Commit 4b7b1ef2 authored by James Hogan's avatar James Hogan Committed by Ralf Baechle

ld-version: Fix awk regex compile failure

The ld-version.sh script fails on some versions of awk with the
following error, resulting in build failures for MIPS:

awk: scripts/ld-version.sh: line 4: regular expression compile failed (missing '(')

This is due to the regular expression ".*)", meant to strip off the
beginning of the ld version string up to the close bracket, however
brackets have a meaning in regular expressions, so lets escape it so
that awk doesn't expect a corresponding open bracket.

Fixes: ccbef167 ("Kbuild, lto: add ld-version and ld-ifversion ...")
Reported-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
Tested-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Acked-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Tested-by: default avatarSudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Cc: Michal Marek <mmarek@suse.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kbuild@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # 4.4.x-
Patchwork: https://patchwork.linux-mips.org/patch/12838/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent ba9e72c2
#!/usr/bin/awk -f
# extract linker version number from stdin and turn into single number
{
gsub(".*)", "");
gsub(".*\\)", "");
gsub(".*version ", "");
gsub("-.*", "");
split($1,a, ".");
......
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