add failing test

.github/workflows/format.yml

@@ -12,8 +12,8 @@ jobs:
     name: Format
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
-    - uses: actions/setup-python@v6
+    - uses: actions/setup-python@v5
       with:
         python-version: "3.x"
     - uses: pre-commit/action@v3.0.1

.gitignore

@@ -7,5 +7,3 @@ __pycache__/
 *.ll
 *.o
 .ipynb_checkpoints/
-vmlinux.py
-~*

.pre-commit-config.yaml

@@ -12,7 +12,7 @@
 #
 # See https://github.com/pre-commit/pre-commit
 
-exclude: 'vmlinux.py'
+exclude: 'vmlinux.*\.py$'
 
 ci:
   autoupdate_commit_msg: "chore: update pre-commit hooks"
@@ -21,7 +21,7 @@ ci:
 repos:
 # Standard hooks
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v6.0.0
+  rev: v4.6.0
   hooks:
   - id: check-added-large-files
   - id: check-case-conflict
@@ -36,19 +36,19 @@ repos:
   - id: trailing-whitespace
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: "v0.13.2"
+  rev: "v0.4.2"
   hooks:
     - id: ruff
       args: ["--fix", "--show-fixes"]
     - id: ruff-format
-#      exclude: ^(docs)|^(tests)|^(examples)
+      exclude: ^(tests/|examples/|docs/)
 
 # Checking static types
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: "v1.18.2"
+  rev: "v1.10.0"
   hooks:
     - id: mypy
-      exclude: ^(tests)|^(examples)
+      exclude: ^(tests/|examples/)
       additional_dependencies: [types-setuptools]
 
 # Changes tabs to spaces

README.md

@@ -83,14 +83,14 @@ def hist() -> HashMap:
 def hello(ctx: c_void_p) -> c_int64:
     process_id = pid()
     one = 1
-    prev = hist.lookup(process_id)
+    prev = hist().lookup(process_id)
     if prev:
         previous_value = prev + 1
         print(f"count: {previous_value} with {process_id}")
-        hist.update(process_id, previous_value)
+        hist().update(process_id, previous_value)
         return c_int64(0)
     else:
-        hist.update(process_id, one)
+        hist().update(process_id, one)
     return c_int64(0)
 
 

TODO.md

@@ -0,0 +1,13 @@
+## Short term
+
+- Implement enough functionality to port the BCC tutorial examples in PythonBPF
+- Static Typing
+- Add all maps
+- XDP support in pylibbpf
+- ringbuf support
+- recursive expression resolution
+
+## Long term
+
+- Refactor the codebase to be better than a hackathon project
+- Port to C++ and use actual LLVM?

examples/clone-matplotlib.ipynb

@@ -12,7 +12,7 @@
     "from pythonbpf import bpf, map, section, bpfglobal, BPF\n",
     "from pythonbpf.helper import pid\n",
     "from pythonbpf.maps import HashMap\n",
-    "from pylibbpf import BpfMap\n",
+    "from pylibbpf import *\n",
     "from ctypes import c_void_p, c_int64, c_uint64, c_int32\n",
     "import matplotlib.pyplot as plt"
    ]
@@ -308,7 +308,6 @@
     "def hist() -> HashMap:\n",
     "    return HashMap(key=c_int32, value=c_uint64, max_entries=4096)\n",
     "\n",
-    "\n",
     "@bpf\n",
     "@section(\"tracepoint/syscalls/sys_enter_clone\")\n",
     "def hello(ctx: c_void_p) -> c_int64:\n",
@@ -330,7 +329,6 @@
     "def LICENSE() -> str:\n",
     "    return \"GPL\"\n",
     "\n",
-    "\n",
     "b = BPF()"
    ]
   },
@@ -359,6 +357,7 @@
     }
    ],
    "source": [
+    "\n",
     "b.load_and_attach()\n",
     "hist = BpfMap(b, hist)\n",
     "print(\"Recording\")\n",

examples/hello_world.py

@@ -22,9 +22,5 @@ def LICENSE() -> str:
 
 b = BPF()
 b.load_and_attach()
-if b.is_loaded() and b.is_attached():
-    print("Successfully loaded and attached")
-else:
-    print("Could not load successfully")
 
 # Now cat /sys/kernel/debug/tracing/trace_pipe to see results of the execve syscall.

examples/kprobes.py

@@ -1,29 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, BPF
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("kretprobe/do_unlinkat")
-def hello_world(ctx: c_void_p) -> c_int64:
-    print("Hello, World!")
-    return c_int64(0)
-
-
-@bpf
-@section("kprobe/do_unlinkat")
-def hello_world2(ctx: c_void_p) -> c_int64:
-    print("Hello, World!")
-    return c_int64(0)
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-b = BPF()
-b.load_and_attach()
-while True:
-    print("running")
-# Now cat /sys/kernel/debug/tracing/trace_pipe to see results of unlink kprobe.

examples/struct_and_perf.py

@@ -27,7 +27,7 @@ def hello(ctx: c_void_p) -> c_int32:
     dataobj.pid = pid()
     dataobj.ts = ktime()
     # dataobj.comm = strobj
-    print(f"clone called at {dataobj.ts} by pid{dataobj.pid}, comm {strobj}")
+    print(f"clone called at {dataobj.ts} by pid" f"{dataobj.pid}, comm {strobj}")
     events.output(dataobj)
     return c_int32(0)
 

examples/sys_sync.py

@@ -21,17 +21,17 @@ def last() -> HashMap:
 @section("tracepoint/syscalls/sys_enter_sync")
 def do_trace(ctx: c_void_p) -> c_int64:
     key = 0
-    tsp = last.lookup(key)
+    tsp = last().lookup(key)
     if tsp:
         kt = ktime()
         delta = kt - tsp
         if delta < 1000000000:
             time_ms = delta // 1000000
             print(f"sync called within last second, last {time_ms} ms ago")
-        last.delete(key)
+        last().delete(key)
     else:
         kt = ktime()
-        last.update(key, kt)
+        last().update(key, kt)
     return c_int64(0)
 
 

examples/xdp_pass.py

@@ -1,8 +1,8 @@
-from pythonbpf import bpf, map, section, bpfglobal, compile, compile_to_ir
+from pythonbpf import bpf, map, section, bpfglobal, compile
 from pythonbpf.helper import XDP_PASS
 from pythonbpf.maps import HashMap
-from ctypes import c_int64, c_void_p
 
+from ctypes import c_void_p, c_int64
 
 # Instructions to how to run this program
 # 1. Install PythonBPF: pip install pythonbpf
@@ -41,5 +41,4 @@ def LICENSE() -> str:
     return "GPL"
 
 
-compile_to_ir("xdp_pass.py", "xdp_pass.ll")
 compile()

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pythonbpf"
-version = "0.1.4"
+version = "0.1.3"
 description = "Reduced Python frontend for eBPF"
 authors = [
   { name = "r41k0u", email="pragyanshchaturvedi18@gmail.com" },

pythonbpf/binary_ops.py

@@ -1,72 +1,71 @@
 import ast
 from llvmlite import ir
-from logging import Logger
-import logging
-
-logger: Logger = logging.getLogger(__name__)
 
 
 def recursive_dereferencer(var, builder):
     """dereference until primitive type comes out"""
-    # TODO: Not worrying about stack overflow for now
+    if var.type == ir.PointerType(ir.PointerType(ir.IntType(64))):
-    logger.info(f"Dereferencing {var}, type is {var.type}")
-    if isinstance(var.type, ir.PointerType):
         a = builder.load(var)
         return recursive_dereferencer(a, builder)
-    elif isinstance(var.type, ir.IntType):
+    elif var.type == ir.PointerType(ir.IntType(64)):
+        a = builder.load(var)
+        return recursive_dereferencer(a, builder)
+    elif var.type == ir.IntType(64):
         return var
     else:
         raise TypeError(f"Unsupported type for dereferencing: {var.type}")
 
 
-def get_operand_value(operand, builder, local_sym_tab):
+def handle_binary_op(rval, module, builder, var_name, local_sym_tab, map_sym_tab, func):
-    """Extract the value from an operand, handling variables and constants."""
+    print(module)
-    if isinstance(operand, ast.Name):
+    left = rval.left
-        if operand.id in local_sym_tab:
+    right = rval.right
-            return recursive_dereferencer(local_sym_tab[operand.id].var, builder)
-        raise ValueError(f"Undefined variable: {operand.id}")
-    elif isinstance(operand, ast.Constant):
-        if isinstance(operand.value, int):
-            return ir.Constant(ir.IntType(64), operand.value)
-        raise TypeError(f"Unsupported constant type: {type(operand.value)}")
-    elif isinstance(operand, ast.BinOp):
-        return handle_binary_op_impl(operand, builder, local_sym_tab)
-    raise TypeError(f"Unsupported operand type: {type(operand)}")
-
-
-def handle_binary_op_impl(rval, builder, local_sym_tab):
     op = rval.op
-    left = get_operand_value(rval.left, builder, local_sym_tab)
-    right = get_operand_value(rval.right, builder, local_sym_tab)
-    logger.info(f"left is {left}, right is {right}, op is {op}")
 
-    # Map AST operation nodes to LLVM IR builder methods
+    # Handle left operand
-    op_map = {
+    if isinstance(left, ast.Name):
-        ast.Add: builder.add,
+        if left.id in local_sym_tab:
-        ast.Sub: builder.sub,
+            left = recursive_dereferencer(local_sym_tab[left.id][0], builder)
-        ast.Mult: builder.mul,
+        else:
-        ast.Div: builder.sdiv,
+            raise SyntaxError(f"Undefined variable: {left.id}")
-        ast.Mod: builder.srem,
+    elif isinstance(left, ast.Constant):
-        ast.LShift: builder.shl,
+        left = ir.Constant(ir.IntType(64), left.value)
-        ast.RShift: builder.lshr,
+    else:
-        ast.BitOr: builder.or_,
+        raise SyntaxError("Unsupported left operand type")
-        ast.BitXor: builder.xor,
-        ast.BitAnd: builder.and_,
-        ast.FloorDiv: builder.udiv,
-    }
 
-    if type(op) in op_map:
+    if isinstance(right, ast.Name):
-        result = op_map[type(op)](left, right)
+        if right.id in local_sym_tab:
-        return result
+            right = recursive_dereferencer(local_sym_tab[right.id][0], builder)
+        else:
+            raise SyntaxError(f"Undefined variable: {right.id}")
+    elif isinstance(right, ast.Constant):
+        right = ir.Constant(ir.IntType(64), right.value)
+    else:
+        raise SyntaxError("Unsupported right operand type")
+
+    print(f"left is {left}, right is {right}, op is {op}")
+
+    if isinstance(op, ast.Add):
+        builder.store(builder.add(left, right), local_sym_tab[var_name][0])
+    elif isinstance(op, ast.Sub):
+        builder.store(builder.sub(left, right), local_sym_tab[var_name][0])
+    elif isinstance(op, ast.Mult):
+        builder.store(builder.mul(left, right), local_sym_tab[var_name][0])
+    elif isinstance(op, ast.Div):
+        builder.store(builder.sdiv(left, right), local_sym_tab[var_name][0])
+    elif isinstance(op, ast.Mod):
+        builder.store(builder.srem(left, right), local_sym_tab[var_name][0])
+    elif isinstance(op, ast.LShift):
+        builder.store(builder.shl(left, right), local_sym_tab[var_name][0])
+    elif isinstance(op, ast.RShift):
+        builder.store(builder.lshr(left, right), local_sym_tab[var_name][0])
+    elif isinstance(op, ast.BitOr):
+        builder.store(builder.or_(left, right), local_sym_tab[var_name][0])
+    elif isinstance(op, ast.BitXor):
+        builder.store(builder.xor(left, right), local_sym_tab[var_name][0])
+    elif isinstance(op, ast.BitAnd):
+        builder.store(builder.and_(left, right), local_sym_tab[var_name][0])
+    elif isinstance(op, ast.FloorDiv):
+        builder.store(builder.udiv(left, right), local_sym_tab[var_name][0])
     else:
         raise SyntaxError("Unsupported binary operation")
-
-
-def handle_binary_op(rval, builder, var_name, local_sym_tab):
-    result = handle_binary_op_impl(rval, builder, local_sym_tab)
-    if var_name and var_name in local_sym_tab:
-        logger.info(
-            f"Storing result {result} into variable {local_sym_tab[var_name].var}"
-        )
-        builder.store(result, local_sym_tab[var_name].var)
-    return result, result.type

pythonbpf/codegen.py

@@ -1,28 +1,19 @@
 import ast
 from llvmlite import ir
 from .license_pass import license_processing
-from .functions import func_proc
+from .functions_pass import func_proc
 from .maps import maps_proc
 from .structs import structs_proc
-from .vmlinux_parser import vmlinux_proc
+from .globals_pass import globals_processing
-from .globals_pass import (
+from .debuginfo import DW_LANG_C11, DwarfBehaviorEnum
-    globals_list_creation,
-    globals_processing,
-    populate_global_symbol_table,
-)
-from .debuginfo import DW_LANG_C11, DwarfBehaviorEnum, DebugInfoGenerator
 import os
 import subprocess
 import inspect
 from pathlib import Path
 from pylibbpf import BpfProgram
 import tempfile
-from logging import Logger
-import logging
 
-logger: Logger = logging.getLogger(__name__)
+VERSION = "v0.1.3"
-
-VERSION = "v0.1.4"
 
 
 def find_bpf_chunks(tree):
@@ -39,28 +30,21 @@ def find_bpf_chunks(tree):
 
 def processor(source_code, filename, module):
     tree = ast.parse(source_code, filename)
-    logger.debug(ast.dump(tree, indent=4))
+    print(ast.dump(tree, indent=4))
 
     bpf_chunks = find_bpf_chunks(tree)
     for func_node in bpf_chunks:
-        logger.info(f"Found BPF function/struct: {func_node.name}")
+        print(f"Found BPF function/struct: {func_node.name}")
-
-    vmlinux_proc(tree, module)
-    populate_global_symbol_table(tree, module)
-    license_processing(tree, module)
-    globals_processing(tree, module)
 
     structs_sym_tab = structs_proc(tree, module, bpf_chunks)
     map_sym_tab = maps_proc(tree, module, bpf_chunks)
     func_proc(tree, module, bpf_chunks, map_sym_tab, structs_sym_tab)
 
-    globals_list_creation(tree, module)
+    license_processing(tree, module)
+    globals_processing(tree, module)
 
 
-def compile_to_ir(filename: str, output: str, loglevel=logging.INFO):
+def compile_to_ir(filename: str, output: str):
-    logging.basicConfig(
-        level=loglevel, format="%(asctime)s [%(levelname)s] %(name)s: %(message)s"
-    )
     with open(filename) as f:
         source = f.read()
 
@@ -69,17 +53,33 @@ def compile_to_ir(filename: str, output: str, loglevel=logging.INFO):
     module.triple = "bpf"
 
     if not hasattr(module, "_debug_compile_unit"):
-        debug_generator = DebugInfoGenerator(module)
+        module._file_metadata = module.add_debug_info(
-        debug_generator.generate_file_metadata(filename, os.path.dirname(filename))
+            "DIFile",
-        debug_generator.generate_debug_cu(
+            {  # type: ignore
-            DW_LANG_C11,
+                "filename": filename,
-            f"PythonBPF {VERSION}",
+                "directory": os.path.dirname(filename),
-            True,  # TODO: This is probably not true
+            },
+        )
+
+        module._debug_compile_unit = module.add_debug_info(
+            "DICompileUnit",
+            {  # type: ignore
+                "language": DW_LANG_C11,
+                "file": module._file_metadata,  # type: ignore
+                "producer": f"PythonBPF {VERSION}",
+                "isOptimized": True,  # TODO: This is probably not true
                 # TODO: add a global field here that keeps track of all the globals. Works without it, but I think it might
                 # be required for kprobes.
-            True,
+                "runtimeVersion": 0,
+                "emissionKind": 1,
+                "splitDebugInlining": False,
+                "nameTableKind": 0,
+            },
+            is_distinct=True,
         )
 
+        module.add_named_metadata("llvm.dbg.cu", module._debug_compile_unit)  # type: ignore
+
     processor(source, filename, module)
 
     wchar_size = module.add_metadata(
@@ -121,7 +121,7 @@ def compile_to_ir(filename: str, output: str, loglevel=logging.INFO):
 
     module.add_named_metadata("llvm.ident", [f"PythonBPF {VERSION}"])
 
-    logger.info(f"IR written to {output}")
+    print(f"IR written to {output}")
     with open(output, "w") as f:
         f.write(f'source_filename = "{filename}"\n')
         f.write(str(module))
@@ -130,7 +130,7 @@ def compile_to_ir(filename: str, output: str, loglevel=logging.INFO):
     return output
 
 
-def compile(loglevel=logging.INFO) -> bool:
+def compile() -> bool:
     # Look one level up the stack to the caller of this function
     caller_frame = inspect.stack()[1]
     caller_file = Path(caller_frame.filename).resolve()
@@ -139,9 +139,7 @@ def compile(loglevel=logging.INFO) -> bool:
     o_file = caller_file.with_suffix(".o")
 
     success = True
-    success = (
+    success = compile_to_ir(str(caller_file), str(ll_file)) and success
-        compile_to_ir(str(caller_file), str(ll_file), loglevel=loglevel) and success
-    )
 
     success = bool(
         subprocess.run(
@@ -159,11 +157,11 @@ def compile(loglevel=logging.INFO) -> bool:
         and success
     )
 
-    logger.info(f"Object written to {o_file}")
+    print(f"Object written to {o_file}")
     return success
 
 
-def BPF(loglevel=logging.INFO) -> BpfProgram:
+def BPF() -> BpfProgram:
     caller_frame = inspect.stack()[1]
     src = inspect.getsource(caller_frame.frame)
     with tempfile.NamedTemporaryFile(
@@ -176,7 +174,7 @@ def BPF(loglevel=logging.INFO) -> BpfProgram:
         f.write(src)
         f.flush()
         source = f.name
-        compile_to_ir(source, str(inter.name), loglevel=loglevel)
+        compile_to_ir(source, str(inter.name))
         subprocess.run(
             [
                 "llc",

pythonbpf/debuginfo/debug_info_generator.py

@@ -12,34 +12,6 @@ class DebugInfoGenerator:
         self.module = module
         self._type_cache = {}  # Cache for common debug types
 
