mirror of https://github.com/python/cpython
merge 3.5 (#28184)
This commit is contained in:
commit
e2e792d98f
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@ -45,10 +45,10 @@ extern "C" {
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* Define macros for handling SIGFPE.
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* Define macros for handling SIGFPE.
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* Lee Busby, LLNL, November, 1996
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* Lee Busby, LLNL, November, 1996
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* busby1@llnl.gov
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* busby1@llnl.gov
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*
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*
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*********************************************
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*********************************************
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* Overview of the system for handling SIGFPE:
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* Overview of the system for handling SIGFPE:
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*
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*
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* This file (Include/pyfpe.h) defines a couple of "wrapper" macros for
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* This file (Include/pyfpe.h) defines a couple of "wrapper" macros for
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* insertion into your Python C code of choice. Their proper use is
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* insertion into your Python C code of choice. Their proper use is
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* discussed below. The file Python/pyfpe.c defines a pair of global
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* discussed below. The file Python/pyfpe.c defines a pair of global
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@ -59,33 +59,33 @@ extern "C" {
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* named fpectl. This module is standard in every respect. It can be loaded
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* named fpectl. This module is standard in every respect. It can be loaded
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* either statically or dynamically as you choose, and like any other
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* either statically or dynamically as you choose, and like any other
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* Python module, has no effect until you import it.
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* Python module, has no effect until you import it.
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*
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*
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* In the general case, there are three steps toward handling SIGFPE in any
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* In the general case, there are three steps toward handling SIGFPE in any
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* Python code:
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* Python code:
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*
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*
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* 1) Add the *_PROTECT macros to your C code as required to protect
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* 1) Add the *_PROTECT macros to your C code as required to protect
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* dangerous floating point sections.
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* dangerous floating point sections.
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*
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*
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* 2) Turn on the inclusion of the code by adding the ``--with-fpectl''
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* 2) Turn on the inclusion of the code by adding the ``--with-fpectl''
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* flag at the time you run configure. If the fpectl or other modules
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* flag at the time you run configure. If the fpectl or other modules
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* which use the *_PROTECT macros are to be dynamically loaded, be
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* which use the *_PROTECT macros are to be dynamically loaded, be
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* sure they are compiled with WANT_SIGFPE_HANDLER defined.
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* sure they are compiled with WANT_SIGFPE_HANDLER defined.
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*
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*
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* 3) When python is built and running, import fpectl, and execute
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* 3) When python is built and running, import fpectl, and execute
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* fpectl.turnon_sigfpe(). This sets up the signal handler and enables
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* fpectl.turnon_sigfpe(). This sets up the signal handler and enables
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* generation of SIGFPE whenever an exception occurs. From this point
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* generation of SIGFPE whenever an exception occurs. From this point
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* on, any properly trapped SIGFPE should result in the Python
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* on, any properly trapped SIGFPE should result in the Python
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* FloatingPointError exception.
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* FloatingPointError exception.
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*
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*
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* Step 1 has been done already for the Python kernel code, and should be
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* Step 1 has been done already for the Python kernel code, and should be
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* done soon for the NumPy array package. Step 2 is usually done once at
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* done soon for the NumPy array package. Step 2 is usually done once at
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* python install time. Python's behavior with respect to SIGFPE is not
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* python install time. Python's behavior with respect to SIGFPE is not
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* changed unless you also do step 3. Thus you can control this new
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* changed unless you also do step 3. Thus you can control this new
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* facility at compile time, or run time, or both.
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* facility at compile time, or run time, or both.
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*
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*
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********************************
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********************************
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* Using the macros in your code:
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* Using the macros in your code:
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*
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*
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* static PyObject *foobar(PyObject *self,PyObject *args)
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* static PyObject *foobar(PyObject *self,PyObject *args)
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* {
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* {
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* ....
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* ....
