On Wed, May 24, 2017 at 03:27:07PM -0700, Ard Biesheuvel wrote: > On 24 May 2017 at 13:26, dann frazier <[email protected]> wrote: > > v2: > > * Replace -no-pie w/ -static for compat with GCC 4.9 > > > > For my understanding, could you elaborate on what goes wrong if you > omit -static / -no-pie?
Well, nothing... now :) -static/-no-pie was avoiding an issue with GenFw: ----------- "GenFw" -e SEC -o /tmp/edk2/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore/DEBUG/ArmPlatformPrePeiCore.efi /tmp/edk2/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore/DEBUG/ArmPlatformPrePeiCore.dll GenFw: ERROR 3000: Invalid WriteSections64(): /tmp/edk2/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore/DEBUG/ArmPlatformPrePeiCore.dll AARCH64 small code model requires identical ELF and PE/COFF section offsets modulo 4 KB. [...] ----------- Upon rebase/retest, I found that this was no longer reproducible. Bisection shows that the problem went away recently after this commit: commit 00b00cc57bfe0fca54c904d4dd44a263e243c88b Author: Ard Biesheuvel <[email protected]> Date: Fri May 19 11:47:40 2017 +0100 BaseTools/Scripts: discard .gnu.hash section in GCC builds -*f*no-pie does still seem to be needed though. Without it, the ARM build fails with: ----------- "GenFw" -e DXE_DRIVER -o /tmp/edk2/Build/ArmVirtQemu-ARM/DEBUG_GCC49/ARM/MdeModulePkg/Universal/Network/DpcDxe/DpcDxe/DEBUG/DpcDxe.efi /tmp/edk2/Build/ArmVirtQemu-ARM/DEBUG_GCC49/ARM/MdeModulePkg/Universal/Network/DpcDxe/DpcDxe/DEBUG/DpcDxe.dll GenFw: ERROR 3000: Invalid /tmp/edk2/Build/ArmVirtQemu-ARM/DEBUG_GCC49/ARM/MdeModulePkg/Universal/Network/DpcDxe/DpcDxe/DEBUG/DpcDxe.dll: Bad definition for symbol '_GLOBAL_OFFSET_TABLE_'@0x5e94 or unsupported symbol type. For example, absolute and undefined symbols are not supported. ----------- -dann _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
