Re: [Minios-devel] [UNIKRAFT PATCH v3 0/2] Introduce LTO build option

[Wei Chen <Wei.Chen@xxxxxxx>]

Hi Simon,

I am rebaseing my Arm64 KVM code to latest upstream. But I find this patch
series make both Arm and x86_64 build failed. Even if after I selected the
LTO option from menuconfig.

X86_64 xen platform error:
/usr/bin/x86_64-linux-gnu-ld: -r and -pie may not be used together
collect2: error: ld returned 1 exit status
/home/weic/WIP/unikraft/unikraft/support/build/Makefile.build:48: recipe for 
target '/home/weic/WIP/unikraft/unikraft/build/libxenplat.ld.o' failed
make[1]: *** [/home/weic/WIP/unikraft/unikraft/build/libxenplat.ld.o] Error 1
Makefile:32: recipe for target '_all' failed
make: *** [_all] Error 2

arm64 kvm platform error:
AS      libkvmplat: entry64.o
  AS      libkvmplat: exceptions.o
  AS      libkvmplat: pagetable.o
  CC      libkvmplat: cpu_arm_64.o
  CC      libkvmplat: setup.o
  CC      libkvmplat: console.o
  CC      libkvmplat: lcpu.o
  CC      libkvmplat: time.o
  CC      libkvmplat: shutdown.o
  CC      libkvmplat: memory.o
  LD      libkvmplat.ld.o
/usr/bin/aarch64-linux-gnu-ld: -r and -pie may not be used together
collect2: error: ld returned 1 exit status
/root/UF/unikraft/support/build/Makefile.build:48: recipe for target 
'/root/UF/unikraft/build/libkvmplat.ld.o' failed
make: *** [/root/UF/unikraft/build/libkvmplat.ld.o] Error 1

What did I miss in configuration?

Regards,
Wei Chen

> -----Original Message-----
> From: Minios-devel <minios-devel-bounces@xxxxxxxxxxxxxxxxxxxx> On Behalf Of
> Simon Kuenzer
> Sent: 2018年5月16日 20:57
> To: minios-devel@xxxxxxxxxxxxx
> Cc: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>; sharan.santhanam@xxxxxxxxx
> Subject: [Minios-devel] [UNIKRAFT PATCH v3 0/2] Introduce LTO build option
>
> This patch series introduces LTO as a build option.
> For this purpose, GCC is used for linking which enables
> code optimization during link time. When enabling this option
> in the menu, smaller and more efficient images can be created.
>
> Changes since v2:
>  - Use also GCC's wrapper for `nm` and `ar`: `gcc-nm` and `gcc-ar`
>
> Please note, by mistake v2 was the first version of this patch series.
>
> Simon Kuenzer (2):
>   build: Use GCC replacements for `ld`, `ar`, and `nm`
>   build: Provide LTO as build option
>
>  Config.uk             |  8 ++++++++
>  Makefile              |  6 +++---
>  Makefile.uk           | 14 ++++++++++----
>  plat/kvm/Linker.uk    |  8 ++++----
>  plat/linuxu/Linker.uk |  2 +-
>  plat/xen/Linker.uk    | 16 ++++++++--------
>  6 files changed, 34 insertions(+), 20 deletions(-)
>
> --
> 2.7.4
>
>
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