add failing examples to work on

Author: varun-r-mallya

tests/failing_tests/vmlinux/Makefile

@@ -0,0 +1,19 @@
+BPF_CLANG := clang
+CFLAGS := -O2 -emit-llvm -target bpf -c
+
+SRC := $(wildcard *.bpf.c)
+LL := $(SRC:.bpf.c=.bpf.ll)
+OBJ := $(SRC:.bpf.c=.bpf.o)
+
+.PHONY: all clean
+
+all: $(LL) $(OBJ)
+
+%.bpf.o: %.bpf.c
+	$(BPF_CLANG) -O2 -g -target bpf -c $< -o $@
+
+%.bpf.ll: %.bpf.c
+	$(BPF_CLANG) $(CFLAGS) -g -S $< -o $@
+
+clean:
+	rm -f $(LL) $(OBJ)

tests/failing_tests/vmlinux/struct_field_access.py

@@ -0,0 +1,28 @@
+import logging
+
+from pythonbpf import bpf, section, bpfglobal, compile_to_ir
+from pythonbpf import compile  # noqa: F401
+from vmlinux import TASK_COMM_LEN  # noqa: F401
+from vmlinux import struct_trace_event_raw_sys_enter  # noqa: F401
+from ctypes import c_uint64, c_int32, c_int64
+from pythonbpf.maps import HashMap
+
+# from vmlinux import struct_uinput_device
+# from vmlinux import struct_blk_integrity_iter
+
+@bpf
+@section("tracepoint/syscalls/sys_enter_execve")
+def hello_world(ctx: struct_trace_event_raw_sys_enter) -> c_int64:
+    a = 2 + TASK_COMM_LEN + TASK_COMM_LEN
+    print(f"Hello, World{TASK_COMM_LEN} and {a}")
+    return c_int64(TASK_COMM_LEN + 2)
+
+
+@bpf
+@bpfglobal
+def LICENSE() -> str:
+    return "GPL"
+
+
+compile_to_ir("struct_field_access.py", "struct_field_access.ll", loglevel=logging.INFO)
+# compile()

tests/failing_tests/vmlinux/struct_field_tests.bpf.c

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+SEC("tp/syscalls/sys_enter_execve")
+int handle_setuid_entry(struct trace_event_raw_sys_enter *ctx) {
+  bpf_printk("args: %u", (unsigned int)ctx->args[0]);
+  return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";