| /* |
| * 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 <inttypes.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; |
| jfieldID swappedOut_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; |
| const char* swappedOut_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", "otherSwappedOut" }, |
| { "dalvikPss", "dalvikSwappablePss", "dalvikPrivateDirty", "dalvikSharedDirty", |
| "dalvikPrivateClean", "dalvikSharedClean", "dalvikSwappedOut" }, |
| { "nativePss", "nativeSwappablePss", "nativePrivateDirty", "nativeSharedDirty", |
| "nativePrivateClean", "nativeSharedClean", "nativeSwappedOut" } |
| }; |
| |
| jfieldID otherStats_field; |
| |
| static bool memtrackLoaded; |
| |
| struct stats_t { |
| int pss; |
| int swappablePss; |
| int privateDirty; |
| int sharedDirty; |
| int privateClean; |
| int sharedClean; |
| int swappedOut; |
| }; |
| |
| #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) { |
| ALOGW("failed to get memory consumption info: %d", err); |
| return err; |
| } |
| |
| ssize_t pss = memtrack_proc_graphics_pss(p); |
| if (pss < 0) { |
| ALOGW("failed to get graphics pss: %zd", pss); |
| return pss; |
| } |
| graphics_mem->graphics = pss / 1024; |
| |
| pss = memtrack_proc_gl_pss(p); |
| if (pss < 0) { |
| ALOGW("failed to get gl pss: %zd", pss); |
| return pss; |
| } |
| graphics_mem->gl = pss / 1024; |
| |
| pss = memtrack_proc_other_pss(p); |
| if (pss < 0) { |
| ALOGW("failed to get other pss: %zd", 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) { |
| ALOGW("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; |
| unsigned swapped_out = 0; |
| bool is_swappable = false; |
| unsigned referenced = 0; |
| unsigned temp; |
| |
| uint64_t start; |
| uint64_t end = 0; |
| uint64_t 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, "%" SCNx64 "-%" SCNx64 " %*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-alloc space") == name) || |
| (strstr(name, "/dev/ashmem/dalvik-main space") == name) || |
| (strstr(name, "/dev/ashmem/dalvik-non moving space") == name)) { |
| // This is the regular Dalvik heap. |
| whichHeap = HEAP_DALVIK; |
| subHeap = HEAP_DALVIK_NORMAL; |
| } else if (strstr(name, "/dev/ashmem/dalvik-large object space") == 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 { |
| subHeap = HEAP_DALVIK_ACCOUNTING; // Default to accounting. |
| } |
| } 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); |
| |
| shared_clean = 0; |
| shared_dirty = 0; |
| private_clean = 0; |
| private_dirty = 0; |
| swapped_out = 0; |
| |
| while (true) { |
| if (fgets(line, 1024, fp) == 0) { |
| done = true; |
| break; |
| } |
| |
| if (line[0] == 'S' && sscanf(line, "Size: %d kB", &temp) == 1) { |
| size = temp; |
| } else if (line[0] == 'R' && sscanf(line, "Rss: %d kB", &temp) == 1) { |
| resident = temp; |
| } else if (line[0] == 'P' && sscanf(line, "Pss: %d kB", &temp) == 1) { |
| pss = temp; |
| } else if (line[0] == 'S' && sscanf(line, "Shared_Clean: %d kB", &temp) == 1) { |
| shared_clean = temp; |
| } else if (line[0] == 'S' && sscanf(line, "Shared_Dirty: %d kB", &temp) == 1) { |
| shared_dirty = temp; |
| } else if (line[0] == 'P' && sscanf(line, "Private_Clean: %d kB", &temp) == 1) { |
| private_clean = temp; |
| } else if (line[0] == 'P' && sscanf(line, "Private_Dirty: %d kB", &temp) == 1) { |
| private_dirty = temp; |
| } else if (line[0] == 'R' && sscanf(line, "Referenced: %d kB", &temp) == 1) { |
| referenced = temp; |
| } else if (line[0] == 'S' && sscanf(line, "Swap: %d kB", &temp) == 1) { |
| swapped_out = temp; |
| } else if (sscanf(line, "%" SCNx64 "-%" SCNx64 " %*s %*x %*x:%*x %*d", &start, &end) == 2) { |
| // 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; |
| stats[whichHeap].swappedOut += swapped_out; |
| 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; |
| stats[subHeap].swappedOut += swapped_out; |
| } |
| } |
| } |
| } |
| |
| 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; |
| } |
| |
| 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; |
| stats[HEAP_UNKNOWN].swappedOut += stats[i].swappedOut; |
| } |
| |
| 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); |
| env->SetIntField(object, stat_fields[i].swappedOut_field, stats[i].swappedOut); |
| } |
| |
| |
| 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; |
| otherArray[j++] = stats[i].swappedOut; |
| } |
| |
| 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)/1024; |
| } |
| } |
| |
| 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; 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) { |
| fclose(fp); |
| 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) { |
| fclose(fp); |
| return -1; |
| } |
| } while (strncmp(compare, line, len)); |
| |
| // we have the line, now increment the line ptr to the value |
| char* ptr = line + len; |
| jint result = atoi(ptr); |
| fclose(fp); |
| return result; |
| } |
| |
| 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 (%zu 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 { |
| #ifdef __LP64__ |
| fprintf(fp, " %016" PRIxPTR, backtrace[bt]); |
| #else |
| fprintf(fp, " %08" PRIxPTR, backtrace[bt]); |
| #endif |
| } |
| } |
| 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"); |
| stat_fields[i].swappedOut_field = |
| env->GetFieldID(clazz, stat_field_names[i].swappedOut_name, "I"); |
| } |
| |
| return jniRegisterNativeMethods(env, "android/os/Debug", gMethods, NELEM(gMethods)); |
| } |
| |
| }; // namespace android |
