--- /dev/null
+Status
+======
+
+libffi-3.0.12 was released on XXXXXXX. Check the libffi web page for
+updates: <URL:http://sourceware.org/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
+===================
+
+Libffi has been ported to many different platforms.
+For specific configuration details and testing status, please
+refer to the wiki page here:
+
+ http://www.moxielogic.org/wiki/index.php?title=Libffi_3.0.11
+
+At the time of release, the following basic configurations have been
+tested:
+
+|-----------------+------------------|
+| Architecture | Operating System |
+|-----------------+------------------|
+| Alpha | Linux |
+| Alpha | Tru64 |
+| ARM | Linux |
+| ARM | iOS |
+| AVR32 | Linux |
+| Blackfin | uClinux |
+| HPPA | HPUX |
+| IA-64 | Linux |
+| M68K | FreeMiNT |
+| M68K | RTEMS |
+| MIPS | IRIX |
+| MIPS | Linux |
+| MIPS | RTEMS |
+| MIPS64 | Linux |
+| PowerPC | AMIGA |
+| PowerPC | Linux |
+| PowerPC | Mac OSX |
+| PowerPC | FreeBSD |
+| PowerPC64 | Linux |
+| S390 | Linux |
+| S390X | Linux |
+| SPARC | Linux |
+| SPARC | Solaris |
+| SPARC64 | Linux |
+| SPARC64 | FreeBSD |
+| TILE-Gx/TILEPro | Linux |
+| X86 | FreeBSD |
+| X86 | Interix |
+| X86 | kFreeBSD |
+| X86 | Linux |
+| X86 | Mac OSX |
+| X86 | OpenBSD |
+| X86 | OS/2 |
+| X86 | Solaris |
+| X86 | Windows/Cygwin |
+| X86 | Windows/MingW |
+| X86-64 | FreeBSD |
+| X86-64 | Linux |
+| X86-64 | Linux/x32 |
+| X86-64 | OpenBSD |
+| X86-64 | Windows/MingW |
+|-----------------+------------------|
+
+Please send additional platform test results to
+libffi-discuss@sourceware.org and feel free to update the wiki page
+above.
+
+Installing libffi
+=================
+
+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.
+
+It's also possible to build libffi on Windows platforms with
+Microsoft's Visual C++ compiler. In this case, use the msvcc.sh
+wrapper script during configuration like so:
+
+path/to/configure CC=path/to/msvcc.sh LD=link CPP=\"cl -nologo -EP\"
+
+For 64-bit Windows builds, use CC="path/to/msvcc.sh -m64".
+You may also need to specify --build appropriately. When building with MSVC
+under a MingW environment, you may need to remove the line in configure
+that sets 'fix_srcfile_path' to a 'cygpath' command. ('cygpath' is not
+present in MingW, and is not required when using MingW-style paths.)
+
+For iOS builds, the 'libffi.xcodeproj' Xcode project is available.
+
+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. You can ftp GNU make from prep.ai.mit.edu:/pub/gnu.
+
+To ensure that libffi is working as advertised, type "make check".
+This will require that you have DejaGNU installed.
+
+To install the library and header files, type "make install".
+
+
+History
+=======
+
+See the ChangeLog files for details.
+
+3.0.12 XXX-XX-XX
+ Add Blackfin support.
+ Add TILE-Gx/TILEPro support.
+
+3.0.11 Apr-11-12
+ Lots of build fixes.
+ Add Amiga newer MacOS support.
+ Add support for variadic functions (ffi_prep_cif_var).
+ Add Linux/x32 support.
+ Add thiscall, fastcall and MSVC cdecl support on Windows.
+ Add Amiga and newer MacOS support.
+ Add m68k FreeMiNT support.
+ Integration with iOS' xcode build tools.
+ Fix Octeon and MC68881 support.
+ Fix code pessimizations.
+ Lots of build fixes.
+
+3.0.10 Aug-23-11
+ Add support for Apple's iOS.
+ Add support for ARM VFP ABI.
+ Add RTEMS support for MIPS and M68K.
+ Fix instruction cache clearing problems on
+ ARM and SPARC.
+ Fix the N64 build on mips-sgi-irix6.5.
+ Enable builds with Microsoft's compiler.
+ Enable x86 builds with Oracle's Solaris compiler.
+ Fix support for calling code compiled with Oracle's Sparc
+ Solaris compiler.
+ Testsuite fixes for Tru64 Unix.
+ Additional platform support.
+
+3.0.9 Dec-31-09
+ Add AVR32 and win64 ports. Add ARM softfp support.
+ Many fixes for AIX, Solaris, HP-UX, *BSD.
+ Several PowerPC and x86-64 bug fixes.
+ Build DLL for windows.
+
+3.0.8 Dec-19-08
+ Add *BSD, BeOS, and PA-Linux support.
+
+3.0.7 Nov-11-08
+ Fix for ppc FreeBSD.
+ (thanks to Andreas Tobler)
+
+3.0.6 Jul-17-08
+ Fix for closures on sh.
+ Mark the sh/sh64 stack as non-executable.
+ (both thanks to Kaz Kojima)
+
+3.0.5 Apr-3-08
+ Fix libffi.pc file.
+ Fix #define ARM for IcedTea users.
+ Fix x86 closure bug.
+
+3.0.4 Feb-24-08
+ Fix x86 OpenBSD configury.
+
+3.0.3 Feb-22-08
+ Enable x86 OpenBSD thanks to Thomas Heller, and
+ x86-64 FreeBSD thanks to Björn König and Andreas Tobler.
+ Clean up test instruction in README.
+
+3.0.2 Feb-21-08
+ Improved x86 FreeBSD support.
+ Thanks to Björn König.
+
+3.0.1 Feb-15-08
+ Fix instruction cache flushing bug on MIPS.
+ Thanks to David Daney.
+
+3.0.0 Feb-15-08
+ Many changes, mostly thanks to the GCC project.
+ Cygnus Solutions is now Red Hat.
+
+ [10 years go by...]
+
+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 originally written by Anthony Green <green@redhat.com>.
+
+The developers of the GNU Compiler Collection project have made
+innumerable valuable contributions. See the ChangeLog file for
+details.
+
+Some of the ideas behind libffi were inspired by Gianni Mariani's free
+gencall library for Silicon Graphics machines.
+
+The closure mechanism was designed and implemented by Kresten Krab
+Thorup.
+
+Major processor architecture ports were contributed by the following
+developers:
+
+alpha Richard Henderson
+arm Raffaele Sena
+blackfin Alexandre Keunecke I. de Mendonca
+cris Simon Posnjak, Hans-Peter Nilsson
+frv Anthony Green
+ia64 Hans Boehm
+m32r Kazuhiro Inaoka
+m68k Andreas Schwab
+mips Anthony Green, Casey Marshall
+mips64 David Daney
+pa Randolph Chung, Dave Anglin, Andreas Tobler
+powerpc Geoffrey Keating, Andreas Tobler,
+ David Edelsohn, John Hornkvist
+powerpc64 Jakub Jelinek
+s390 Gerhard Tonn, Ulrich Weigand
+sh Kaz Kojima
+sh64 Kaz Kojima
+sparc Anthony Green, Gordon Irlam
+tile-gx/tilepro Walter Lee
+x86 Anthony Green, Jon Beniston
+x86-64 Bo Thorsen
+
+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, documentation and
+configuration help.
+
+Thanks to Jim Blandy, who provided some useful feedback on the libffi
+interface.
+
+Andreas Tobler has done a tremendous amount of work on the testsuite.
+
+Alex Oliva solved the executable page problem for SElinux.
+
+The list above is almost certainly incomplete and inaccurate. I'm
+happy to make corrections or additions upon request.
+
+If you have a problem, or have found a bug, please send a note to the
+author at green@moxielogic.com, or the project mailing list at
+libffi-discuss@sourceware.org.
--- /dev/null
+# Copyright (C) 2003, 2005, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
+
+proc load_gcc_lib { filename } {
+ global srcdir
+ load_file $srcdir/lib/$filename
+}
+
+load_lib dg.exp
+load_lib libgloss.exp
+load_gcc_lib target-libpath.exp
+load_gcc_lib wrapper.exp
+
+
+# Define libffi callbacks for dg.exp.
+
+proc libffi-dg-test-1 { target_compile prog do_what extra_tool_flags } {
+
+ # To get all \n in dg-output test strings to match printf output
+ # in a system that outputs it as \015\012 (i.e. not just \012), we
+ # need to change all \n into \r?\n. As there is no dejagnu flag
+ # or hook to do that, we simply change the text being tested.
+ # Unfortunately, we have to know that the variable is called
+ # dg-output-text and lives in the caller of libffi-dg-test, which
+ # is two calls up. Overriding proc dg-output would be longer and
+ # would necessarily have the same assumption.
+ upvar 2 dg-output-text output_match
+
+ if { [llength $output_match] > 1 } {
+ regsub -all "\n" [lindex $output_match 1] "\r?\n" x
+ set output_match [lreplace $output_match 1 1 $x]
+ }
+
+ # Set up the compiler flags, based on what we're going to do.
+
+ set options [list]
+ switch $do_what {
+ "compile" {
+ set compile_type "assembly"
+ set output_file "[file rootname [file tail $prog]].s"
+ }
+ "link" {
+ set compile_type "executable"
+ set output_file "[file rootname [file tail $prog]].exe"
+ # The following line is needed for targets like the i960 where
+ # the default output file is b.out. Sigh.
+ }
+ "run" {
+ set compile_type "executable"
+ # FIXME: "./" is to cope with "." not being in $PATH.
+ # Should this be handled elsewhere?
+ # YES.
+ set output_file "./[file rootname [file tail $prog]].exe"
+ # This is the only place where we care if an executable was
+ # created or not. If it was, dg.exp will try to run it.
+ remote_file build delete $output_file;
+ }
+ default {
+ perror "$do_what: not a valid dg-do keyword"
+ return ""
+ }
+ }
+
+ if { $extra_tool_flags != "" } {
+ lappend options "additional_flags=$extra_tool_flags"
+ }
+
+ set comp_output [libffi_target_compile "$prog" "$output_file" "$compile_type" $options];
+
+
+ return [list $comp_output $output_file]
+}
+
+
+proc libffi-dg-test { prog do_what extra_tool_flags } {
+ return [libffi-dg-test-1 target_compile $prog $do_what $extra_tool_flags]
+}
+
+proc libffi-init { args } {
+ global gluefile wrap_flags;
+ global srcdir
+ global blddirffi
+ global objdir
+ global TOOL_OPTIONS
+ global tool
+ global libffi_include
+ global libffi_link_flags
+ global tool_root_dir
+ global ld_library_path
+
+ set blddirffi [pwd]/..
+ verbose "libffi $blddirffi"
+
+ set gccdir [lookfor_file $tool_root_dir gcc/libgcc.a]
+ if {$gccdir != ""} {
+ set gccdir [file dirname $gccdir]
+ }
+ verbose "gccdir $gccdir"
+
+ set ld_library_path "."
+ append ld_library_path ":${gccdir}"
+
+ set compiler "${gccdir}/xgcc"
+ if { [is_remote host] == 0 && [which $compiler] != 0 } {
+ foreach i "[exec $compiler --print-multi-lib]" {
+ set mldir ""
+ regexp -- "\[a-z0-9=_/\.-\]*;" $i mldir
+ set mldir [string trimright $mldir "\;@"]
+ if { "$mldir" == "." } {
+ continue
+ }
+ if { [llength [glob -nocomplain ${gccdir}/${mldir}/libgcc_s*.so.*]] >= 1 } {
+ append ld_library_path ":${gccdir}/${mldir}"
+ }
+ }
+ }
+ # add the library path for libffi.
+ append ld_library_path ":${blddirffi}/.libs"
+
+ verbose "ld_library_path: $ld_library_path"
+
+ # Point to the Libffi headers in libffi.
+ set libffi_include "${blddirffi}/include"
+ verbose "libffi_include $libffi_include"
+
+ set libffi_dir "${blddirffi}/.libs"
+ verbose "libffi_dir $libffi_dir"
+ if { $libffi_dir != "" } {
+ set libffi_dir [file dirname ${libffi_dir}]
+ set libffi_link_flags "-L${libffi_dir}/.libs"
+ }
+
+ set_ld_library_path_env_vars
+ libffi_maybe_build_wrapper "${objdir}/testglue.o"
+}
+
+proc libffi_exit { } {
+ global gluefile;
+
+ if [info exists gluefile] {
+ file_on_build delete $gluefile;
+ unset gluefile;
+ }
+}
+
+proc libffi_target_compile { source dest type options } {
+ global gluefile wrap_flags;
+ global srcdir
+ global blddirffi
+ global TOOL_OPTIONS
+ global libffi_link_flags
+ global libffi_include
+ global target_triplet
+
+
+ if { [target_info needs_status_wrapper]!="" && [info exists gluefile] } {
+ lappend options "libs=${gluefile}"
+ lappend options "ldflags=$wrap_flags"
+ }
+
+ # TOOL_OPTIONS must come first, so that it doesn't override testcase
+ # specific options.
+ if [info exists TOOL_OPTIONS] {
+ lappend options [concat "additional_flags=$TOOL_OPTIONS" $options];
+ }
+
+ # search for ffi_mips.h in srcdir, too
+ lappend options "additional_flags=-I${libffi_include} -I${srcdir}/../include -I${libffi_include}/.."
+ lappend options "additional_flags=${libffi_link_flags}"
+
+ # Darwin needs a stack execution allowed flag.
+
+ if { [istarget "*-*-darwin9*"] || [istarget "*-*-darwin1*"]
+ || [istarget "*-*-darwin2*"] } {
+ lappend options "additional_flags=-Wl,-allow_stack_execute"
+ }
+
+ # If you're building the compiler with --prefix set to a place
+ # where it's not yet installed, then the linker won't be able to
+ # find the libgcc used by libffi.dylib. We could pass the
+ # -dylib_file option, but that's complicated, and it's much easier
+ # to just make the linker find libgcc using -L options.
+ if { [string match "*-*-darwin*" $target_triplet] } {
+ lappend options "libs= -shared-libgcc"
+ }
+
+ if { [string match "*-*-openbsd*" $target_triplet] } {
+ lappend options "libs= -lpthread"
+ }
+
+ lappend options "libs= -lffi"
+
+ verbose "options: $options"
+ return [target_compile $source $dest $type $options]
+}
+
+# Utility routines.
+
+#
+# search_for -- looks for a string match in a file
+#
+proc search_for { file pattern } {
+ set fd [open $file r]
+ while { [gets $fd cur_line]>=0 } {
+ if [string match "*$pattern*" $cur_line] then {
+ close $fd
+ return 1
+ }
+ }
+ close $fd
+ return 0
+}
+
+# Modified dg-runtest that can cycle through a list of optimization options
+# as c-torture does.
