blob: 15792e8b345dfac107691caaf2ca76aa3cb8919b [file] [log] [blame]
/*
* Copyright (C) 2007 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 "android.os.Debug"
#include "JNIHelp.h"
#include "jni.h"
#include <utils/String8.h>
#include "utils/misc.h"
#include "cutils/debugger.h"
#include <memtrack/memtrack.h>
#include <cutils/log.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include <sys/time.h>
#include <errno.h>
#include <assert.h>
#include <ctype.h>
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
namespace android
{
enum {
HEAP_UNKNOWN,
HEAP_DALVIK,
HEAP_NATIVE,
HEAP_DALVIK_OTHER,
HEAP_STACK,
HEAP_CURSOR,
HEAP_ASHMEM,
HEAP_UNKNOWN_DEV,
HEAP_SO,
HEAP_JAR,
HEAP_APK,
HEAP_TTF,
HEAP_DEX,
HEAP_OAT,
HEAP_ART,
HEAP_UNKNOWN_MAP,
HEAP_GRAPHICS,
HEAP_GL,
HEAP_OTHER_MEMTRACK,
HEAP_DALVIK_NORMAL,
HEAP_DALVIK_LARGE,
HEAP_DALVIK_LINEARALLOC,
HEAP_DALVIK_ACCOUNTING,
HEAP_DALVIK_CODE_CACHE,
_NUM_HEAP,
_NUM_EXCLUSIVE_HEAP = HEAP_OTHER_MEMTRACK+1,
_NUM_CORE_HEAP = HEAP_NATIVE+1
};
struct stat_fields {
jfieldID pss_field;
jfieldID pssSwappable_field;
jfieldID privateDirty_field;
jfieldID sharedDirty_field;
jfieldID privateClean_field;
jfieldID sharedClean_field;
};
struct stat_field_names {
const char* pss_name;
const char* pssSwappable_name;
const char* privateDirty_name;
const char* sharedDirty_name;
const char* privateClean_name;
const char* sharedClean_name;
};
static stat_fields stat_fields[_NUM_CORE_HEAP];
static stat_field_names stat_field_names[_NUM_CORE_HEAP] = {
{ "otherPss", "otherSwappablePss", "otherPrivateDirty", "otherSharedDirty", "otherPrivateClean", "otherSharedClean" },
{ "dalvikPss", "dalvikSwappablePss", "dalvikPrivateDirty", "dalvikSharedDirty", "dalvikPrivateClean", "dalvikSharedClean" },
{ "nativePss", "nativeSwappablePss", "nativePrivateDirty", "nativeSharedDirty", "nativePrivateClean", "nativeSharedClean" }
};
jfieldID otherStats_field;
static bool memtrackLoaded;
struct stats_t {
int pss;
int swappablePss;
int privateDirty;
int sharedDirty;
int privateClean;
int sharedClean;
};
#define BINDER_STATS "/proc/binder/stats"
static jlong android_os_Debug_getNativeHeapSize(JNIEnv *env, jobject clazz)
{
#ifdef HAVE_MALLOC_H
struct mallinfo info = mallinfo();
return (jlong) info.usmblks;
#else
return -1;
#endif
}
static jlong android_os_Debug_getNativeHeapAllocatedSize(JNIEnv *env, jobject clazz)
{
#ifdef HAVE_MALLOC_H
struct mallinfo info = mallinfo();
return (jlong) info.uordblks;
#else
return -1;
#endif
}
static jlong android_os_Debug_getNativeHeapFreeSize(JNIEnv *env, jobject clazz)
{
#ifdef HAVE_MALLOC_H
struct mallinfo info = mallinfo();
return (jlong) info.fordblks;
#else
return -1;
#endif
}
// Container used to retrieve graphics memory pss
struct graphics_memory_pss
{
int graphics;
int gl;
int other;
};
/*
* Uses libmemtrack to retrieve graphics memory that the process is using.
* Any graphics memory reported in /proc/pid/smaps is not included here.
