From f71c288c6d853e623461f97cd72e6a9e6541f61a Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@openadk.org>
Date: Tue, 1 Nov 2016 09:25:30 +0100
Subject: [PATCH 1/4] Bug#714923: opencv FTBFS on sparc64
 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=714923

opencv uses functions from <ext/atomicity.h>, but it wrongly assumes
this functions apply to an int type. While it is true for some
architectures, some architectures are using a long type there. The
correct type to use is _Atomic_word.

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
[Samuel Martin: convert to git diff]
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
---
 modules/core/include/opencv2/core/core.hpp       | 10 +++++-----
 modules/core/include/opencv2/core/gpumat.hpp     |  2 +-
 modules/core/include/opencv2/core/operations.hpp |  4 ++--
 modules/core/src/gpumat.cpp                      |  2 +-
 modules/core/src/matrix.cpp                      |  4 ++--
 modules/core/src/system.cpp                      |  8 ++++----
 modules/gpu/include/opencv2/gpu/gpu.hpp          |  2 +-
 modules/ocl/include/opencv2/ocl/ocl.hpp          |  2 +-
 modules/ocl/src/matrix_operations.cpp            |  2 +-
 modules/python/src2/cv2.cpp                      |  8 ++++----
 10 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/modules/core/include/opencv2/core/core.hpp b/modules/core/include/opencv2/core/core.hpp
index 591d50a..5b4261e 100644
--- a/modules/core/include/opencv2/core/core.hpp
+++ b/modules/core/include/opencv2/core/core.hpp
@@ -1290,7 +1290,7 @@ public:
     operator const _Tp*() const;
 
     _Tp* obj; //< the object pointer.
-    int* refcount; //< the associated reference counter
+    _Atomic_word* refcount; //< the associated reference counter
 };
 
 template<typename T>
@@ -1490,9 +1490,9 @@ class CV_EXPORTS MatAllocator
 public:
     MatAllocator() {}
     virtual ~MatAllocator() {}
-    virtual void allocate(int dims, const int* sizes, int type, int*& refcount,
+    virtual void allocate(int dims, const int* sizes, int type, _Atomic_word*& refcount,
                           uchar*& datastart, uchar*& data, size_t* step) = 0;
-    virtual void deallocate(int* refcount, uchar* datastart, uchar* data) = 0;
+    virtual void deallocate(_Atomic_word* refcount, uchar* datastart, uchar* data) = 0;
 };
 
 /*!
@@ -1985,7 +1985,7 @@ public:
 
     //! pointer to the reference counter;
     // when matrix points to user-allocated data, the pointer is NULL
-    int* refcount;
+    _Atomic_word* refcount;
 
     //! helper fields used in locateROI and adjustROI
     uchar* datastart;
@@ -3449,7 +3449,7 @@ public:
     {
         Hdr(int _dims, const int* _sizes, int _type);
         void clear();
-        int refcount;
+        _Atomic_word refcount;
         int dims;
         int valueOffset;
         size_t nodeSize;
diff --git a/modules/core/include/opencv2/core/gpumat.hpp b/modules/core/include/opencv2/core/gpumat.hpp
index 68647d9..d488c27 100644
--- a/modules/core/include/opencv2/core/gpumat.hpp
+++ b/modules/core/include/opencv2/core/gpumat.hpp
@@ -301,7 +301,7 @@ namespace cv { namespace gpu
 
         //! pointer to the reference counter;
         // when GpuMatrix points to user-allocated data, the pointer is NULL
-        int* refcount;
+        _Atomic_word* refcount;
 
