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Fix #8959 by reverting revision 80761.

This commit is contained in:
Thomas Heller 2010-06-21 14:00:24 +00:00
parent 08982665b7
commit f180099ec6
16 changed files with 1965 additions and 386 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
Lib/ctypes/test/test_win32.py
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@ -6,6 +6,32 @@ import unittest, sys
import _ctypes_test import _ctypes_test
if sys.platform == "win32" and sizeof(c_void_p) == sizeof(c_int):
# Only windows 32-bit has different calling conventions.
class WindowsTestCase(unittest.TestCase):
def test_callconv_1(self):
# Testing stdcall function
IsWindow = windll.user32.IsWindow
# ValueError: Procedure probably called with not enough arguments (4 bytes missing)
self.assertRaises(ValueError, IsWindow)
# This one should succeeed...
self.assertEqual(0, IsWindow(0))
# ValueError: Procedure probably called with too many arguments (8 bytes in excess)
self.assertRaises(ValueError, IsWindow, 0, 0, 0)
def test_callconv_2(self):
# Calling stdcall function as cdecl
IsWindow = cdll.user32.IsWindow
# ValueError: Procedure called with not enough arguments (4 bytes missing)
# or wrong calling convention
self.assertRaises(ValueError, IsWindow, None)
if sys.platform == "win32": if sys.platform == "win32":
class FunctionCallTestCase(unittest.TestCase): class FunctionCallTestCase(unittest.TestCase):

4
Misc/NEWS
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@ -26,6 +26,10 @@ Core and Builtins
Library Library
------- -------
- Issue #8959: fix regression caused by using unmodified libffi
library on Windows. ctypes does now again check the stack before
and after calling foreign functions.
- Issue #8720: fix regression caused by fix for #4050 by making getsourcefile - Issue #8720: fix regression caused by fix for #4050 by making getsourcefile
smart enough to find source files in the linecache. smart enough to find source files in the linecache.

37
Modules/_ctypes/callproc.c
View File

@ -771,6 +771,7 @@ static int _call_function_pointer(int flags,
ffi_cif cif; ffi_cif cif;
int cc; int cc;
#ifdef MS_WIN32 #ifdef MS_WIN32
int delta;
#ifndef DONT_USE_SEH #ifndef DONT_USE_SEH
DWORD dwExceptionCode = 0; DWORD dwExceptionCode = 0;
EXCEPTION_RECORD record; EXCEPTION_RECORD record;
@ -821,6 +822,7 @@ static int _call_function_pointer(int flags,
#ifndef DONT_USE_SEH #ifndef DONT_USE_SEH
__try { __try {
#endif #endif
delta =
#endif #endif
ffi_call(&cif, (void *)pProc, resmem, avalues); ffi_call(&cif, (void *)pProc, resmem, avalues);
#ifdef MS_WIN32 #ifdef MS_WIN32
@ -854,6 +856,35 @@ static int _call_function_pointer(int flags,
return -1; return -1;
} }
#endif #endif
#ifdef MS_WIN64
if (delta != 0) {
PyErr_Format(PyExc_RuntimeError,
"ffi_call failed with code %d",
delta);
return -1;
}
#else
if (delta < 0) {
if (flags & FUNCFLAG_CDECL)
PyErr_Format(PyExc_ValueError,
"Procedure called with not enough "
"arguments (%d bytes missing) "
"or wrong calling convention",
-delta);
else
PyErr_Format(PyExc_ValueError,
"Procedure probably called with not enough "
"arguments (%d bytes missing)",
-delta);
return -1;
} else if (delta > 0) {
PyErr_Format(PyExc_ValueError,
"Procedure probably called with too many "
"arguments (%d bytes in excess)",
delta);
return -1;
}
#endif
#endif #endif
if ((flags & FUNCFLAG_PYTHONAPI) && PyErr_Occurred()) if ((flags & FUNCFLAG_PYTHONAPI) && PyErr_Occurred())
return -1; return -1;
@ -1130,7 +1161,11 @@ PyObject *_ctypes_callproc(PPROC pProc,
} }
for (i = 0; i < argcount; ++i) { for (i = 0; i < argcount; ++i) {
atypes[i] = args[i].ffi_type; atypes[i] = args[i].ffi_type;
if (atypes[i]->type == FFI_TYPE_STRUCT) if (atypes[i]->type == FFI_TYPE_STRUCT
#ifdef _WIN64
&& atypes[i]->size <= sizeof(void *)
#endif
)
avalues[i] = (void *)args[i].value.p; avalues[i] = (void *)args[i].value.p;
else else
avalues[i] = (void *)&args[i].value; avalues[i] = (void *)&args[i].value;

20
Modules/_ctypes/libffi_msvc/LICENSE Normal file
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@ -0,0 +1,20 @@
libffi - Copyright (c) 1996-2003 Red Hat, Inc.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
``Software''), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

