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arm64 fix for -rc8 / final

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- Handle CC variables containing quotes in tools-support-relr.sh script
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Will Deacon:
 "One trivial fix for -rc8/final that ensures that the script used to
  detect RELR relocation support in the toolchain works correctly when
  $CC contains quotes. Although it fails safely (by failing to detect
  the support when it exists), it would be nice to have this fixed in
  5.4 given that it was only introduced in the last merge window.

  Summary:

   - Handle CC variables containing quotes in tools-support-relr.sh
     script"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  scripts/tools-support-relr.sh: un-quote variables
This commit is contained in:
Linus Torvalds 2019-11-15 09:14:23 -08:00
commit eb70e26cd7
1 changed files with 4 additions and 4 deletions
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8
scripts/tools-support-relr.sh
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@ -4,13 +4,13 @@
tmp_file=$(mktemp)
trap "rm -f $tmp_file.o $tmp_file $tmp_file.bin" EXIT
cat << "END" | "$CC" -c -x c - -o $tmp_file.o >/dev/null 2>&1
cat << "END" | $CC -c -x c - -o $tmp_file.o >/dev/null 2>&1
void *p = &p;
END
"$LD" $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr -o $tmp_file
$LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr -o $tmp_file
# Despite printing an error message, GNU nm still exits with exit code 0 if it
# sees a relr section. So we need to check that nothing is printed to stderr.
test -z "$("$NM" $tmp_file 2>&1 >/dev/null)"
test -z "$($NM $tmp_file 2>&1 >/dev/null)"
"$OBJCOPY" -O binary $tmp_file $tmp_file.bin
$OBJCOPY -O binary $tmp_file $tmp_file.bin