a2d08b9eeb
* Makefile.in: Add gdb-dlfcn.c and gdb-dlfcn.h to build system. * config.in: Add new #define HAVE_LIBDL. * configure.ac: Add check for -ldl. * configure: Re-generated by autoconf. * gdb-dlfcn.c: New file. * gdb-dlfcn.h: New file.
139 lines
2.9 KiB
C
139 lines
2.9 KiB
C
/* Platform independent shared object routines for GDB.
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Copyright (C) 2011 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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#include "defs.h"
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#include "gdb_assert.h"
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#include "gdb-dlfcn.h"
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#ifdef HAVE_DLFCN_H
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#include <dlfcn.h>
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#elif __MINGW32__
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#include <windows.h>
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#else
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/* Unsupported configuration. */
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#define NO_SHARED_LIB
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#endif
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#ifdef NO_SHARED_LIB
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void *
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gdb_dlopen (const char *filename)
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{
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gdb_assert_not_reached ("gdb_dlopen should not be called on this platform.");
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}
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void *
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gdb_dlsym (void *handle, const char *symbol)
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{
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gdb_assert_not_reached ("gdb_dlsym should not be called on this platform.");
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}
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struct cleanup *
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make_cleanup_dlclose (void *handle)
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{
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gdb_assert_not_reached ("make_cleanup_dlclose should not be called on this "
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"platform.");
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}
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int
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gdb_dlclose (void *handle)
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{
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gdb_assert_not_reached ("gdb_dlclose should not be called on this platform.");
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}
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int
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is_dl_available (void)
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{
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return 0;
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}
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#else /* NO_SHARED_LIB */
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void *
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gdb_dlopen (const char *filename)
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{
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void *result;
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#ifdef HAVE_DLFCN_H
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result = dlopen (filename, RTLD_NOW);
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#elif __MINGW32__
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result = (void *) LoadLibrary (filename);
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#endif
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if (result != NULL)
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return result;
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#ifdef HAVE_DLFCN_H
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error (_("Could not load %s: %s"), filename, dlerror());
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#else
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{
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LPVOID buffer;
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DWORD dw;
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dw = GetLastError();
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FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL, dw, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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(LPTSTR) &buffer
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0, NULL);
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error (_("Could not load %s: %s"), filename, (char *) buffer);
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}
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#endif
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}
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void *
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gdb_dlsym (void *handle, const char *symbol)
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{
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#ifdef HAVE_DLFCN_H
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return dlsym (handle, symbol);
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#elif __MINGW32__
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return (void *) GetProcAddress (handle, symbol);
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#endif
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}
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int
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gdb_dlclose (void *handle)
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{
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#ifdef HAVE_DLFCN_H
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return dlclose (handle);
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#elif __MINGW32__
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return !((int) FreeLibrary (handle));
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#endif
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}
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static void
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do_dlclose_cleanup (void *handle)
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{
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gdb_dlclose (handle);
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}
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struct cleanup *
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make_cleanup_dlclose (void *handle)
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{
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return make_cleanup (do_dlclose_cleanup, handle);
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}
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int
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is_dl_available (void)
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{
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return 1;
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}
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#endif /* NO_SHARED_LIB */
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