| /* |
| * 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 <atomic> |
| #include <iomanip> |
| #include <string> |
| |
| #include <android-base/stringprintf.h> |
| #include <android-base/unique_fd.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 <memtrack/memtrack.h> |
| #include <memunreachable/memunreachable.h> |
| #include "android_os_Debug.h" |
| |
| namespace android |
| { |
| |
| static inline UniqueFile MakeUniqueFile(const char* path, const char* mode) { |
| return UniqueFile(fopen(path, mode), safeFclose); |
| } |
| |
| 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; |
| }; |
| |
| enum pss_rollup_support { |
| PSS_ROLLUP_UNTRIED, |
| PSS_ROLLUP_SUPPORTED, |
| PSS_ROLLUP_UNSUPPORTED |
| }; |
| |
| static std::atomic<pss_rollup_support> g_pss_rollup_support; |
| |
| #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 read_mapinfo(FILE *fp, stats_t* stats, bool* foundSwapPss) |
| { |
| char line[1024]; |
| int len, nameLen; |
| bool skip, done = false; |
| |
| unsigned pss = 0, swappable_pss = 0, rss = 0; |
| float sharing_proportion = 0.0; |
| unsigned shared_clean = 0, shared_dirty = 0; |
| unsigned private_clean = 0, private_dirty = 0; |
| unsigned swapped_out = 0, swapped_out_pss = 0; |
| bool is_swappable = false; |
| 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; |
| |
| *foundSwapPss = false; |
| |
| 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); |
| // Trim the end of the line if it is " (deleted)". |
| const char* deleted_str = " (deleted)"; |
| if (nameLen > (int)strlen(deleted_str) && |
| strcmp(name+nameLen-strlen(deleted_str), deleted_str) == 0) { |
| nameLen -= strlen(deleted_str); |
| name[nameLen] = '\0'; |
| } |
| if ((strstr(name, "[heap]") == name)) { |
| whichHeap = HEAP_NATIVE; |
| } else if (strncmp(name, "[anon:libc_malloc]", 18) == 0) { |
| whichHeap = HEAP_NATIVE; |
| } else if (strncmp(name, "[stack", 6) == 0) { |
| whichHeap = HEAP_STACK; |
| } 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 && strstr(name, ".dex") != NULL) || |
| (nameLen > 5 && strcmp(name+nameLen-5, ".odex") == 0)) { |
| whichHeap = HEAP_DEX; |
| subHeap = HEAP_DEX_APP_DEX; |
| is_swappable = true; |
| } else if (nameLen > 5 && strcmp(name+nameLen-5, ".vdex") == 0) { |
| whichHeap = HEAP_DEX; |
| // Handle system@framework@boot* and system/framework/boot* |
| if (strstr(name, "@boot") != NULL || strstr(name, "/boot") != NULL) { |
| subHeap = HEAP_DEX_BOOT_VDEX; |
| } else { |
| subHeap = HEAP_DEX_APP_VDEX; |
| } |
| 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; |
| // Handle system@framework@boot* and system/framework/boot* |
| if (strstr(name, "@boot") != NULL || strstr(name, "/boot") != NULL) { |
| subHeap = HEAP_ART_BOOT; |
| } else { |
| subHeap = HEAP_ART_APP; |
| } |
| is_swappable = true; |
| } else if (strncmp(name, "/dev/", 5) == 0) { |
| whichHeap = HEAP_UNKNOWN_DEV; |
| if (strncmp(name, "/dev/kgsl-3d0", 13) == 0) { |
| whichHeap = HEAP_GL_DEV; |
| } else if (strncmp(name, "/dev/ashmem/CursorWindow", 24) == 0) { |
| whichHeap = HEAP_CURSOR; |
| } else if (strncmp(name, "/dev/ashmem", 11)) { |
| whichHeap = HEAP_ASHMEM; |
| } |
| } else if (strncmp(name, "[anon:", 6) == 0) { |
| whichHeap = HEAP_UNKNOWN; |
| if (strncmp(name, "[anon:dalvik-", 13) == 0) { |
| whichHeap = HEAP_DALVIK_OTHER; |
| if (strstr(name, "[anon:dalvik-LinearAlloc") == name) { |
| subHeap = HEAP_DALVIK_OTHER_LINEARALLOC; |
| } else if ((strstr(name, "[anon:dalvik-alloc space") == name) || |
| (strstr(name, "[anon:dalvik-main space") == name)) { |
| // This is the regular Dalvik heap. |
| whichHeap = HEAP_DALVIK; |
| subHeap = HEAP_DALVIK_NORMAL; |
| } else if (strstr(name, "[anon:dalvik-large object space") == name || |
| strstr(name, "[anon:dalvik-free list large object space") |
| == name) { |
| whichHeap = HEAP_DALVIK; |
| subHeap = HEAP_DALVIK_LARGE; |
| } else if (strstr(name, "[anon:dalvik-non moving space") == name) { |
| whichHeap = HEAP_DALVIK; |
| subHeap = HEAP_DALVIK_NON_MOVING; |
