Roll base to 9e74307b276b2f9988005c0e97e85ee222586f79.

third_party/tcmalloc/chromium/src/heap-profiler.cc

 // Copyright (c) 2005, Google Inc.
 // All rights reserved.
 // 
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 // 
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 50 matching lines @@
 #include "base/basictypes.h"   // for PRId64, among other things
 #include "base/googleinit.h"
 #include "base/commandlineflags.h"
 #include "malloc_hook-inl.h"
 #include "tcmalloc_guard.h"
 #include <gperftools/malloc_hook.h>
 #include <gperftools/malloc_extension.h>
 #include "base/spinlock.h"
 #include "base/low_level_alloc.h"
 #include "base/sysinfo.h"      // for GetUniquePathFromEnv()
-#include "deep-heap-profile.h"
 #include "heap-profile-table.h"
 #include "memory_region_map.h"
 
 
 #ifndef PATH_MAX
 #ifdef MAXPATHLEN
 #define PATH_MAX        MAXPATHLEN
 #else
 #define PATH_MAX        4096         // seems conservative for max filename len!
 #endif
 #endif
 
-#if defined(__ANDROID__) || defined(ANDROID)
-// On android, there are no environment variables.
-// Instead, we use system properties, set via:
-//   adb shell setprop prop_name prop_value
-// From <sys/system_properties.h>,
-//   PROP_NAME_MAX   32
-//   PROP_VALUE_MAX  92
-#define HEAPPROFILE "heapprof"
-#define HEAP_PROFILE_ALLOCATION_INTERVAL "heapprof.allocation_interval"
-#define HEAP_PROFILE_DEALLOCATION_INTERVAL "heapprof.deallocation_interval"
-#define HEAP_PROFILE_INUSE_INTERVAL "heapprof.inuse_interval"
-#define HEAP_PROFILE_TIME_INTERVAL "heapprof.time_interval"
-#define HEAP_PROFILE_MMAP_LOG "heapprof.mmap_log"
-#define HEAP_PROFILE_MMAP "heapprof.mmap"
-#define HEAP_PROFILE_ONLY_MMAP "heapprof.only_mmap"
-#define DEEP_HEAP_PROFILE "heapprof.deep_heap_profile"
-#define DEEP_HEAP_PROFILE_PAGEFRAME "heapprof.deep.pageframe"
-#define HEAP_PROFILE_TYPE_STATISTICS "heapprof.type_statistics"
-#else  // defined(__ANDROID__) || defined(ANDROID)
-#define HEAPPROFILE "HEAPPROFILE"
-#define HEAP_PROFILE_ALLOCATION_INTERVAL "HEAP_PROFILE_ALLOCATION_INTERVAL"
-#define HEAP_PROFILE_DEALLOCATION_INTERVAL "HEAP_PROFILE_DEALLOCATION_INTERVAL"
-#define HEAP_PROFILE_INUSE_INTERVAL "HEAP_PROFILE_INUSE_INTERVAL"
-#define HEAP_PROFILE_TIME_INTERVAL "HEAP_PROFILE_TIME_INTERVAL"
-#define HEAP_PROFILE_MMAP_LOG "HEAP_PROFILE_MMAP_LOG"
-#define HEAP_PROFILE_MMAP "HEAP_PROFILE_MMAP"
-#define HEAP_PROFILE_ONLY_MMAP "HEAP_PROFILE_ONLY_MMAP"
-#define DEEP_HEAP_PROFILE "DEEP_HEAP_PROFILE"
-#define DEEP_HEAP_PROFILE_PAGEFRAME "DEEP_HEAP_PROFILE_PAGEFRAME"
-#define HEAP_PROFILE_TYPE_STATISTICS "HEAP_PROFILE_TYPE_STATISTICS"
-#endif  // defined(__ANDROID__) || defined(ANDROID)
-
 using STL_NAMESPACE::string;
 using STL_NAMESPACE::sort;
 
