123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118 |
- /* Platform independent shared object routines for GDB.
- Copyright (C) 2011-2022 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 "common-defs.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
- gdb_dlhandle_up
- gdb_dlopen (const char *filename)
- {
- gdb_assert_not_reached ("gdb_dlopen should not be called on this platform.");
- }
- void *
- gdb_dlsym (const gdb_dlhandle_up &handle, const char *symbol)
- {
- gdb_assert_not_reached ("gdb_dlsym should not be called on this platform.");
- }
- void
- dlclose_deleter::operator() (void *handle) const
- {
- gdb_assert_not_reached ("gdb_dlclose should not be called on this platform.");
- }
- int
- is_dl_available (void)
- {
- return 0;
- }
- #else /* NO_SHARED_LIB */
- gdb_dlhandle_up
- 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 gdb_dlhandle_up (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 (const gdb_dlhandle_up &handle, const char *symbol)
- {
- #ifdef HAVE_DLFCN_H
- return dlsym (handle.get (), symbol);
- #elif __MINGW32__
- return (void *) GetProcAddress ((HMODULE) handle.get (), symbol);
- #endif
- }
- void
- dlclose_deleter::operator() (void *handle) const
- {
- #ifdef HAVE_DLFCN_H
- dlclose (handle);
- #elif __MINGW32__
- FreeLibrary ((HMODULE) handle);
- #endif
- }
- int
- is_dl_available (void)
- {
- return 1;
- }
- #endif /* NO_SHARED_LIB */
|