From 124ec188720b6bdea85ade49e7ea195161b12fce Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sat, 5 Jan 2008 10:05:27 +0000 Subject: Chris Zankel writes: The following patches add support for the Xtensa processor architecture to uClibc. They are based on a recent SVN checkout (12/05/2007). The first patch (attached to this post) adds Xtensa support to various shared configuration and make files. The following patches then include the Xtensa specific files and directories. I welcome any feedback and would appreciate it if you could include the patches into the mainline tree. I am certainly committed to maintain the port. Bob Wilson was kind enough to review the patches. Some notes about the architecture: Xtensa is a configurable and extensible processor architecture developed by Tensilica. For more information, please visit: www.linux-xtensa.org. --- libc/sysdeps/linux/xtensa/brk.c | 43 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 libc/sysdeps/linux/xtensa/brk.c (limited to 'libc/sysdeps/linux/xtensa/brk.c') diff --git a/libc/sysdeps/linux/xtensa/brk.c b/libc/sysdeps/linux/xtensa/brk.c new file mode 100644 index 000000000..51f610b70 --- /dev/null +++ b/libc/sysdeps/linux/xtensa/brk.c @@ -0,0 +1,43 @@ +/* brk system call for Linux/Xtensa. + Copyright (C) 1996, 1997, 2005, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library 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 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 the GNU C Library; if not, write to the Free + Software Foundation, Inc., 51 Franklin Street - Fifth Floor, + Boston, MA 02110-1301, USA. */ + +#include +#include +#include + +/* This must be initialized data because commons can't have aliases. */ +void *__curbrk attribute_hidden = 0; + +libc_hidden_proto(brk) +int +brk (void *addr) +{ + void *newbrk; + + __curbrk = newbrk = (void *) INLINE_SYSCALL (brk, 1, addr); + + if (newbrk < addr) + { + __set_errno (ENOMEM); + return -1; + } + + return 0; +} +libc_hidden_def(brk) -- cgit v1.2.3