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https://github.com/varun-r-mallya/Python-BPF.git
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format chore
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@ -79,7 +79,7 @@ def _get_field_debug_type(
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"""
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# Handle complex types (arrays, pointers)
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if field.ctype_complex_type is not None:
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#TODO: Check if this is a CFUNCTYPE (function pointer), but sadly it just checks callable for now
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# TODO: Check if this is a CFUNCTYPE (function pointer), but sadly it just checks callable for now
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if callable(field.ctype_complex_type):
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# Handle function pointer types, create a void pointer as a placeholder
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return generator.create_pointer_type(None), 64
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@ -14,6 +14,7 @@ class IRGenerator:
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# This field keeps track of the non_struct names to avoid duplicate name errors.
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type_number = 0
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unprocessed_store = []
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# get the assignments dict and add this stuff to it.
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def __init__(self, llvm_module, handler: DependencyHandler, assignments):
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self.llvm_module = llvm_module
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@ -187,13 +188,17 @@ class IRGenerator:
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while hasattr(base_containing_type, "_type_"):
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next_type = base_containing_type._type_
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# Stop if _type_ is a string (like 'c' for c_char)
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#TODO: stacked pointers not handl;ing ctypes check here as well
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# TODO: stacked pointers not handl;ing ctypes check here as well
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if isinstance(next_type, str):
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break
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base_containing_type = next_type
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# Get the base struct name
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base_struct_name = base_containing_type.__name__ if hasattr(base_containing_type, "__name__") else str(base_containing_type)
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base_struct_name = (
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base_containing_type.__name__
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if hasattr(base_containing_type, "__name__")
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else str(base_containing_type)
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)
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# Look up the size using the base struct name
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containing_type_size = self.handler[base_struct_name].current_offset
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@ -212,14 +217,23 @@ class IRGenerator:
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else:
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for i in range(0, array_size):
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field_co_re_name, returned = self._struct_name_generator(
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struct, field, field_index, True, i, containing_type_size
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struct,
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field,
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field_index,
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True,
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i,
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containing_type_size,
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)
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globvar = ir.GlobalVariable(
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self.llvm_module, ir.IntType(64), name=field_co_re_name
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)
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globvar.linkage = "external"
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globvar.set_metadata("llvm.preserve.access.index", debug_info)
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self.generated_field_names[struct.name][field_name] = globvar
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globvar.set_metadata(
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"llvm.preserve.access.index", debug_info
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)
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self.generated_field_names[struct.name][field_name] = (
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globvar
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)
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field_index += 1
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else:
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field_co_re_name, returned = self._struct_name_generator(
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@ -272,7 +286,7 @@ class IRGenerator:
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return unprocessed_type + "_" + str(self.type_number), False
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else:
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self.unprocessed_store.append(unprocessed_type)
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return unprocessed_type, False
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return unprocessed_type, False
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# raise TypeError(
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# "Name generation cannot occur due to type name not starting with struct"
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# )
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@ -7,8 +7,8 @@ from ctypes import c_int64, c_void_p
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@bpf
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@section("kprobe/blk_mq_start_request")
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def example(ctx: c_void_p) -> c_int64:
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d = XDP_PASS # This gives an error, but
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e = XDP_PASS + 0 # this does not
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d = XDP_PASS # This gives an error, but
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e = XDP_PASS + 0 # this does not
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print(f"test1 {e} test2 {d}")
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return c_int64(0)
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@ -1,7 +1,7 @@
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from vmlinux import struct_request, struct_pt_regs
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from pythonbpf import bpf, section, bpfglobal, compile_to_ir
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import logging
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from ctypes import c_int64, c_void_p
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from ctypes import c_int64
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@bpf
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@ -1,4 +1,4 @@
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from vmlinux import struct_request, struct_pt_regs, XDP_PASS
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from vmlinux import struct_pt_regs
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from pythonbpf import bpf, section, bpfglobal, compile_to_ir
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import logging
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from ctypes import c_int64
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