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66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
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/* Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc.
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Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
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On-Line Applications Research Corporation.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ansidecl.h>
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#include <stdlib.h>
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PTR __curbrk;
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PTR __rorig;
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PTR __rlimit;
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int
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DEFUN(__brk, (inaddr), PTR inaddr)
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{
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if ( ( (void *)inaddr > (void *)__rlimit ) ||
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( (void *)inaddr < (void *)__rorig ) )
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return -1;
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__curbrk = inaddr;
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return 0;
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}
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/* Initialization Code for Memory Allocation */
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PTR __C_heap_start;
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int __C_heap_size;
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#ifdef HAVE_GNU_LD
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static
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#endif
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void
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DEFUN(__NONE_set_memvals, (argc, argv, envp),
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int argc AND char **argv AND char **envp)
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{
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__rorig =
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__curbrk = __C_heap_start;
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__rlimit = __curbrk + __C_heap_size;
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(void) &__NONE_set_memvals; /* Avoid "defined but not used" warning. */
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}
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#ifdef HAVE_GNU_LD
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text_set_element (__libc_subinit, __NONE_set_memvals);
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#endif
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weak_alias (__brk, brk)
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