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[Minios-devel] [UNIKRAFT/GCC PATCH 04/14] Port libffi library



From: Charalampos Mainas <charalampos.mainas@xxxxxxxxx>

This port also adds the generated ffi.h and fficonfig.h headers. Another option
would have been to generate them during the build.

Signed-off-by: Charalampos Mainas <charalampos.mainas@xxxxxxxxx>
Signed-off-by: Costin Lupu <costin.lupu@xxxxxxxxx>
---
 Config.uk                  |   6 +
 Makefile.uk                |  26 ++
 libffi/exportsyms.uk       |  21 ++
 libffi/include/ffi.h       | 509 +++++++++++++++++++++++++++++++++++++
 libffi/include/fficonfig.h | 206 +++++++++++++++
 5 files changed, 768 insertions(+)
 create mode 100644 libffi/exportsyms.uk
 create mode 100644 libffi/include/ffi.h
 create mode 100644 libffi/include/fficonfig.h

diff --git a/Config.uk b/Config.uk
index 4fc1311..ace072b 100644
--- a/Config.uk
+++ b/Config.uk
@@ -14,4 +14,10 @@ config LIBBACKTRACE
 if LIBBACKTRACE
 endif
 
+config LIBFFI
+       bool "libffi - A Portable Foreign Function Interface Library"
+       default n
+if LIBFFI
+endif
+
 endif
diff --git a/Makefile.uk b/Makefile.uk
index 49b6069..11f5a23 100644
--- a/Makefile.uk
+++ b/Makefile.uk
@@ -40,7 +40,9 @@
 # Library registration
 
################################################################################
 $(eval $(call addlib_s,libgcc,$(CONFIG_LIBGCC)))
+$(eval $(call addlib_s,libgo,$(CONFIG_LIBGO)))
 $(eval $(call addlib_s,libbacktrace,$(CONFIG_LIBBACKTRACE)))
+$(eval $(call addlib_s,libffi,$(CONFIG_LIBFFI)))
 
 
################################################################################
 # Original sources
@@ -56,7 +58,9 @@ $(eval $(call 
patch,libgcc,$(LIBGCC_PATCHDIR),$(LIBGCC_SUBDIR)))
 # Helpers
 
################################################################################
 LIBGCC_EXTRACTED = $(LIBGCC_ORIGIN)/gcc-$(LIBGCC_VERSION)
+LIBGO_EXTRACTED = $(LIBGCC_EXTRACTED)/libgo
 LIBBACKTRACE_EXTRACTED = $(LIBGCC_EXTRACTED)/libbacktrace
+LIBFFI_EXTRACTED = $(LIBGCC_EXTRACTED)/libffi
 
 
################################################################################
 # Library includes
@@ -90,3 +94,25 @@ LIBBACKTRACE_SRCS-y += $(LIBBACKTRACE_EXTRACTED)/mmap.c
 
