| /* |
| * 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 <assert.h> |
| #include <ctype.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <inttypes.h> |
| #include <malloc.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/time.h> |
| #include <time.h> |
| #include <unistd.h> |
| |
| #include <iomanip> |
| #include <string> |
| #include <vector> |
| |
| #include <android-base/logging.h> |
| #include <bionic_malloc.h> |
| #include <debuggerd/client.h> |
| #include <log/log.h> |
| #include <utils/misc.h> |
| #include <utils/String8.h> |
| |
| #include <nativehelper/JNIHelp.h> |
| #include <nativehelper/ScopedUtfChars.h> |
| #include "jni.h" |
| #include <meminfo/procmeminfo.h> |
| #include <meminfo/sysmeminfo.h> |
| #include <memtrack/memtrack.h> |
| #include <memunreachable/memunreachable.h> |
| #include <android-base/strings.h> |
| #include "android_os_Debug.h" |
| |
| namespace android |
| { |
| |
| enum { |
| HEAP_UNKNOWN, |
| HEAP_DALVIK, |
| HEAP_NATIVE, |
| |
| HEAP_DALVIK_OTHER, |
| HEAP_STACK, |
| HEAP_CURSOR, |
| HEAP_ASHMEM, |
| HEAP_GL_DEV, |
| 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, |
| |
| // Dalvik extra sections (heap). |
| HEAP_DALVIK_NORMAL, |
| HEAP_DALVIK_LARGE, |
| HEAP_DALVIK_ZYGOTE, |
| HEAP_DALVIK_NON_MOVING, |
| |
| // Dalvik other extra sections. |
| HEAP_DALVIK_OTHER_LINEARALLOC, |
| HEAP_DALVIK_OTHER_ACCOUNTING, |
| HEAP_DALVIK_OTHER_CODE_CACHE, |
| HEAP_DALVIK_OTHER_COMPILER_METADATA, |
| HEAP_DALVIK_OTHER_INDIRECT_REFERENCE_TABLE, |
| |
| // Boot vdex / app dex / app vdex |
| HEAP_DEX_BOOT_VDEX, |
| HEAP_DEX_APP_DEX, |
| HEAP_DEX_APP_VDEX, |
| |
| // App art, boot art. |
| HEAP_ART_APP, |
| HEAP_ART_BOOT, |
| |
| _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 rss_field; |
| jfieldID privateDirty_field; |
| jfieldID sharedDirty_field; |
| jfieldID privateClean_field; |
| jfieldID sharedClean_field; |
| jfieldID swappedOut_field; |
| jfieldID swappedOutPss_field; |
| }; |
| |
| struct stat_field_names { |
| const char* pss_name; |
| const char* pssSwappable_name; |
| const char* rss_name; |
| const char* privateDirty_name; |
| const char* sharedDirty_name; |
| const char* privateClean_name; |
| const char* sharedClean_name; |
| const char* swappedOut_name; |
| const char* swappedOutPss_name; |
| }; |
| |
| static stat_fields stat_fields[_NUM_CORE_HEAP]; |
| |
| static stat_field_names stat_field_names[_NUM_CORE_HEAP] = { |
| { "otherPss", "otherSwappablePss", "otherRss", "otherPrivateDirty", "otherSharedDirty", |
| "otherPrivateClean", "otherSharedClean", "otherSwappedOut", "otherSwappedOutPss" }, |
| { "dalvikPss", "dalvikSwappablePss", "dalvikRss", "dalvikPrivateDirty", "dalvikSharedDirty", |
| "dalvikPrivateClean", "dalvikSharedClean", "dalvikSwappedOut", "dalvikSwappedOutPss" }, |
| { "nativePss", "nativeSwappablePss", "nativeRss", "nativePrivateDirty", "nativeSharedDirty", |
| "nativePrivateClean", "nativeSharedClean", "nativeSwappedOut", "nativeSwappedOutPss" } |
| }; |
| |
