libmstpm: add -mno-red-zone in CFLAGS
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From System V x86-64 abi, the 128-byte read zone area beyond the location pointed to by %rsp is considered to be reserved and shall not be modified by signal or interrupt handlers. As the red area is enabled by default by gcc, the interrupt handler in the current implementation may disrupt the data within the area. To avoid unpredictable behavior caused by this, disable the red zone by adding `-mno-red-zone` in CFLAGS for building openssl and ms-tpm-20-ref. Signed-off-by: Jiaqi Gao <[email protected]>
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From System V x86-64 abi, the 128-byte read zone area beyond the location pointed to by %rsp is considered to be reserved and shall not be modified by signal or interrupt handlers.
As the red area is enabled by default by gcc, the interrupt handler in the current implementation may disrupt the data within the area.
To avoid unpredictable behavior caused by this, disable the red zone by adding
-mno-red-zonein CFLAGS for building openssl and ms-tpm-20-ref.