+proc libffi-dg-runtest { testcases default-extra-flags } {
+ global runtests
+
+ foreach test $testcases {
+ # If we're only testing specific files and this isn't one of
+ # them, skip it.
+ if ![runtest_file_p $runtests $test] {
+ continue
+ }
+
+ # Look for a loop within the source code - if we don't find one,
+ # don't pass -funroll[-all]-loops.
+ global torture_with_loops torture_without_loops
+ if [expr [search_for $test "for*("]+[search_for $test "while*("]] {
+ set option_list $torture_with_loops
+ } else {
+ set option_list $torture_without_loops
+ }
+
+ set nshort [file tail [file dirname $test]]/[file tail $test]
+
+ foreach flags $option_list {
+ verbose "Testing $nshort, $flags" 1
+ dg-test $test $flags ${default-extra-flags}
+ }
+ }
+}
+
+
+# Like check_conditional_xfail, but callable from a dg test.
+
+proc dg-xfail-if { args } {
+ set args [lreplace $args 0 0]
+ set selector "target [join [lindex $args 1]]"
+ if { [dg-process-target $selector] == "S" } {
+ global compiler_conditional_xfail_data
+ set compiler_conditional_xfail_data $args
+ }
+}
+
+proc check-flags { args } {
+
+ # The args are within another list; pull them out.
+ set args [lindex $args 0]
+
+ # The next two arguments are optional. If they were not specified,
+ # use the defaults.
+ if { [llength $args] == 2 } {
+ lappend $args [list "*"]
+ }
+ if { [llength $args] == 3 } {
+ lappend $args [list ""]
+ }
+
+ # If the option strings are the defaults, or the same as the
+ # defaults, there is no need to call check_conditional_xfail to
+ # compare them to the actual options.
+ if { [string compare [lindex $args 2] "*"] == 0
+ && [string compare [lindex $args 3] "" ] == 0 } {
+ set result 1
+ } else {
+ # The target list might be an effective-target keyword, so replace
+ # the original list with "*-*-*", since we already know it matches.
+ set result [check_conditional_xfail [lreplace $args 1 1 "*-*-*"]]
+ }
+
+ return $result
+}
+
+proc dg-skip-if { args } {
+ # Verify the number of arguments. The last two are optional.
+ set args [lreplace $args 0 0]
+ if { [llength $args] < 2 || [llength $args] > 4 } {
+ error "dg-skip-if 2: need 2, 3, or 4 arguments"
+ }
+
+ # Don't bother if we're already skipping the test.
+ upvar dg-do-what dg-do-what
+ if { [lindex ${dg-do-what} 1] == "N" } {
+ return
+ }
+
+ set selector [list target [lindex $args 1]]
+ if { [dg-process-target $selector] == "S" } {
+ if [check-flags $args] {
+ upvar dg-do-what dg-do-what
+ set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
+ }
+ }
+}
+
+# We need to make sure that additional_files and additional_sources
+# are both cleared out after every test. It is not enough to clear
+# them out *before* the next test run because gcc-target-compile gets
+# run directly from some .exp files (outside of any test). (Those
+# uses should eventually be eliminated.)
+
+# Because the DG framework doesn't provide a hook that is run at the
+# end of a test, we must replace dg-test with a wrapper.
+
+if { [info procs saved-dg-test] == [list] } {
+ rename dg-test saved-dg-test
+
+ proc dg-test { args } {
+ global additional_files
+ global additional_sources
+ global errorInfo
+
+ if { [ catch { eval saved-dg-test $args } errmsg ] } {
+ set saved_info $errorInfo
+ set additional_files ""
+ set additional_sources ""
+ error $errmsg $saved_info
+ }
+ set additional_files ""
+ set additional_sources ""
+ }
+}
+
+# Local Variables:
+# tcl-indent-level:4
+# End:
mingw-check-fix
whitespace-fix
tile
+aarch64
|-----------------+------------------|
| Architecture | Operating System |
|-----------------+------------------|
+| AArch64 | Linux |
| Alpha | Linux |
| Alpha | Tru64 |
| ARM | Linux |
3.0.12 XXX-XX-XX
Add Blackfin support.
Add TILE-Gx/TILEPro support.
+ Add AArch64 support.
3.0.11 Apr-11-12
Lots of build fixes.
Major processor architecture ports were contributed by the following
developers:
+aarch64 Marcus Shawcroft, James Greenhalgh
alpha Richard Henderson
arm Raffaele Sena
blackfin Alexandre Keunecke I. de Mendonca
--- /dev/null
+Index: libffi/README
+===================================================================
+--- libffi.orig/README
++++ libffi/README
+@@ -51,6 +51,7 @@ tested:
+ |-----------------+------------------|
+ | Architecture | Operating System |
+ |-----------------+------------------|
++| AArch64 | Linux |
+ | Alpha | Linux |
+ | Alpha | Tru64 |
+ | ARM | Linux |
+@@ -152,6 +153,7 @@ See the ChangeLog files for details.
+ 3.0.12 XXX-XX-XX
+ Add Blackfin support.
+ Add TILE-Gx/TILEPro support.
++ Add AArch64 support.
+
+ 3.0.11 Apr-11-12
+ Lots of build fixes.
+@@ -323,6 +325,7 @@ Thorup.
+ Major processor architecture ports were contributed by the following
+ developers:
+
++aarch64 Marcus Shawcroft, James Greenhalgh
+ alpha Richard Henderson
+ arm Raffaele Sena
+ blackfin Alexandre Keunecke I. de Mendonca
+Index: libffi/src/aarch64/ffi.c
+===================================================================
+--- /dev/null
++++ libffi/src/aarch64/ffi.c
+@@ -0,0 +1,1076 @@
++/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd.
++
++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. */
++
++#include <stdio.h>
++
++#include <ffi.h>
++#include <ffi_common.h>
++
++#include <stdlib.h>
++
++/* Stack alignment requirement in bytes */
++#define AARCH64_STACK_ALIGN 16
++
++#define N_X_ARG_REG 8
++#define N_V_ARG_REG 8
++
++#define AARCH64_FFI_WITH_V (1 << AARCH64_FFI_WITH_V_BIT)
++
++union _d
++{
++ UINT64 d;
++ UINT32 s[2];
++};
++
++struct call_context
++{
++ UINT64 x [AARCH64_N_XREG];
++ struct
++ {
++ union _d d[2];
++ } v [AARCH64_N_VREG];
++};
++
++static void *
++get_x_addr (struct call_context *context, unsigned n)
++{
++ return &context->x[n];
++}
++
++static void *
++get_s_addr (struct call_context *context, unsigned n)
++{
++#if defined __AARCH64EB__
++ return &context->v[n].d[1].s[1];
++#else
++ return &context->v[n].d[0].s[0];
++#endif
++}
++
++static void *
++get_d_addr (struct call_context *context, unsigned n)
++{
++#if defined __AARCH64EB__
++ return &context->v[n].d[1];
++#else
++ return &context->v[n].d[0];
++#endif
++}
++
++static void *
++get_v_addr (struct call_context *context, unsigned n)
++{
++ return &context->v[n];
++}
++
++/* Return the memory location at which a basic type would reside
++ were it to have been stored in register n. */
++
++static void *
++get_basic_type_addr (unsigned short type, struct call_context *context,
++ unsigned n)
++{
++ switch (type)
++ {
++ case FFI_TYPE_FLOAT:
++ return get_s_addr (context, n);
++ case FFI_TYPE_DOUBLE:
++ return get_d_addr (context, n);
++ case FFI_TYPE_LONGDOUBLE:
++ return get_v_addr (context, n);
++ case FFI_TYPE_UINT8:
++ case FFI_TYPE_SINT8:
++ case FFI_TYPE_UINT16:
++ case FFI_TYPE_SINT16:
++ case FFI_TYPE_UINT32:
++ case FFI_TYPE_SINT32:
++ case FFI_TYPE_INT:
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_UINT64:
++ case FFI_TYPE_SINT64:
++ return get_x_addr (context, n);
++ default:
++ FFI_ASSERT (0);
++ return NULL;
++ }
++}
++
++/* Return the alignment width for each of the basic types. */
++
++static size_t
++get_basic_type_alignment (unsigned short type)
++{
++ switch (type)
++ {
++ case FFI_TYPE_FLOAT:
++ case FFI_TYPE_DOUBLE:
++ return sizeof (UINT64);
++ case FFI_TYPE_LONGDOUBLE:
++ return sizeof (long double);
++ case FFI_TYPE_UINT8:
++ case FFI_TYPE_SINT8:
++ case FFI_TYPE_UINT16:
++ case FFI_TYPE_SINT16:
++ case FFI_TYPE_UINT32:
++ case FFI_TYPE_INT:
++ case FFI_TYPE_SINT32:
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_UINT64:
++ case FFI_TYPE_SINT64:
++ return sizeof (UINT64);
++
++ default:
++ FFI_ASSERT (0);
++ return 0;
++ }
++}
++
++/* Return the size in bytes for each of the basic types. */
++
++static size_t
++get_basic_type_size (unsigned short type)
++{
++ switch (type)
++ {
++ case FFI_TYPE_FLOAT:
++ return sizeof (UINT32);
++ case FFI_TYPE_DOUBLE:
++ return sizeof (UINT64);
++ case FFI_TYPE_LONGDOUBLE:
++ return sizeof (long double);
++ case FFI_TYPE_UINT8:
++ return sizeof (UINT8);
++ case FFI_TYPE_SINT8:
++ return sizeof (SINT8);
++ case FFI_TYPE_UINT16:
++ return sizeof (UINT16);
++ case FFI_TYPE_SINT16:
++ return sizeof (SINT16);
++ case FFI_TYPE_UINT32:
++ return sizeof (UINT32);
++ case FFI_TYPE_INT:
++ case FFI_TYPE_SINT32:
++ return sizeof (SINT32);
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_UINT64:
++ return sizeof (UINT64);
++ case FFI_TYPE_SINT64:
++ return sizeof (SINT64);
++
++ default:
++ FFI_ASSERT (0);
++ return 0;
++ }
++}
++
++extern void
++ffi_call_SYSV (unsigned (*)(struct call_context *context, unsigned char *,
++ extended_cif *),
++ struct call_context *context,
++ extended_cif *,
++ unsigned,
++ void (*fn)(void));
++
++extern void
++ffi_closure_SYSV (ffi_closure *);
++
++/* Test for an FFI floating point representation. */
++
++static unsigned
++is_floating_type (unsigned short type)
++{
++ return (type == FFI_TYPE_FLOAT || type == FFI_TYPE_DOUBLE
++ || type == FFI_TYPE_LONGDOUBLE);
++}
++
++/* Test for a homogeneous structure. */
++
++static unsigned short
++get_homogeneous_type (ffi_type *ty)
++{
++ if (ty->type == FFI_TYPE_STRUCT && ty->elements)
++ {
++ unsigned i;
++ unsigned short candidate_type
++ = get_homogeneous_type (ty->elements[0]);
++ for (i =1; ty->elements[i]; i++)
++ {
++ unsigned short iteration_type = 0;
++ /* If we have a nested struct, we must find its homogeneous type.
++ If that fits with our candidate type, we are still
++ homogeneous. */
++ if (ty->elements[i]->type == FFI_TYPE_STRUCT
++ && ty->elements[i]->elements)
++ {
++ iteration_type = get_homogeneous_type (ty->elements[i]);
++ }
++ else
++ {
++ iteration_type = ty->elements[i]->type;
++ }
++
++ /* If we are not homogeneous, return FFI_TYPE_STRUCT. */
++ if (candidate_type != iteration_type)
++ return FFI_TYPE_STRUCT;
++ }
++ return candidate_type;
++ }
++
++ /* Base case, we have no more levels of nesting, so we
++ are a basic type, and so, trivially homogeneous in that type. */
++ return ty->type;
++}
++
++/* Determine the number of elements within a STRUCT.
++
++ Note, we must handle nested structs.
++
++ If ty is not a STRUCT this function will return 0. */
++
++static unsigned
++element_count (ffi_type *ty)
++{
++ if (ty->type == FFI_TYPE_STRUCT && ty->elements)
++ {
++ unsigned n;
++ unsigned elems = 0;
++ for (n = 0; ty->elements[n]; n++)
++ {
++ if (ty->elements[n]->type == FFI_TYPE_STRUCT
++ && ty->elements[n]->elements)
++ elems += element_count (ty->elements[n]);
++ else
++ elems++;
++ }
++ return elems;
++ }
++ return 0;
++}
++
++/* Test for a homogeneous floating point aggregate.
++
++ A homogeneous floating point aggregate is a homogeneous aggregate of
++ a half- single- or double- precision floating point type with one
++ to four elements. Note that this includes nested structs of the
++ basic type. */
++
++static int
++is_hfa (ffi_type *ty)
++{
++ if (ty->type == FFI_TYPE_STRUCT
++ && ty->elements[0]
++ && is_floating_type (get_homogeneous_type (ty)))
++ {
++ unsigned n = element_count (ty);
++ return n >= 1 && n <= 4;
++ }
++ return 0;
++}
++
++/* Test if an ffi_type is a candidate for passing in a register.
++
++ This test does not check that sufficient registers of the
++ appropriate class are actually available, merely that IFF
++ sufficient registers are available then the argument will be passed
++ in register(s).
++
++ Note that an ffi_type that is deemed to be a register candidate
++ will always be returned in registers.
++
++ Returns 1 if a register candidate else 0. */
++
++static int
++is_register_candidate (ffi_type *ty)
++{
++ switch (ty->type)
++ {
++ case FFI_TYPE_VOID:
++ case FFI_TYPE_FLOAT:
++ case FFI_TYPE_DOUBLE:
++ case FFI_TYPE_LONGDOUBLE:
++ case FFI_TYPE_UINT8:
++ case FFI_TYPE_UINT16:
++ case FFI_TYPE_UINT32:
++ case FFI_TYPE_UINT64:
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_SINT8:
++ case FFI_TYPE_SINT16:
++ case FFI_TYPE_SINT32:
++ case FFI_TYPE_INT:
++ case FFI_TYPE_SINT64:
++ return 1;
++
++ case FFI_TYPE_STRUCT:
++ if (is_hfa (ty))
++ {
++ return 1;
++ }
++ else if (ty->size > 16)
++ {
++ /* Too large. Will be replaced with a pointer to memory. The
++ pointer MAY be passed in a register, but the value will
++ not. This test specifically fails since the argument will
++ never be passed by value in registers. */
++ return 0;
++ }
++ else
++ {
++ /* Might be passed in registers depending on the number of
++ registers required. */
++ return (ty->size + 7) / 8 < N_X_ARG_REG;
++ }
++ break;
++
++ default:
++ FFI_ASSERT (0);
++ break;
++ }
++
++ return 0;
++}
++
++/* Test if an ffi_type argument or result is a candidate for a vector
++ register. */
++
++static int
++is_v_register_candidate (ffi_type *ty)
++{
++ return is_floating_type (ty->type)
++ || (ty->type == FFI_TYPE_STRUCT && is_hfa (ty));
++}
++
++/* Representation of the procedure call argument marshalling
++ state.