*/
static int read_memtrack_memory(struct memtrack_proc* p, int pid, struct graphics_memory_pss* graphics_mem)
{
int err = memtrack_proc_get(p, pid);
if (err != 0) {
ALOGE("failed to get memory consumption info: %d", err);
return err;
}
ssize_t pss = memtrack_proc_graphics_pss(p);
if (pss < 0) {
ALOGE("failed to get graphics pss: %d", pss);
return pss;
}
graphics_mem->graphics = pss / 1024;
pss = memtrack_proc_gl_pss(p);
if (pss < 0) {
ALOGE("failed to get gl pss: %d", pss);
return pss;
}
graphics_mem->gl = pss / 1024;
pss = memtrack_proc_other_pss(p);
if (pss < 0) {
ALOGE("failed to get other pss: %d", pss);
return pss;
}
graphics_mem->other = pss / 1024;
return 0;
}
/*
* Retrieves the graphics memory that is unaccounted for in /proc/pid/smaps.
*/
static int read_memtrack_memory(int pid, struct graphics_memory_pss* graphics_mem)
{
if (!memtrackLoaded) {
return -1;
}
struct memtrack_proc* p = memtrack_proc_new();
if (p == NULL) {
ALOGE("failed to create memtrack_proc");
return -1;
}
int err = read_memtrack_memory(p, pid, graphics_mem);
memtrack_proc_destroy(p);
return err;
}
static void read_mapinfo(FILE *fp, stats_t* stats)
{
char line[1024];
int len, nameLen;
bool skip, done = false;
unsigned size = 0, resident = 0, pss = 0, swappable_pss = 0;
float sharing_proportion = 0.0;
unsigned shared_clean = 0, shared_dirty = 0;
unsigned private_clean = 0, private_dirty = 0;
bool is_swappable = false;
unsigned referenced = 0;
unsigned temp;
unsigned long int start;
unsigned long int end = 0;
unsigned long int prevEnd = 0;
char* name;
int name_pos;
int whichHeap = HEAP_UNKNOWN;
int subHeap = HEAP_UNKNOWN;
int prevHeap = HEAP_UNKNOWN;
if(fgets(line, sizeof(line), fp) == 0) return;
while (!done) {
prevHeap = whichHeap;
prevEnd = end;
whichHeap = HEAP_UNKNOWN;
subHeap = HEAP_UNKNOWN;
skip = false;
is_swappable = false;
len = strlen(line);
if (len < 1) return;
line[--len] = 0;
if (sscanf(line, "%lx-%lx %*s %*x %*x:%*x %*d%n", &start, &end, &name_pos) != 2) {
skip = true;
} else {
while (isspace(line[name_pos])) {
name_pos += 1;
}
name = line + name_pos;
nameLen = strlen(name);
if ((strstr(name, "[heap]") == name)) {
whichHeap = HEAP_NATIVE;
} else if (strncmp(name, "/dev/ashmem", 11) == 0) {
if (strncmp(name, "/dev/ashmem/dalvik-", 19) == 0) {
whichHeap = HEAP_DALVIK_OTHER;
if (strstr(name, "/dev/ashmem/dalvik-LinearAlloc") == name) {
subHeap = HEAP_DALVIK_LINEARALLOC;
} else if ((strstr(name, "/dev/ashmem/dalvik-mark") == name) ||
(strstr(name, "/dev/ashmem/dalvik-allocspace alloc space live-bitmap") == name) ||
(strstr(name, "/dev/ashmem/dalvik-allocspace alloc space mark-bitmap") == name) ||
(strstr(name, "/dev/ashmem/dalvik-card table") == name) ||
(strstr(name, "/dev/ashmem/dalvik-allocation stack") == name) ||
(strstr(name, "/dev/ashmem/dalvik-live stack") == name) ||
(strstr(name, "/dev/ashmem/dalvik-imagespace") == name) ||
(strstr(name, "/dev/ashmem/dalvik-bitmap") == name) ||
(strstr(name, "/dev/ashmem/dalvik-card-table") == name) ||
(strstr(name, "/dev/ashmem/dalvik-mark-stack") == name) ||
(strstr(name, "/dev/ashmem/dalvik-aux-structure") == name)) {
subHeap = HEAP_DALVIK_ACCOUNTING;
} else if (strstr(name, "/dev/ashmem/dalvik-large") == name) {
whichHeap = HEAP_DALVIK;
subHeap = HEAP_DALVIK_LARGE;
} else if (strstr(name, "/dev/ashmem/dalvik-jit-code-cache") == name) {
subHeap = HEAP_DALVIK_CODE_CACHE;
} else {
// This is the regular Dalvik heap.