-    def generate_file_metadata(self, filename, dirname):
-        self.module._file_metadata = self.module.add_debug_info(
-            "DIFile",
-            {  # type: ignore
-                "filename": filename,
-                "directory": dirname,
-            },
-        )
-
-    def generate_debug_cu(
-        self, language, producer: str, is_optimized: bool, is_distinct: bool
-    ):
-        self.module._debug_compile_unit = self.module.add_debug_info(
-            "DICompileUnit",
-            {  # type: ignore
-                "language": language,
-                "file": self.module._file_metadata,  # type: ignore
-                "producer": producer,
-                "isOptimized": is_optimized,
-                "runtimeVersion": 0,
-                "emissionKind": 1,
-                "splitDebugInlining": False,
-                "nameTableKind": 0,
-            },
-            is_distinct=is_distinct,
-        )
-        self.module.add_named_metadata("llvm.dbg.cu", self.module._debug_compile_unit)  # type: ignore
-
     def get_basic_type(self, name: str, size: int, encoding: int) -> Any:
         """Get or create a basic type with caching"""
         key = (name, size, encoding)

pythonbpf/expr/__init__.py

@@ -1,4 +0,0 @@
-from .expr_pass import eval_expr, handle_expr
-from .type_normalization import convert_to_bool
-
-__all__ = ["eval_expr", "handle_expr", "convert_to_bool"]

pythonbpf/expr/expr_pass.py

@@ -1,445 +0,0 @@
-import ast
-from llvmlite import ir
-from logging import Logger
-import logging
-from typing import Dict
-
-from pythonbpf.type_deducer import ctypes_to_ir, is_ctypes
-from .type_normalization import convert_to_bool, handle_comparator
-
-logger: Logger = logging.getLogger(__name__)
-
-
-def _handle_name_expr(expr: ast.Name, local_sym_tab: Dict, builder: ir.IRBuilder):
-    """Handle ast.Name expressions."""
-    if expr.id in local_sym_tab:
-        var = local_sym_tab[expr.id].var
-        val = builder.load(var)
-        return val, local_sym_tab[expr.id].ir_type
-    else:
-        logger.info(f"Undefined variable {expr.id}")
-        return None
-
-
-def _handle_constant_expr(expr: ast.Constant):
-    """Handle ast.Constant expressions."""
-    if isinstance(expr.value, int) or isinstance(expr.value, bool):
-        return ir.Constant(ir.IntType(64), int(expr.value)), ir.IntType(64)
-    else:
-        logger.error("Unsupported constant type")
-        return None
-
-
-def _handle_attribute_expr(
-    expr: ast.Attribute,
-    local_sym_tab: Dict,
-    structs_sym_tab: Dict,
-    builder: ir.IRBuilder,
-):
-    """Handle ast.Attribute expressions for struct field access."""
-    if isinstance(expr.value, ast.Name):
-        var_name = expr.value.id
-        attr_name = expr.attr
-        if var_name in local_sym_tab:
-            var_ptr, var_type, var_metadata = local_sym_tab[var_name]
-            logger.info(f"Loading attribute {attr_name} from variable {var_name}")
-            logger.info(f"Variable type: {var_type}, Variable ptr: {var_ptr}")
-            metadata = structs_sym_tab[var_metadata]
-            if attr_name in metadata.fields:
-                gep = metadata.gep(builder, var_ptr, attr_name)
-                val = builder.load(gep)
-                field_type = metadata.field_type(attr_name)
-                return val, field_type
-    return None
-
-
-def _handle_deref_call(expr: ast.Call, local_sym_tab: Dict, builder: ir.IRBuilder):
-    """Handle deref function calls."""
-    logger.info(f"Handling deref {ast.dump(expr)}")
-    if len(expr.args) != 1:
-        logger.info("deref takes exactly one argument")
-        return None
-
-    arg = expr.args[0]
-    if (
-        isinstance(arg, ast.Call)
-        and isinstance(arg.func, ast.Name)
-        and arg.func.id == "deref"
-    ):
-        logger.info("Multiple deref not supported")
-        return None
-
-    if isinstance(arg, ast.Name):
-        if arg.id in local_sym_tab:
-            arg_ptr = local_sym_tab[arg.id].var
-        else:
-            logger.info(f"Undefined variable {arg.id}")
-            return None
-    else:
-        logger.info("Unsupported argument type for deref")
-        return None
-
-    if arg_ptr is None:
-        logger.info("Failed to evaluate deref argument")
-        return None
-
-    # Load the value from pointer
-    val = builder.load(arg_ptr)
-    return val, local_sym_tab[arg.id].ir_type
-
-
-def _handle_ctypes_call(
-    func,
-    module,
-    builder,
-    expr,
-    local_sym_tab,
-    map_sym_tab,
-    structs_sym_tab=None,
-):
-    """Handle ctypes type constructor calls."""
-    if len(expr.args) != 1:
-        logger.info("ctypes constructor takes exactly one argument")
-        return None
-
-    arg = expr.args[0]
-    val = eval_expr(
-        func,
-        module,
-        builder,
-        arg,
-        local_sym_tab,
-        map_sym_tab,
-        structs_sym_tab,
-    )
-    if val is None:
-        logger.info("Failed to evaluate argument to ctypes constructor")
-        return None
-    call_type = expr.func.id
-    expected_type = ctypes_to_ir(call_type)
-
-    if val[1] != expected_type:
-        # NOTE: We are only considering casting to and from int types for now
-        if isinstance(val[1], ir.IntType) and isinstance(expected_type, ir.IntType):
-            if val[1].width < expected_type.width:
-                val = (builder.sext(val[0], expected_type), expected_type)
-            else:
-                val = (builder.trunc(val[0], expected_type), expected_type)
-        else:
-            raise ValueError(f"Type mismatch: expected {expected_type}, got {val[1]}")
-    return val
-
-
-def _handle_compare(
-    func, module, builder, cond, local_sym_tab, map_sym_tab, structs_sym_tab=None
-):
-    """Handle ast.Compare expressions."""
-
-    if len(cond.ops) != 1 or len(cond.comparators) != 1:
-        logger.error("Only single comparisons are supported")
-        return None
-    lhs = eval_expr(
-        func,
-        module,
-        builder,
-        cond.left,
-        local_sym_tab,
-        map_sym_tab,
-        structs_sym_tab,
-    )
-    rhs = eval_expr(
-        func,
-        module,
-        builder,
-        cond.comparators[0],
-        local_sym_tab,
-        map_sym_tab,
-        structs_sym_tab,
-    )
-
-    if lhs is None or rhs is None:
-        logger.error("Failed to evaluate comparison operands")
-        return None
-
-    lhs, _ = lhs
-    rhs, _ = rhs
-    return handle_comparator(func, builder, cond.ops[0], lhs, rhs)
-
-
-def _handle_unary_op(
-    func,
-    module,
-    builder,
-    expr: ast.UnaryOp,
-    local_sym_tab,
-    map_sym_tab,
-    structs_sym_tab=None,
-):
-    """Handle ast.UnaryOp expressions."""
-    if not isinstance(expr.op, ast.Not):
-        logger.error("Only 'not' unary operator is supported")
-        return None
-
-    operand = eval_expr(
-        func, module, builder, expr.operand, local_sym_tab, map_sym_tab, structs_sym_tab
-    )
-    if operand is None:
-        logger.error("Failed to evaluate operand for unary operation")
-        return None
-
-    operand_val, operand_type = operand
-    true_const = ir.Constant(ir.IntType(1), 1)
-    result = builder.xor(convert_to_bool(builder, operand_val), true_const)
-    return result, ir.IntType(1)
-
-
-def _handle_and_op(func, builder, expr, local_sym_tab, map_sym_tab, structs_sym_tab):
-    """Handle `and` boolean operations."""
-
-    logger.debug(f"Handling 'and' operator with {len(expr.values)} operands")
-
-    merge_block = func.append_basic_block(name="and.merge")
-    false_block = func.append_basic_block(name="and.false")
-
-    incoming_values = []
-
-    for i, value in enumerate(expr.values):
-        is_last = i == len(expr.values) - 1
-
-        # Evaluate current operand
-        operand_result = eval_expr(
-            func, None, builder, value, local_sym_tab, map_sym_tab, structs_sym_tab
-        )
-        if operand_result is None:
-            logger.error(f"Failed to evaluate operand {i} in 'and' expression")
-            return None
-
-        operand_val, operand_type = operand_result
-
-        # Convert to boolean if needed
-        operand_bool = convert_to_bool(builder, operand_val)
-        current_block = builder.block
-
-        if is_last:
-            # Last operand: result is this value
-            builder.branch(merge_block)
-            incoming_values.append((operand_bool, current_block))
-        else:
-            # Not last: check if true, continue or short-circuit
-            next_check = func.append_basic_block(name=f"and.check_{i + 1}")
-            builder.cbranch(operand_bool, next_check, false_block)
-            builder.position_at_end(next_check)
-
-    # False block: short-circuit with false
-    builder.position_at_end(false_block)
-    builder.branch(merge_block)
-    false_value = ir.Constant(ir.IntType(1), 0)
-    incoming_values.append((false_value, false_block))
-
-    # Merge block: phi node
-    builder.position_at_end(merge_block)
-    phi = builder.phi(ir.IntType(1), name="and.result")
-    for val, block in incoming_values:
-        phi.add_incoming(val, block)
-
-    logger.debug(f"Generated 'and' with {len(incoming_values)} incoming values")
-    return phi, ir.IntType(1)
-
-
-def _handle_or_op(func, builder, expr, local_sym_tab, map_sym_tab, structs_sym_tab):
-    """Handle `or` boolean operations."""
-
-    logger.debug(f"Handling 'or' operator with {len(expr.values)} operands")
-
-    merge_block = func.append_basic_block(name="or.merge")
-    true_block = func.append_basic_block(name="or.true")
-
-    incoming_values = []
-
-    for i, value in enumerate(expr.values):
-        is_last = i == len(expr.values) - 1
-
-        # Evaluate current operand
-        operand_result = eval_expr(
-            func, None, builder, value, local_sym_tab, map_sym_tab, structs_sym_tab
-        )
-        if operand_result is None:
-            logger.error(f"Failed to evaluate operand {i} in 'or' expression")
-            return None
-
-        operand_val, operand_type = operand_result
-
-        # Convert to boolean if needed
-        operand_bool = convert_to_bool(builder, operand_val)
-        current_block = builder.block
-
-        if is_last:
-            # Last operand: result is this value
-            builder.branch(merge_block)
-            incoming_values.append((operand_bool, current_block))
-        else:
-            # Not last: check if false, continue or short-circuit
-            next_check = func.append_basic_block(name=f"or.check_{i + 1}")
-            builder.cbranch(operand_bool, true_block, next_check)
-            builder.position_at_end(next_check)
-
-    # True block: short-circuit with true
-    builder.position_at_end(true_block)
-    builder.branch(merge_block)
-    true_value = ir.Constant(ir.IntType(1), 1)
-    incoming_values.append((true_value, true_block))
-
-    # Merge block: phi node
-    builder.position_at_end(merge_block)
-    phi = builder.phi(ir.IntType(1), name="or.result")
-    for val, block in incoming_values:
-        phi.add_incoming(val, block)
-
-    logger.debug(f"Generated 'or' with {len(incoming_values)} incoming values")
-    return phi, ir.IntType(1)
-
-
-def _handle_boolean_op(
-    func,
-    module,
-    builder,
-    expr: ast.BoolOp,
-    local_sym_tab,
-    map_sym_tab,
-    structs_sym_tab=None,
-):
-    """Handle `and` and `or` boolean operations."""
-
-    if isinstance(expr.op, ast.And):
-        return _handle_and_op(
-            func, builder, expr, local_sym_tab, map_sym_tab, structs_sym_tab
-        )
-    elif isinstance(expr.op, ast.Or):
-        return _handle_or_op(
-            func, builder, expr, local_sym_tab, map_sym_tab, structs_sym_tab
-        )
-    else:
-        logger.error(f"Unsupported boolean operator: {type(expr.op).__name__}")
-        return None
-
-
-def eval_expr(
-    func,
-    module,
-    builder,
-    expr,
-    local_sym_tab,
-    map_sym_tab,
-    structs_sym_tab=None,
-):
-    logger.info(f"Evaluating expression: {ast.dump(expr)}")
-    if isinstance(expr, ast.Name):
-        return _handle_name_expr(expr, local_sym_tab, builder)
-    elif isinstance(expr, ast.Constant):
-        return _handle_constant_expr(expr)
-    elif isinstance(expr, ast.Call):
-        if isinstance(expr.func, ast.Name) and expr.func.id == "deref":
-            return _handle_deref_call(expr, local_sym_tab, builder)
-
-        if isinstance(expr.func, ast.Name) and is_ctypes(expr.func.id):
-            return _handle_ctypes_call(
-                func,
-                module,
-                builder,
-                expr,
-                local_sym_tab,
-                map_sym_tab,
-                structs_sym_tab,
-            )
-
-        # delayed import to avoid circular dependency
-        from pythonbpf.helper import HelperHandlerRegistry, handle_helper_call
-
-        if isinstance(expr.func, ast.Name) and HelperHandlerRegistry.has_handler(
-            expr.func.id
-        ):
-            return handle_helper_call(
-                expr,
-                module,
-                builder,
-                func,
-                local_sym_tab,
-                map_sym_tab,
-                structs_sym_tab,
-            )
-        elif isinstance(expr.func, ast.Attribute):
-            logger.info(f"Handling method call: {ast.dump(expr.func)}")
-            if isinstance(expr.func.value, ast.Call) and isinstance(
-                expr.func.value.func, ast.Name
-            ):
-                method_name = expr.func.attr
-                if HelperHandlerRegistry.has_handler(method_name):
-                    return handle_helper_call(
-                        expr,
-                        module,
-                        builder,
-                        func,
-                        local_sym_tab,
-                        map_sym_tab,
-                        structs_sym_tab,
-                    )
-            elif isinstance(expr.func.value, ast.Name):
-                obj_name = expr.func.value.id
-                method_name = expr.func.attr
-                if obj_name in map_sym_tab:
-                    if HelperHandlerRegistry.has_handler(method_name):
-                        return handle_helper_call(
-                            expr,
-                            module,
-                            builder,
-                            func,
-                            local_sym_tab,
-                            map_sym_tab,
-                            structs_sym_tab,
-                        )
-    elif isinstance(expr, ast.Attribute):
-        return _handle_attribute_expr(expr, local_sym_tab, structs_sym_tab, builder)
-    elif isinstance(expr, ast.BinOp):
-        from pythonbpf.binary_ops import handle_binary_op
-
-        return handle_binary_op(expr, builder, None, local_sym_tab)
-    elif isinstance(expr, ast.Compare):
-        return _handle_compare(
-            func, module, builder, expr, local_sym_tab, map_sym_tab, structs_sym_tab
-        )
-    elif isinstance(expr, ast.UnaryOp):
-        return _handle_unary_op(
-            func, module, builder, expr, local_sym_tab, map_sym_tab, structs_sym_tab
-        )
-    elif isinstance(expr, ast.BoolOp):
-        return _handle_boolean_op(
-            func, module, builder, expr, local_sym_tab, map_sym_tab, structs_sym_tab
-        )
-    logger.info("Unsupported expression evaluation")
-    return None
-
-
-def handle_expr(
-    func,
-    module,
-    builder,
-    expr,
-    local_sym_tab,
-    map_sym_tab,
-    structs_sym_tab,
-):
-    """Handle expression statements in the function body."""
-    logger.info(f"Handling expression: {ast.dump(expr)}")
-    call = expr.value
-    if isinstance(call, ast.Call):
-        eval_expr(
-            func,
-            module,
-            builder,
-            call,
-            local_sym_tab,
-            map_sym_tab,
-            structs_sym_tab,
-        )
-    else:
-        logger.info("Unsupported expression type")

pythonbpf/expr/type_normalization.py

@@ -1,128 +0,0 @@
-from llvmlite import ir
-import logging
-import ast
-
-logger = logging.getLogger(__name__)
-
-COMPARISON_OPS = {
-    ast.Eq: "==",
-    ast.NotEq: "!=",
-    ast.Lt: "<",
-    ast.LtE: "<=",
-    ast.Gt: ">",
-    ast.GtE: ">=",
-    ast.Is: "==",
-    ast.IsNot: "!=",
-}
-
-
-def _get_base_type_and_depth(ir_type):
-    """Get the base type for pointer types."""
-    cur_type = ir_type
-    depth = 0
-    while isinstance(cur_type, ir.PointerType):
-        depth += 1
-        cur_type = cur_type.pointee
-    return cur_type, depth
-
-
-def _deref_to_depth(func, builder, val, target_depth):
-    """Dereference a pointer to a certain depth."""
-
-    cur_val = val
-    cur_type = val.type
-
-    for depth in range(target_depth):
-        if not isinstance(val.type, ir.PointerType):
-            logger.error("Cannot dereference further, non-pointer type")
-            return None
-
-        # dereference with null check
-        pointee_type = cur_type.pointee
-        null_check_block = builder.block
-        not_null_block = func.append_basic_block(name=f"deref_not_null_{depth}")
-        merge_block = func.append_basic_block(name=f"deref_merge_{depth}")
-
-        null_ptr = ir.Constant(cur_type, None)
-        is_not_null = builder.icmp_signed("!=", cur_val, null_ptr)
-        logger.debug(f"Inserted null check for pointer at depth {depth}")
-
-        builder.cbranch(is_not_null, not_null_block, merge_block)
-
-        builder.position_at_end(not_null_block)
-        dereferenced_val = builder.load(cur_val)
-        logger.debug(f"Dereferenced to depth {depth - 1}, type: {pointee_type}")
-        builder.branch(merge_block)
-
-        builder.position_at_end(merge_block)
-        phi = builder.phi(pointee_type, name=f"deref_result_{depth}")
-
-        zero_value = (
-            ir.Constant(pointee_type, 0)
-            if isinstance(pointee_type, ir.IntType)
-            else ir.Constant(pointee_type, None)
-        )
-        phi.add_incoming(zero_value, null_check_block)
-
-        phi.add_incoming(dereferenced_val, not_null_block)
-
-        # Continue with phi result
-        cur_val = phi
-        cur_type = pointee_type
-    return cur_val
-
-
-def _normalize_types(func, builder, lhs, rhs):
-    """Normalize types for comparison."""
-
-    logger.info(f"Normalizing types: {lhs.type} vs {rhs.type}")
-    if isinstance(lhs.type, ir.IntType) and isinstance(rhs.type, ir.IntType):
-        if lhs.type.width < rhs.type.width:
-            lhs = builder.sext(lhs, rhs.type)
-        else:
-            rhs = builder.sext(rhs, lhs.type)
-        return lhs, rhs
-    elif not isinstance(lhs.type, ir.PointerType) and not isinstance(
-        rhs.type, ir.PointerType
-    ):
-        logger.error(f"Type mismatch: {lhs.type} vs {rhs.type}")
-        return None, None
-    else:
-        lhs_base, lhs_depth = _get_base_type_and_depth(lhs.type)
-        rhs_base, rhs_depth = _get_base_type_and_depth(rhs.type)
-        if lhs_base == rhs_base:
-            if lhs_depth < rhs_depth:
-                rhs = _deref_to_depth(func, builder, rhs, rhs_depth - lhs_depth)
-            elif rhs_depth < lhs_depth:
-                lhs = _deref_to_depth(func, builder, lhs, lhs_depth - rhs_depth)
-            return _normalize_types(func, builder, lhs, rhs)
-
-
-def convert_to_bool(builder, val):
-    """Convert a value to boolean."""
-    if val.type == ir.IntType(1):
-        return val
-    if isinstance(val.type, ir.PointerType):
-        zero = ir.Constant(val.type, None)
-    else:
-        zero = ir.Constant(val.type, 0)
-    return builder.icmp_signed("!=", val, zero)
-
-
-def handle_comparator(func, builder, op, lhs, rhs):
-    """Handle comparison operations."""
-
-    if lhs.type != rhs.type:
-        lhs, rhs = _normalize_types(func, builder, lhs, rhs)
-
-    if lhs is None or rhs is None:
-        return None
-
-    if type(op) not in COMPARISON_OPS:
-        logger.error(f"Unsupported comparison operator: {type(op)}")
-        return None
-
-    predicate = COMPARISON_OPS[type(op)]
-    result = builder.icmp_signed(predicate, lhs, rhs)
-    logger.debug(f"Comparison result: {result}")
-    return result, ir.IntType(1)

