/* Copyright (C) 2016 The Android Open Source Project
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This file implements interfaces from the file jvmti . h . This implementation
* is licensed under the same terms as the file jvmti . h . The
* copyright and license information for the file jvmti . h follows .
*
* Copyright ( c ) 2003 , 2011 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation . Oracle designates this
* particular file as subject to the " Classpath " exception as provided
* by Oracle in the LICENSE file that accompanied this code .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
#define __BIONIC_DISABLE_MALLOC_USABLE_SIZE_FORTIFY_WARNINGS
#include "ti_allocator.h"
#if defined (__APPLE__)
// Apple doesn't have malloc.h. Just give this function a non-functional definition.
#define malloc_usable_size(P) 0
#else
#include <malloc.h>
#endif
#include <atomic>
#include "art_jvmti.h"
#include "base/pointer_size.h"
namespace openjdkjvmti {
std::atomic<jlong> AllocUtil::allocated;
jvmtiError AllocUtil::GetGlobalJvmtiAllocationState([[maybe_unused]] jvmtiEnv* env,
jlong* allocated_ptr) {
if (allocated_ptr == nullptr) {
return ERR(NULL_POINTER);
}
*allocated_ptr = allocated.load();
return OK;
}
jvmtiError AllocUtil::Allocate([[maybe_unused]] jvmtiEnv* env,
jlong size,
unsigned char ** mem_ptr) {
if (size < 0 ) {
return ERR(ILLEGAL_ARGUMENT);
} else if (size == 0 ) {
*mem_ptr = nullptr;
return OK;
}
*mem_ptr = AllocateImpl(size);
if (UNLIKELY(*mem_ptr == nullptr)) {
return ERR(OUT_OF_MEMORY);
}
return OK;
}
unsigned char * AllocUtil::AllocateImpl(jlong size) {
unsigned char * ret = size != 0 ? reinterpret_cast <unsigned char *>(malloc(size)) : nullptr;
if (LIKELY(ret != nullptr)) {
allocated += malloc_usable_size(ret);
}
return ret;
}
jvmtiError AllocUtil::Deallocate([[maybe_unused]] jvmtiEnv* env, unsigned char * mem) {
DeallocateImpl(mem);
return OK;
}
void AllocUtil::DeallocateImpl(unsigned char * mem) {
if (mem != nullptr) {
allocated -= malloc_usable_size(mem);
free(mem);
}
}
} // namespace openjdkjvmti
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¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-29)
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