whichHeap = HEAP_DALVIK;
subHeap = HEAP_DALVIK_NORMAL;
}
} else if (strncmp(name, "/dev/ashmem/CursorWindow", 24) == 0) {
whichHeap = HEAP_CURSOR;
} else if (strncmp(name, "/dev/ashmem/libc malloc", 23) == 0) {
whichHeap = HEAP_NATIVE;
} else {
whichHeap = HEAP_ASHMEM;
}
} else if (strncmp(name, "[anon:libc_malloc]", 18) == 0) {
whichHeap = HEAP_NATIVE;
} else if (strncmp(name, "[stack", 6) == 0) {
whichHeap = HEAP_STACK;
} else if (strncmp(name, "/dev/", 5) == 0) {
whichHeap = HEAP_UNKNOWN_DEV;
} else if (nameLen > 3 && strcmp(name+nameLen-3, ".so") == 0) {
whichHeap = HEAP_SO;
is_swappable = true;
} else if (nameLen > 4 && strcmp(name+nameLen-4, ".jar") == 0) {
whichHeap = HEAP_JAR;
is_swappable = true;
} else if (nameLen > 4 && strcmp(name+nameLen-4, ".apk") == 0) {
whichHeap = HEAP_APK;
is_swappable = true;
} else if (nameLen > 4 && strcmp(name+nameLen-4, ".ttf") == 0) {
whichHeap = HEAP_TTF;
is_swappable = true;
} else if ((nameLen > 4 && strcmp(name+nameLen-4, ".dex") == 0) ||
(nameLen > 5 && strcmp(name+nameLen-5, ".odex") == 0)) {
whichHeap = HEAP_DEX;
is_swappable = true;
} else if (nameLen > 4 && strcmp(name+nameLen-4, ".oat") == 0) {
whichHeap = HEAP_OAT;
is_swappable = true;
} else if (nameLen > 4 && strcmp(name+nameLen-4, ".art") == 0) {
whichHeap = HEAP_ART;
is_swappable = true;
} else if (strncmp(name, "[anon:", 6) == 0) {
whichHeap = HEAP_UNKNOWN;
} else if (nameLen > 0) {
whichHeap = HEAP_UNKNOWN_MAP;
} else if (start == prevEnd && prevHeap == HEAP_SO) {
// bss section of a shared library.
whichHeap = HEAP_SO;
}
}
//ALOGI("native=%d dalvik=%d sqlite=%d: %s\n", isNativeHeap, isDalvikHeap,
// isSqliteHeap, line);
while (true) {
if (fgets(line, 1024, fp) == 0) {
done = true;
break;
}
if (sscanf(line, "Size: %d kB", &temp) == 1) {
size = temp;
} else if (sscanf(line, "Rss: %d kB", &temp) == 1) {
resident = temp;
} else if (sscanf(line, "Pss: %d kB", &temp) == 1) {
pss = temp;
} else if (sscanf(line, "Shared_Clean: %d kB", &temp) == 1) {
shared_clean = temp;
} else if (sscanf(line, "Shared_Dirty: %d kB", &temp) == 1) {
shared_dirty = temp;
} else if (sscanf(line, "Private_Clean: %d kB", &temp) == 1) {
private_clean = temp;
} else if (sscanf(line, "Private_Dirty: %d kB", &temp) == 1) {
private_dirty = temp;
} else if (sscanf(line, "Referenced: %d kB", &temp) == 1) {
referenced = temp;
} else if (strlen(line) > 30 && line[8] == '-' && line[17] == ' ') {
// looks like a new mapping
// example: "10000000-10001000 ---p 10000000 00:00 0"
break;
}
}
if (!skip) {
if (is_swappable && (pss > 0)) {
sharing_proportion = 0.0;
if ((shared_clean > 0) || (shared_dirty > 0)) {
sharing_proportion = (pss - private_clean - private_dirty)/(shared_clean+shared_dirty);
}
swappable_pss = (sharing_proportion*shared_clean) + private_clean;
} else
swappable_pss = 0;
stats[whichHeap].pss += pss;
stats[whichHeap].swappablePss += swappable_pss;
stats[whichHeap].privateDirty += private_dirty;
