<rdar://problem/14515139>

Add a GetFoundationVersion() to AppleObjCRuntime
This API is used to return and cache the major version of Foundation.framework, which is potentially a useful piece of data to key off of to enable or disable certain ObjC related behaviors (especially in data formatters)

llvm-svn: 204756

1 files changed, 26 insertions, 0 deletions

diff --git a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.cpp b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.cpp
index 2d2e4058159..2c8f3489d81 100644
--- a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.cpp
+++ b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.cpp
@@ -251,6 +251,32 @@ AppleObjCRuntime::AppleIsModuleObjCLibrary (const ModuleSP &module_sp)
     return false;
 }
 
+// we use the version of Foundation to make assumptions about the ObjC runtime on a target
+uint32_t
+AppleObjCRuntime::GetFoundationVersion ()
+{
+    if (!m_Foundation_major.hasValue())
+    {
+        const ModuleList& modules = m_process->GetTarget().GetImages();
+        uint32_t major = UINT32_MAX;
+        for (uint32_t idx = 0; idx < modules.GetSize(); idx++)
+        {
+            lldb::ModuleSP module_sp = modules.GetModuleAtIndex(idx);
+            if (!module_sp)
+                continue;
+            if (strcmp(module_sp->GetFileSpec().GetFilename().AsCString(""),"Foundation") == 0)
+            {
+                module_sp->GetVersion(&major,1);
+                m_Foundation_major = major;
+                return major;
+            }
+        }
+        return LLDB_INVALID_MODULE_VERSION;
+    }
+    else
+        return m_Foundation_major.getValue();
+}
+
 bool
 AppleObjCRuntime::IsModuleObjCLibrary (const ModuleSP &module_sp)
 {