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@ -94,17 +94,17 @@ extern "C" {
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* PyFPE_END_PROTECT(result)
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* PyFPE_END_PROTECT(result)
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* ....
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* ....
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* }
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* }
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*
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*
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* If a floating point error occurs in dangerous_op, foobar returns 0 (NULL),
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* If a floating point error occurs in dangerous_op, foobar returns 0 (NULL),
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* after setting the associated value of the FloatingPointError exception to
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* after setting the associated value of the FloatingPointError exception to
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* "Error in foobar". ``Dangerous_op'' can be a single operation, or a block
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* "Error in foobar". ``Dangerous_op'' can be a single operation, or a block
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* of code, function calls, or any combination, so long as no alternate
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* of code, function calls, or any combination, so long as no alternate
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* return is possible before the PyFPE_END_PROTECT macro is reached.
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* return is possible before the PyFPE_END_PROTECT macro is reached.
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*
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*
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* The macros can only be used in a function context where an error return
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* The macros can only be used in a function context where an error return
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* can be recognized as signaling a Python exception. (Generally, most
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* can be recognized as signaling a Python exception. (Generally, most
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* functions that return a PyObject * will qualify.)
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* functions that return a PyObject * will qualify.)
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*
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*
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* Guido's original design suggestion for PyFPE_START_PROTECT and
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* Guido's original design suggestion for PyFPE_START_PROTECT and
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* PyFPE_END_PROTECT had them open and close a local block, with a locally
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* PyFPE_END_PROTECT had them open and close a local block, with a locally
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* defined jmp_buf and jmp_buf pointer. This would allow recursive nesting
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* defined jmp_buf and jmp_buf pointer. This would allow recursive nesting
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@ -112,17 +112,17 @@ extern "C" {
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* variables need to be declared with the "volatile" type qualifier to keep
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* variables need to be declared with the "volatile" type qualifier to keep
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* setjmp from corrupting their values. Some current implementations seem
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* setjmp from corrupting their values. Some current implementations seem
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* to be more restrictive. For example, the HPUX man page for setjmp says
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* to be more restrictive. For example, the HPUX man page for setjmp says
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*
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*
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* Upon the return from a setjmp() call caused by a longjmp(), the
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* Upon the return from a setjmp() call caused by a longjmp(), the
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* values of any non-static local variables belonging to the routine
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* values of any non-static local variables belonging to the routine
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* from which setjmp() was called are undefined. Code which depends on
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* from which setjmp() was called are undefined. Code which depends on
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* such values is not guaranteed to be portable.
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* such values is not guaranteed to be portable.
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*
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*
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* I therefore decided on a more limited form of nesting, using a counter
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* I therefore decided on a more limited form of nesting, using a counter
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* variable (PyFPE_counter) to keep track of any recursion. If an exception
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* variable (PyFPE_counter) to keep track of any recursion. If an exception
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* occurs in an ``inner'' pair of macros, the return will apparently
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* occurs in an ``inner'' pair of macros, the return will apparently
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* come from the outermost level.
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* come from the outermost level.
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*
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*
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*/
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*/
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#ifdef WANT_SIGFPE_HANDLER
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#ifdef WANT_SIGFPE_HANDLER
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@ -146,14 +146,14 @@ if (!PyFPE_counter++ && setjmp(PyFPE_jbuf)) { \
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* this statement so that it gets executed *before* the unsafe expression
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* this statement so that it gets executed *before* the unsafe expression
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* which we're trying to protect. That pretty well messes things up,
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* which we're trying to protect. That pretty well messes things up,
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* of course.
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* of course.
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*
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*
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* If the expression(s) you're trying to protect don't happen to return a
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* If the expression(s) you're trying to protect don't happen to return a
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* value, you will need to manufacture a dummy result just to preserve the
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* value, you will need to manufacture a dummy result just to preserve the
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* correct ordering of statements. Note that the macro passes the address
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* correct ordering of statements. Note that the macro passes the address
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* of its argument (so you need to give it something which is addressable).