stats[whichHeap].sharedDirty += shared_dirty;
stats[whichHeap].privateClean += private_clean;
stats[whichHeap].sharedClean += shared_clean;
if (whichHeap == HEAP_DALVIK || whichHeap == HEAP_DALVIK_OTHER) {
stats[subHeap].pss += pss;
stats[subHeap].swappablePss += swappable_pss;
stats[subHeap].privateDirty += private_dirty;
stats[subHeap].sharedDirty += shared_dirty;
stats[subHeap].privateClean += private_clean;
stats[subHeap].sharedClean += shared_clean;
}
}
}
}
static void load_maps(int pid, stats_t* stats)
{
char tmp[128];
FILE *fp;
sprintf(tmp, "/proc/%d/smaps", pid);
fp = fopen(tmp, "r");
if (fp == 0) return;
read_mapinfo(fp, stats);
fclose(fp);
}
static void android_os_Debug_getDirtyPagesPid(JNIEnv *env, jobject clazz,
jint pid, jobject object)
{
stats_t stats[_NUM_HEAP];
memset(&stats, 0, sizeof(stats));
load_maps(pid, stats);
struct graphics_memory_pss graphics_mem;
if (read_memtrack_memory(pid, &graphics_mem) == 0) {
stats[HEAP_GRAPHICS].pss = graphics_mem.graphics;
stats[HEAP_GRAPHICS].privateDirty = graphics_mem.graphics;
stats[HEAP_GL].pss = graphics_mem.gl;
stats[HEAP_GL].privateDirty = graphics_mem.gl;
stats[HEAP_OTHER_MEMTRACK].pss = graphics_mem.other;
stats[HEAP_OTHER_MEMTRACK].privateDirty = graphics_mem.other;
} else {
ALOGE("Failed to read gpu memory");
}
for (int i=_NUM_CORE_HEAP; i<_NUM_EXCLUSIVE_HEAP; i++) {
stats[HEAP_UNKNOWN].pss += stats[i].pss;
stats[HEAP_UNKNOWN].swappablePss += stats[i].swappablePss;
stats[HEAP_UNKNOWN].privateDirty += stats[i].privateDirty;
stats[HEAP_UNKNOWN].sharedDirty += stats[i].sharedDirty;
stats[HEAP_UNKNOWN].privateClean += stats[i].privateClean;
stats[HEAP_UNKNOWN].sharedClean += stats[i].sharedClean;
}
for (int i=0; i<_NUM_CORE_HEAP; i++) {
env->SetIntField(object, stat_fields[i].pss_field, stats[i].pss);
env->SetIntField(object, stat_fields[i].pssSwappable_field, stats[i].swappablePss);
env->SetIntField(object, stat_fields[i].privateDirty_field, stats[i].privateDirty);
env->SetIntField(object, stat_fields[i].sharedDirty_field, stats[i].sharedDirty);
env->SetIntField(object, stat_fields[i].privateClean_field, stats[i].privateClean);
env->SetIntField(object, stat_fields[i].sharedClean_field, stats[i].sharedClean);
}
jintArray otherIntArray = (jintArray)env->GetObjectField(object, otherStats_field);
jint* otherArray = (jint*)env->GetPrimitiveArrayCritical(otherIntArray, 0);
if (otherArray == NULL) {
return;
}
int j=0;
for (int i=_NUM_CORE_HEAP; i<_NUM_HEAP; i++) {
otherArray[j++] = stats[i].pss;
otherArray[j++] = stats[i].swappablePss;
otherArray[j++] = stats[i].privateDirty;
otherArray[j++] = stats[i].sharedDirty;
otherArray[j++] = stats[i].privateClean;
otherArray[j++] = stats[i].sharedClean;
}
env->ReleasePrimitiveArrayCritical(otherIntArray, otherArray, 0);
}
static void android_os_Debug_getDirtyPages(JNIEnv *env, jobject clazz, jobject object)
{
android_os_Debug_getDirtyPagesPid(env, clazz, getpid(), object);
