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/*
* Port of uClibc for TMS320C6000 DSP architecture
* Copyright (C) 2004 Texas Instruments Incorporated
* Author of TMS320C6000 port: Aurelien Jacquiot
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program 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 Library General Public License
* for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this program; see the file COPYING.LIB. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <unistd.h>
#include <sys/syscall.h>
#include <errno.h>
libc_hidden_proto(brk)
/* This must be initialized data because commons can't have aliases. */
void * __curbrk attribute_hidden = 0;
int brk (void *addr)
{
void *newbrk;
__asm__ __volatile__ ( \
"mv .d1 %2, A4\n\t" \
"mvk .s2 %1, B0\n\t" \
"swe\n\t" \
"nop\n\t" \
"mv .d2 B0, %0" \
: "=b" (newbrk) \
: "i" (__NR_brk), \
"a" (addr) \
: "memory", "cc", "B0", "A4"); \
__curbrk = newbrk;
if (newbrk < addr) {
__set_errno (ENOMEM);
return -1;
}
return 0;
}
libc_hidden_def(brk)
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