pythonbpf/expr_pass.py

@@ -0,0 +1,155 @@
+import ast
+from llvmlite import ir
+
+
+def eval_expr(
+    func,
+    module,
+    builder,
+    expr,
+    local_sym_tab,
+    map_sym_tab,
+    structs_sym_tab=None,
+    local_var_metadata=None,
+):
+    print(f"Evaluating expression: {ast.dump(expr)}")
+    print(local_var_metadata)
+    if isinstance(expr, ast.Name):
+        if expr.id in local_sym_tab:
+            var = local_sym_tab[expr.id][0]
+            val = builder.load(var)
+            return val, local_sym_tab[expr.id][1]  # return value and type
+        else:
+            print(f"Undefined variable {expr.id}")
+            return None
+    elif isinstance(expr, ast.Constant):
+        if isinstance(expr.value, int):
+            return ir.Constant(ir.IntType(64), expr.value), ir.IntType(64)
+        elif isinstance(expr.value, bool):
+            return ir.Constant(ir.IntType(1), int(expr.value)), ir.IntType(1)
+        else:
+            print("Unsupported constant type")
+            return None
+    elif isinstance(expr, ast.Call):
+        # delayed import to avoid circular dependency
+        from pythonbpf.helper import HelperHandlerRegistry, handle_helper_call
+
+        if isinstance(expr.func, ast.Name):
+            # check deref
+            if expr.func.id == "deref":
+                print(f"Handling deref {ast.dump(expr)}")
+                if len(expr.args) != 1:
+                    print("deref takes exactly one argument")
+                    return None
+                arg = expr.args[0]
+                if (
+                    isinstance(arg, ast.Call)
+                    and isinstance(arg.func, ast.Name)
+                    and arg.func.id == "deref"
+                ):
+                    print("Multiple deref not supported")
+                    return None
+                if isinstance(arg, ast.Name):
+                    if arg.id in local_sym_tab:
+                        arg = local_sym_tab[arg.id][0]
+                    else:
+                        print(f"Undefined variable {arg.id}")
+                        return None
+                if arg is None:
+                    print("Failed to evaluate deref argument")
+                    return None
+                # Since we are handling only name case, directly take type from sym tab
+                val = builder.load(arg)
+                return val, local_sym_tab[expr.args[0].id][1]
+
+            # check for helpers
+            if HelperHandlerRegistry.has_handler(expr.func.id):
+                return handle_helper_call(
+                    expr,
+                    module,
+                    builder,
+                    func,
+                    local_sym_tab,
+                    map_sym_tab,
+                    structs_sym_tab,
+                    local_var_metadata,
+                )
+        elif isinstance(expr.func, ast.Attribute):
+            print(f"Handling method call: {ast.dump(expr.func)}")
+            if isinstance(expr.func.value, ast.Call) and isinstance(
+                expr.func.value.func, ast.Name
+            ):
+                method_name = expr.func.attr
+                if HelperHandlerRegistry.has_handler(method_name):
+                    return handle_helper_call(
+                        expr,
+                        module,
+                        builder,
+                        func,
+                        local_sym_tab,
+                        map_sym_tab,
+                        structs_sym_tab,
+                        local_var_metadata,
+                    )
+            elif isinstance(expr.func.value, ast.Name):
+                obj_name = expr.func.value.id
+                method_name = expr.func.attr
+                if obj_name in map_sym_tab:
+                    if HelperHandlerRegistry.has_handler(method_name):
+                        return handle_helper_call(
+                            expr,
+                            module,
+                            builder,
+                            func,
+                            local_sym_tab,
+                            map_sym_tab,
+                            structs_sym_tab,
+                            local_var_metadata,
+                        )
+    elif isinstance(expr, ast.Attribute):
+        if isinstance(expr.value, ast.Name):
+            var_name = expr.value.id
+            attr_name = expr.attr
+            if var_name in local_sym_tab:
+                var_ptr, var_type = local_sym_tab[var_name]
+                print(f"Loading attribute " f"{attr_name} from variable {var_name}")
+                print(f"Variable type: {var_type}, Variable ptr: {var_ptr}")
+                print(local_var_metadata)
+                if local_var_metadata and var_name in local_var_metadata:
+                    metadata = structs_sym_tab[local_var_metadata[var_name]]
+                    if attr_name in metadata.fields:
+                        gep = metadata.gep(builder, var_ptr, attr_name)
+                        val = builder.load(gep)
+                        field_type = metadata.field_type(attr_name)
+                        return val, field_type
+    print("Unsupported expression evaluation")
+    return None
+
+
+def handle_expr(
+    func,
+    module,
+    builder,
+    expr,
+    local_sym_tab,
+    map_sym_tab,
+    structs_sym_tab,
+    local_var_metadata,
+):
+    """Handle expression statements in the function body."""
+    print(f"Handling expression: {ast.dump(expr)}")
+    print(local_var_metadata)
+    call = expr.value
+    if isinstance(call, ast.Call):
+        eval_expr(
+            func,
+            module,
+            builder,
+            call,
+            local_sym_tab,
+            map_sym_tab,
+            structs_sym_tab,
+            local_var_metadata,
+        )
+    else:
+        print("Unsupported expression type")

pythonbpf/functions/__init__.py

@@ -1,3 +0,0 @@
-from .functions_pass import func_proc
-
-__all__ = ["func_proc"]

pythonbpf/functions/func_registry_handlers.py

@@ -1,22 +0,0 @@
-from typing import Dict
-
-
-class StatementHandlerRegistry:
-    """Registry for statement handlers."""
-
-    _handlers: Dict = {}
-
-    @classmethod
-    def register(cls, stmt_type):
-        """Register a handler for a specific statement type."""
-
-        def decorator(handler):
-            cls._handlers[stmt_type] = handler
-            return handler
-
-        return decorator
-
-    @classmethod
-    def __getitem__(cls, stmt_type):
-        """Get the handler for a specific statement type."""
-        return cls._handlers.get(stmt_type, None)

pythonbpf/functions/return_utils.py

@@ -1,45 +0,0 @@
-import logging
-import ast
-
-from llvmlite import ir
-
-logger: logging.Logger = logging.getLogger(__name__)
-
-XDP_ACTIONS = {
-    "XDP_ABORTED": 0,
-    "XDP_DROP": 1,
-    "XDP_PASS": 2,
-    "XDP_TX": 3,
-    "XDP_REDIRECT": 4,
-}
-
-
-def _handle_none_return(builder) -> bool:
-    """Handle return or return None -> returns 0."""
-    builder.ret(ir.Constant(ir.IntType(64), 0))
-    logger.debug("Generated default return: 0")
-    return True
-
-
-def _is_xdp_name(name: str) -> bool:
-    """Check if a name is an XDP action"""
-    return name in XDP_ACTIONS
-
-
-def _handle_xdp_return(stmt: ast.Return, builder, ret_type) -> bool:
-    """Handle XDP returns"""
-    if not isinstance(stmt.value, ast.Name):
-        return False
-
-    action_name = stmt.value.id
-
-    if action_name not in XDP_ACTIONS:
-        raise ValueError(
-            f"Unknown XDP action: {action_name}. Available: {XDP_ACTIONS.keys()}"
-        )
-        return False
-
-    value = XDP_ACTIONS[action_name]
-    builder.ret(ir.Constant(ret_type, value))
-    logger.debug(f"Generated XDP action return: {action_name} = {value}")
-    return True

pythonbpf/functions_pass.py

@@ -1,30 +1,13 @@
 from llvmlite import ir
 import ast
-import logging
 from typing import Any
-from dataclasses import dataclass
 
-from pythonbpf.helper import HelperHandlerRegistry, handle_helper_call
+from .helper import HelperHandlerRegistry, handle_helper_call
-from pythonbpf.type_deducer import ctypes_to_ir
+from .type_deducer import ctypes_to_ir
-from pythonbpf.binary_ops import handle_binary_op
+from .binary_ops import handle_binary_op
-from pythonbpf.expr import eval_expr, handle_expr, convert_to_bool
+from .expr_pass import eval_expr, handle_expr
 
-from .return_utils import _handle_none_return, _handle_xdp_return, _is_xdp_name
+local_var_metadata: dict[str | Any, Any] = {}
-
-
-logger = logging.getLogger(__name__)
-
-
-@dataclass
-class LocalSymbol:
-    var: ir.AllocaInstr
-    ir_type: ir.Type
-    metadata: Any = None
-
-    def __iter__(self):
-        yield self.var
-        yield self.ir_type
-        yield self.metadata
 
 
 def get_probe_string(func_node):
@@ -49,27 +32,28 @@ def handle_assign(
 ):
     """Handle assignment statements in the function body."""
     if len(stmt.targets) != 1:
-        logger.info("Unsupported multiassignment")
+        print("Unsupported multiassignment")
         return
 
     num_types = ("c_int32", "c_int64", "c_uint32", "c_uint64")
 
     target = stmt.targets[0]
-    logger.info(f"Handling assignment to {ast.dump(target)}")
+    print(f"Handling assignment to {ast.dump(target)}")
     if not isinstance(target, ast.Name) and not isinstance(target, ast.Attribute):
-        logger.info("Unsupported assignment target")
+        print("Unsupported assignment target")
         return
     var_name = target.id if isinstance(target, ast.Name) else target.value.id
     rval = stmt.value
     if isinstance(target, ast.Attribute):
         # struct field assignment
         field_name = target.attr
-        if var_name in local_sym_tab:
+        if var_name in local_sym_tab and var_name in local_var_metadata:
-            struct_type = local_sym_tab[var_name].metadata
+            struct_type = local_var_metadata[var_name]
             struct_info = structs_sym_tab[struct_type]
+
             if field_name in struct_info.fields:
                 field_ptr = struct_info.gep(
-                    builder, local_sym_tab[var_name].var, field_name
+                    builder, local_sym_tab[var_name][0], field_name
                 )
                 val = eval_expr(
                     func,
@@ -90,31 +74,28 @@ def handle_assign(
                     # print(f"Assigned to struct field {var_name}.{field_name}")
                     pass
                 if val is None:
-                    logger.info("Failed to evaluate struct field assignment")
+                    print("Failed to evaluate struct field assignment")
                     return
-                logger.info(field_ptr)
+                print(field_ptr)
                 builder.store(val[0], field_ptr)
-                logger.info(f"Assigned to struct field {var_name}.{field_name}")
+                print(f"Assigned to struct field {var_name}.{field_name}")
                 return
     elif isinstance(rval, ast.Constant):
         if isinstance(rval.value, bool):
             if rval.value:
-                builder.store(
+                builder.store(ir.Constant(ir.IntType(1), 1), local_sym_tab[var_name][0])
-                    ir.Constant(ir.IntType(1), 1), local_sym_tab[var_name].var
-                )
             else:
-                builder.store(
+                builder.store(ir.Constant(ir.IntType(1), 0), local_sym_tab[var_name][0])
-                    ir.Constant(ir.IntType(1), 0), local_sym_tab[var_name].var
+            print(f"Assigned constant {rval.value} to {var_name}")
-                )
-            logger.info(f"Assigned constant {rval.value} to {var_name}")
         elif isinstance(rval.value, int):
             # Assume c_int64 for now
             # var = builder.alloca(ir.IntType(64), name=var_name)
             # var.align = 8
             builder.store(
-                ir.Constant(ir.IntType(64), rval.value), local_sym_tab[var_name].var
+                ir.Constant(ir.IntType(64), rval.value), local_sym_tab[var_name][0]
             )
-            logger.info(f"Assigned constant {rval.value} to {var_name}")
+            # local_sym_tab[var_name] = var
+            print(f"Assigned constant {rval.value} to {var_name}")
         elif isinstance(rval.value, str):
             str_val = rval.value.encode("utf-8") + b"\x00"
             str_const = ir.Constant(
@@ -127,14 +108,14 @@ def handle_assign(
             global_str.global_constant = True
             global_str.initializer = str_const
             str_ptr = builder.bitcast(global_str, ir.PointerType(ir.IntType(8)))
-            builder.store(str_ptr, local_sym_tab[var_name].var)
+            builder.store(str_ptr, local_sym_tab[var_name][0])
-            logger.info(f"Assigned string constant '{rval.value}' to {var_name}")
+            print(f"Assigned string constant '{rval.value}' to {var_name}")
         else:
-            logger.info("Unsupported constant type")
+            print("Unsupported constant type")
     elif isinstance(rval, ast.Call):
         if isinstance(rval.func, ast.Name):
             call_type = rval.func.id
-            logger.info(f"Assignment call type: {call_type}")
+            print(f"Assignment call type: {call_type}")
             if (
                 call_type in num_types
                 and len(rval.args) == 1
@@ -145,12 +126,13 @@ def handle_assign(
                 # var = builder.alloca(ir_type, name=var_name)
                 # var.align = ir_type.width // 8
                 builder.store(
-                    ir.Constant(ir_type, rval.args[0].value),
+                    ir.Constant(ir_type, rval.args[0].value), local_sym_tab[var_name][0]
-                    local_sym_tab[var_name].var,
                 )
-                logger.info(
+                print(
-                    f"Assigned {call_type} constant {rval.args[0].value} to {var_name}"
+                    f"Assigned {call_type} constant "
+                    f"{rval.args[0].value} to {var_name}"
                 )
+                # local_sym_tab[var_name] = var
             elif HelperHandlerRegistry.has_handler(call_type):
                 # var = builder.alloca(ir.IntType(64), name=var_name)
                 # var.align = 8
@@ -162,11 +144,13 @@ def handle_assign(
                     local_sym_tab,
                     map_sym_tab,
                     structs_sym_tab,
+                    local_var_metadata,
                 )
-                builder.store(val[0], local_sym_tab[var_name].var)
+                builder.store(val[0], local_sym_tab[var_name][0])
-                logger.info(f"Assigned constant {rval.func.id} to {var_name}")
+                # local_sym_tab[var_name] = var
+                print(f"Assigned constant {rval.func.id} to {var_name}")
             elif call_type == "deref" and len(rval.args) == 1:
-                logger.info(f"Handling deref assignment {ast.dump(rval)}")
+                print(f"Handling deref assignment {ast.dump(rval)}")
                 val = eval_expr(
                     func,
                     module,
@@ -177,40 +161,28 @@ def handle_assign(
                     structs_sym_tab,
                 )
                 if val is None:
-                    logger.info("Failed to evaluate deref argument")
+                    print("Failed to evaluate deref argument")
                     return
-                logger.info(f"Dereferenced value: {val}, storing in {var_name}")
+                print(f"Dereferenced value: {val}, storing in {var_name}")
-                builder.store(val[0], local_sym_tab[var_name].var)
+                builder.store(val[0], local_sym_tab[var_name][0])
-                logger.info(f"Dereferenced and assigned to {var_name}")
+                # local_sym_tab[var_name] = var
+                print(f"Dereferenced and assigned to {var_name}")
             elif call_type in structs_sym_tab and len(rval.args) == 0:
                 struct_info = structs_sym_tab[call_type]
                 ir_type = struct_info.ir_type
                 # var = builder.alloca(ir_type, name=var_name)
                 # Null init
-                builder.store(ir.Constant(ir_type, None), local_sym_tab[var_name].var)
+                builder.store(ir.Constant(ir_type, None), local_sym_tab[var_name][0])
-                logger.info(f"Assigned struct {call_type} to {var_name}")
+                local_var_metadata[var_name] = call_type
+                print(f"Assigned struct {call_type} to {var_name}")
+                # local_sym_tab[var_name] = var
             else:
-                logger.info(f"Unsupported assignment call type: {call_type}")
+                print(f"Unsupported assignment call type: {call_type}")
         elif isinstance(rval.func, ast.Attribute):
-            logger.info(f"Assignment call attribute: {ast.dump(rval.func)}")
+            print(f"Assignment call attribute: {ast.dump(rval.func)}")
             if isinstance(rval.func.value, ast.Name):
-                if rval.func.value.id in map_sym_tab:
-                    map_name = rval.func.value.id
-                    method_name = rval.func.attr
-                    if HelperHandlerRegistry.has_handler(method_name):
-                        val = handle_helper_call(
-                            rval,
-                            module,
-                            builder,
-                            func,
-                            local_sym_tab,
-                            map_sym_tab,
-                            structs_sym_tab,
-                        )
-                        builder.store(val[0], local_sym_tab[var_name].var)
-                else:
                 # TODO: probably a struct access
-                    logger.info(f"TODO STRUCT ACCESS {ast.dump(rval)}")
+                print(f"TODO STRUCT ACCESS {ast.dump(rval)}")
             elif isinstance(rval.func.value, ast.Call) and isinstance(
                 rval.func.value.func, ast.Name
             ):
@@ -226,34 +198,96 @@ def handle_assign(
                             local_sym_tab,
                             map_sym_tab,
                             structs_sym_tab,
+                            local_var_metadata,
                         )
                         # var = builder.alloca(ir.IntType(64), name=var_name)
                         # var.align = 8
-                        builder.store(val[0], local_sym_tab[var_name].var)
+                        builder.store(val[0], local_sym_tab[var_name][0])
+                        # local_sym_tab[var_name] = var
             else:
-                logger.info("Unsupported assignment call structure")
+                print("Unsupported assignment call structure")
         else:
-            logger.info("Unsupported assignment call function type")
+            print("Unsupported assignment call function type")
     elif isinstance(rval, ast.BinOp):
-        handle_binary_op(rval, builder, var_name, local_sym_tab)
+        handle_binary_op(
+            rval, module, builder, var_name, local_sym_tab, map_sym_tab, func
+        )
     else:
-        logger.info("Unsupported assignment value type")
+        print("Unsupported assignment value type")
 
