[PATCH 02/23] scripts/mksysmap: fix escape of '$' in the __pi_ pattern
From: "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
Date: 2026-09-08 20:55:55
Also in:
linux-doc, linux-efi, linux-kbuild, linux-riscv, lkml, llvm, rust-for-linux
Subsystem:
kernel build + files below scripts/ (unless maintained elsewhere), the rest · Maintainers:
Nathan Chancellor, Nicolas Schier, Linus Torvalds
Commit b18b047002b7 ("kbuild: change scripts/mksysmap into sed script")
converted scripts/mksysmap from a shell script to a sed script.
However an error was made - escaping of '$' required \\ escaping in shell
but only \ in a sed script.
This was mostly corrected in commit 7a6c355b55c0 ("scripts/mksysmap: Fix
escape chars '$'"), but this fix missed arm64 PIE namespace local symbols
like __pi_$x and __pi_$d which appear in System.mapand /proc/kallsyms:
$ grep __pi_\\$ /proc/kallsyms | sort -u
0000000000000000 d __pi_$d
0000000000000000 t __pi_$x
Fix the escaping properly.
Fixes: b18b047002b7 ("kbuild: change scripts/mksysmap into sed script")
No measurable change in build time.
Assisted-by: LLM
Signed-off-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
---
scripts/mksysmap | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/mksysmap b/scripts/mksysmap
index 56a8b8bbdb37..856b26ba2ac0 100755
--- a/scripts/mksysmap
+++ b/scripts/mksysmap@@ -35,7 +35,7 @@ / __efistub_/d # arm64 local symbols in PIE namespace -/ __pi_\\$/d +/ __pi_\$/d / __pi_\.L/d # arm64 local symbols in non-VHE KVM namespace
--
2.55.0