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79 lines
2.9 KiB
C++
79 lines
2.9 KiB
C++
/* Support for plugin-supplied behaviors of known functions.
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Copyright (C) 2022-2026 Free Software Foundation, Inc.
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Contributed by David Malcolm <dmalcolm@redhat.com>.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_ANALYZER_KNOWN_FUNCTION_MANAGER_H
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#define GCC_ANALYZER_KNOWN_FUNCTION_MANAGER_H
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#include "analyzer/analyzer-logging.h"
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namespace ana {
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/* Instances of known_function are registered with the known_function_manager
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when the analyzer starts.
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The known_function_manager has responsibility for determining which
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known_function instance (if any) is relevant at a call site, by checking
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name or id, and by calling known_function::matches_call_types_p to ensure
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that the known_function's preconditions hold (typically assumptions about
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types e.g. that "has 3 args, and that arg 0 is of pointer type").
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The known_function subclasses themselves have responsibility for
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determining the outcome(s) of the call. */
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class known_function_manager : public log_user
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{
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public:
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known_function_manager (logger *logger);
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~known_function_manager ();
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void add (const char *name, std::unique_ptr<known_function> kf);
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void add_std_ns (const char *name, std::unique_ptr<known_function> kf);
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void add (enum built_in_function name, std::unique_ptr<known_function> kf);
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void add (enum internal_fn ifn, std::unique_ptr<known_function> kf);
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const known_function *get_match (tree fndecl, const call_details &cd) const;
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const known_function *get_internal_fn (enum internal_fn) const;
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private:
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DISABLE_COPY_AND_ASSIGN (known_function_manager);
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const known_function *get_normal_builtin (enum built_in_function name) const;
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const known_function *
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get_normal_builtin (const builtin_known_function *builtin_kf) const;
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const known_function *get_by_identifier (tree identifier) const;
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const known_function *get_by_identifier_in_std_ns (tree identifier) const;
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/* Map from identifier to known_function instance.
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Has ownership of the latter. */
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hash_map<tree, known_function *> m_map_id_to_kf;
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/* Likewise for C++'s std:: namespace. */
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hash_map<tree, known_function *> m_std_ns_map_id_to_kf;
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/* Array of known builtins. */
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known_function *m_combined_fns_arr[CFN_LAST];
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};
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extern std::unique_ptr<known_function> make_kf_strlen ();
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} // namespace ana
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#endif /* GCC_ANALYZER_KNOWN_FUNCTION_MANAGER_H */
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