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PATH: usr / src / kernels / 5.14.0-611.54.3.el9_7.x86_64 / scripts

#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-only
set -e

# Argument 1: Source file to build.
IN="$1"
shift
# Extract just the filename for error messages below.
FILE="${IN##*/}"
# Extract the function name for error messages below.
FUNC="${FILE#*-}"
FUNC="${FUNC%%-*}"
FUNC="${FUNC%%.*}"
# Extract the symbol to test for in build/symbol test below.
WANT="__${FILE%%-*}"

# Argument 2: Where to write the build log.
OUT="$1"
shift
TMP="${OUT}.tmp"

# Argument 3: Path to "nm" tool.
NM="$1"
shift

# Remaining arguments are: $(CC) $(c_flags)

# Clean up temporary file at exit.
__cleanup() {
	rm -f "$TMP"
}
trap __cleanup EXIT

# Function names in warnings are wrapped in backticks under UTF-8 locales.
# Run the commands with LANG=C so that grep output will not change.
export LANG=C

status=
# Attempt to build a source that is expected to fail with a specific warning.
if "$@" -Werror -c "$IN" -o "$OUT".o 2> "$TMP" ; then
	# If the build succeeds, either the test has failed or the
	# warning may only happen at link time (Clang). In that case,
	# make sure the expected symbol is unresolved in the symbol list.
	# If so, FORTIFY is working for this case.
	if ! $NM -A "$OUT".o | grep -m1 "\bU ${WANT}$" >>"$TMP" ; then
		status="warning: unsafe ${FUNC}() usage lacked '$WANT' symbol in $IN"
	fi
else
	# If the build failed, check for the warning in the stderr.
	# GCC:
	# ./include/linux/fortify-string.h:316:25: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]
	# Clang 14:
	# ./include/linux/fortify-string.h:316:4: error: call to __write_overflow_field declared with 'warning' attribute: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror,-Wattribute-warning]
	if ! grep -Eq -m1 "error: call to .?\b${WANT}\b.?" "$TMP" ; then
		status="warning: unsafe ${FUNC}() usage lacked '$WANT' warning in $IN"
	fi
fi

if [ -n "$status" ]; then
	# Report on failure results, including compilation warnings.
	echo "$status" | tee "$OUT" >&2
else
	# Report on good results, and save any compilation output to log.
	echo "ok: unsafe ${FUNC}() usage correctly detected with '$WANT' in $IN" >"$OUT"
fi
cat "$TMP" >>"$OUT"

