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1 | |
2 | # HG changeset patch | |
3 | # User Victor Stinner <victor.stinner@gmail.com> | |
4 | # Date 1442581594 -7200 | |
5 | # Node ID d4fcb362f7c66b25b22ddc0d27db0cc96acc727b | |
6 | # Parent d04a0954e142f873adee88ec5bc1c1d81cd46bc4 | |
7 | Issue #25150: Hide the private _Py_atomic_xxx symbols from the public | |
8 | Python.h header to fix a compilation error with OpenMP. PyThreadState_GET() | |
9 | becomes an alias to PyThreadState_Get() to avoid ABI incompatibilies. | |
10 | ||
11 | It is important that the _PyThreadState_Current variable is always accessed | |
12 | with the same implementation of pyatomic.h. Use the PyThreadState_Get() | |
13 | function so extension modules will all reuse the same implementation. | |
14 | ||
15 | diff --git a/Include/pyatomic.h b/Include/pyatomic.h | |
16 | --- a/Include/pyatomic.h | |
17 | +++ b/Include/pyatomic.h | |
18 | @@ -1,8 +1,6 @@ | |
19 | -/* Issue #23644: <stdatomic.h> is incompatible with C++, see: | |
20 | - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60932 */ | |
21 | -#if !defined(Py_LIMITED_API) && !defined(__cplusplus) | |
22 | #ifndef Py_ATOMIC_H | |
23 | #define Py_ATOMIC_H | |
24 | +#ifdef Py_BUILD_CORE | |
25 | ||
26 | #include "dynamic_annotations.h" | |
27 | ||
28 | @@ -248,5 +246,5 @@ static __inline__ void | |
29 | #define _Py_atomic_load_relaxed(ATOMIC_VAL) \ | |
30 | _Py_atomic_load_explicit(ATOMIC_VAL, _Py_memory_order_relaxed) | |
31 | ||
32 | +#endif /* Py_BUILD_CORE */ | |
33 | #endif /* Py_ATOMIC_H */ | |
34 | -#endif /* Py_LIMITED_API */ | |
35 | diff --git a/Include/pystate.h b/Include/pystate.h | |
36 | --- a/Include/pystate.h | |
37 | +++ b/Include/pystate.h | |
38 | @@ -177,20 +177,13 @@ PyAPI_FUNC(int) PyThreadState_SetAsyncEx | |
39 | /* Variable and macro for in-line access to current thread state */ | |
40 | ||
41 | /* Assuming the current thread holds the GIL, this is the | |
42 | - PyThreadState for the current thread. | |
43 | - | |
44 | - Issue #23644: pyatomic.h is incompatible with C++ (yet). Disable | |
45 | - PyThreadState_GET() optimization: declare it as an alias to | |
46 | - PyThreadState_Get(), as done for limited API. */ | |
47 | -#if !defined(Py_LIMITED_API) && !defined(__cplusplus) | |
48 | + PyThreadState for the current thread. */ | |
49 | +#ifdef Py_BUILD_CORE | |
50 | PyAPI_DATA(_Py_atomic_address) _PyThreadState_Current; | |
51 | -#endif | |
52 | - | |
53 | -#if defined(Py_DEBUG) || defined(Py_LIMITED_API) || defined(__cplusplus) | |
54 | -#define PyThreadState_GET() PyThreadState_Get() | |
55 | +# define PyThreadState_GET() \ | |
56 | + ((PyThreadState*)_Py_atomic_load_relaxed(&_PyThreadState_Current)) | |
57 | #else | |
58 | -#define PyThreadState_GET() \ | |
59 | - ((PyThreadState*)_Py_atomic_load_relaxed(&_PyThreadState_Current)) | |
60 | +# define PyThreadState_GET() PyThreadState_Get() | |
61 | #endif | |
62 | ||
63 | typedef | |
64 | diff --git a/Misc/NEWS b/Misc/NEWS | |
65 | --- a/Misc/NEWS | |
66 | +++ b/Misc/NEWS | |
67 | @@ -11,6 +11,10 @@ Release date: TBA | |
68 | Core and Builtins | |
69 | ----------------- | |
70 | ||
71 | +- Issue #25150: Hide the private _Py_atomic_xxx symbols from the public | |
72 | + Python.h header to fix a compilation error with OpenMP. PyThreadState_GET() | |
73 | + becomes an alias to PyThreadState_Get() to avoid ABI incompatibilies. | |
74 | + | |
75 | Library | |
76 | ------- | |
77 | ||
78 |