Add python2 port

1 files changed, 234 insertions, 0 deletions

diff --git a/ports/python2/003-build-msvc.patch b/ports/python2/003-build-msvc.patch
new file mode 100644
index 000000000..71d5569f5
--- /dev/null
+++ b/ports/python2/003-build-msvc.patch
@@ -0,0 +1,234 @@
+From 00164b4a9821e82f513183035587bea9243a7d5e Mon Sep 17 00:00:00 2001
+From: Jean-Christophe Fillion-Robin <jchris.fillionr@kitware.com>
+Date: Tue, 1 Aug 2017 14:13:24 -0400
+Subject: [PATCH 3/3] VS2015 Support: Backport of "Issue #23524: Replace
+ _PyVerify_fd function with calling
+ _set_thread_local_invalid_parameter_handler on every thread."
+
+This commit is a partial backport of python/cpython@d81431f. It was
+originally designed to work with python-cmake-buildsystem.
+
+Implementation of "_PyVerify_fd" in "Python/fileutils.c" found only in
+Python 3.x has been copied into "Modules/posixmodule.c"
+
+The following modules have NOT been backported:
+
+* PCbuild
+---
+ Modules/posixmodule.c              | 54 +++++++++++++++++++++++-------------------
+ PC/invalid_parameter_handler.c     | 22 +++++++++++++++++
+ Python/pystate.c                   | 12 ++++++++++
+ PCbuild/pythoncore.vcxproj         | 1  +
+ PCbuild/pythoncore.vcxproj.filters | 1  +
+ 5 files changed, 65 insertions(+), 26 deletions(-)
+ create mode 100644 PC/invalid_parameter_handler.c
+
+diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
+index 90d5318..6a180a0 100644
+--- a/Modules/posixmodule.c
++++ b/Modules/posixmodule.c
+@@ -277,6 +277,7 @@ extern int lstat(const char *, struct stat *);
+ #include "osdefs.h"
+ #include <malloc.h>
+ #include <windows.h>
++#include <malloc.h>
+ #include <shellapi.h>   /* for ShellExecute() */
+ #define popen   _popen
+ #define pclose  _pclose
+@@ -535,8 +534,28 @@ _PyInt_FromDev(PY_LONG_LONG v)
+ #  define _PyInt_FromDev PyInt_FromLong
+ #endif
+ 
++#ifdef _MSC_VER
++#if _MSC_VER >= 1900
++
++/* This function lets the Windows CRT validate the file handle without
++   terminating the process if it's invalid. */
++int
++_PyVerify_fd(int fd)
++{
++    intptr_t osh;
++    /* Fast check for the only condition we know */
++    if (fd < 0) {
++        _set_errno(EBADF);
++        return 0;
++    }
++    osh = _get_osfhandle(fd);
++    return osh != (intptr_t)-1;
++}
++
++#define _PyVerify_fd_dup2(fd1, fd2) (_PyVerify_fd(fd1) && (fd2) >= 0)
++
++#elif _MSC_VER >= 1400
+ 
+-#if defined _MSC_VER && _MSC_VER >= 1400
+ /* Microsoft CRT in VS2005 and higher will verify that a filehandle is
+  * valid and raise an assertion if it isn't.
+  * Normally, an invalid fd is likely to be a C program error and therefore
+@@ -601,35 +580,18 @@ _PyInt_FromDev(PY_LONG_LONG v)
+  * Only the first items must be present.
+  */
+ 
+-#if _MSC_VER >= 1900
+-
+-typedef struct {
+-    CRITICAL_SECTION lock;
+-    intptr_t osfhnd;
+-    __int64 startpos;
+-    char osfile;
+-} my_ioinfo;
+-
+-#define IOINFO_L2E 6
+-#define IOINFO_ARRAYS 128
+-
+-#else
+-
+ typedef struct {
+     intptr_t osfhnd;
+     char osfile;
+ } my_ioinfo;
+ 
+-#define IOINFO_L2E 5
+-#define IOINFO_ARRAYS 64
+-
+-#endif
+-
+ extern __declspec(dllimport) char * __pioinfo[];
+ #define IOINFO_ARRAY_ELTS   (1 << IOINFO_L2E)
+ #define _NHANDLE_           (IOINFO_ARRAYS * IOINFO_ARRAY_ELTS)
+ #define FOPEN 0x01
+ #define _NO_CONSOLE_FILENO (intptr_t)-2
++#define IOINFO_L2E 5
++#define IOINFO_ARRAYS 64
+ 
+ /* This function emulates what the windows CRT does to validate file handles */
+ int
+@@ -653,6 +649,8 @@ _PyVerify_fd_dup2(int fd1, int fd2)
+ #define _PyVerify_fd_dup2(A, B) (1)
+ #endif
+ 
++#endif /* defined _MSC_VER */
++
+ /* Return a dictionary corresponding to the POSIX environment table */
+ #if defined(WITH_NEXT_FRAMEWORK) || (defined(__APPLE__) && defined(Py_ENABLE_SHARED))
+ /* On Darwin/MacOSX a shared library or framework has no access to
+@@ -1260,14 +1254,10 @@ win32_fstat(int file_number, struct win32_stat *result)
+ 
+     h = (HANDLE)_get_osfhandle(file_number);
+ 
+-    /* Protocol violation: we explicitly clear errno, instead of
+-       setting it to a POSIX error. Callers should use GetLastError. */
+     errno = 0;
+ 
+     if (h == INVALID_HANDLE_VALUE) {
+-        /* This is really a C library error (invalid file handle).