| } else if (strstr(name, "[anon:dalvik-zygote space") == name) { |
| whichHeap = HEAP_DALVIK; |
| subHeap = HEAP_DALVIK_ZYGOTE; |
| } else if (strstr(name, "[anon:dalvik-indirect ref") == name) { |
| subHeap = HEAP_DALVIK_OTHER_INDIRECT_REFERENCE_TABLE; |
| } else if (strstr(name, "[anon:dalvik-jit-code-cache") == name || |
| strstr(name, "[anon:dalvik-data-code-cache") == name) { |
| subHeap = HEAP_DALVIK_OTHER_CODE_CACHE; |
| } else if (strstr(name, "[anon:dalvik-CompilerMetadata") == name) { |
| subHeap = HEAP_DALVIK_OTHER_COMPILER_METADATA; |
| } else { |
| subHeap = HEAP_DALVIK_OTHER_ACCOUNTING; // Default to accounting. |
| } |
| } |
| } 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; |
| swapped_out_pss = 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) { |
| rss = 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 (line[0] == 'S' && sscanf(line, "SwapPss: %d kB", &temp) == 1) { |
| *foundSwapPss = true; |
| swapped_out_pss = 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].rss += rss; |
| 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; |
| stats[whichHeap].swappedOutPss += swapped_out_pss; |
| if (whichHeap == HEAP_DALVIK || whichHeap == HEAP_DALVIK_OTHER || |
| whichHeap == HEAP_DEX || whichHeap == HEAP_ART) { |
| stats[subHeap].pss += pss; |
| stats[subHeap].swappablePss += swappable_pss; |
| stats[subHeap].rss += rss; |
| 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; |
| stats[subHeap].swappedOutPss += swapped_out_pss; |
| } |
| } |
| } |
| } |
| |
| static void load_maps(int pid, stats_t* stats, bool* foundSwapPss) |
| { |
| *foundSwapPss = false; |
| |
| std::string smaps_path = base::StringPrintf("/proc/%d/smaps", pid); |
| UniqueFile fp = MakeUniqueFile(smaps_path.c_str(), "re"); |
| if (fp == nullptr) return; |
| |
| read_mapinfo(fp.get(), stats, foundSwapPss); |
| } |
| |
| 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); |
| } |
| |
| UniqueFile OpenSmapsOrRollup(int pid) |
| { |
| enum pss_rollup_support rollup_support = |
| g_pss_rollup_support.load(std::memory_order_relaxed); |
| if (rollup_support != PSS_ROLLUP_UNSUPPORTED) { |
| std::string smaps_rollup_path = |
| base::StringPrintf("/proc/%d/smaps_rollup", pid); |
| UniqueFile fp_rollup = MakeUniqueFile(smaps_rollup_path.c_str(), "re"); |
| if (fp_rollup == nullptr && errno != ENOENT) { |
| return fp_rollup; // Actual error, not just old kernel. |
| } |
| if (fp_rollup != nullptr) { |
| if (rollup_support == PSS_ROLLUP_UNTRIED) { |
| ALOGI("using rollup pss collection"); |
| g_pss_rollup_support.store(PSS_ROLLUP_SUPPORTED, |
| std::memory_order_relaxed); |
| } |
| return fp_rollup; |
| } |
| g_pss_rollup_support.store(PSS_ROLLUP_UNSUPPORTED, |
| std::memory_order_relaxed); |
| } |
| |
| std::string smaps_path = base::StringPrintf("/proc/%d/smaps", pid); |
| return MakeUniqueFile(smaps_path.c_str(), "re"); |
| } |
| |
| static jlong android_os_Debug_getPssPid(JNIEnv *env, jobject clazz, jint pid, |
| jlongArray outUssSwapPssRss, jlongArray outMemtrack) |
| { |
| char lineBuffer[1024]; |
| 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 = memtrack = graphics_mem.graphics + graphics_mem.gl + graphics_mem.other; |
| } |
| |
| { |
| UniqueFile fp = OpenSmapsOrRollup(pid); |
| |
| if (fp != nullptr) { |
| char* line; |
| |
| while (true) { |
| if (fgets(lineBuffer, sizeof (lineBuffer), fp.get()) == NULL) { |
| break; |
| } |
| line = lineBuffer; |
| |
| switch (line[0]) { |
| case '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) == 0 |
| || strncmp(line, "Private_Dirty:", 14) == 0) { |
| char* c = line + 14; |
| while (*c != 0 && (*c < '0' || *c > '9')) { |
| c++; |
| } |
| uss += atoi(c); |
| } |
| break; |
| case 'R': |
| if (strncmp(line, "Rss:", 4) == 0) { |
| char* c = line + 4; |
| while (*c != 0 && (*c < '0' || *c > '9')) { |
| c++; |
| } |
| rss += atoi(c); |
| } |
| break; |
| case 'S': |
| if (strncmp(line, "SwapPss:", 8) == 0) { |
| char* c = line + 8; |
| jlong lSwapPss; |
| while (*c != 0 && (*c < '0' || *c > '9')) { |
