1 // Copyright (c) 2017-2026, Lawrence Livermore National Security, LLC and other CEED contributors.
2 // All Rights Reserved. See the top-level LICENSE and NOTICE files for details.
3 //
4 // SPDX-License-Identifier: BSD-2-Clause
5 //
6 // This file is part of CEED: http://github.com/ceed
7
8 #include "ceed-backend-weak.h"
9 #include <ceed.h>
10 #include <ceed/backend.h>
11 #include <stdarg.h>
12
13 // LCOV_EXCL_START
14 // This function provides improved error messages for uncompiled backends
CeedInit_Weak(const char * resource,Ceed ceed)15 static int CeedInit_Weak(const char *resource, Ceed ceed) {
16 return CeedError(ceed, CEED_ERROR_UNSUPPORTED, "Backend not currently compiled: %s\nConsult the installation instructions to compile this backend",
17 resource);
18 }
19
20 // This function provides a debug target for weak symbols
CeedRegister_Weak(const char * name,int num_prefixes,...)21 int CeedRegister_Weak(const char *name, int num_prefixes, ...) {
22 va_list prefixes;
23 int ierr;
24
25 va_start(prefixes, num_prefixes);
26 for (int i = 0; i < num_prefixes; i++) {
27 const char *prefix = va_arg(prefixes, const char *);
28
29 CeedDebugEnv("Weak Register : %s", prefix);
30 ierr = CeedRegisterImpl(prefix, CeedInit_Weak, CEED_MAX_BACKEND_PRIORITY);
31 if (ierr) {
32 va_end(prefixes); // Prevent leak on error
33 return ierr;
34 }
35 }
36 va_end(prefixes);
37 return CEED_ERROR_SUCCESS;
38 }
39 // LCOV_EXCL_STOP
40