/* * 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)