Revert "Add implicit null and stack checks for x86"

It breaks cross compilation with x86_64.

This reverts commit 34e826ccc80dc1cf7c4c045de6b7f8360d504ccf.

Change-Id: I34ba07821fc0a022fda33a7ae21850957bbec5e7

2 files changed, 0 insertions, 29 deletions

diff --git a/sigchainlib/Android.mk b/sigchainlib/Android.mk
index 20c8cac..8e25339 100644
--- a/sigchainlib/Android.mk
+++ b/sigchainlib/Android.mk
@@ -28,16 +28,3 @@ LOCAL_SHARED_LIBRARIES := liblog libdl
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 LOCAL_ADDITIONAL_DEPENDENCIES += art/build/Android.common_build.mk
 include $(BUILD_SHARED_LIBRARY)
-
-# Build host library.
-include $(CLEAR_VARS)
-LOCAL_CPP_EXTENSION := $(ART_CPP_EXTENSION)
-LOCAL_MODULE_TAGS := optional
-LOCAL_IS_HOST_MODULE := true
-LOCAL_CFLAGS += $(ART_HOST_CFLAGS)
-LOCAL_SRC_FILES := sigchain.cc
-LOCAL_MODULE:= libsigchain
-LOCAL_ADDITIONAL_DEPENDENCIES += $(LOCAL_PATH)/Android.mk
-LOCAL_LDLIBS = -ldl
-LOCAL_MULTILIB := both
-include $(BUILD_HOST_SHARED_LIBRARY)
diff --git a/sigchainlib/sigchain.cc b/sigchainlib/sigchain.cc
index 73cc9eb..26e7d31 100644
--- a/sigchainlib/sigchain.cc
+++ b/sigchainlib/sigchain.cc
@@ -14,13 +14,7 @@
  * limitations under the License.
  */
 
-#ifdef HAVE_ANDROID_OS
 #include <android/log.h>
-#else
-#include <stdarg.h>
-#include <iostream>
-#endif
-
 #include <dlfcn.h>
 #include <signal.h>
 #include <stdio.h>
@@ -73,11 +67,7 @@ static void log(const char* format, ...) {
   va_list ap;
   va_start(ap, format);
   vsnprintf(buf, sizeof(buf), format, ap);
-#ifdef HAVE_ANDROID_OS
   __android_log_write(ANDROID_LOG_ERROR, "libsigchain", buf);
-#else
-  std::cout << buf << "\n";
-#endif
   va_end(ap);
 }
 
@@ -119,16 +109,10 @@ void InvokeUserSignalHandler(int sig, siginfo_t* info, void* context) {
   if ((action.sa_flags & SA_SIGINFO) == 0) {
     if (action.sa_handler != NULL) {
       action.sa_handler(sig);
-    } else {
-       signal(sig, SIG_DFL);
-       raise(sig);
     }
   } else {
     if (action.sa_sigaction != NULL) {
       action.sa_sigaction(sig, info, context);
-    } else {
-       signal(sig, SIG_DFL);
-       raise(sig);
     }
   }
 }