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[Bug libc/10192] New: Use writev_not_cancel_no_status in elf/dl-misc.c

elf/dl-misc.c does a few direct call to __writev() when inline syscalls are not 
available. With some kernels it does not make sense to use inline syscalls as 
the arguments are passed on the stack with the default calling convention.

Since version 2.10, the code of writev includes a cancellation call to free a 
potentially malloced buffer. This means that should have unwind support 
which is not possible.

A solution is to use writev_not_cancel_no_status from not-cancel.h which seems 
to have been done exactly from this problem. A patch will follow.

           Summary: Use writev_not_cancel_no_status in elf/dl-misc.c
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: aurelien at aurel32 dot net
                CC: glibc-bugs at sources dot redhat dot com
 GCC build triplet: i686-unknown-kfreebsd7.1-gnu
  GCC host triplet: i686-unknown-kfreebsd7.1-gnu
GCC target triplet: i686-unknown-kfreebsd7.1-gnu

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