++
++ The terse state variable names match the names used in the AARCH64
++ PCS. */
++
++struct arg_state
++{
++ unsigned ngrn; /* Next general-purpose register number. */
++ unsigned nsrn; /* Next vector register number. */
++ unsigned nsaa; /* Next stack offset. */
++};
++
++/* Initialize a procedure call argument marshalling state. */
++static void
++arg_init (struct arg_state *state, unsigned call_frame_size)
++{
++ state->ngrn = 0;
++ state->nsrn = 0;
++ state->nsaa = 0;
++}
++
++/* Return the number of available consecutive core argument
++ registers. */
++
++static unsigned
++available_x (struct arg_state *state)
++{
++ return N_X_ARG_REG - state->ngrn;
++}
++
++/* Return the number of available consecutive vector argument
++ registers. */
++
++static unsigned
++available_v (struct arg_state *state)
++{
++ return N_V_ARG_REG - state->nsrn;
++}
++
++static void *
++allocate_to_x (struct call_context *context, struct arg_state *state)
++{
++ FFI_ASSERT (state->ngrn < N_X_ARG_REG)
++ return get_x_addr (context, (state->ngrn)++);
++}
++
++static void *
++allocate_to_s (struct call_context *context, struct arg_state *state)
++{
++ FFI_ASSERT (state->nsrn < N_V_ARG_REG)
++ return get_s_addr (context, (state->nsrn)++);
++}
++
++static void *
++allocate_to_d (struct call_context *context, struct arg_state *state)
++{
++ FFI_ASSERT (state->nsrn < N_V_ARG_REG)
++ return get_d_addr (context, (state->nsrn)++);
++}
++
++static void *
++allocate_to_v (struct call_context *context, struct arg_state *state)
++{
++ FFI_ASSERT (state->nsrn < N_V_ARG_REG)
++ return get_v_addr (context, (state->nsrn)++);
++}
++
++/* Allocate an aligned slot on the stack and return a pointer to it. */
++static void *
++allocate_to_stack (struct arg_state *state, void *stack, unsigned alignment,
++ unsigned size)
++{
++ void *allocation;
++
++ /* Round up the NSAA to the larger of 8 or the natural
++ alignment of the argument's type. */
++ state->nsaa = ALIGN (state->nsaa, alignment);
++ state->nsaa = ALIGN (state->nsaa, alignment);
++ state->nsaa = ALIGN (state->nsaa, 8);
++
++ allocation = stack + state->nsaa;
++
++ state->nsaa += size;
++ return allocation;
++}
++
++static void
++copy_basic_type (void *dest, void *source, unsigned short type)
++{
++ /* This is neccessary to ensure that basic types are copied
++ sign extended to 64-bits as libffi expects. */
++ switch (type)
++ {
++ case FFI_TYPE_FLOAT:
++ *(float *) dest = *(float *) source;
++ break;
++ case FFI_TYPE_DOUBLE:
++ *(double *) dest = *(double *) source;
++ break;
++ case FFI_TYPE_LONGDOUBLE:
++ *(long double *) dest = *(long double *) source;
++ break;
++ case FFI_TYPE_UINT8:
++ *(ffi_arg *) dest = *(UINT8 *) source;
++ break;
++ case FFI_TYPE_SINT8:
++ *(ffi_sarg *) dest = *(SINT8 *) source;
++ break;
++ case FFI_TYPE_UINT16:
++ *(ffi_arg *) dest = *(UINT16 *) source;
++ break;
++ case FFI_TYPE_SINT16:
++ *(ffi_sarg *) dest = *(SINT16 *) source;
++ break;
++ case FFI_TYPE_UINT32:
++ *(ffi_arg *) dest = *(UINT32 *) source;
++ break;
++ case FFI_TYPE_INT:
++ case FFI_TYPE_SINT32:
++ *(ffi_sarg *) dest = *(SINT32 *) source;
++ break;
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_UINT64:
++ *(ffi_arg *) dest = *(UINT64 *) source;
++ break;
++ case FFI_TYPE_SINT64:
++ *(ffi_sarg *) dest = *(SINT64 *) source;
++ break;
++
++ default:
++ FFI_ASSERT (0);
++ }
++}
++
++static void
++copy_hfa_to_reg_or_stack (void *memory,
++ ffi_type *ty,
++ struct call_context *context,
++ unsigned char *stack,
++ struct arg_state *state)
++{
++ unsigned elems = element_count (ty);
++ if (available_v (state) < elems)
++ {
++ /* There are insufficient V registers. Further V register allocations
++ are prevented, the NSAA is adjusted (by allocate_to_stack ())
++ and the argument is copied to memory at the adjusted NSAA. */
++ state->nsrn = N_V_ARG_REG;
++ memcpy (allocate_to_stack (state, stack, ty->alignment, ty->size),
++ memory,
++ ty->size);
++ }
++ else
++ {
++ int i;
++ unsigned short type = get_homogeneous_type (ty);
++ unsigned elems = element_count (ty);
++ for (i = 0; i < elems; i++)
++ {
++ void *reg = allocate_to_v (context, state);
++ copy_basic_type (reg, memory, type);
++ memory += get_basic_type_size (type);
++ }
++ }
++}
++
++/* Either allocate an appropriate register for the argument type, or if
++ none are available, allocate a stack slot and return a pointer
++ to the allocated space. */
++
++static void *
++allocate_to_register_or_stack (struct call_context *context,
++ unsigned char *stack,
++ struct arg_state *state,
++ unsigned short type)
++{
++ size_t alignment = get_basic_type_alignment (type);
++ size_t size = alignment;
++ switch (type)
++ {
++ case FFI_TYPE_FLOAT:
++ /* This is the only case for which the allocated stack size
++ should not match the alignment of the type. */
++ size = sizeof (UINT32);
++ /* Fall through. */
++ case FFI_TYPE_DOUBLE:
++ if (state->nsrn < N_V_ARG_REG)
++ return allocate_to_d (context, state);
++ state->nsrn = N_V_ARG_REG;
++ break;
++ case FFI_TYPE_LONGDOUBLE:
++ if (state->nsrn < N_V_ARG_REG)
++ return allocate_to_v (context, state);
++ state->nsrn = N_V_ARG_REG;
++ break;
++ case FFI_TYPE_UINT8:
++ case FFI_TYPE_SINT8:
++ case FFI_TYPE_UINT16:
++ case FFI_TYPE_SINT16:
++ case FFI_TYPE_UINT32:
++ case FFI_TYPE_SINT32:
++ case FFI_TYPE_INT:
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_UINT64:
++ case FFI_TYPE_SINT64:
++ if (state->ngrn < N_X_ARG_REG)
++ return allocate_to_x (context, state);
++ state->ngrn = N_X_ARG_REG;
++ break;
++ default:
++ FFI_ASSERT (0);
++ }
++
++ return allocate_to_stack (state, stack, alignment, size);
++}
++
++/* Copy a value to an appropriate register, or if none are
++ available, to the stack. */
++
++static void
++copy_to_register_or_stack (struct call_context *context,
++ unsigned char *stack,
++ struct arg_state *state,
++ void *value,
++ unsigned short type)
++{
++ copy_basic_type (
++ allocate_to_register_or_stack (context, stack, state, type),
++ value,
++ type);
++}
++
++/* Marshall the arguments from FFI representation to procedure call
++ context and stack. */
++
++static unsigned
++aarch64_prep_args (struct call_context *context, unsigned char *stack,
++ extended_cif *ecif)
++{
++ int i;
++ struct arg_state state;
++
++ arg_init (&state, ALIGN(ecif->cif->bytes, 16));
++
++ for (i = 0; i < ecif->cif->nargs; i++)
++ {
++ ffi_type *ty = ecif->cif->arg_types[i];
++ switch (ty->type)
++ {
++ case FFI_TYPE_VOID:
++ FFI_ASSERT (0);
++ break;
++
++ /* If the argument is a basic type the argument is allocated to an
++ appropriate register, or if none are available, to the stack. */
++ case FFI_TYPE_FLOAT:
++ case FFI_TYPE_DOUBLE:
++ case FFI_TYPE_LONGDOUBLE:
++ case FFI_TYPE_UINT8:
++ case FFI_TYPE_SINT8:
++ case FFI_TYPE_UINT16:
++ case FFI_TYPE_SINT16:
++ case FFI_TYPE_UINT32:
++ case FFI_TYPE_INT:
++ case FFI_TYPE_SINT32:
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_UINT64:
++ case FFI_TYPE_SINT64:
++ copy_to_register_or_stack (context, stack, &state,
++ ecif->avalue[i], ty->type);
++ break;
++
++ case FFI_TYPE_STRUCT:
++ if (is_hfa (ty))
++ {
++ copy_hfa_to_reg_or_stack (ecif->avalue[i], ty, context,
++ stack, &state);
++ }
++ else if (ty->size > 16)
++ {
++ /* If the argument is a composite type that is larger than 16
++ bytes, then the argument has been copied to memory, and
++ the argument is replaced by a pointer to the copy. */
++
++ copy_to_register_or_stack (context, stack, &state,
++ &(ecif->avalue[i]), FFI_TYPE_POINTER);
++ }
++ else if (available_x (&state) >= (ty->size + 7) / 8)
++ {
++ /* If the argument is a composite type and the size in
++ double-words is not more than the number of available
++ X registers, then the argument is copied into consecutive
++ X registers. */
++ int j;
++ for (j = 0; j < (ty->size + 7) / 8; j++)
++ {
++ memcpy (allocate_to_x (context, &state),
++ &(((UINT64 *) ecif->avalue[i])[j]),
++ sizeof (UINT64));
++ }
++ }
++ else
++ {
++ /* Otherwise, there are insufficient X registers. Further X
++ register allocations are prevented, the NSAA is adjusted
++ (by allocate_to_stack ()) and the argument is copied to
++ memory at the adjusted NSAA. */
++ state.ngrn = N_X_ARG_REG;
++
++ memcpy (allocate_to_stack (&state, stack, ty->alignment,
++ ty->size), ecif->avalue + i, ty->size);
++ }
++ break;
++
++ default:
++ FFI_ASSERT (0);
++ break;
++ }
++ }
++
++ return ecif->cif->aarch64_flags;
++}
++
++ffi_status
++ffi_prep_cif_machdep (ffi_cif *cif)
++{
++ /* Round the stack up to a multiple of the stack alignment requirement. */
++ cif->bytes =
++ (cif->bytes + (AARCH64_STACK_ALIGN - 1)) & ~ (AARCH64_STACK_ALIGN - 1);
++
++ /* Initialize our flags. We are interested if this CIF will touch a
++ vector register, if so we will enable context save and load to
++ those registers, otherwise not. This is intended to be friendly
++ to lazy float context switching in the kernel. */
++ cif->aarch64_flags = 0;
++
++ if (is_v_register_candidate (cif->rtype))
++ {
++ cif->aarch64_flags |= AARCH64_FFI_WITH_V;
++ }
++ else
++ {
++ int i;
++ for (i = 0; i < cif->nargs; i++)
++ if (is_v_register_candidate (cif->arg_types[i]))
++ {
++ cif->aarch64_flags |= AARCH64_FFI_WITH_V;
++ break;
++ }
++ }
++
++ return FFI_OK;
++}
++
++/* Call a function with the provided arguments and capture the return
++ value. */
++void
++ffi_call (ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
++{
++ extended_cif ecif;
++
++ ecif.cif = cif;
++ ecif.avalue = avalue;
++ ecif.rvalue = rvalue;
++
++ switch (cif->abi)
++ {
++ case FFI_SYSV:
++ {
++ struct call_context context;
++ unsigned stack_bytes;
++
++ /* Figure out the total amount of stack space we need, the
++ above call frame space needs to be 16 bytes aligned to
++ ensure correct alignment of the first object inserted in
++ that space hence the ALIGN applied to cif->bytes.*/
++ stack_bytes = ALIGN(cif->bytes, 16);
++
++ memset (&context, 0, sizeof (context));
++ if (is_register_candidate (cif->rtype))
++ {
++ ffi_call_SYSV (aarch64_prep_args, &context, &ecif, stack_bytes, fn);
++ switch (cif->rtype->type)
++ {
++ case FFI_TYPE_VOID:
++ case FFI_TYPE_FLOAT:
++ case FFI_TYPE_DOUBLE:
++ case FFI_TYPE_LONGDOUBLE:
++ case FFI_TYPE_UINT8:
++ case FFI_TYPE_SINT8:
++ case FFI_TYPE_UINT16:
++ case FFI_TYPE_SINT16:
++ case FFI_TYPE_UINT32:
++ case FFI_TYPE_SINT32:
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_UINT64:
++ case FFI_TYPE_INT:
++ case FFI_TYPE_SINT64:
++ {
++ void *addr = get_basic_type_addr (cif->rtype->type,
++ &context, 0);
++ copy_basic_type (rvalue, addr, cif->rtype->type);
++ break;
++ }
++
++ case FFI_TYPE_STRUCT:
++ if (is_hfa (cif->rtype))
++ {
++ int j;
++ unsigned short type = get_homogeneous_type (cif->rtype);
++ unsigned elems = element_count (cif->rtype);
++ for (j = 0; j < elems; j++)
++ {
++ void *reg = get_basic_type_addr (type, &context, j);
++ copy_basic_type (rvalue, reg, type);
++ rvalue += get_basic_type_size (type);
++ }
++ }
++ else if ((cif->rtype->size + 7) / 8 < N_X_ARG_REG)
++ {
++ unsigned size = ALIGN (cif->rtype->size, sizeof (UINT64));
++ memcpy (rvalue, get_x_addr (&context, 0), size);
++ }
++ else
++ {
++ FFI_ASSERT (0);
++ }
++ break;
++
++ default:
++ FFI_ASSERT (0);
++ break;
++ }
++ }
++ else
++ {
++ memcpy (get_x_addr (&context, 8), &rvalue, sizeof (UINT64));
++ ffi_call_SYSV (aarch64_prep_args, &context, &ecif,
++ stack_bytes, fn);
++ }
++ break;
++ }
++
++ default:
++ FFI_ASSERT (0);
++ break;
++ }
++}
++
++static unsigned char trampoline [] =
++{ 0x70, 0x00, 0x00, 0x58, /* ldr x16, 1f */
++ 0x91, 0x00, 0x00, 0x10, /* adr x17, 2f */
++ 0x00, 0x02, 0x1f, 0xd6 /* br x16 */
++};
++
++/* Build a trampoline. */
++
++#define FFI_INIT_TRAMPOLINE(TRAMP,FUN,CTX,FLAGS) \
++ ({unsigned char *__tramp = (unsigned char*)(TRAMP); \
++ UINT64 __fun = (UINT64)(FUN); \
++ UINT64 __ctx = (UINT64)(CTX); \
++ UINT64 __flags = (UINT64)(FLAGS); \
++ memcpy (__tramp, trampoline, sizeof (trampoline)); \
++ memcpy (__tramp + 12, &__fun, sizeof (__fun)); \
++ memcpy (__tramp + 20, &__ctx, sizeof (__ctx)); \
++ memcpy (__tramp + 28, &__flags, sizeof (__flags)); \
++ __clear_cache(__tramp, __tramp + FFI_TRAMPOLINE_SIZE); \
++ })
++
++ffi_status
++ffi_prep_closure_loc (ffi_closure* closure,
++ ffi_cif* cif,
++ void (*fun)(ffi_cif*,void*,void**,void*),
++ void *user_data,
++ void *codeloc)
++{
++ if (cif->abi != FFI_SYSV)
++ return FFI_BAD_ABI;
++
++ FFI_INIT_TRAMPOLINE (&closure->tramp[0], &ffi_closure_SYSV, codeloc,
++ cif->aarch64_flags);
++
++ closure->cif = cif;
++ closure->user_data = user_data;
++ closure->fun = fun;
++
++ return FFI_OK;
++}
++
++/* Primary handler to setup and invoke a function within a closure.