         //! helper fields used in locateROI and adjustROI
         uchar* datastart;
diff --git a/modules/core/include/opencv2/core/operations.hpp b/modules/core/include/opencv2/core/operations.hpp
index 0ae51c6..a455502 100644
--- a/modules/core/include/opencv2/core/operations.hpp
+++ b/modules/core/include/opencv2/core/operations.hpp
@@ -2589,7 +2589,7 @@ template<typename _Tp> inline Ptr<_Tp>::Ptr(_Tp* _obj) : obj(_obj)
 {
     if(obj)
     {
-        refcount = (int*)fastMalloc(sizeof(*refcount));
+        refcount = (_Atomic_word*)fastMalloc(sizeof(*refcount));
         *refcount = 1;
     }
     else
@@ -2628,7 +2628,7 @@ template<typename _Tp> inline Ptr<_Tp>& Ptr<_Tp>::operator = (const Ptr<_Tp>& _p
 {
     if (this != &_ptr)
     {
-      int* _refcount = _ptr.refcount;
+      _Atomic_word* _refcount = _ptr.refcount;
       if( _refcount )
           CV_XADD(_refcount, 1);
       release();
diff --git a/modules/core/src/gpumat.cpp b/modules/core/src/gpumat.cpp
index 9669191..0bd2568 100644
--- a/modules/core/src/gpumat.cpp
+++ b/modules/core/src/gpumat.cpp
@@ -716,7 +716,7 @@ void cv::gpu::GpuMat::create(int _rows, int _cols, int _type)
         datastart = data = static_cast<uchar*>(devPtr);
         dataend = data + nettosize;
 
-        refcount = static_cast<int*>(fastMalloc(sizeof(*refcount)));
+        refcount = static_cast<_Atomic_word*>(fastMalloc(sizeof(*refcount)));
         *refcount = 1;
     }
 }
diff --git a/modules/core/src/matrix.cpp b/modules/core/src/matrix.cpp
index 57abffc..7b840a0 100644
--- a/modules/core/src/matrix.cpp
+++ b/modules/core/src/matrix.cpp
@@ -213,7 +213,7 @@ void Mat::create(int d, const int* _sizes, int _type)
         {
             size_t totalsize = alignSize(step.p[0]*size.p[0], (int)sizeof(*refcount));
             data = datastart = (uchar*)fastMalloc(totalsize + (int)sizeof(*refcount));
-            refcount = (int*)(data + totalsize);
+            refcount = (_Atomic_word*)(data + totalsize);
             *refcount = 1;
         }
         else
@@ -228,7 +228,7 @@ void Mat::create(int d, const int* _sizes, int _type)
                 allocator = 0;
                 size_t totalSize = alignSize(step.p[0]*size.p[0], (int)sizeof(*refcount));
                 data = datastart = (uchar*)fastMalloc(totalSize + (int)sizeof(*refcount));
-                refcount = (int*)(data + totalSize);
+                refcount = (_Atomic_word*)(data + totalSize);
                 *refcount = 1;
             }
 #else
diff --git a/modules/core/src/system.cpp b/modules/core/src/system.cpp
index f5a1af2..9a7b262 100644
--- a/modules/core/src/system.cpp
+++ b/modules/core/src/system.cpp
@@ -892,7 +892,7 @@ struct Mutex::Impl
     void unlock() { LeaveCriticalSection(&cs); }
 
     CRITICAL_SECTION cs;
-    int refcount;
+    _Atomic_word refcount;
 };
 
 #ifndef __GNUC__
@@ -920,7 +920,7 @@ struct Mutex::Impl
     void unlock() { OSSpinLockUnlock(&sl); }
 
     OSSpinLock sl;
-    int refcount;
+    _Atomic_word refcount;
 };
 
 #elif defined __linux__ && !defined ANDROID && !defined __LINUXTHREADS_OLD__
@@ -935,7 +935,7 @@ struct Mutex::Impl
     void unlock() { pthread_spin_unlock(&sl); }
 
     pthread_spinlock_t sl;
-    int refcount;
+    _Atomic_word refcount;
 };
 
 #else
@@ -950,7 +950,7 @@ struct Mutex::Impl
     void unlock() { pthread_mutex_unlock(&sl); }
 
     pthread_mutex_t sl;
-    int refcount;
+    _Atomic_word refcount;
 };
 
