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9be8b2bf1d
In particular, alias violations are likely for the return values of dlsym(3), which get cast around arbitrarily. * src/emacs-module.c (Fmodule_load): Use ATTRIBUTE_MAY_ALIAS.
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
/* Portable API for dynamic loading.
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Copyright 2015-2017 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at
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your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef DYNLIB_H
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#define DYNLIB_H
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#include <stdbool.h>
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typedef void *dynlib_handle_ptr;
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dynlib_handle_ptr dynlib_open (const char *path);
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int dynlib_close (dynlib_handle_ptr h);
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const char *dynlib_error (void);
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ATTRIBUTE_MAY_ALIAS void *dynlib_sym (dynlib_handle_ptr h, const char *sym);
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typedef struct dynlib_function_ptr_nonce *(ATTRIBUTE_MAY_ALIAS *dynlib_function_ptr) (void);
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dynlib_function_ptr dynlib_func (dynlib_handle_ptr h, const char *sym);
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/* Sets *FILE to the file name from which PTR was loaded, and *SYM to
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its symbol name. If the file or symbol name could not be
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determined, set the corresponding argument to NULL. */
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void dynlib_addr (void *ptr, const char **file, const char **sym);
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#endif /* DYNLIB_H */
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