Support of lldb on Kfreebsd

Summary: Patch by Pino Toscano. Reported in http://bugs.debian.org/835665

Reviewers: tfiala, emaste

Subscribers: beanz, mgorny, emaste, krytarowski, brucem, tberghammer, danalbert, srhines, #lldb

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D23977

llvm-svn: 290044

lldb/cmake/LLDBDependencies.cmake

@@ -161,10 +161,7 @@ if (NOT HAVE_CXX_ATOMICS64_WITHOUT_LIB )
     list(APPEND LLDB_SYSTEM_LIBS atomic)
 endif()
 
-# On FreeBSD/NetBSD backtrace() is provided by libexecinfo, not libc.
-if (CMAKE_SYSTEM_NAME MATCHES "FreeBSD" OR CMAKE_SYSTEM_NAME MATCHES "NetBSD")
-  list(APPEND LLDB_SYSTEM_LIBS execinfo)
-endif()
+list(APPEND LLDB_SYSTEM_LIBS ${Backtrace_LIBRARY})
 
 if (NOT LLDB_DISABLE_PYTHON AND NOT LLVM_BUILD_STATIC)
   list(APPEND LLDB_SYSTEM_LIBS ${PYTHON_LIBRARIES})

lldb/cmake/modules/LLDBConfig.cmake

@@ -416,3 +416,5 @@ endif()
 if(LLDB_USE_BUILTIN_DEMANGLER)
     add_definitions(-DLLDB_USE_BUILTIN_DEMANGLER)
 endif()
+
+find_package(Backtrace)

lldb/scripts/Python/modules/CMakeLists.txt

@@ -6,6 +6,6 @@ if (CXX_SUPPORTS_NO_MACRO_REDEFINED)
 endif ()
 
 # build the Python readline suppression module only on Linux
-if (CMAKE_SYSTEM_NAME MATCHES "Linux")
+​if (CMAKE_SYSTEM_NAME MATCHES "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "GNU" OR CMAKE_SYSTEM_NAME STREQUAL "kFreeBSD")
    add_subdirectory(readline)
 endif()

lldb/scripts/utilsOsType.py

@@ -36,6 +36,7 @@ if sys.version_info.major >= 3:
         Linux = 3
         NetBSD = 4
         Windows = 5
+        kFreeBSD = 6
 else:
     class EnumOsType(object):
         values = ["Unknown",
@@ -43,7 +44,8 @@ else:
                   "FreeBSD",
                   "Linux",
                   "NetBSD",
-                  "Windows"]
+                  "Windows",
+                  "kFreeBSD"]
 
         class __metaclass__(type):
             #++----------------------------------------------------------------
@@ -91,5 +93,7 @@ def determine_os_type():
         eOSType = EnumOsType.NetBSD
     elif strOS == "win32":
         eOSType = EnumOsType.Windows
+    elif strOS.startswith("gnukfreebsd"):
+        eOSType = EnumOsType.kFreeBSD
 
     return eOSType