linux/scripts/check-function-names.sh at master · multikernel/linux · GitHub

executable file

25 lines (20 loc) · 645 Bytes

#!/bin/sh

# SPDX-License-Identifier: GPL-2.0

# Certain function names are disallowed due to section name ambiguities

# introduced by -ffunction-sections.

# See the comment above TEXT_MAIN in include/asm-generic/vmlinux.lds.h.

objfile="$1"

if [ ! -f "$objfile" ]; then

echo "usage: $0 <file.o>" >&2

exit 1

bad_symbols=$(${NM:-nm} "$objfile" | awk '$2 ~ /^[TtWw]$/ {print $3}' | grep -E '^(startup|exit|split|unlikely|hot|unknown)(\.|$)')

if [ -n "$bad_symbols" ]; then

echo "$bad_symbols" | while read -r sym; do

echo "$objfile: error: $sym() function name creates ambiguity with -ffunction-sections" >&2

done

exit 1

exit 0

Expand file tree