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The generated AutoGen.c files mostly contain read-only data, but due to lacking annotations, all of it is emitted into the .data section by the compiler. Given that GUIDs are UEFI's gaffer tape, having writable GUIDs is a security hazard, and this was the main rationale for putting AutoGen.obj in the .text section. However, as it turns out, patchable PCDs are emitted there as well, which can legally be modified at runtime. So update the wildcard pattern to only match g...Guid sections, and move everything else back to .data (Note that this relies on -fdata-sections, without that option, everything is emitted into .data) Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Fixes: 233bd25b000f92fc4bbe181fa48edcd72808de8e [lersek@redhat.com: add reference to previous commit being fixed up] Signed-off-by: Laszlo Ersek <lersek@redhat.com>