500
Modules/_ctypes/libffi_msvc/README Normal file
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@ -0,0 +1,500 @@
This directory contains the libffi package, which is not part of GCC but
shipped with GCC as convenience.
Status
======
libffi-2.00 has not been released yet! This is a development snapshot!
libffi-1.20 was released on October 5, 1998. Check the libffi web
page for updates: <URL:http://sources.redhat.com/libffi/>.
What is libffi?
===============
Compilers for high level languages generate code that follow certain
conventions. These conventions are necessary, in part, for separate
compilation to work. One such convention is the "calling
convention". The "calling convention" is essentially a set of
assumptions made by the compiler about where function arguments will
be found on entry to a function. A "calling convention" also specifies
where the return value for a function is found.
Some programs may not know at the time of compilation what arguments
are to be passed to a function. For instance, an interpreter may be
told at run-time about the number and types of arguments used to call
a given function. Libffi can be used in such programs to provide a
bridge from the interpreter program to compiled code.
The libffi library provides a portable, high level programming
interface to various calling conventions. This allows a programmer to
call any function specified by a call interface description at run
time.
Ffi stands for Foreign Function Interface. A foreign function
interface is the popular name for the interface that allows code
written in one language to call code written in another language. The
libffi library really only provides the lowest, machine dependent
layer of a fully featured foreign function interface. A layer must
exist above libffi that handles type conversions for values passed
between the two languages.
Supported Platforms and Prerequisites
=====================================
Libffi has been ported to:
SunOS 4.1.3 & Solaris 2.x (SPARC-V8, SPARC-V9)
Irix 5.3 & 6.2 (System V/o32 & n32)
Intel x86 - Linux (System V ABI)
Alpha - Linux and OSF/1
m68k - Linux (System V ABI)
PowerPC - Linux (System V ABI, Darwin, AIX)
ARM - Linux (System V ABI)
Libffi has been tested with the egcs 1.0.2 gcc compiler. Chances are
that other versions will work. Libffi has also been built and tested
with the SGI compiler tools.
On PowerPC, the tests failed (see the note below).
You must use GNU make to build libffi. SGI's make will not work.
Sun's probably won't either.
If you port libffi to another platform, please let me know! I assume
that some will be easy (x86 NetBSD), and others will be more difficult
(HP).
Installing libffi
=================
[Note: before actually performing any of these installation steps,
you may wish to read the "Platform Specific Notes" below.]
First you must configure the distribution for your particular
system. Go to the directory you wish to build libffi in and run the
"configure" program found in the root directory of the libffi source
distribution.
You may want to tell configure where to install the libffi library and
header files. To do that, use the --prefix configure switch. Libffi
will install under /usr/local by default.
If you want to enable extra run-time debugging checks use the the
--enable-debug configure switch. This is useful when your program dies
mysteriously while using libffi.
Another useful configure switch is --enable-purify-safety. Using this
will add some extra code which will suppress certain warnings when you
are using Purify with libffi. Only use this switch when using
Purify, as it will slow down the library.
Configure has many other options. Use "configure --help" to see them all.
Once configure has finished, type "make". Note that you must be using
GNU make. SGI's make will not work. Sun's probably won't either.
You can ftp GNU make from prep.ai.mit.edu:/pub/gnu.
To ensure that libffi is working as advertised, type "make test".
To install the library and header files, type "make install".
Using libffi
============
The Basics
----------
Libffi assumes that you have a pointer to the function you wish to
call and that you know the number and types of arguments to pass it,
as well as the return type of the function.
The first thing you must do is create an ffi_cif object that matches
the signature of the function you wish to call. The cif in ffi_cif
stands for Call InterFace. To prepare a call interface object, use the
following function:
ffi_status ffi_prep_cif(ffi_cif *cif, ffi_abi abi,
unsigned int nargs,
ffi_type *rtype, ffi_type **atypes);
CIF is a pointer to the call interface object you wish
to initialize.
ABI is an enum that specifies the calling convention
to use for the call. FFI_DEFAULT_ABI defaults
to the system's native calling convention. Other
ABI's may be used with care. They are system
specific.
NARGS is the number of arguments this function accepts.
libffi does not yet support vararg functions.
RTYPE is a pointer to an ffi_type structure that represents
the return type of the function. Ffi_type objects
describe the types of values. libffi provides
ffi_type objects for many of the native C types:
signed int, unsigned int, signed char, unsigned char,
etc. There is also a pointer ffi_type object and
a void ffi_type. Use &ffi_type_void for functions that
don't return values.
ATYPES is a vector of ffi_type pointers. ARGS must be NARGS long.
If NARGS is 0, this is ignored.
ffi_prep_cif will return a status code that you are responsible
for checking. It will be one of the following:
FFI_OK - All is good.
FFI_BAD_TYPEDEF - One of the ffi_type objects that ffi_prep_cif
came across is bad.
Before making the call, the VALUES vector should be initialized
with pointers to the appropriate argument values.
To call the the function using the initialized ffi_cif, use the
ffi_call function:
void ffi_call(ffi_cif *cif, void *fn, void *rvalue, void **avalues);
CIF is a pointer to the ffi_cif initialized specifically
for this function.
FN is a pointer to the function you want to call.
RVALUE is a pointer to a chunk of memory that is to hold the
result of the function call. Currently, it must be
at least one word in size (except for the n32 version
under Irix 6.x, which must be a pointer to an 8 byte
aligned value (a long long). It must also be at least
word aligned (depending on the return type, and the
system's alignment requirements). If RTYPE is
&ffi_type_void, this is ignored. If RVALUE is NULL,
the return value is discarded.
AVALUES is a vector of void* that point to the memory locations
holding the argument values for a call.
If NARGS is 0, this is ignored.
If you are expecting a return value from FN it will have been stored
at RVALUE.
An Example
----------
Here is a trivial example that calls puts() a few times.
#include <stdio.h>
#include <ffi.h>
int main()
{
ffi_cif cif;
ffi_type *args[1];
void *values[1];
char *s;
int rc;
/* Initialize the argument info vectors */
args[0] = &ffi_type_uint;
values[0] = &s;
/* Initialize the cif */
if (ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
&ffi_type_uint, args) == FFI_OK)
{
s = "Hello World!";
ffi_call(&cif, puts, &rc, values);
/* rc now holds the result of the call to puts */
/* values holds a pointer to the function's arg, so to
call puts() again all we need to do is change the
value of s */
s = "This is cool!";
ffi_call(&cif, puts, &rc, values);
}
return 0;
}
Aggregate Types
---------------
Although libffi has no special support for unions or bit-fields, it is
perfectly happy passing structures back and forth. You must first
describe the structure to libffi by creating a new ffi_type object
for it. Here is the definition of ffi_type:
typedef struct _ffi_type
{
unsigned size;
short alignment;
short type;
struct _ffi_type **elements;
} ffi_type;
All structures must have type set to FFI_TYPE_STRUCT. You may set
size and alignment to 0. These will be calculated and reset to the
appropriate values by ffi_prep_cif().
elements is a NULL terminated array of pointers to ffi_type objects
that describe the type of the structure elements. These may, in turn,
be structure elements.
The following example initializes a ffi_type object representing the
tm struct from Linux's time.h:
struct tm {
int tm_sec;
int tm_min;
int tm_hour;
int tm_mday;
int tm_mon;
int tm_year;
int tm_wday;
int tm_yday;
int tm_isdst;
/* Those are for future use. */
long int __tm_gmtoff__;
__const char *__tm_zone__;
};
{
ffi_type tm_type;
ffi_type *tm_type_elements[12];
int i;
tm_type.size = tm_type.alignment = 0;
tm_type.elements = &tm_type_elements;
for (i = 0; i < 9; i++)
tm_type_elements[i] = &ffi_type_sint;
tm_type_elements[9] = &ffi_type_slong;
tm_type_elements[10] = &ffi_type_pointer;
tm_type_elements[11] = NULL;
/* tm_type can now be used to represent tm argument types and
return types for ffi_prep_cif() */
}
Platform Specific Notes
=======================
Intel x86
---------
There are no known problems with the x86 port.
Sun SPARC - SunOS 4.1.3 & Solaris 2.x
-------------------------------------
You must use GNU Make to build libffi on Sun platforms.
MIPS - Irix 5.3 & 6.x
---------------------
Irix 6.2 and better supports three different calling conventions: o32,
n32 and n64. Currently, libffi only supports both o32 and n32 under
Irix 6.x, but only o32 under Irix 5.3. Libffi will automatically be
configured for whichever calling convention it was built for.
By default, the configure script will try to build libffi with the GNU
development tools. To build libffi with the SGI development tools, set
the environment variable CC to either "cc -32" or "cc -n32" before
running configure under Irix 6.x (depending on whether you want an o32
or n32 library), or just "cc" for Irix 5.3.
With the n32 calling convention, when returning structures smaller
than 16 bytes, be sure to provide an RVALUE that is 8 byte aligned.
Here's one way of forcing this:
double struct_storage[2];
my_small_struct *s = (my_small_struct *) struct_storage;
/* Use s for RVALUE */
If you don't do this you are liable to get spurious bus errors.
"long long" values are not supported yet.
You must use GNU Make to build libffi on SGI platforms.
ARM - System V ABI
------------------
The ARM port was performed on a NetWinder running ARM Linux ELF
(2.0.31) and gcc 2.8.1.
PowerPC System V ABI
--------------------
There are two `System V ABI's which libffi implements for PowerPC.
They differ only in how small structures are returned from functions.
In the FFI_SYSV version, structures that are 8 bytes or smaller are
returned in registers. This is what GCC does when it is configured
for solaris, and is what the System V ABI I have (dated September
1995) says.
In the FFI_GCC_SYSV version, all structures are returned the same way:
by passing a pointer as the first argument to the function. This is
what GCC does when it is configured for linux or a generic sysv
target.
EGCS 1.0.1 (and probably other versions of EGCS/GCC) also has a
inconsistency with the SysV ABI: When a procedure is called with many
floating-point arguments, some of them get put on the stack. They are
all supposed to be stored in double-precision format, even if they are
only single-precision, but EGCS stores single-precision arguments as
single-precision anyway. This causes one test to fail (the `many
arguments' test).
What's With The Crazy Comments?
===============================
You might notice a number of cryptic comments in the code, delimited
by /*@ and @*/. These are annotations read by the program LCLint, a
tool for statically checking C programs. You can read all about it at
<http://larch-www.lcs.mit.edu:8001/larch/lclint/index.html>.
History
=======
1.20 Oct-5-98
Raffaele Sena produces ARM port.
1.19 Oct-5-98
Fixed x86 long double and long long return support.
m68k bug fixes from Andreas Schwab.
Patch for DU assembler compatibility for the Alpha from Richard
Henderson.
1.18 Apr-17-98
Bug fixes and MIPS configuration changes.
1.17 Feb-24-98
Bug fixes and m68k port from Andreas Schwab. PowerPC port from
Geoffrey Keating. Various bug x86, Sparc and MIPS bug fixes.
1.16 Feb-11-98
Richard Henderson produces Alpha port.
1.15 Dec-4-97
Fixed an n32 ABI bug. New libtool, auto* support.
1.14 May-13-97
libtool is now used to generate shared and static libraries.
Fixed a minor portability problem reported by Russ McManus
<mcmanr@eq.gs.com>.
1.13 Dec-2-96
Added --enable-purify-safety to keep Purify from complaining
about certain low level code.
Sparc fix for calling functions with < 6 args.
Linux x86 a.out fix.
1.12 Nov-22-96
Added missing ffi_type_void, needed for supporting void return
types. Fixed test case for non MIPS machines. Cygnus Support
is now Cygnus Solutions.
1.11 Oct-30-96
Added notes about GNU make.
1.10 Oct-29-96
Added configuration fix for non GNU compilers.
1.09 Oct-29-96
Added --enable-debug configure switch. Clean-ups based on LCLint
feedback. ffi_mips.h is always installed. Many configuration
fixes. Fixed ffitest.c for sparc builds.
1.08 Oct-15-96
Fixed n32 problem. Many clean-ups.
1.07 Oct-14-96
Gordon Irlam rewrites v8.S again. Bug fixes.
1.06 Oct-14-96
Gordon Irlam improved the sparc port.
1.05 Oct-14-96
Interface changes based on feedback.
1.04 Oct-11-96
Sparc port complete (modulo struct passing bug).
1.03 Oct-10-96
Passing struct args, and returning struct values works for
all architectures/calling conventions. Expanded tests.
1.02 Oct-9-96
Added SGI n32 support. Fixed bugs in both o32 and Linux support.
Added "make test".
1.01 Oct-8-96
Fixed float passing bug in mips version. Restructured some
of the code. Builds cleanly with SGI tools.
1.00 Oct-7-96
First release. No public announcement.
Authors & Credits
=================
libffi was written by Anthony Green <green@cygnus.com>.
Portions of libffi were derived from Gianni Mariani's free gencall
library for Silicon Graphics machines.
The closure mechanism was designed and implemented by Kresten Krab
Thorup.
The Sparc port was derived from code contributed by the fine folks at
Visible Decisions Inc <http://www.vdi.com>. Further enhancements were
made by Gordon Irlam at Cygnus Solutions <http://www.cygnus.com>.
The Alpha port was written by Richard Henderson at Cygnus Solutions.
Andreas Schwab ported libffi to m68k Linux and provided a number of
bug fixes.
Geoffrey Keating ported libffi to the PowerPC.
Raffaele Sena ported libffi to the ARM.
Jesper Skov and Andrew Haley both did more than their fair share of
stepping through the code and tracking down bugs.
Thanks also to Tom Tromey for bug fixes and configuration help.
Thanks to Jim Blandy, who provided some useful feedback on the libffi
interface.
If you have a problem, or have found a bug, please send a note to
green@cygnus.com.

7
Modules/_ctypes/libffi_msvc/README.ctypes Normal file
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@ -0,0 +1,7 @@
The purpose is to hack the libffi sources so that they can be compiled
with MSVC, and to extend them so that they have the features I need
for ctypes.
I retrieved the libffi sources from the gcc cvs repository on
2004-01-27. Then I did 'configure' in a 'build' subdirectory on a x86
linux system, and copied the files I found useful.

