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0e8621a0be
This introduces gdb_dlhandle_up, a unique_ptr that can close a dlopen'd library. All the functions working with dlopen handles are updated to use this new type. I did not try to build this on Windows. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * jit.c (struct jit_reader): Declare separately. Add constructor and destructor. Change type of "handle". (loaded_jit_reader): Define separately. (jit_reader_load): Update. New "new". (jit_reader_unload_command): Use "delete". * gdb-dlfcn.h (struct dlclose_deleter): New. (gdb_dlhandle_up): New typedef. (gdb_dlopen, gdb_dlsym): Update types. (gdb_dlclose): Remove. * gdb-dlfcn.c (gdb_dlopen): Return a gdb_dlhandle_up. (gdb_dlsym): Change type of "handle". (make_cleanup_dlclose): Remove. (dlclose_deleter::operator()): Rename from gdb_dlclose. * compile/compile-c-support.c (load_libcc): Update.
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/* Platform independent shared object routines for GDB.
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Copyright (C) 2011-2017 Free Software Foundation, Inc.
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This file is part of GDB.
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This program 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
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(at your option) any later version.
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This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDB_DLFCN_H
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#define GDB_DLFCN_H
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/* A deleter that closes an open dynamic library. */
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struct dlclose_deleter
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{
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void operator() (void *handle) const;
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};
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/* A unique pointer that points to a dynamic library. */
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typedef std::unique_ptr<void, dlclose_deleter> gdb_dlhandle_up;
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/* Load the dynamic library file named FILENAME, and return a handle
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for that dynamic library. Return NULL if the loading fails for any
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reason. */
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gdb_dlhandle_up gdb_dlopen (const char *filename);
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/* Return the address of the symbol named SYMBOL inside the shared
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library whose handle is HANDLE. Return NULL when the symbol could
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not be found. */
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void *gdb_dlsym (const gdb_dlhandle_up &handle, const char *symbol);
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/* Return non-zero if the dynamic library functions are available on
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this platform. */
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int is_dl_available(void);
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#endif /* GDB_DLFCN_H */
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