++
++ A closure when invoked enters via the assembler wrapper
++ ffi_closure_SYSV(). The wrapper allocates a call context on the
++ stack, saves the interesting registers (from the perspective of
++ the calling convention) into the context then passes control to
++ ffi_closure_SYSV_inner() passing the saved context and a pointer to
++ the stack at the point ffi_closure_SYSV() was invoked.
++
++ On the return path the assembler wrapper will reload call context
++ regsiters.
++
++ ffi_closure_SYSV_inner() marshalls the call context into ffi value
++ desriptors, invokes the wrapped function, then marshalls the return
++ value back into the call context. */
++
++void
++ffi_closure_SYSV_inner (ffi_closure *closure, struct call_context *context,
++ void *stack)
++{
++ ffi_cif *cif = closure->cif;
++ void **avalue = (void**) alloca (cif->nargs * sizeof (void*));
++ void *rvalue = NULL;
++ int i;
++ struct arg_state state;
++
++ arg_init (&state, ALIGN(cif->bytes, 16));
++
++ for (i = 0; i < cif->nargs; i++)
++ {
++ ffi_type *ty = cif->arg_types[i];
++
++ switch (ty->type)
++ {
++ case FFI_TYPE_VOID:
++ FFI_ASSERT (0);
++ break;
++
++ case FFI_TYPE_UINT8:
++ case FFI_TYPE_SINT8:
++ case FFI_TYPE_UINT16:
++ case FFI_TYPE_SINT16:
++ case FFI_TYPE_UINT32:
++ case FFI_TYPE_SINT32:
++ case FFI_TYPE_INT:
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_UINT64:
++ case FFI_TYPE_SINT64:
++ case FFI_TYPE_FLOAT:
++ case FFI_TYPE_DOUBLE:
++ case FFI_TYPE_LONGDOUBLE:
++ avalue[i] = allocate_to_register_or_stack (context, stack,
++ &state, ty->type);
++ break;
++
++ case FFI_TYPE_STRUCT:
++ if (is_hfa (ty))
++ {
++ unsigned n = element_count (ty);
++ if (available_v (&state) < n)
++ {
++ state.nsrn = N_V_ARG_REG;
++ avalue[i] = allocate_to_stack (&state, stack, ty->alignment,
++ ty->size);
++ }
++ else
++ {
++ switch (get_homogeneous_type (ty))
++ {
++ case FFI_TYPE_FLOAT:
++ {
++ /* Eeek! We need a pointer to the structure,
++ however the homogeneous float elements are
++ being passed in individual S registers,
++ therefore the structure is not represented as
++ a contiguous sequence of bytes in our saved
++ register context. We need to fake up a copy
++ of the structure layed out in memory
++ correctly. The fake can be tossed once the
++ closure function has returned hence alloca()
++ is sufficient. */
++ int j;
++ UINT32 *p = avalue[i] = alloca (ty->size);
++ for (j = 0; j < element_count (ty); j++)
++ memcpy (&p[j],
++ allocate_to_s (context, &state),
++ sizeof (*p));
++ break;
++ }
++
++ case FFI_TYPE_DOUBLE:
++ {
++ /* Eeek! We need a pointer to the structure,
++ however the homogeneous float elements are
++ being passed in individual S registers,
++ therefore the structure is not represented as
++ a contiguous sequence of bytes in our saved
++ register context. We need to fake up a copy
++ of the structure layed out in memory
++ correctly. The fake can be tossed once the
++ closure function has returned hence alloca()
++ is sufficient. */
++ int j;
++ UINT64 *p = avalue[i] = alloca (ty->size);
++ for (j = 0; j < element_count (ty); j++)
++ memcpy (&p[j],
++ allocate_to_d (context, &state),
++ sizeof (*p));
++ break;
++ }
++
++ case FFI_TYPE_LONGDOUBLE:
++ memcpy (&avalue[i],
++ allocate_to_v (context, &state),
++ sizeof (*avalue));
++ break;
++
++ default:
++ FFI_ASSERT (0);
++ break;
++ }
++ }
++ }
++ else if (ty->size > 16)
++ {
++ /* Replace Composite type of size greater than 16 with a
++ pointer. */
++ memcpy (&avalue[i],
++ allocate_to_register_or_stack (context, stack,
++ &state, FFI_TYPE_POINTER),
++ sizeof (avalue[i]));
++ }
++ else if (available_x (&state) >= (ty->size + 7) / 8)
++ {
++ avalue[i] = get_x_addr (context, state.ngrn);
++ state.ngrn += (ty->size + 7) / 8;
++ }
++ else
++ {
++ state.ngrn = N_X_ARG_REG;
++
++ avalue[i] = allocate_to_stack (&state, stack, ty->alignment,
++ ty->size);
++ }
++ break;
++
++ default:
++ FFI_ASSERT (0);
++ break;
++ }
++ }
++
++ /* Figure out where the return value will be passed, either in
++ registers or in a memory block allocated by the caller and passed
++ in x8. */
++
++ if (is_register_candidate (cif->rtype))
++ {
++ /* Register candidates are *always* returned in registers. */
++
++ /* Allocate a scratchpad for the return value, we will let the
++ callee scrible the result into the scratch pad then move the
++ contents into the appropriate return value location for the
++ call convention. */
++ rvalue = alloca (cif->rtype->size);
++ (closure->fun) (cif, rvalue, avalue, closure->user_data);
++
++ /* Copy the return value into the call context so that it is returned
++ as expected to our caller. */
++ switch (cif->rtype->type)
++ {
++ case FFI_TYPE_VOID:
++ break;
++
++ case FFI_TYPE_UINT8:
++ case FFI_TYPE_UINT16:
++ case FFI_TYPE_UINT32:
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_UINT64:
++ case FFI_TYPE_SINT8:
++ case FFI_TYPE_SINT16:
++ case FFI_TYPE_INT:
++ case FFI_TYPE_SINT32:
++ case FFI_TYPE_SINT64:
++ case FFI_TYPE_FLOAT:
++ case FFI_TYPE_DOUBLE:
++ case FFI_TYPE_LONGDOUBLE:
++ {
++ void *addr = get_basic_type_addr (cif->rtype->type, context, 0);
++ copy_basic_type (addr, rvalue, cif->rtype->type);
++ break;
++ }
++ case FFI_TYPE_STRUCT:
++ if (is_hfa (cif->rtype))
++ {
++ int i;
++ unsigned short type = get_homogeneous_type (cif->rtype);
++ unsigned elems = element_count (cif->rtype);
++ for (i = 0; i < elems; i++)
++ {
++ void *reg = get_basic_type_addr (type, context, i);
++ copy_basic_type (reg, rvalue, type);
++ rvalue += get_basic_type_size (type);
++ }
++ }
++ else if ((cif->rtype->size + 7) / 8 < N_X_ARG_REG)
++ {
++ unsigned size = ALIGN (cif->rtype->size, sizeof (UINT64)) ;
++ memcpy (get_x_addr (context, 0), rvalue, size);
++ }
++ else
++ {
++ FFI_ASSERT (0);
++ }
++ break;
++ default:
++ FFI_ASSERT (0);
++ break;
++ }
++ }
++ else
++ {
++ memcpy (&rvalue, get_x_addr (context, 8), sizeof (UINT64));
++ (closure->fun) (cif, rvalue, avalue, closure->user_data);
++ }
++}
++
+Index: libffi/src/aarch64/ffitarget.h
+===================================================================
+--- /dev/null
++++ libffi/src/aarch64/ffitarget.h
+@@ -0,0 +1,59 @@
++/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd.
++
++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. */
++
++#ifndef LIBFFI_TARGET_H
++#define LIBFFI_TARGET_H
++
++#ifndef LIBFFI_H
++#error "Please do not include ffitarget.h directly into your source. Use ffi.h instead."
++#endif
++
++#ifndef LIBFFI_ASM
++typedef unsigned long ffi_arg;
++typedef signed long ffi_sarg;
++
++typedef enum ffi_abi
++ {
++ FFI_FIRST_ABI = 0,
++ FFI_SYSV,
++ FFI_LAST_ABI,
++ FFI_DEFAULT_ABI = FFI_SYSV
++ } ffi_abi;
++#endif
++
++/* ---- Definitions for closures ----------------------------------------- */
++
++#define FFI_CLOSURES 1
++#define FFI_TRAMPOLINE_SIZE 36
++#define FFI_NATIVE_RAW_API 0
++
++/* ---- Internal ---- */
++
++
++#define FFI_EXTRA_CIF_FIELDS unsigned aarch64_flags
++
++#define AARCH64_FFI_WITH_V_BIT 0
++
++#define AARCH64_N_XREG 32
++#define AARCH64_N_VREG 32
++#define AARCH64_CALL_CONTEXT_SIZE (AARCH64_N_XREG * 8 + AARCH64_N_VREG * 16)
++
++#endif
+Index: libffi/src/aarch64/sysv.S
+===================================================================
+--- /dev/null
++++ libffi/src/aarch64/sysv.S
+@@ -0,0 +1,307 @@
++/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd.
++
++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. */
++
++#define LIBFFI_ASM
++#include <fficonfig.h>
++#include <ffi.h>
++
++#define cfi_adjust_cfa_offset(off) .cfi_adjust_cfa_offset off
++#define cfi_rel_offset(reg, off) .cfi_rel_offset reg, off
++#define cfi_restore(reg) .cfi_restore reg
++#define cfi_def_cfa_register(reg) .cfi_def_cfa_register reg
++
++ .text
++ .globl ffi_call_SYSV
++ .type ffi_call_SYSV, #function
++
++/* ffi_call_SYSV()
++
++ Create a stack frame, setup an argument context, call the callee
++ and extract the result.
++
++ The maximum required argument stack size is provided,
++ ffi_call_SYSV() allocates that stack space then calls the
++ prepare_fn to populate register context and stack. The
++ argument passing registers are loaded from the register
++ context and the callee called, on return the register passing
++ register are saved back to the context. Our caller will
++ extract the return value from the final state of the saved
++ register context.
++
++ Prototype:
++
++ extern unsigned
++ ffi_call_SYSV (void (*)(struct call_context *context, unsigned char *,
++ extended_cif *),
++ struct call_context *context,
++ extended_cif *,
++ unsigned required_stack_size,
++ void (*fn)(void));
++
++ Therefore on entry we have:
++
++ x0 prepare_fn
++ x1 &context
++ x2 &ecif
++ x3 bytes
++ x4 fn
++
++ This function uses the following stack frame layout:
++
++ ==
++ saved x30(lr)
++ x29(fp)-> saved x29(fp)
++ saved x24
++ saved x23
++ saved x22
++ sp' -> saved x21
++ ...
++ sp -> (constructed callee stack arguments)
++ ==
++
++ Voila! */
++
++#define ffi_call_SYSV_FS (8 * 4)
++
++ .cfi_startproc
++ffi_call_SYSV:
++ stp x29, x30, [sp, #-16]!
++ cfi_adjust_cfa_offset (16)
++ cfi_rel_offset (x29, 0)
++ cfi_rel_offset (x30, 8)
++
++ mov x29, sp
++ cfi_def_cfa_register (x29)
++ sub sp, sp, #ffi_call_SYSV_FS
++
++ stp x21, x22, [sp, 0]
++ cfi_rel_offset (x21, 0 - ffi_call_SYSV_FS)
++ cfi_rel_offset (x22, 8 - ffi_call_SYSV_FS)
++
++ stp x23, x24, [sp, 16]
++ cfi_rel_offset (x23, 16 - ffi_call_SYSV_FS)
++ cfi_rel_offset (x24, 24 - ffi_call_SYSV_FS)
++
++ mov x21, x1
++ mov x22, x2
++ mov x24, x4
++
++ /* Allocate the stack space for the actual arguments, many
++ arguments will be passed in registers, but we assume
++ worst case and allocate sufficient stack for ALL of
++ the arguments. */
++ sub sp, sp, x3
++
++ /* unsigned (*prepare_fn) (struct call_context *context,
++ unsigned char *stack, extended_cif *ecif);
++ */
++ mov x23, x0
++ mov x0, x1
++ mov x1, sp
++ /* x2 already in place */
++ blr x23
++
++ /* Preserve the flags returned. */
++ mov x23, x0
++
++ /* Figure out if we should touch the vector registers. */
++ tbz x23, #AARCH64_FFI_WITH_V_BIT, 1f
++
++ /* Load the vector argument passing registers. */
++ ldp q0, q1, [x21, #8*32 + 0]
++ ldp q2, q3, [x21, #8*32 + 32]
++ ldp q4, q5, [x21, #8*32 + 64]
++ ldp q6, q7, [x21, #8*32 + 96]
++1:
++ /* Load the core argument passing registers. */
++ ldp x0, x1, [x21, #0]
++ ldp x2, x3, [x21, #16]
++ ldp x4, x5, [x21, #32]
++ ldp x6, x7, [x21, #48]
++
++ /* Don't forget x8 which may be holding the address of a return buffer.