 LIBBACKTRACE_EXPORTS = $(LIBGCC_BASE)/libbacktrace/exportsyms.uk
 
+################################################################################
+# libffi code
+################################################################################
+LIBFFI_COMMON_CINCLUDES-y = -I$(LIBGCC_BASE)/libffi/include \
+       -I$(LIBGCC_EXTRACTED)/include -I$(LIBFFI_EXTRACTED)/include
+LIBFFI_COMMON_CINCLUDES-$(CONFIG_ARCH_X86_64) += -I$(LIBFFI_EXTRACTED)/src/x86
+LIBFFI_ASINCLUDES-y = $(LIBFFI_COMMON_CINCLUDES-y)
+LIBFFI_CINCLUDES-y  = $(LIBFFI_COMMON_CINCLUDES-y)
+
+LIBFFI_CFLAGS-y += -DHAVE_CONFIG_H -fexceptions -Wall \
+       -Wno-sign-compare -Wno-unused-parameter -Wno-empty-body 
-Wno-implicit-fallthrough
+
+LIBFFI_SRCS-y += $(LIBFFI_EXTRACTED)/src/closures.c
+LIBFFI_SRCS-y += $(LIBFFI_EXTRACTED)/src/java_raw_api.c
+LIBFFI_SRCS-y += $(LIBFFI_EXTRACTED)/src/prep_cif.c
+LIBFFI_SRCS-y += $(LIBFFI_EXTRACTED)/src/raw_api.c
+LIBFFI_SRCS-y += $(LIBFFI_EXTRACTED)/src/types.c
+LIBFFI_SRCS-$(CONFIG_ARCH_X86_64) += $(LIBFFI_EXTRACTED)/src/x86/ffi64.c
+LIBFFI_SRCS-$(CONFIG_ARCH_X86_64) += $(LIBFFI_EXTRACTED)/src/x86/unix64.S
+
+LIBFFI_EXPORTS = $(LIBGCC_BASE)/libffi/exportsyms.uk
+
diff --git a/libffi/exportsyms.uk b/libffi/exportsyms.uk
new file mode 100644
index 0000000..c7640a6
--- /dev/null
+++ b/libffi/exportsyms.uk
@@ -0,0 +1,21 @@
+ffi_call
+ffi_call_go
+ffi_prep_cif
+ffi_prep_cif_var
+ffi_prep_go_closure
+ffi_type_complex_double
+ffi_type_complex_float
+ffi_type_complex_longdouble
+ffi_type_double
+ffi_type_float
+ffi_type_longdouble
+ffi_type_pointer
+ffi_type_sint16
+ffi_type_sint32
+ffi_type_sint64
+ffi_type_sint8
+ffi_type_uint16
+ffi_type_uint32
+ffi_type_uint64
+ffi_type_uint8
+ffi_type_void
diff --git a/libffi/include/ffi.h b/libffi/include/ffi.h
new file mode 100644
index 0000000..5e9c1df
--- /dev/null
+++ b/libffi/include/ffi.h
@@ -0,0 +1,509 @@
+/* -----------------------------------------------------------------*-C-*-
+   libffi 3.99999 - Copyright (c) 2011, 2014 Anthony Green
+                    - Copyright (c) 1996-2003, 2007, 2008 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 THE AUTHORS OR COPYRIGHT
+   HOLDERS 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.
+
+   ----------------------------------------------------------------------- */
+
+/* -------------------------------------------------------------------
+   The basic API is described in the README file.
+
+   The raw API is designed to bypass some of the argument packing
+   and unpacking on architectures for which it can be avoided.
+
+   The closure API allows interpreted functions to be packaged up
+   inside a C function pointer, so that they can be called as C functions,
+   with no understanding on the client side that they are interpreted.
+   It can also be used in other cases in which it is necessary to package
+   up a user specified parameter and a function pointer as a single
+   function pointer.
+
+   The closure API must be implemented in order to get its functionality,
+   e.g. for use by gij.  Routines are provided to emulate the raw API
+   if the underlying platform doesn't allow faster implementation.
+
+   More details on the raw and cloure API can be found in:
+
+   http://gcc.gnu.org/ml/java/1999-q3/msg00138.html
+
+   and
+
+   http://gcc.gnu.org/ml/java/1999-q3/msg00174.html
+   -------------------------------------------------------------------- */
+
+#ifndef LIBFFI_H
+#define LIBFFI_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Specify which architecture libffi is configured for. */
+#ifndef X86_64
+#define X86_64
+#endif
+