457
Modules/_ctypes/libffi_msvc/ffi.c Normal file
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@ -0,0 +1,457 @@
/* -----------------------------------------------------------------------
ffi.c - Copyright (c) 1996, 1998, 1999, 2001 Red Hat, Inc.
Copyright (c) 2002 Ranjit Mathew
Copyright (c) 2002 Bo Thorsen
Copyright (c) 2002 Roger Sayle
x86 Foreign Function Interface
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
``Software''), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
----------------------------------------------------------------------- */
#include <ffi.h>
#include <ffi_common.h>
#include <stdlib.h>
/* ffi_prep_args is called by the assembly routine once stack space
has been allocated for the function's arguments */
extern void Py_FatalError(const char *msg);
/*@-exportheader@*/
void ffi_prep_args(char *stack, extended_cif *ecif)
/*@=exportheader@*/
{
register unsigned int i;
register void **p_argv;
register char *argp;
register ffi_type **p_arg;
argp = stack;
if (ecif->cif->rtype->type == FFI_TYPE_STRUCT)
{
*(void **) argp = ecif->rvalue;
argp += sizeof(void *);
}
p_argv = ecif->avalue;
for (i = ecif->cif->nargs, p_arg = ecif->cif->arg_types;
i != 0;
i--, p_arg++)
{
size_t z;
/* Align if necessary */
if ((sizeof(void *) - 1) & (size_t) argp)
argp = (char *) ALIGN(argp, sizeof(void *));
z = (*p_arg)->size;
if (z < sizeof(int))
{
z = sizeof(int);
switch ((*p_arg)->type)
{
case FFI_TYPE_SINT8:
*(signed int *) argp = (signed int)*(SINT8 *)(* p_argv);
break;
case FFI_TYPE_UINT8:
*(unsigned int *) argp = (unsigned int)*(UINT8 *)(* p_argv);
break;
case FFI_TYPE_SINT16:
*(signed int *) argp = (signed int)*(SINT16 *)(* p_argv);
break;
case FFI_TYPE_UINT16:
*(unsigned int *) argp = (unsigned int)*(UINT16 *)(* p_argv);
break;
case FFI_TYPE_SINT32:
*(signed int *) argp = (signed int)*(SINT32 *)(* p_argv);
break;
case FFI_TYPE_UINT32:
*(unsigned int *) argp = (unsigned int)*(UINT32 *)(* p_argv);
break;
case FFI_TYPE_STRUCT:
*(unsigned int *) argp = (unsigned int)*(UINT32 *)(* p_argv);
break;
default:
FFI_ASSERT(0);
}
}
else
{
memcpy(argp, *p_argv, z);
}
p_argv++;
argp += z;
}
if (argp - stack > ecif->cif->bytes)
{
Py_FatalError("FFI BUG: not enough stack space for arguments");
}
return;
}
/* Perform machine dependent cif processing */
ffi_status ffi_prep_cif_machdep(ffi_cif *cif)
{
/* Set the return type flag */
switch (cif->rtype->type)
{
case FFI_TYPE_VOID:
case FFI_TYPE_STRUCT:
case FFI_TYPE_SINT64:
case FFI_TYPE_FLOAT:
case FFI_TYPE_DOUBLE:
case FFI_TYPE_LONGDOUBLE:
cif->flags = (unsigned) cif->rtype->type;
break;
case FFI_TYPE_UINT64:
#ifdef _WIN64
case FFI_TYPE_POINTER:
#endif
cif->flags = FFI_TYPE_SINT64;
break;
default:
cif->flags = FFI_TYPE_INT;
break;
}
return FFI_OK;
}
#ifdef _WIN32
extern int
ffi_call_x86(void (*)(char *, extended_cif *),
/*@out@*/ extended_cif *,
unsigned, unsigned,
/*@out@*/ unsigned *,
void (*fn)());
#endif
#ifdef _WIN64
extern int
ffi_call_AMD64(void (*)(char *, extended_cif *),
/*@out@*/ extended_cif *,
unsigned, unsigned,
/*@out@*/ unsigned *,
void (*fn)());
#endif
int
ffi_call(/*@dependent@*/ ffi_cif *cif,
void (*fn)(),
/*@out@*/ void *rvalue,
/*@dependent@*/ void **avalue)
{
extended_cif ecif;
ecif.cif = cif;
ecif.avalue = avalue;
/* If the return value is a struct and we don't have a return */
/* value address then we need to make one */
if ((rvalue == NULL) &&
(cif->rtype->type == FFI_TYPE_STRUCT))
{
/*@-sysunrecog@*/
ecif.rvalue = alloca(cif->rtype->size);
/*@=sysunrecog@*/
}
else
ecif.rvalue = rvalue;
switch (cif->abi)
{
#if !defined(_WIN64)
case FFI_SYSV:
case FFI_STDCALL:
return ffi_call_x86(ffi_prep_args, &ecif, cif->bytes,
cif->flags, ecif.rvalue, fn);
break;
#else
case FFI_SYSV:
/*@-usedef@*/
/* Function call needs at least 40 bytes stack size, on win64 AMD64 */
return ffi_call_AMD64(ffi_prep_args, &ecif, cif->bytes ? cif->bytes : 40,
cif->flags, ecif.rvalue, fn);
/*@=usedef@*/
break;
#endif
default:
FFI_ASSERT(0);
break;
}
return -1; /* theller: Hrm. */
}
/** private members **/
static void ffi_prep_incoming_args_SYSV (char *stack, void **ret,
void** args, ffi_cif* cif);
/* This function is jumped to by the trampoline */
#ifdef _WIN64
void *
#else
static void __fastcall
#endif
ffi_closure_SYSV (ffi_closure *closure, int *argp)
{
// this is our return value storage
long double res;
// our various things...
ffi_cif *cif;
void **arg_area;
unsigned short rtype;
void *resp = (void*)&res;
void *args = &argp[1];
cif = closure->cif;
arg_area = (void**) alloca (cif->nargs * sizeof (void*));
/* this call will initialize ARG_AREA, such that each
* element in that array points to the corresponding
* value on the stack; and if the function returns
* a structure, it will re-set RESP to point to the
* structure return address. */
ffi_prep_incoming_args_SYSV(args, (void**)&resp, arg_area, cif);
(closure->fun) (cif, resp, arg_area, closure->user_data);
rtype = cif->flags;
#if defined(_WIN32) && !defined(_WIN64)
#ifdef _MSC_VER
/* now, do a generic return based on the value of rtype */
if (rtype == FFI_TYPE_INT)
{
_asm mov eax, resp ;
_asm mov eax, [eax] ;
}
else if (rtype == FFI_TYPE_FLOAT)
{
_asm mov eax, resp ;
_asm fld DWORD PTR [eax] ;
// asm ("flds (%0)" : : "r" (resp) : "st" );
}
else if (rtype == FFI_TYPE_DOUBLE)
{
_asm mov eax, resp ;
_asm fld QWORD PTR [eax] ;
// asm ("fldl (%0)" : : "r" (resp) : "st", "st(1)" );
}
else if (rtype == FFI_TYPE_LONGDOUBLE)
{
// asm ("fldt (%0)" : : "r" (resp) : "st", "st(1)" );
}
else if (rtype == FFI_TYPE_SINT64)
{
_asm mov edx, resp ;
_asm mov eax, [edx] ;
_asm mov edx, [edx + 4] ;
// asm ("movl 0(%0),%%eax;"
// "movl 4(%0),%%edx"
// : : "r"(resp)
// : "eax", "edx");
}
#else
/* now, do a generic return based on the value of rtype */
if (rtype == FFI_TYPE_INT)
{
asm ("movl (%0),%%eax" : : "r" (resp) : "eax");
}
else if (rtype == FFI_TYPE_FLOAT)
{
asm ("flds (%0)" : : "r" (resp) : "st" );
}
else if (rtype == FFI_TYPE_DOUBLE)
{
asm ("fldl (%0)" : : "r" (resp) : "st", "st(1)" );
}
else if (rtype == FFI_TYPE_LONGDOUBLE)
{
asm ("fldt (%0)" : : "r" (resp) : "st", "st(1)" );
}
else if (rtype == FFI_TYPE_SINT64)
{
asm ("movl 0(%0),%%eax;"
"movl 4(%0),%%edx"
: : "r"(resp)
: "eax", "edx");
}
#endif
#endif
#ifdef _WIN64
/* The result is returned in rax. This does the right thing for
result types except for floats; we have to 'mov xmm0, rax' in the
caller to correct this.
*/
return *(void **)resp;
#endif
}
/*@-exportheader@*/
static void
ffi_prep_incoming_args_SYSV(char *stack, void **rvalue,
void **avalue, ffi_cif *cif)
/*@=exportheader@*/
{
register unsigned int i;
register void **p_argv;
register char *argp;
register ffi_type **p_arg;
argp = stack;
if ( cif->rtype->type == FFI_TYPE_STRUCT ) {
*rvalue = *(void **) argp;
argp += 4;
}
p_argv = avalue;
for (i = cif->nargs, p_arg = cif->arg_types; (i != 0); i--, p_arg++)
{
size_t z;
/* Align if necessary */
if ((sizeof(char *) - 1) & (size_t) argp) {
argp = (char *) ALIGN(argp, sizeof(char*));
}
z = (*p_arg)->size;
/* because we're little endian, this is what it turns into. */
*p_argv = (void*) argp;
p_argv++;
argp += z;
}
return;
}
/* the cif must already be prep'ed */
extern void ffi_closure_OUTER();
ffi_status
ffi_prep_closure (ffi_closure* closure,
ffi_cif* cif,
void (*fun)(ffi_cif*,void*,void**,void*),
void *user_data)
{
short bytes;
char *tramp;
#ifdef _WIN64
int mask;
#endif
FFI_ASSERT (cif->abi == FFI_SYSV);
if (cif->abi == FFI_SYSV)
bytes = 0;
#if !defined(_WIN64)
else if (cif->abi == FFI_STDCALL)
bytes = cif->bytes;
#endif
else
return FFI_BAD_ABI;
tramp = &closure->tramp[0];
#define BYTES(text) memcpy(tramp, text, sizeof(text)), tramp += sizeof(text)-1
#define POINTER(x) *(void**)tramp = (void*)(x), tramp += sizeof(void*)
#define SHORT(x) *(short*)tramp = x, tramp += sizeof(short)
#define INT(x) *(int*)tramp = x, tramp += sizeof(int)
#ifdef _WIN64
if (cif->nargs >= 1 &&
(cif->arg_types[0]->type == FFI_TYPE_FLOAT
|| cif->arg_types[0]->type == FFI_TYPE_DOUBLE))
mask |= 1;
if (cif->nargs >= 2 &&
(cif->arg_types[1]->type == FFI_TYPE_FLOAT
|| cif->arg_types[1]->type == FFI_TYPE_DOUBLE))
mask |= 2;
if (cif->nargs >= 3 &&
(cif->arg_types[2]->type == FFI_TYPE_FLOAT
|| cif->arg_types[2]->type == FFI_TYPE_DOUBLE))
mask |= 4;
if (cif->nargs >= 4 &&
(cif->arg_types[3]->type == FFI_TYPE_FLOAT
|| cif->arg_types[3]->type == FFI_TYPE_DOUBLE))
mask |= 8;
/* 41 BB ---- mov r11d,mask */
BYTES("\x41\xBB"); INT(mask);
/* 48 B8 -------- mov rax, closure */
BYTES("\x48\xB8"); POINTER(closure);
/* 49 BA -------- mov r10, ffi_closure_OUTER */
BYTES("\x49\xBA"); POINTER(ffi_closure_OUTER);
/* 41 FF E2 jmp r10 */
BYTES("\x41\xFF\xE2");
#else
/* mov ecx, closure */
BYTES("\xb9"); POINTER(closure);
/* mov edx, esp */
BYTES("\x8b\xd4");
/* call ffi_closure_SYSV */
BYTES("\xe8"); POINTER((char*)&ffi_closure_SYSV - (tramp + 4));
/* ret bytes */
BYTES("\xc2");
SHORT(bytes);
#endif
if (tramp - &closure->tramp[0] > FFI_TRAMPOLINE_SIZE)
Py_FatalError("FFI_TRAMPOLINE_SIZE too small in " __FILE__);
closure->cif = cif;
closure->user_data = user_data;
closure->fun = fun;
return FFI_OK;
}

