[ovs-dev] [PATCH 1/2] sparse: Fix sparse when compiling DPDK.

[Ethan Jackson]

Sparse doesn't like several of the DPDK header files.  This patch
works around it so we can get analysis when compiling DPDK.

Signed-off-by: Ethan Jackson <ethan at nicira.com>
---
 include/sparse/automake.mk  |  4 ++++
 include/sparse/emmintrin.h  | 21 +++++++++++++++++++++
 include/sparse/rte_atomic.h | 25 +++++++++++++++++++++++++
 include/sparse/rte_lcore.h  | 23 +++++++++++++++++++++++
 include/sparse/rte_vect.h   | 23 +++++++++++++++++++++++
 5 files changed, 96 insertions(+)
 create mode 100644 include/sparse/emmintrin.h
 create mode 100644 include/sparse/rte_atomic.h
 create mode 100644 include/sparse/rte_lcore.h
 create mode 100644 include/sparse/rte_vect.h

diff --git a/include/sparse/automake.mk b/include/sparse/automake.mk
index 572c7c2..c80c4c2 100644
--- a/include/sparse/automake.mk
+++ b/include/sparse/automake.mk
@@ -1,10 +1,14 @@
 noinst_HEADERS += \
         include/sparse/arpa/inet.h \
         include/sparse/assert.h \
+        include/sparse/emmintrin.h \
         include/sparse/math.h \
         include/sparse/netinet/in.h \
         include/sparse/netinet/ip6.h \
         include/sparse/netpacket/packet.h \
         include/sparse/pthread.h \
+        include/sparse/rte_atomic.h \
+        include/sparse/rte_lcore.h \
+        include/sparse/rte_vect.h \
         include/sparse/sys/socket.h \
         include/sparse/sys/wait.h
diff --git a/include/sparse/emmintrin.h b/include/sparse/emmintrin.h
new file mode 100644
index 0000000..7c788dc
--- /dev/null
+++ b/include/sparse/emmintrin.h
@@ -0,0 +1,21 @@
+/* Copyright (c) 2015 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CHECKER__
+#error "Use this header only with sparse.  It is not a correct implementation."
+#endif
+
+/* Sparse doesn't support SSE2 so the "real" header file quits with an error.
+ * Instead, we simply do nothing thereby surpressing the message. */
diff --git a/include/sparse/rte_atomic.h b/include/sparse/rte_atomic.h
new file mode 100644
index 0000000..ae49fe5
--- /dev/null
+++ b/include/sparse/rte_atomic.h
@@ -0,0 +1,25 @@
+/* Copyright (c) 2015 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CHECKER__
+#error "Use this header only with sparse.  It is not a correct implementation."
+#endif
+
+/* Fix sparse technicality about types in one of the function calls by just
+ * ignoring it. */
+#define __sync_add_and_fetch(a, b) (0)
+
+/* Get actual <rte_atomic.h> definitions for us to annotate and build on. */
+#include_next <rte_atomic.h>
diff --git a/include/sparse/rte_lcore.h b/include/sparse/rte_lcore.h
new file mode 100644
index 0000000..584bfe1
--- /dev/null
+++ b/include/sparse/rte_lcore.h
@@ -0,0 +1,23 @@
+/* Copyright (c) 2015 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CHECKER__
+#error "Use this header only with sparse.  It is not a correct implementation."
+#endif
+
+typedef int rte_cpuset_t;
+
+/* Get actual <rte_lcore.h> definitions for us to annotate and build on. */
+#include_next <rte_lcore.h>
diff --git a/include/sparse/rte_vect.h b/include/sparse/rte_vect.h
new file mode 100644
index 0000000..6f6625b
--- /dev/null
+++ b/include/sparse/rte_vect.h
@@ -0,0 +1,23 @@
+/* Copyright (c) 2015 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CHECKER__
+#error "Use this header only with sparse.  It is not a correct implementation."
+#endif
+
+typedef int __m128i;
+
+/* Get actual <rte_vect.h> definitions for us to annotate and build on. */
+#include_next <rte_vect.h>
-- 
1.9.1