}
static jlong android_os_Debug_getPssPid(JNIEnv *env, jobject clazz, jint pid, jlongArray outUss)
{
char line[1024];
jlong pss = 0;
jlong uss = 0;
unsigned temp;
char tmp[128];
FILE *fp;
struct graphics_memory_pss graphics_mem;
if (read_memtrack_memory(pid, &graphics_mem) == 0) {
pss = uss = graphics_mem.graphics + graphics_mem.gl + graphics_mem.other;
}
sprintf(tmp, "/proc/%d/smaps", pid);
fp = fopen(tmp, "r");
if (fp != 0) {
while (true) {
if (fgets(line, 1024, fp) == NULL) {
break;
}
if (line[0] == 'P') {
if (strncmp(line, "Pss:", 4) == 0) {
char* c = line + 4;
while (*c != 0 && (*c < '0' || *c > '9')) {
c++;
}
pss += atoi(c);
} else if (strncmp(line, "Private_Clean:", 14)
|| strncmp(line, "Private_Dirty:", 14)) {
char* c = line + 14;
while (*c != 0 && (*c < '0' || *c > '9')) {
c++;
}
uss += atoi(c);
}
}
}
fclose(fp);
}
if (outUss != NULL) {
if (env->GetArrayLength(outUss) >= 1) {
jlong* outUssArray = env->GetLongArrayElements(outUss, 0);
if (outUssArray != NULL) {
outUssArray[0] = uss;
}
env->ReleaseLongArrayElements(outUss, outUssArray, 0);
}
}
return pss;
}
static jlong android_os_Debug_getPss(JNIEnv *env, jobject clazz)
{
return android_os_Debug_getPssPid(env, clazz, getpid(), NULL);
}
enum {
MEMINFO_TOTAL,
MEMINFO_FREE,
MEMINFO_BUFFERS,
MEMINFO_CACHED,
MEMINFO_SHMEM,
MEMINFO_SLAB,
MEMINFO_SWAP_TOTAL,
MEMINFO_SWAP_FREE,
MEMINFO_ZRAM_TOTAL,
MEMINFO_COUNT
};
static void android_os_Debug_getMemInfo(JNIEnv *env, jobject clazz, jlongArray out)
{
char buffer[1024];
int numFound = 0;
if (out == NULL) {
jniThrowNullPointerException(env, "out == null");
return;
}
int fd = open("/proc/meminfo", O_RDONLY);
if (fd < 0) {
ALOGW("Unable to open /proc/meminfo: %s\n", strerror(errno));
return;
}
int len = read(fd, buffer, sizeof(buffer)-1);
close(fd);
if (len < 0) {
ALOGW("Empty /proc/meminfo");
return;
}
buffer[len] = 0;
static const char* const tags[] = {
"MemTotal:",
"MemFree:",
"Buffers:",
"Cached:",
"Shmem:",
"Slab:",
"SwapTotal:",
"SwapFree:",
NULL
};
static const int tagsLen[] = {
9,
8,
8,
7,
6,
5,
10,
9,
0
};
long mem[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
char* p = buffer;
while (*p && numFound < 8) {
int i = 0;
while (tags[i]) {
if (strncmp(p, tags[i], tagsLen[i]) == 0) {
p += tagsLen[i];
while (*p == ' ') p++;
char* num = p;
while (*p >= '0' && *p <= '9') p++;
if (*p != 0) {
*p = 0;
p++;
}
mem[i] = atoll(num);
numFound++;
break;
}
i++;
}
while (*p && *p != '\n') {
p++;
}
if (*p) p++;
}
fd = open("/sys/block/zram0/mem_used_total", O_RDONLY);
if (fd >= 0) {
len = read(fd, buffer, sizeof(buffer)-1);
close(fd);
if (len > 0) {
buffer[len] = 0;
mem[MEMINFO_ZRAM_TOTAL] = atoll(buffer);
}
}
int maxNum = env->GetArrayLength(out);
if (maxNum > MEMINFO_COUNT) {
maxNum = MEMINFO_COUNT;
}
jlong* outArray = env->GetLongArrayElements(out, 0);
if (outArray != NULL) {
for (int i=0; i<maxNum && tags[i]; i++) {
outArray[i] = mem[i];
}
}