[+] ..
[-] headers_check.pl [edit]
[+] genksyms
[-] cleanfile [edit]
[+] dtc
[-] file-size.sh [edit]
[-] cleanpatch [edit]
[-] checkdeclares.pl [edit]
[-] extract-cert [edit]
[-] module.lds [edit]
[-] decode_stacktrace.sh [edit]
[-] profile2linkerlist.pl [edit]
[-] extract-sys-certs.pl [edit]
[-] Makefile.randstruct [edit]
[-] jobserver-exec [edit]
[-] Kbuild.include [edit]
[-] unifdef [edit]
[-] modules-check.sh [edit]
[-] check_extable.sh [edit]
[-] mkuboot.sh [edit]
[-] Makefile.userprogs [edit]
[+] gcc-plugins
[-] decodecode [edit]
[-] tools-support-relr.sh [edit]
[-] Makefile.kcov [edit]
[-] cc-can-link.sh [edit]
[-] kallsyms [edit]
[-] Lindent [edit]
[-] recordmcount.pl [edit]
[-] Makefile.gcc-plugins [edit]
[-] remove-stale-files [edit]
[-] stackusage [edit]
[-] kernel-doc [edit]
[-] gen_ksymdeps.sh [edit]
[-] install.sh [edit]
[-] get_maintainer.pl [edit]
[-] Makefile.compiler [edit]
[-] sorttable.c [edit]
[-] xen-hypercalls.sh [edit]
[-] extract-module-sig.pl [edit]
[-] spdxcheck-test.sh [edit]
[-] faddr2line [edit]
[-] Makefile.package [edit]
[-] kallsyms.c [edit]
[-] gcc-x86_32-has-stack-protector.sh [edit]
[-] get_abi.pl [edit]
[-] mkcompile_h [edit]
[-] checkpatch.pl [edit]
[-] sign-file [edit]
[-] Makefile [edit]
[-] gcc-x86_64-has-stack-protector.sh [edit]
[-] Makefile.build [edit]
[-] leaking_addresses.pl [edit]
[-] syscallnr.sh [edit]
[-] markup_oops.pl [edit]
[-] checkversion.pl [edit]
[-] headerdep.pl [edit]
[-] Makefile.kmsan [edit]
[-] recordmcount.h [edit]
[-] depmod.sh [edit]
[-] subarch.include [edit]
[-] Makefile.kcsan [edit]
[-] prune-kernel [edit]
[-] sphinx-pre-install [edit]
[-] Makefile.extrawarn [edit]
[-] ld-version.sh [edit]
[+] gdb
[+] atomic
[-] ver_linux [edit]
[-] Makefile.host [edit]
[-] parse-maintainers.pl [edit]
[-] as-version.sh [edit]
[-] objdiff [edit]
[-] stackdelta [edit]
[-] tags.sh [edit]
[-] sign-file.c [edit]
[-] objdump-func [edit]
[-] insert-sys-cert.c [edit]
[-] gen_packed_field_checks.c [edit]
[-] Makefile.modinst [edit]
[-] coccicheck [edit]
[-] syscalltbl.sh [edit]
[-] documentation-file-ref-check [edit]
[-] Makefile.asm-generic [edit]
[-] adjust_autoksyms.sh [edit]
[-] bin2c.c [edit]
[-] patch-kernel [edit]
[-] generate_rust_target.rs [edit]
[-] config [edit]
[-] Makefile.lib [edit]
[-] test_fortify.sh [edit]
[+] mod
[-] gfp-translate [edit]
[-] headers_install.sh [edit]
[-] pahole-version.sh [edit]
[-] mksysmap [edit]
[-] find-unused-docs.sh [edit]
[-] extract_xc3028.pl [edit]
[-] dev-needs.sh [edit]
[-] makelst [edit]
[-] bloat-o-meter [edit]
[-] gen_autoksyms.sh [edit]
[+] basic
[-] setlocalversion [edit]
[-] Makefile.modpost [edit]
[-] link-vmlinux.sh [edit]
[-] nsdeps [edit]
[-] gcc-ld [edit]
[-] Makefile.vmlinux_o [edit]
[-] recordmcount.c [edit]
[-] min-tool-version.sh [edit]
[-] const_structs.checkpatch [edit]
[-] cc-version.sh [edit]
[-] checkincludes.pl [edit]
[-] extract-cert.c [edit]
[+] selinux
[+] coccinelle
[-] get_dvb_firmware [edit]
[+] clang-tools
[+] package
[-] extract-ikconfig [edit]
[-] check-sysctl-docs [edit]
[-] checkkconfigsymbols.py [edit]
[-] Makefile.clean [edit]
[-] checksyscalls.sh [edit]
[-] split-man.pl [edit]
[+] ksymoops
[-] show_delta [edit]
[-] Makefile.modfinal [edit]
[-] sorttable [edit]
[-] spelling.txt [edit]
[-] extract-vmlinux [edit]
[-] export_report.pl [edit]
[-] Makefile.btf [edit]
[-] asn1_compiler.c [edit]
[-] unifdef.c [edit]
[-] sorttable.h [edit]
[-] get_feat.pl [edit]
[+] include
[+] kconfig
[-] bpf_doc.py [edit]
[-] syscallhdr.sh [edit]
[-] Makefile.dtbinst [edit]
[-] diffconfig [edit]
[-] xz_wrap.sh [edit]
[-] Makefile.vmlinux [edit]
[-] checkstack.pl [edit]
[-] bootgraph.pl [edit]
[-] Makefile.kasan [edit]
[-] Makefile.headersinst [edit]
[-] generate_initcall_order.pl [edit]
[-] asn1_compiler [edit]
[-] Kconfig.include [edit]
[+] dummy-tools
[-] module.lds.S [edit]
[-] Makefile.ubsan [edit]