On 2 August 2016 at 16:39, Michael Zimmermann <sigmaepsilo...@gmail.com> wrote: > Sry for the late reply but I tried your latest gcc-lto branch to make sure > my answers are still correct. > I tested it with all configurations(StdLib:X64/ARM, Ovmf:X64, ArmVirtPkg:ARM > with both RELEASE and DEBUG). > In StdLib are many warnings actually. That's because of > -Wunused-const-variable and -Wmisleading-indentation. > Also I had to apply the commit to fix 'Unsupported ELF EM_X86_64 relocation > 0x4.' for X64. >
Only 0x4 or 0x9 or others as well? This is relevent since 0x4 is a PLT relocation which can be fixed up easily. The GOT based ones are trickier since they involve a GOT entry with an absolute symbol address that needs to be fixed up by the PE/COFF loader > '-b RELEASE -a ARM -t GCC5 -p AppPkg/AppPkg.dsc' is the only configuration I > can't get to compile with gcc6(DEBUG works): > /tmp/ccYJi1bO.ltrans0.ltrans.o: In function `memmove': > <artificial>:(.text+0x3670): multiple definition of `memmove' > /media/Data/repositories/git/efidroid/testing/linuxtoolchain/edk2/Build/AppPkg/RELEASE_GCC5/ARM/ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib/OUTPUT/CompilerIntrinsicsLib.lib(memmove.obj):(.text+0x0): > first defined here > /tmp/ccYJi1bO.ltrans0.ltrans.o: In function `memset': > <artificial>:(.text+0x3674): multiple definition of `memset' > /media/Data/repositories/git/efidroid/testing/linuxtoolchain/edk2/Build/AppPkg/RELEASE_GCC5/ARM/ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib/OUTPUT/CompilerIntrinsicsLib.lib(memset.obj):(.text+0x10): > first defined here Interesting. I wonder where the first memmove resp. memset are coming from. Are you linking with libgcc are sth like that? > /media/Data/repositories/git/efidroid/prebuilts/gcc/linux-x86/arm/gcc-linaro-6.1.1~linaro-gcc-6-branch@f3888e76-20160721-x86_64_arm-eabi/bin/../lib/gcc/arm-eabi/6.1.1/../../../../arm-eabi/bin/ld: > printf.obj: plugin needed to handle lto object > /media/Data/repositories/git/efidroid/prebuilts/gcc/linux-x86/arm/gcc-linaro-6.1.1~linaro-gcc-6-branch@f3888e76-20160721-x86_64_arm-eabi/bin/../lib/gcc/arm-eabi/6.1.1/../../../../arm-eabi/bin/ld: > puts.obj: plugin needed to handle lto object > /media/Data/repositories/git/efidroid/prebuilts/gcc/linux-x86/arm/gcc-linaro-6.1.1~linaro-gcc-6-branch@f3888e76-20160721-x86_64_arm-eabi/bin/../lib/gcc/arm-eabi/6.1.1/../../../../arm-eabi/bin/ld: > internal error > /media/Data/repositories/git/abe/_build/snapshots/binutils-gdb.git~linaro_binutils-2_26-branch/ld/ldlang.c > 6299 > collect2: error: ld returned 1 exit status > make: *** [GNUmakefile:417: > /media/Data/repositories/git/efidroid/testing/linuxtoolchain/edk2/Build/AppPkg/RELEASE_GCC5/ARM/AppPkg/Applications/Main/Main/DEBUG/Main.dll] > Error 1 > Not sure what's going on here ... > Also, I only did compilation tests, I didn't try to run any of the produced > binaries. > > this is the fixed branch: > https://github.com/M1cha/edk2/commits/edk2-master-gcc6 > it's based on your gcc5-lto-v6 branch. > Thanks for the report. I will look into this. _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
