From fd5d7b258694c1ef5d499cba37693ebd21fbc13f Mon Sep 17 00:00:00 2001
From: Dominique Martinet <asmadeus@codewreck.org>
Date: Fri, 3 Feb 2023 13:44:13 +0900
Subject: tests/bpf: add module BTF test

bpftrace 0.17 added module BTF support, check this works.

On bpftrace 0.16, this failed with the following error:
> ERROR: kfunc:nft_trans_alloc_gfp: no BTF data for the function
---
 nixos/tests/bpf.nix | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'nixos')

diff --git a/nixos/tests/bpf.nix b/nixos/tests/bpf.nix
index 5868e3bfcb4c..5dc97404772b 100644
--- a/nixos/tests/bpf.nix
+++ b/nixos/tests/bpf.nix
@@ -25,5 +25,9 @@ import ./make-test-python.nix ({ pkgs, ... }: {
     print(machine.succeed("bpftrace -e 'kprobe:schedule { "
         "    printf(\"tgid: %d\", ((struct task_struct*) curtask)->tgid); exit() "
         "}'"))
+    # module BTF (bpftrace >= 0.17)
+    print(machine.succeed("bpftrace -e 'kfunc:nft_trans_alloc_gfp { "
+        "    printf(\"portid: %d\\n\",args->ctx->portid); "
+        "} BEGIN { exit() }'"))
   '';
 })
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