193
Modules/_ctypes/libffi_msvc/ffi.h
View File

@ -1,5 +1,5 @@
/* -----------------------------------------------------------------*-C-*- /* -----------------------------------------------------------------*-C-*-
libffi @VERSION@ - Copyright (c) 1996-2003, 2007, 2008 Red Hat, Inc. libffi 2.00-beta - Copyright (c) 1996-2003 Red Hat, Inc.
Permission is hereby granted, free of charge, to any person obtaining Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the a copy of this software and associated documentation files (the
@ -12,14 +12,13 @@
The above copyright notice and this permission notice shall be included The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software. in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER OTHER DEALINGS IN THE SOFTWARE.
DEALINGS IN THE SOFTWARE.
----------------------------------------------------------------------- */ ----------------------------------------------------------------------- */
@ -57,7 +56,7 @@ extern "C" {
#endif #endif
/* Specify which architecture libffi is configured for. */ /* Specify which architecture libffi is configured for. */
/* #define @TARGET@ */ //XXX #define X86
/* ---- System configuration information --------------------------------- */ /* ---- System configuration information --------------------------------- */
@ -65,10 +64,6 @@ extern "C" {
#ifndef LIBFFI_ASM #ifndef LIBFFI_ASM
#ifdef _MSC_VER
#define __attribute__(X)
#endif
#include <stddef.h> #include <stddef.h>
#include <limits.h> #include <limits.h>
@ -84,21 +79,12 @@ extern "C" {
# ifdef __GNUC__ # ifdef __GNUC__
# define FFI_LONG_LONG_MAX __LONG_LONG_MAX__ # define FFI_LONG_LONG_MAX __LONG_LONG_MAX__
# endif # endif
# ifdef _MSC_VER
# define FFI_LONG_LONG_MAX _I64_MAX
# endif
# endif # endif
#endif #endif
/* The closure code assumes that this works on pointers, i.e. a size_t */
/* can hold a pointer. */
typedef struct _ffi_type
{
size_t size;
unsigned short alignment;
unsigned short type;
struct _ffi_type **elements;
} ffi_type;
#ifndef LIBFFI_HIDE_BASIC_TYPES
#if SCHAR_MAX == 127 #if SCHAR_MAX == 127
# define ffi_type_uchar ffi_type_uint8 # define ffi_type_uchar ffi_type_uint8
# define ffi_type_schar ffi_type_sint8 # define ffi_type_schar ffi_type_sint8
@ -129,6 +115,8 @@ typedef struct _ffi_type
#error "int size not supported" #error "int size not supported"
#endif #endif
#define ffi_type_ulong ffi_type_uint64
#define ffi_type_slong ffi_type_sint64
#if LONG_MAX == 2147483647 #if LONG_MAX == 2147483647
# if FFI_LONG_LONG_MAX != 9223372036854775807 # if FFI_LONG_LONG_MAX != 9223372036854775807
#error "no 64-bit data type supported" #error "no 64-bit data type supported"
@ -137,15 +125,16 @@ typedef struct _ffi_type
#error "long size not supported" #error "long size not supported"
#endif #endif
#if LONG_MAX == 2147483647 /* The closure code assumes that this works on pointers, i.e. a size_t */
# define ffi_type_ulong ffi_type_uint32 /* can hold a pointer. */
# define ffi_type_slong ffi_type_sint32
#elif LONG_MAX == 9223372036854775807 typedef struct _ffi_type
# define ffi_type_ulong ffi_type_uint64 {
# define ffi_type_slong ffi_type_sint64 size_t size;
#else unsigned short alignment;
#error "long size not supported" unsigned short type;
#endif /*@null@*/ struct _ffi_type **elements;
} ffi_type;
/* These are defined in types.c */ /* These are defined in types.c */
extern ffi_type ffi_type_void; extern ffi_type ffi_type_void;
@ -159,14 +148,9 @@ extern ffi_type ffi_type_uint64;
extern ffi_type ffi_type_sint64; extern ffi_type ffi_type_sint64;
extern ffi_type ffi_type_float; extern ffi_type ffi_type_float;
extern ffi_type ffi_type_double; extern ffi_type ffi_type_double;
extern ffi_type ffi_type_longdouble;
extern ffi_type ffi_type_pointer; extern ffi_type ffi_type_pointer;
#if HAVE_LONG_DOUBLE
extern ffi_type ffi_type_longdouble;
#else
#define ffi_type_longdouble ffi_type_double
#endif
#endif /* LIBFFI_HIDE_BASIC_TYPES */
typedef enum { typedef enum {
FFI_OK = 0, FFI_OK = 0,
@ -179,8 +163,8 @@ typedef unsigned FFI_TYPE;
typedef struct { typedef struct {
ffi_abi abi; ffi_abi abi;
unsigned nargs; unsigned nargs;
ffi_type **arg_types; /*@dependent@*/ ffi_type **arg_types;
ffi_type *rtype; /*@dependent@*/ ffi_type *rtype;
unsigned bytes; unsigned bytes;
unsigned flags; unsigned flags;
#ifdef FFI_EXTRA_CIF_FIELDS #ifdef FFI_EXTRA_CIF_FIELDS
@ -190,16 +174,10 @@ typedef struct {
/* ---- Definitions for the raw API -------------------------------------- */ /* ---- Definitions for the raw API -------------------------------------- */
#ifndef FFI_SIZEOF_ARG #ifdef _WIN64
# if LONG_MAX == 2147483647 #define FFI_SIZEOF_ARG 8
# define FFI_SIZEOF_ARG 4 #else
# elif LONG_MAX == 9223372036854775807 #define FFI_SIZEOF_ARG 4
# define FFI_SIZEOF_ARG 8
# endif
#endif
#ifndef FFI_SIZEOF_JAVA_RAW
# define FFI_SIZEOF_JAVA_RAW FFI_SIZEOF_ARG
#endif #endif
typedef union { typedef union {
@ -210,25 +188,10 @@ typedef union {
void* ptr; void* ptr;
} ffi_raw; } ffi_raw;
#if FFI_SIZEOF_JAVA_RAW == 4 && FFI_SIZEOF_ARG == 8 void ffi_raw_call (/*@dependent@*/ ffi_cif *cif,
/* This is a special case for mips64/n32 ABI (and perhaps others) where void (*fn)(),
sizeof(void *) is 4 and FFI_SIZEOF_ARG is 8. */ /*@out@*/ void *rvalue,
typedef union { /*@dependent@*/ ffi_raw *avalue);
signed int sint;
unsigned int uint;
float flt;
char data[FFI_SIZEOF_JAVA_RAW];
void* ptr;
} ffi_java_raw;
#else
typedef ffi_raw ffi_java_raw;
#endif
void ffi_raw_call (ffi_cif *cif,
void (*fn)(void),
void *rvalue,
ffi_raw *avalue);
void ffi_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_raw *raw); void ffi_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_raw *raw);
void ffi_raw_to_ptrarray (ffi_cif *cif, ffi_raw *raw, void **args); void ffi_raw_to_ptrarray (ffi_cif *cif, ffi_raw *raw, void **args);
@ -238,35 +201,25 @@ size_t ffi_raw_size (ffi_cif *cif);
/* packing, even on 64-bit machines. I.e. on 64-bit machines */ /* packing, even on 64-bit machines. I.e. on 64-bit machines */
/* longs and doubles are followed by an empty 64-bit word. */ /* longs and doubles are followed by an empty 64-bit word. */
void ffi_java_raw_call (ffi_cif *cif, void ffi_java_raw_call (/*@dependent@*/ ffi_cif *cif,
void (*fn)(void), void (*fn)(),
void *rvalue, /*@out@*/ void *rvalue,
ffi_java_raw *avalue); /*@dependent@*/ ffi_raw *avalue);
void ffi_java_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_java_raw *raw); void ffi_java_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_raw *raw);
void ffi_java_raw_to_ptrarray (ffi_cif *cif, ffi_java_raw *raw, void **args); void ffi_java_raw_to_ptrarray (ffi_cif *cif, ffi_raw *raw, void **args);
size_t ffi_java_raw_size (ffi_cif *cif); size_t ffi_java_raw_size (ffi_cif *cif);
/* ---- Definitions for closures ----------------------------------------- */ /* ---- Definitions for closures ----------------------------------------- */
#if FFI_CLOSURES #if FFI_CLOSURES
#ifdef _MSC_VER
__declspec(align(8))
#endif
typedef struct { typedef struct {
char tramp[FFI_TRAMPOLINE_SIZE]; char tramp[FFI_TRAMPOLINE_SIZE];
ffi_cif *cif; ffi_cif *cif;
void (*fun)(ffi_cif*,void*,void**,void*); void (*fun)(ffi_cif*,void*,void**,void*);
void *user_data; void *user_data;
#ifdef __GNUC__
} ffi_closure __attribute__((aligned (8)));
#else
} ffi_closure; } ffi_closure;
#endif
void *ffi_closure_alloc (size_t size, void **code);
void ffi_closure_free (void *);
ffi_status ffi_status
ffi_prep_closure (ffi_closure*, ffi_prep_closure (ffi_closure*,
@ -274,13 +227,6 @@ ffi_prep_closure (ffi_closure*,
void (*fun)(ffi_cif*,void*,void**,void*), void (*fun)(ffi_cif*,void*,void**,void*),
void *user_data); void *user_data);
ffi_status
ffi_prep_closure_loc (ffi_closure*,
ffi_cif *,
void (*fun)(ffi_cif*,void*,void**,void*),
void *user_data,
void*codeloc);
typedef struct { typedef struct {
char tramp[FFI_TRAMPOLINE_SIZE]; char tramp[FFI_TRAMPOLINE_SIZE];
@ -302,27 +248,6 @@ typedef struct {
} ffi_raw_closure; } ffi_raw_closure;
typedef struct {
char tramp[FFI_TRAMPOLINE_SIZE];
ffi_cif *cif;
#if !FFI_NATIVE_RAW_API
/* if this is enabled, then a raw closure has the same layout
as a regular closure. We use this to install an intermediate
handler to do the transaltion, void** -> ffi_raw*. */
void (*translate_args)(ffi_cif*,void*,void**,void*);
void *this_closure;
#endif
void (*fun)(ffi_cif*,void*,ffi_java_raw*,void*);
void *user_data;
} ffi_java_raw_closure;
ffi_status ffi_status
ffi_prep_raw_closure (ffi_raw_closure*, ffi_prep_raw_closure (ffi_raw_closure*,
ffi_cif *cif, ffi_cif *cif,
@ -330,42 +255,29 @@ ffi_prep_raw_closure (ffi_raw_closure*,
void *user_data); void *user_data);
ffi_status ffi_status
ffi_prep_raw_closure_loc (ffi_raw_closure*, ffi_prep_java_raw_closure (ffi_raw_closure*,
ffi_cif *cif, ffi_cif *cif,
void (*fun)(ffi_cif*,void*,ffi_raw*,void*), void (*fun)(ffi_cif*,void*,ffi_raw*,void*),
void *user_data,
void *codeloc);
ffi_status
ffi_prep_java_raw_closure (ffi_java_raw_closure*,
ffi_cif *cif,
void (*fun)(ffi_cif*,void*,ffi_java_raw*,void*),
void *user_data); void *user_data);
ffi_status
ffi_prep_java_raw_closure_loc (ffi_java_raw_closure*,
ffi_cif *cif,
void (*fun)(ffi_cif*,void*,ffi_java_raw*,void*),
void *user_data,
void *codeloc);
#endif /* FFI_CLOSURES */ #endif /* FFI_CLOSURES */
/* ---- Public interface definition -------------------------------------- */ /* ---- Public interface definition -------------------------------------- */
ffi_status ffi_prep_cif(ffi_cif *cif, ffi_status ffi_prep_cif(/*@out@*/ /*@partial@*/ ffi_cif *cif,
ffi_abi abi, ffi_abi abi,
unsigned int nargs, unsigned int nargs,
ffi_type *rtype, /*@dependent@*/ /*@out@*/ /*@partial@*/ ffi_type *rtype,
ffi_type **atypes); /*@dependent@*/ ffi_type **atypes);
void ffi_call(ffi_cif *cif, int
void (*fn)(void), ffi_call(/*@dependent@*/ ffi_cif *cif,
void *rvalue, void (*fn)(),
void **avalue); /*@out@*/ void *rvalue,
/*@dependent@*/ void **avalue);
/* Useful for eliminating compiler warnings */ /* Useful for eliminating compiler warnings */
#define FFI_FN(f) ((void (*)(void))f) #define FFI_FN(f) ((void (*)())f)
/* ---- Definitions shared with assembly code ---------------------------- */ /* ---- Definitions shared with assembly code ---------------------------- */
@ -376,7 +288,7 @@ void ffi_call(ffi_cif *cif,
#define FFI_TYPE_INT 1 #define FFI_TYPE_INT 1
#define FFI_TYPE_FLOAT 2 #define FFI_TYPE_FLOAT 2
#define FFI_TYPE_DOUBLE 3 #define FFI_TYPE_DOUBLE 3
#if HAVE_LONG_DOUBLE #if 1
#define FFI_TYPE_LONGDOUBLE 4 #define FFI_TYPE_LONGDOUBLE 4
#else #else
#define FFI_TYPE_LONGDOUBLE FFI_TYPE_DOUBLE #define FFI_TYPE_LONGDOUBLE FFI_TYPE_DOUBLE
@ -400,3 +312,4 @@ void ffi_call(ffi_cif *cif,
#endif #endif
#endif #endif

