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