chromeos-base/nnapi/files/00004-libfmq-page-size.patch

diff --git a/platform2/aosp/system/libfmq/include/fmq/MessageQueueBase.h b/platform2/aosp/system/libfmq/include/fmq/MessageQueueBase.h
index 0cb83a6..0df8104 100644
--- a/platform2/aosp/system/libfmq/include/fmq/MessageQueueBase.h
+++ b/platform2/aosp/system/libfmq/include/fmq/MessageQueueBase.h
@@ -19,6 +19,7 @@
 #include <cutils/ashmem.h>
 #include <fmq/EventFlag.h>
 #include <sys/mman.h>
+#include <unistd.h>
 #include <utils/Log.h>
 #include <utils/SystemClock.h>
 #include <atomic>
@@ -231,6 +232,10 @@ struct MessageQueueBase {
     struct MemRegion {
         MemRegion() : MemRegion(nullptr, 0) {}
 
+        MemRegion(const MemRegion& other) {
+            *this = other;
+        }
+
         MemRegion(T* base, size_t size) : address(base), length(size) {}
 
         MemRegion& operator=(const MemRegion& other) {
@@ -576,7 +581,9 @@ void MessageQueueBase<MQDescriptorType, T, flavor>::initMemory(bool resetPointer
     const auto& grantors = mDesc->grantors();
     for (const auto& grantor : grantors) {
         if (hardware::details::isAlignedToWordBoundary(grantor.offset) == false) {
+#ifdef __BIONIC__
             __assert(__FILE__, __LINE__, "Grantor offsets need to be aligned");
+#endif
         }
     }
 
@@ -661,9 +668,10 @@ MessageQueueBase<MQDescriptorType, T, flavor>::MessageQueueBase(size_t numElemen
      * kQueueSizeBytes needs to be aligned to word boundary so that all offsets
      * in the grantorDescriptor will be word aligned.
      */
+    size_t page_size = static_cast<size_t>(sysconf(_SC_PAGE_SIZE));
     size_t kAshmemSizePageAligned = (hardware::details::alignToWordBoundary(kQueueSizeBytes) +
-                                     kMetaDataSize + PAGE_SIZE - 1) &
-                                    ~(PAGE_SIZE - 1);
+                                     kMetaDataSize + page_size - 1) &
+                                    ~(page_size - 1);
 
     /*
      * Create an ashmem region to map the memory for the ringbuffer,
@@ -1172,7 +1180,8 @@ void* MessageQueueBase<MQDescriptorType, T, flavor>::mapGrantorDescr(uint32_t gr
     /*
      * Offset for mmap must be a multiple of PAGE_SIZE.
      */
-    int mapOffset = (grantors[grantorIdx].offset / PAGE_SIZE) * PAGE_SIZE;
+    size_t page_size = static_cast<size_t>(sysconf(_SC_PAGE_SIZE));
+    int mapOffset = (grantors[grantorIdx].offset / page_size) * page_size;
     int mapLength = grantors[grantorIdx].offset - mapOffset + grantors[grantorIdx].extent;
 
     void* address = mmap(0, mapLength, PROT_READ | PROT_WRITE, MAP_SHARED, handle->data[fdIndex],
@@ -1192,7 +1201,8 @@ void MessageQueueBase<MQDescriptorType, T, flavor>::unmapGrantorDescr(void* addr
         return;
     }
 
-    int mapOffset = (grantors[grantorIdx].offset / PAGE_SIZE) * PAGE_SIZE;
+    size_t page_size = static_cast<size_t>(sysconf(_SC_PAGE_SIZE));
+    int mapOffset = (grantors[grantorIdx].offset / page_size) * page_size;
     int mapLength = grantors[grantorIdx].offset - mapOffset + grantors[grantorIdx].extent;
     void* baseAddress =
             reinterpret_cast<uint8_t*>(address) - (grantors[grantorIdx].offset - mapOffset);