mirror of https://github.com/dzavalishin/oskit/
66 lines
1.8 KiB
C
Executable File
66 lines
1.8 KiB
C
Executable File
/*
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* Copyright (c) 2000 University of Utah and the Flux Group.
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* All rights reserved.
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*
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* This file is part of the Flux OSKit. The OSKit is free software, also known
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* as "open source;" you can redistribute it and/or modify it under the terms
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* of the GNU General Public License (GPL), version 2, as published by the Free
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* Software Foundation (FSF). To explore alternate licensing terms, contact
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* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
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*
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* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
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* received a copy of the GPL along with the OSKit; see the file COPYING. If
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* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
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*/
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#include <oskit/com/mem.h>
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#include <oskit/lmm.h>
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#include <stdlib.h>
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#include "native.h"
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static struct lmm_region allmem;
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/**
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* Setup the malloc_lmm for OSKit/UNIX. Called from _start().
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*/
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void
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oskitunix_mem_init(void)
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{
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extern struct lmm malloc_lmm;
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lmm_add_region(&malloc_lmm, &allmem,
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0x0, 0xffffffff,
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/*flags?*/ 0,
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/*priority?*/ 0);
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}
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/*
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* Override the default clientos morecore implementation.
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*
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* Morecore takes OSKIT_MEM_* flags.
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* We assert that the flags are zero because we don't know how
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* to handle them on Unix (and it doesn't seem that we need to know).
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*/
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void *
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oskit_mem_morecore(oskit_size_t size, int flags)
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{
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void* more;
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const int MINALLOC = 8*1024;
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#ifdef DEBUG
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extern struct lmm malloc_lmm;
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assert(malloc_lmm.regions != NULL);
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#endif
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assert(flags == 0x0);
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if (size < MINALLOC)
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size = MINALLOC;
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more = NATIVEOS(sbrk)(size);
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return more;
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}
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