env->ReleaseLongArrayElements(out, outArray, 0);
}
static jint read_binder_stat(const char* stat)
{
FILE* fp = fopen(BINDER_STATS, "r");
if (fp == NULL) {
return -1;
}
char line[1024];
char compare[128];
int len = snprintf(compare, 128, "proc %d", getpid());
// loop until we have the block that represents this process
do {
if (fgets(line, 1024, fp) == 0) {
return -1;
}
} while (strncmp(compare, line, len));
// now that we have this process, read until we find the stat that we are looking for
len = snprintf(compare, 128, " %s: ", stat);
do {
if (fgets(line, 1024, fp) == 0) {
return -1;
}
} while (strncmp(compare, line, len));
// we have the line, now increment the line ptr to the value
char* ptr = line + len;
return atoi(ptr);
}
static jint android_os_Debug_getBinderSentTransactions(JNIEnv *env, jobject clazz)
{
return read_binder_stat("bcTRANSACTION");
}
static jint android_os_getBinderReceivedTransactions(JNIEnv *env, jobject clazz)
{
return read_binder_stat("brTRANSACTION");
}
// these are implemented in android_util_Binder.cpp
jint android_os_Debug_getLocalObjectCount(JNIEnv* env, jobject clazz);
jint android_os_Debug_getProxyObjectCount(JNIEnv* env, jobject clazz);
jint android_os_Debug_getDeathObjectCount(JNIEnv* env, jobject clazz);
/* pulled out of bionic */
extern "C" void get_malloc_leak_info(uint8_t** info, size_t* overallSize,
size_t* infoSize, size_t* totalMemory, size_t* backtraceSize);
extern "C" void free_malloc_leak_info(uint8_t* info);
#define SIZE_FLAG_ZYGOTE_CHILD (1<<31)
#define BACKTRACE_SIZE 32
/*
* This is a qsort() callback.
*
* See dumpNativeHeap() for comments about the data format and sort order.
*/
static int compareHeapRecords(const void* vrec1, const void* vrec2)
{
const size_t* rec1 = (const size_t*) vrec1;
const size_t* rec2 = (const size_t*) vrec2;
size_t size1 = *rec1;
size_t size2 = *rec2;
if (size1 < size2) {
return 1;
} else if (size1 > size2) {
return -1;
}
intptr_t* bt1 = (intptr_t*)(rec1 + 2);
intptr_t* bt2 = (intptr_t*)(rec2 + 2);
for (size_t idx = 0; idx < BACKTRACE_SIZE; idx++) {
intptr_t addr1 = bt1[idx];
intptr_t addr2 = bt2[idx];
if (addr1 == addr2) {
if (addr1 == 0)
break;
continue;
}
if (addr1 < addr2) {
return -1;
} else if (addr1 > addr2) {
return 1;
}
}
return 0;
}
/*
* The get_malloc_leak_info() call returns an array of structs that
* look like this:
*
* size_t size
* size_t allocations
* intptr_t backtrace[32]
*
* "size" is the size of the allocation, "backtrace" is a fixed-size
* array of function pointers, and "allocations" is the number of
* allocations with the exact same size and backtrace.
*
* The entries are sorted by descending total size (i.e. size*allocations)
* then allocation count. For best results with "diff" we'd like to sort
* primarily by individual size then stack trace. Since the entries are
* fixed-size, and we're allowed (by the current implementation) to mangle
* them, we can do this in place.
