Android xmake fails about libbpf-bootstrap

[waruqi]

I have fixed this error. #237

we can use bpftool 7.2.0 now.

[waruqi]

I have fixed this issue, see this patch. #236

This is because after the elfutils package in xmake-repo was installed, its make install script did not automatically install elf.h, so elfutils/libelf.h automatically found elf.h on the system, resulting in some header file conflicts.

incorrect search paths:

bpf -> elfutils/libelf.h -> system/elf.h 

now:

bpf -> elfutils/libelf.h -> elfutils/elf.h 

system/libelf is too old, we should not use it. and I have updated elfutils to 0.189

I've fixed this, try reinstalling the elfutils package to fix this.

xrepo update-repo
xrepo remove --all -y elfutils
xmake f -p android -c --require-bpftool=y
xmake

[waruqi]

When I do --require-bpftool=y which means that bpftool is fetched from xmake repo it works! thanks! But when I try to install bfptool from Github on the system, for example latest 7.2.0 it fails same way.

I need to be able to specify package versions by commit or something

Due to some issues with system bpftool 7.2.0, it is recommended to pull the specified version of bpftool from the remote by default until these issues are fixed. It always works fine.

Also, we can specify the bpftool version in the add_requires() of xmake.lua

#237

Now we can only run xmake f -p android to configure and build it.

And I'm going to improve the fetch script for the bpftool package inside xmake-repo to also enable version checking of the system bpftool, so that if the system bpftool is the one we need, we can still prioritise the use of the system bpftool instead of downloading and installing it every time.

[anakryiko]

xmake support is best-effort, unfortunately. It seems like your libelf is too old, unfortunately. Can you try updating it on your system?

[anakryiko]

actually, I think we might need to just fix it on libbpf side to avoid this problem, I'll look into that

[anakryiko]

hm... it seems like SHT_GNU_versym has been defined since at least 2005, so either you have super ancient version of libelf, or it's wrong one. You need elfutils package, I believe.

[guri87-byte]

I have the same case as the OP, when running xmake f -p android on the first time following packages are installed:

  -> ndk 22.0
  -> zlib v1.3 [toolchains:"@ndk", from:elfutils]
  -> libintl 0.21 [toolchains:"@ndk", from:elfutils]
  -> argp-standalone 1.3 [toolchains:"@ndk", from:elfutils]
  -> elfutils 0.183

It installed elfutils 0.183, I guess we all should have the same version, isn't?

dpkg -s libelf1

Package: libelf1
Status: install ok installed
Priority: important
Section: libs
Installed-Size: 192
Maintainer: Ubuntu Developers <[email protected]>
Architecture: amd64
Multi-Arch: same
Source: elfutils
Version: 0.186-1build1
Depends: libc6 (>= 2.33), zlib1g (>= 1:1.1.4)

[guri87-byte]

Updated to the latest elfutils available on Ubuntu 22.04 but same.

[guri87-byte]

When I do --require-bpftool=y which means that bpftool is fetched from xmake repo it works! thanks!
But when I try to install bfptool from Github on the system, for example latest 7.2.0 it fails same way.

I need to be able to specify package versions by commit or something

[guri87-byte]

Sounds good, thank you!