| jfieldID otherStats_field; |
| jfieldID hasSwappedOutPss_field; |
| |
| struct stats_t { |
| int pss; |
| int swappablePss; |
| int rss; |
| int privateDirty; |
| int sharedDirty; |
| int privateClean; |
| int sharedClean; |
| int swappedOut; |
| int swappedOutPss; |
| }; |
| |
| #define BINDER_STATS "/proc/binder/stats" |
| |
| static jlong android_os_Debug_getNativeHeapSize(JNIEnv *env, jobject clazz) |
| { |
| struct mallinfo info = mallinfo(); |
| return (jlong) info.usmblks; |
| } |
| |
| static jlong android_os_Debug_getNativeHeapAllocatedSize(JNIEnv *env, jobject clazz) |
| { |
| struct mallinfo info = mallinfo(); |
| return (jlong) info.uordblks; |
| } |
| |
| static jlong android_os_Debug_getNativeHeapFreeSize(JNIEnv *env, jobject clazz) |
| { |
| struct mallinfo info = mallinfo(); |
| return (jlong) info.fordblks; |
| } |
| |
| // 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) |
| { |
| 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 load_maps(int pid, stats_t* stats, bool* foundSwapPss) |
| { |
| *foundSwapPss = false; |
| uint64_t prev_end = 0; |
| int prev_heap = HEAP_UNKNOWN; |
| |
| std::string smaps_path = base::StringPrintf("/proc/%d/smaps", pid); |
| auto vma_scan = [&](const meminfo::Vma& vma) { |
| int which_heap = HEAP_UNKNOWN; |
| int sub_heap = HEAP_UNKNOWN; |
| bool is_swappable = false; |
| std::string name; |
| if (base::EndsWith(vma.name, " (deleted)")) { |
| name = vma.name.substr(0, vma.name.size() - strlen(" (deleted)")); |
| } else { |
| name = vma.name; |
| } |
| |
| uint32_t namesz = name.size(); |
| if (base::StartsWith(name, "[heap]")) { |
| which_heap = HEAP_NATIVE; |
| } else if (base::StartsWith(name, "[anon:libc_malloc]")) { |
| which_heap = HEAP_NATIVE; |
| } else if (base::StartsWith(name, "[stack")) { |
| which_heap = HEAP_STACK; |
| } else if (base::StartsWith(name, "[anon:stack_and_tls:")) { |
| which_heap = HEAP_STACK; |
| } else if (base::EndsWith(name, ".so")) { |
| which_heap = HEAP_SO; |
| is_swappable = true; |
| } else if (base::EndsWith(name, ".jar")) { |
| which_heap = HEAP_JAR; |
| is_swappable = true; |
| } else if (base::EndsWith(name, ".apk")) { |
| which_heap = HEAP_APK; |
| is_swappable = true; |
| } else if (base::EndsWith(name, ".ttf")) { |
| which_heap = HEAP_TTF; |
| is_swappable = true; |
| } else if ((base::EndsWith(name, ".odex")) || |
| (namesz > 4 && strstr(name.c_str(), ".dex") != nullptr)) { |
| which_heap = HEAP_DEX; |
| sub_heap = HEAP_DEX_APP_DEX; |
| is_swappable = true; |
| } else if (base::EndsWith(name, ".vdex")) { |
| which_heap = HEAP_DEX; |
| // Handle system@framework@boot and system/framework/boot |
| if ((strstr(name.c_str(), "@boot") != nullptr) || |
| (strstr(name.c_str(), "/boot"))) { |
| sub_heap = HEAP_DEX_BOOT_VDEX; |
| } else { |
| sub_heap = HEAP_DEX_APP_VDEX; |
| } |
| is_swappable = true; |
| } else if (base::EndsWith(name, ".oat")) { |
| which_heap = HEAP_OAT; |
| is_swappable = true; |
| } else if (base::EndsWith(name, ".art") || base::EndsWith(name, ".art]")) { |
