arch/arm64/kernel/vdso/gen_vdso_offsets.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 #
   5 # Match symbols in the DSO that look like VDSO_*; produce a header file
   6 # of constant offsets into the shared object.
   7 #
   8 # Doing this inside the Makefile will break the $(filter-out) function,
   9 # causing Kbuild to rebuild the vdso-offsets header file every time.
  10 #
  11 # Author: Will Deacon <will.deacon@arm.com
  12 #
  13
  14 LC_ALL=C
  15 sed -n -e 's/^00*/0/' -e \
  16 's/^\([0-9a-fA-F]*\) . VDSO_\([a-zA-Z0-9_]*\)$/\#define vdso_offset_\2\t0x\1/p'