 
-def handle_cond(
+def handle_cond(func, module, builder, cond, local_sym_tab, map_sym_tab):
-    func, module, builder, cond, local_sym_tab, map_sym_tab, structs_sym_tab=None
+    if isinstance(cond, ast.Constant):
-):
+        if isinstance(cond.value, bool):
-    val = eval_expr(
+            return ir.Constant(ir.IntType(1), int(cond.value))
-        func, module, builder, cond, local_sym_tab, map_sym_tab, structs_sym_tab
+        elif isinstance(cond.value, int):
+            return ir.Constant(ir.IntType(1), int(bool(cond.value)))
+        else:
+            print("Unsupported constant type in condition")
+            return None
+    elif isinstance(cond, ast.Name):
+        if cond.id in local_sym_tab:
+            var = local_sym_tab[cond.id][0]
+            val = builder.load(var)
+            if val.type != ir.IntType(1):
+                # Convert nonzero values to true, zero to false
+                if isinstance(val.type, ir.PointerType):
+                    # For pointer types, compare with null pointer
+                    zero = ir.Constant(val.type, None)
+                else:
+                    # For integer types, compare with zero
+                    zero = ir.Constant(val.type, 0)
+                val = builder.icmp_signed("!=", val, zero)
+            return val
+        else:
+            print(f"Undefined variable {cond.id} in condition")
+            return None
+    elif isinstance(cond, ast.Compare):
+        lhs = eval_expr(func, module, builder, cond.left, local_sym_tab, map_sym_tab)[0]
+        if len(cond.ops) != 1 or len(cond.comparators) != 1:
+            print("Unsupported complex comparison")
+            return None
+        rhs = eval_expr(
+            func, module, builder, cond.comparators[0], local_sym_tab, map_sym_tab
         )[0]
-    return convert_to_bool(builder, val)
+        op = cond.ops[0]
+
+        if lhs.type != rhs.type:
+            if isinstance(lhs.type, ir.IntType) and isinstance(rhs.type, ir.IntType):
+                # Extend the smaller type to the larger type
+                if lhs.type.width < rhs.type.width:
+                    lhs = builder.sext(lhs, rhs.type)
+                elif lhs.type.width > rhs.type.width:
+                    rhs = builder.sext(rhs, lhs.type)
+            else:
+                print("Type mismatch in comparison")
+                return None
+
+        if isinstance(op, ast.Eq):
+            return builder.icmp_signed("==", lhs, rhs)
+        elif isinstance(op, ast.NotEq):
+            return builder.icmp_signed("!=", lhs, rhs)
+        elif isinstance(op, ast.Lt):
+            return builder.icmp_signed("<", lhs, rhs)
+        elif isinstance(op, ast.LtE):
+            return builder.icmp_signed("<=", lhs, rhs)
+        elif isinstance(op, ast.Gt):
+            return builder.icmp_signed(">", lhs, rhs)
+        elif isinstance(op, ast.GtE):
+            return builder.icmp_signed(">=", lhs, rhs)
+        else:
+            print("Unsupported comparison operator")
+            return None
+    else:
+        print("Unsupported condition expression")
+        return None
 
 
 def handle_if(
     func, module, builder, stmt, map_sym_tab, local_sym_tab, structs_sym_tab=None
 ):
     """Handle if statements in the function body."""
-    logger.info("Handling if statement")
+    print("Handling if statement")
     # start = builder.block.parent
     then_block = func.append_basic_block(name="if.then")
     merge_block = func.append_basic_block(name="if.end")
@@ -262,9 +296,7 @@ def handle_if(
     else:
         else_block = None
 
-    cond = handle_cond(
+    cond = handle_cond(func, module, builder, stmt.test, local_sym_tab, map_sym_tab)
-        func, module, builder, stmt.test, local_sym_tab, map_sym_tab, structs_sym_tab
-    )
     if else_block:
         builder.cbranch(cond, then_block, else_block)
     else:
@@ -297,27 +329,6 @@ def handle_if(
     builder.position_at_end(merge_block)
 
 
-def handle_return(builder, stmt, local_sym_tab, ret_type):
-    logger.info(f"Handling return statement: {ast.dump(stmt)}")
-    if stmt.value is None:
-        return _handle_none_return(builder)
-    elif isinstance(stmt.value, ast.Name) and _is_xdp_name(stmt.value.id):
-        return _handle_xdp_return(stmt, builder, ret_type)
-    else:
-        val = eval_expr(
-            func=None,
-            module=None,
-            builder=builder,
-            expr=stmt.value,
-            local_sym_tab=local_sym_tab,
-            map_sym_tab={},
-            structs_sym_tab={},
-        )
-        logger.info(f"Evaluated return expression to {val}")
-        builder.ret(val[0])
-        return True
-
-
 def process_stmt(
     func,
     module,
@@ -329,8 +340,9 @@ def process_stmt(
     did_return,
     ret_type=ir.IntType(64),
 ):
-    logger.info(f"Processing statement: {ast.dump(stmt)}")
+    print(f"Processing statement: {ast.dump(stmt)}")
     if isinstance(stmt, ast.Expr):
+        print(local_var_metadata)
         handle_expr(
             func,
             module,
@@ -339,6 +351,7 @@ def process_stmt(
             local_sym_tab,
             map_sym_tab,
             structs_sym_tab,
+            local_var_metadata,
         )
     elif isinstance(stmt, ast.Assign):
         handle_assign(
@@ -351,12 +364,36 @@ def process_stmt(
             func, module, builder, stmt, map_sym_tab, local_sym_tab, structs_sym_tab
         )
     elif isinstance(stmt, ast.Return):
-        did_return = handle_return(
+        if stmt.value is None:
-            builder,
+            builder.ret(ir.Constant(ir.IntType(32), 0))
-            stmt,
+            did_return = True
-            local_sym_tab,
+        elif (
-            ret_type,
+            isinstance(stmt.value, ast.Call)
+            and isinstance(stmt.value.func, ast.Name)
+            and len(stmt.value.args) == 1
+            and isinstance(stmt.value.args[0], ast.Constant)
+            and isinstance(stmt.value.args[0].value, int)
+        ):
+            call_type = stmt.value.func.id
+            if ctypes_to_ir(call_type) != ret_type:
+                raise ValueError(
+                    "Return type mismatch: expected"
+                    f"{ctypes_to_ir(call_type)}, got {call_type}"
                 )
+            else:
+                builder.ret(ir.Constant(ret_type, stmt.value.args[0].value))
+                did_return = True
+        elif isinstance(stmt.value, ast.Name):
+            if stmt.value.id == "XDP_PASS":
+                builder.ret(ir.Constant(ret_type, 2))
+                did_return = True
+            elif stmt.value.id == "XDP_DROP":
+                builder.ret(ir.Constant(ret_type, 1))
+                did_return = True
+            else:
+                raise ValueError("Failed to evaluate return expression")
+        else:
+            raise ValueError("Unsupported return value")
     return did_return
 
 
@@ -364,7 +401,6 @@ def allocate_mem(
     module, builder, body, func, ret_type, map_sym_tab, local_sym_tab, structs_sym_tab
 ):
     for stmt in body:
-        has_metadata = False
         if isinstance(stmt, ast.If):
             if stmt.body:
                 local_sym_tab = allocate_mem(
@@ -390,17 +426,14 @@ def allocate_mem(
                 )
         elif isinstance(stmt, ast.Assign):
             if len(stmt.targets) != 1:
-                logger.info("Unsupported multiassignment")
+                print("Unsupported multiassignment")
                 continue
             target = stmt.targets[0]
             if not isinstance(target, ast.Name):
-                logger.info("Unsupported assignment target")
+                print("Unsupported assignment target")
                 continue
             var_name = target.id
             rval = stmt.value
-            if var_name in local_sym_tab:
-                logger.info(f"Variable {var_name} already allocated")
-                continue
             if isinstance(rval, ast.Call):
                 if isinstance(rval.func, ast.Name):
                     call_type = rval.func.id
@@ -408,71 +441,66 @@ def allocate_mem(
                         ir_type = ctypes_to_ir(call_type)
                         var = builder.alloca(ir_type, name=var_name)
                         var.align = ir_type.width // 8
-                        logger.info(
+                        print(f"Pre-allocated variable {var_name} of type {call_type}")
-                            f"Pre-allocated variable {var_name} of type {call_type}"
-                        )
                     elif HelperHandlerRegistry.has_handler(call_type):
                         # Assume return type is int64 for now
                         ir_type = ir.IntType(64)
                         var = builder.alloca(ir_type, name=var_name)
                         var.align = ir_type.width // 8
-                        logger.info(f"Pre-allocated variable {var_name} for helper")
+                        print(f"Pre-allocated variable {var_name} for helper")
                     elif call_type == "deref" and len(rval.args) == 1:
                         # Assume return type is int64 for now
                         ir_type = ir.IntType(64)
                         var = builder.alloca(ir_type, name=var_name)
                         var.align = ir_type.width // 8
-                        logger.info(f"Pre-allocated variable {var_name} for deref")
+                        print(f"Pre-allocated variable {var_name} for deref")
                     elif call_type in structs_sym_tab:
                         struct_info = structs_sym_tab[call_type]
                         ir_type = struct_info.ir_type
                         var = builder.alloca(ir_type, name=var_name)
-                        has_metadata = True
+                        local_var_metadata[var_name] = call_type
-                        logger.info(
+                        print(
-                            f"Pre-allocated variable {var_name} for struct {call_type}"
+                            f"Pre-allocated variable {var_name} "
+                            f"for struct {call_type}"
                         )
                 elif isinstance(rval.func, ast.Attribute):
                     ir_type = ir.PointerType(ir.IntType(64))
                     var = builder.alloca(ir_type, name=var_name)
                     # var.align = ir_type.width // 8
-                    logger.info(f"Pre-allocated variable {var_name} for map")
+                    print(f"Pre-allocated variable {var_name} for map")
                 else:
-                    logger.info("Unsupported assignment call function type")
+                    print("Unsupported assignment call function type")
                     continue
             elif isinstance(rval, ast.Constant):
                 if isinstance(rval.value, bool):
                     ir_type = ir.IntType(1)
                     var = builder.alloca(ir_type, name=var_name)
                     var.align = 1
-                    logger.info(f"Pre-allocated variable {var_name} of type c_bool")
+                    print(f"Pre-allocated variable {var_name} of type c_bool")
                 elif isinstance(rval.value, int):
                     # Assume c_int64 for now
                     ir_type = ir.IntType(64)
                     var = builder.alloca(ir_type, name=var_name)
                     var.align = ir_type.width // 8
-                    logger.info(f"Pre-allocated variable {var_name} of type c_int64")
+                    print(f"Pre-allocated variable {var_name} of type c_int64")
                 elif isinstance(rval.value, str):
                     ir_type = ir.PointerType(ir.IntType(8))
                     var = builder.alloca(ir_type, name=var_name)
                     var.align = 8
-                    logger.info(f"Pre-allocated variable {var_name} of type string")
+                    print(f"Pre-allocated variable {var_name} of type string")
                 else:
-                    logger.info("Unsupported constant type")
+                    print("Unsupported constant type")
                     continue
             elif isinstance(rval, ast.BinOp):
                 # Assume c_int64 for now
                 ir_type = ir.IntType(64)
                 var = builder.alloca(ir_type, name=var_name)
                 var.align = ir_type.width // 8
-                logger.info(f"Pre-allocated variable {var_name} of type c_int64")
+                print(f"Pre-allocated variable {var_name} of type c_int64")
             else:
-                logger.info("Unsupported assignment value type")
+                print("Unsupported assignment value type")
                 continue
-
+            local_sym_tab[var_name] = (var, ir_type)
-            if has_metadata:
-                local_sym_tab[var_name] = LocalSymbol(var, ir_type, call_type)
-            else:
-                local_sym_tab[var_name] = LocalSymbol(var, ir_type)
     return local_sym_tab
 
 
@@ -497,7 +525,7 @@ def process_func_body(
         structs_sym_tab,
     )
 
-    logger.info(f"Local symbol table: {local_sym_tab.keys()}")
+    print(f"Local symbol table: {local_sym_tab.keys()}")
 
     for stmt in func_node.body:
         did_return = process_stmt(
@@ -513,7 +541,7 @@ def process_func_body(
         )
 
     if not did_return:
-        builder.ret(ir.Constant(ir.IntType(64), 0))
+        builder.ret(ir.Constant(ir.IntType(32), 0))
 
 
 def process_bpf_chunk(func_node, module, return_type, map_sym_tab, structs_sym_tab):
@@ -569,7 +597,7 @@ def func_proc(tree, module, chunks, map_sym_tab, structs_sym_tab):
         if is_global:
             continue
         func_type = get_probe_string(func_node)
-        logger.info(f"Found probe_string of {func_node.name}: {func_type}")
+        print(f"Found probe_string of {func_node.name}: {func_type}")
 
         process_bpf_chunk(
             func_node,
@@ -634,7 +662,7 @@ def infer_return_type(func_node: ast.FunctionDef):
             if found_type is None:
                 found_type = t
             elif found_type != t:
-                raise ValueError(f"Conflicting return types: {found_type} vs {t}")
+                raise ValueError("Conflicting return types:" f"{found_type} vs {t}")
     return found_type or "None"
 
 

pythonbpf/globals_pass.py

@@ -1,121 +1,8 @@
 from llvmlite import ir
 import ast
 
-from logging import Logger
-import logging
-from .type_deducer import ctypes_to_ir
 
-logger: Logger = logging.getLogger(__name__)
+def emit_globals(module: ir.Module, names: list[str]):
-
-# TODO: this is going to be a huge fuck of a headache in the future.
-global_sym_tab = []
-
-
-def populate_global_symbol_table(tree, module: ir.Module):
-    for node in tree.body:
-        if isinstance(node, ast.FunctionDef):
-            for dec in node.decorator_list:
-                if (
-                    isinstance(dec, ast.Call)
-                    and isinstance(dec.func, ast.Name)
-                    and dec.func.id == "section"
-                    and len(dec.args) == 1
-                    and isinstance(dec.args[0], ast.Constant)
-                    and isinstance(dec.args[0].value, str)
-                ):
-                    global_sym_tab.append(node)
-                elif isinstance(dec, ast.Name) and dec.id == "bpfglobal":
-                    global_sym_tab.append(node)
-
-                elif isinstance(dec, ast.Name) and dec.id == "map":
-                    global_sym_tab.append(node)
-    return False
-
-
-def emit_global(module: ir.Module, node, name):
-    logger.info(f"global identifier {name} processing")
-    # deduce LLVM type from the annotated return
-    if not isinstance(node.returns, ast.Name):
-        raise ValueError(f"Unsupported return annotation {ast.dump(node.returns)}")
-    ty = ctypes_to_ir(node.returns.id)
-
-    # extract the return expression
-    # TODO: turn this return extractor into a generic function I can use everywhere.
-    ret_stmt = node.body[0]
-    if not isinstance(ret_stmt, ast.Return) or ret_stmt.value is None:
-        raise ValueError(f"Global '{name}' has no valid return")
-
-    init_val = ret_stmt.value
-
-    # simple constant like "return 0"
-    if isinstance(init_val, ast.Constant):
-        llvm_init = ir.Constant(ty, init_val.value)
-
-    # variable reference like "return SOME_CONST"
-    elif isinstance(init_val, ast.Name):
-        # need symbol resolution here, stub as 0 for now
-        raise ValueError(f"Name reference {init_val.id} not yet supported")
-
-    # constructor call like "return c_int64(0)" or dataclass(...)
-    elif isinstance(init_val, ast.Call):
-        if len(init_val.args) >= 1 and isinstance(init_val.args[0], ast.Constant):
-            llvm_init = ir.Constant(ty, init_val.args[0].value)
-        else:
-            logger.info("Defaulting to zero as no constant argument found")
-            llvm_init = ir.Constant(ty, 0)
-    else:
-        raise ValueError(f"Unsupported return expr {ast.dump(init_val)}")
-
-    gvar = ir.GlobalVariable(module, ty, name=name)
-    gvar.initializer = llvm_init
-    gvar.align = 8
-    gvar.linkage = "dso_local"
-    gvar.global_constant = False
-    return gvar
-
-
-def globals_processing(tree, module):
-    """Process stuff decorated with @bpf and @bpfglobal except license and return the section name"""
-    globals_sym_tab = []
-
-    for node in tree.body:
-        # Skip non-assignment and non-function nodes
-        if not (isinstance(node, ast.FunctionDef)):
-            continue
-
-        # Get the name based on node type
-        if isinstance(node, ast.FunctionDef):
-            name = node.name
-        else:
-            continue
-
-        # Check for duplicate names
-        if name in globals_sym_tab:
-            raise SyntaxError(f"ERROR: Global name '{name}' previously defined")
-        else:
-            globals_sym_tab.append(name)
-
-        if isinstance(node, ast.FunctionDef) and node.name != "LICENSE":
-            decorators = [
-                dec.id for dec in node.decorator_list if isinstance(dec, ast.Name)
-            ]
-            if "bpf" in decorators and "bpfglobal" in decorators:
-                if (
-                    len(node.body) == 1
-                    and isinstance(node.body[0], ast.Return)
-                    and node.body[0].value is not None
-                    and isinstance(
-                        node.body[0].value, (ast.Constant, ast.Name, ast.Call)
-                    )
-                ):
-                    emit_global(module, node, name)
-                else:
-                    raise SyntaxError(f"ERROR: Invalid syntax for {name} global")
-
-    return None
-
-
-def emit_llvm_compiler_used(module: ir.Module, names: list[str]):
     """
     Emit the @llvm.compiler.used global given a list of function/global names.
     """
@@ -137,7 +24,7 @@ def emit_llvm_compiler_used(module: ir.Module, names: list[str]):
     gv.section = "llvm.metadata"
 
 
-def globals_list_creation(tree, module: ir.Module):
+def globals_processing(tree, module: ir.Module):
     collected = ["LICENSE"]
 
     for node in tree.body:
@@ -153,11 +40,10 @@ def globals_list_creation(tree, module: ir.Module):
                 ):
                     collected.append(node.name)
 
-                # NOTE: all globals other than
+                elif isinstance(dec, ast.Name) and dec.id == "bpfglobal":
-                # elif isinstance(dec, ast.Name) and dec.id == "bpfglobal":
+                    collected.append(node.name)
-                #     collected.append(node.name)
 
                 elif isinstance(dec, ast.Name) and dec.id == "map":
                     collected.append(node.name)
 
-    emit_llvm_compiler_used(module, collected)
+    emit_globals(module, collected)

pythonbpf/helper/bpf_helper_handler.py

@@ -9,10 +9,6 @@ from .helper_utils import (
     simple_string_print,
     get_data_ptr_and_size,
 )
-from logging import Logger
-import logging
-
-logger: Logger = logging.getLogger(__name__)
 
 
 class BPFHelperID(Enum):
@@ -23,6 +19,8 @@ class BPFHelperID(Enum):
     BPF_PRINTK = 6
     BPF_GET_CURRENT_PID_TGID = 14
     BPF_PERF_EVENT_OUTPUT = 25
+    BPF_RINGBUF_RESERVE = 131
+    BPF_RINGBUF_SUBMIT = 132
 