| which_heap = HEAP_ART; |
| // Handle system@framework@boot* and system/framework/boot* |
| if ((strstr(name.c_str(), "@boot") != nullptr) || |
| (strstr(name.c_str(), "/boot"))) { |
| sub_heap = HEAP_ART_BOOT; |
| } else { |
| sub_heap = HEAP_ART_APP; |
| } |
| is_swappable = true; |
| } else if (base::StartsWith(name, "/dev/")) { |
| which_heap = HEAP_UNKNOWN_DEV; |
| if (base::StartsWith(name, "/dev/kgsl-3d0")) { |
| which_heap = HEAP_GL_DEV; |
| } else if (base::StartsWith(name, "/dev/ashmem/CursorWindow")) { |
| which_heap = HEAP_CURSOR; |
| } else if (base::StartsWith(name, "/dev/ashmem")) { |
| which_heap = HEAP_ASHMEM; |
| } |
| } else if (base::StartsWith(name, "[anon:")) { |
| which_heap = HEAP_UNKNOWN; |
| if (base::StartsWith(name, "[anon:dalvik-")) { |
| which_heap = HEAP_DALVIK_OTHER; |
| if (base::StartsWith(name, "[anon:dalvik-LinearAlloc")) { |
| sub_heap = HEAP_DALVIK_OTHER_LINEARALLOC; |
| } else if (base::StartsWith(name, "[anon:dalvik-alloc space") || |
| base::StartsWith(name, "[anon:dalvik-main space")) { |
| // This is the regular Dalvik heap. |
| which_heap = HEAP_DALVIK; |
| sub_heap = HEAP_DALVIK_NORMAL; |
| } else if (base::StartsWith(name, |
| "[anon:dalvik-large object space") || |
| base::StartsWith( |
| name, "[anon:dalvik-free list large object space")) { |
| which_heap = HEAP_DALVIK; |
| sub_heap = HEAP_DALVIK_LARGE; |
| } else if (base::StartsWith(name, "[anon:dalvik-non moving space")) { |
| which_heap = HEAP_DALVIK; |
| sub_heap = HEAP_DALVIK_NON_MOVING; |
| } else if (base::StartsWith(name, "[anon:dalvik-zygote space")) { |
| which_heap = HEAP_DALVIK; |
| sub_heap = HEAP_DALVIK_ZYGOTE; |
| } else if (base::StartsWith(name, "[anon:dalvik-indirect ref")) { |
| sub_heap = HEAP_DALVIK_OTHER_INDIRECT_REFERENCE_TABLE; |
| } else if (base::StartsWith(name, "[anon:dalvik-jit-code-cache") || |
| base::StartsWith(name, "[anon:dalvik-data-code-cache")) { |
| sub_heap = HEAP_DALVIK_OTHER_CODE_CACHE; |
| } else if (base::StartsWith(name, "[anon:dalvik-CompilerMetadata")) { |
| sub_heap = HEAP_DALVIK_OTHER_COMPILER_METADATA; |
| } else { |
| sub_heap = HEAP_DALVIK_OTHER_ACCOUNTING; // Default to accounting. |
| } |
| } |
| } else if (namesz > 0) { |
| which_heap = HEAP_UNKNOWN_MAP; |
| } else if (vma.start == prev_end && prev_heap == HEAP_SO) { |
| // bss section of a shared library |
| which_heap = HEAP_SO; |
| } |
| |
| prev_end = vma.end; |
| prev_heap = which_heap; |
| |
| const meminfo::MemUsage& usage = vma.usage; |
| if (usage.swap_pss > 0 && *foundSwapPss != true) { |
| *foundSwapPss = true; |
| } |
| |
| uint64_t swapable_pss = 0; |
| if (is_swappable && (usage.pss > 0)) { |
| float sharing_proportion = 0.0; |
| if ((usage.shared_clean > 0) || (usage.shared_dirty > 0)) { |
| sharing_proportion = (usage.pss - usage.uss) / (usage.shared_clean + usage.shared_dirty); |
| } |
| swapable_pss = (sharing_proportion * usage.shared_clean) + usage.private_clean; |
| } |
| |
| stats[which_heap].pss += usage.pss; |
