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guix/gnu/packages/patches/cling-use-shared-library.patch
Maxim Cournoyer 5f818705b4
gnu: Add cling. 
* gnu/packages/cpp.scm (cling): New variable.
(llvm-cling): New private variable.
(clang-cling): Likewise.
* gnu/packages/patches/cling-use-shared-library.patch: New patch.
* gnu/local.mk (dist_patch_DATA): Register it.
2021-11-11 12:18:25 -05:00

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From 811f0a575231496318b5e9c9a0ff0ed195b16dc0 Mon Sep 17 00:00:00 2001
From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Date: Tue, 7 Sep 2021 16:35:07 -0400
Subject: [PATCH] build: Allow building Cling using the Clang shared library.
The officially supported way to build LLVM/Clang as a shared library
is via the LLVM_BUILD_LLVM_DYLIB and LLVM_LINK_LLVM_DYLIB CMake
options (see: https://llvm.org/docs/BuildingADistribution.html). When
built this way, the whole of Clang API is exposed as a shared
library (libclang-cpp.so).
* CMakeLists.txt: Query if we're in shared mode via llvm-config, and
register the result as LLVM_LIB_IS_SHARED.
[LLVM_LIB_IS_SHARED] <target_link_libraries>: Use the PUBLIC interface of the
LLVM shared library.
* lib/Interpreter/CMakeLists.txt [LLVM_LIB_IS_SHARED]: When defined, replace the
individual Clang components by clang-cpp.
* lib/MetaProcessor/CMakeLists.txt: Likewise.
* lib/Utils/CMakeLists.txt: Likewise.
* tools/Jupyter/CMakeLists.txt: Likewise.
* tools/driver/CMakeLists.txt: Likewise.
* tools/libcling/CMakeLists.txt: Likewise.
---
CMakeLists.txt | 10 ++++++--
lib/Interpreter/CMakeLists.txt | 40 ++++++++++++++++++--------------
lib/MetaProcessor/CMakeLists.txt | 16 +++++++++----
lib/Utils/CMakeLists.txt | 34 +++++++++++++++------------
tools/Jupyter/CMakeLists.txt | 11 ++++++++-
tools/driver/CMakeLists.txt | 16 +++----------
tools/libcling/CMakeLists.txt | 38 +++++++++++++++---------------
7 files changed, 93 insertions(+), 72 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 65b14b27..888f7ee9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,6 +23,7 @@ if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
"--libdir"
"--includedir"
"--prefix"
+ "--shared-mode"
"--src-root")
execute_process(
COMMAND ${CONFIG_COMMAND}
@@ -47,7 +48,8 @@ if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
list(GET CONFIG_OUTPUT 2 LIBRARY_DIR)
list(GET CONFIG_OUTPUT 3 INCLUDE_DIR)
list(GET CONFIG_OUTPUT 4 LLVM_OBJ_ROOT)
- list(GET CONFIG_OUTPUT 5 MAIN_SRC_DIR)
+ list(GET CONFIG_OUTPUT 5 LLVM_LIB_IS_SHARED)
+ list(GET CONFIG_OUTPUT 6 MAIN_SRC_DIR)
if(NOT MSVC_IDE)
set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS}
@@ -427,7 +429,11 @@ macro(add_cling_library name)
endif()
if(TARGET ${name})
- target_link_libraries(${name} INTERFACE ${LLVM_COMMON_LIBS})
+ if(LLVM_LIB_IS_SHARED)
+ target_link_libraries(${name} PUBLIC LLVM)
+ else()
+ target_link_libraries(${name} INTERFACE ${LLVM_COMMON_LIBS})
+ endif()
if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "libcling")
