From: John Millikin <john@john-millikin.com>
Date: Wed, 23 Dec 2020 05:10:56 +0000 (+0900)
Subject: arm64: Support running gen_vdso_offsets.sh with BSD userland.
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f3cb097ad8888019e6d8777cb17bcee18ac6c2f6;p=linux.git

arm64: Support running gen_vdso_offsets.sh with BSD userland.

BSD sed ignores whitespace character escape sequences such as '\t' in
the replacement string, causing this script to produce the following
incorrect output:

  #define vdso_offset_sigtrampt0x089c

Changing the hard tab to ' ' causes both BSD and GNU dialects of sed
to produce equivalent output.

Signed-off-by: John Millikin <john@john-millikin.com>
Link: https://lore.kernel.org/r/15147ffb-7e67-b607-266d-f56599ecafd1@john-millikin.com
Signed-off-by: Will Deacon <will@kernel.org>
---

diff --git a/arch/arm64/kernel/vdso/gen_vdso_offsets.sh b/arch/arm64/kernel/vdso/gen_vdso_offsets.sh
index 8b806eacd0a6c..0387209d65b17 100755
--- a/arch/arm64/kernel/vdso/gen_vdso_offsets.sh
+++ b/arch/arm64/kernel/vdso/gen_vdso_offsets.sh
@@ -13,4 +13,4 @@
 
 LC_ALL=C
 sed -n -e 's/^00*/0/' -e \
-'s/^\([0-9a-fA-F]*\) . VDSO_\([a-zA-Z0-9_]*\)$/\#define vdso_offset_\2\t0x\1/p'
+'s/^\([0-9a-fA-F]*\) . VDSO_\([a-zA-Z0-9_]*\)$/\#define vdso_offset_\2 0x\1/p'