__android_log_vprint(ANDROID_LOG_INFO, "DEBUG", fmt, ap);
		if (want_amfd_write && len > 0) {
		__android_log_write(ANDROID_LOG_INFO, "DEBUG", buf);
		if (want_amfd_write) {
		int written = write_to_am(log->amfd, buf, len);
		if (written <= 0) {
		// timeout or other failure on write; stop informing the activity manager
		@@ -81,7 +73,6 @@ void _LOG(log_t* log, int scopeFlags, const char* fmt, ...) {
		}
		}
		}
		va_end(ap);
		}

		int wait_for_signal(pid_t tid, int* total_sleep_time_usec) {

debuggerd/utility.h

+1 −10

Original line number	Diff line number	Diff line
		@@ -18,9 +18,8 @@
		#ifndef _DEBUGGERD_UTILITY_H
		#define _DEBUGGERD_UTILITY_H

		#include <inttypes.h>
		#include <stdbool.h>
		#include <stddef.h>
		#include <sys/types.h>

		typedef struct {
		/* tombstone file descriptor */
		@@ -61,14 +60,6 @@ void _LOG(log_t* log, int scopeFlags, const char *fmt, ...)
		#define XLOG2(fmt...) do {} while(0)
		#endif

		#if __LP64__
		#define PRIPTR "016" PRIxPTR
		typedef uint64_t word_t;
		#else
		#define PRIPTR "08" PRIxPTR
		typedef uint32_t word_t;
		#endif

		int wait_for_signal(pid_t tid, int* total_sleep_time_usec);
		void wait_for_stop(pid_t tid, int* total_sleep_time_usec);

debuggerd/x86_64/crashglue.S

0 → 100644

+15 −0

Original line number	Diff line number	Diff line
		.globl crash1
		.globl crashnostack

		crash1:
		movl $0xa5a50000, %eax
		movl $0xa5a50001, %ebx
		movl $0xa5a50002, %ecx

		movl $0, %edx
		jmp *%rdx


		crashnostack:
		movl $0, %ebp
		jmp *%rbp