On 2024/9/5 7:08, Eduard Zingerman wrote:
On Wed, 2024-09-04 at 12:37 -0700, Eduard Zingerman wrote:
On Wed, 2024-09-04 at 14:19 +0000, Pu Lehui wrote:
From: Pu Lehui <pulehui@xxxxxxxxxx>
After commit b991fc520700 ("selftests/bpf: utility function to get
program disassembly after jit"), Makefile will link libLLVM* related
libraries to the user binary execution file when detecting that
feature-llvm is enabled, which will cause the local vmtest to appear as
follows mistake:
./test_progs: error while loading shared libraries: libLLVM-17.so.1:
cannot open shared object file: No such file or directory
Considering that the get_jited_program_text() function is a useful tool
for user debugging and will not be relied upon by the entire bpf
selftests, let's turn it off in local vmtest.
Signed-off-by: Pu Lehui <pulehui@xxxxxxxxxx>
---
I actually don't agree.
The __jited tag is supposed to be used by selftests
(granted, used by a single selftest for now).
Maybe add an option to forgo LLVM linkage when test_progs are compiled?
Regarding base image lacking libLLVM -- I need to fix this.
Please consider using my commit [1] instead of this patch, it forces
static linking form LLVM libraries, thus avoiding issues with rootfs.
(This was suggested by Andrii off list).
[1] https://git.kernel.org/pub/scm/linux/kernel/git/ez/bpf-next.git/commit/?h=selftest-llvm-static-linking&id=263bacf2f20fbc17204fd912609e26bdf6ac5a13
Happy to see this modification only on llvm lib. I test it works good
and have picked this in next version. Thanks