++ */
++ ldr x8, [x21, #8*8]
++
++ blr x24
++
++ /* Save the core argument passing registers. */
++ stp x0, x1, [x21, #0]
++ stp x2, x3, [x21, #16]
++ stp x4, x5, [x21, #32]
++ stp x6, x7, [x21, #48]
++
++ /* Note nothing useful ever comes back in x8! */
++
++ /* Figure out if we should touch the vector registers. */
++ tbz x23, #AARCH64_FFI_WITH_V_BIT, 1f
++
++ /* Save the vector argument passing registers. */
++ stp q0, q1, [x21, #8*32 + 0]
++ stp q2, q3, [x21, #8*32 + 32]
++ stp q4, q5, [x21, #8*32 + 64]
++ stp q6, q7, [x21, #8*32 + 96]
++1:
++ /* All done, unwind our stack frame. */
++ ldp x21, x22, [x29, # - ffi_call_SYSV_FS]
++ cfi_restore (x21)
++ cfi_restore (x22)
++
++ ldp x23, x24, [x29, # - ffi_call_SYSV_FS + 16]
++ cfi_restore (x23)
++ cfi_restore (x24)
++
++ mov sp, x29
++ cfi_def_cfa_register (sp)
++
++ ldp x29, x30, [sp], #16
++ cfi_adjust_cfa_offset (-16)
++ cfi_restore (x29)
++ cfi_restore (x30)
++
++ ret
++
++ .cfi_endproc
++ .size ffi_call_SYSV, .-ffi_call_SYSV
++
++#define ffi_closure_SYSV_FS (8 * 2 + AARCH64_CALL_CONTEXT_SIZE)
++
++/* ffi_closure_SYSV
++
++ Closure invocation glue. This is the low level code invoked directly by
++ the closure trampoline to setup and call a closure.
++
++ On entry x17 points to a struct trampoline_data, x16 has been clobbered
++ all other registers are preserved.
++
++ We allocate a call context and save the argument passing registers,
++ then invoked the generic C ffi_closure_SYSV_inner() function to do all
++ the real work, on return we load the result passing registers back from
++ the call context.
++
++ On entry
++
++ extern void
++ ffi_closure_SYSV (struct trampoline_data *);
++
++ struct trampoline_data
++ {
++ UINT64 *ffi_closure;
++ UINT64 flags;
++ };
++
++ This function uses the following stack frame layout:
++
++ ==
++ saved x30(lr)
++ x29(fp)-> saved x29(fp)
++ saved x22
++ saved x21
++ ...
++ sp -> call_context
++ ==
++
++ Voila! */
++
++ .text
++ .globl ffi_closure_SYSV
++ .cfi_startproc
++ffi_closure_SYSV:
++ stp x29, x30, [sp, #-16]!
++ cfi_adjust_cfa_offset (16)
++ cfi_rel_offset (x29, 0)
++ cfi_rel_offset (x30, 8)
++
++ mov x29, sp
++
++ sub sp, sp, #ffi_closure_SYSV_FS
++ cfi_adjust_cfa_offset (ffi_closure_SYSV_FS)
++
++ stp x21, x22, [x29, #-16]
++ cfi_rel_offset (x21, 0)
++ cfi_rel_offset (x22, 8)
++
++ /* Load x21 with &call_context. */
++ mov x21, sp
++ /* Preserve our struct trampoline_data * */
++ mov x22, x17
++
++ /* Save the rest of the argument passing registers. */
++ stp x0, x1, [x21, #0]
++ stp x2, x3, [x21, #16]
++ stp x4, x5, [x21, #32]
++ stp x6, x7, [x21, #48]
++ /* Don't forget we may have been given a result scratch pad address.
++ */
++ str x8, [x21, #64]
++
++ /* Figure out if we should touch the vector registers. */
++ ldr x0, [x22, #8]
++ tbz x0, #AARCH64_FFI_WITH_V_BIT, 1f
++
++ /* Save the argument passing vector registers. */
++ stp q0, q1, [x21, #8*32 + 0]
++ stp q2, q3, [x21, #8*32 + 32]
++ stp q4, q5, [x21, #8*32 + 64]
++ stp q6, q7, [x21, #8*32 + 96]
++1:
++ /* Load &ffi_closure.. */
++ ldr x0, [x22, #0]
++ mov x1, x21
++ /* Compute the location of the stack at the point that the
++ trampoline was called. */
++ add x2, x29, #16
++
++ bl ffi_closure_SYSV_inner
++
++ /* Figure out if we should touch the vector registers. */
++ ldr x0, [x22, #8]
++ tbz x0, #AARCH64_FFI_WITH_V_BIT, 1f
++
++ /* Load the result passing vector registers. */
++ ldp q0, q1, [x21, #8*32 + 0]
++ ldp q2, q3, [x21, #8*32 + 32]
++ ldp q4, q5, [x21, #8*32 + 64]
++ ldp q6, q7, [x21, #8*32 + 96]
++1:
++ /* Load the result passing core registers. */
++ ldp x0, x1, [x21, #0]
++ ldp x2, x3, [x21, #16]
++ ldp x4, x5, [x21, #32]
++ ldp x6, x7, [x21, #48]
++ /* Note nothing usefull is returned in x8. */
++
++ /* We are done, unwind our frame. */
++ ldp x21, x22, [x29, #-16]
++ cfi_restore (x21)
++ cfi_restore (x22)
++
++ mov sp, x29
++ cfi_adjust_cfa_offset (-ffi_closure_SYSV_FS)
++
++ ldp x29, x30, [sp], #16
++ cfi_adjust_cfa_offset (-16)
++ cfi_restore (x29)
++ cfi_restore (x30)
++
++ ret
++ .cfi_endproc
++ .size ffi_closure_SYSV, .-ffi_closure_SYSV
+Index: libffi/testsuite/lib/libffi.exp
+===================================================================
+--- libffi.orig/testsuite/lib/libffi.exp
++++ libffi/testsuite/lib/libffi.exp
+@@ -203,6 +203,10 @@ proc libffi_target_compile { source dest
+
+ lappend options "libs= -lffi"
+
++ if { [string match "aarch64*-*-linux*" $target_triplet] } {
++ lappend options "libs= -lpthread"
++ }
++
+ verbose "options: $options"
+ return [target_compile $source $dest $type $options]
+ }
+Index: libffi/testsuite/libffi.call/cls_struct_va1.c
+===================================================================
+--- /dev/null
++++ libffi/testsuite/libffi.call/cls_struct_va1.c
+@@ -0,0 +1,114 @@
++/* Area: ffi_call, closure_call
++ Purpose: Test doubles passed in variable argument lists.
++ Limitations: none.
++ PR: none.
++ Originator: Blake Chaffin 6/6/2007 */
++
++/* { dg-do run } */
++/* { dg-output "" { xfail avr32*-*-* } } */
++#include "ffitest.h"
++
++struct small_tag
++{
++ unsigned char a;
++ unsigned char b;
++};
++
++struct large_tag
++{
++ unsigned a;
++ unsigned b;
++ unsigned c;
++ unsigned d;
++ unsigned e;
++};
++
++static void
++test_fn (ffi_cif* cif __UNUSED__, void* resp,
++ void** args, void* userdata __UNUSED__)
++{
++ int n = *(int*)args[0];
++ struct small_tag s1 = * (struct small_tag *) args[1];
++ struct large_tag l1 = * (struct large_tag *) args[2];
++ struct small_tag s2 = * (struct small_tag *) args[3];
++
++ printf ("%d %d %d %d %d %d %d %d %d %d\n", n, s1.a, s1.b,
++ l1.a, l1.b, l1.c, l1.d, l1.e,
++ s2.a, s2.b);
++ * (int*) resp = 42;
++}
++
++int
++main (void)
++{
++ ffi_cif cif;
++ void *code;
++ ffi_closure *pcl = ffi_closure_alloc (sizeof (ffi_closure), &code);
++ ffi_type* arg_types[5];
++
++ ffi_arg res = 0;
++
++ ffi_type s_type;
++ ffi_type *s_type_elements[3];
++
++ ffi_type l_type;
++ ffi_type *l_type_elements[6];
++
++ struct small_tag s1;
++ struct small_tag s2;
++ struct large_tag l1;
++
++ int si;
++
++ s_type.size = 0;
++ s_type.alignment = 0;
++ s_type.type = FFI_TYPE_STRUCT;
++ s_type.elements = s_type_elements;
++
++ s_type_elements[0] = &ffi_type_uchar;
++ s_type_elements[1] = &ffi_type_uchar;
++ s_type_elements[2] = NULL;
++
++ l_type.size = 0;
++ l_type.alignment = 0;
++ l_type.type = FFI_TYPE_STRUCT;
++ l_type.elements = l_type_elements;
++
++ l_type_elements[0] = &ffi_type_uint;
++ l_type_elements[1] = &ffi_type_uint;
++ l_type_elements[2] = &ffi_type_uint;
++ l_type_elements[3] = &ffi_type_uint;
++ l_type_elements[4] = &ffi_type_uint;
++ l_type_elements[5] = NULL;
++
++ arg_types[0] = &ffi_type_sint;
++ arg_types[1] = &s_type;
++ arg_types[2] = &l_type;
++ arg_types[3] = &s_type;
++ arg_types[4] = NULL;
++
++ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 4, &ffi_type_sint,
++ arg_types) == FFI_OK);
++
++ si = 4;
++ s1.a = 5;
++ s1.b = 6;
++
++ s2.a = 20;
++ s2.b = 21;
++
++ l1.a = 10;
++ l1.b = 11;
++ l1.c = 12;
++ l1.d = 13;
++ l1.e = 14;
++
++ CHECK(ffi_prep_closure_loc(pcl, &cif, test_fn, NULL, code) == FFI_OK);
++
++ res = ((int (*)(int, ...))(code))(si, s1, l1, s2);
++ // { dg-output "4 5 6 10 11 12 13 14 20 21" }
++ printf("res: %d\n", (int) res);
++ // { dg-output "\nres: 42" }
++
++ exit(0);
++}
+Index: libffi/testsuite/libffi.call/cls_uchar_va.c
+===================================================================
+--- /dev/null
++++ libffi/testsuite/libffi.call/cls_uchar_va.c
+@@ -0,0 +1,44 @@
++/* Area: closure_call
++ Purpose: Test anonymous unsigned char argument.
++ Limitations: none.
++ PR: none.
++ Originator: ARM Ltd. */
++
++/* { dg-do run } */
++#include "ffitest.h"
++
++typedef unsigned char T;
++
++static void cls_ret_T_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
++ void* userdata __UNUSED__)
++ {
++ *(T *)resp = *(T *)args[0];
++
++ printf("%d: %d %d\n", *(T *)resp, *(T *)args[0], *(T *)args[1]);
++ }
++
++typedef T (*cls_ret_T)(T, ...);
++
++int main (void)
++{
++ ffi_cif cif;
++ void *code;
++ ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
++ ffi_type * cl_arg_types[3];
++ T res;
++
++ cl_arg_types[0] = &ffi_type_uchar;
++ cl_arg_types[1] = &ffi_type_uchar;
++ cl_arg_types[2] = NULL;
++
++ /* Initialize the cif */
++ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 2,
++ &ffi_type_uchar, cl_arg_types) == FFI_OK);
++
++ CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_T_fn, NULL, code) == FFI_OK);
++ res = ((((cls_ret_T)code)(67, 4)));
++ /* { dg-output "67: 67 4" } */
++ printf("res: %d\n", res);
++ /* { dg-output "\nres: 67" } */
++ exit(0);
++}
+Index: libffi/testsuite/libffi.call/cls_uint_va.c
+===================================================================
+--- /dev/null
++++ libffi/testsuite/libffi.call/cls_uint_va.c
+@@ -0,0 +1,45 @@
++/* Area: closure_call
++ Purpose: Test anonymous unsigned int argument.
++ Limitations: none.
++ PR: none.
++ Originator: ARM Ltd. */
++
++/* { dg-do run } */
++
++#include "ffitest.h"
++
++typedef unsigned int T;
++
++static void cls_ret_T_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
++ void* userdata __UNUSED__)
++ {
++ *(T *)resp = *(T *)args[0];
++
++ printf("%d: %d %d\n", *(T *)resp, *(T *)args[0], *(T *)args[1]);
++ }
++
++typedef T (*cls_ret_T)(T, ...);
++
++int main (void)
++{
++ ffi_cif cif;
++ void *code;
++ ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
++ ffi_type * cl_arg_types[3];
++ T res;
++
++ cl_arg_types[0] = &ffi_type_uint;
++ cl_arg_types[1] = &ffi_type_uint;
++ cl_arg_types[2] = NULL;
++
++ /* Initialize the cif */
++ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 2,
++ &ffi_type_uint, cl_arg_types) == FFI_OK);
++
++ CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_T_fn, NULL, code) == FFI_OK);
++ res = ((((cls_ret_T)code)(67, 4)));
++ /* { dg-output "67: 67 4" } */
++ printf("res: %d\n", res);
++ /* { dg-output "\nres: 67" } */
++ exit(0);
++}
+Index: libffi/testsuite/libffi.call/cls_ulong_va.c
+===================================================================
+--- /dev/null
++++ libffi/testsuite/libffi.call/cls_ulong_va.c
+@@ -0,0 +1,45 @@
++/* Area: closure_call
++ Purpose: Test anonymous unsigned long argument.
++ Limitations: none.
++ PR: none.
++ Originator: ARM Ltd. */
++
++/* { dg-do run } */
++
++#include "ffitest.h"
++
++typedef unsigned long T;
++
++static void cls_ret_T_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
++ void* userdata __UNUSED__)
++ {
++ *(T *)resp = *(T *)args[0];
++
++ printf("%ld: %ld %ld\n", *(T *)resp, *(T *)args[0], *(T *)args[1]);
++ }
++
++typedef T (*cls_ret_T)(T, ...);
++
++int main (void)
++{
++ ffi_cif cif;
++ void *code;
++ ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
++ ffi_type * cl_arg_types[3];
++ T res;
++
++ cl_arg_types[0] = &ffi_type_ulong;
++ cl_arg_types[1] = &ffi_type_ulong;
++ cl_arg_types[2] = NULL;
++
++ /* Initialize the cif */
++ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 2,
++ &ffi_type_ulong, cl_arg_types) == FFI_OK);
++
++ CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_T_fn, NULL, code) == FFI_OK);
++ res = ((((cls_ret_T)code)(67, 4)));
++ /* { dg-output "67: 67 4" } */
++ printf("res: %ld\n", res);
++ /* { dg-output "\nres: 67" } */
++ exit(0);
++}
+Index: libffi/testsuite/libffi.call/cls_ushort_va.c
+===================================================================
+--- /dev/null
++++ libffi/testsuite/libffi.call/cls_ushort_va.c
+@@ -0,0 +1,44 @@
++/* Area: closure_call
++ Purpose: Test anonymous unsigned short argument.
++ Limitations: none.
++ PR: none.