 //----------------------------------------------------------------------
 // Flags that control heap-profiling
 //
 // The thread-safety of the profiler depends on these being immutable
 // after main starts, so don't change them.
 //----------------------------------------------------------------------
 
@@ skipping 21 matching lines @@
 DEFINE_bool(mmap_log,
             EnvToBool(HEAP_PROFILE_MMAP_LOG, false),
             "Should mmap/munmap calls be logged?");
 DEFINE_bool(mmap_profile,
             EnvToBool(HEAP_PROFILE_MMAP, false),
             "If heap-profiling is on, also profile mmap, mremap, and sbrk)");
 DEFINE_bool(only_mmap_profile,
             EnvToBool(HEAP_PROFILE_ONLY_MMAP, false),
             "If heap-profiling is on, only profile mmap, mremap, and sbrk; "
             "do not profile malloc/new/etc");
-DEFINE_bool(deep_heap_profile,
-            EnvToBool(DEEP_HEAP_PROFILE, false),
-            "If heap-profiling is on, profile deeper (Linux and Android)");
-DEFINE_int32(deep_heap_profile_pageframe,
-             EnvToInt(DEEP_HEAP_PROFILE_PAGEFRAME, 0),
-             "Needs deeper profile. If 1, dump page frame numbers (PFNs). "
-             "If 2, dump page counts (/proc/kpagecount) with PFNs.");
-#if defined(TYPE_PROFILING)
-DEFINE_bool(heap_profile_type_statistics,
-            EnvToBool(HEAP_PROFILE_TYPE_STATISTICS, false),
-            "If heap-profiling is on, dump type statistics.");
-#endif  // defined(TYPE_PROFILING)
-
-
 //----------------------------------------------------------------------
 // Locking
 //----------------------------------------------------------------------
 
 // A pthread_mutex has way too much lock contention to be used here.
 //
 // I would like to use Mutex, but it can call malloc(),
 // which can cause us to fall into an infinite recursion.
 //
 // So we use a simple spinlock.
@@ skipping 32 matching lines @@
 static bool  dumping = false;         // Dumping status to prevent recursion
 static char* filename_prefix = NULL;  // Prefix used for profile file names
                                       // (NULL if no need for dumping yet)
 static int   dump_count = 0;          // How many dumps so far
 static int64 last_dump_alloc = 0;     // alloc_size when did we last dump
 static int64 last_dump_free = 0;      // free_size when did we last dump
 static int64 high_water_mark = 0;     // In-use-bytes at last high-water dump
 static int64 last_dump_time = 0;      // The time of the last dump
 
 static HeapProfileTable* heap_profile = NULL;  // the heap profile table
-static DeepHeapProfile* deep_profile = NULL;  // deep memory profiler
 
 // Callback to generate a stack trace for an allocation. May be overriden
 // by an application to provide its own pseudo-stacks.
 static StackGeneratorFunction stack_generator_function =
     HeapProfileTable::GetCallerStackTrace;
 
 //----------------------------------------------------------------------
 // Profile generation
 //----------------------------------------------------------------------
 
@@ skipping 60 matching lines @@
     return;
   }
 
   // This case may be impossible, but it's best to be safe.
   // It's safe to use the global buffer: we're protected by heap_lock.
   if (global_profiler_buffer == NULL) {
     global_profiler_buffer =
         reinterpret_cast<char*>(ProfilerMalloc(kProfileBufferSize));
   }
 
-  if (deep_profile) {
-    deep_profile->DumpOrderedProfile(reason, global_profiler_buffer,
-                                     kProfileBufferSize, fd);
-  } else {
-    char* profile = DoGetHeapProfileLocked(global_profiler_buffer,
-                                           kProfileBufferSize);
-    RawWrite(fd, profile, strlen(profile));
-  }
+  char* profile =
+      DoGetHeapProfileLocked(global_profiler_buffer, kProfileBufferSize);
+  RawWrite(fd, profile, strlen(profile));
   RawClose(fd);
 