| stats[which_heap].swappablePss += swapable_pss; |
| stats[which_heap].rss += usage.rss; |
| stats[which_heap].privateDirty += usage.private_dirty; |
| stats[which_heap].sharedDirty += usage.shared_dirty; |
| stats[which_heap].privateClean += usage.private_clean; |
| stats[which_heap].sharedClean += usage.shared_clean; |
| stats[which_heap].swappedOut += usage.swap; |
| stats[which_heap].swappedOutPss += usage.swap_pss; |
| if (which_heap == HEAP_DALVIK || which_heap == HEAP_DALVIK_OTHER || |
| which_heap == HEAP_DEX || which_heap == HEAP_ART) { |
| stats[sub_heap].pss += usage.pss; |
| stats[sub_heap].swappablePss += swapable_pss; |
| stats[sub_heap].rss += usage.rss; |
| stats[sub_heap].privateDirty += usage.private_dirty; |
| stats[sub_heap].sharedDirty += usage.shared_dirty; |
| stats[sub_heap].privateClean += usage.private_clean; |
| stats[sub_heap].sharedClean += usage.shared_clean; |
| stats[sub_heap].swappedOut += usage.swap; |
| stats[sub_heap].swappedOutPss += usage.swap_pss; |
| } |
| }; |
| |
| meminfo::ForEachVmaFromFile(smaps_path, vma_scan); |
| } |
| |
| static void android_os_Debug_getDirtyPagesPid(JNIEnv *env, jobject clazz, |
| jint pid, jobject object) |
| { |
| bool foundSwapPss; |
| stats_t stats[_NUM_HEAP]; |
| memset(&stats, 0, sizeof(stats)); |
| |
| load_maps(pid, stats, &foundSwapPss); |
| |
| 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_GRAPHICS].rss = graphics_mem.graphics; |
| stats[HEAP_GL].pss = graphics_mem.gl; |
| stats[HEAP_GL].privateDirty = graphics_mem.gl; |
| stats[HEAP_GL].rss = graphics_mem.gl; |
| stats[HEAP_OTHER_MEMTRACK].pss = graphics_mem.other; |
| stats[HEAP_OTHER_MEMTRACK].privateDirty = graphics_mem.other; |
| stats[HEAP_OTHER_MEMTRACK].rss = 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].rss += stats[i].rss; |
| 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; |
| stats[HEAP_UNKNOWN].swappedOutPss += stats[i].swappedOutPss; |
| } |
| |
| 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].rss_field, stats[i].rss); |
| 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); |
| env->SetIntField(object, stat_fields[i].swappedOutPss_field, stats[i].swappedOutPss); |
| } |
| |
| |
| env->SetBooleanField(object, hasSwappedOutPss_field, foundSwapPss); |
| 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].rss; |
| 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; |
| otherArray[j++] = stats[i].swappedOutPss; |
| } |
| |
| 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 outUssSwapPssRss, jlongArray outMemtrack) |
| { |
| jlong pss = 0; |
| jlong rss = 0; |
| jlong swapPss = 0; |
| jlong uss = 0; |
| jlong memtrack = 0; |
| |
| struct graphics_memory_pss graphics_mem; |
| if (read_memtrack_memory(pid, &graphics_mem) == 0) { |
| pss = uss = rss = memtrack = graphics_mem.graphics + graphics_mem.gl + graphics_mem.other; |
| } |
| |
| ::android::meminfo::ProcMemInfo proc_mem(pid); |
| ::android::meminfo::MemUsage stats; |
| if (proc_mem.SmapsOrRollup(&stats)) { |