++ Originator: ARM Ltd. */
++
++/* { dg-do run } */
++#include "ffitest.h"
++
++typedef unsigned short T;
++
++static void cls_ret_T_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
++ void* userdata __UNUSED__)
++ {
++ *(T *)resp = *(T *)args[0];
++
++ printf("%d: %d %d\n", *(T *)resp, *(T *)args[0], *(T *)args[1]);
++ }
++
++typedef T (*cls_ret_T)(T, ...);
++
++int main (void)
++{
++ ffi_cif cif;
++ void *code;
++ ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
++ ffi_type * cl_arg_types[3];
++ T res;
++
++ cl_arg_types[0] = &ffi_type_ushort;
++ cl_arg_types[1] = &ffi_type_ushort;
++ cl_arg_types[2] = NULL;
++
++ /* Initialize the cif */
++ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 2,
++ &ffi_type_ushort, cl_arg_types) == FFI_OK);
++
++ CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_T_fn, NULL, code) == FFI_OK);
++ res = ((((cls_ret_T)code)(67, 4)));
++ /* { dg-output "67: 67 4" } */
++ printf("res: %d\n", res);
++ /* { dg-output "\nres: 67" } */
++ exit(0);
++}
+Index: libffi/testsuite/libffi.call/nested_struct11.c
+===================================================================
+--- /dev/null
++++ libffi/testsuite/libffi.call/nested_struct11.c
+@@ -0,0 +1,121 @@
++/* Area: ffi_call, closure_call
++ Purpose: Check parameter passing with nested structs
++ of a single type. This tests the special cases
++ for homogenous floating-point aggregates in the
++ AArch64 PCS.
++ Limitations: none.
++ PR: none.
++ Originator: ARM Ltd. */
++
++/* { dg-do run } */
++#include "ffitest.h"
++
++typedef struct A {
++ float a_x;
++ float a_y;
++} A;
++
++typedef struct B {
++ float b_x;
++ float b_y;
++} B;
++
++typedef struct C {
++ A a;
++ B b;
++} C;
++
++static C C_fn (int x, int y, int z, C source, int i, int j, int k)
++{
++ C result;
++ result.a.a_x = source.a.a_x;
++ result.a.a_y = source.a.a_y;
++ result.b.b_x = source.b.b_x;
++ result.b.b_y = source.b.b_y;
++
++ printf ("%d, %d, %d, %d, %d, %d\n", x, y, z, i, j, k);
++
++ printf ("%.1f, %.1f, %.1f, %.1f, "
++ "%.1f, %.1f, %.1f, %.1f\n",
++ source.a.a_x, source.a.a_y,
++ source.b.b_x, source.b.b_y,
++ result.a.a_x, result.a.a_y,
++ result.b.b_x, result.b.b_y);
++
++ return result;
++}
++
++int main (void)
++{
++ ffi_cif cif;
++
++ ffi_type* struct_fields_source_a[3];
++ ffi_type* struct_fields_source_b[3];
++ ffi_type* struct_fields_source_c[3];
++ ffi_type* arg_types[8];
++
++ ffi_type struct_type_a, struct_type_b, struct_type_c;
++
++ struct A source_fld_a = {1.0, 2.0};
++ struct B source_fld_b = {4.0, 8.0};
++ int k = 1;
++
++ struct C result;
++ struct C source = {source_fld_a, source_fld_b};
++
++ struct_type_a.size = 0;
++ struct_type_a.alignment = 0;
++ struct_type_a.type = FFI_TYPE_STRUCT;
++ struct_type_a.elements = struct_fields_source_a;
++
++ struct_type_b.size = 0;
++ struct_type_b.alignment = 0;
++ struct_type_b.type = FFI_TYPE_STRUCT;
++ struct_type_b.elements = struct_fields_source_b;
++
++ struct_type_c.size = 0;
++ struct_type_c.alignment = 0;
++ struct_type_c.type = FFI_TYPE_STRUCT;
++ struct_type_c.elements = struct_fields_source_c;
++
++ struct_fields_source_a[0] = &ffi_type_float;
++ struct_fields_source_a[1] = &ffi_type_float;
++ struct_fields_source_a[2] = NULL;
++
++ struct_fields_source_b[0] = &ffi_type_float;
++ struct_fields_source_b[1] = &ffi_type_float;
++ struct_fields_source_b[2] = NULL;
++
++ struct_fields_source_c[0] = &struct_type_a;
++ struct_fields_source_c[1] = &struct_type_b;
++ struct_fields_source_c[2] = NULL;
++
++ arg_types[0] = &ffi_type_sint32;
++ arg_types[1] = &ffi_type_sint32;
++ arg_types[2] = &ffi_type_sint32;
++ arg_types[3] = &struct_type_c;
++ arg_types[4] = &ffi_type_sint32;
++ arg_types[5] = &ffi_type_sint32;
++ arg_types[6] = &ffi_type_sint32;
++ arg_types[7] = NULL;
++
++ void *args[7];
++ args[0] = &k;
++ args[1] = &k;
++ args[2] = &k;
++ args[3] = &source;
++ args[4] = &k;
++ args[5] = &k;
++ args[6] = &k;
++ CHECK (ffi_prep_cif (&cif, FFI_DEFAULT_ABI, 7, &struct_type_c,
++ arg_types) == FFI_OK);
++
++ ffi_call (&cif, FFI_FN (C_fn), &result, args);
++ /* { dg-output "1, 1, 1, 1, 1, 1\n" } */
++ /* { dg-output "1.0, 2.0, 4.0, 8.0, 1.0, 2.0, 4.0, 8.0" } */
++ CHECK (result.a.a_x == source.a.a_x);
++ CHECK (result.a.a_y == source.a.a_y);
++ CHECK (result.b.b_x == source.b.b_x);
++ CHECK (result.b.b_y == source.b.b_y);
++ exit (0);
++}
+Index: libffi/testsuite/libffi.call/uninitialized.c
+===================================================================
+--- /dev/null
++++ libffi/testsuite/libffi.call/uninitialized.c
+@@ -0,0 +1,61 @@
++/* { dg-do run } */
++#include "ffitest.h"
++
++typedef struct
++{
++ unsigned char uc;
++ double d;
++ unsigned int ui;
++} test_structure_1;
++
++static test_structure_1 struct1(test_structure_1 ts)
++{
++ ts.uc++;
++ ts.d--;
++ ts.ui++;
++
++ return ts;
++}
++
++int main (void)
++{
++ ffi_cif cif;
++ ffi_type *args[MAX_ARGS];
++ void *values[MAX_ARGS];
++ ffi_type ts1_type;
++ ffi_type *ts1_type_elements[4];
++
++ memset(&cif, 1, sizeof(cif));
++ ts1_type.size = 0;
++ ts1_type.alignment = 0;
++ ts1_type.type = FFI_TYPE_STRUCT;
++ ts1_type.elements = ts1_type_elements;
++ ts1_type_elements[0] = &ffi_type_uchar;
++ ts1_type_elements[1] = &ffi_type_double;
++ ts1_type_elements[2] = &ffi_type_uint;
++ ts1_type_elements[3] = NULL;
++
++ test_structure_1 ts1_arg;
++ /* This is a hack to get a properly aligned result buffer */
++ test_structure_1 *ts1_result =
++ (test_structure_1 *) malloc (sizeof(test_structure_1));
++
++ args[0] = &ts1_type;
++ values[0] = &ts1_arg;
++
++ /* Initialize the cif */
++ CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
++ &ts1_type, args) == FFI_OK);
++
++ ts1_arg.uc = '\x01';
++ ts1_arg.d = 3.14159;
++ ts1_arg.ui = 555;
++
++ ffi_call(&cif, FFI_FN(struct1), ts1_result, values);
++
++ CHECK(ts1_result->ui == 556);
++ CHECK(ts1_result->d == 3.14159 - 1);
++
++ free (ts1_result);
++ exit(0);
++}
+Index: libffi/testsuite/libffi.call/va_1.c
+===================================================================
+--- /dev/null
++++ libffi/testsuite/libffi.call/va_1.c
+@@ -0,0 +1,196 @@
++/* Area: ffi_call
++ Purpose: Test passing struct in variable argument lists.
++ Limitations: none.
++ PR: none.
++ Originator: ARM Ltd. */
++
++/* { dg-do run } */
++/* { dg-output "" { xfail avr32*-*-* x86_64-*-*-* } } */
++
++#include "ffitest.h"
++#include <stdarg.h>
++
++struct small_tag
++{
++ unsigned char a;
++ unsigned char b;
++};
++
++struct large_tag
++{
++ unsigned a;
++ unsigned b;
++ unsigned c;
++ unsigned d;
++ unsigned e;
++};
++
++static int
++test_fn (int n, ...)
++{
++ va_list ap;
++ struct small_tag s1;
++ struct small_tag s2;
++ struct large_tag l;
++ unsigned char uc;
++ signed char sc;
++ unsigned short us;
++ signed short ss;
++ unsigned int ui;
++ signed int si;
++ unsigned long ul;
++ signed long sl;
++ float f;
++ double d;
++
++ va_start (ap, n);
++ s1 = va_arg (ap, struct small_tag);
++ l = va_arg (ap, struct large_tag);
++ s2 = va_arg (ap, struct small_tag);
++
++ uc = va_arg (ap, unsigned);
++ sc = va_arg (ap, signed);
++
++ us = va_arg (ap, unsigned);
++ ss = va_arg (ap, signed);
++
++ ui = va_arg (ap, unsigned int);
++ si = va_arg (ap, signed int);
++
++ ul = va_arg (ap, unsigned long);
++ sl = va_arg (ap, signed long);
++
++ f = va_arg (ap, double); /* C standard promotes float->double
++ when anonymous */
++ d = va_arg (ap, double);
++
++ printf ("%u %u %u %u %u %u %u %u %u uc=%u sc=%d %u %d %u %d %lu %ld %f %f\n",
++ s1.a, s1.b, l.a, l.b, l.c, l.d, l.e,
++ s2.a, s2.b,
++ uc, sc,
++ us, ss,
++ ui, si,
++ ul, sl,
++ f, d);
++ va_end (ap);
++ return n + 1;
++}
++
++int
++main (void)
++{
++ ffi_cif cif;
++ void* args[15];
++ ffi_type* arg_types[15];
++
++ ffi_type s_type;
++ ffi_type *s_type_elements[3];
++
++ ffi_type l_type;
++ ffi_type *l_type_elements[6];
++
++ struct small_tag s1;
++ struct small_tag s2;
++ struct large_tag l1;
++
++ int n;
++ int res;
++
++ unsigned char uc;
++ signed char sc;
++ unsigned short us;
++ signed short ss;
++ unsigned int ui;
++ signed int si;
++ unsigned long ul;
++ signed long sl;
++ double d1;
++ double f1;
++
++ s_type.size = 0;
++ s_type.alignment = 0;
++ s_type.type = FFI_TYPE_STRUCT;
++ s_type.elements = s_type_elements;
++
++ s_type_elements[0] = &ffi_type_uchar;
++ s_type_elements[1] = &ffi_type_uchar;
++ s_type_elements[2] = NULL;
++
++ l_type.size = 0;
++ l_type.alignment = 0;
++ l_type.type = FFI_TYPE_STRUCT;
++ l_type.elements = l_type_elements;
++
++ l_type_elements[0] = &ffi_type_uint;
++ l_type_elements[1] = &ffi_type_uint;
++ l_type_elements[2] = &ffi_type_uint;
++ l_type_elements[3] = &ffi_type_uint;
++ l_type_elements[4] = &ffi_type_uint;
++ l_type_elements[5] = NULL;
++
++ arg_types[0] = &ffi_type_sint;
++ arg_types[1] = &s_type;
++ arg_types[2] = &l_type;
++ arg_types[3] = &s_type;
++ arg_types[4] = &ffi_type_uint;
++ arg_types[5] = &ffi_type_sint;
++ arg_types[6] = &ffi_type_uint;
++ arg_types[7] = &ffi_type_sint;
++ arg_types[8] = &ffi_type_uint;
++ arg_types[9] = &ffi_type_sint;
++ arg_types[10] = &ffi_type_ulong;
++ arg_types[11] = &ffi_type_slong;
++ arg_types[12] = &ffi_type_double;
++ arg_types[13] = &ffi_type_double;
++ arg_types[14] = NULL;
++
++ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 14, &ffi_type_sint, arg_types) == FFI_OK);
++
++ s1.a = 5;
++ s1.b = 6;
++
++ l1.a = 10;
++ l1.b = 11;
++ l1.c = 12;
++ l1.d = 13;
++ l1.e = 14;
++
++ s2.a = 7;
++ s2.b = 8;
++
++ n = 41;
++
++ uc = 9;
++ sc = 10;
++ us = 11;
++ ss = 12;
++ ui = 13;
++ si = 14;
++ ul = 15;
++ sl = 16;
++ f1 = 2.12;
++ d1 = 3.13;
++
++ args[0] = &n;
++ args[1] = &s1;
++ args[2] = &l1;
++ args[3] = &s2;
++ args[4] = &uc;
++ args[5] = ≻
++ args[6] = &us;
++ args[7] = &ss;
++ args[8] = &ui;
++ args[9] = &si;
++ args[10] = &ul;
++ args[11] = &sl;
++ args[12] = &f1;
++ args[13] = &d1;
++ args[14] = NULL;
++
++ ffi_call(&cif, FFI_FN(test_fn), &res, args);
++ /* { dg-output "5 6 10 11 12 13 14 7 8 uc=9 sc=10 11 12 13 14 15 16 2.120000 3.130000" } */
++ printf("res: %d\n", (int) res);
++ /* { dg-output "\nres: 42" } */
++
++ return 0;
++}
+Index: libffi/testsuite/libffi.call/va_struct1.c
+===================================================================
+--- /dev/null
++++ libffi/testsuite/libffi.call/va_struct1.c
+@@ -0,0 +1,121 @@
++/* Area: ffi_call
++ Purpose: Test passing struct in variable argument lists.
++ Limitations: none.
++ PR: none.
++ Originator: ARM Ltd. */
++
++/* { dg-do run } */
++/* { dg-output "" { xfail avr32*-*-* } } */
++
++#include "ffitest.h"
++#include <stdarg.h>
++
++struct small_tag
++{
++ unsigned char a;
++ unsigned char b;
++};
++
++struct large_tag
++{
++ unsigned a;
++ unsigned b;
++ unsigned c;
++ unsigned d;
++ unsigned e;
++};
++
++static int
++test_fn (int n, ...)
