125 lines
2.4 KiB
Plaintext
125 lines
2.4 KiB
Plaintext
// Copyright (c) 2020 Intel Corporation
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// SPDX-License-Identifer: Apache-2.0
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// In patch mode, patch all device instance to const (if not already).
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// In report mode:
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// Generate a q&d python database (a dict actually) of all the
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// declared zephyr functions. It will store each function name in 2
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// separate dicts: one storing all function having 1+ void* parameter
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// and one for all the other functions. It will store the positions
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// of the void* parameter in the first dict, and the actual number of
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// parameters in the second.
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// Then find_dev_usage.cocci can be used to verify if device instance
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// are not loosing their const qualifier.
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virtual patch
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virtual report
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////////////////////
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// Initialization //
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////////////////////
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@initialize:python
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depends on report
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@
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@@
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import pickle
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f_void = {}
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f_other = {}
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// Insert a function into right dict depending on parameters
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def insert_function(f, params):
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void_pos = []
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i = 0
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for prm in params:
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if prm.startswith("void *"):
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void_pos.append(i)
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i += 1
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if len(void_pos) != 0:
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f_void[f] = void_pos
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else:
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f_other[f] = i + 1
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///////////
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// Rules //
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///////////
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// Switch device instance to constant.
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@r_const_dev
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depends on patch
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disable optional_qualifier
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@
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@@
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-struct device *
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+const struct device *
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// Find function declarations
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@r_find_func_declare
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depends on report
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@
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identifier f;
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type ret_type;
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parameter list[nb_params] params;
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@@
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ret_type f(params);
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// Insert function declaration
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@script:python
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depends on report
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@
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f << r_find_func_declare.f;
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params << r_find_func_declare.params;
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@@
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insert_function(f, params)
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// Find function implementations and inlines
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// (maybe it should focus on static only?
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// but then first rule should not match statics.)
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@r_find_func_impl_inlines
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depends on report
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@
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identifier f;
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type ret_type;
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parameter list[nb_params] params;
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@@
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(
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ret_type f(params)
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{
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...
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}
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static inline ret_type f(params)
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{
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...
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}
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)
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// Insert function implentations and inlines
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@script:python
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depends on report
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@
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f << r_find_func_impl_inlines.f;
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params << r_find_func_impl_inlines.params;
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@@
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insert_function(f, params)
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//////////////////
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// Finalization //
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//////////////////
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@finalize:python
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depends on report
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@
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@@
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with open("function_names.pickle", "wb") as f:
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data = {}
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data['f_void'] = f_void
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data['f_other'] = f_other
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pickle.dump(data, f, pickle.HIGHEST_PROTOCOL)
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