| pss += stats.pss; |
| uss += stats.uss; |
| rss += stats.rss; |
| swapPss = stats.swap_pss; |
| pss += swapPss; // Also in swap, those pages would be accounted as Pss without SWAP |
| } |
| |
| if (outUssSwapPssRss != NULL) { |
| if (env->GetArrayLength(outUssSwapPssRss) >= 1) { |
| jlong* outUssSwapPssRssArray = env->GetLongArrayElements(outUssSwapPssRss, 0); |
| if (outUssSwapPssRssArray != NULL) { |
| outUssSwapPssRssArray[0] = uss; |
| if (env->GetArrayLength(outUssSwapPssRss) >= 2) { |
| outUssSwapPssRssArray[1] = swapPss; |
| } |
| if (env->GetArrayLength(outUssSwapPssRss) >= 3) { |
| outUssSwapPssRssArray[2] = rss; |
| } |
| } |
| env->ReleaseLongArrayElements(outUssSwapPssRss, outUssSwapPssRssArray, 0); |
| } |
| } |
| |
| if (outMemtrack != NULL) { |
| if (env->GetArrayLength(outMemtrack) >= 1) { |
| jlong* outMemtrackArray = env->GetLongArrayElements(outMemtrack, 0); |
| if (outMemtrackArray != NULL) { |
| outMemtrackArray[0] = memtrack; |
| } |
| env->ReleaseLongArrayElements(outMemtrack, outMemtrackArray, 0); |
| } |
| } |
| |
| return pss; |
| } |
| |
| static jlong android_os_Debug_getPss(JNIEnv *env, jobject clazz) |
| { |
| return android_os_Debug_getPssPid(env, clazz, getpid(), NULL, NULL); |
| } |
| |
| // The 1:1 mapping of MEMINFO_* enums here must match with the constants from |
| // Debug.java. |
| enum { |
| MEMINFO_TOTAL, |
| MEMINFO_FREE, |
| MEMINFO_BUFFERS, |
| MEMINFO_CACHED, |
| MEMINFO_SHMEM, |
| MEMINFO_SLAB, |
| MEMINFO_SLAB_RECLAIMABLE, |
| MEMINFO_SLAB_UNRECLAIMABLE, |
| MEMINFO_SWAP_TOTAL, |
| MEMINFO_SWAP_FREE, |
| MEMINFO_ZRAM_TOTAL, |
| MEMINFO_MAPPED, |
| MEMINFO_VMALLOC_USED, |
| MEMINFO_PAGE_TABLES, |
| MEMINFO_KERNEL_STACK, |
| MEMINFO_COUNT |
| }; |
| |
| static void android_os_Debug_getMemInfo(JNIEnv *env, jobject clazz, jlongArray out) |
| { |
| if (out == NULL) { |
| jniThrowNullPointerException(env, "out == null"); |
| return; |
| } |
| |
| int outLen = env->GetArrayLength(out); |
| if (outLen < MEMINFO_COUNT) { |
| jniThrowRuntimeException(env, "outLen < MEMINFO_COUNT"); |
| return; |
| } |
| |
| // Read system memory info including ZRAM. The values are stored in the vector |
| // in the same order as MEMINFO_* enum |
| std::vector<uint64_t> mem(MEMINFO_COUNT); |
| std::vector<std::string> tags(::android::meminfo::SysMemInfo::kDefaultSysMemInfoTags); |
| tags.insert(tags.begin() + MEMINFO_ZRAM_TOTAL, "Zram:"); |
| ::android::meminfo::SysMemInfo smi; |
| if (!smi.ReadMemInfo(tags, &mem)) { |
| jniThrowRuntimeException(env, "SysMemInfo read failed"); |
| return; |
| } |
| |
| jlong* outArray = env->GetLongArrayElements(out, 0); |
| if (outArray != NULL) { |
| outLen = MEMINFO_COUNT; |
| for (int i = 0; i < outLen; i++) { |
| if (i == MEMINFO_VMALLOC_USED && mem[i] == 0) { |
| outArray[i] = smi.ReadVmallocInfo() / 1024; |
| continue; |
| } |
| outArray[i] = mem[i]; |
| } |
| } |
| |
| env->ReleaseLongArrayElements(out, outArray, 0); |
| } |
| |
| static jint read_binder_stat(const char* stat) |
| { |
