diff options
author | Waldemar Brodkorb <wbx@openadk.org> | 2016-04-21 01:25:29 +0200 |
---|---|---|
committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2016-06-30 03:24:42 +0200 |
commit | ee92c0fe5c1b9d59508273916e2c9a75b68dbc13 (patch) | |
tree | 65a22258b12f84325910fc2ad47e2b02696ef593 /libc/sysdeps/linux/nds32/bits/uClibc_page.h | |
parent | dd46699e46decb7273f44dc2cbf307f096dc39e8 (diff) |
nds32: add support for new architecture
Add support for Andes Technology NDS32 architecture.
See here http://www.andestech.com/en/index/index.htm for more
informaton. Verification of the port from an older uClibc
port was done on a sponsored AG101p board.
The testsuite only has 5 errors, three are related to
an existing bug in dlclose() with LT.old, also happening
on cris32 and m68k.
Failures to fallocate/posix_fallocate are unresolved.
Thanks to Andes Technology sponsoring the hardware and
being very helpful while doing the uClibc-ng porting.
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
Diffstat (limited to 'libc/sysdeps/linux/nds32/bits/uClibc_page.h')
-rw-r--r-- | libc/sysdeps/linux/nds32/bits/uClibc_page.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/nds32/bits/uClibc_page.h b/libc/sysdeps/linux/nds32/bits/uClibc_page.h new file mode 100644 index 000000000..0438493db --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/uClibc_page.h @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#ifndef _UCLIBC_PAGE_H +#define _UCLIBC_PAGE_H + +/* + * Linux/NDS32 supports 4k and 8k pages (build time). + * + * Although uClibc determines page size dynamically from kernel's auxv + * still the generic code needs a fall back + * _dl_pagesize = auxvt[AT_PAGESZ].a_un.a_val ? : PAGE_SIZE + */ + +#include <features.h> + +#if defined(__CONFIG_NDS32_PAGE_SIZE_8K__) +#define PAGE_SHIFT 13 +#else +#define PAGE_SHIFT 12 +#endif + +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) + +/* TBD: fix this with runtime value for a PAGE_SIZE agnostic uClibc */ +#define MMAP2_PAGE_SHIFT PAGE_SHIFT + +#endif /* _UCLIBC_PAGE_H */ |