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patches/glibc/ports-2.12.1/200-fadvise64_64.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892 aa934ec4b4ee
permissions -rw-r--r--
cc/gcc: add the backend/frontend infra for final gcc

Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 ripped from Debian

     2 

     3  sysdeps/unix/sysv/linux/posix_fadvise.c |   13 +++++++++++++

     4  1 file changed, 13 insertions(+)

     5 

     6 diff -durN glibc-2.12.1.orig/sysdeps/unix/sysv/linux/posix_fadvise.c glibc-2.12.1/sysdeps/unix/sysv/linux/posix_fadvise.c

     7 --- glibc-2.12.1.orig/sysdeps/unix/sysv/linux/posix_fadvise.c	2003-08-17 02:36:22.000000000 +0200

     8 +++ glibc-2.12.1/sysdeps/unix/sysv/linux/posix_fadvise.c	2009-11-13 00:50:03.000000000 +0100

     9 @@ -35,6 +35,19 @@

    10      return INTERNAL_SYSCALL_ERRNO (ret, err);

    11    return 0;

    12  #else

    13 +# ifdef __NR_fadvise64_64

    14 +  INTERNAL_SYSCALL_DECL (err);  

    15 +  int ret = INTERNAL_SYSCALL (fadvise64_64, err, 6, fd,

    16 +			      __LONG_LONG_PAIR ((long) (offset >> 31),

    17 +						(long) offset),

    18 +			      __LONG_LONG_PAIR ((long) (len >> 31),

    19 +						(long) len),

    20 +			      advise);

    21 +  if (INTERNAL_SYSCALL_ERROR_P (ret, err))

    22 +    return INTERNAL_SYSCALL_ERRNO (ret, err);

    23 +  return 0;

    24 +# else

    25    return ENOSYS;

    26 +# endif

    27  #endif

    28  }
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