+/* ---- System configuration information --------------------------------- */
+
+#include <ffitarget.h>
+
+#ifndef LIBFFI_ASM
+
+#if defined(_MSC_VER) && !defined(__clang__)
+#define __attribute__(X)
+#endif
+
+#include <stddef.h>
+#include <limits.h>
+
+/* LONG_LONG_MAX is not always defined (not if STRICT_ANSI, for example).
+   But we can find it either under the correct ANSI name, or under GNU
+   C's internal name.  */
+
+#define FFI_64_BIT_MAX 9223372036854775807
+
+#ifdef LONG_LONG_MAX
+# define FFI_LONG_LONG_MAX LONG_LONG_MAX
+#else
+# ifdef LLONG_MAX
+#  define FFI_LONG_LONG_MAX LLONG_MAX
+#  ifdef _AIX52 /* or newer has C99 LLONG_MAX */
+#   undef FFI_64_BIT_MAX
+#   define FFI_64_BIT_MAX 9223372036854775807LL
+#  endif /* _AIX52 or newer */
+# else
+#  ifdef __GNUC__
+#   define FFI_LONG_LONG_MAX __LONG_LONG_MAX__
+#  endif
+#  ifdef _AIX /* AIX 5.1 and earlier have LONGLONG_MAX */
+#   ifndef __PPC64__
+#    if defined (__IBMC__) || defined (__IBMCPP__)
+#     define FFI_LONG_LONG_MAX LONGLONG_MAX
+#    endif
+#   endif /* __PPC64__ */
+#   undef  FFI_64_BIT_MAX
+#   define FFI_64_BIT_MAX 9223372036854775807LL
+#  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
+# define ffi_type_uchar                ffi_type_uint8
+# define ffi_type_schar                ffi_type_sint8
+#else
+ #error "char size not supported"
+#endif
+
+#if SHRT_MAX == 32767
+# define ffi_type_ushort       ffi_type_uint16
+# define ffi_type_sshort       ffi_type_sint16
+#elif SHRT_MAX == 2147483647
+# define ffi_type_ushort       ffi_type_uint32
+# define ffi_type_sshort       ffi_type_sint32
+#else
+ #error "short size not supported"
+#endif
+
+#if INT_MAX == 32767
+# define ffi_type_uint         ffi_type_uint16
+# define ffi_type_sint         ffi_type_sint16
+#elif INT_MAX == 2147483647
+# define ffi_type_uint         ffi_type_uint32
+# define ffi_type_sint         ffi_type_sint32
+#elif INT_MAX == 9223372036854775807
+# define ffi_type_uint         ffi_type_uint64
+# define ffi_type_sint         ffi_type_sint64
+#else
+ #error "int size not supported"
+#endif
+
+#if LONG_MAX == 2147483647
+# if FFI_LONG_LONG_MAX != FFI_64_BIT_MAX
+ #error "no 64-bit data type supported"
+# endif
+#elif LONG_MAX != FFI_64_BIT_MAX
+ #error "long size not supported"
+#endif
+
+#if LONG_MAX == 2147483647
+# define ffi_type_ulong        ffi_type_uint32
+# define ffi_type_slong        ffi_type_sint32
+#elif LONG_MAX == FFI_64_BIT_MAX
+# define ffi_type_ulong        ffi_type_uint64
+# define ffi_type_slong        ffi_type_sint64
+#else
+ #error "long size not supported"
+#endif
+
+/* Need minimal decorations for DLLs to works on Windows. */
+/* GCC has autoimport and autoexport.  Rely on Libtool to */
+/* help MSVC export from a DLL, but always declare data   */
+/* to be imported for MSVC clients.  This costs an extra  */
+/* indirection for MSVC clients using the static version  */
+/* of the library, but don't worry about that.  Besides,  */
+/* as a workaround, they can define FFI_BUILDING if they  */
+/* *know* they are going to link with the static library. */
+#if defined _MSC_VER && !defined FFI_BUILDING
+#define FFI_EXTERN extern __declspec(dllimport)
+#else
+#define FFI_EXTERN extern
+#endif
+
+/* These are defined in types.c */
+FFI_EXTERN ffi_type ffi_type_void;
+FFI_EXTERN ffi_type ffi_type_uint8;
+FFI_EXTERN ffi_type ffi_type_sint8;
+FFI_EXTERN ffi_type ffi_type_uint16;
+FFI_EXTERN ffi_type ffi_type_sint16;
+FFI_EXTERN ffi_type ffi_type_uint32;
+FFI_EXTERN ffi_type ffi_type_sint32;
+FFI_EXTERN ffi_type ffi_type_uint64;
+FFI_EXTERN ffi_type ffi_type_sint64;
+FFI_EXTERN ffi_type ffi_type_float;
+FFI_EXTERN ffi_type ffi_type_double;