77
Modules/_ctypes/libffi_msvc/ffi_common.h Normal file
View File

@ -0,0 +1,77 @@
/* -----------------------------------------------------------------------
ffi_common.h - Copyright (c) 1996 Red Hat, Inc.
Common internal definitions and macros. Only necessary for building
libffi.
----------------------------------------------------------------------- */
#ifndef FFI_COMMON_H
#define FFI_COMMON_H
#ifdef __cplusplus
extern "C" {
#endif
#include <fficonfig.h>
#include <malloc.h>
/* Check for the existence of memcpy. */
#if STDC_HEADERS
# include <string.h>
#else
# ifndef HAVE_MEMCPY
# define memcpy(d, s, n) bcopy ((s), (d), (n))
# endif
#endif
#if defined(FFI_DEBUG)
#include <stdio.h>
#endif
#ifdef FFI_DEBUG
/*@exits@*/ void ffi_assert(/*@temp@*/ char *expr, /*@temp@*/ char *file, int line);
void ffi_stop_here(void);
void ffi_type_test(/*@temp@*/ /*@out@*/ ffi_type *a, /*@temp@*/ char *file, int line);
#define FFI_ASSERT(x) ((x) ? (void)0 : ffi_assert(#x, __FILE__,__LINE__))
#define FFI_ASSERT_AT(x, f, l) ((x) ? 0 : ffi_assert(#x, (f), (l)))
#define FFI_ASSERT_VALID_TYPE(x) ffi_type_test (x, __FILE__, __LINE__)
#else
#define FFI_ASSERT(x)
#define FFI_ASSERT_AT(x, f, l)
#define FFI_ASSERT_VALID_TYPE(x)
#endif
#define ALIGN(v, a) (((((size_t) (v))-1) | ((a)-1))+1)
/* Perform machine dependent cif processing */
ffi_status ffi_prep_cif_machdep(ffi_cif *cif);
/* Extended cif, used in callback from assembly routine */
typedef struct
{
/*@dependent@*/ ffi_cif *cif;
/*@dependent@*/ void *rvalue;
/*@dependent@*/ void **avalue;
} extended_cif;
/* Terse sized type definitions. */
typedef unsigned int UINT8 __attribute__((__mode__(__QI__)));
typedef signed int SINT8 __attribute__((__mode__(__QI__)));
typedef unsigned int UINT16 __attribute__((__mode__(__HI__)));
typedef signed int SINT16 __attribute__((__mode__(__HI__)));
typedef unsigned int UINT32 __attribute__((__mode__(__SI__)));
typedef signed int SINT32 __attribute__((__mode__(__SI__)));
typedef unsigned int UINT64 __attribute__((__mode__(__DI__)));
typedef signed int SINT64 __attribute__((__mode__(__DI__)));
typedef float FLOAT32;
#ifdef __cplusplus
}
#endif
#endif

232
Modules/_ctypes/libffi_msvc/fficonfig.h
View File

@ -1,186 +1,96 @@
/* fficonfig.h. Originally created by configure, now hand_maintained for MSVC. */ /* fficonfig.h. Originally created by configure, now hand_maintained for MSVC. */
/* fficonfig.h.in. Generated from configure.ac by autoheader. */ /* fficonfig.h. Generated automatically by configure. */
/* fficonfig.h.in. Generated automatically from configure.in by autoheader. */
/* Define if building universal (internal helper macro) */ /* Define this for MSVC, but not for mingw32! */
/* #undef AC_APPLE_UNIVERSAL_BUILD */ #ifdef _MSC_VER
#define __attribute__(x) /* */
#endif
#define alloca _alloca
/* Define to one of `_getb67', `GETB67', `getb67' for Cray-2 and Cray-YMP /*----------------------------------------------------------------*/
systems. This function is required for `alloca.c' support on those systems.
*/
/* #undef CRAY_STACKSEG_END */
/* Define to 1 if using `alloca.c'. */ /* Define if using alloca.c. */
/* #undef C_ALLOCA */ /* #undef C_ALLOCA */
/* Define to the flags needed for the .section .eh_frame directive. */ /* Define to one of _getb67, GETB67, getb67 for Cray-2 and Cray-YMP systems.
/* #undef EH_FRAME_FLAGS */ This function is required for alloca.c support on those systems. */
/* #undef CRAY_STACKSEG_END */
/* Define this if you want extra debugging. */ /* Define if you have alloca, as a function or macro. */
/* #undef FFI_DEBUG */
/* Cannot use malloc on this target, so, we revert to alternative means */
/* #undef FFI_MMAP_EXEC_WRIT */
/* Define this is you do not want support for the raw API. */
#define FFI_NO_RAW_API 1
/* Define this is you do not want support for aggregate types. */
/* #undef FFI_NO_STRUCTS */
/* Define to 1 if you have `alloca', as a function or macro. */
#define HAVE_ALLOCA 1 #define HAVE_ALLOCA 1
/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix). /* Define if you have <alloca.h> and it should be used (not on Ultrix). */
*/ /* #define HAVE_ALLOCA_H 1 */
/* #undef HAVE_ALLOCA_H */
/* Define if your assembler supports .cfi_* directives. */ /* If using the C implementation of alloca, define if you know the
/* #undef HAVE_AS_CFI_PSEUDO_OP */ direction of stack growth for your system; otherwise it will be
automatically deduced at run-time.
STACK_DIRECTION > 0 => grows toward higher addresses
STACK_DIRECTION < 0 => grows toward lower addresses
STACK_DIRECTION = 0 => direction of growth unknown
*/
/* #undef STACK_DIRECTION */
/* Define if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* Define if you have the memcpy function. */
#define HAVE_MEMCPY 1
/* Define if read-only mmap of a plain file works. */
//#define HAVE_MMAP_FILE 1
/* Define if mmap of /dev/zero works. */
//#define HAVE_MMAP_DEV_ZERO 1
/* Define if mmap with MAP_ANON(YMOUS) works. */
//#define HAVE_MMAP_ANON 1
/* The number of bytes in type double */
#define SIZEOF_DOUBLE 8
/* The number of bytes in type long double */
#define SIZEOF_LONG_DOUBLE 12
/* Define if you have the long double type and it is bigger than a double */
#define HAVE_LONG_DOUBLE 1
/* whether byteorder is bigendian */
/* #undef WORDS_BIGENDIAN */
/* Define if the host machine stores words of multi-word integers in
big-endian order. */
/* #undef HOST_WORDS_BIG_ENDIAN */
/* 1234 = LIL_ENDIAN, 4321 = BIGENDIAN */
#define BYTEORDER 1234
/* Define if your assembler and linker support unaligned PC relative relocs. */
/* #undef HAVE_AS_SPARC_UA_PCREL */
/* Define if your assembler supports .register. */ /* Define if your assembler supports .register. */
/* #undef HAVE_AS_REGISTER_PSEUDO_OP */ /* #undef HAVE_AS_REGISTER_PSEUDO_OP */
/* Define if your assembler and linker support unaligned PC relative relocs.
*/
/* #undef HAVE_AS_SPARC_UA_PCREL */
/* Define if your assembler supports PC relative relocs. */
/* #undef HAVE_AS_X86_PCREL */
/* Define to 1 if you have the <dlfcn.h> header file. */
/* #undef HAVE_DLFCN_H */
/* Define if __attribute__((visibility("hidden"))) is supported. */
/* #undef HAVE_HIDDEN_VISIBILITY_ATTRIBUTE */
/* Define to 1 if you have the <inttypes.h> header file. */
/* #undef HAVE_INTTYPES_H */
/* Define if you have the long double type and it is bigger than a double */
/* #undef HAVE_LONG_DOUBLE */
/* Define to 1 if you have the `memcpy' function. */
#define HAVE_MEMCPY 1
/* Define to 1 if you have the <memory.h> header file. */
/* #undef HAVE_MEMORY_H */
/* Define to 1 if you have the `mmap' function. */
/* #undef HAVE_MMAP */
/* Define if mmap with MAP_ANON(YMOUS) works. */
/* #undef HAVE_MMAP_ANON */
/* Define if mmap of /dev/zero works. */
/* #undef HAVE_MMAP_DEV_ZERO */
/* Define if read-only mmap of a plain file works. */
/* #undef HAVE_MMAP_FILE */
/* Define if .eh_frame sections should be read-only. */ /* Define if .eh_frame sections should be read-only. */
/* #undef HAVE_RO_EH_FRAME */ /* #undef HAVE_RO_EH_FRAME */
/* Define to 1 if you have the <stdint.h> header file. */ /* Define to the flags needed for the .section .eh_frame directive. */
#undef HAVE_STDINT_H /* #define EH_FRAME_FLAGS "aw" */
/* Define to 1 if you have the <stdlib.h> header file. */ /* Define to the flags needed for the .section .eh_frame directive. */
#undef HAVE_STDLIB_H /* #define EH_FRAME_FLAGS "aw" */
/* Define to 1 if you have the <strings.h> header file. */ /* Define this if you want extra debugging. */
#undef HAVE_STRINGS_H /* #undef FFI_DEBUG */
/* Define to 1 if you have the <string.h> header file. */ /* Define this is you do not want support for aggregate types. */
#undef HAVE_STRING_H /* #undef FFI_NO_STRUCTS */
/* Define to 1 if you have the <sys/mman.h> header file. */ /* Define this is you do not want support for the raw API. */
/* #undef HAVE_SYS_MMAN_H */ /* #undef FFI_NO_RAW_API */
/* Define to 1 if you have the <sys/stat.h> header file. */ /* Define this if you are using Purify and want to suppress spurious messages. */
/* #undef HAVE_SYS_STAT_H */
/* Define to 1 if you have the <sys/types.h> header file. */
/* #undef HAVE_SYS_TYPES_H */
/* Define to 1 if you have the <unistd.h> header file. */
/* #undef HAVE_UNISTD_H */
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
/* #undef LT_OBJDIR */
/* Define to 1 if your C compiler doesn't accept -c and -o together. */
/* #undef NO_MINUS_C_MINUS_O */
/* Name of package */
/* #undef PACKAGE */
/* Define to the address where bug reports for this package should be sent. */
/* #undef PACKAGE_BUGREPORT */
/* Define to the full name of this package. */
/* #undef PACKAGE_NAME */
/* Define to the full name and version of this package. */
/* #undef PACKAGE_STRING */
/* Define to the one symbol short name of this package. */
/* #undef PACKAGE_TARNAME */
/* Define to the home page for this package. */
/* #undef PACKAGE_URL */
/* Define to the version of this package. */
/* #undef PACKAGE_VERSION */
/* The size of `double', as computed by sizeof. */
#define SIZEOF_DOUBLE 8
/* The size of `long double', as computed by sizeof. */
#undef SIZEOF_LONG_DOUBLE
/* If using the C implementation of alloca, define if you know the
direction of stack growth for your system; otherwise it will be
automatically deduced at runtime.
STACK_DIRECTION > 0 => grows toward higher addresses
STACK_DIRECTION < 0 => grows toward lower addresses
STACK_DIRECTION = 0 => direction of growth unknown */
/* #undef STACK_DIRECTION */
/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* Define this if you are using Purify and want to suppress spurious messages.
*/
/* #undef USING_PURIFY */ /* #undef USING_PURIFY */
/* Version number of package */
/* #undef VERSION */
/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
significant byte first (like Motorola and SPARC, unlike Intel). */
#if defined AC_APPLE_UNIVERSAL_BUILD
# if defined __BIG_ENDIAN__
# define WORDS_BIGENDIAN 1
# endif
#else
# ifndef WORDS_BIGENDIAN
# undef WORDS_BIGENDIAN
# endif
#endif
#ifdef HAVE_HIDDEN_VISIBILITY_ATTRIBUTE
#ifdef LIBFFI_ASM
#define FFI_HIDDEN(name) .hidden name
#else
#define FFI_HIDDEN __attribute__ ((visibility ("hidden")))
#endif
#else
#ifdef LIBFFI_ASM
#define FFI_HIDDEN(name)
#else
#define FFI_HIDDEN
#endif
#endif

