3set -e
   5# When you move, remove or rename generated files, you probably also update
   6# .gitignore and cleaning rules in the Makefile. This is the right thing
   7# to do. However, people usually do 'git pull', 'git bisect', etc. without
   8# running 'make clean'. Then, the stale generated files are left over, often
   9# causing build issues.
  11# Also, 'git status' shows such stale build artifacts as untracked files.
  12# What is worse, some people send a wrong patch to get them back to .gitignore
  13# without checking the commit history.
  15# So, when you (re)move generated files, please move the cleaning rules from
  16# the Makefile to this script. This is run before Kbuild starts building
  17# anything, so people will not be annoyed by such garbage files.
  19# This script is not intended to grow endlessly. Rather, it is a temporary scrap
  20# yard. Stale files stay in this file for a while (for some release cycles?),
  21# then will be really dead and removed from the code base entirely.
  23# These were previously generated source files. When you are building the kernel
  24# with O=, make sure to remove the stale files in the output tree. Otherwise,
  25# the build system wrongly compiles the stale ones.
  26if [ -n "${building_out_of_srctree}" ]; then
  27        for f in fdt_rw.c fdt_ro.c fdt_wip.c fdt.c
  28        do
  29                rm -f arch/arm/boot/compressed/${f}
  30        done