++{
++ va_list ap;
++ struct small_tag s1;
++ struct small_tag s2;
++ struct large_tag l;
++
++ va_start (ap, n);
++ s1 = va_arg (ap, struct small_tag);
++ l = va_arg (ap, struct large_tag);
++ s2 = va_arg (ap, struct small_tag);
++ printf ("%u %u %u %u %u %u %u %u %u\n", s1.a, s1.b, l.a, l.b, l.c, l.d, l.e,
++ s2.a, s2.b);
++ va_end (ap);
++ return n + 1;
++}
++
++int
++main (void)
++{
++ ffi_cif cif;
++ void* args[5];
++ ffi_type* arg_types[5];
++
++ ffi_type s_type;
++ ffi_type *s_type_elements[3];
++
++ ffi_type l_type;
++ ffi_type *l_type_elements[6];
++
++ struct small_tag s1;
++ struct small_tag s2;
++ struct large_tag l1;
++
++ int n;
++ int res;
++
++ s_type.size = 0;
++ s_type.alignment = 0;
++ s_type.type = FFI_TYPE_STRUCT;
++ s_type.elements = s_type_elements;
++
++ s_type_elements[0] = &ffi_type_uchar;
++ s_type_elements[1] = &ffi_type_uchar;
++ s_type_elements[2] = NULL;
++
++ l_type.size = 0;
++ l_type.alignment = 0;
++ l_type.type = FFI_TYPE_STRUCT;
++ l_type.elements = l_type_elements;
++
++ l_type_elements[0] = &ffi_type_uint;
++ l_type_elements[1] = &ffi_type_uint;
++ l_type_elements[2] = &ffi_type_uint;
++ l_type_elements[3] = &ffi_type_uint;
++ l_type_elements[4] = &ffi_type_uint;
++ l_type_elements[5] = NULL;
++
++ arg_types[0] = &ffi_type_sint;
++ arg_types[1] = &s_type;
++ arg_types[2] = &l_type;
++ arg_types[3] = &s_type;
++ arg_types[4] = NULL;
++
++ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 4, &ffi_type_sint, arg_types) == FFI_OK);
++
++ s1.a = 5;
++ s1.b = 6;
++
++ l1.a = 10;
++ l1.b = 11;
++ l1.c = 12;
++ l1.d = 13;
++ l1.e = 14;
++
++ s2.a = 7;
++ s2.b = 8;
++
++ n = 41;
++
++ args[0] = &n;
++ args[1] = &s1;
++ args[2] = &l1;
++ args[3] = &s2;
++ args[4] = NULL;
++
++ ffi_call(&cif, FFI_FN(test_fn), &res, args);
++ /* { dg-output "5 6 10 11 12 13 14 7 8" } */
++ printf("res: %d\n", (int) res);
++ /* { dg-output "\nres: 42" } */
++
++ return 0;
++}
+Index: libffi/testsuite/libffi.call/va_struct2.c
+===================================================================
+--- /dev/null
++++ libffi/testsuite/libffi.call/va_struct2.c
+@@ -0,0 +1,123 @@
++/* Area: ffi_call
++ Purpose: Test passing struct in variable argument lists.
++ Limitations: none.
++ PR: none.
++ Originator: ARM Ltd. */
++
++/* { dg-do run } */
++/* { dg-output "" { xfail avr32*-*-* } } */
++
++#include "ffitest.h"
++#include <stdarg.h>
++
++struct small_tag
++{
++ unsigned char a;
++ unsigned char b;
++};
++
++struct large_tag
++{
++ unsigned a;
++ unsigned b;
++ unsigned c;
++ unsigned d;
++ unsigned e;
++};
++
++static struct small_tag
++test_fn (int n, ...)
++{
++ va_list ap;
++ struct small_tag s1;
++ struct small_tag s2;
++ struct large_tag l;
++
++ va_start (ap, n);
++ s1 = va_arg (ap, struct small_tag);
++ l = va_arg (ap, struct large_tag);
++ s2 = va_arg (ap, struct small_tag);
++ printf ("%u %u %u %u %u %u %u %u %u\n", s1.a, s1.b, l.a, l.b, l.c, l.d, l.e,
++ s2.a, s2.b);
++ va_end (ap);
++ s1.a += s2.a;
++ s1.b += s2.b;
++ return s1;
++}
++
++int
++main (void)
++{
++ ffi_cif cif;
++ void* args[5];
++ ffi_type* arg_types[5];
++
++ ffi_type s_type;
++ ffi_type *s_type_elements[3];
++
++ ffi_type l_type;
++ ffi_type *l_type_elements[6];
++
++ struct small_tag s1;
++ struct small_tag s2;
++ struct large_tag l1;
++
++ int n;
++ struct small_tag res;
++
++ s_type.size = 0;
++ s_type.alignment = 0;
++ s_type.type = FFI_TYPE_STRUCT;
++ s_type.elements = s_type_elements;
++
++ s_type_elements[0] = &ffi_type_uchar;
++ s_type_elements[1] = &ffi_type_uchar;
++ s_type_elements[2] = NULL;
++
++ l_type.size = 0;
++ l_type.alignment = 0;
++ l_type.type = FFI_TYPE_STRUCT;
++ l_type.elements = l_type_elements;
++
++ l_type_elements[0] = &ffi_type_uint;
++ l_type_elements[1] = &ffi_type_uint;
++ l_type_elements[2] = &ffi_type_uint;
++ l_type_elements[3] = &ffi_type_uint;
++ l_type_elements[4] = &ffi_type_uint;
++ l_type_elements[5] = NULL;
++
++ arg_types[0] = &ffi_type_sint;
++ arg_types[1] = &s_type;
++ arg_types[2] = &l_type;
++ arg_types[3] = &s_type;
++ arg_types[4] = NULL;
++
++ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 4, &s_type, arg_types) == FFI_OK);
++
++ s1.a = 5;
++ s1.b = 6;
++
++ l1.a = 10;
++ l1.b = 11;
++ l1.c = 12;
++ l1.d = 13;
++ l1.e = 14;
++
++ s2.a = 7;
++ s2.b = 8;
++
++ n = 41;
++
++ args[0] = &n;
++ args[1] = &s1;
++ args[2] = &l1;
++ args[3] = &s2;
++ args[4] = NULL;
++
++ ffi_call(&cif, FFI_FN(test_fn), &res, args);
++ /* { dg-output "5 6 10 11 12 13 14 7 8" } */
++ printf("res: %d %d\n", res.a, res.b);
++ /* { dg-output "\nres: 12 14" } */
++
++ return 0;
++}
+Index: libffi/testsuite/libffi.call/va_struct3.c
+===================================================================
+--- /dev/null
++++ libffi/testsuite/libffi.call/va_struct3.c
+@@ -0,0 +1,125 @@
++/* Area: ffi_call
++ Purpose: Test passing struct in variable argument lists.
++ Limitations: none.
++ PR: none.
++ Originator: ARM Ltd. */
++
++/* { dg-do run } */
++/* { dg-output "" { xfail avr32*-*-* } } */
++
++#include "ffitest.h"
++#include <stdarg.h>
++
++struct small_tag
++{
++ unsigned char a;
++ unsigned char b;
++};
++
++struct large_tag
++{
++ unsigned a;
++ unsigned b;
++ unsigned c;
++ unsigned d;
++ unsigned e;
++};
++
++static struct large_tag
++test_fn (int n, ...)
++{
++ va_list ap;
++ struct small_tag s1;
++ struct small_tag s2;
++ struct large_tag l;
++
++ va_start (ap, n);
++ s1 = va_arg (ap, struct small_tag);
++ l = va_arg (ap, struct large_tag);
++ s2 = va_arg (ap, struct small_tag);
++ printf ("%u %u %u %u %u %u %u %u %u\n", s1.a, s1.b, l.a, l.b, l.c, l.d, l.e,
++ s2.a, s2.b);
++ va_end (ap);
++ l.a += s1.a;
++ l.b += s1.b;
++ l.c += s2.a;
++ l.d += s2.b;
++ return l;
++}
++
++int
++main (void)
++{
++ ffi_cif cif;
++ void* args[5];
++ ffi_type* arg_types[5];
++
++ ffi_type s_type;
++ ffi_type *s_type_elements[3];
++
++ ffi_type l_type;
++ ffi_type *l_type_elements[6];
++
++ struct small_tag s1;
++ struct small_tag s2;
++ struct large_tag l1;
++
++ int n;
++ struct large_tag res;
++
++ s_type.size = 0;
++ s_type.alignment = 0;
++ s_type.type = FFI_TYPE_STRUCT;
++ s_type.elements = s_type_elements;
++
++ s_type_elements[0] = &ffi_type_uchar;
++ s_type_elements[1] = &ffi_type_uchar;
++ s_type_elements[2] = NULL;
++
++ l_type.size = 0;
++ l_type.alignment = 0;
++ l_type.type = FFI_TYPE_STRUCT;
++ l_type.elements = l_type_elements;
++
++ l_type_elements[0] = &ffi_type_uint;
++ l_type_elements[1] = &ffi_type_uint;
++ l_type_elements[2] = &ffi_type_uint;
++ l_type_elements[3] = &ffi_type_uint;
++ l_type_elements[4] = &ffi_type_uint;
++ l_type_elements[5] = NULL;
++
++ arg_types[0] = &ffi_type_sint;
++ arg_types[1] = &s_type;
++ arg_types[2] = &l_type;
++ arg_types[3] = &s_type;
++ arg_types[4] = NULL;
++
++ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 4, &l_type, arg_types) == FFI_OK);
++
++ s1.a = 5;
++ s1.b = 6;
++
++ l1.a = 10;
++ l1.b = 11;
++ l1.c = 12;
++ l1.d = 13;
++ l1.e = 14;
++
++ s2.a = 7;
++ s2.b = 8;
++
++ n = 41;
++
++ args[0] = &n;
++ args[1] = &s1;
++ args[2] = &l1;
++ args[3] = &s2;
++ args[4] = NULL;
++
++ ffi_call(&cif, FFI_FN(test_fn), &res, args);
++ /* { dg-output "5 6 10 11 12 13 14 7 8" } */
++ printf("res: %d %d %d %d %d\n", res.a, res.b, res.c, res.d, res.e);
++ /* { dg-output "\nres: 15 17 19 21 14" } */
++
++ return 0;
++}
mingw-check-fix
whitespace-fix
tile
+aarch64
--- /dev/null
+/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd.
+
+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. */
+
+#include <stdio.h>
+
+#include <ffi.h>
+#include <ffi_common.h>
+
+#include <stdlib.h>
+
+/* Stack alignment requirement in bytes */
+#define AARCH64_STACK_ALIGN 16
+
+#define N_X_ARG_REG 8
+#define N_V_ARG_REG 8
+
+#define AARCH64_FFI_WITH_V (1 << AARCH64_FFI_WITH_V_BIT)
+
+union _d
+{
+ UINT64 d;
+ UINT32 s[2];
+};
+
+struct call_context
+{
+ UINT64 x [AARCH64_N_XREG];
+ struct
+ {
+ union _d d[2];
+ } v [AARCH64_N_VREG];
+};
+
+static void *
+get_x_addr (struct call_context *context, unsigned n)
+{
+ return &context->x[n];
+}
+
+static void *
+get_s_addr (struct call_context *context, unsigned n)
+{
+#if defined __AARCH64EB__
+ return &context->v[n].d[1].s[1];
+#else
+ return &context->v[n].d[0].s[0];
+#endif
+}
+
+static void *
+get_d_addr (struct call_context *context, unsigned n)
+{
+#if defined __AARCH64EB__
+ return &context->v[n].d[1];
+#else
+ return &context->v[n].d[0];
+#endif
+}
+
+static void *
+get_v_addr (struct call_context *context, unsigned n)
+{
+ return &context->v[n];
+}
+
+/* Return the memory location at which a basic type would reside
+ were it to have been stored in register n. */
+
+static void *
+get_basic_type_addr (unsigned short type, struct call_context *context,
+ unsigned n)
+{
+ switch (type)
+ {
+ case FFI_TYPE_FLOAT:
+ return get_s_addr (context, n);
+ case FFI_TYPE_DOUBLE:
+ return get_d_addr (context, n);
+ case FFI_TYPE_LONGDOUBLE:
+ return get_v_addr (context, n);
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_INT:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+ return get_x_addr (context, n);
+ default:
+ FFI_ASSERT (0);
+ return NULL;
+ }
+}
+
+/* Return the alignment width for each of the basic types. */
+
+static size_t
+get_basic_type_alignment (unsigned short type)
+{
+ switch (type)
+ {
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_DOUBLE:
+ return sizeof (UINT64);
+ case FFI_TYPE_LONGDOUBLE:
+ return sizeof (long double);
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+ return sizeof (UINT64);
+
+ default:
+ FFI_ASSERT (0);
+ return 0;
+ }
+}
+
+/* Return the size in bytes for each of the basic types. */
+
+static size_t
+get_basic_type_size (unsigned short type)
+{
+ switch (type)
+ {
+ case FFI_TYPE_FLOAT:
+ return sizeof (UINT32);
+ case FFI_TYPE_DOUBLE:
+ return sizeof (UINT64);
+ case FFI_TYPE_LONGDOUBLE:
+ return sizeof (long double);
+ case FFI_TYPE_UINT8:
+ return sizeof (UINT8);
+ case FFI_TYPE_SINT8:
+ return sizeof (SINT8);
+ case FFI_TYPE_UINT16:
+ return sizeof (UINT16);
+ case FFI_TYPE_SINT16:
+ return sizeof (SINT16);
+ case FFI_TYPE_UINT32:
+ return sizeof (UINT32);
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT32:
+ return sizeof (SINT32);
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_UINT64:
+ return sizeof (UINT64);
+ case FFI_TYPE_SINT64:
+ return sizeof (SINT64);
+
+ default:
+ FFI_ASSERT (0);
+ return 0;
+ }
+}
+
+extern void
+ffi_call_SYSV (unsigned (*)(struct call_context *context, unsigned char *,
+ extended_cif *),
+ struct call_context *context,
+ extended_cif *,
+ unsigned,
+ void (*fn)(void));
+
+extern void
+ffi_closure_SYSV (ffi_closure *);
+
+/* Test for an FFI floating point representation. */
+
+static unsigned
+is_floating_type (unsigned short type)
+{
+ return (type == FFI_TYPE_FLOAT || type == FFI_TYPE_DOUBLE
+ || type == FFI_TYPE_LONGDOUBLE);
+}
+
+/* Test for a homogeneous structure. */
+
+static unsigned short
+get_homogeneous_type (ffi_type *ty)
+{
+ if (ty->type == FFI_TYPE_STRUCT && ty->elements)
+ {
+ unsigned i;
+ unsigned short candidate_type
+ = get_homogeneous_type (ty->elements[0]);
+ for (i =1; ty->elements[i]; i++)
+ {
+ unsigned short iteration_type = 0;
+ /* If we have a nested struct, we must find its homogeneous type.