| UniqueFile fp = MakeUniqueFile(BINDER_STATS, "re"); |
| if (fp == nullptr) { |
| 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.get()) == 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.get()) == 0) { |
| 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); |
| 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); |
| |
| static bool openFile(JNIEnv* env, jobject fileDescriptor, UniqueFile& fp) |
| { |
| if (fileDescriptor == NULL) { |
| jniThrowNullPointerException(env, "fd == null"); |
| return false; |
| } |
| int origFd = jniGetFDFromFileDescriptor(env, fileDescriptor); |
| if (origFd < 0) { |
| jniThrowRuntimeException(env, "Invalid file descriptor"); |
| return false; |
| } |
| |
| /* dup() the descriptor so we don't close the original with fclose() */ |
| int fd = fcntl(origFd, F_DUPFD_CLOEXEC, 0); |
| if (fd < 0) { |
| ALOGW("dup(%d) failed: %s\n", origFd, strerror(errno)); |
| jniThrowRuntimeException(env, "dup() failed"); |
| return false; |
| } |
| |
| fp.reset(fdopen(fd, "w")); |
| if (fp == nullptr) { |
| ALOGW("fdopen(%d) failed: %s\n", fd, strerror(errno)); |
| close(fd); |
| jniThrowRuntimeException(env, "fdopen() failed"); |
| return false; |
| } |
| return true; |
| } |
| |
| /* |
| * Dump the native heap, writing human-readable output to the specified |
| * file descriptor. |
| */ |
| static void android_os_Debug_dumpNativeHeap(JNIEnv* env, jobject, |
| jobject fileDescriptor) |
| { |
| UniqueFile fp(nullptr, safeFclose); |
| if (!openFile(env, fileDescriptor, fp)) { |
| return; |
| } |
| |
| ALOGD("Native heap dump starting...\n"); |
| // Formatting of the native heap dump is handled by malloc debug itself. |
| // See https://android.googlesource.com/platform/bionic/+/master/libc/malloc_debug/README.md#backtrace-heap-dump-format |
| if (android_mallopt(M_WRITE_MALLOC_LEAK_INFO_TO_FILE, fp.get(), sizeof(FILE*))) { |
| ALOGD("Native heap dump complete.\n"); |
| } else { |
| PLOG(ERROR) << "Failed to write native heap dump to file"; |
| } |
| } |
| |
| /* |
| * Dump the native malloc info, writing xml output to the specified |
| * file descriptor. |
| */ |
| static void android_os_Debug_dumpNativeMallocInfo(JNIEnv* env, jobject, |
| jobject fileDescriptor) |
| { |
| UniqueFile fp(nullptr, safeFclose); |
| if (!openFile(env, fileDescriptor, fp)) { |
| return; |
| } |
| |
| malloc_info(0, fp.get()); |
| } |
| |
| static bool dumpTraces(JNIEnv* env, jint pid, jstring fileName, jint timeoutSecs, |
| DebuggerdDumpType dumpType) { |
| const ScopedUtfChars fileNameChars(env, fileName); |
| if (fileNameChars.c_str() == nullptr) { |
| return false; |
| } |
| |
| android::base::unique_fd fd(open(fileNameChars.c_str(), |
| O_CREAT | O_WRONLY | O_NOFOLLOW | O_CLOEXEC | O_APPEND, |
| 0666)); |
| if (fd < 0) { |
| PLOG(ERROR) << "Can't open " << fileNameChars.c_str(); |
| return false; |
| } |
| |
| int res = dump_backtrace_to_file_timeout(pid, dumpType, timeoutSecs, fd); |
| if (fdatasync(fd.get()) != 0) { |
| PLOG(ERROR) << "Failed flushing trace."; |