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/* -----------------------------------------------------------------*-C-*-
ffitarget.h - Copyright (c) 1996-2003 Red Hat, Inc.
Target configuration macros for x86 and x86-64.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
``Software''), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
----------------------------------------------------------------------- */
#ifndef LIBFFI_TARGET_H
#define LIBFFI_TARGET_H
/* ---- System specific configurations ----------------------------------- */
#if defined (X86_64) && defined (__i386__)
#undef X86_64
#define X86
#endif
/* ---- Generic type definitions ----------------------------------------- */
#ifndef LIBFFI_ASM
#ifndef _WIN64
typedef unsigned long ffi_arg;
#else
typedef unsigned __int64 ffi_arg;
#endif
typedef signed long ffi_sarg;
typedef enum ffi_abi {
FFI_FIRST_ABI = 0,
/* ---- Intel x86 Win32 ---------- */
FFI_SYSV,
#ifndef _WIN64
FFI_STDCALL,
#endif
/* TODO: Add fastcall support for the sake of completeness */
FFI_DEFAULT_ABI = FFI_SYSV,
/* ---- Intel x86 and AMD x86-64 - */
/* #if !defined(X86_WIN32) && (defined(__i386__) || defined(__x86_64__)) */
/* FFI_SYSV, */
/* FFI_UNIX64,*/ /* Unix variants all use the same ABI for x86-64 */
/* #ifdef __i386__ */
/* FFI_DEFAULT_ABI = FFI_SYSV, */
/* #else */
/* FFI_DEFAULT_ABI = FFI_UNIX64, */
/* #endif */
/* #endif */
FFI_LAST_ABI = FFI_DEFAULT_ABI + 1
} ffi_abi;
#endif
/* ---- Definitions for closures ----------------------------------------- */
#define FFI_CLOSURES 1
#ifdef _WIN64
#define FFI_TRAMPOLINE_SIZE 29
#define FFI_NATIVE_RAW_API 0
#else
#define FFI_TRAMPOLINE_SIZE 15
#define FFI_NATIVE_RAW_API 1 /* x86 has native raw api support */
#endif
#endif

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/* -----------------------------------------------------------------------
prep_cif.c - Copyright (c) 1996, 1998 Red Hat, Inc.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
``Software''), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
----------------------------------------------------------------------- */
#include <ffi.h>
#include <ffi_common.h>
#include <stdlib.h>
/* Round up to FFI_SIZEOF_ARG. */
#define STACK_ARG_SIZE(x) ALIGN(x, FFI_SIZEOF_ARG)
/* Perform machine independent initialization of aggregate type
specifications. */
static ffi_status initialize_aggregate(/*@out@*/ ffi_type *arg)
{
ffi_type **ptr;
FFI_ASSERT(arg != NULL);
/*@-usedef@*/
FFI_ASSERT(arg->elements != NULL);
FFI_ASSERT(arg->size == 0);
FFI_ASSERT(arg->alignment == 0);
ptr = &(arg->elements[0]);
while ((*ptr) != NULL)
{
if (((*ptr)->size == 0) && (initialize_aggregate((*ptr)) != FFI_OK))
return FFI_BAD_TYPEDEF;
/* Perform a sanity check on the argument type */
FFI_ASSERT_VALID_TYPE(*ptr);
arg->size = ALIGN(arg->size, (*ptr)->alignment);
arg->size += (*ptr)->size;
arg->alignment = (arg->alignment > (*ptr)->alignment) ?
arg->alignment : (*ptr)->alignment;
ptr++;
}
/* Structure size includes tail padding. This is important for
structures that fit in one register on ABIs like the PowerPC64
Linux ABI that right justify small structs in a register.
It's also needed for nested structure layout, for example
struct A { long a; char b; }; struct B { struct A x; char y; };
should find y at an offset of 2*sizeof(long) and result in a
total size of 3*sizeof(long). */
arg->size = ALIGN (arg->size, arg->alignment);
if (arg->size == 0)
return FFI_BAD_TYPEDEF;
else
return FFI_OK;
/*@=usedef@*/
}
/* Perform machine independent ffi_cif preparation, then call
machine dependent routine. */
ffi_status ffi_prep_cif(/*@out@*/ /*@partial@*/ ffi_cif *cif,
ffi_abi abi, unsigned int nargs,
/*@dependent@*/ /*@out@*/ /*@partial@*/ ffi_type *rtype,
/*@dependent@*/ ffi_type **atypes)
{
unsigned bytes = 0;
unsigned int i;
ffi_type **ptr;
FFI_ASSERT(cif != NULL);
FFI_ASSERT((abi > FFI_FIRST_ABI) && (abi <= FFI_DEFAULT_ABI));
cif->abi = abi;
cif->arg_types = atypes;
cif->nargs = nargs;
cif->rtype = rtype;
cif->flags = 0;
/* Initialize the return type if necessary */
/*@-usedef@*/
if ((cif->rtype->size == 0) && (initialize_aggregate(cif->rtype) != FFI_OK))
return FFI_BAD_TYPEDEF;
/*@=usedef@*/
/* Perform a sanity check on the return type */
FFI_ASSERT_VALID_TYPE(cif->rtype);
/* x86-64 and s390 stack space allocation is handled in prep_machdep. */
#if !defined M68K && !defined __x86_64__ && !defined S390
/* Make space for the return structure pointer */
if (cif->rtype->type == FFI_TYPE_STRUCT
/* MSVC returns small structures in registers. But we have a different
workaround: pretend int32 or int64 return type, and converting to
structure afterwards. */
#ifdef SPARC
&& (cif->abi != FFI_V9 || cif->rtype->size > 32)
#endif
)
bytes = STACK_ARG_SIZE(sizeof(void*));
#endif
for (ptr = cif->arg_types, i = cif->nargs; i > 0; i--, ptr++)
{
/* Initialize any uninitialized aggregate type definitions */
if (((*ptr)->size == 0) && (initialize_aggregate((*ptr)) != FFI_OK))
return FFI_BAD_TYPEDEF;
/* Perform a sanity check on the argument type, do this
check after the initialization. */
FFI_ASSERT_VALID_TYPE(*ptr);
#if !defined __x86_64__ && !defined S390
#ifdef SPARC
if (((*ptr)->type == FFI_TYPE_STRUCT
&& ((*ptr)->size > 16 || cif->abi != FFI_V9))
|| ((*ptr)->type == FFI_TYPE_LONGDOUBLE
&& cif->abi != FFI_V9))
bytes += sizeof(void*);
else
#endif
{
#if !defined(_MSC_VER) && !defined(__MINGW32__)
/* Don't know if this is a libffi bug or not. At least on
Windows with MSVC, function call parameters are *not*
aligned in the same way as structure fields are, they are
only aligned in integer boundaries.
This doesn't do any harm for cdecl functions and closures,
since the caller cleans up the stack, but it is wrong for
stdcall functions where the callee cleans.
*/
/* Add any padding if necessary */
if (((*ptr)->alignment - 1) & bytes)
bytes = ALIGN(bytes, (*ptr)->alignment);
#endif
bytes += STACK_ARG_SIZE((*ptr)->size);
}
#endif
}
cif->bytes = bytes;
/* Perform machine dependent cif processing */
return ffi_prep_cif_machdep(cif);
}

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/* -----------------------------------------------------------------------
types.c - Copyright (c) 1996, 1998 Red Hat, Inc.
Predefined ffi_types needed by libffi.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
``Software''), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
----------------------------------------------------------------------- */
#include <ffi.h>
#include <ffi_common.h>
/* Type definitions */
#define FFI_INTEGRAL_TYPEDEF(n, s, a, t) ffi_type ffi_type_##n = { s, a, t, NULL }
#define FFI_AGGREGATE_TYPEDEF(n, e) ffi_type ffi_type_##n = { 0, 0, FFI_TYPE_STRUCT, e }
/* Size and alignment are fake here. They must not be 0. */
FFI_INTEGRAL_TYPEDEF(void, 1, 1, FFI_TYPE_VOID);
FFI_INTEGRAL_TYPEDEF(uint8, 1, 1, FFI_TYPE_UINT8);
FFI_INTEGRAL_TYPEDEF(sint8, 1, 1, FFI_TYPE_SINT8);
FFI_INTEGRAL_TYPEDEF(uint16, 2, 2, FFI_TYPE_UINT16);
FFI_INTEGRAL_TYPEDEF(sint16, 2, 2, FFI_TYPE_SINT16);
FFI_INTEGRAL_TYPEDEF(uint32, 4, 4, FFI_TYPE_UINT32);
FFI_INTEGRAL_TYPEDEF(sint32, 4, 4, FFI_TYPE_SINT32);
FFI_INTEGRAL_TYPEDEF(float, 4, 4, FFI_TYPE_FLOAT);
#if defined ALPHA || defined SPARC64 || defined X86_64 || defined S390X \
|| defined IA64
FFI_INTEGRAL_TYPEDEF(pointer, 8, 8, FFI_TYPE_POINTER);
#else
FFI_INTEGRAL_TYPEDEF(pointer, 4, 4, FFI_TYPE_POINTER);
#endif
#if defined X86 || defined X86_WIN32 || defined ARM || defined M68K
FFI_INTEGRAL_TYPEDEF(uint64, 8, 4, FFI_TYPE_UINT64);
FFI_INTEGRAL_TYPEDEF(sint64, 8, 4, FFI_TYPE_SINT64);
#elif defined SH
FFI_INTEGRAL_TYPEDEF(uint64, 8, 4, FFI_TYPE_UINT64);
FFI_INTEGRAL_TYPEDEF(sint64, 8, 4, FFI_TYPE_SINT64);
#else
FFI_INTEGRAL_TYPEDEF(uint64, 8, 8, FFI_TYPE_UINT64);
FFI_INTEGRAL_TYPEDEF(sint64, 8, 8, FFI_TYPE_SINT64);
#endif
#if defined X86 || defined X86_WIN32 || defined M68K
FFI_INTEGRAL_TYPEDEF(double, 8, 4, FFI_TYPE_DOUBLE);
FFI_INTEGRAL_TYPEDEF(longdouble, 12, 4, FFI_TYPE_LONGDOUBLE);
#elif defined ARM || defined SH || defined POWERPC_AIX || defined POWERPC_DARWIN
FFI_INTEGRAL_TYPEDEF(double, 8, 4, FFI_TYPE_DOUBLE);
FFI_INTEGRAL_TYPEDEF(longdouble, 8, 4, FFI_TYPE_LONGDOUBLE);
#elif defined SPARC
FFI_INTEGRAL_TYPEDEF(double, 8, 8, FFI_TYPE_DOUBLE);
#ifdef SPARC64
FFI_INTEGRAL_TYPEDEF(longdouble, 16, 16, FFI_TYPE_LONGDOUBLE);
#else
FFI_INTEGRAL_TYPEDEF(longdouble, 16, 8, FFI_TYPE_LONGDOUBLE);
#endif
#elif defined X86_64
FFI_INTEGRAL_TYPEDEF(double, 8, 8, FFI_TYPE_DOUBLE);
FFI_INTEGRAL_TYPEDEF(longdouble, 16, 16, FFI_TYPE_LONGDOUBLE);
#else
FFI_INTEGRAL_TYPEDEF(double, 8, 8, FFI_TYPE_DOUBLE);
FFI_INTEGRAL_TYPEDEF(longdouble, 8, 8, FFI_TYPE_LONGDOUBLE);
#endif