+-           We set the Win32 error to the closes one matching. */
+-        SetLastError(ERROR_INVALID_HANDLE);
++        errno = EBADF;
+         return -1;
+     }
+     memset(result, 0, sizeof(*result));
+@@ -1268,6 +1266,7 @@ win32_fstat(int file_number, struct win32_stat *result)
+     if (type == FILE_TYPE_UNKNOWN) {
+         DWORD error = GetLastError();
+         if (error != 0) {
++        errno = EINVAL;
+         return -1;
+         }
+         /* else: valid but unknown file */
+@@ -1284,6 +1281,7 @@ win32_fstat(int file_number, struct win32_stat *result)
+     }
+ 
+     if (!GetFileInformationByHandle(h, &info)) {
++        errno = EINVAL;
+         return -1;
+     }
+ 
+diff --git a/PC/invalid_parameter_handler.c b/PC/invalid_parameter_handler.c
+new file mode 100644
+index 0000000..3bc0104
+--- /dev/null
++++ b/PC/invalid_parameter_handler.c
+@@ -0,0 +1,22 @@
++#ifdef _MSC_VER
++
++#include <stdlib.h>
++
++#if _MSC_VER >= 1900
++/* pyconfig.h uses this function in the _Py_BEGIN/END_SUPPRESS_IPH
++ * macros. It does not need to be defined when building using MSVC
++ * earlier than 14.0 (_MSC_VER == 1900).
++ */
++
++static void __cdecl _silent_invalid_parameter_handler(
++    wchar_t const* expression,
++    wchar_t const* function,
++    wchar_t const* file,
++    unsigned int line,
++    uintptr_t pReserved) { }
++
++void *_Py_silent_invalid_parameter_handler =
++    (void*)_silent_invalid_parameter_handler;
++#endif
++
++#endif
+diff --git a/Python/pystate.c b/Python/pystate.c
+index eb992c1..1c0f970 100644
+--- a/Python/pystate.c
++++ b/Python/pystate.c
+@@ -22,6 +22,12 @@ the expense of doing their own locking).
+ #endif
+ #endif
+ 
++#if defined _MSC_VER && _MSC_VER >= 1900
++/* Issue #23524: Temporary fix to disable termination due to invalid parameters */
++PyAPI_DATA(void*) _Py_silent_invalid_parameter_handler;
++#include <stdlib.h>
++#endif
++
+ #ifdef __cplusplus
+ extern "C" {
+ #endif
+@@ -202,6 +208,12 @@ new_threadstate(PyInterpreterState *interp, int init)
+         tstate->next = interp->tstate_head;
+         interp->tstate_head = tstate;
+         HEAD_UNLOCK();
++
++#if defined _MSC_VER && _MSC_VER >= 1900
++        /* Issue #23524: Temporary fix to disable termination due to invalid parameters */
++        _set_thread_local_invalid_parameter_handler((_invalid_parameter_handler)_Py_silent_invalid_parameter_handler);
++#endif
++
+     }
+ 
+     return tstate;
+-- 
+2.5.0
+
+diff --git a/PCbuild/pythoncore.vcxproj b/PCbuild/pythoncore.vcxproj
+index 99291ea..af17762 100644
+--- a/PCbuild/pythoncore.vcxproj
++++ b/PCbuild/pythoncore.vcxproj
+@@ -333,6 +333,7 @@
+     <ClCompile Include="..\Parser\parser.c" />
+     <ClCompile Include="..\Parser\parsetok.c" />
+     <ClCompile Include="..\Parser\tokenizer.c" />
++    <ClCompile Include="..\PC\invalid_parameter_handler.c" />
+     <ClCompile Include="..\PC\_subprocess.c" />
+     <ClCompile Include="..\PC\_winreg.c" />
+     <ClCompile Include="..\PC\config.c" />
+
+diff --git a/PCbuild/pythoncore.vcxproj.filters b/PCbuild/pythoncore.vcxproj.filters
+index 99291ea..af17762 100644
+--- a/PCbuild/pythoncore.vcxproj.filters
++++ b/PCbuild/pythoncore.vcxproj.filters
+@@ -794,6 +794,9 @@
+     <ClCompile Include="..\Parser\tokenizer.c">
+       <Filter>Parser</Filter>
+     </ClCompile>
++    <ClCompile Include="..\PC\invalid_parameter_handler.c">
++      <Filter>PC</Filter>
++    </ClCompile>
+     <ClCompile Include="..\PC\_subprocess.c">
+       <Filter>PC</Filter>
+     </ClCompile>