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* of its argument (so you need to give it something which is addressable).
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* If your expression returns multiple results, pass the last such result
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* If your expression returns multiple results, pass the last such result
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* to PyFPE_END_PROTECT.
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* to PyFPE_END_PROTECT.
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*
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*
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* Note that PyFPE_dummy returns a double, which is cast to int.
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* Note that PyFPE_dummy returns a double, which is cast to int.
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* This seeming insanity is to tickle the Floating Point Unit (FPU).
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* This seeming insanity is to tickle the Floating Point Unit (FPU).
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* If an exception has occurred in a preceding floating point operation,
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* If an exception has occurred in a preceding floating point operation,
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@ -747,7 +747,7 @@ extern pid_t forkpty(int *, char *, struct termios *, struct winsize *);
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#define PY_LITTLE_ENDIAN 1
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#define PY_LITTLE_ENDIAN 1
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#endif
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#endif
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#ifdef Py_BUILD_CORE
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#ifdef Py_BUILD_CORE
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/*
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/*
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* Macros to protect CRT calls against instant termination when passed an
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* Macros to protect CRT calls against instant termination when passed an
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* invalid parameter (issue23524).
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* invalid parameter (issue23524).
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@ -139,7 +139,7 @@ static PyObject *
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build_struct_time(int y, int m, int d, int hh, int mm, int ss, int dstflag)
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build_struct_time(int y, int m, int d, int hh, int mm, int ss, int dstflag)
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{
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{
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PyObject *result;
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PyObject *result;
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__coverity_tainted_data_sanitize__(y);
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__coverity_tainted_data_sanitize__(y);
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__coverity_tainted_data_sanitize__(m);
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__coverity_tainted_data_sanitize__(m);
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__coverity_tainted_data_sanitize__(d);
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__coverity_tainted_data_sanitize__(d);
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@ -44,7 +44,7 @@ char _get_console_type(HANDLE handle) {
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if (handle == INVALID_HANDLE_VALUE)
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if (handle == INVALID_HANDLE_VALUE)
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return '\0';
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return '\0';
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if (!GetConsoleMode(handle, &mode))
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if (!GetConsoleMode(handle, &mode))
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return '\0';
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return '\0';
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@ -803,7 +803,7 @@ _io__WindowsConsoleIO_readall_impl(winconsoleio *self)
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bytes_size = WideCharToMultiByte(CP_UTF8, 0, buf, len,
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bytes_size = WideCharToMultiByte(CP_UTF8, 0, buf, len,
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NULL, 0, NULL, NULL);
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NULL, 0, NULL, NULL);
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Py_END_ALLOW_THREADS
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Py_END_ALLOW_THREADS
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if (!bytes_size) {
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if (!bytes_size) {
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DWORD err = GetLastError();
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DWORD err = GetLastError();
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PyMem_Free(buf);
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PyMem_Free(buf);
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@ -854,7 +854,7 @@ _io__WindowsConsoleIO_read_impl(winconsoleio *self, Py_ssize_t size)
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{
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{
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PyObject *bytes;
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PyObject *bytes;
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Py_ssize_t bytes_size;
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Py_ssize_t bytes_size;
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if (self->handle == INVALID_HANDLE_VALUE)
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if (self->handle == INVALID_HANDLE_VALUE)
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return err_closed();
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return err_closed();
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if (!self->readable)
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if (!self->readable)
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@ -929,7 +929,7 @@ _io__WindowsConsoleIO_write_impl(winconsoleio *self, Py_buffer *b)
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wlen = MultiByteToWideChar(CP_UTF8, 0, b->buf, len, NULL, 0);
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wlen = MultiByteToWideChar(CP_UTF8, 0, b->buf, len, NULL, 0);
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}
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}
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Py_END_ALLOW_THREADS
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Py_END_ALLOW_THREADS
