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List:       linux-kernel
Subject:    Re: [PATCH v5 05/13] selftests/sgx: Specify freestanding environment for enclave compilation
From:       "Huang, Kai" <kai.huang () intel ! com>
Date:       2023-08-31 23:15:43
Message-ID: ae25b34b901b8cee6e6e186fe5ddc739baab1db1.camel () intel ! com
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On Thu, 2023-08-31 at 15:41 +0200, Jo Van Bulck wrote:
> Use -ffreestanding to assert the enclave compilation targets a
> freestanding environment (i.e., without "main" or standard libraries).
> This fixes clang reporting "undefined reference to `memset'" after
> erroneously optimizing away the provided memset/memcpy implementations.
> 
> Still need to instruct the linker from using standard system startup
> functions, but drop -nostartfiles as it is implied by -nostdlib.
> 
> Signed-off-by: Jo Van Bulck <jo.vanbulck@cs.kuleuven.be>
> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>

Acked-by: Kai Huang <kai.huang@intel.com>

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