| } |
| return res == 0; |
| } |
| |
| static jboolean android_os_Debug_dumpJavaBacktraceToFileTimeout(JNIEnv* env, jobject clazz, |
| jint pid, jstring fileName, jint timeoutSecs) { |
| const bool ret = dumpTraces(env, pid, fileName, timeoutSecs, kDebuggerdJavaBacktrace); |
| return ret ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static jboolean android_os_Debug_dumpNativeBacktraceToFileTimeout(JNIEnv* env, jobject clazz, |
| jint pid, jstring fileName, jint timeoutSecs) { |
| const bool ret = dumpTraces(env, pid, fileName, timeoutSecs, kDebuggerdNativeBacktrace); |
| return ret ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static jstring android_os_Debug_getUnreachableMemory(JNIEnv* env, jobject clazz, |
| jint limit, jboolean contents) |
| { |
| std::string s = GetUnreachableMemoryString(contents, limit); |
| return env->NewStringUTF(s.c_str()); |
| } |
| |
| static jlong android_os_Debug_getFreeZramKb(JNIEnv* env, jobject clazz) { |
| |
| jlong zramFreeKb = 0; |
| |
| std::string status_path = android::base::StringPrintf("/proc/meminfo"); |
| UniqueFile file = MakeUniqueFile(status_path.c_str(), "re"); |
| |
| char line[256]; |
| while (file != nullptr && fgets(line, sizeof(line), file.get())) { |
| jlong v; |
| if (sscanf(line, "SwapFree: %" SCNd64 " kB", &v) == 1) { |
| zramFreeKb = v; |
| break; |
| } |
| } |
| |
| return zramFreeKb; |
| } |
| |
| /* |
| * JNI registration. |
| */ |
| |
| static const 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)J", |
| (void*) android_os_Debug_getPssPid }, |
| { "getMemInfo", "([J)V", |
| (void*) android_os_Debug_getMemInfo }, |
| { "dumpNativeHeap", "(Ljava/io/FileDescriptor;)V", |
| (void*) android_os_Debug_dumpNativeHeap }, |
| { "dumpNativeMallocInfo", "(Ljava/io/FileDescriptor;)V", |
| (void*) android_os_Debug_dumpNativeMallocInfo }, |
| { "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 }, |
| { "dumpJavaBacktraceToFileTimeout", "(ILjava/lang/String;I)Z", |
| (void*)android_os_Debug_dumpJavaBacktraceToFileTimeout }, |
| { "dumpNativeBacktraceToFileTimeout", "(ILjava/lang/String;I)Z", |
| (void*)android_os_Debug_dumpNativeBacktraceToFileTimeout }, |
| { "getUnreachableMemory", "(IZ)Ljava/lang/String;", |
| (void*)android_os_Debug_getUnreachableMemory }, |
| { "getZramFreeKb", "()J", |
| (void*)android_os_Debug_getFreeZramKb }, |
| }; |
| |
| int register_android_os_Debug(JNIEnv *env) |
| { |
| 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"); |
| hasSwappedOutPss_field = env->GetFieldID(clazz, "hasSwappedOutPss", "Z"); |
| |
| 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].rss_field = |
| env->GetFieldID(clazz, stat_field_names[i].rss_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"); |
| stat_fields[i].swappedOutPss_field = |
| env->GetFieldID(clazz, stat_field_names[i].swappedOutPss_name, "I"); |
| } |
| |
| return jniRegisterNativeMethods(env, "android/os/Debug", gMethods, NELEM(gMethods)); |
| } |
| |
| }; // namespace android |