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[195.23.151.163]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49fcd103325sm264478965e9.9.2026.09.21.05.27.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 21 Sep 2026 05:27:16 -0700 (PDT) Sender: Julian Braha Message-ID: Date: Mon, 21 Sep 2026 13:27:15 +0100 Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/3] kconfig: Add "ld-option-str" To: Kees Cook , Nathan Chancellor Cc: Nicolas Schier , Matthew Maurer , Masahiro Yamada , Miguel Ojeda , =?UTF-8?Q?Thomas_Wei=C3=9Fschuh?= , Gary Guo , linux-kbuild@vger.kernel.org, "Lorenzo Stoakes (ARM)" , Jonathan Corbet , Shuah Khan , Randy Dunlap , Vegard Nossum , Nauman Sabir , Tejun Heo , Nicolas Pitre , Andy Shevchenko , Andrew Jones , Graham Roff , Arnd Bergmann , Krzysztof Kozlowski , "Borislav Petkov (AMD)" , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-hardening@vger.kernel.org References: <20260919005923.i.879-kees@kernel.org> <20260919005929.4077729-3-kees@kernel.org> Content-Language: en-US From: Julian Braha In-Reply-To: <20260919005929.4077729-3-kees@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 9/19/26 01:59, Kees Cook wrote: > Add the linker counterpart to $(cc-option-str), sharing a $(ld-probe) > with $(ld-option) the way the compiler macros share $(cc-probe). Like > $(cc-option-str), it can now be used as: > > config LD_OPT_FOO > def_string "$(ld-option-str,--new-option,--old-option)" > > An omitted fallback expands to the empty string. > > Build tested ARCH=x86_64 defconfig with GCC 16.2.0, and checked against > GNU ld 2.47. > > Assisted-by: LLM > Signed-off-by: Kees Cook Tested-by: Julian Braha Reviewed-by: Julian Braha