Deprecate ABI v2 and v3 in libcudacxx

NVIDIA · Jan 28, 2025 · 39d1992 · 39d1992
1 parent e08bda4
commit 39d1992
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diff --git a/libcudacxx/include/cuda/std/detail/__config b/libcudacxx/include/cuda/std/detail/__config
@@ -30,6 +30,10 @@
 #  define _LIBCUDACXX_CUDA_ABI_VERSION _LIBCUDACXX_CUDA_ABI_VERSION_LATEST
 #endif
 
+#if (_LIBCUDACXX_CUDA_ABI_VERSION < 4) && !defined(LIBCUDACXX_IGNORE_DEPRECATED_ABI)
+#  error libcu++ ABIs older than version 4 are deprecated, define LIBCUDACXX_IGNORE_DEPRECATED_ABI to ignore
+#endif
+
 #ifdef _LIBCUDACXX_PIPELINE_ASSUMED_ABI_VERSION
 #  if _LIBCUDACXX_PIPELINE_ASSUMED_ABI_VERSION != _LIBCUDACXX_CUDA_ABI_VERSION
 #    error cuda_pipeline.h has assumed a different libcu++ ABI version than provided by this library. To fix this, please include a libcu++ header before including cuda_pipeline.h, or upgrade to a version of the toolkit this version of libcu++ shipped in.

diff --git a/libcudacxx/test/libcudacxx/CMakeLists.txt b/libcudacxx/test/libcudacxx/CMakeLists.txt
@@ -44,6 +44,7 @@ string(APPEND LIBCUDACXX_TEST_COMPILER_FLAGS " -DCCCL_ENABLE_ASSERTIONS")
 
 # Disable dialect deprecation
 string(APPEND LIBCUDACXX_TEST_COMPILER_FLAGS " -DCCCL_IGNORE_DEPRECATED_CPP_DIALECT")
+string(APPEND LIBCUDACXX_TEST_COMPILER_FLAGS " -DLIBCUDACXX_IGNORE_DEPRECATED_ABI")
 
 if (NOT MSVC AND NOT ${CMAKE_CUDA_COMPILER_ID} STREQUAL "Clang")
   set(LIBCUDACXX_WARNING_LEVEL "--compiler-options=-Wall --compiler-options=-Wextra")