 
 @HelperHandlerRegistry.register("ktime")
@@ -34,6 +32,7 @@ def bpf_ktime_get_ns_emitter(
     func,
     local_sym_tab=None,
     struct_sym_tab=None,
+    local_var_metadata=None,
 ):
     """
     Emit LLVM IR for bpf_ktime_get_ns helper function call.
@@ -56,13 +55,14 @@ def bpf_map_lookup_elem_emitter(
     func,
     local_sym_tab=None,
     struct_sym_tab=None,
+    local_var_metadata=None,
 ):
     """
     Emit LLVM IR for bpf_map_lookup_elem helper function call.
     """
     if not call.args or len(call.args) != 1:
         raise ValueError(
-            f"Map lookup expects exactly one argument (key), got {len(call.args)}"
+            "Map lookup expects exactly one argument (key), got " f"{len(call.args)}"
         )
     key_ptr = get_or_create_ptr_from_arg(call.args[0], builder, local_sym_tab)
     map_void_ptr = builder.bitcast(map_ptr, ir.PointerType())
@@ -91,6 +91,7 @@ def bpf_printk_emitter(
     func,
     local_sym_tab=None,
     struct_sym_tab=None,
+    local_var_metadata=None,
 ):
     """Emit LLVM IR for bpf_printk helper function call."""
     if not hasattr(func, "_fmt_counter"):
@@ -108,6 +109,7 @@ def bpf_printk_emitter(
             func,
             local_sym_tab,
             struct_sym_tab,
+            local_var_metadata,
         )
     elif isinstance(call.args[0], ast.Constant) and isinstance(call.args[0].value, str):
         # TODO: We are only supporting single arguments for now.
@@ -138,6 +140,7 @@ def bpf_map_update_elem_emitter(
     func,
     local_sym_tab=None,
     struct_sym_tab=None,
+    local_var_metadata=None,
 ):
     """
     Emit LLVM IR for bpf_map_update_elem helper function call.
@@ -145,7 +148,8 @@ def bpf_map_update_elem_emitter(
     """
     if not call.args or len(call.args) < 2 or len(call.args) > 3:
         raise ValueError(
-            f"Map update expects 2 or 3 args (key, value, flags), got {len(call.args)}"
+            "Map update expects 2 or 3 args (key, value, flags), "
+            f"got {len(call.args)}"
         )
 
     key_arg = call.args[0]
@@ -178,6 +182,114 @@ def bpf_map_update_elem_emitter(
 
     return result, None
 
+@HelperHandlerRegistry.register("submit")
+def bpf_ringbuf_submit_emitter(
+    call,
+    map_ptr,
+    module,
+    builder,
+    func,
+    local_sym_tab=None,
+    struct_sym_tab=None,
+    local_var_metadata=None,
+):
+    """
+    Emit LLVM IR for bpf_ringbuf_submit helper function call.
+    Expected call signature: ringbuf.submit(data, flags=0)
+    """
+    if not call.args or len(call.args) < 1 or len(call.args) > 2:
+        raise ValueError(
+            "Ringbuf submit expects 1 or 2 args (data, flags), "
+            f"got {len(call.args)}"
+        )
+
+    data_arg = call.args[0]
+    data_ptr = get_or_create_ptr_from_arg(data_arg, builder, local_sym_tab)
+
+    # Get flags argument (default to 0)
+    flags_arg = call.args[1] if len(call.args) > 1 else None
+    flags_val = get_flags_val(flags_arg, builder, local_sym_tab)
+
+    # Returns: void
+    # Args: (void* data, u64 flags)
+    fn_type = ir.FunctionType(
+        ir.VoidType(),
+        [ir.PointerType(), ir.IntType(64)],
+        var_arg=False,
+    )
+    fn_ptr_type = ir.PointerType(fn_type)
+
+    fn_addr = ir.Constant(ir.IntType(64), BPFHelperID.BPF_RINGBUF_SUBMIT.value)
+    fn_ptr = builder.inttoptr(fn_addr, fn_ptr_type)
+
+    if isinstance(flags_val, int):
+        flags_const = ir.Constant(ir.IntType(64), flags_val)
+    else:
+        flags_const = flags_val
+
+    builder.call(fn_ptr, [data_ptr, flags_const], tail=True)
+
+    return None
+
+@HelperHandlerRegistry.register("reserve")
+def bpf_ringbuf_reserve_emitter(
+    call,
+    map_ptr,
+    module,
+    builder,
+    func,
+    local_sym_tab=None,
+    struct_sym_tab=None,
+    local_var_metadata=None,
+):
+    """
+    Emit LLVM IR for bpf_ringbuf_reserve helper function call.
+    Expected call signature: ringbuf.reserve(size, flags=0)
+    """
+    if not call.args or len(call.args) < 1 or len(call.args) > 2:
+        raise ValueError(
+            "Ringbuf reserve expects 1 or 2 args (size, flags), "
+            f"got {len(call.args)}"
+        )
+
+    # TODO: here, getting length of stuff does not actually work. need to fix this.
+    size_arg = call.args[0]
+    if isinstance(size_arg, ast.Constant):
+        size_val = ir.Constant(ir.IntType(64), size_arg.value)
+    elif isinstance(size_arg, ast.Name):
+        if size_arg.id not in local_sym_tab:
+            raise ValueError(
+                f"Variable '{size_arg.id}' not found in local symbol table"
+            )
+        size_val = builder.load(local_sym_tab[size_arg.id])
+    else:
+        raise NotImplementedError(f"Unsupported size argument type: {type(size_arg)}")
+
+    flags_arg = call.args[1] if len(call.args) > 1 else None
+    flags_val = get_flags_val(flags_arg, builder, local_sym_tab)
+
+    map_void_ptr = builder.bitcast(map_ptr, ir.PointerType())
+
+    # Args: (void* ringbuf, u64 size, u64 flags)
+    fn_type = ir.FunctionType(
+        ir.PointerType(),
+        [ir.PointerType(), ir.IntType(64), ir.IntType(64)],
+        var_arg=False,
+    )
+    fn_ptr_type = ir.PointerType(fn_type)
+
+    fn_addr = ir.Constant(ir.IntType(64), BPFHelperID.BPF_RINGBUF_RESERVE.value)
+    fn_ptr = builder.inttoptr(fn_addr, fn_ptr_type)
+
+    if isinstance(flags_val, int):
+        flags_const = ir.Constant(ir.IntType(64), flags_val)
+    else:
+        flags_const = flags_val
+
+    result = builder.call(fn_ptr, [map_void_ptr, size_val, flags_const], tail=True)
+
+    return result, ir.PointerType()
+
 
 @HelperHandlerRegistry.register("delete")
 def bpf_map_delete_elem_emitter(
@@ -188,6 +300,7 @@ def bpf_map_delete_elem_emitter(
     func,
     local_sym_tab=None,
     struct_sym_tab=None,
+    local_var_metadata=None,
 ):
     """
     Emit LLVM IR for bpf_map_delete_elem helper function call.
@@ -195,7 +308,7 @@ def bpf_map_delete_elem_emitter(
     """
     if not call.args or len(call.args) != 1:
         raise ValueError(
-            f"Map delete expects exactly one argument (key), got {len(call.args)}"
+            "Map delete expects exactly one argument (key), got " f"{len(call.args)}"
         )
     key_ptr = get_or_create_ptr_from_arg(call.args[0], builder, local_sym_tab)
     map_void_ptr = builder.bitcast(map_ptr, ir.PointerType())
@@ -225,6 +338,7 @@ def bpf_get_current_pid_tgid_emitter(
     func,
     local_sym_tab=None,
     struct_sym_tab=None,
+    local_var_metadata=None,
 ):
     """
     Emit LLVM IR for bpf_get_current_pid_tgid helper function call.
@@ -251,15 +365,18 @@ def bpf_perf_event_output_handler(
     func,
     local_sym_tab=None,
     struct_sym_tab=None,
+    local_var_metadata=None,
 ):
     if len(call.args) != 1:
         raise ValueError(
-            f"Perf event output expects exactly one argument, got {len(call.args)}"
+            "Perf event output expects exactly one argument, " f"got {len(call.args)}"
         )
     data_arg = call.args[0]
     ctx_ptr = func.args[0]  # First argument to the function is ctx
 
-    data_ptr, size_val = get_data_ptr_and_size(data_arg, local_sym_tab, struct_sym_tab)
+    data_ptr, size_val = get_data_ptr_and_size(
+        data_arg, local_sym_tab, struct_sym_tab, local_var_metadata
+    )
 
     # BPF_F_CURRENT_CPU is -1 in 32 bit
     flags_val = ir.Constant(ir.IntType(64), 0xFFFFFFFF)
@@ -297,6 +414,7 @@ def handle_helper_call(
     local_sym_tab=None,
     map_sym_tab=None,
     struct_sym_tab=None,
+    local_var_metadata=None,
 ):
     """Process a BPF helper function call and emit the appropriate LLVM IR."""
 
@@ -315,6 +433,7 @@ def handle_helper_call(
             func,
             local_sym_tab,
             struct_sym_tab,
+            local_var_metadata,
         )
 
     # Handle direct function calls (e.g., print(), ktime())
@@ -325,7 +444,7 @@ def handle_helper_call(
     elif isinstance(call.func, ast.Attribute):
         method_name = call.func.attr
         value = call.func.value
-        logger.info(f"Handling method call: {ast.dump(call.func)}")
+        print(f"Handling method call: {ast.dump(call.func)}")
         # Get map pointer from different styles of map access
         if isinstance(value, ast.Call) and isinstance(value.func, ast.Name):
             # Func style: my_map().lookup(key)

pythonbpf/helper/helper_utils.py

@@ -3,7 +3,7 @@ import logging
 from collections.abc import Callable
 
 from llvmlite import ir
-from pythonbpf.expr import eval_expr
+from pythonbpf.expr_pass import eval_expr
 
 logger = logging.getLogger(__name__)
 
@@ -37,7 +37,7 @@ class HelperHandlerRegistry:
 def get_var_ptr_from_name(var_name, local_sym_tab):
     """Get a pointer to a variable from the symbol table."""
     if local_sym_tab and var_name in local_sym_tab:
-        return local_sym_tab[var_name].var
+        return local_sym_tab[var_name][0]
     raise ValueError(f"Variable '{var_name}' not found in local symbol table")
 
 
@@ -72,7 +72,7 @@ def get_flags_val(arg, builder, local_sym_tab):
 
     if isinstance(arg, ast.Name):
         if local_sym_tab and arg.id in local_sym_tab:
-            flags_ptr = local_sym_tab[arg.id].var
+            flags_ptr = local_sym_tab[arg.id][0]
             return builder.load(flags_ptr)
         else:
             raise ValueError(f"Variable '{arg.id}' not found in local symbol table")
@@ -100,6 +100,7 @@ def handle_fstring_print(
     func,
     local_sym_tab=None,
     struct_sym_tab=None,
+    local_var_metadata=None,
 ):
     """Handle f-string formatting for bpf_printk emitter."""
     fmt_parts = []
@@ -117,6 +118,7 @@ def handle_fstring_print(
                 exprs,
                 local_sym_tab,
                 struct_sym_tab,
+                local_var_metadata,
             )
         else:
             raise NotImplementedError(f"Unsupported f-string value type: {type(value)}")
@@ -136,6 +138,7 @@ def handle_fstring_print(
             builder,
             local_sym_tab,
             struct_sym_tab,
+            local_var_metadata,
         )
         args.append(arg_value)
 
@@ -155,7 +158,9 @@ def _process_constant_in_fstring(cst, fmt_parts, exprs):
         )
 
 
-def _process_fval(fval, fmt_parts, exprs, local_sym_tab, struct_sym_tab):
+def _process_fval(
+    fval, fmt_parts, exprs, local_sym_tab, struct_sym_tab, local_var_metadata
+):
     """Process formatted values in f-string."""
     logger.debug(f"Processing formatted value: {ast.dump(fval)}")
 
@@ -168,6 +173,7 @@ def _process_fval(fval, fmt_parts, exprs, local_sym_tab, struct_sym_tab):
             exprs,
             local_sym_tab,
             struct_sym_tab,
+            local_var_metadata,
         )
     else:
         raise NotImplementedError(
@@ -178,11 +184,13 @@ def _process_fval(fval, fmt_parts, exprs, local_sym_tab, struct_sym_tab):
 def _process_name_in_fval(name_node, fmt_parts, exprs, local_sym_tab):
     """Process name nodes in formatted values."""
     if local_sym_tab and name_node.id in local_sym_tab:
-        _, var_type, tmp = local_sym_tab[name_node.id]
+        _, var_type = local_sym_tab[name_node.id]
         _populate_fval(var_type, name_node, fmt_parts, exprs)
 
 
-def _process_attr_in_fval(attr_node, fmt_parts, exprs, local_sym_tab, struct_sym_tab):
+def _process_attr_in_fval(
+    attr_node, fmt_parts, exprs, local_sym_tab, struct_sym_tab, local_var_metadata
+):
     """Process attribute nodes in formatted values."""
     if (
         isinstance(attr_node.value, ast.Name)
@@ -192,7 +200,12 @@ def _process_attr_in_fval(attr_node, fmt_parts, exprs, local_sym_tab, struct_sym
         var_name = attr_node.value.id
         field_name = attr_node.attr
 
-        var_type = local_sym_tab[var_name].metadata
+        if not local_var_metadata or var_name not in local_var_metadata:
+            raise ValueError(
+                f"Metadata for '{var_name}' not found in local var metadata"
+            )
+
+        var_type = local_var_metadata[var_name]
         if var_type not in struct_sym_tab:
             raise ValueError(
                 f"Struct '{var_type}' for '{var_name}' not in symbol table"
@@ -250,7 +263,9 @@ def _create_format_string_global(fmt_str, func, module, builder):
     return builder.bitcast(fmt_gvar, ir.PointerType())
 
 
-def _prepare_expr_args(expr, func, module, builder, local_sym_tab, struct_sym_tab):
+def _prepare_expr_args(
+    expr, func, module, builder, local_sym_tab, struct_sym_tab, local_var_metadata
+):
     """Evaluate and prepare an expression to use as an arg for bpf_printk."""
     val, _ = eval_expr(
         func,
@@ -260,6 +275,7 @@ def _prepare_expr_args(expr, func, module, builder, local_sym_tab, struct_sym_ta
         local_sym_tab,
         None,
         struct_sym_tab,
+        local_var_metadata,
     )
 
     if val:
@@ -270,7 +286,7 @@ def _prepare_expr_args(expr, func, module, builder, local_sym_tab, struct_sym_ta
                 val = builder.sext(val, ir.IntType(64))
         else:
             logger.warning(
-                "Only int and ptr supported in bpf_printk args. Others default to 0."
+                "Only int and ptr supported in bpf_printk args. " "Others default to 0."
             )
             val = ir.Constant(ir.IntType(64), 0)
         return val
@@ -282,26 +298,34 @@ def _prepare_expr_args(expr, func, module, builder, local_sym_tab, struct_sym_ta
         return ir.Constant(ir.IntType(64), 0)
 
 
-def get_data_ptr_and_size(data_arg, local_sym_tab, struct_sym_tab):
+def get_data_ptr_and_size(data_arg, local_sym_tab, struct_sym_tab, local_var_metadata):
     """Extract data pointer and size information for perf event output."""
     if isinstance(data_arg, ast.Name):
         data_name = data_arg.id
         if local_sym_tab and data_name in local_sym_tab:
-            data_ptr = local_sym_tab[data_name].var
+            data_ptr = local_sym_tab[data_name][0]
         else:
             raise ValueError(
                 f"Data variable {data_name} not found in local symbol table."
             )
 
         # Check if data_name is a struct
-        data_type = local_sym_tab[data_name].metadata
+        if local_var_metadata and data_name in local_var_metadata:
+            data_type = local_var_metadata[data_name]
             if data_type in struct_sym_tab:
                 struct_info = struct_sym_tab[data_type]
                 size_val = ir.Constant(ir.IntType(64), struct_info.size)
                 return data_ptr, size_val
             else:
-            raise ValueError(f"Struct {data_type} for {data_name} not in symbol table.")
+                raise ValueError(
+                    f"Struct {data_type} for {data_name} not in symbol table."
+                )
+        else:
+            raise ValueError(
+                f"Metadata for variable {data_name} "
+                "not found in local variable metadata."
+            )
     else:
         raise NotImplementedError(
-            "Only simple object names are supported as data in perf event output."
+            "Only simple object names are supported " "as data in perf event output."
         )

pythonbpf/helper/helpers.py

@@ -15,8 +15,5 @@ def deref(ptr):
     return result if result is not None else 0
 
 
-XDP_ABORTED = ctypes.c_int64(0)
 XDP_DROP = ctypes.c_int64(1)
 XDP_PASS = ctypes.c_int64(2)
-XDP_TX = ctypes.c_int64(3)
-XDP_REDIRECT = ctypes.c_int64(4)

pythonbpf/license_pass.py

@@ -1,9 +1,5 @@
 from llvmlite import ir
 import ast
-from logging import Logger
-import logging
-
-logger: Logger = logging.getLogger(__name__)
 
 
 def emit_license(module: ir.Module, license_str: str):
@@ -45,9 +41,9 @@ def license_processing(tree, module):
                         emit_license(module, node.body[0].value.value)
                         return "LICENSE"
                     else:
-                        logger.info("ERROR: LICENSE() must return a string literal")
+                        print("ERROR: LICENSE() must return a string literal")
                         return None
                 else:
-                    logger.info("ERROR: LICENSE already defined")
+                    print("ERROR: LICENSE already defined")
                     return None
     return None

pythonbpf/maps/maps_pass.py

@@ -3,7 +3,7 @@ from logging import Logger
 from llvmlite import ir
 from enum import Enum
 from .maps_utils import MapProcessorRegistry
-from pythonbpf.debuginfo import DebugInfoGenerator
+from ..debuginfo import DebugInfoGenerator
 import logging
 
 logger: Logger = logging.getLogger(__name__)
@@ -85,7 +85,7 @@ def create_bpf_map(module, map_name, map_params):
 
 
 def create_map_debug_info(module, map_global, map_name, map_params):
-    """Generate debug info metadata for BPF maps HASH and PERF_EVENT_ARRAY"""
+    """Generate debug information metadata for BPF maps HASH and PERF_EVENT_ARRAY"""
     generator = DebugInfoGenerator(module)
 
     uint_type = generator.get_uint32_type()
@@ -278,7 +278,9 @@ def process_bpf_map(func_node, module):
         if handler:
             return handler(map_name, rval, module)
         else:
-            logger.warning(f"Unknown map type {rval.func.id}, defaulting to HashMap")
+            logger.warning(
+                f"Unknown map type " f"{rval.func.id}, defaulting to HashMap"
+            )
             return process_hash_map(map_name, rval, module)
     else:
         raise ValueError("Function under @map must return a map")

pythonbpf/structs/structs_pass.py

@@ -19,7 +19,7 @@ def structs_proc(tree, module, chunks):
     structs_sym_tab = {}
     for cls_node in chunks:
         if is_bpf_struct(cls_node):
-            logger.info(f"Found BPF struct: {cls_node.name}")
+            print(f"Found BPF struct: {cls_node.name}")
             struct_info = process_bpf_struct(cls_node, module)
             structs_sym_tab[cls_node.name] = struct_info
     return structs_sym_tab

