libgomp: Add interop types and routines to OpenMP's headers and module

This commit adds OpenMP 5.1+'s interop enumeration, type and routine
declarations to the C/C++ header file and, new in OpenMP TR13, also to
the Fortran module and omp_lib.h header file.

While a stub implementation is provided, only with foreign runtime
support by the libgomp GPU plugins and with the 'interop' directive,
this becomes really useful.

libgomp/ChangeLog:

	* fortran.c (omp_get_interop_str_, omp_get_interop_name_,
	omp_get_interop_type_desc_, omp_get_interop_rc_desc_): Add.
	* libgomp.map (GOMP_5.1.3): New; add interop routines.
	* omp.h.in: Add interop typedefs, enum and prototypes.
	(__GOMP_DEFAULT_NULL): Define.
	(omp_target_memcpy_async, omp_target_memcpy_rect_async):
	Use it for the optional depend argument.
	* omp_lib.f90.in: Add paramters and interfaces for interop.
	* omp_lib.h.in: Likewise; move F90 '&' to column 81 for
	-ffree-length-80.
	* target.c (omp_get_num_interop_properties, omp_get_interop_int,
	omp_get_interop_ptr, omp_get_interop_str, omp_get_interop_name,
	omp_get_interop_type_desc, omp_get_interop_rc_desc): Add.
	* config/gcn/target.c (omp_get_num_interop_properties,
	omp_get_interop_int, omp_get_interop_ptr, omp_get_interop_str,
	omp_get_interop_name, omp_get_interop_type_desc,
	omp_get_interop_rc_desc): Add.
	* config/nvptx/target.c (omp_get_num_interop_properties,
	omp_get_interop_int, omp_get_interop_ptr, omp_get_interop_str,
	omp_get_interop_name, omp_get_interop_type_desc,
	omp_get_interop_rc_desc): Add.
	* testsuite/libgomp.c-c++-common/interop-routines-1.c: New test.
	* testsuite/libgomp.c-c++-common/interop-routines-2.c: New test.
	* testsuite/libgomp.fortran/interop-routines-1.F90: New test.
	* testsuite/libgomp.fortran/interop-routines-2.F90: New test.
	* testsuite/libgomp.fortran/interop-routines-3.F: New test.
	* testsuite/libgomp.fortran/interop-routines-4.F: New test.
	* testsuite/libgomp.fortran/interop-routines-5.F: New test.
	* testsuite/libgomp.fortran/interop-routines-6.F: New test.
	* testsuite/libgomp.fortran/interop-routines-7.F90: New test.

1 files changed, 41 insertions, 0 deletions

diff --git a/libgomp/fortran.c b/libgomp/fortran.c
index cfbea32..a76c33c 100644
--- a/libgomp/fortran.c
+++ b/libgomp/fortran.c
@@ -102,6 +102,10 @@ ialias_redirect (omp_set_default_allocator)
 ialias_redirect (omp_get_default_allocator)
 ialias_redirect (omp_display_env)
 ialias_redirect (omp_fulfill_event)
+ialias_redirect (omp_get_interop_str)
+ialias_redirect (omp_get_interop_name)
+ialias_redirect (omp_get_interop_type_desc)
+ialias_redirect (omp_get_interop_rc_desc)
 #endif
 
 #ifndef LIBGOMP_GNU_SYMBOL_VERSIONING
@@ -793,6 +797,43 @@ omp_get_default_allocator_ ()
   return (intptr_t) omp_get_default_allocator ();
 }
 
+void
+omp_get_interop_str_ (const char **res, size_t *res_len,
+		      const omp_interop_t interop,
+		      omp_interop_property_t property_id,
+		      omp_interop_rc_t *ret_code)
+{
+  *res = omp_get_interop_str (interop, property_id, ret_code);
+  *res_len = *res ? strlen (*res) : 0;
+}
+
+void
+omp_get_interop_name_ (const char **res, size_t *res_len,
+		       const omp_interop_t interop,
+		       omp_interop_property_t property_id)
+{
+  *res = omp_get_interop_name (interop, property_id);
+  *res_len = *res ? strlen (*res) : 0;
+}
+
+void
+omp_get_interop_type_desc_ (const char **res, size_t *res_len,
+			    const omp_interop_t interop,
+			    omp_interop_property_t property_id)
+{
+  *res = omp_get_interop_type_desc (interop, property_id);
+  *res_len = *res ? strlen (*res) : 0;
+}
+
+void
+omp_get_interop_rc_desc_ (const char **res, size_t *res_len,
+			  const omp_interop_t interop,
+			  omp_interop_rc_t ret_code)
+{
+  *res = omp_get_interop_rc_desc (interop, ret_code);
+  *res_len = *res ? strlen (*res) : 0;
+}
+
 #ifndef LIBGOMP_OFFLOADED_ONLY
 
 void