+FFI_EXTERN ffi_type ffi_type_pointer;
+
+#if 1
+FFI_EXTERN ffi_type ffi_type_longdouble;
+#else
+#define ffi_type_longdouble ffi_type_double
+#endif
+
+#ifdef FFI_TARGET_HAS_COMPLEX_TYPE
+FFI_EXTERN ffi_type ffi_type_complex_float;
+FFI_EXTERN ffi_type ffi_type_complex_double;
+#if 1
+FFI_EXTERN ffi_type ffi_type_complex_longdouble;
+#else
+#define ffi_type_complex_longdouble ffi_type_complex_double
+#endif
+#endif
+#endif /* LIBFFI_HIDE_BASIC_TYPES */
+
+typedef enum {
+  FFI_OK = 0,
+  FFI_BAD_TYPEDEF,
+  FFI_BAD_ABI
+} ffi_status;
+
+typedef unsigned FFI_TYPE;
+
+typedef struct {
+  ffi_abi abi;
+  unsigned nargs;
+  ffi_type **arg_types;
+  ffi_type *rtype;
+  unsigned bytes;
+  unsigned flags;
+#ifdef FFI_EXTRA_CIF_FIELDS
+  FFI_EXTRA_CIF_FIELDS;
+#endif
+} ffi_cif;
+
+#if 0
+/* Used to adjust size/alignment of ffi types.  */
+void ffi_prep_types (ffi_abi abi);
+#endif
+
+/* Used internally, but overridden by some architectures */
+ffi_status ffi_prep_cif_core(ffi_cif *cif,
+                            ffi_abi abi,
+                            unsigned int isvariadic,
+                            unsigned int nfixedargs,
+                            unsigned int ntotalargs,
+                            ffi_type *rtype,
+                            ffi_type **atypes);
+
+/* ---- Definitions for the raw API -------------------------------------- */
+
+#ifndef FFI_SIZEOF_ARG
+# if LONG_MAX == 2147483647
+#  define FFI_SIZEOF_ARG        4
+# elif LONG_MAX == FFI_64_BIT_MAX
+#  define FFI_SIZEOF_ARG        8
+# endif
+#endif
+
+#ifndef FFI_SIZEOF_JAVA_RAW
+#  define FFI_SIZEOF_JAVA_RAW FFI_SIZEOF_ARG
+#endif
+
+typedef union {
+  ffi_sarg  sint;
+  ffi_arg   uint;
+  float            flt;
+  char      data[FFI_SIZEOF_ARG];
+  void*     ptr;
+} ffi_raw;
+
+#if FFI_SIZEOF_JAVA_RAW == 4 && FFI_SIZEOF_ARG == 8
+/* This is a special case for mips64/n32 ABI (and perhaps others) where
+   sizeof(void *) is 4 and FFI_SIZEOF_ARG is 8.  */
+typedef union {
+  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_raw_to_ptrarray (ffi_cif *cif, ffi_raw *raw, void **args);
+size_t ffi_raw_size (ffi_cif *cif);
+
+/* This is analogous to the raw API, except it uses Java parameter     */
+/* packing, even on 64-bit machines.  I.e. on 64-bit machines          */
+/* longs and doubles are followed by an empty 64-bit word.             */
+
+void ffi_java_raw_call (ffi_cif *cif,
+                       void (*fn)(void),
+                       void *rvalue,
+                       ffi_java_raw *avalue);
+
+void ffi_java_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_java_raw *raw);
+void ffi_java_raw_to_ptrarray (ffi_cif *cif, ffi_java_raw *raw, void **args);
+size_t ffi_java_raw_size (ffi_cif *cif);
+
+/* ---- Definitions for closures ----------------------------------------- */
+
+#if FFI_CLOSURES
+
+#ifdef _MSC_VER
+__declspec(align(8))
+#endif
+typedef struct {
+#if 0
+  void *trampoline_table;
+  void *trampoline_table_entry;
+#else
+  char tramp[FFI_TRAMPOLINE_SIZE];
+#endif
+  ffi_cif   *cif;
+  void     (*fun)(ffi_cif*,void*,void**,void*);
+  void      *user_data;
+#ifdef __GNUC__
+} ffi_closure __attribute__((aligned (8)));
+#else
+} ffi_closure;
+# ifdef __sgi
+#  pragma pack 0
+# endif
+#endif
+
+void *ffi_closure_alloc (size_t size, void **code);
+void ffi_closure_free (void *);
+
+ffi_status
+ffi_prep_closure (ffi_closure*,
+                 ffi_cif *,
+                 void (*fun)(ffi_cif*,void*,void**,void*),
+                 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);
+
+#ifdef __sgi
+# pragma pack 8
+#endif
+typedef struct {
+#if 0
