0  # SPDX-License-Identifier: GPL-2.0 # GCC and Clang accept backend options differently. Do not wrap in cc-option, # because Clang accepts "--param" even if it is unused. ifdef CONFIG_CC_IS_CLANG cc-param = -mllvm -$(1) else cc-param = --param $(1) endif # Keep most options here optional, to allow enabling more compilers if absence # of some options does not break KCSAN nor causes false positive reports. kcsan-cflags := -fsanitize=thread -fno-optimize-sibling-calls \ $(call cc-option,$(call cc-param,tsan-compound-read-before-write=1),$(call cc-option,$(call cc-param,tsan-instrument-read-before-write=1))) \ $(call cc-param,tsan-distinguish-volatile=1) ifdef CONFIG_CC_IS_GCC # GCC started warning about operations unsupported by the TSan runtime. But # KCSAN != TSan, so just ignore these warnings. kcsan-cflags += -Wno-tsan endif ifndef CONFIG_KCSAN_WEAK_MEMORY kcsan-cflags += $(call cc-option,$(call cc-param,tsan-instrument-func-entry-exit=0)) endif export CFLAGS_KCSAN := $(kcsan-cflags)  g_ub &=LyY#!/usr/bin/sh # SPDX-License-Identifier: GPL-2.0 # # Print the linker name and its version in a 5 or 6-digit form. # Also, perform the minimum version check. set -e # Convert the version string x.y.z to a canonical 5 or 6-digit form. get_canonical_version() { IFS=. set -- $1 # If the 2nd or 3rd field is missing, fill it with a zero. # # The 4th field, if present, is ignored. # This occurs in development snapshots as in 2.35.1.20201116 echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0})) } orig_args="$@" # Get the first line of the --version output. IFS=' ' set -- $(LC_ALL=C "$@" --version) # Split the line on spaces. IFS=' ' set -- $1 min_tool_version=$(dirname $0)/min-tool-version.sh if [ "$1" = GNU -a "$2" = ld ]; then shift $(($# - 1)) version=$1 min_version=$($min_tool_version binutils) name=BFD disp_name="GNU ld" elif [ "$1" = GNU -a "$2" = gold ]; then echo "gold linker is not supported as it is not capable of linking the kernel proper." >&2 exit 1 else while [ $# -gt 1 -a "$1" != "LLD" ]; do shift done if [ "$1" = LLD ]; then version=$2 min_version=$($min_tool_version llvm) name=LLD disp_name=LLD else echo "$orig_args: unknown linker" >&2 exit 1 fi fi # Some distributions append a package release number, as in 2.34-4.fc32 # Trim the hyphen and any characters that follow. version=${version%-*} cversion=$(get_canonical_version $version) min_cversion=$(get_canonical_version $min_version) if [ "$cversion" -lt "$min_cversion" ]; then echo >&2 "***" echo >&2 "*** Linker is too old." echo >&2 "*** Your $disp_name version: $version" echo >&2 "*** Minimum $disp_name version: $min_version" echo >&2 "***" exit 1 fi echo $name $cversion 3lz*Clq@Cq)F l_ub &=LyZof?]v W>ɏ`?R[U%W,428vA7UsvTA}ojz???oz?pw_?ߖ,c?_r_~˗}e?qxz~ÿoϷ?}_w/j|W>?>kps8|󇿿m5ǵּ|m~x>6ㇿy답}ދkqt\K]spzy9==/y%|===,emǧoƵ4c5iI5?K뚵Y~to[za[.jVka[y|Sg;;?xiTwq/'+;QگovqEǧחJׯ\pu/\a? xc0ׇ+w_^_Я^)?SIoZ>n>}ؾ>{e/,\!?C^JV2w2/O/Q/ a 5/\A,A|>}+;]O/Z+;_>ߧ\+ZWڊw~~? Y.nUѧϧrE㝼f