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PeiCore hang when loads a PEIM whose section alignment requirement is 0x40 but the actual base address is 0x20 aligned. The issue is caused by the following facts, in order: 1. GCC49 requires the section alignment of .data to be 0x40. So a new link script gcc4.9-ld-script was added for GCC49 to specify the 0x40 alignment. 2. GenFw tool was enhanced to sync ELF's section alignment to PE header. Before the enhancement, the section alignment of converted PE image always equals to 0x20. If only with #1 change, GCC49 build image won't hang in PeiCore because the converted PE image still claims 0x20 section alignment which is aligned to the align setting set in FDF file. But later with #2 change, the converted PE image starts to claims 0x40 section alignment, while build tool still puts the PEIM in 0x20 aligned address, resulting the PeCoffLoaderLoadImage() reports IMAGE_ERROR_INVALID_SECTION_ALIGNMENT error. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17902 6f19259b-4bc3-4df7-8a09-765794883524