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-rw-r--r--libgomp/plugin/plugin-nvptx.c23
1 files changed, 20 insertions, 3 deletions
diff --git a/libgomp/plugin/plugin-nvptx.c b/libgomp/plugin/plugin-nvptx.c
index 2e72a63..825470a 100644
--- a/libgomp/plugin/plugin-nvptx.c
+++ b/libgomp/plugin/plugin-nvptx.c
@@ -49,6 +49,8 @@
#include <assert.h>
#include <errno.h>
+#define DO_PRAGMA(x) _Pragma (#x)
+
#if PLUGIN_NVPTX_DYNAMIC
# include <dlfcn.h>
@@ -56,8 +58,11 @@ struct cuda_lib_s {
# define CUDA_ONE_CALL(call) \
__typeof (call) *call;
+# define CUDA_ONE_CALL_MAYBE_NULL(call) \
+ CUDA_ONE_CALL (call)
#include "cuda-lib.def"
# undef CUDA_ONE_CALL
+# undef CUDA_ONE_CALL_MAYBE_NULL
} cuda_lib;
@@ -78,20 +83,29 @@ init_cuda_lib (void)
if (h == NULL)
return false;
-# define CUDA_ONE_CALL(call) CUDA_ONE_CALL_1 (call)
-# define CUDA_ONE_CALL_1(call) \
+# define CUDA_ONE_CALL(call) CUDA_ONE_CALL_1 (call, false)
+# define CUDA_ONE_CALL_MAYBE_NULL(call) CUDA_ONE_CALL_1 (call, true)
+# define CUDA_ONE_CALL_1(call, allow_null) \
cuda_lib.call = dlsym (h, #call); \
- if (cuda_lib.call == NULL) \
+ if (!allow_null && cuda_lib.call == NULL) \
return false;
#include "cuda-lib.def"
# undef CUDA_ONE_CALL
# undef CUDA_ONE_CALL_1
+# undef CUDA_ONE_CALL_MAYBE_NULL
cuda_lib_inited = true;
return true;
}
# define CUDA_CALL_PREFIX cuda_lib.
#else
+
+# define CUDA_ONE_CALL(call)
+# define CUDA_ONE_CALL_MAYBE_NULL(call) DO_PRAGMA (weak call)
+#include "cuda-lib.def"
+#undef CUDA_ONE_CALL_MAYBE_NULL
+#undef CUDA_ONE_CALL
+
# define CUDA_CALL_PREFIX
# define init_cuda_lib() true
#endif
@@ -136,6 +150,9 @@ init_cuda_lib (void)
#define CUDA_CALL_NOCHECK(FN, ...) \
CUDA_CALL_PREFIX FN (__VA_ARGS__)
+#define CUDA_CALL_EXISTS(FN) \
+ CUDA_CALL_PREFIX FN
+
static const char *
cuda_error (CUresult r)
{