 #endif
diff --git a/modules/gpu/include/opencv2/gpu/gpu.hpp b/modules/gpu/include/opencv2/gpu/gpu.hpp
index de16982..266fa2f 100644
--- a/modules/gpu/include/opencv2/gpu/gpu.hpp
+++ b/modules/gpu/include/opencv2/gpu/gpu.hpp
@@ -125,7 +125,7 @@ public:
     size_t step;
 
     uchar* data;
-    int* refcount;
+    _Atomic_word* refcount;
 
     uchar* datastart;
     uchar* dataend;
diff --git a/modules/ocl/include/opencv2/ocl/ocl.hpp b/modules/ocl/include/opencv2/ocl/ocl.hpp
index e8eb3e8..5ea05fc 100644
--- a/modules/ocl/include/opencv2/ocl/ocl.hpp
+++ b/modules/ocl/include/opencv2/ocl/ocl.hpp
@@ -404,7 +404,7 @@ namespace cv
 
             //! pointer to the reference counter;
             // when oclMatrix points to user-allocated data, the pointer is NULL
-            int *refcount;
+            _Atomic_word *refcount;
 
             //! helper fields used in locateROI and adjustROI
             //datastart and dataend are not used in current version
diff --git a/modules/ocl/src/matrix_operations.cpp b/modules/ocl/src/matrix_operations.cpp
index 331e432..c61dca4 100644
--- a/modules/ocl/src/matrix_operations.cpp
+++ b/modules/ocl/src/matrix_operations.cpp
@@ -591,7 +591,7 @@ void cv::ocl::oclMat::createEx(int _rows, int _cols, int _type, DevMemRW rw_type
         datastart = data = (uchar *)dev_ptr;
         dataend = data + nettosize;
 
-        refcount = (int *)fastMalloc(sizeof(*refcount));
+        refcount = (_Atomic_word *)fastMalloc(sizeof(*refcount));
         *refcount = 1;
     }
 }
diff --git a/modules/python/src2/cv2.cpp b/modules/python/src2/cv2.cpp
index 04cea39..40e5d43 100644
--- a/modules/python/src2/cv2.cpp
+++ b/modules/python/src2/cv2.cpp
@@ -157,12 +157,12 @@ static PyObject* failmsgp(const char *fmt, ...)
 static size_t REFCOUNT_OFFSET = (size_t)&(((PyObject*)0)->ob_refcnt) +
     (0x12345678 != *(const size_t*)"\x78\x56\x34\x12\0\0\0\0\0")*sizeof(int);
 
-static inline PyObject* pyObjectFromRefcount(const int* refcount)
+static inline PyObject* pyObjectFromRefcount(const _Atomic_word* refcount)
 {
     return (PyObject*)((size_t)refcount - REFCOUNT_OFFSET);
 }
 
-static inline int* refcountFromPyObject(const PyObject* obj)
+static inline _Atomic_word* refcountFromPyObject(const PyObject* obj)
 {
     return (int*)((size_t)obj + REFCOUNT_OFFSET);
 }
@@ -173,7 +173,7 @@ public:
     NumpyAllocator() {}
     ~NumpyAllocator() {}
 
-    void allocate(int dims, const int* sizes, int type, int*& refcount,
+    void allocate(int dims, const int* sizes, int type, _Atomic_word*& refcount,
                   uchar*& datastart, uchar*& data, size_t* step)
     {
         PyEnsureGIL gil;
@@ -206,7 +206,7 @@ public:
         datastart = data = (uchar*)PyArray_DATA((PyArrayObject*) o);
     }
 
-    void deallocate(int* refcount, uchar*, uchar*)
+    void deallocate(_Atomic_word* refcount, uchar*, uchar*)
     {
         PyEnsureGIL gil;
         if( !refcount )
-- 
2.10.2