81 lines
3.4 KiB
Diff
81 lines
3.4 KiB
Diff
From a809720102fae8d1b5a7073f99f9dae9395c5f41 Mon Sep 17 00:00:00 2001
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From: Alex Langford <alangford@apple.com>
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Date: Tue, 25 Jul 2023 15:38:04 -0700
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Subject: [PATCH] [lldb][NFCI] Change logic to find clang resource dir in
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standalone builds
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As of 0beffb854209a41f31beb18f9631258349a99299 there is a CMake
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function to actually calculate the relative path to the clang resource
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directory. Currently we have some bespoke logic that looks in a few
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places, but with this new function we should be able to eliminate some
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complexity here.
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Also, I moved the functionality from LLDBConfig to LLDBStandalone since
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it is only used in standalone builds.
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Differential Revision: https://reviews.llvm.org/D156270
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---
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lldb/cmake/modules/LLDBConfig.cmake | 24 ------------------------
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lldb/cmake/modules/LLDBStandalone.cmake | 13 +++++++++++++
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2 files changed, 13 insertions(+), 24 deletions(-)
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diff --git a/lldb/cmake/modules/LLDBConfig.cmake b/lldb/cmake/modules/LLDBConfig.cmake
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index 1393342dd5cb..ce90ecabc6a5 100644
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--- a/lldb/cmake/modules/LLDBConfig.cmake
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+++ b/lldb/cmake/modules/LLDBConfig.cmake
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@@ -282,30 +282,6 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
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endif()
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endif()
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-
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-# If LLDB is building against a prebuilt Clang, then the Clang resource
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-# directory that LLDB is using for its embedded Clang instance needs to point
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-# to the resource directory of the used Clang installation.
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-if (NOT TARGET clang-resource-headers)
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- set(LLDB_CLANG_RESOURCE_DIR_NAME "${LLVM_VERSION_MAJOR}")
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- # Iterate over the possible places where the external resource directory
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- # could be and pick the first that exists.
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- foreach(CANDIDATE "${Clang_DIR}/../.." "${LLVM_DIR}" "${LLVM_LIBRARY_DIRS}"
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- "${LLVM_BUILD_LIBRARY_DIR}"
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- "${LLVM_LIBRARY_DIR}")
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- # Build the resource directory path by appending 'clang/<version number>'.
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- set(CANDIDATE_RESOURCE_DIR "${CANDIDATE}/clang/${LLDB_CLANG_RESOURCE_DIR_NAME}")
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- if (IS_DIRECTORY "${CANDIDATE_RESOURCE_DIR}")
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- set(LLDB_EXTERNAL_CLANG_RESOURCE_DIR "${CANDIDATE_RESOURCE_DIR}")
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- break()
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- endif()
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- endforeach()
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-
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- if (NOT LLDB_EXTERNAL_CLANG_RESOURCE_DIR)
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- message(FATAL_ERROR "Expected directory for clang-resource headers not found: ${LLDB_EXTERNAL_CLANG_RESOURCE_DIR}")
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- endif()
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-endif()
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-
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# Find Apple-specific libraries or frameworks that may be needed.
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if (APPLE)
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if(NOT APPLE_EMBEDDED)
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diff --git a/lldb/cmake/modules/LLDBStandalone.cmake b/lldb/cmake/modules/LLDBStandalone.cmake
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index e9bcabcb63de..fd16716d7141 100644
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--- a/lldb/cmake/modules/LLDBStandalone.cmake
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+++ b/lldb/cmake/modules/LLDBStandalone.cmake
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@@ -128,3 +128,16 @@ endif()
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
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set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
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set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
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+
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+# If LLDB is building against a prebuilt Clang, then the Clang resource
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+# directory that LLDB is using for its embedded Clang instance needs to point to
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+# the resource directory of the used Clang installation.
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+if (NOT TARGET clang-resource-headers)
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+ include(GetClangResourceDir)
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+ get_clang_resource_dir(LLDB_EXTERNAL_CLANG_RESOURCE_DIR
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+ PREFIX "${Clang_DIR}/../../../")
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+
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+ if (NOT EXISTS ${LLDB_EXTERNAL_CLANG_RESOURCE_DIR})
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+ message(FATAL_ERROR "Expected directory for clang-resource-headers not found: ${LLDB_EXTERNAL_CLANG_RESOURCE_DIR}")
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+ endif()
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+endif()
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--
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2.41.0
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