-#if defined(TYPE_PROFILING)
-  if (FLAGS_heap_profile_type_statistics) {
-    snprintf(file_name, sizeof(file_name), "%s.%05d.%04d.type",
-             filename_prefix, getpid(), dump_count);
-    RAW_VLOG(0, "Dumping type statistics to %s", file_name);
-    heap_profile->DumpTypeStatistics(file_name);
-  }
-#endif  // defined(TYPE_PROFILING)
-
   dumping = false;
 }
 
 //----------------------------------------------------------------------
 // Profile collection
 //----------------------------------------------------------------------
 
 // Dump a profile after either an allocation or deallocation, if
 // the memory use has changed enough since the last dump.
 static void MaybeDumpProfileLocked() {
@@ skipping 189 matching lines @@
       reinterpret_cast<char*>(ProfilerMalloc(kProfileBufferSize));
 
   heap_profile = new(ProfilerMalloc(sizeof(HeapProfileTable)))
       HeapProfileTable(ProfilerMalloc, ProfilerFree, FLAGS_mmap_profile);
 
   last_dump_alloc = 0;
   last_dump_free = 0;
   high_water_mark = 0;
   last_dump_time = 0;
 
-  if (FLAGS_deep_heap_profile) {
-    // Initialize deep memory profiler
-    RAW_VLOG(0, "[%d] Starting a deep memory profiler", getpid());
-    deep_profile = new(ProfilerMalloc(sizeof(DeepHeapProfile)))
-        DeepHeapProfile(heap_profile, prefix, DeepHeapProfile::PageFrameType(
-            FLAGS_deep_heap_profile_pageframe));
-  }
-
   // We do not reset dump_count so if the user does a sequence of
   // HeapProfilerStart/HeapProfileStop, we will get a continuous
   // sequence of profiles.
 
   if (FLAGS_only_mmap_profile == false) {
     // Now set the hooks that capture new/delete and malloc/free.
     RAW_CHECK(MallocHook::AddNewHook(&NewHook), "");
     RAW_CHECK(MallocHook::AddDeleteHook(&DeleteHook), "");
   }
 
@@ skipping 41 matching lines @@
     RAW_CHECK(MallocHook::RemoveDeleteHook(&DeleteHook), "");
   }
   if (FLAGS_mmap_log) {
     // Restore mmap/sbrk hooks, checking that our hooks were set:
     RAW_CHECK(MallocHook::RemoveMmapHook(&MmapHook), "");
     RAW_CHECK(MallocHook::RemoveMremapHook(&MremapHook), "");
     RAW_CHECK(MallocHook::RemoveSbrkHook(&SbrkHook), "");
     RAW_CHECK(MallocHook::RemoveMunmapHook(&MunmapHook), "");
   }
 
-  if (deep_profile) {
-    // free deep memory profiler
-    deep_profile->~DeepHeapProfile();
-    ProfilerFree(deep_profile);
-    deep_profile = NULL;
-  }
-
   // free profile
   heap_profile->~HeapProfileTable();
   ProfilerFree(heap_profile);
   heap_profile = NULL;
 
   // free output-buffer memory
   ProfilerFree(global_profiler_buffer);
 
   // free prefix
   ProfilerFree(filename_prefix);
@@ skipping 69 matching lines @@
 // class used for finalization -- dumps the heap-profile at program exit
 struct HeapProfileEndWriter {
   ~HeapProfileEndWriter() { HeapProfilerDump("Exiting"); }
 };
 
 // We want to make sure tcmalloc is up and running before starting the profiler
 static const TCMallocGuard tcmalloc_initializer;
 REGISTER_MODULE_INITIALIZER(heapprofiler, HeapProfilerInit());
 static HeapProfileEndWriter heap_profile_end_writer;
 #endif   // defined(ENABLE_PROFILING)