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/*
* Copyright (C) 2019 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.
*/
#include <malloc.h>
#include <stdint.h>
#include <stdio.h>
#include <unistd.h>
#include "Alloc.h"
#include "AllocParser.h"
#include "Pointers.h"
#include "Utils.h"
bool AllocDoesFree(const AllocEntry& entry) {
switch (entry.type) {
case MALLOC:
case CALLOC:
case MEMALIGN:
case THREAD_DONE:
return false;
case FREE:
return entry.ptr != 0;
case REALLOC:
return entry.u.old_ptr != 0;
}
}
static uint64_t MallocExecute(const AllocEntry& entry, Pointers* pointers) {
int pagesize = getpagesize();
uint64_t time_nsecs = Nanotime();
void* memory = malloc(entry.size);
MakeAllocationResident(memory, entry.size, pagesize);
time_nsecs = Nanotime() - time_nsecs;
pointers->Add(entry.ptr, memory);
return time_nsecs;
}
static uint64_t CallocExecute(const AllocEntry& entry, Pointers* pointers) {
int pagesize = getpagesize();
uint64_t time_nsecs = Nanotime();
void* memory = calloc(entry.u.n_elements, entry.size);
MakeAllocationResident(memory, entry.u.n_elements * entry.size, pagesize);
time_nsecs = Nanotime() - time_nsecs;
pointers->Add(entry.ptr, memory);
return time_nsecs;
}
static uint64_t ReallocExecute(const AllocEntry& entry, Pointers* pointers) {
void* old_memory = nullptr;
if (entry.u.old_ptr != 0) {
old_memory = pointers->Remove(entry.u.old_ptr);
}
int pagesize = getpagesize();
uint64_t time_nsecs = Nanotime();
void* memory = realloc(old_memory, entry.size);
MakeAllocationResident(memory, entry.size, pagesize);
time_nsecs = Nanotime() - time_nsecs;
pointers->Add(entry.ptr, memory);
return time_nsecs;
}
static uint64_t MemalignExecute(const AllocEntry& entry, Pointers* pointers) {
int pagesize = getpagesize();
uint64_t time_nsecs = Nanotime();
void* memory = memalign(entry.u.align, entry.size);
MakeAllocationResident(memory, entry.size, pagesize);
time_nsecs = Nanotime() - time_nsecs;
pointers->Add(entry.ptr, memory);
return time_nsecs;
}
static uint64_t FreeExecute(const AllocEntry& entry, Pointers* pointers) {
if (entry.ptr == 0) {
return 0;
}
void* memory = pointers->Remove(entry.ptr);
uint64_t time_nsecs = Nanotime();
free(memory);
return Nanotime() - time_nsecs;
}
uint64_t AllocExecute(const AllocEntry& entry, Pointers* pointers) {
switch (entry.type) {
case MALLOC:
return MallocExecute(entry, pointers);
case CALLOC:
return CallocExecute(entry, pointers);
case REALLOC:
return ReallocExecute(entry, pointers);
case MEMALIGN:
return MemalignExecute(entry, pointers);
case FREE:
return FreeExecute(entry, pointers);
default:
return 0;
}
}
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