arch/ia64/scripts/toolchain-flags

   1 #!/bin/sh
   2 #
   3 # Check whether linker can handle cross-segment @segrel():
   4 #
   5 CC=$1
   6 OBJDUMP=$2
   7 dir=$(dirname $0)
   8 tmp=${TMPDIR:-/tmp}
   9 out=$tmp/out$$
  10 $CC -nostdlib -static -Wl,-T$dir/check-segrel.lds $dir/check-segrel.S -o $out
  11 res=$($OBJDUMP --full --section .rodata $out | fgrep 000 | cut -f3 -d' ')
  12 rm -f $out
  13 if [ $res != 00000a00 ]; then
  14     echo " -DHAVE_BUGGY_SEGREL"
  15     cat >&2 <<EOF
  16 warning: your linker cannot handle cross-segment segment-relative relocations.
  17          please upgrade to a newer version (it is safe to use this linker, but
  18          the kernel will be bigger than strictly necessary).
  19 EOF
  20 fi