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if (!wlen)
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if (!wlen)
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return PyErr_SetFromWindowsErr(0);
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return PyErr_SetFromWindowsErr(0);
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@ -956,7 +956,7 @@ _io__WindowsConsoleIO_write_impl(winconsoleio *self, Py_buffer *b)
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} else
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} else
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res = 0;
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res = 0;
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Py_END_ALLOW_THREADS
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Py_END_ALLOW_THREADS
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if (!res) {
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if (!res) {
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DWORD err = GetLastError();
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DWORD err = GetLastError();
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PyMem_Free(wbuf);
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PyMem_Free(wbuf);
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@ -996,7 +996,7 @@ _io__WindowsConsoleIO_isatty_impl(winconsoleio *self)
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{
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{
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if (self->handle == INVALID_HANDLE_VALUE)
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if (self->handle == INVALID_HANDLE_VALUE)
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return err_closed();
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return err_closed();
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Py_RETURN_TRUE;
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Py_RETURN_TRUE;
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}
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}
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@ -486,7 +486,7 @@ nu_halffloat(const char *p, const formatdef *f)
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return unpack_halffloat(p, 1);
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return unpack_halffloat(p, 1);
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#else
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#else
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return unpack_halffloat(p, 0);
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return unpack_halffloat(p, 0);
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#endif
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#endif
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}
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}
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static PyObject *
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static PyObject *
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@ -26,7 +26,7 @@
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* http://lxr.mozilla.org/seamonkey/source/modules/libimg/png/mozpngconf.h#115
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* http://lxr.mozilla.org/seamonkey/source/modules/libimg/png/mozpngconf.h#115
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*
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*
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* The list of relevant exported symbols can be had with this command:
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* The list of relevant exported symbols can be had with this command:
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*
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*
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nm pyexpat.so \
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nm pyexpat.so \
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| grep -v " [a-zBUA] " \
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| grep -v " [a-zBUA] " \
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| grep -v "_fini\|_init\|initpyexpat"
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| grep -v "_fini\|_init\|initpyexpat"
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@ -172,7 +172,7 @@ _PyOS_WindowsConsoleReadline(HANDLE hStdIn)
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buf = PyMem_RawMalloc(u8len + 1);
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buf = PyMem_RawMalloc(u8len + 1);
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u8len = WideCharToMultiByte(CP_UTF8, 0, wbuf, total_read, buf, u8len, NULL, NULL);
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u8len = WideCharToMultiByte(CP_UTF8, 0, wbuf, total_read, buf, u8len, NULL, NULL);
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buf[u8len] = '\0';
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buf[u8len] = '\0';
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exit:
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exit:
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if (wbuf != wbuf_local)
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if (wbuf != wbuf_local)
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PyMem_RawFree(wbuf);
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PyMem_RawFree(wbuf);
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@ -204,11 +204,11 @@ PyOS_StdioReadline(FILE *sys_stdin, FILE *sys_stdout, const char *prompt)
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#ifdef MS_WINDOWS
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#ifdef MS_WINDOWS
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if (!Py_LegacyWindowsStdioFlag && sys_stdin == stdin) {
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if (!Py_LegacyWindowsStdioFlag && sys_stdin == stdin) {
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HANDLE hStdIn;
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HANDLE hStdIn;
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_Py_BEGIN_SUPPRESS_IPH
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_Py_BEGIN_SUPPRESS_IPH
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hStdIn = (HANDLE)_get_osfhandle(fileno(sys_stdin));
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hStdIn = (HANDLE)_get_osfhandle(fileno(sys_stdin));
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_Py_END_SUPPRESS_IPH
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_Py_END_SUPPRESS_IPH
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if (_get_console_type(hStdIn) == 'r') {
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if (_get_console_type(hStdIn) == 'r') {
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fflush(sys_stdout);
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fflush(sys_stdout);
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if (prompt)
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if (prompt)
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