From 7963bc3b5a6b115440c0d2b18948d4b69a903213 Mon Sep 17 00:00:00 2001
From: Johannes Bechberger <johannes.bechberger@sap.com>
Date: Sat, 17 Feb 2024 01:44:57 +0100
Subject: [PATCH] Fix vmlinux.h issue

---
 .../java/me/bechberger/ebpf/bpf/processor/Processor.java     | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/bpf-processor/src/main/java/me/bechberger/ebpf/bpf/processor/Processor.java b/bpf-processor/src/main/java/me/bechberger/ebpf/bpf/processor/Processor.java
index 4c271e1..ad3f5a1 100644
--- a/bpf-processor/src/main/java/me/bechberger/ebpf/bpf/processor/Processor.java
+++ b/bpf-processor/src/main/java/me/bechberger/ebpf/bpf/processor/Processor.java
@@ -272,8 +272,9 @@ private Path obtainPathToVMLinuxHeader() {
             }
             // else run bpftool btf dump file /sys/kernel/btf/vmlinux format c
             // save output to a temp file and return the path to the temp file
-            var tempFile = Files.createTempFile("vmlinux", ".h");
-            tempFile.toFile().deleteOnExit();
+            var tempDirectory = Files.createTempDirectory("vmlinux");
+            tempDirectory.toFile().deleteOnExit();
+            var tempFile = tempDirectory.resolve("vmlinux.h");
             var process = new ProcessBuilder("bpftool", "btf", "dump", "file", "/sys/kernel/btf/vmlinux", "format", "c")
                     .redirectOutput(tempFile.toFile())
                     .start();