pythonbpf/type_deducer.py

@@ -1,7 +1,10 @@
 from llvmlite import ir
 
 # TODO: THIS IS NOT SUPPOSED TO MATCH STRINGS :skull:
-mapping = {
+
+
+def ctypes_to_ir(ctype: str):
+    mapping = {
         "c_int8": ir.IntType(8),
         "c_uint8": ir.IntType(8),
         "c_int16": ir.IntType(16),
@@ -15,14 +18,7 @@ mapping = {
         "c_void_p": ir.IntType(64),
         # Not so sure about this one
         "str": ir.PointerType(ir.IntType(8)),
-}
+    }
-
-
-def ctypes_to_ir(ctype: str):
     if ctype in mapping:
         return mapping[ctype]
     raise NotImplementedError(f"No mapping for {ctype}")
-
-
-def is_ctypes(ctype: str) -> bool:
-    return ctype in mapping

pythonbpf/vmlinux_parser/__init__.py

@@ -1,3 +0,0 @@
-from .import_detector import vmlinux_proc
-
-__all__ = ["vmlinux_proc"]

pythonbpf/vmlinux_parser/class_handler.py

@@ -1,156 +0,0 @@
-import logging
-from functools import lru_cache
-import importlib
-from .dependency_handler import DependencyHandler
-from .dependency_node import DependencyNode
-import ctypes
-from typing import Optional, Any
-
-logger = logging.getLogger(__name__)
-
-
-@lru_cache(maxsize=1)
-def get_module_symbols(module_name: str):
-    imported_module = importlib.import_module(module_name)
-    return [name for name in dir(imported_module)], imported_module
-
-
-def process_vmlinux_class(node, llvm_module, handler: DependencyHandler):
-    symbols_in_module, imported_module = get_module_symbols("vmlinux")
-    if node.name in symbols_in_module:
-        vmlinux_type = getattr(imported_module, node.name)
-        process_vmlinux_post_ast(vmlinux_type, llvm_module, handler)
-    else:
-        raise ImportError(f"{node.name} not in vmlinux")
-
-
-def process_vmlinux_post_ast(
-    elem_type_class, llvm_handler, handler: DependencyHandler, processing_stack=None
-):
-    # Initialize processing stack on first call
-    if processing_stack is None:
-        processing_stack = set()
-    symbols_in_module, imported_module = get_module_symbols("vmlinux")
-
-    current_symbol_name = elem_type_class.__name__
-    field_table = {}
-    is_complex_type = False
-    containing_type: Optional[Any] = None
-    ctype_complex_type: Optional[Any] = None
-    type_length: Optional[int] = None
-    module_name = getattr(elem_type_class, "__module__", None)
-
-    if current_symbol_name in processing_stack:
-        logger.info(f"Circular dependency detected for {current_symbol_name}, skipping")
-        return True
-
-    # Check if already processed
-    if handler.has_node(current_symbol_name):
-        logger.info(f"Node {current_symbol_name} already processed and ready")
-        return True
-
-    processing_stack.add(current_symbol_name)
-
-    if module_name == "vmlinux":
-        if hasattr(elem_type_class, "_type_"):
-            pass
-        else:
-            new_dep_node = DependencyNode(name=current_symbol_name)
-            handler.add_node(new_dep_node)
-            class_obj = getattr(imported_module, current_symbol_name)
-            # Inspect the class fields
-            if hasattr(class_obj, "_fields_"):
-                for field_elem in class_obj._fields_:
-                    field_name = None
-                    field_type = None
-                    bitfield_size = None
-                    if len(field_elem) == 2:
-                        field_name, field_type = field_elem
-                    elif len(field_elem) == 3:
-                        field_name, field_type, bitfield_size = field_elem
-                    field_table[field_name] = [field_type, bitfield_size]
-            elif hasattr(class_obj, "__annotations__"):
-                for field_elem in class_obj.__annotations__.items():
-                    field_name = None
-                    field_type = None
-                    bitfield_size = None
-                    if len(field_elem) == 2:
-                        field_name, field_type = field_elem
-                    elif len(field_elem) == 3:
-                        field_name, field_type, bitfield_size = field_elem
-                    field_table[field_name] = [field_type, bitfield_size]
-            else:
-                raise TypeError("Could not get required class and definition")
-
-            logger.debug(f"Extracted fields for {current_symbol_name}: {field_table}")
-            for elem in field_table.items():
-                elem_name, elem_temp_list = elem
-                [elem_type, elem_bitfield_size] = elem_temp_list
-                local_module_name = getattr(elem_type, "__module__", None)
-                if local_module_name == ctypes.__name__:
-                    new_dep_node.add_field(elem_name, elem_type, ready=False)
-                    new_dep_node.set_field_bitfield_size(elem_name, elem_bitfield_size)
-                    new_dep_node.set_field_ready(elem_name, is_ready=True)
-                    logger.info(f"Field {elem_name} is direct ctypes type: {elem_type}")
-                elif local_module_name == "vmlinux":
-                    new_dep_node.add_field(elem_name, elem_type, ready=False)
-                    new_dep_node.set_field_bitfield_size(elem_name, elem_bitfield_size)
-                    logger.debug(
-                        f"Processing vmlinux field: {elem_name}, type: {elem_type}"
-                    )
-                    if hasattr(elem_type, "_type_"):
-                        is_complex_type = True
-                        containing_type = elem_type._type_
-                        if hasattr(elem_type, "_length_") and is_complex_type:
-                            type_length = elem_type._length_
-                        if containing_type.__module__ == "vmlinux":
-                            pass
-                        elif containing_type.__module__ == ctypes.__name__:
-                            if isinstance(elem_type, type):
-                                if issubclass(elem_type, ctypes.Array):
-                                    ctype_complex_type = ctypes.Array
-                                elif issubclass(elem_type, ctypes._Pointer):
-                                    ctype_complex_type = ctypes._Pointer
-                            else:
-                                raise TypeError("Unsupported ctypes subclass")
-                        else:
-                            raise ImportError(
-                                f"Unsupported module of {containing_type}"
-                            )
-                        logger.info(
-                            f"{containing_type} containing type of parent {elem_name} with {elem_type} and ctype {ctype_complex_type} and length {type_length}"
-                        )
-                        new_dep_node.set_field_containing_type(
-                            elem_name, containing_type
-                        )
-                        new_dep_node.set_field_type_size(elem_name, type_length)
-                        new_dep_node.set_field_ctype_complex_type(
-                            elem_name, ctype_complex_type
-                        )
-                        new_dep_node.set_field_type(elem_name, elem_type)
-                        if containing_type.__module__ == "vmlinux":
-                            if process_vmlinux_post_ast(
-                                containing_type, llvm_handler, handler, processing_stack
-                            ):
-                                new_dep_node.set_field_ready(elem_name, True)
-                        elif containing_type.__module__ == ctypes.__name__:
-                            logger.info(f"Processing ctype internal{containing_type}")
-                        else:
-                            raise TypeError(
-                                "Module not supported in recursive resolution"
-                            )
-                        continue
-                    if process_vmlinux_post_ast(
-                        elem_type, llvm_handler, handler, processing_stack
-                    ):
-                        new_dep_node.set_field_ready(elem_name, True)
-                else:
-                    raise ValueError(
-                        f"{elem_name} with type {elem_type} from module {module_name} not supported in recursive resolver"
-                    )
-
-    else:
-        raise ImportError("UNSUPPORTED Module")
-
-    print(current_symbol_name, "DONE")
-    print(f"handler readiness {handler.is_ready}")

pythonbpf/vmlinux_parser/dependency_handler.py

@@ -1,149 +0,0 @@
-from typing import Optional, Dict, List, Iterator
-from .dependency_node import DependencyNode
-
-
-class DependencyHandler:
-    """
-    Manages a collection of DependencyNode objects with no duplicates.
-
-    Ensures that no two nodes with the same name can be added and provides
-    methods to check readiness and retrieve specific nodes.
-
-    Example usage:
-        # Create a handler
-        handler = DependencyHandler()
-
-        # Create some dependency nodes
-        node1 = DependencyNode(name="node1")
-        node1.add_field("field1", str)
-        node1.set_field_value("field1", "value1")
-
-        node2 = DependencyNode(name="node2")
-        node2.add_field("field1", int)
-
-        # Add nodes to the handler
-        handler.add_node(node1)
-        handler.add_node(node2)
-
-        # Check if a specific node exists
-        print(handler.has_node("node1"))  # True
-
-        # Get a reference to a node and modify it
-        node = handler.get_node("node2")
-        node.set_field_value("field1", 42)
-
-        # Check if all nodes are ready
-        print(handler.is_ready)  # False (node2 is ready, but node1 isn't)
-    """
-
-    def __init__(self):
-        # Using a dictionary with node names as keys ensures name uniqueness
-        # and provides efficient lookups
-        self._nodes: Dict[str, DependencyNode] = {}
-
-    def add_node(self, node: DependencyNode) -> bool:
-        """
-        Add a dependency node to the handler.
-
-        Args:
-            node: The DependencyNode to add
-
-        Returns:
-            bool: True if the node was added, False if a node with the same name already exists
-
-        Raises:
-            TypeError: If the provided object is not a DependencyNode
-        """
-        if not isinstance(node, DependencyNode):
-            raise TypeError(f"Expected DependencyNode, got {type(node).__name__}")
-
-        # Check if a node with this name already exists
-        if node.name in self._nodes:
-            return False
-
-        self._nodes[node.name] = node
-        return True
-
-    @property
-    def is_ready(self) -> bool:
-        """
-        Check if all nodes are ready.
-
-        Returns:
-            bool: True if all nodes are ready (or if there are no nodes), False otherwise
-        """
-        if not self._nodes:
-            return True
-
-        return all(node.is_ready for node in self._nodes.values())
-
-    def has_node(self, name: str) -> bool:
-        """
-        Check if a node with the given name exists.
-
-        Args:
-            name: The name to check
-
-        Returns:
-            bool: True if a node with the given name exists, False otherwise
-        """
-        return name in self._nodes
-
-    def get_node(self, name: str) -> Optional[DependencyNode]:
-        """
-        Get a node by name for manipulation.
-
-        Args:
-            name: The name of the node to retrieve
-
-        Returns:
-            Optional[DependencyNode]: The node with the given name, or None if not found
-        """
-        return self._nodes.get(name)
-
-    def remove_node(self, node_or_name) -> bool:
-        """
-        Remove a node by name or reference.
-
-        Args:
-            node_or_name: The node to remove or its name
-
-        Returns:
-            bool: True if the node was removed, False if not found
-        """
-        if isinstance(node_or_name, DependencyNode):
-            name = node_or_name.name
-        else:
-            name = node_or_name
-
-        if name in self._nodes:
-            del self._nodes[name]
-            return True
-        return False
-
-    def get_all_nodes(self) -> List[DependencyNode]:
-        """
-        Get all nodes stored in the handler.
-
-        Returns:
-            List[DependencyNode]: List of all nodes
-        """
-        return list(self._nodes.values())
-
-    def __iter__(self) -> Iterator[DependencyNode]:
-        """
-        Iterate over all nodes.
-
-        Returns:
-            Iterator[DependencyNode]: Iterator over all nodes
-        """
-        return iter(self._nodes.values())
-
-    def __len__(self) -> int:
-        """
-        Get the number of nodes in the handler.
-
-        Returns:
-            int: The number of nodes
-        """
-        return len(self._nodes)

pythonbpf/vmlinux_parser/dependency_node.py

@@ -1,233 +0,0 @@
-from dataclasses import dataclass, field
-from typing import Dict, Any, Optional
-
-
-# TODO: FIX THE FUCKING TYPE NAME CONVENTION.
-@dataclass
-class Field:
-    """Represents a field in a dependency node with its type and readiness state."""
-
-    name: str
-    type: type
-    ctype_complex_type: Optional[Any]
-    containing_type: Optional[Any]
-    type_size: Optional[int]
-    bitfield_size: Optional[int]
-    value: Any = None
-    ready: bool = False
-
-    def set_ready(self, is_ready: bool = True) -> None:
-        """Set the readiness state of this field."""
-        self.ready = is_ready
-
-    def set_value(self, value: Any, mark_ready: bool = True) -> None:
-        """Set the value of this field and optionally mark it as ready."""
-        self.value = value
-        if mark_ready:
-            self.ready = True
-
-    def set_type(self, given_type, mark_ready: bool = True) -> None:
-        """Set value of the type field and mark as ready"""
-        self.type = given_type
-        if mark_ready:
-            self.ready = True
-
-    def set_containing_type(
-        self, containing_type: Optional[Any], mark_ready: bool = True
-    ) -> None:
-        """Set the containing_type of this field and optionally mark it as ready."""
-        self.containing_type = containing_type
-        if mark_ready:
-            self.ready = True
-
-    def set_type_size(self, type_size: Any, mark_ready: bool = True) -> None:
-        """Set the type_size of this field and optionally mark it as ready."""
-        self.type_size = type_size
-        if mark_ready:
-            self.ready = True
-
-    def set_ctype_complex_type(
-        self, ctype_complex_type: Any, mark_ready: bool = True
-    ) -> None:
-        """Set the ctype_complex_type of this field and optionally mark it as ready."""
-        self.ctype_complex_type = ctype_complex_type
-        if mark_ready:
-            self.ready = True
-
-    def set_bitfield_size(self, bitfield_size: Any, mark_ready: bool = True) -> None:
-        """Set the bitfield_size of this field and optionally mark it as ready."""
-        self.bitfield_size = bitfield_size
-        if mark_ready:
-            self.ready = True
-
-
-@dataclass
-class DependencyNode:
-    """
-    A node with typed fields and readiness tracking.
-
-    Example usage:
-        # Create a dependency node for a Person
-        somestruct = DependencyNode(name="struct_1")
-
-        # Add fields with their types
-        somestruct.add_field("field_1", str)
-        somestruct.add_field("field_2", int)
-        somestruct.add_field("field_3", str)
-
-        # Check if the node is ready (should be False initially)
-        print(f"Is node ready? {somestruct.is_ready}")  # False
-
-        # Set some field values
-        somestruct.set_field_value("field_1", "someproperty")
-        somestruct.set_field_value("field_2", 30)
-
-        # Check if the node is ready (still False because email is not ready)
-        print(f"Is node ready? {somestruct.is_ready}")  # False
-
-        # Set the last field and make the node ready
-        somestruct.set_field_value("field_3", "anotherproperty")
-
-        # Now the node should be ready
-        print(f"Is node ready? {somestruct.is_ready}")  # True
-
-        # You can also mark a field as not ready
-        somestruct.set_field_ready("field_3", False)
-
-        # Now the node is not ready again
-        print(f"Is node ready? {somestruct.is_ready}")  # False
-
-        # Get all field values
-        print(somestruct.get_field_values())  # {'field_1': 'someproperty', 'field_2': 30, 'field_3': 'anotherproperty'}
-
-        # Get only ready fields
-        ready_fields = somestruct.get_ready_fields()
-        print(f"Ready fields: {[field.name for field in ready_fields.values()]}")  # ['field_1', 'field_2']
-    """
-
-    name: str
-    fields: Dict[str, Field] = field(default_factory=dict)
-    _ready_cache: Optional[bool] = field(default=None, repr=False)
-
-    def add_field(
-        self,
-        name: str,
-        field_type: type,
-        initial_value: Any = None,
-        containing_type: Optional[Any] = None,
-        type_size: Optional[int] = None,
-        ctype_complex_type: Optional[int] = None,
-        bitfield_size: Optional[int] = None,
-        ready: bool = False,
-    ) -> None:
-        """Add a field to the node with an optional initial value and readiness state."""
-        self.fields[name] = Field(
-            name=name,
-            type=field_type,
-            value=initial_value,
-            ready=ready,
-            containing_type=containing_type,
-            type_size=type_size,
-            ctype_complex_type=ctype_complex_type,
-            bitfield_size=bitfield_size,
-        )
-        # Invalidate readiness cache
-        self._ready_cache = None
-
-    def get_field(self, name: str) -> Field:
-        """Get a field by name."""
-        return self.fields[name]
-
-    def set_field_value(self, name: str, value: Any, mark_ready: bool = True) -> None:
-        """Set a field's value and optionally mark it as ready."""
-        if name not in self.fields:
-            raise KeyError(f"Field '{name}' does not exist in node '{self.name}'")
-
-        self.fields[name].set_value(value, mark_ready)
-        # Invalidate readiness cache
-        self._ready_cache = None
-
-    def set_field_type(self, name: str, type: Any, mark_ready: bool = True) -> None:
-        """Set a field's type and optionally mark it as ready."""
-        if name not in self.fields:
-            raise KeyError(f"Field '{name}' does not exist in node '{self.name}'")
-
-        self.fields[name].set_type(type, mark_ready)
-        # Invalidate readiness cache
-        self._ready_cache = None
-
-    def set_field_containing_type(
-        self, name: str, containing_type: Any, mark_ready: bool = True
-    ) -> None:
-        """Set a field's containing_type and optionally mark it as ready."""
-        if name not in self.fields:
-            raise KeyError(f"Field '{name}' does not exist in node '{self.name}'")
-
-        self.fields[name].set_containing_type(containing_type, mark_ready)
-        # Invalidate readiness cache
-        self._ready_cache = None
-
-    def set_field_type_size(
-        self, name: str, type_size: Any, mark_ready: bool = True
-    ) -> None:
-        """Set a field's type_size and optionally mark it as ready."""
-        if name not in self.fields:
-            raise KeyError(f"Field '{name}' does not exist in node '{self.name}'")
-
-        self.fields[name].set_type_size(type_size, mark_ready)
-        # Invalidate readiness cache
-        self._ready_cache = None
-
-    def set_field_ctype_complex_type(
-        self, name: str, ctype_complex_type: Any, mark_ready: bool = True
-    ) -> None:
-        """Set a field's ctype_complex_type and optionally mark it as ready."""
-        if name not in self.fields:
-            raise KeyError(f"Field '{name}' does not exist in node '{self.name}'")
-
-        self.fields[name].set_ctype_complex_type(ctype_complex_type, mark_ready)
-        # Invalidate readiness cache
-        self._ready_cache = None
-
-    def set_field_bitfield_size(
-        self, name: str, bitfield_size: Any, mark_ready: bool = True
-    ) -> None:
-        """Set a field's bitfield_size and optionally mark it as ready."""
-        if name not in self.fields:
-            raise KeyError(f"Field '{name}' does not exist in node '{self.name}'")
-
-        self.fields[name].set_bitfield_size(bitfield_size, mark_ready)
-        # Invalidate readiness cache
-        self._ready_cache = None
-
-    def set_field_ready(self, name: str, is_ready: bool = True) -> None:
-        """Mark a field as ready or not ready."""
-        if name not in self.fields:
-            raise KeyError(f"Field '{name}' does not exist in node '{self.name}'")
-
-        self.fields[name].set_ready(is_ready)
-        # Invalidate readiness cache
-        self._ready_cache = None
-
-    @property
-    def is_ready(self) -> bool:
-        """Check if the node is ready (all fields are ready)."""
-        # Use cached value if available
-        if self._ready_cache is not None:
-            return self._ready_cache
-
-        # Calculate readiness only when needed
-        if not self.fields:
-            self._ready_cache = False
-            return False
-
-        self._ready_cache = all(elem.ready for elem in self.fields.values())
-        return self._ready_cache
-
-    def get_field_values(self) -> Dict[str, Any]:
-        """Get a dictionary of field names to their values."""
-        return {name: elem.value for name, elem in self.fields.items()}
-
-    def get_ready_fields(self) -> Dict[str, Field]:
-        """Get all fields that are marked as ready."""
-        return {name: elem for name, elem in self.fields.items() if elem.ready}