+  void *trampoline_table;
+  void *trampoline_table_entry;
+#else
+  char tramp[FFI_TRAMPOLINE_SIZE];
+#endif
+  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_raw*,void*);
+  void      *user_data;
+
+} ffi_raw_closure;
+
+typedef struct {
+#if 0
+  void *trampoline_table;
+  void *trampoline_table_entry;
+#else
+  char tramp[FFI_TRAMPOLINE_SIZE];
+#endif
+
+  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_prep_raw_closure (ffi_raw_closure*,
+                     ffi_cif *cif,
+                     void (*fun)(ffi_cif*,void*,ffi_raw*,void*),
+                     void *user_data);
+
+ffi_status
+ffi_prep_raw_closure_loc (ffi_raw_closure*,
+                         ffi_cif *cif,
+                         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);
+
+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 */
+
+#if FFI_GO_CLOSURES
+
+typedef struct {
+  void      *tramp;
+  ffi_cif   *cif;
+  void     (*fun)(ffi_cif*,void*,void**,void*);
+} ffi_go_closure;
+
+ffi_status ffi_prep_go_closure (ffi_go_closure*, ffi_cif *,
+                               void (*fun)(ffi_cif*,void*,void**,void*));
+
+void ffi_call_go (ffi_cif *cif, void (*fn)(void), void *rvalue,
+                 void **avalue, void *closure);
+
+#endif /* FFI_GO_CLOSURES */
+
+/* ---- Public interface definition -------------------------------------- */
+
+ffi_status ffi_prep_cif(ffi_cif *cif,
+                       ffi_abi abi,
+                       unsigned int nargs,
+                       ffi_type *rtype,
+                       ffi_type **atypes);
+
+ffi_status ffi_prep_cif_var(ffi_cif *cif,
+                           ffi_abi abi,
+                           unsigned int nfixedargs,
+                           unsigned int ntotalargs,
+                           ffi_type *rtype,
+                           ffi_type **atypes);
+
+void ffi_call(ffi_cif *cif,
+             void (*fn)(void),
+             void *rvalue,
+             void **avalue);
+
+/* Useful for eliminating compiler warnings */
+#define FFI_FN(f) ((void (*)(void))f)
+
+/* ---- Definitions shared with assembly code ---------------------------- */
+
+#endif
+
+/* If these change, update src/mips/ffitarget.h. */
+#define FFI_TYPE_VOID       0    
+#define FFI_TYPE_INT        1
+#define FFI_TYPE_FLOAT      2    
+#define FFI_TYPE_DOUBLE     3
+#if 1
+#define FFI_TYPE_LONGDOUBLE 4
+#else
+#define FFI_TYPE_LONGDOUBLE FFI_TYPE_DOUBLE
+#endif
+#define FFI_TYPE_UINT8      5   
+#define FFI_TYPE_SINT8      6
+#define FFI_TYPE_UINT16     7 
+#define FFI_TYPE_SINT16     8
+#define FFI_TYPE_UINT32     9
+#define FFI_TYPE_SINT32     10
+#define FFI_TYPE_UINT64     11
+#define FFI_TYPE_SINT64     12
+#define FFI_TYPE_STRUCT     13
+#define FFI_TYPE_POINTER    14
+#define FFI_TYPE_COMPLEX    15
+
+/* This should always refer to the last type code (for sanity checks) */
+/* ??? Ideally, anyway.  There are assembly files that still depend
+   on this not including COMPLEX.  */
+#ifdef FFI_TARGET_HAS_COMPLEX_TYPE
+# define FFI_TYPE_LAST      FFI_TYPE_COMPLEX
+#else
+# define FFI_TYPE_LAST      FFI_TYPE_POINTER
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/libffi/include/fficonfig.h b/libffi/include/fficonfig.h
new file mode 100644
index 0000000..bf3f12c
--- /dev/null
+++ b/libffi/include/fficonfig.h
@@ -0,0 +1,206 @@
+/* fficonfig.h.  Generated from fficonfig.h.in by configure.  */
+/* fficonfig.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define if building universal (internal helper macro) */
+/* #undef AC_APPLE_UNIVERSAL_BUILD */
+
+/* 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'. */
