libffi: Integrate build with GCC

1. Integrate with GCC build.
2. Disable static trampolines by default.
3. Support multilib.

	* Makefile.am (AUTOMAKE_OPTIONS): Add info-in-builddir.
	(ACLOCAL_AMFLAGS): Set to -I .. -I ../config.
	(SUBDIRS): Don't add doc.
	(TEXINFO_TEX): New.
	(MAKEINFOFLAGS): Likewise.
	(info_TEXINFOS): Likewise.
	(STAMP_GENINSRC): Likewise.
	(STAMP_BUILD_INFO): Likewise.
	(all-local): Likewise.
	(stamp-geninsrc): Likewise.
	(doc/libffi.info): Likewise.
	(stamp-build-info:): Likewise.
	(CLEANFILES): Likewise.
	(MAINTAINERCLEANFILES): Likewise.
	(AM_MAKEFLAGS): Likewise.
	(all-recursive): Likewise.
	(install-recursive): Likewise.
	(mostlyclean-recursive): Likewise.
	(clean-recursive): Likewise.
	(distclean-recursive): Likewise.
	(maintainer-clean-recursive): Likewise.
	(LTLDFLAGS): Replace libtool-ldflags with ../libtool-ldflags.
	(AM_CFLAGS): Add -g -fexceptions.
	(libffi.map-sun): Replace make_sunver.pl with
	../contrib/make_sunver.pl.
	(dist-hook): Removed.
	Include $(top_srcdir)/../multilib.am.
	* configure.ac: Add AM_ENABLE_MULTILIB.
	Remove the frv*-elf check.
	(AX_ENABLE_BUILDDIR): Removed.
	(AM_INIT_AUTOMAKE): Add [no-dist].
	Add --enable-generated-files-in-srcdir.
	(C_CONFIG_MACRO_DIR): Removed.
	(AX_COMPILER_VENDOR): Likewise.
	(AX_CC_MAXOPT): Likewise.
	(AX_CFLAGS_WARN_ALL): Likewise.
	Remove the GCC check.
	(SYMBOL_UNDERSCORE): Removed.
	(AX_CHECK_COMPILE_FLAG): Likewise.
	Remove --disable-docs.
	(ACX_CHECK_PROG_VER): Check makeinfo.
	(BUILD_DOCS): Updated.
	(exec-static-tramp): Don't enable use of static exec trampolines
	by default.
	Remove --disable-multi-os-directory.
	(GCC_WITH_TOOLEXECLIBDIR): New.
	Support cross host.
	Support --enable-multilib.
	* include/Makefile.am (nodist_include_HEADERS): Removed.
	(gcc_version): New.
	(toollibffidir): Likewise.
	(toollibffi_HEADERS): Likewise.
	* Makefile.in: Regenerate.
	(GCC_BASE_VER): New.
	(AC_CONFIG_FILES): Remove doc/Makefile.
	(AC_CONFIG_LINKS): New.
	* aclocal.m4: Likewise.
	* configure: Likewise.
	* fficonfig.h.in: Likewise.
	* mdate-sh: Likewise.
	* include/Makefile.in: Likewise.
	* man/Makefile.in: Likewise.
	* testsuite/Makefile.in: Likewise.

1 files changed, 227 insertions, 0 deletions

diff --git a/libffi/fficonfig.h.in b/libffi/fficonfig.h.in
new file mode 100644
index 00000000000..15aa54c03d8
--- /dev/null
+++ b/libffi/fficonfig.h.in
@@ -0,0 +1,227 @@
+/* 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. */
+#undef EH_FRAME_FLAGS
+
+/* Define this if you want extra debugging. */
+#undef FFI_DEBUG
+
+/* Define this if you want statically defined trampolines */
+#undef FFI_EXEC_STATIC_TRAMP
+
+/* 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. */
+#undef HAVE_ALLOCA
+
+/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix).
+   */
+#undef HAVE_ALLOCA_H
+
+/* Define if your assembler supports .cfi_* directives. */
+#undef HAVE_AS_CFI_PSEUDO_OP
+
+/* 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. */
+#undef HAVE_AS_X86_64_UNWIND_SECTION_TYPE
+
+/* 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 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. */
+#undef HAVE_MEMCPY
+
+/* Define to 1 if you have the `memfd_create' function. */
+#undef HAVE_MEMFD_CREATE
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the `mkostemp' function. */
+#undef HAVE_MKOSTEMP
+
+/* Define to 1 if you have the `mkstemp' function. */
+#undef HAVE_MKSTEMP
+
+/* 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 your compiler supports pointer authentication. */
+#undef HAVE_PTRAUTH
+
+/* Define if .eh_frame sections should be read-only. */
+#undef HAVE_RO_EH_FRAME
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/memfd.h> header file. */
+#undef HAVE_SYS_MEMFD_H
+
+/* Define to 1 if you have the <sys/mman.h> header file. */
+#undef HAVE_SYS_MMAN_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#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 1 if GNU symbol versioning is used for libatomic. */
+#undef LIBFFI_GNU_SYMBOL_VERSIONING
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#undef LT_OBJDIR
+
+/* 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. */
+#undef SIZEOF_DOUBLE
+
+/* The size of `long double', as computed by sizeof. */
+#undef SIZEOF_LONG_DOUBLE
+
+/* The size of `size_t', as computed by sizeof. */
+#undef SIZEOF_SIZE_T
+
+/* 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. */
+#undef STDC_HEADERS
+
+/* Define this if you are using Purify and want to suppress spurious messages.
+   */
+#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
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+#undef size_t
+
+
+#ifdef HAVE_HIDDEN_VISIBILITY_ATTRIBUTE
+#ifdef LIBFFI_ASM
+#ifdef __APPLE__
+#define FFI_HIDDEN(name) .private_extern name
+#else
+#define FFI_HIDDEN(name) .hidden name
+#endif
+#else
+#define FFI_HIDDEN __attribute__ ((visibility ("hidden")))
+#endif
+#else
+#ifdef LIBFFI_ASM
+#define FFI_HIDDEN(name)
+#else
+#define FFI_HIDDEN
+#endif
+#endif
+