diff options
| -rw-r--r-- | var/spack/repos/builtin/packages/python/gcc-8-2.7.14.patch | 35 | ||||
| -rw-r--r-- | var/spack/repos/builtin/packages/python/package.py | 4 |
2 files changed, 39 insertions, 0 deletions
diff --git a/var/spack/repos/builtin/packages/python/gcc-8-2.7.14.patch b/var/spack/repos/builtin/packages/python/gcc-8-2.7.14.patch new file mode 100644 index 0000000000..72c879cdea --- /dev/null +++ b/var/spack/repos/builtin/packages/python/gcc-8-2.7.14.patch @@ -0,0 +1,35 @@ +diff --git a/Include/objimpl.h b/Include/objimpl.h +index 5f2868332955..cbf6bc3f8763 100644 +--- a/Include/objimpl.h ++++ b/Include/objimpl.h +@@ -248,6 +248,20 @@ PyAPI_FUNC(PyVarObject *) _PyObject_GC_Resize(PyVarObject *, Py_ssize_t); + /* for source compatibility with 2.2 */ + #define _PyObject_GC_Del PyObject_GC_Del + ++/* ++ * Former over-aligned definition of PyGC_Head, used to compute the size of the ++ * padding for the new version below. ++ */ ++union _gc_head; ++union _gc_head_old { ++ struct { ++ union _gc_head_old *gc_next; ++ union _gc_head_old *gc_prev; ++ Py_ssize_t gc_refs; ++ } gc; ++ long double dummy; ++}; ++ + /* GC information is stored BEFORE the object structure. */ + typedef union _gc_head { + struct { +@@ -255,7 +269,8 @@ typedef union _gc_head { + union _gc_head *gc_prev; + Py_ssize_t gc_refs; + } gc; +- long double dummy; /* force worst-case alignment */ ++ double dummy; /* Force at least 8-byte alignment. */ ++ char dummy_padding[sizeof(union _gc_head_old)]; + } PyGC_Head; + + extern PyGC_Head *_PyGC_generation0; diff --git a/var/spack/repos/builtin/packages/python/package.py b/var/spack/repos/builtin/packages/python/package.py index 5b8c7e94e3..ac42ffa547 100644 --- a/var/spack/repos/builtin/packages/python/package.py +++ b/var/spack/repos/builtin/packages/python/package.py @@ -118,6 +118,10 @@ class Python(AutotoolsPackage): patch('cray-rpath-2.3.patch', when="@2.3:3.0.1 platform=cray") patch('cray-rpath-3.1.patch', when="@3.1:3.99 platform=cray") + # Fixes an alignment problem with more aggressive optimization in gcc8 + # https://github.com/python/cpython/commit/0b91f8a668201fc58fa732b8acc496caedfdbae0 + patch('gcc-8-2.7.14.patch', when="@2.7.14 %gcc@8:") + # For more information refer to this bug report: # https://bugs.python.org/issue29712 conflicts( |