*/
static void dumpNativeHeap(FILE* fp)
{
uint8_t* info = NULL;
size_t overallSize, infoSize, totalMemory, backtraceSize;
get_malloc_leak_info(&info, &overallSize, &infoSize, &totalMemory,
&backtraceSize);
if (info == NULL) {
fprintf(fp, "Native heap dump not available. To enable, run these"
" commands (requires root):\n");
fprintf(fp, "$ adb shell setprop libc.debug.malloc 1\n");
fprintf(fp, "$ adb shell stop\n");
fprintf(fp, "$ adb shell start\n");
return;
}
assert(infoSize != 0);
assert(overallSize % infoSize == 0);
fprintf(fp, "Android Native Heap Dump v1.0\n\n");
size_t recordCount = overallSize / infoSize;
fprintf(fp, "Total memory: %zu\n", totalMemory);
fprintf(fp, "Allocation records: %zd\n", recordCount);
if (backtraceSize != BACKTRACE_SIZE) {
fprintf(fp, "WARNING: mismatched backtrace sizes (%d vs. %d)\n",
backtraceSize, BACKTRACE_SIZE);
}
fprintf(fp, "\n");
/* re-sort the entries */
qsort(info, recordCount, infoSize, compareHeapRecords);
/* dump the entries to the file */
const uint8_t* ptr = info;
for (size_t idx = 0; idx < recordCount; idx++) {
size_t size = *(size_t*) ptr;
size_t allocations = *(size_t*) (ptr + sizeof(size_t));
intptr_t* backtrace = (intptr_t*) (ptr + sizeof(size_t) * 2);
fprintf(fp, "z %d sz %8zu num %4zu bt",
(size & SIZE_FLAG_ZYGOTE_CHILD) != 0,
size & ~SIZE_FLAG_ZYGOTE_CHILD,
allocations);
for (size_t bt = 0; bt < backtraceSize; bt++) {
if (backtrace[bt] == 0) {
break;
} else {
fprintf(fp, " %08x", backtrace[bt]);
}
}
fprintf(fp, "\n");
ptr += infoSize;
}
free_malloc_leak_info(info);
fprintf(fp, "MAPS\n");
const char* maps = "/proc/self/maps";
FILE* in = fopen(maps, "r");
if (in == NULL) {
fprintf(fp, "Could not open %s\n", maps);
return;
}
char buf[BUFSIZ];
while (size_t n = fread(buf, sizeof(char), BUFSIZ, in)) {
fwrite(buf, sizeof(char), n, fp);
}
fclose(in);
fprintf(fp, "END\n");
}
/*
* Dump the native heap, writing human-readable output to the specified
* file descriptor.
*/
static void android_os_Debug_dumpNativeHeap(JNIEnv* env, jobject clazz,
jobject fileDescriptor)
{
if (fileDescriptor == NULL) {
jniThrowNullPointerException(env, "fd == null");
return;
}
int origFd = jniGetFDFromFileDescriptor(env, fileDescriptor);
if (origFd < 0) {
jniThrowRuntimeException(env, "Invalid file descriptor");
return;
}
/* dup() the descriptor so we don't close the original with fclose() */
int fd = dup(origFd);
if (fd < 0) {
ALOGW("dup(%d) failed: %s\n", origFd, strerror(errno));
jniThrowRuntimeException(env, "dup() failed");
return;
}
FILE* fp = fdopen(fd, "w");
if (fp == NULL) {
ALOGW("fdopen(%d) failed: %s\n", fd, strerror(errno));
close(fd);
jniThrowRuntimeException(env, "fdopen() failed");
return;
}
ALOGD("Native heap dump starting...\n");
dumpNativeHeap(fp);
ALOGD("Native heap dump complete.\n");
fclose(fp);
}
static void android_os_Debug_dumpNativeBacktraceToFile(JNIEnv* env, jobject clazz,
jint pid, jstring fileName)
{
if (fileName == NULL) {
jniThrowNullPointerException(env, "file == null");
return;
}
const jchar* str = env->GetStringCritical(fileName, 0);
String8 fileName8;
if (str) {
fileName8 = String8(str, env->GetStringLength(fileName));
env->ReleaseStringCritical(fileName, str);
}
int fd = open(fileName8.string(), O_CREAT | O_WRONLY | O_NOFOLLOW, 0666); /* -rw-rw-rw- */
if (fd < 0) {
fprintf(stderr, "Can't open %s: %s\n", fileName8.string(), strerror(errno));
return;
}
if (lseek(fd, 0, SEEK_END) < 0) {
fprintf(stderr, "lseek: %s\n", strerror(errno));
} else {
dump_backtrace_to_file(pid, fd);
}
close(fd);
}
/*
* JNI registration.
