On 2018-11-17 20:51:11, Liu Yu wrote: > OS: Ubuntu > > Toolchain:GCC48
I don't have gcc-4.8, so I couldn't reproduce the issue, but I wonder if this branch can fix the issue for you? https://github.com/jljusten/edk2/tree/emulator-temp-ram You can fetch this branch locally to a branch named `test` with a command like this: $ git fetch --no-tags https://github.com/jljusten/edk2.git emulator-temp-ram:test Then checkout the `test` branch to try it. First, there is some patches to cleanup Sec, but then I added a patch: 53a432e149 "EmulatorPkg/Sec: Disable optimizations for TemporaryRamMigration function" Which I hope might help in your case. -Jordan > > 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 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
