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Add evil hack to workaround the missing libdl.a in the Android toolchain.

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Reviewers: vharron, ovyalov

Subscribers: tberghammer, danalbert, srhines, lldb-commits

Differential Revision: http://reviews.llvm.org/D11321

llvm-svn: 242599
This commit is contained in:
Chaoren Lin 2015-07-18 01:09:43 +00:00
parent e9bbabcc69
commit 857a43c70a
1 changed files with 19 additions and 0 deletions
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19
lldb/cmake/platforms/Android.cmake
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@ -119,6 +119,25 @@ endif()
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fdata-sections -ffunction-sections" )
set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--gc-sections" )
################# BEGIN EVIL HACK ##################
# lldb-server links against libdl even though it's not being used and
# libdl.a is currently missing from the toolchain (b.android.com/178517).
# Therefore, in order to statically link lldb-server, we need a temporary
# workaround. This creates a dummy libdl.a stub until the actual
# libdl.a can be implemented in the toolchain.
set( ANDROID_LIBDL_STUB "${CMAKE_BINARY_DIR}/libdl_stub" )
file( MAKE_DIRECTORY ${ANDROID_LIBDL_STUB} )
file( WRITE "${ANDROID_LIBDL_STUB}/libdl.c" "
#include <dlfcn.h>
void * dlopen (const char *filename, int flag) { return 0; }
const char * dlerror (void) { return 0; }
void * dlsym (void *handle, const char *symbol) { return 0; }
int dlclose (void *handle) { return 0; }")
execute_process( COMMAND ${CMAKE_C_COMPILER} -c ${ANDROID_LIBDL_STUB}/libdl.c -o ${ANDROID_LIBDL_STUB}/libdl.o )
execute_process( COMMAND ${CMAKE_AR} rcs ${ANDROID_LIBDL_STUB}/libdl.a ${ANDROID_LIBDL_STUB}/libdl.o )
set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -L${ANDROID_LIBDL_STUB}" )
################# END EVIL HACK ##################
# cache flags
set( CMAKE_CXX_FLAGS "" CACHE STRING "c++ flags" )
set( CMAKE_C_FLAGS "" CACHE STRING "c flags" )