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/* -----------------------------------------------------------------------
win32.S - Copyright (c) 1996, 1998, 2001, 2002 Red Hat, Inc.
Copyright (c) 2001 John Beniton
Copyright (c) 2002 Ranjit Mathew
X86 Foreign Function Interface
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
``Software''), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
----------------------------------------------------------------------- */
/* theller: almost verbatim translation from gas syntax to MSVC inline
assembler code. */
/* theller: ffi_call_x86 now returns an integer - the difference of the stack
pointer before and after the function call. If everything is ok, zero is
returned. If stdcall functions are passed the wrong number of arguments,
the difference will be nonzero. */
#include <ffi.h>
#include <ffi_common.h>
__declspec(naked) int
ffi_call_x86(void (* prepfunc)(char *, extended_cif *), /* 8 */
extended_cif *ecif, /* 12 */
unsigned bytes, /* 16 */
unsigned flags, /* 20 */
unsigned *rvalue, /* 24 */
void (*fn)()) /* 28 */
{
_asm {
push ebp
mov ebp, esp
push esi // NEW: this register must be preserved across function calls
// XXX SAVE ESP NOW!
mov esi, esp // save stack pointer before the call
// Make room for all of the new args.
mov ecx, [ebp+16]
sub esp, ecx // sub esp, bytes
mov eax, esp
// Place all of the ffi_prep_args in position
push [ebp + 12] // ecif
push eax
call [ebp + 8] // prepfunc
// Return stack to previous state and call the function
add esp, 8
// FIXME: Align the stack to a 128-bit boundary to avoid
// potential performance hits.
call [ebp + 28]
// Load ecif->cif->abi
mov ecx, [ebp + 12]
mov ecx, [ecx]ecif.cif
mov ecx, [ecx]ecif.cif.abi
cmp ecx, FFI_STDCALL
je noclean
// STDCALL: Remove the space we pushed for the args
mov ecx, [ebp + 16]
add esp, ecx
// CDECL: Caller has already cleaned the stack
noclean:
// Check that esp has the same value as before!
sub esi, esp
// Load %ecx with the return type code
mov ecx, [ebp + 20]
// If the return value pointer is NULL, assume no return value.
/*
Intel asm is weird. We have to explicitely specify 'DWORD PTR' in the nexr instruction,
otherwise only one BYTE will be compared (instead of a DWORD)!
*/
cmp DWORD PTR [ebp + 24], 0
jne sc_retint
// Even if there is no space for the return value, we are
// obliged to handle floating-point values.
cmp ecx, FFI_TYPE_FLOAT
jne sc_noretval
// fstp %st(0)
fstp st(0)
jmp sc_epilogue
sc_retint:
cmp ecx, FFI_TYPE_INT
jne sc_retfloat
// # Load %ecx with the pointer to storage for the return value
mov ecx, [ebp + 24]
mov [ecx + 0], eax
jmp sc_epilogue
sc_retfloat:
cmp ecx, FFI_TYPE_FLOAT
jne sc_retdouble
// Load %ecx with the pointer to storage for the return value
mov ecx, [ebp+24]
// fstps (%ecx)
fstp DWORD PTR [ecx]
jmp sc_epilogue
sc_retdouble:
cmp ecx, FFI_TYPE_DOUBLE
jne sc_retlongdouble
// movl 24(%ebp),%ecx
mov ecx, [ebp+24]
fstp QWORD PTR [ecx]
jmp sc_epilogue
jmp sc_retlongdouble // avoid warning about unused label
sc_retlongdouble:
cmp ecx, FFI_TYPE_LONGDOUBLE
jne sc_retint64
// Load %ecx with the pointer to storage for the return value
mov ecx, [ebp+24]
// fstpt (%ecx)
fstp QWORD PTR [ecx] /* XXX ??? */
jmp sc_epilogue
sc_retint64:
cmp ecx, FFI_TYPE_SINT64
jne sc_retstruct
// Load %ecx with the pointer to storage for the return value
mov ecx, [ebp+24]
mov [ecx+0], eax
mov [ecx+4], edx
sc_retstruct:
// Nothing to do!
sc_noretval:
sc_epilogue:
mov eax, esi
pop esi // NEW restore: must be preserved across function calls
mov esp, ebp
pop ebp
ret
}
}

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PUBLIC ffi_call_AMD64
EXTRN __chkstk:NEAR
EXTRN ffi_closure_SYSV:NEAR
_TEXT SEGMENT
;;; ffi_closure_OUTER will be called with these registers set:
;;; rax points to 'closure'
;;; r11 contains a bit mask that specifies which of the
;;; first four parameters are float or double
;;;
;;; It must move the parameters passed in registers to their stack location,
;;; call ffi_closure_SYSV for the actual work, then return the result.
;;;
ffi_closure_OUTER PROC FRAME
;; save actual arguments to their stack space.
test r11, 1
jne first_is_float
mov QWORD PTR [rsp+8], rcx
jmp second
first_is_float:
movlpd QWORD PTR [rsp+8], xmm0
second:
test r11, 2
jne second_is_float
mov QWORD PTR [rsp+16], rdx
jmp third
second_is_float:
movlpd QWORD PTR [rsp+16], xmm1
third:
test r11, 4
jne third_is_float
mov QWORD PTR [rsp+24], r8
jmp forth
third_is_float:
movlpd QWORD PTR [rsp+24], xmm2
forth:
test r11, 8
jne forth_is_float
mov QWORD PTR [rsp+32], r9
jmp done
forth_is_float:
movlpd QWORD PTR [rsp+32], xmm3
done:
.ALLOCSTACK 40
sub rsp, 40
.ENDPROLOG
mov rcx, rax ; context is first parameter
mov rdx, rsp ; stack is second parameter
add rdx, 40 ; correct our own area
mov rax, ffi_closure_SYSV
call rax ; call the real closure function
;; Here, code is missing that handles float return values
add rsp, 40
movd xmm0, rax ; In case the closure returned a float.
ret 0
ffi_closure_OUTER ENDP
;;; ffi_call_AMD64
stack$ = 0
prepfunc$ = 32
ecif$ = 40
bytes$ = 48
flags$ = 56
rvalue$ = 64
fn$ = 72
ffi_call_AMD64 PROC FRAME
mov QWORD PTR [rsp+32], r9
mov QWORD PTR [rsp+24], r8
mov QWORD PTR [rsp+16], rdx
mov QWORD PTR [rsp+8], rcx
.PUSHREG rbp
push rbp
.ALLOCSTACK 48
sub rsp, 48 ; 00000030H
.SETFRAME rbp, 32
lea rbp, QWORD PTR [rsp+32]
.ENDPROLOG
mov eax, DWORD PTR bytes$[rbp]
add rax, 15
and rax, -16
call __chkstk
sub rsp, rax
lea rax, QWORD PTR [rsp+32]
mov QWORD PTR stack$[rbp], rax
mov rdx, QWORD PTR ecif$[rbp]
mov rcx, QWORD PTR stack$[rbp]
call QWORD PTR prepfunc$[rbp]
mov rsp, QWORD PTR stack$[rbp]
movlpd xmm3, QWORD PTR [rsp+24]
movd r9, xmm3
movlpd xmm2, QWORD PTR [rsp+16]
movd r8, xmm2
movlpd xmm1, QWORD PTR [rsp+8]
movd rdx, xmm1
movlpd xmm0, QWORD PTR [rsp]
movd rcx, xmm0
call QWORD PTR fn$[rbp]
ret_int$:
cmp DWORD PTR flags$[rbp], 1 ; FFI_TYPE_INT
jne ret_float$
mov rcx, QWORD PTR rvalue$[rbp]
mov DWORD PTR [rcx], eax
jmp SHORT ret_nothing$
ret_float$:
cmp DWORD PTR flags$[rbp], 2 ; FFI_TYPE_FLOAT
jne SHORT ret_double$
mov rax, QWORD PTR rvalue$[rbp]
movlpd QWORD PTR [rax], xmm0
jmp SHORT ret_nothing$
ret_double$:
cmp DWORD PTR flags$[rbp], 3 ; FFI_TYPE_DOUBLE
jne SHORT ret_int64$
mov rax, QWORD PTR rvalue$[rbp]
movlpd QWORD PTR [rax], xmm0
jmp SHORT ret_nothing$
ret_int64$:
cmp DWORD PTR flags$[rbp], 12 ; FFI_TYPE_SINT64
jne ret_nothing$
mov rcx, QWORD PTR rvalue$[rbp]
mov QWORD PTR [rcx], rax
jmp SHORT ret_nothing$
ret_nothing$:
xor eax, eax
lea rsp, QWORD PTR [rbp+16]
pop rbp
ret 0
ffi_call_AMD64 ENDP
_TEXT ENDS
END

