lkml.org 
[lkml]   [2020]   [Feb]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 03/19] linux/limits.h: Extract common header for vDSO
    Date
    The vDSO library should only include the necessary headers required for
    a userspace library (UAPI and a minimal set of kernel headers). To make
    this possible it is necessary to isolate from the kernel headers the
    common parts that are strictly necessary to build the library.

    Split limits.h into linux and common headers to make the latter suitable
    for inclusion in the vDSO library.

    Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
    ---
    include/common/limits.h | 18 ++++++++++++++++++
    include/linux/limits.h | 13 +------------
    2 files changed, 19 insertions(+), 12 deletions(-)
    create mode 100644 include/common/limits.h

    diff --git a/include/common/limits.h b/include/common/limits.h
    new file mode 100644
    index 000000000000..587269010add
    --- /dev/null
    +++ b/include/common/limits.h
    @@ -0,0 +1,18 @@
    +/* SPDX-License-Identifier: GPL-2.0 */
    +#ifndef __COMMON_LIMITS_H
    +#define __COMMON_LIMITS_H
    +
    +#define USHRT_MAX ((unsigned short)~0U)
    +#define SHRT_MAX ((short)(USHRT_MAX >> 1))
    +#define SHRT_MIN ((short)(-SHRT_MAX - 1))
    +#define INT_MAX ((int)(~0U >> 1))
    +#define INT_MIN (-INT_MAX - 1)
    +#define UINT_MAX (~0U)
    +#define LONG_MAX ((long)(~0UL >> 1))
    +#define LONG_MIN (-LONG_MAX - 1)
    +#define ULONG_MAX (~0UL)
    +#define LLONG_MAX ((long long)(~0ULL >> 1))
    +#define LLONG_MIN (-LLONG_MAX - 1)
    +#define ULLONG_MAX (~0ULL)
    +
    +#endif /* __COMMON_LIMITS_H */
    diff --git a/include/linux/limits.h b/include/linux/limits.h
    index 76afcd24ff8c..ac20d2b2edd9 100644
    --- a/include/linux/limits.h
    +++ b/include/linux/limits.h
    @@ -4,19 +4,8 @@

    #include <uapi/linux/limits.h>
    #include <linux/types.h>
    +#include <common/limits.h>

    -#define USHRT_MAX ((unsigned short)~0U)
    -#define SHRT_MAX ((short)(USHRT_MAX >> 1))
    -#define SHRT_MIN ((short)(-SHRT_MAX - 1))
    -#define INT_MAX ((int)(~0U >> 1))
    -#define INT_MIN (-INT_MAX - 1)
    -#define UINT_MAX (~0U)
    -#define LONG_MAX ((long)(~0UL >> 1))
    -#define LONG_MIN (-LONG_MAX - 1)
    -#define ULONG_MAX (~0UL)
    -#define LLONG_MAX ((long long)(~0ULL >> 1))
    -#define LLONG_MIN (-LLONG_MAX - 1)
    -#define ULLONG_MAX (~0ULL)
    #define SIZE_MAX (~(size_t)0)
    #define PHYS_ADDR_MAX (~(phys_addr_t)0)

    --
    2.25.0
    \
     
     \ /
      Last update: 2020-02-13 17:17    [W:4.134 / U:0.112 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site