Hi, I researched a little bit on this topic and it seems that you have to add fuse-linker-plugin to the build options to enable lto plugins.
I did that and unfortunately it had no effect. After running gcc through strace I could see that liblto_plugin.so does get loaded from the cross-toolchains libexec directory though. Does that mean that the toolchain I use (GCC5 from releases.linaro.org and GCC6 from git.linaro.org) generates lto objects which it can't process with the shipped plugin? btw, if I compile using my hosts native GCC(x64) but for IA32 I get lto errors even for MdePkg. It looks like the fno-lto option is a very bad workaround and can break any time using specific configurations. Thanks Michael On Sat, Aug 6, 2016 at 4:53 PM, Michael Zimmermann <[email protected] > wrote: > not sure since I only tested it for ARM this time. > these are the failing objects: > SoftFloat: > ld: __aeabi_dcmpeq.obj: plugin needed to handle lto object > ld: __aeabi_fcmpeq.obj: plugin needed to handle lto object > ld: __aeabi_dcmpge.obj: plugin needed to handle lto object > ld: __aeabi_fcmpge.obj: plugin needed to handle lto object > ld: __aeabi_dcmpgt.obj: plugin needed to handle lto object > ld: __aeabi_fcmpgt.obj: plugin needed to handle lto object > ld: __aeabi_dcmple.obj: plugin needed to handle lto object > ld: __aeabi_fcmple.obj: plugin needed to handle lto object > ld: __aeabi_dcmplt.obj: plugin needed to handle lto object > ld: __aeabi_fcmplt.obj: plugin needed to handle lto object > > LibC: > ld: fixunsdfsi.obj: plugin needed to handle lto object > ld: fixunssfsi.obj: plugin needed to handle lto object > ld: floatunsidf.obj: plugin needed to handle lto object > ld: floatunsisf.obj: plugin needed to handle lto object > > Thanks > Michael > > On Sat, Aug 6, 2016 at 4:42 PM, Ard Biesheuvel <[email protected]> > wrote: > >> On 6 August 2016 at 16:18, Michael Zimmermann <[email protected]> >> wrote: >> > StdLib/LibC/Softfloat/Softfloat.inf and StdLib/LibC/LibC.inf need this >> flags >> > too. >> > >> >> Just for ARM? >> > > _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
