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/* Platform independent shared object routines for GDB.
Copyright (C) 2011-2012 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdb_assert.h"
#include "gdb-dlfcn.h"
#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
#elif __MINGW32__
#include <windows.h>
#else
/* Unsupported configuration. */
#define NO_SHARED_LIB
#endif
#ifdef NO_SHARED_LIB
void *
gdb_dlopen (const char *filename)
{
gdb_assert_not_reached ("gdb_dlopen should not be called on this platform.");
}
void *
gdb_dlsym (void *handle, const char *symbol)
{
gdb_assert_not_reached ("gdb_dlsym should not be called on this platform.");
}
struct cleanup *
make_cleanup_dlclose (void *handle)
{
gdb_assert_not_reached ("make_cleanup_dlclose should not be called on this "
"platform.");
}
int
gdb_dlclose (void *handle)
{
gdb_assert_not_reached ("gdb_dlclose should not be called on this platform.");
}
int
is_dl_available (void)
{
return 0;
}
#else /* NO_SHARED_LIB */
void *
gdb_dlopen (const char *filename)
{
void *result;
#ifdef HAVE_DLFCN_H
result = dlopen (filename, RTLD_NOW);
#elif __MINGW32__
result = (void *) LoadLibrary (filename);
#endif
if (result != NULL)
return result;
#ifdef HAVE_DLFCN_H
error (_("Could not load %s: %s"), filename, dlerror());
#else
{
LPVOID buffer;
DWORD dw;
dw = GetLastError();
FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, dw, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &buffer,
0, NULL);
error (_("Could not load %s: %s"), filename, (char *) buffer);
}
#endif
}
void *
gdb_dlsym (void *handle, const char *symbol)
{
#ifdef HAVE_DLFCN_H
return dlsym (handle, symbol);
#elif __MINGW32__
return (void *) GetProcAddress (handle, symbol);
#endif
}
int
gdb_dlclose (void *handle)
{
#ifdef HAVE_DLFCN_H
return dlclose (handle);
#elif __MINGW32__
return !((int) FreeLibrary (handle));
#endif
}
static void
do_dlclose_cleanup (void *handle)
{
gdb_dlclose (handle);
}
struct cleanup *
make_cleanup_dlclose (void *handle)
{
return make_cleanup (do_dlclose_cleanup, handle);
}
int
is_dl_available (void)
{
return 1;
}
#endif /* NO_SHARED_LIB */
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