pythonbpf/vmlinux_parser/import_detector.py

@@ -1,135 +0,0 @@
-import ast
-import logging
-from typing import List, Tuple, Dict
-import importlib
-import inspect
-
-from .dependency_handler import DependencyHandler
-from .ir_generation import IRGenerator
-from .class_handler import process_vmlinux_class
-
-logger = logging.getLogger(__name__)
-
-
-def detect_import_statement(tree: ast.AST) -> List[Tuple[str, ast.ImportFrom]]:
-    """
-    Parse AST and detect import statements from vmlinux.
-
-    Returns a list of tuples (module_name, imported_item) for vmlinux imports.
-    Raises SyntaxError for invalid import patterns.
-
-    Args:
-        tree: The AST to parse
-
-    Returns:
-        List of tuples containing (module_name, imported_item) for each vmlinux import
-
-    Raises:
-        SyntaxError: If multiple imports from vmlinux are attempted or import * is used
-    """
-    vmlinux_imports = []
-
-    for node in ast.walk(tree):
-        # Handle "from vmlinux import ..." statements
-        if isinstance(node, ast.ImportFrom):
-            if node.module == "vmlinux":
-                # Check for wildcard import: from vmlinux import *
-                if any(alias.name == "*" for alias in node.names):
-                    raise SyntaxError(
-                        "Wildcard imports from vmlinux are not supported. "
-                        "Please import specific types explicitly."
-                    )
-
-                # Check for multiple imports: from vmlinux import A, B, C
-                if len(node.names) > 1:
-                    imported_names = [alias.name for alias in node.names]
-                    raise SyntaxError(
-                        f"Multiple imports from vmlinux are not supported. "
-                        f"Found: {', '.join(imported_names)}. "
-                        f"Please use separate import statements for each type."
-                    )
-
-                # Check if no specific import is specified (should not happen with valid Python)
-                if len(node.names) == 0:
-                    raise SyntaxError(
-                        "Import from vmlinux must specify at least one type."
-                    )
-
-                # Valid single import
-                for alias in node.names:
-                    import_name = alias.name
-                    # Use alias if provided, otherwise use the original name (commented)
-                    # as_name = alias.asname if alias.asname else alias.name
-                    vmlinux_imports.append(("vmlinux", node))
-                    logger.info(f"Found vmlinux import: {import_name}")
-
-        # Handle "import vmlinux" statements (not typical but should be rejected)
-        elif isinstance(node, ast.Import):
-            for alias in node.names:
-                if alias.name == "vmlinux" or alias.name.startswith("vmlinux."):
-                    raise SyntaxError(
-                        "Direct import of vmlinux module is not supported. "
-                        "Use 'from vmlinux import <type>' instead."
-                    )
-
-    logger.info(f"Total vmlinux imports detected: {len(vmlinux_imports)}")
-    return vmlinux_imports
-
-
-def vmlinux_proc(tree: ast.AST, module):
-    import_statements = detect_import_statement(tree)
-
-    # initialise dependency handler
-    handler = DependencyHandler()
-    # initialise assignment dictionary of name to type
-    assignments: Dict[str, type] = {}
-
-    if not import_statements:
-        logger.info("No vmlinux imports found")
-        return
-
-    # Import vmlinux module directly
-    try:
-        vmlinux_mod = importlib.import_module("vmlinux")
-    except ImportError:
-        logger.warning("Could not import vmlinux module")
-        return
-
-    source_file = inspect.getsourcefile(vmlinux_mod)
-    if source_file is None:
-        logger.warning("Cannot find source for vmlinux module")
-        return
-
-    with open(source_file, "r") as f:
-        mod_ast = ast.parse(f.read(), filename=source_file)
-
-    for import_mod, import_node in import_statements:
-        for alias in import_node.names:
-            imported_name = alias.name
-            found = False
-            for mod_node in mod_ast.body:
-                if (
-                    isinstance(mod_node, ast.ClassDef)
-                    and mod_node.name == imported_name
-                ):
-                    process_vmlinux_class(mod_node, module, handler)
-                    found = True
-                    break
-                if isinstance(mod_node, ast.Assign):
-                    for target in mod_node.targets:
-                        if isinstance(target, ast.Name) and target.id == imported_name:
-                            process_vmlinux_assign(mod_node, module, assignments)
-                            found = True
-                            break
-                if found:
-                    break
-            if not found:
-                logger.info(
-                    f"{imported_name} not found as ClassDef or Assign in vmlinux"
-                )
-
-    IRGenerator(module, handler)
-
-
-def process_vmlinux_assign(node, module, assignments: Dict[str, type]):
-    raise NotImplementedError("Assignment handling has not been implemented yet")

pythonbpf/vmlinux_parser/ir_generation.py

@@ -1,8 +0,0 @@
-# here, we will iterate through the dependencies and generate IR once dependencies are resolved fully
-from .dependency_handler import DependencyHandler
-
-
-class IRGenerator:
-    def __init__(self, module, handler):
-        self.module = module
-        self.handler: DependencyHandler = handler

tests/c-form/ex2.bpf.c

@@ -1,10 +1,11 @@
-#include "vmlinux.h"
+#include <linux/bpf.h>
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_endian.h>
+#define u64 unsigned long long
+#define u32 unsigned int
 
 SEC("xdp")
 int hello(struct xdp_md *ctx) {
-    bpf_printk("Hello, World! %ud \n", ctx->data);
+    bpf_printk("Hello, World!\n");
     return XDP_PASS;
 }
 

tests/c-form/globals.bpf.c

@@ -1,27 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
-#include <linux/bpf.h>
-#include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
-#include <linux/types.h>
-
-struct test_struct {
-    __u64 a;
-    __u64 b;
-};
-
-struct test_struct w = {};
-volatile __u64 prev_time = 0;
-
-SEC("tracepoint/syscalls/sys_enter_execve")
-int trace_execve(void *ctx)
-{
-    bpf_printk("previous %ul now %ul", w.b, w.a);
-    __u64 ts = bpf_ktime_get_ns();
-    bpf_printk("prev %ul now %ul", prev_time, ts);
-    w.a = ts;
-    w.b = prev_time;
-    prev_time = ts;
-    return 0;
-}
-
-char LICENSE[] SEC("license") = "GPL";

tests/c-form/kprobe.bpf.c

@@ -1,19 +0,0 @@
-#include "vmlinux.h"
-#include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
-
-char LICENSE[] SEC("license") = "Dual BSD/GPL";
-
-SEC("kprobe/do_unlinkat")
-int kprobe_execve(struct pt_regs *ctx)
-{
-    bpf_printk("unlinkat created");
-    return 0;
-}
-
-SEC("kretprobe/do_unlinkat")
-int kretprobe_execve(struct pt_regs *ctx)
-{
-    bpf_printk("unlinkat returned\n");
-    return 0;
-}

tests/c-form/ringbuf.bpf.c

@@ -22,27 +22,29 @@ struct {
 SEC("tracepoint/syscalls/sys_enter_execve")
 int trace_execve(void *ctx)
 {
-    struct event *e;
+//    struct event *e;
-    __u64 pid_tgid;
+//    __u64 pid_tgid;
-    __u64 uid_gid;
+//    __u64 uid_gid;
-
+    __u32 *e;
     // Reserve space in the ringbuffer
     e = bpf_ringbuf_reserve(&events, sizeof(*e), 0);
     if (!e)
         return 0;
+//
+//    // Fill the struct with data
+//    pid_tgid = bpf_get_current_pid_tgid();
+//    e->pid = pid_tgid >> 32;
+//
+//    uid_gid = bpf_get_current_uid_gid();
+//    e->uid = uid_gid & 0xFFFFFFFF;
+//
+//    e->timestamp = bpf_ktime_get_ns();
 
-    // Fill the struct with data
+//    bpf_get_current_comm(&e->comm, sizeof(e->comm));
-    pid_tgid = bpf_get_current_pid_tgid();
+//
-    e->pid = pid_tgid >> 32;
+//    // Submit the event to ringbuffer
-
+    __u32 temp = 32;
-    uid_gid = bpf_get_current_uid_gid();
+    e = &temp;
-    e->uid = uid_gid & 0xFFFFFFFF;
-
-    e->timestamp = bpf_ktime_get_ns();
-
-    bpf_get_current_comm(&e->comm, sizeof(e->comm));
-
-    // Submit the event to ringbuffer
     bpf_ringbuf_submit(e, 0);
 
     return 0;

tests/failing_tests/binops.py

@@ -3,9 +3,9 @@ from ctypes import c_void_p, c_int64
 
 
 @bpf
-@section("tracepoint/syscalls/sys_enter_sync")
+@section("sometag1")
 def sometag(ctx: c_void_p) -> c_int64:
-    a = 1 + 2 + 1 + 12 + 13
+    a = 1 + 2 + 1
     print(f"{a}")
     return c_int64(0)
 

tests/failing_tests/binops1.py

@@ -1,5 +1,3 @@
-import logging
-
 from pythonbpf import compile, bpf, section, bpfglobal
 from ctypes import c_void_p, c_int64
 
@@ -7,7 +5,8 @@ from ctypes import c_void_p, c_int64
 @bpf
 @section("sometag1")
 def sometag(ctx: c_void_p) -> c_int64:
-    a = 1 - 1
+    b = 1 + 2
+    a = 1 + b
     return c_int64(a)
 
 
@@ -17,4 +16,4 @@ def LICENSE() -> str:
     return "GPL"
 
 
-compile(loglevel=logging.INFO)
+compile()

tests/failing_tests/condition_issue.py

@@ -0,0 +1,33 @@
+from pythonbpf import bpf, map, bpfglobal, section, compile, compile_to_ir, BPF
+from pythonbpf.maps import RingBuf
+from ctypes import c_int32, c_void_p
+
+
+# Define a map
+@bpf
+@map
+def mymap() -> RingBuf:
+    return RingBuf(max_entries=(1024))
+
+@bpf
+@section("tracepoint/syscalls/sys_enter_clone")
+def random_section(ctx: c_void_p) -> c_int32:
+    e: c_int32 = mymap().reserve(64)
+    if e == 0:  # here is the issue i think
+        return c_int32(0)
+    mymap().submit(e)
+    return c_int32(0)
+
+
+@bpf
+@bpfglobal
+def LICENSE() -> str:
+    return "GPL"
+
+
+compile_to_ir("ringbuf.py", "ringbuf.ll")
+compile()
+b = BPF()
+b.load_and_attach()
+while True:
+    print("running")

tests/failing_tests/conditionals/helper_cond.py

@@ -1,34 +0,0 @@
-from pythonbpf import bpf, map, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64, c_uint64
-from pythonbpf.maps import HashMap
-
-# NOTE: Decided against fixing this
-# as a workaround is assigning the result of lookup to a variable
-# and then using that variable in the if statement.
-# Might fix in future.
-
-
-@bpf
-@map
-def last() -> HashMap:
-    return HashMap(key=c_uint64, value=c_uint64, max_entries=3)
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    last.update(0, 1)
-    if last.lookup(0) > 0:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/failing_tests/conditionals/oneline.py

@@ -1,18 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    print("Hello, World!") if True else print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/failing_tests/conditionals/struct_ptr.py

@@ -1,34 +0,0 @@
-from pythonbpf import bpf, struct, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64, c_uint64
-
-# NOTE: Decided against fixing this
-# as one workaround is to just check any field of the struct
-# in the if statement. Ugly but works.
-# Might fix in future.
-
-
-@bpf
-@struct
-class data_t:
-    pid: c_uint64
-    ts: c_uint64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    dat = data_t()
-    if dat:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/failing_tests/direct_assign.py

@@ -4,18 +4,6 @@ from pythonbpf.maps import HashMap
 
 from ctypes import c_void_p, c_int64
 
-# NOTE: I have decided to not fix this example for now.
-# The issue is in line 31, where we are passing an expression.
-# The update helper expects a pointer type. But the problem is
-# that we must allocate the space for said pointer in the first
-# basic block. As that usage is in a different basic block, we
-# are unable to cast the expression to a pointer type. (as we never
-# allocated space for it).
-# Shall we change our space allocation logic? That allows users to
-# spam the same helper with the same args, and still run out of
-# stack space. So we consider this usage invalid for now.
-# Might fix it later.
-
 
 @bpf
 @map
@@ -26,12 +14,12 @@ def count() -> HashMap:
 @bpf
 @section("xdp")
 def hello_world(ctx: c_void_p) -> c_int64:
-    prev = count.lookup(0)
+    prev = count().lookup(0)
     if prev:
-        count.update(0, prev + 1)
+        count().update(0, prev + 1)
         return XDP_PASS
     else:
-        count.update(0, 1)
+        count().update(0, 1)
 
     return XDP_PASS
 

tests/failing_tests/globals.py

@@ -1,109 +0,0 @@
-import logging
-
-from pythonbpf import compile, bpf, section, bpfglobal, compile_to_ir
-from ctypes import c_void_p, c_int64, c_int32
-
-
-@bpf
-@bpfglobal
-def somevalue() -> c_int32:
-    return c_int32(42)
-
-
-@bpf
-@bpfglobal
-def somevalue2() -> c_int64:
-    return c_int64(69)
-
-
-@bpf
-@bpfglobal
-def somevalue1() -> c_int32:
-    return c_int32(42)
-
-
-# --- Passing examples ---
-
-
-# Simple constant return
-@bpf
-@bpfglobal
-def g1() -> c_int64:
-    return c_int64(42)
-
-
-# Constructor with one constant argument
-@bpf
-@bpfglobal
-def g2() -> c_int64:
-    return c_int64(69)
-
-
-# --- Failing examples ---
-
-# No return annotation
-# @bpf
-# @bpfglobal
-# def g3():
-#     return 42
-
-# Return annotation is complex
-# @bpf
-# @bpfglobal
-# def g4() -> List[int]:
-#     return []
-
-# # Return is missing
-# @bpf
-# @bpfglobal
-# def g5() -> c_int64:
-#     pass
-
-# # Return is a variable reference
-# #TODO: maybe fix this sometime later. It defaults to 0
-# CONST = 5
-# @bpf
-# @bpfglobal
-# def g6() -> c_int64:
-#     return c_int64(CONST)
-
-
-# Constructor with multiple args
-# TODO: this is not working. should it work ?
-@bpf
-@bpfglobal
-def g7() -> c_int64:
-    return c_int64(1)
-
-
-# Dataclass call
-# TODO: fails with dataclass
-# @dataclass
-# class Point:
-#     x: c_int64
-#     y: c_int64
-
-# @bpf
-# @bpfglobal
-# def g8() -> Point:
-#     return Point(1, 2)
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def sometag(ctx: c_void_p) -> c_int64:
-    print("test")
-    global somevalue
-    somevalue = 2
-    print(f"{somevalue}")
-    return c_int64(1)
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile_to_ir("globals.py", "globals.ll", loglevel=logging.INFO)
-compile()

tests/failing_tests/named_arg.py

@@ -1,41 +0,0 @@
-from pythonbpf import bpf, map, section, bpfglobal, compile
-from pythonbpf.helper import XDP_PASS
-from pythonbpf.maps import HashMap
-
-from ctypes import c_void_p, c_int64
-
-# NOTE: This example exposes the problems with our typing system.
-# We can't do steps on line 25 and 27.
-# prev is of type i64**. For prev + 1, we deref it down to i64
-# To assign it back to prev, we need to go back to i64**.
-# We cannot allocate space for the intermediate type now.
-# We probably need to track the ref/deref chain for each variable.
-
-
-@bpf
-@map
-def count() -> HashMap:
-    return HashMap(key=c_int64, value=c_int64, max_entries=1)
-
-
-@bpf
-@section("xdp")
-def hello_world(ctx: c_void_p) -> c_int64:
-    prev = count.lookup(0)
-    if prev:
-        prev = prev + 1
-        count.update(0, prev)
-        return XDP_PASS
-    else:
-        count.update(0, 1)
-
-    return XDP_PASS
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/failing_tests/undeclared_values.py

@@ -1,23 +0,0 @@
-import logging
-
-from pythonbpf import compile, bpf, section, bpfglobal, compile_to_ir
-from ctypes import c_void_p, c_int64
-
-
-# This should not pass as somevalue is not declared at all.
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def sometag(ctx: c_void_p) -> c_int64:
-    print("test")
-    print(f"{somevalue}")  # noqa: F821
-    return c_int64(1)
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile_to_ir("globals.py", "globals.ll", loglevel=logging.INFO)
-compile()

tests/failing_tests/xdp_pass.py

@@ -1,49 +0,0 @@
-from pythonbpf import bpf, map, section, bpfglobal, compile_to_ir
-from pythonbpf.maps import HashMap
-from pythonbpf.helper import XDP_PASS
-from vmlinux import struct_xdp_md
-
-from vmlinux import struct_ring_buffer_per_cpu  # noqa: F401
-from vmlinux import struct_xdp_buff  # noqa: F401
-
-# from vmlinux import struct_xdp_md
-from ctypes import c_int64
-
-# Instructions to how to run this program
-# 1. Install PythonBPF: pip install pythonbpf
-# 2. Run the program: python examples/xdp_pass.py
-# 3. Run the program with sudo: sudo tools/check.sh run examples/xdp_pass.o
-# 4. Attach object file to any network device with something like ./check.sh xdp examples/xdp_pass.o tailscale0
-# 5. send traffic through the device and observe effects
-
-
-@bpf
-@map
-def count() -> HashMap:
-    return HashMap(key=c_int64, value=c_int64, max_entries=1)
-
-
-@bpf
-@section("xdp")
-def hello_world(ctx: struct_xdp_md) -> c_int64:
-    key = 0
-    one = 1
-    prev = count().lookup(key)
-    if prev:
-        prevval = prev + 1
-        print(f"count: {prevval}")
-        count().update(key, prevval)
-        return XDP_PASS
-    else:
-        count().update(key, one)
-
-    return XDP_PASS
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile_to_ir("xdp_pass.py", "xdp_pass.ll")

tests/passing_tests/binops1.py

@@ -1,20 +0,0 @@
-from pythonbpf import compile, bpf, section, bpfglobal
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_sync")
-def sometag(ctx: c_void_p) -> c_int64:
-    b = 1 + 2
-    a = 1 + b
-    print(f"{a}")
-    return c_int64(0)
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/and.py

@@ -1,32 +0,0 @@
-from pythonbpf import bpf, map, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64, c_uint64
-from pythonbpf.maps import HashMap
-
-
-@bpf
-@map
-def last() -> HashMap:
-    return HashMap(key=c_uint64, value=c_uint64, max_entries=3)
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    last.update(0, 1)
-    last.update(1, 2)
-    x = last.lookup(0)
-    y = last.lookup(1)
-    if x and y:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/bool.py

@@ -1,21 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    if True:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/const_binop.py

@@ -1,21 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    if (0 + 1) * 0:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/const_int.py

@@ -1,21 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    if 0:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/map.py