106
PCbuild/_ctypes.vcproj
View File

@ -1,7 +1,7 @@
<?xml version="1.0" encoding="Windows-1252"?> <?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject <VisualStudioProject
ProjectType="Visual C++" ProjectType="Visual C++"
Version="9,00" Version="9.00"
Name="_ctypes" Name="_ctypes"
ProjectGUID="{0E9791DB-593A-465F-98BC-681011311618}" ProjectGUID="{0E9791DB-593A-465F-98BC-681011311618}"
RootNamespace="_ctypes" RootNamespace="_ctypes"
@ -42,8 +42,7 @@
/> />
<Tool <Tool
Name="VCCLCompilerTool" Name="VCCLCompilerTool"
AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc;..\Modules\_ctypes\libffi\include;..\Modules\_ctypes\libffi\src\x86" AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc"
PreprocessorDefinitions="X86_WIN32"
/> />
<Tool <Tool
Name="VCManagedResourceCompilerTool" Name="VCManagedResourceCompilerTool"
@ -104,8 +103,7 @@
/> />
<Tool <Tool
Name="VCCLCompilerTool" Name="VCCLCompilerTool"
AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc;..\Modules\_ctypes\libffi\include;..\Modules\_ctypes\libffi\src\x86" AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc"
PreprocessorDefinitions="X86_WIN64"
/> />
<Tool <Tool
Name="VCManagedResourceCompilerTool" Name="VCManagedResourceCompilerTool"
@ -166,8 +164,7 @@
/> />
<Tool <Tool
Name="VCCLCompilerTool" Name="VCCLCompilerTool"
AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc;..\Modules\_ctypes\libffi\include;..\Modules\_ctypes\libffi\src\x86" AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc"
PreprocessorDefinitions="X86_WIN32"
/> />
<Tool <Tool
Name="VCManagedResourceCompilerTool" Name="VCManagedResourceCompilerTool"
@ -231,8 +228,7 @@
/> />
<Tool <Tool
Name="VCCLCompilerTool" Name="VCCLCompilerTool"
AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc;..\Modules\_ctypes\libffi\include;..\Modules\_ctypes\libffi\src\x86" AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc"
PreprocessorDefinitions="X86_WIN64"
/> />
<Tool <Tool
Name="VCManagedResourceCompilerTool" Name="VCManagedResourceCompilerTool"
@ -295,8 +291,7 @@
/> />
<Tool <Tool
Name="VCCLCompilerTool" Name="VCCLCompilerTool"
AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc;..\Modules\_ctypes\libffi\include;..\Modules\_ctypes\libffi\src\x86" AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc"
PreprocessorDefinitions="X86_WIN32"
/> />
<Tool <Tool
Name="VCManagedResourceCompilerTool" Name="VCManagedResourceCompilerTool"
@ -360,8 +355,7 @@
/> />
<Tool <Tool
Name="VCCLCompilerTool" Name="VCCLCompilerTool"
AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc;..\Modules\_ctypes\libffi\include;..\Modules\_ctypes\libffi\src\x86" AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc"
PreprocessorDefinitions="X86_WIN64"
/> />
<Tool <Tool
Name="VCManagedResourceCompilerTool" Name="VCManagedResourceCompilerTool"
@ -425,8 +419,7 @@
/> />
<Tool <Tool
Name="VCCLCompilerTool" Name="VCCLCompilerTool"
AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc;..\Modules\_ctypes\libffi\include;..\Modules\_ctypes\libffi\src\x86" AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc"
PreprocessorDefinitions="X86_WIN32"
/> />
<Tool <Tool
Name="VCManagedResourceCompilerTool" Name="VCManagedResourceCompilerTool"
@ -490,8 +483,7 @@
/> />
<Tool <Tool
Name="VCCLCompilerTool" Name="VCCLCompilerTool"
AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc;..\Modules\_ctypes\libffi\include;..\Modules\_ctypes\libffi\src\x86" AdditionalIncludeDirectories="..\Modules\_ctypes\libffi_msvc"
PreprocessorDefinitions="X86_WIN64"
/> />
<Tool <Tool
Name="VCManagedResourceCompilerTool" Name="VCManagedResourceCompilerTool"
@ -551,7 +543,7 @@
> >
</File> </File>
<File <File
RelativePath="..\Modules\_ctypes\libffi\include\ffi_common.h" RelativePath="..\Modules\_ctypes\libffi_msvc\ffi_common.h"
> >
</File> </File>
<File <File
@ -559,7 +551,7 @@
> >
</File> </File>
<File <File
RelativePath="..\Modules\_ctypes\libffi\src\x86\ffitarget.h" RelativePath="..\Modules\_ctypes\libffi_msvc\ffitarget.h"
> >
</File> </File>
</Filter> </Filter>
@ -583,23 +575,15 @@
> >
</File> </File>
<File <File
RelativePath="..\Modules\_ctypes\libffi\src\x86\ffi.c" RelativePath="..\Modules\_ctypes\libffi_msvc\ffi.c"
> >
<FileConfiguration
Name="Debug|x64"
>
<Tool
Name="VCCLCompilerTool"
PreprocessorDefinitions="X86_WIN64"
/>
</FileConfiguration>
</File> </File>
<File <File
RelativePath="..\Modules\_ctypes\malloc_closure.c" RelativePath="..\Modules\_ctypes\malloc_closure.c"
> >
</File> </File>
<File <File
RelativePath="..\Modules\_ctypes\libffi\src\prep_cif.c" RelativePath="..\Modules\_ctypes\libffi_msvc\prep_cif.c"
> >
</File> </File>
<File <File
@ -607,32 +591,14 @@
> >
</File> </File>
<File <File
RelativePath="..\Modules\_ctypes\libffi\src\x86\win32.S" RelativePath="..\Modules\_ctypes\libffi_msvc\win32.c"
> >
<FileConfiguration
Name="Debug|Win32"
>
<Tool
Name="VCCustomBuildTool"
CommandLine="cl /nologo /EP /I ..\Modules\_ctypes\libffi_msvc /I ..\Modules\_ctypes\libffi\src\x86 $(InputPath) &gt; $(IntDir)$(InputName).asm&#x0D;&#x0A;ml /nologo /Zi /c /Fo $(IntDir)$(InputName).obj $(IntDir)$(InputName).asm&#x0D;&#x0A;"
Outputs="$(IntDir)$(InputName).obj"
/>
</FileConfiguration>
<FileConfiguration <FileConfiguration
Name="Debug|x64" Name="Debug|x64"
ExcludedFromBuild="true" ExcludedFromBuild="true"
> >
<Tool <Tool
Name="VCCustomBuildTool" Name="VCCLCompilerTool"
/>
</FileConfiguration>
<FileConfiguration
Name="Release|Win32"
>
<Tool
Name="VCCustomBuildTool"
CommandLine="cl /nologo /EP /I ..\Modules\_ctypes\libffi_msvc /I ..\Modules\_ctypes\libffi\src\x86 $(InputPath) &gt; $(IntDir)$(InputName).asm&#x0D;&#x0A;ml /nologo /c /Fo $(IntDir)$(InputName).obj $(IntDir)$(InputName).asm&#x0D;&#x0A;"
Outputs="$(IntDir)$(InputName).obj"
/> />
</FileConfiguration> </FileConfiguration>
<FileConfiguration <FileConfiguration
@ -640,16 +606,7 @@
ExcludedFromBuild="true" ExcludedFromBuild="true"
> >
<Tool <Tool
Name="VCCustomBuildTool" Name="VCCLCompilerTool"
/>
</FileConfiguration>
<FileConfiguration
Name="PGInstrument|Win32"
>
<Tool
Name="VCCustomBuildTool"
CommandLine="cl /nologo /EP /I ..\Modules\_ctypes\libffi_msvc /I ..\Modules\_ctypes\libffi\src\x86 $(InputPath) &gt; $(IntDir)$(InputName).asm&#x0D;&#x0A;ml /nologo /Zi /c /Fo $(IntDir)$(InputName).obj $(IntDir)$(InputName).asm&#x0D;&#x0A;"
Outputs="$(IntDir)$(InputName).obj"
/> />
</FileConfiguration> </FileConfiguration>
<FileConfiguration <FileConfiguration
@ -657,16 +614,7 @@
ExcludedFromBuild="true" ExcludedFromBuild="true"
> >
<Tool <Tool
Name="VCCustomBuildTool" Name="VCCLCompilerTool"
/>
</FileConfiguration>
<FileConfiguration
Name="PGUpdate|Win32"
>
<Tool
Name="VCCustomBuildTool"
CommandLine="cl /nologo /EP /I ..\Modules\_ctypes\libffi_msvc /I ..\Modules\_ctypes\libffi\src\x86 $(InputPath) &gt; $(IntDir)$(InputName).asm&#x0D;&#x0A;ml /nologo /Zi /c /Fo $(IntDir)$(InputName).obj $(IntDir)$(InputName).asm&#x0D;&#x0A;"
Outputs="$(IntDir)$(InputName).obj"
/> />
</FileConfiguration> </FileConfiguration>
<FileConfiguration <FileConfiguration
@ -674,12 +622,12 @@
ExcludedFromBuild="true" ExcludedFromBuild="true"
> >
<Tool <Tool
Name="VCCustomBuildTool" Name="VCCLCompilerTool"
/> />
</FileConfiguration> </FileConfiguration>
</File> </File>
<File <File
RelativePath="..\Modules\_ctypes\libffi\src\x86\win64.S" RelativePath="..\Modules\_ctypes\libffi_msvc\win64.asm"
> >
<FileConfiguration <FileConfiguration
Name="Debug|Win32" Name="Debug|Win32"
@ -694,8 +642,8 @@
> >
<Tool <Tool
Name="VCCustomBuildTool" Name="VCCustomBuildTool"
CommandLine="cl /nologo /EP /I ..\Modules\_ctypes\libffi_msvc /I ..\Modules\_ctypes\libffi\src\x86 $(InputPath) &gt; $(IntDir)$(InputName).asm&#x0D;&#x0A;ml64 /Zi /nologo /c /Fo $(IntDir)$(InputName).obj $(IntDir)$(InputName).asm&#x0D;&#x0A;" CommandLine="ml64 /nologo /c /Zi /Fo &quot;$(IntDir)\win64.obj&quot; &quot;$(InputPath)&quot;&#x0D;&#x0A;"
Outputs="$(IntDir)$(InputName).obj" Outputs="$(IntDir)\win64.obj"
/> />
</FileConfiguration> </FileConfiguration>
<FileConfiguration <FileConfiguration
@ -711,8 +659,8 @@
> >
<Tool <Tool
Name="VCCustomBuildTool" Name="VCCustomBuildTool"
CommandLine="cl /nologo /EP /I ..\Modules\_ctypes\libffi_msvc /I ..\Modules\_ctypes\libffi\src\x86 $(InputPath) &gt; $(IntDir)$(InputName).asm&#x0D;&#x0A;ml64 /nologo /c /Fo $(IntDir)$(InputName).obj $(IntDir)$(InputName).asm&#x0D;&#x0A;" CommandLine="ml64 /nologo /c /Fo &quot;$(IntDir)\win64.obj&quot; &quot;$(InputPath)&quot;&#x0D;&#x0A;"
Outputs="$(IntDir)$(InputName).obj" Outputs="$(IntDir)\win64.obj"
/> />
</FileConfiguration> </FileConfiguration>
<FileConfiguration <FileConfiguration
@ -728,8 +676,8 @@
> >
<Tool <Tool
Name="VCCustomBuildTool" Name="VCCustomBuildTool"
CommandLine="cl /nologo /EP /I ..\Modules\_ctypes\libffi_msvc /I ..\Modules\_ctypes\libffi\src\x86 $(InputPath) &gt; $(IntDir)$(InputName).asm&#x0D;&#x0A;ml64 /nologo /c /Fo $(IntDir)$(InputName).obj $(IntDir)$(InputName).asm&#x0D;&#x0A;" CommandLine="ml64 /nologo /c /Fo &quot;$(IntDir)\win64.obj&quot; &quot;$(InputPath)&quot;&#x0D;&#x0A;"
Outputs="$(IntDir)$(InputName).obj" Outputs="$(IntDir)\win64.obj"
/> />
</FileConfiguration> </FileConfiguration>
<FileConfiguration <FileConfiguration
@ -745,8 +693,8 @@
> >
<Tool <Tool
Name="VCCustomBuildTool" Name="VCCustomBuildTool"
CommandLine="cl /nologo /EP /I ..\Modules\_ctypes\libffi_msvc /I ..\Modules\_ctypes\libffi\src\x86 $(InputPath) &gt; $(IntDir)$(InputName).asm&#x0D;&#x0A;ml64 /nologo /c /Fo $(IntDir)$(InputName).obj $(IntDir)$(InputName).asm&#x0D;&#x0A;" CommandLine="ml64 /nologo /c /Fo &quot;$(IntDir)\win64.obj&quot; &quot;$(InputPath)&quot;&#x0D;&#x0A;"
Outputs="$(IntDir)$(InputName).obj" Outputs="$(IntDir)\win64.obj"
/> />
</FileConfiguration> </FileConfiguration>
</File> </File>