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author | Antony Pavlov <antonynpavlov@gmail.com> | 2018-06-28 10:39:42 +0300 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-06-29 09:29:42 +0200 |
commit | 5302dff3b60d6ef288bfd9526b69381ffc3ed990 (patch) | |
tree | 5baafca9c7b48e383e6145485101724fdcc0a66c /include/lib | |
parent | fe040e0977fab29216f5039e8f9b04e6dbec859a (diff) | |
download | barebox-5302dff3b60d6ef288bfd9526b69381ffc3ed990.tar.gz barebox-5302dff3b60d6ef288bfd9526b69381ffc3ed990.tar.xz |
lib: Add shared copies of some GCC library routines
This commit is based on these linux kernel commits:
| commit b35cd9884fa5d81c9d5e7f57c9d03264ae2bd835
| Author: Palmer Dabbelt <palmer@dabbelt.com>
| Date: Tue May 23 10:28:26 2017 -0700
|
| lib: Add shared copies of some GCC library routines
|
| commit e3d5980568fdf83c15a5a3c8ddca1590551ab7a2
| Author: Matt Redfearn <matt.redfearn@mips.com>
| Date: Wed Apr 11 08:50:17 2018 +0100
|
| lib: Rename compiler intrinsic selects to GENERIC_LIB_*
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include/lib')
-rw-r--r-- | include/lib/libgcc.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/include/lib/libgcc.h b/include/lib/libgcc.h new file mode 100644 index 0000000000..adad27704a --- /dev/null +++ b/include/lib/libgcc.h @@ -0,0 +1,47 @@ +/* + * include/lib/libgcc.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc. + */ + +#ifndef __LIB_LIBGCC_H +#define __LIB_LIBGCC_H + +#include <asm/byteorder.h> + +typedef int word_type __attribute__ ((mode (__word__))); + +#ifdef __BIG_ENDIAN +struct DWstruct { + int high, low; +}; +#elif defined(__LITTLE_ENDIAN) +struct DWstruct { + int low, high; +}; +#else +#error I feel sick. +#endif + +typedef union { + struct DWstruct s; + long long ll; +} DWunion; + +long long __lshrdi3(long long u, word_type b); +long long __ashldi3(long long u, word_type b); +long long __ashrdi3(long long u, word_type b); + +#endif /* __ASM_LIBGCC_H */ |