@@ -1,30 +0,0 @@
-from pythonbpf import bpf, map, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64, c_uint64
-from pythonbpf.maps import HashMap
-
-
-@bpf
-@map
-def last() -> HashMap:
-    return HashMap(key=c_uint64, value=c_uint64, max_entries=3)
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    # last.update(0, 1)
-    tsp = last.lookup(0)
-    if tsp:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/map_comp.py

@@ -1,30 +0,0 @@
-from pythonbpf import bpf, map, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64, c_uint64
-from pythonbpf.maps import HashMap
-
-
-@bpf
-@map
-def last() -> HashMap:
-    return HashMap(key=c_uint64, value=c_uint64, max_entries=3)
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    last.update(0, 1)
-    tsp = last.lookup(0)
-    if tsp > 0:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/not.py

@@ -1,30 +0,0 @@
-from pythonbpf import bpf, map, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64, c_uint64
-from pythonbpf.maps import HashMap
-
-
-@bpf
-@map
-def last() -> HashMap:
-    return HashMap(key=c_uint64, value=c_uint64, max_entries=3)
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    # last.update(0, 1)
-    tsp = last.lookup(0)
-    if not tsp:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/or.py

@@ -1,32 +0,0 @@
-from pythonbpf import bpf, map, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64, c_uint64
-from pythonbpf.maps import HashMap
-
-
-@bpf
-@map
-def last() -> HashMap:
-    return HashMap(key=c_uint64, value=c_uint64, max_entries=3)
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    last.update(0, 1)
-    # last.update(1, 2)
-    x = last.lookup(0)
-    y = last.lookup(1)
-    if x or y:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/struct_access.py

@@ -1,29 +0,0 @@
-from pythonbpf import bpf, struct, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64, c_uint64
-
-
-@bpf
-@struct
-class data_t:
-    pid: c_uint64
-    ts: c_uint64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    dat = data_t()
-    if dat.ts:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/type_mismatch.py

@@ -1,23 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64, c_int32
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    x = 0
-    y = c_int32(0)
-    if x == y:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/var.py

@@ -1,22 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    x = 0
-    if x:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/var_binop.py

@@ -1,22 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    x = 0
-    if x * 1:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/conditionals/var_comp.py

@@ -1,22 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    x = 2
-    if x > 3:
-        print("Hello, World!")
-    else:
-        print("Goodbye, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/perf_buffer_map.py

@@ -1,7 +1,7 @@
 from pythonbpf import bpf, map, struct, section, bpfglobal, compile, compile_to_ir, BPF
 from pythonbpf.helper import ktime, pid
 from pythonbpf.maps import PerfEventArray
-import logging
+
 from ctypes import c_void_p, c_int32, c_uint64
 
 
@@ -42,8 +42,8 @@ def LICENSE() -> str:
     return "GPL"
 
 
+compile()
 compile_to_ir("perf_buffer_map.py", "perf_buffer_map.ll")
-compile(loglevel=logging.INFO)
 b = BPF()
 b.load_and_attach()
 

tests/passing_tests/return/binop_const.py

@@ -1,18 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    print("Hello, World!")
-    return 1 + 1 - 2
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/return/binop_var.py

@@ -1,19 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    print("Hello, World!")
-    a = 2
-    return a - 2
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/return/bool.py

@@ -1,18 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    print("Hello, World!")
-    return True
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/return/int.py

@@ -1,18 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    print("Hello, World!")
-    return 1
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/return/null.py

@@ -1,18 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    print("Hello, World!")
-    return
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/return/typecast_binops.py

@@ -1,20 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int32
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int32:
-    print("Hello, World!")
-    a = 1  # int64
-    x = 1  # int64
-    return c_int32(a - x)  # typecast to int32
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/return/typecast_const.py

@@ -1,18 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int32
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int32:
-    print("Hello, World!")
-    return c_int32(1)
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/return/typecast_var.py

@@ -1,19 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int32
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int32:
-    print("Hello, World!")
-    a = 1  # int64
-    return c_int32(a)  # typecast to int32
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/return/var.py

@@ -1,19 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    print("Hello, World!")
-    a = 1
-    return a
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/return/xdp.py

@@ -1,19 +0,0 @@
-from pythonbpf import bpf, section, bpfglobal, compile
-from ctypes import c_void_p, c_int64
-from pythonbpf.helper import XDP_PASS
-
-
-@bpf
-@section("tracepoint/syscalls/sys_enter_execve")
-def hello_world(ctx: c_void_p) -> c_int64:
-    print("Hello, World!")
-    return XDP_PASS
-
-
-@bpf
-@bpfglobal
-def LICENSE() -> str:
-    return "GPL"
-
-
-compile()

tests/passing_tests/ringbuf.py

@@ -1,5 +1,5 @@
-from pythonbpf import bpf, BPF, map, bpfglobal, section, compile, compile_to_ir
+from pythonbpf import bpf, map, bpfglobal, section, compile, compile_to_ir, BPF
-from pythonbpf.maps import RingBuf, HashMap
+from pythonbpf.maps import RingBuf
 from ctypes import c_int32, c_void_p
 
 
@@ -9,17 +9,13 @@ from ctypes import c_int32, c_void_p
 def mymap() -> RingBuf:
     return RingBuf(max_entries=(1024))
 
-
-@bpf
-@map
-def mymap2() -> HashMap:
-    return HashMap(key=c_int32, value=c_int32, max_entries=1024)
-
-
 @bpf
 @section("tracepoint/syscalls/sys_enter_clone")
 def random_section(ctx: c_void_p) -> c_int32:
     print("Hello")
+    e = mymap().reserve(6)
+    if e:
+        mymap().submit(e)
     return c_int32(0)
 
 
@@ -33,3 +29,5 @@ compile_to_ir("ringbuf.py", "ringbuf.ll")
 compile()
 b = BPF()
 b.load_and_attach()
+while True:
+    print("running")

tools/vmlinux-gen.py

@@ -1,379 +0,0 @@
-#!/usr/bin/env python3
-"""
-BTF to Python ctypes Converter
-Converts Linux kernel BTF (BPF Type Format) to Python ctypes definitions.
-
-This tool automates the process of:
-1. Dumping BTF from vmlinux
-2. Preprocessing enum definitions
-3. Processing struct kioctx to extract anonymous nested structs
-4. Running C preprocessor
-5. Converting to Python ctypes using clang2py
-6. Post-processing the output
-
-Requirements:
-- bpftool
-- clang
-- ctypeslib2 (pip install ctypeslib2)
-"""
-
-import argparse
-import os
-import re
-import subprocess
-import sys
-import tempfile
-
-
-class BTFConverter:
-    def __init__(
-        self,
-        btf_source="/sys/kernel/btf/vmlinux",
-        output_file="vmlinux.py",
-        keep_intermediate=False,
-        verbose=False,
-    ):
-        self.btf_source = btf_source
-        self.output_file = output_file
-        self.keep_intermediate = keep_intermediate
-        self.verbose = verbose
-        self.temp_dir = tempfile.mkdtemp() if not keep_intermediate else "."
-
-    def log(self, message):
-        """Print message if verbose mode is enabled."""
-        if self.verbose:
-            print(f"[*] {message}")
-
-    def run_command(self, cmd, description):
-        """Run a shell command and handle errors."""
-        self.log(f"{description}...")
-        try:
-            result = subprocess.run(
-                cmd, shell=True, check=True, capture_output=True, text=True
-            )
-            if self.verbose and result.stdout:
-                print(result.stdout)
-            return result
-        except subprocess.CalledProcessError as e:
-            print(f"Error during {description}:", file=sys.stderr)
-            print(e.stderr, file=sys.stderr)
-            sys.exit(1)
-
-    def step1_dump_btf(self):
-        """Step 1: Dump BTF from vmlinux."""
-        vmlinux_h = os.path.join(self.temp_dir, "vmlinux.h")
-        cmd = f"bpftool btf dump file {self.btf_source} format c > {vmlinux_h}"
-        self.run_command(cmd, "Dumping BTF from vmlinux")
-        return vmlinux_h
-
-    def step2_preprocess_enums(self, input_file):
-        """Step 1.5: Preprocess enum definitions."""
-        self.log("Preprocessing enum definitions...")
-
-        with open(input_file, "r") as f:
-            original_code = f.read()
-
-        # Extract anonymous enums
-        enums = re.findall(
-            r"(?<!typedef\s)(enum\s*\{[^}]*\})\s*(\w+)\s*(?::\s*\d+)?\s*;",
-            original_code,
-        )
-        enum_defs = [enum_block + ";" for enum_block, _ in enums]
-
-        # Replace anonymous enums with int declarations
-        processed_code = re.sub(
-            r"(?<!typedef\s)enum\s*\{[^}]*\}\s*(\w+)\s*(?::\s*\d+)?\s*;",
-            r"int \1;",
-            original_code,
-        )
-
-        # Prepend enum definitions
-        if enum_defs:
-            enum_text = "\n".join(enum_defs) + "\n\n"
-            processed_code = enum_text + processed_code
-
-        output_file = os.path.join(self.temp_dir, "vmlinux_processed.h")
-        with open(output_file, "w") as f:
-            f.write(processed_code)
-
-        return output_file
-
-    def step2_5_process_kioctx(self, input_file):
-        # TODO: this is a very bad bug and design decision. A single struct has an issue mostly.
-        """Step 2.5: Process struct kioctx to extract nested anonymous structs."""
-        self.log("Processing struct kioctx nested structs...")
-
-        with open(input_file, "r") as f:
-            content = f.read()
-
-        # Pattern to match struct kioctx with its full body (handles multiple nesting levels)
-        kioctx_pattern = (
-            r"struct\s+kioctx\s*\{(?:[^{}]|\{(?:[^{}]|\{[^{}]*\})*\})*\}\s*;"
-        )
-
-        def process_kioctx_replacement(match):
-            full_struct = match.group(0)
-            self.log(f"Found struct kioctx, length: {len(full_struct)} chars")
-
-            # Extract the struct body (everything between outermost { and })
-            body_match = re.search(
-                r"struct\s+kioctx\s*\{(.*)\}\s*;", full_struct, re.DOTALL
-            )
-            if not body_match:
-                return full_struct
-
-            body = body_match.group(1)
-
-            # Find all anonymous structs within the body
-            # Pattern: struct { ... } followed by ; (not a member name)
-            # anon_struct_pattern = r"struct\s*\{[^}]*\}"
-
-            anon_structs = []
-            anon_counter = 4  # Start from 4, counting down to 1
-
-            def replace_anonymous_struct(m):
-                nonlocal anon_counter
-                anon_struct_content = m.group(0)
-
-                # Extract the body of the anonymous struct
-                anon_body_match = re.search(
-                    r"struct\s*\{(.*)\}", anon_struct_content, re.DOTALL
-                )
-                if not anon_body_match:
-                    return anon_struct_content
-
-                anon_body = anon_body_match.group(1)
-
-                # Create the named struct definition
-                anon_name = f"__anon{anon_counter}"
-                member_name = f"a{anon_counter}"
-
-                # Store the struct definition
-                anon_structs.append(f"struct {anon_name} {{{anon_body}}};")
-
-                anon_counter -= 1
-
-                # Return the member declaration
-                return f"struct {anon_name} {member_name}"
-
-            # Process the body, finding and replacing anonymous structs
-            # We need to be careful to only match anonymous structs followed by ;
-            processed_body = body
-
-            # Find all occurrences and process them
-            pattern_with_semicolon = r"struct\s*\{([^}]*)\}\s*;"
-            matches = list(re.finditer(pattern_with_semicolon, body, re.DOTALL))
-
-            if not matches:
-                self.log("No anonymous structs found in kioctx")
-                return full_struct
-
-            self.log(f"Found {len(matches)} anonymous struct(s)")
-
-            # Process in reverse order to maintain string positions
-            for match in reversed(matches):
-                anon_struct_content = match.group(1)
-                start_pos = match.start()
-                end_pos = match.end()
-
-                # Create the named struct definition
-                anon_name = f"__anon{anon_counter}"
-                member_name = f"a{anon_counter}"
-
-                # Store the struct definition
-                anon_structs.insert(0, f"struct {anon_name} {{{anon_struct_content}}};")
-
-                # Replace in the body
-                replacement = f"struct {anon_name} {member_name};"
-                processed_body = (
-                    processed_body[:start_pos] + replacement + processed_body[end_pos:]
-                )
-
-                anon_counter -= 1
-
-            # Rebuild the complete definition
-            if anon_structs:
-                # Prepend the anonymous struct definitions
-                anon_definitions = "\n".join(anon_structs) + "\n\n"
-                new_struct = f"struct kioctx {{{processed_body}}};"
-                return anon_definitions + new_struct
-            else:
-                return full_struct
-
-        # Apply the transformation
-        processed_content = re.sub(
-            kioctx_pattern, process_kioctx_replacement, content, flags=re.DOTALL
-        )
-
-        output_file = os.path.join(self.temp_dir, "vmlinux_kioctx_processed.h")
-        with open(output_file, "w") as f:
-            f.write(processed_content)
-
-        self.log(f"Saved kioctx-processed output to {output_file}")
-        return output_file
-
-    def step3_run_preprocessor(self, input_file):
-        """Step 2: Run C preprocessor."""
-        output_file = os.path.join(self.temp_dir, "vmlinux.i")
-        cmd = f"clang -E {input_file} > {output_file}"
-        self.run_command(cmd, "Running C preprocessor")
-        return output_file
-
-    def step4_convert_to_ctypes(self, input_file):
-        """Step 3: Convert to Python ctypes using clang2py."""
-        output_file = os.path.join(self.temp_dir, "vmlinux_raw.py")
-        cmd = (
-            f"clang2py {input_file} -o {output_file} "
-            f'--clang-args="-fno-ms-extensions -I/usr/include -I/usr/include/linux"'
-        )
-        self.run_command(cmd, "Converting to Python ctypes")
-        return output_file
-
-    def step5_postprocess(self, input_file):
-        """Step 4: Post-process the generated Python file."""
-        self.log("Post-processing Python ctypes definitions...")
-
-        with open(input_file, "r") as f:
-            data = f.read()
-
-        # Remove lines like ('_45', ctypes.c_int64, 0)
-        data = re.sub(r"\('_[0-9]+',\s*ctypes\.[a-zA-Z0-9_]+,\s*0\),?\s*\n?", "", data)
-
-        # Replace ('_20', ctypes.c_uint64, 64) → ('_20', ctypes.c_uint64)
-        data = re.sub(
-            r"\('(_[0-9]+)',\s*(ctypes\.[a-zA-Z0-9_]+),\s*[0-9]+\)", r"('\1', \2)", data
-        )
-
-        # Replace ('_20', ctypes.c_char, 8) with ('_20', ctypes.c_uint8, 8)
-        data = re.sub(r"(ctypes\.c_char)(\s*,\s*\d+\))", r"ctypes.c_uint8\2", data)
-
-        # below to replace those c_bool with bitfield greater than 8
-        def repl(m):
-            name, bits = m.groups()
-            return (
-                f"('{name}', ctypes.c_uint32, {bits})" if int(bits) > 8 else m.group(0)
-            )
-
-        data = re.sub(r"\('([^']+)',\s*ctypes\.c_bool,\s*(\d+)\)", repl, data)
-
-        # Remove ctypes. prefix from invalid entries
-        invalid_ctypes = ["bpf_iter_state", "_cache_type", "fs_context_purpose"]
-        for name in invalid_ctypes:
-            data = re.sub(rf"\bctypes\.{name}\b", name, data)
-
-        with open(self.output_file, "w") as f:
-            f.write(data)
-
-        self.log(f"Saved final output to {self.output_file}")
-
-    def cleanup(self):
-        """Remove temporary files if not keeping them."""
-        if not self.keep_intermediate and self.temp_dir != ".":
-            self.log(f"Cleaning up temporary directory: {self.temp_dir}")
-            import shutil
-
-            shutil.rmtree(self.temp_dir, ignore_errors=True)
-
-    def convert(self):
-        """Run the complete conversion pipeline."""
-        try:
-            self.log("Starting BTF to Python ctypes conversion...")
-
-            # Check dependencies
-            self.check_dependencies()
-
-            # Run conversion pipeline
-            vmlinux_h = self.step1_dump_btf()
-            vmlinux_processed_h = self.step2_preprocess_enums(vmlinux_h)
-            vmlinux_kioctx_h = self.step2_5_process_kioctx(vmlinux_processed_h)
-            vmlinux_i = self.step3_run_preprocessor(vmlinux_kioctx_h)
-            vmlinux_raw_py = self.step4_convert_to_ctypes(vmlinux_i)
-            self.step5_postprocess(vmlinux_raw_py)
-
-            print(f"\n✓ Conversion complete! Output saved to: {self.output_file}")
-
-        except Exception as e:
-            print(f"\n✗ Error during conversion: {e}", file=sys.stderr)
-            import traceback
-
-            traceback.print_exc()
-            sys.exit(1)
-        finally:
-            self.cleanup()
-
-    def check_dependencies(self):
-        """Check if required tools are available."""
-        self.log("Checking dependencies...")
-
-        dependencies = {
-            "bpftool": "bpftool --version",
-            "clang": "clang --version",
-            "clang2py": "clang2py --version",
-        }
-
-        missing = []
-        for tool, cmd in dependencies.items():
-            try:
-                subprocess.run(cmd, shell=True, check=True, capture_output=True)
-            except subprocess.CalledProcessError:
-                missing.append(tool)
-
-        if missing:
-            print("Error: Missing required dependencies:", file=sys.stderr)
-            for tool in missing:
-                print(f"  - {tool}", file=sys.stderr)
-            if "clang2py" in missing:
-                print("\nInstall ctypeslib2: pip install ctypeslib2", file=sys.stderr)
-            sys.exit(1)
-
-
-def main():
-    parser = argparse.ArgumentParser(
-        description="Convert Linux kernel BTF to Python ctypes definitions",
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-        epilog="""
-Examples:
-  %(prog)s
-  %(prog)s -o kernel_types.py
-  %(prog)s --btf-source /sys/kernel/btf/custom_module -k -v
-        """,
-    )
-
-    parser.add_argument(
-        "--btf-source",
-        default="/sys/kernel/btf/vmlinux",
-        help="Path to BTF source (default: /sys/kernel/btf/vmlinux)",
-    )
-
-    parser.add_argument(
-        "-o",
-        "--output",
-        default="vmlinux.py",
-        help="Output Python file (default: vmlinux.py)",
-    )
-
-    parser.add_argument(
-        "-k",
-        "--keep-intermediate",
-        action="store_true",
-        help="Keep intermediate files (vmlinux.h, vmlinux_processed.h, etc.)",
-    )
-
-    parser.add_argument(
-        "-v", "--verbose", action="store_true", help="Enable verbose output"
-    )
-
-    args = parser.parse_args()
-
-    converter = BTFConverter(
-        btf_source=args.btf_source,
-        output_file=args.output,
-        keep_intermediate=args.keep_intermediate,
-        verbose=args.verbose,
-    )
-
-    converter.convert()
-
-
-if __name__ == "__main__":
-    main()