+/* #undef C_ALLOCA */
+
+/* Define to the flags needed for the .section .eh_frame directive. */
+#define EH_FRAME_FLAGS "a"
+
+/* Define this if you want extra debugging. */
+/* #undef FFI_DEBUG */
+
+/* Cannot use PROT_EXEC on this target, so, we revert to alternative means */
+/* #undef FFI_EXEC_TRAMPOLINE_TABLE */
+
+/* Define this if you want to enable pax emulated trampolines */
+/* #undef FFI_MMAP_EXEC_EMUTRAMP_PAX */
+
+/* Cannot use malloc on this target, so, we revert to alternative means */
+/* #undef FFI_MMAP_EXEC_WRIT */
+
+/* Define this if you do not want support for the raw API. */
+/* #undef FFI_NO_RAW_API */
+
+/* Define this if 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 to 1 if you have <alloca.h> and it should be used (not on Ultrix).
+   */
+#define HAVE_ALLOCA_H 1
+
+/* Define if your assembler supports .cfi_* directives. */
+#define HAVE_AS_CFI_PSEUDO_OP 1
+
+/* Define if your assembler supports .register. */
+/* #undef HAVE_AS_REGISTER_PSEUDO_OP */
+
+/* Define if the compiler uses zarch features. */
+/* #undef HAVE_AS_S390_ZARCH */
+
+/* Define if your assembler and linker support unaligned PC relative relocs.
+   */
+/* #undef HAVE_AS_SPARC_UA_PCREL */
+
+/* Define if your assembler supports unwind section type. */
+#define HAVE_AS_X86_64_UNWIND_SECTION_TYPE 1
+
+/* Define if your assembler supports PC relative relocs. */
+#define HAVE_AS_X86_PCREL 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define HAVE_DLFCN_H 1
+
+/* Define if __attribute__((visibility("hidden"))) is supported. */
+#define HAVE_HIDDEN_VISIBILITY_ATTRIBUTE 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define if you have the long double type and it is bigger than a double */
+#define HAVE_LONG_DOUBLE 1
+
+/* Define if you support more than one size of the long double type */
+/* #undef HAVE_LONG_DOUBLE_VARIANT */
+
+/* Define to 1 if you have the `memcpy' function. */
+#define HAVE_MEMCPY 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the `mkostemp' function. */
+#define HAVE_MKOSTEMP 1
+
+/* Define to 1 if you have the `mmap' function. */
+#define HAVE_MMAP 1
+
+/* Define if mmap with MAP_ANON(YMOUS) works. */
+#define HAVE_MMAP_ANON 1
+
+/* Define if mmap of /dev/zero works. */
+#define HAVE_MMAP_DEV_ZERO 1
+
+/* Define if read-only mmap of a plain file works. */
+#define HAVE_MMAP_FILE 1
+
+/* Define if .eh_frame sections should be read-only. */
+#define HAVE_RO_EH_FRAME 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the <sys/mman.h> header file. */
+#define HAVE_SYS_MMAN_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#define LT_OBJDIR ".libs/"
+
+/* Define to 1 if your C compiler doesn't accept -c and -o together. */
+/* #undef NO_MINUS_C_MINUS_O */
+
+/* Name of package */
+#define PACKAGE "libffi"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "http://github.com/atgreen/libffi/issues";
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "libffi"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "libffi 3.99999"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "libffi"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "3.99999"
+
+/* The size of `double', as computed by sizeof. */
+#define SIZEOF_DOUBLE 8
+
+/* The size of `long double', as computed by sizeof. */
+#define SIZEOF_LONG_DOUBLE 16
+
+/* The size of `size_t', as computed by sizeof. */
+#define SIZEOF_SIZE_T 8
+
+/* 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 */
+
+/* Version number of package */
+#define VERSION "3.99999"
+
+/* 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
+
-- 
2.17.1


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