Add initial boilerplate for CIndex, a shared library that will vend high-level

source symbol information (harvested by Clang) through a C API.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80166 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang-c/Index.h

+/*===-- clang-c/Index.h - Indexing Public C Interface -------------*- C -*-===*\
+|*                                                                            *|
+|*                     The LLVM Compiler Infrastructure                       *|
+|*                                                                            *|
+|* This file is distributed under the University of Illinois Open Source      *|
+|* License. See LICENSE.TXT for details.                                      *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* This header provides a public inferface to a Clang library for extracting  *|
+|* high-level symbol information from source files without exposing the full  *|
+|* Clang C++ API.                                                             *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#ifndef CLANG_C_INDEX_H
+#define CLANG_C_INDEX_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Dummy function that serves as an entrance to the library.
+ * To be replaced with specific functions.
+ */
+void clang_index_dummy(void);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+

tools/CIndex/CIndex.cpp

+//===- CIndex.cpp - Clang-C Source Indexing Library -----------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Clang-C Source Indexing library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang-c/Index.h"
+
+void clang_index_dummy(void) {}
+

tools/CIndex/CIndex.exports

+_clang_index_dummy

tools/CIndex/Makefile

+##===- tools/CIndex/Makefile -------------------------------*- Makefile -*-===##
+# 
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+# 
+##===----------------------------------------------------------------------===##
+
+LEVEL = ../../../..
+LIBRARYNAME = CIndex
+
+CPPFLAGS += -I$(PROJ_SRC_DIR)/../../include -I$(PROJ_OBJ_DIR)/../../include
+CXXFLAGS = -fno-rtti
+
+# Include this here so we can get the configuration of the targets
+# that have been configured for construction. We have to do this 
+# early so we can set up LINK_COMPONENTS before including Makefile.rules
+include $(LEVEL)/Makefile.config
+
+LINK_LIBS_IN_SHARED = 1
+SHARED_LIBRARY = 1
+
+LINK_COMPONENTS := bitreader
+USEDLIBS = clangIndex.a clangAST.a clangLex.a clangBasic.a 
+
+include $(LEVEL)/Makefile.common
+
+##===----------------------------------------------------------------------===##
+# FIXME: This is copied from the 'lto' makefile.  Should we share this?
+##===----------------------------------------------------------------------===##
+
+ifeq ($(HOST_OS),Darwin)
+    # set dylib internal version number to llvmCore submission number
+    ifdef LLVM_SUBMIT_VERSION
+        LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
+                        -Wl,$(LLVM_SUBMIT_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
+                        -Wl,-compatibility_version -Wl,1
+    endif
+    # extra options to override libtool defaults 
+    LLVMLibsOptions    := $(LLVMLibsOptions)  \
+                         -avoid-version \
+                         -Wl,-exported_symbols_list -Wl,$(PROJ_SRC_DIR)/CIndex.exports \
+                         -Wl,-dead_strip \
+                         -Wl,-seg1addr -Wl,0xE0000000 
+
+    # Mac OS X 10.4 and earlier tools do not allow a second -install_name on command line
+    DARWIN_VERS := $(shell echo $(TARGET_TRIPLE) | sed 's/.*darwin\([0-9]*\).*/\1/')
+    ifneq ($(DARWIN_VERS),8)
+       LLVMLibsOptions    := $(LLVMLibsOptions)  \
+                            -no-undefined -Wl,-install_name \
+                            -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"
+    endif
+endif

tools/Makefile

@@ -8,6 +8,6 @@
 ##===----------------------------------------------------------------------===##
 
 LEVEL := ../../..
-DIRS := clang-cc driver index-test wpa
+DIRS := clang-cc driver index-test wpa CIndex 
 
 include $(LEVEL)/Makefile.common