install(TARGETS ${name}
diff --git a/lib/Interpreter/CMakeLists.txt b/lib/Interpreter/CMakeLists.txt
index 921c773c..af65c020 100644
--- a/lib/Interpreter/CMakeLists.txt
+++ b/lib/Interpreter/CMakeLists.txt
@@ -6,22 +6,28 @@
# LICENSE.TXT for details.
#------------------------------------------------------------------------------
-set(LIBS
- clingUtils
- clangCodeGen
- clangDriver
- clangFrontend
- clangParse
- clangSema
- clangAnalysis
- clangEdit
- clangRewrite
- clangRewriteFrontend
- clangSerialization
- clangAST
- clangBasic
- clangLex
-)
+if (LLVM_LIB_IS_SHARED)
+ set(LIBS
+ clang-cpp
+ clingUtils)
+else()
+ set(LIBS
+ clingUtils
+ clangCodeGen
+ clangDriver
+ clangFrontend
+ clangParse
+ clangSema
+ clangAnalysis
+ clangEdit
+ clangRewrite
+ clangRewriteFrontend
+ clangSerialization
+ clangAST
+ clangBasic
+ clangLex
+ )
+endif()
set(LLVM_LINK_COMPONENTS
analysis
@@ -369,4 +375,4 @@ if ((NOT builtin_llvm) AND builtin_clang)
get_property(P SOURCE TransactionUnloader.cpp PROPERTY INCLUDE_DIRECTORIES)
list(INSERT P 0 ${FixInclude})
set_property(SOURCE TransactionUnloader.cpp PROPERTY INCLUDE_DIRECTORIES "${P}")
-endif()
\ No newline at end of file
+endif()
diff --git a/lib/MetaProcessor/CMakeLists.txt b/lib/MetaProcessor/CMakeLists.txt
index e753dca3..5f4641bb 100644
--- a/lib/MetaProcessor/CMakeLists.txt
+++ b/lib/MetaProcessor/CMakeLists.txt
@@ -10,7 +10,16 @@ set( LLVM_LINK_COMPONENTS
core
support
binaryformat
-)
+ )
+
+if (LLVM_LIB_IS_SHARED)
+ set(LIBS clang-cpp)
+else()
+ set(LIBS
+ clangLex
+ clangAST
+ clangBasic)
+endif()
add_cling_library(clingMetaProcessor OBJECT
Display.cpp
@@ -21,10 +30,7 @@ add_cling_library(clingMetaProcessor OBJECT
MetaSema.cpp
LINK_LIBS
- clangLex
- clangAST
- clangBasic
-
+ ${LIBS}
clingInterpreter
clingUtils
)
diff --git a/lib/Utils/CMakeLists.txt b/lib/Utils/CMakeLists.txt
index 327c9fff..fbe4bd87 100644
--- a/lib/Utils/CMakeLists.txt
+++ b/lib/Utils/CMakeLists.txt
@@ -26,21 +26,25 @@ set(LLVM_LINK_COMPONENTS
${LLVM_TARGETS_TO_BUILD}
)
-set(LIBS
- clangCodeGen
- clangDriver
- clangFrontend
- clangParse
- clangSema
- clangAnalysis
- clangEdit
- clangRewrite
- clangRewriteFrontend
- clangSerialization
- clangAST
- clangBasic
- clangLex
-)
+if (LLVM_LIB_IS_SHARED)
+ set(LIBS clang-cpp)
+else()
+ set(LIBS
+ clangCodeGen
+ clangDriver
+ clangFrontend
+ clangParse
+ clangSema
+ clangAnalysis
+ clangEdit
+ clangRewrite
+ clangRewriteFrontend
+ clangSerialization
+ clangAST
+ clangBasic
+ clangLex
+ )
+endif()
find_library(DL_LIBRARY_PATH dl)
if (DL_LIBRARY_PATH)
diff --git a/tools/Jupyter/CMakeLists.txt b/tools/Jupyter/CMakeLists.txt
index aad5f3f7..8b4ac36f 100644
--- a/tools/Jupyter/CMakeLists.txt
+++ b/tools/Jupyter/CMakeLists.txt
@@ -39,6 +39,14 @@ else()
endif()
endif()
+if (LLVM_LIB_IS_SHARED)
+ set(LIBS
+ clang-cpp
+ clingUserInterface
+ clingMetaProcessor
+ ${INTERPRETER}
+ clingUtils)
+else()
set(LIBS
clangAST
clangBasic
@@ -54,7 +62,8 @@ set(LIBS
clingMetaProcessor
${INTERPRETER}
clingUtils
- )
+ )
+endif()
if( LLVM_ENABLE_PIC )
set(ENABLE_SHARED SHARED)
diff --git a/tools/driver/CMakeLists.txt b/tools/driver/CMakeLists.txt
index 1968b97f..5ed53fb7 100644
--- a/tools/driver/CMakeLists.txt
+++ b/tools/driver/CMakeLists.txt
@@ -9,23 +9,13 @@
# Keep symbols for JIT resolution
set(LLVM_NO_DEAD_STRIP 1)
-if(BUILD_SHARED_LIBS)
- set(LIBS
- LLVMSupport
-
- clangFrontendTool
-
- clingInterpreter
- clingMetaProcessor
- clingUserInterface
- clingUtils
- )
+if(LLVM_LIB_IS_SHARED)
+ set(LIBS clang-cpp clingUserInterface)
add_cling_executable(cling
cling.cpp
)
else()
set(LIBS
- LLVMSupport
clangASTMatchers
clangFrontendTool
@@ -38,7 +28,7 @@ else()
$<TARGET_OBJECTS:obj.clingMetaProcessor>
$<TARGET_OBJECTS:obj.clingUtils>
)
-endif(BUILD_SHARED_LIBS)
+endif(LLVM_LIB_IS_SHARED)
set_target_properties(cling
PROPERTIES ENABLE_EXPORTS 1)
diff --git a/tools/libcling/CMakeLists.txt b/tools/libcling/CMakeLists.txt
index 143d3bdb..ba000d44 100644
--- a/tools/libcling/CMakeLists.txt
+++ b/tools/libcling/CMakeLists.txt
@@ -10,21 +10,25 @@ set(SOURCES
ADDITIONAL_HEADERS
)
-set(LIBS
- clangAnalysis
- clangDriver
- clangFrontend
- clangParse
- clangSema
- clangAST
- clangLex
- clangSerialization
- clangCodeGen
- clangBasic
- clangEdit
-
- clingUtils
-)
+if (LLVM_LIB_IS_SHARED)
+ set(LIBS clang-cpp)
+else()
+ set(LIBS
+ clangAnalysis
+ clangDriver
+ clangFrontend
+ clangParse
+ clangSema
+ clangAST
+ clangLex
+ clangSerialization
+ clangCodeGen
+ clangBasic
+ clangEdit
+
+ clingUtils
+ )
+endif()
set( LLVM_LINK_COMPONENTS
analysis
@@ -63,10 +67,6 @@ option(LIBCLING_BUILD_STATIC
# set(LLVM_EXPORTED_SYMBOL_FILE)
#endif()
-if( LLVM_ENABLE_PIC )
- set(ENABLE_SHARED SHARED)
-endif()
-
if((NOT LLVM_ENABLE_PIC OR LIBCLING_BUILD_STATIC) AND NOT WIN32)
set(ENABLE_STATIC STATIC)
endif()
--
2.33.0
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