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[104.12.136.65]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-11f2e2b4867sm31845185c88.6.2025.12.13.15.54.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 13 Dec 2025 15:54:07 -0800 (PST) Message-ID: <1286af8e-f908-45db-af7c-d9c5d592abfd@gmail.com> Date: Sat, 13 Dec 2025 15:54:05 -0800 Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: stable@vger.kernel.org, regressions@lists.linux.dev, rust-for-linux@vger.kernel.org, Miguel Ojeda Cc: =?UTF-8?Q?Bj=C3=B6rn_Roy_Baron?= , Alex Gaynor , Boqun Feng , Gary Guo , Andreas Hindborg , Alice Ryhl , Danilo Krummrich , Trevor Gross , Benno Lossin From: Rudraksha Gupta Subject: ARMv7 Linux + Rust doesn't boot when compiling with only LLVM=1 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hello all, I have the following problem: https://gitlab.postmarketos.org/postmarketOS/pmbootstrap/-/issues/2635 In short, what is happening is the following: - The kernel boots and outputs via UART when I build the kernel with the following: make LLVM=1 ARCH="$arm" CC="${CC:-gcc}" - The kernel doesn't boot and there is no output via UART when I build the kernel with the following: make LLVM=1 ARCH="$arm" The only difference being: CC="${CC:-gcc}". Is this expected? I think this was present in the Linux kernel ever since Rust was enabled for ARMv7, and I never encountered it because postmarketOS was originally building the first way. Thanks, Rudraksha