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- /* -*- mode:c; c-file-style:"k&r"; c-basic-offset: 4; tab-width:4; indent-tabs-mode:nil; mode:auto-fill; fill-column:78; -*- */
- /* vim: set ts=4 sw=4 et tw=78 fo=cqt wm=0: */
- /* Copyright (C) 2014 Stony Brook University
- This file is part of Graphene Library OS.
- Graphene Library OS is free software: you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public License
- as published by the Free Software Foundation, either version 3 of the
- License, or (at your option) any later version.
- Graphene Library OS 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 Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
- #include <pal_internal.h>
- #include <pal_security.h>
- #include <pal_error.h>
- #include <api.h>
- #include <assert.h>
- #include "enclave_ocalls.h"
- static PAL_LOCK malloc_lock = LOCK_INIT;
- static int pagesize = PRESET_PAGESIZE;
- #define system_lock() _DkSpinLock(&malloc_lock)
- #define system_unlock() _DkSpinUnlock(&malloc_lock)
- #define PAGE_SIZE pagesize
- static inline void * __malloc (int size)
- {
- void * addr = NULL;
- ocall_alloc_untrusted(size, &addr);
- return addr;
- }
- #define system_malloc(size) __malloc(size)
- static inline void __free (void * addr, int size)
- {
- ocall_unmap_untrusted(addr, size);
- }
- #define system_free(addr, size) __free(addr, size)
- #include "slabmgr.h"
- static SLAB_MGR untrusted_slabmgr = NULL;
- void init_untrusted_slab_mgr (int pagesize)
- {
- if (untrusted_slabmgr)
- return;
- untrusted_slabmgr = create_slab_mgr();
- if (!untrusted_slabmgr)
- init_fail(PAL_ERROR_NOMEM, "cannot initialize slab manager");
- }
- void * malloc_untrusted (int size)
- {
- return slab_alloc(untrusted_slabmgr, size);
- }
- void free_untrusted (void * ptr)
- {
- slab_free(untrusted_slabmgr, ptr);
- }
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