As suggested by DJ

* fix me: avoid warning while handle ftruncate API

Signed-off-by: Prasad Nallani <prasad.nallani@intel.com>

* Update closures.c

*  libffi: added ARM64 support for Windows

    1. ported sysv.S to win64_armasm.S for armasm64 assembler
    2. added msvc_build folder for visual studio solution
    3. updated README.md for the same
    4. MSVC solution created with the changes, and below test suites are tested
       with test script written in python.

       libffi.bhaible
       libffi.call
    5. Basic functionality of above test suites are getting passed

Signed-off-by: ossdev07 <ossdev@puresoftware.com>

* Update README.md

* x86: Ensure _efi64 suffixed symbols are not exported

* x86: Ensure we do not export ffi_prep_cif_machdep

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>

* x86: Ensure we don't export ffi_call_win64, ffi_closure_win64, or ffi_go_closure_win64

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>

* closures: Silence a semantic warning

libffi/src/closures.c:175:23: This function declaration is not a prototype

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>

* aarch64: Ensure we don't export ffi_prep_cif_machdep

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>

* arm: Ensure we don't export ffi_prep_cif_machdep

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>

* aarch64, arm, x86: Add architecture preprocessor checks to support easier fat builds (eg: iOS)

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>

* x86: Silence some static analysis warnings

libffi/src/x86/ffi64.c:286:21: The left operand of '!=' is a garbage value due to array index out of bounds
libffi/src/x86/ffi64.c:297:22: The left operand of '!=' is a garbage value due to array index out of bounds

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>

* aarch: Use FFI_HIDDEN rather than .hidden

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>

* ffi.h: Don't advertise ffi_java_rvalue_to_raw, ffi_prep_java_raw_closure, and ffi_prep_java_raw_closure_loc when FFI_NATIVE_RAW_API is 0

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>

This needs a new function, ffi_data_to_code_pointer, to translate
from data pointers to code pointers.

Fixes issue #470.

When ftruncate() is used on a filesystem supporting sparse files,
space in the file is not actually allocated.  Then, when the file
is mmap'd and libffi writes to the mapping, SIGBUS is thrown to
the calling application.  Instead, always fully allocate the file
that will back writable maps.

Support NetBSD with mprotect.

  Added a tvOS target in Xcode project. Misc Xcode project cleanup.
  Fix macOS build target in Xcode project.

# Conflicts:
#	src/aarch64/ffi.c
#	src/x86/ffi64.c

Signed-off-by: Thomas Klausner <wiz@NetBSD.org>