OS: Ubuntu Toolchain:GCC48
Issue Description : Program received signal SIGSEGV, Segmentation fault. at /home/pedroa/workspace/orign/edkcrb/MdeModulePkg/Core/Pei/Memory/MemoryServices.c:129 129 Private->MemoryPages.Size = (UINTN) (Private->HobList.HandoffInformationTable->EfiMemoryTop - if the GCC optimization option is used not -O0 so the "rbp" register will be used as "general register" in the SecTemporaryRamSupport function as below, this function will modify the rbp (as general register not stack base address pointer)value that result in program crash. ASM_PFX(SecTemporaryRamSupport): // Adjust callers %rbp to account for stack move subq %rdx, %rbp // Calc offset of %rbp in Temp Memory addq %r8, %rbp // add in permanent base to offset _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
