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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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Shell
1234567891011121314151617181920212223242526#!/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: $0 <file.o>" >&2 exit 1fi
bad_symbols=$(${NM:-nm} "$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 1fi
exit 0