| c++; |
| } |
| lSwapPss = atoi(c); |
| swapPss += lSwapPss; |
| pss += lSwapPss; // Also in swap, those pages would be accounted as Pss without SWAP |
| } |
| break; |
| } |
| } |
| } |
| } |
| |
| 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); |
| } |
| |
| static long get_allocated_vmalloc_memory() { |
| char line[1024]; |
| // Ignored tags that don't actually consume memory (ie remappings) |
| static const char* const ignored_tags[] = { |
| "ioremap", |
| "map_lowmem", |
| "vm_map_ram", |
| NULL |
| }; |
| long size, vmalloc_allocated_size = 0; |
| |
| UniqueFile fp = MakeUniqueFile("/proc/vmallocinfo", "re"); |
| if (fp == nullptr) { |
| return 0; |
| } |
| |
| while (true) { |
| if (fgets(line, 1024, fp.get()) == NULL) { |
| break; |
| } |
| bool valid_line = true; |
| int i = 0; |
| while (ignored_tags[i]) { |
| if (strstr(line, ignored_tags[i]) != NULL) { |
| valid_line = false; |
| break; |
| } |
| i++; |
| } |
| if (valid_line && (sscanf(line, "%*x-%*x %ld", &size) == 1)) { |
| vmalloc_allocated_size += size; |
| } |
| } |
| return vmalloc_allocated_size; |
| } |
| |
| 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 long long get_zram_mem_used() |
| { |
| #define ZRAM_SYSFS "/sys/block/zram0/" |
| UniqueFile mm_stat_file = MakeUniqueFile(ZRAM_SYSFS "mm_stat", "re"); |
| if (mm_stat_file) { |
| long long mem_used_total = 0; |
| |
| int matched = fscanf(mm_stat_file.get(), "%*d %*d %lld %*d %*d %*d %*d", &mem_used_total); |
| if (matched != 1) |
| ALOGW("failed to parse " ZRAM_SYSFS "mm_stat"); |
| |
| return mem_used_total; |
| } |
| |
| UniqueFile mem_used_total_file = MakeUniqueFile(ZRAM_SYSFS "mem_used_total", "re"); |
| if (mem_used_total_file) { |
| long long mem_used_total = 0; |
| |
| int matched = fscanf(mem_used_total_file.get(), "%lld", &mem_used_total); |
| if (matched != 1) |
| ALOGW("failed to parse " ZRAM_SYSFS "mem_used_total"); |
| |
| return mem_used_total; |
| } |
| |
| return 0; |
| } |
| |
| static void android_os_Debug_getMemInfo(JNIEnv *env, jobject clazz, jlongArray out) |
| { |
| char buffer[4096]; |
| size_t numFound = 0; |
| |
| if (out == NULL) { |
| jniThrowNullPointerException(env, "out == null"); |
| return; |
| } |
| |
| int fd = open("/proc/meminfo", O_RDONLY | O_CLOEXEC); |
| |
| 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:", |
| "SReclaimable:", |
| "SUnreclaim:", |
| "SwapTotal:", |
| "SwapFree:", |
| "ZRam:", |
| "Mapped:", |
| "VmallocUsed:", |
| "PageTables:", |
| "KernelStack:", |
| NULL |
| }; |
| static const int tagsLen[] = { |
| 9, |
| 8, |
| 8, |
| 7, |
| 6, |
| 5, |
| 13, |
| 11, |
| 10, |
| 9, |
| 5, |
| 7, |
| 12, |
| 11, |
| 12, |
| 0 |
| }; |
| long mem[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; |
| |
| char* p = buffer; |
| while (*p && numFound < (sizeof(tagsLen) / sizeof(tagsLen[0]))) { |
| 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++; |
| } |
| |
| mem[MEMINFO_ZRAM_TOTAL] = get_zram_mem_used() / 1024; |
| // Recompute Vmalloc Used since the value in meminfo |
| // doesn't account for I/O remapping which doesn't use RAM. |
| mem[MEMINFO_VMALLOC_USED] = get_allocated_vmalloc_memory() / 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) |
| { |
| 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; |
| } |
| |
| /* pulled out of bionic */ |
| extern "C" void write_malloc_leak_info(FILE* fp); |
| |
| /* |
| * 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 |
| write_malloc_leak_info(fp.get()); |
| ALOGD("Native heap dump complete.\n"); |
| } |
| |
| /* |
| * 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) { |
| fprintf(stderr, "Can't open %s: %s\n", fileNameChars.c_str(), strerror(errno)); |
| return false; |
| } |
| |
| return (dump_backtrace_to_file_timeout(pid, dumpType, timeoutSecs, fd) == 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()); |
| } |
| |
| /* |
| * 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 }, |
| }; |
| |
| 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 |