*/
static JNINativeMethod gMethods[] = {
{ "getNativeHeapSize", "()J",
(void*) android_os_Debug_getNativeHeapSize },
{ "getNativeHeapAllocatedSize", "()J",
(void*) android_os_Debug_getNativeHeapAllocatedSize },
{ "getNativeHeapFreeSize", "()J",
(void*) android_os_Debug_getNativeHeapFreeSize },
{ "getMemoryInfo", "(Landroid/os/Debug$MemoryInfo;)V",
(void*) android_os_Debug_getDirtyPages },
{ "getMemoryInfo", "(ILandroid/os/Debug$MemoryInfo;)V",
(void*) android_os_Debug_getDirtyPagesPid },
{ "getPss", "()J",
(void*) android_os_Debug_getPss },
{ "getPss", "(I[J)J",
(void*) android_os_Debug_getPssPid },
{ "getMemInfo", "([J)V",
(void*) android_os_Debug_getMemInfo },
{ "dumpNativeHeap", "(Ljava/io/FileDescriptor;)V",
(void*) android_os_Debug_dumpNativeHeap },
{ "getBinderSentTransactions", "()I",
(void*) android_os_Debug_getBinderSentTransactions },
{ "getBinderReceivedTransactions", "()I",
(void*) android_os_getBinderReceivedTransactions },
{ "getBinderLocalObjectCount", "()I",
(void*)android_os_Debug_getLocalObjectCount },
{ "getBinderProxyObjectCount", "()I",
(void*)android_os_Debug_getProxyObjectCount },
{ "getBinderDeathObjectCount", "()I",
(void*)android_os_Debug_getDeathObjectCount },
{ "dumpNativeBacktraceToFile", "(ILjava/lang/String;)V",
(void*)android_os_Debug_dumpNativeBacktraceToFile },
};
int register_android_os_Debug(JNIEnv *env)
{
int err = memtrack_init();
if (err != 0) {
memtrackLoaded = false;
ALOGE("failed to load memtrack module: %d", err);
} else {
memtrackLoaded = true;
}
jclass clazz = env->FindClass("android/os/Debug$MemoryInfo");
// Sanity check the number of other statistics expected in Java matches here.
jfieldID numOtherStats_field = env->GetStaticFieldID(clazz, "NUM_OTHER_STATS", "I");
jint numOtherStats = env->GetStaticIntField(clazz, numOtherStats_field);
jfieldID numDvkStats_field = env->GetStaticFieldID(clazz, "NUM_DVK_STATS", "I");
jint numDvkStats = env->GetStaticIntField(clazz, numDvkStats_field);
int expectedNumOtherStats = _NUM_HEAP - _NUM_CORE_HEAP;
if ((numOtherStats + numDvkStats) != expectedNumOtherStats) {
jniThrowExceptionFmt(env, "java/lang/RuntimeException",
"android.os.Debug.Meminfo.NUM_OTHER_STATS+android.os.Debug.Meminfo.NUM_DVK_STATS=%d expected %d",
numOtherStats+numDvkStats, expectedNumOtherStats);
return JNI_ERR;
}
otherStats_field = env->GetFieldID(clazz, "otherStats", "[I");
for (int i=0; i<_NUM_CORE_HEAP; i++) {
stat_fields[i].pss_field =
env->GetFieldID(clazz, stat_field_names[i].pss_name, "I");
stat_fields[i].pssSwappable_field =
env->GetFieldID(clazz, stat_field_names[i].pssSwappable_name, "I");
stat_fields[i].privateDirty_field =
env->GetFieldID(clazz, stat_field_names[i].privateDirty_name, "I");
stat_fields[i].sharedDirty_field =
env->GetFieldID(clazz, stat_field_names[i].sharedDirty_name, "I");
stat_fields[i].privateClean_field =
env->GetFieldID(clazz, stat_field_names[i].privateClean_name, "I");
stat_fields[i].sharedClean_field =
env->GetFieldID(clazz, stat_field_names[i].sharedClean_name, "I");
}
return jniRegisterNativeMethods(env, "android/os/Debug", gMethods, NELEM(gMethods));
}
}; // namespace android