+ If that fits with our candidate type, we are still
+ homogeneous. */
+ if (ty->elements[i]->type == FFI_TYPE_STRUCT
+ && ty->elements[i]->elements)
+ {
+ iteration_type = get_homogeneous_type (ty->elements[i]);
+ }
+ else
+ {
+ iteration_type = ty->elements[i]->type;
+ }
+
+ /* If we are not homogeneous, return FFI_TYPE_STRUCT. */
+ if (candidate_type != iteration_type)
+ return FFI_TYPE_STRUCT;
+ }
+ return candidate_type;
+ }
+
+ /* Base case, we have no more levels of nesting, so we
+ are a basic type, and so, trivially homogeneous in that type. */
+ return ty->type;
+}
+
+/* Determine the number of elements within a STRUCT.
+
+ Note, we must handle nested structs.
+
+ If ty is not a STRUCT this function will return 0. */
+
+static unsigned
+element_count (ffi_type *ty)
+{
+ if (ty->type == FFI_TYPE_STRUCT && ty->elements)
+ {
+ unsigned n;
+ unsigned elems = 0;
+ for (n = 0; ty->elements[n]; n++)
+ {
+ if (ty->elements[n]->type == FFI_TYPE_STRUCT
+ && ty->elements[n]->elements)
+ elems += element_count (ty->elements[n]);
+ else
+ elems++;
+ }
+ return elems;
+ }
+ return 0;
+}
+
+/* Test for a homogeneous floating point aggregate.
+
+ A homogeneous floating point aggregate is a homogeneous aggregate of
+ a half- single- or double- precision floating point type with one
+ to four elements. Note that this includes nested structs of the
+ basic type. */
+
+static int
+is_hfa (ffi_type *ty)
+{
+ if (ty->type == FFI_TYPE_STRUCT
+ && ty->elements[0]
+ && is_floating_type (get_homogeneous_type (ty)))
+ {
+ unsigned n = element_count (ty);
+ return n >= 1 && n <= 4;
+ }
+ return 0;
+}
+
+/* Test if an ffi_type is a candidate for passing in a register.
+
+ This test does not check that sufficient registers of the
+ appropriate class are actually available, merely that IFF
+ sufficient registers are available then the argument will be passed
+ in register(s).
+
+ Note that an ffi_type that is deemed to be a register candidate
+ will always be returned in registers.
+
+ Returns 1 if a register candidate else 0. */
+
+static int
+is_register_candidate (ffi_type *ty)
+{
+ switch (ty->type)
+ {
+ case FFI_TYPE_VOID:
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_DOUBLE:
+ case FFI_TYPE_LONGDOUBLE:
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT64:
+ return 1;
+
+ case FFI_TYPE_STRUCT:
+ if (is_hfa (ty))
+ {
+ return 1;
+ }
+ else if (ty->size > 16)
+ {
+ /* Too large. Will be replaced with a pointer to memory. The
+ pointer MAY be passed in a register, but the value will
+ not. This test specifically fails since the argument will
+ never be passed by value in registers. */
+ return 0;
+ }
+ else
+ {
+ /* Might be passed in registers depending on the number of
+ registers required. */
+ return (ty->size + 7) / 8 < N_X_ARG_REG;
+ }
+ break;
+
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
+
+ return 0;
+}
+
+/* Test if an ffi_type argument or result is a candidate for a vector
+ register. */
+
+static int
+is_v_register_candidate (ffi_type *ty)
+{
+ return is_floating_type (ty->type)
+ || (ty->type == FFI_TYPE_STRUCT && is_hfa (ty));
+}
+
+/* Representation of the procedure call argument marshalling
+ state.
+
+ The terse state variable names match the names used in the AARCH64
+ PCS. */
+
+struct arg_state
+{
+ unsigned ngrn; /* Next general-purpose register number. */
+ unsigned nsrn; /* Next vector register number. */
+ unsigned nsaa; /* Next stack offset. */
+};
+
+/* Initialize a procedure call argument marshalling state. */
+static void
+arg_init (struct arg_state *state, unsigned call_frame_size)
+{
+ state->ngrn = 0;
+ state->nsrn = 0;
+ state->nsaa = 0;
+}
+
+/* Return the number of available consecutive core argument
+ registers. */
+
+static unsigned
+available_x (struct arg_state *state)
+{
+ return N_X_ARG_REG - state->ngrn;
+}
+
+/* Return the number of available consecutive vector argument
+ registers. */
+
+static unsigned
+available_v (struct arg_state *state)
+{
+ return N_V_ARG_REG - state->nsrn;
+}
+
+static void *
+allocate_to_x (struct call_context *context, struct arg_state *state)
+{
+ FFI_ASSERT (state->ngrn < N_X_ARG_REG)
+ return get_x_addr (context, (state->ngrn)++);
+}
+
+static void *
+allocate_to_s (struct call_context *context, struct arg_state *state)
+{
+ FFI_ASSERT (state->nsrn < N_V_ARG_REG)
+ return get_s_addr (context, (state->nsrn)++);
+}
+
+static void *
+allocate_to_d (struct call_context *context, struct arg_state *state)
+{
+ FFI_ASSERT (state->nsrn < N_V_ARG_REG)
+ return get_d_addr (context, (state->nsrn)++);
+}
+
+static void *
+allocate_to_v (struct call_context *context, struct arg_state *state)
+{
+ FFI_ASSERT (state->nsrn < N_V_ARG_REG)
+ return get_v_addr (context, (state->nsrn)++);
+}
+
+/* Allocate an aligned slot on the stack and return a pointer to it. */
+static void *
+allocate_to_stack (struct arg_state *state, void *stack, unsigned alignment,
+ unsigned size)
+{
+ void *allocation;
+
+ /* Round up the NSAA to the larger of 8 or the natural
+ alignment of the argument's type. */
+ state->nsaa = ALIGN (state->nsaa, alignment);
+ state->nsaa = ALIGN (state->nsaa, alignment);
+ state->nsaa = ALIGN (state->nsaa, 8);
+
+ allocation = stack + state->nsaa;
+
+ state->nsaa += size;
+ return allocation;
+}
+
+static void
+copy_basic_type (void *dest, void *source, unsigned short type)
+{
+ /* This is neccessary to ensure that basic types are copied
+ sign extended to 64-bits as libffi expects. */
+ switch (type)
+ {
+ case FFI_TYPE_FLOAT:
+ *(float *) dest = *(float *) source;
+ break;
+ case FFI_TYPE_DOUBLE:
+ *(double *) dest = *(double *) source;
+ break;
+ case FFI_TYPE_LONGDOUBLE:
+ *(long double *) dest = *(long double *) source;
+ break;
+ case FFI_TYPE_UINT8:
+ *(ffi_arg *) dest = *(UINT8 *) source;
+ break;
+ case FFI_TYPE_SINT8:
+ *(ffi_sarg *) dest = *(SINT8 *) source;
+ break;
+ case FFI_TYPE_UINT16:
+ *(ffi_arg *) dest = *(UINT16 *) source;
+ break;
+ case FFI_TYPE_SINT16:
+ *(ffi_sarg *) dest = *(SINT16 *) source;
+ break;
+ case FFI_TYPE_UINT32:
+ *(ffi_arg *) dest = *(UINT32 *) source;
+ break;
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT32:
+ *(ffi_sarg *) dest = *(SINT32 *) source;
+ break;
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_UINT64:
+ *(ffi_arg *) dest = *(UINT64 *) source;
+ break;
+ case FFI_TYPE_SINT64:
+ *(ffi_sarg *) dest = *(SINT64 *) source;
+ break;
+
+ default:
+ FFI_ASSERT (0);
+ }
+}
+
+static void
+copy_hfa_to_reg_or_stack (void *memory,
+ ffi_type *ty,
+ struct call_context *context,
+ unsigned char *stack,
+ struct arg_state *state)
+{
+ unsigned elems = element_count (ty);
+ if (available_v (state) < elems)
+ {
+ /* There are insufficient V registers. Further V register allocations
+ are prevented, the NSAA is adjusted (by allocate_to_stack ())
+ and the argument is copied to memory at the adjusted NSAA. */
+ state->nsrn = N_V_ARG_REG;
+ memcpy (allocate_to_stack (state, stack, ty->alignment, ty->size),
+ memory,
+ ty->size);
+ }
+ else
+ {
+ int i;
+ unsigned short type = get_homogeneous_type (ty);
+ unsigned elems = element_count (ty);
+ for (i = 0; i < elems; i++)
+ {
+ void *reg = allocate_to_v (context, state);
+ copy_basic_type (reg, memory, type);
+ memory += get_basic_type_size (type);
+ }
+ }
+}
+
+/* Either allocate an appropriate register for the argument type, or if
+ none are available, allocate a stack slot and return a pointer
+ to the allocated space. */
+
+static void *
+allocate_to_register_or_stack (struct call_context *context,
+ unsigned char *stack,
+ struct arg_state *state,
+ unsigned short type)
+{
+ size_t alignment = get_basic_type_alignment (type);
+ size_t size = alignment;
+ switch (type)
+ {
+ case FFI_TYPE_FLOAT:
+ /* This is the only case for which the allocated stack size
+ should not match the alignment of the type. */
+ size = sizeof (UINT32);
+ /* Fall through. */
+ case FFI_TYPE_DOUBLE:
+ if (state->nsrn < N_V_ARG_REG)
+ return allocate_to_d (context, state);
+ state->nsrn = N_V_ARG_REG;
+ break;
+ case FFI_TYPE_LONGDOUBLE:
+ if (state->nsrn < N_V_ARG_REG)
+ return allocate_to_v (context, state);
+ state->nsrn = N_V_ARG_REG;
+ break;
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_INT:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+ if (state->ngrn < N_X_ARG_REG)
+ return allocate_to_x (context, state);
+ state->ngrn = N_X_ARG_REG;
+ break;
+ default:
+ FFI_ASSERT (0);
+ }
+
+ return allocate_to_stack (state, stack, alignment, size);
+}
+
+/* Copy a value to an appropriate register, or if none are
+ available, to the stack. */
+
+static void
+copy_to_register_or_stack (struct call_context *context,
+ unsigned char *stack,
+ struct arg_state *state,
+ void *value,
+ unsigned short type)
+{
+ copy_basic_type (
+ allocate_to_register_or_stack (context, stack, state, type),
+ value,
+ type);
+}
+
+/* Marshall the arguments from FFI representation to procedure call
+ context and stack. */
+
+static unsigned
+aarch64_prep_args (struct call_context *context, unsigned char *stack,
+ extended_cif *ecif)
+{
+ int i;
+ struct arg_state state;
+
+ arg_init (&state, ALIGN(ecif->cif->bytes, 16));
+
+ for (i = 0; i < ecif->cif->nargs; i++)
+ {
+ ffi_type *ty = ecif->cif->arg_types[i];
+ switch (ty->type)
+ {
+ case FFI_TYPE_VOID:
+ FFI_ASSERT (0);
+ break;
+
+ /* If the argument is a basic type the argument is allocated to an
+ appropriate register, or if none are available, to the stack. */
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_DOUBLE:
+ case FFI_TYPE_LONGDOUBLE:
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+ copy_to_register_or_stack (context, stack, &state,
+ ecif->avalue[i], ty->type);
+ break;
+
+ case FFI_TYPE_STRUCT:
+ if (is_hfa (ty))
+ {
+ copy_hfa_to_reg_or_stack (ecif->avalue[i], ty, context,
+ stack, &state);
+ }
+ else if (ty->size > 16)
+ {
+ /* If the argument is a composite type that is larger than 16
+ bytes, then the argument has been copied to memory, and
+ the argument is replaced by a pointer to the copy. */
+
+ copy_to_register_or_stack (context, stack, &state,
+ &(ecif->avalue[i]), FFI_TYPE_POINTER);
+ }
+ else if (available_x (&state) >= (ty->size + 7) / 8)
+ {
+ /* If the argument is a composite type and the size in
+ double-words is not more than the number of available
+ X registers, then the argument is copied into consecutive
+ X registers. */
+ int j;
+ for (j = 0; j < (ty->size + 7) / 8; j++)
+ {
+ memcpy (allocate_to_x (context, &state),
+ &(((UINT64 *) ecif->avalue[i])[j]),
+ sizeof (UINT64));
+ }
+ }
+ else
+ {
+ /* Otherwise, there are insufficient X registers. Further X
+ register allocations are prevented, the NSAA is adjusted
+ (by allocate_to_stack ()) and the argument is copied to
+ memory at the adjusted NSAA. */
+ state.ngrn = N_X_ARG_REG;
+
+ memcpy (allocate_to_stack (&state, stack, ty->alignment,
+ ty->size), ecif->avalue + i, ty->size);
+ }
+ break;
+
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
+ }
+
+ return ecif->cif->aarch64_flags;
+}
+
+ffi_status
+ffi_prep_cif_machdep (ffi_cif *cif)
+{
+ /* Round the stack up to a multiple of the stack alignment requirement. */
+ cif->bytes =
+ (cif->bytes + (AARCH64_STACK_ALIGN - 1)) & ~ (AARCH64_STACK_ALIGN - 1);
+
+ /* Initialize our flags. We are interested if this CIF will touch a
+ vector register, if so we will enable context save and load to
+ those registers, otherwise not. This is intended to be friendly
+ to lazy float context switching in the kernel. */
+ cif->aarch64_flags = 0;
+
+ if (is_v_register_candidate (cif->rtype))
+ {
+ cif->aarch64_flags |= AARCH64_FFI_WITH_V;
+ }
+ else
+ {
+ int i;
+ for (i = 0; i < cif->nargs; i++)
+ if (is_v_register_candidate (cif->arg_types[i]))
+ {
+ cif->aarch64_flags |= AARCH64_FFI_WITH_V;
+ break;
+ }
+ }
+
+ return FFI_OK;
+}
+
+/* Call a function with the provided arguments and capture the return
+ value. */
+void
+ffi_call (ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
+{
+ extended_cif ecif;
+
+ ecif.cif = cif;
+ ecif.avalue = avalue;
+ ecif.rvalue = rvalue;
+
+ switch (cif->abi)
+ {
+ case FFI_SYSV:
+ {
+ struct call_context context;
+ unsigned stack_bytes;
+
+ /* Figure out the total amount of stack space we need, the
+ above call frame space needs to be 16 bytes aligned to
+ ensure correct alignment of the first object inserted in
+ that space hence the ALIGN applied to cif->bytes.*/
+ stack_bytes = ALIGN(cif->bytes, 16);
+
+ memset (&context, 0, sizeof (context));
+ if (is_register_candidate (cif->rtype))
+ {
+ ffi_call_SYSV (aarch64_prep_args, &context, &ecif, stack_bytes, fn);
+ switch (cif->rtype->type)
+ {
+ case FFI_TYPE_VOID:
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_DOUBLE:
+ case FFI_TYPE_LONGDOUBLE:
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT64:
+ {
+ void *addr = get_basic_type_addr (cif->rtype->type,
+ &context, 0);
+ copy_basic_type (rvalue, addr, cif->rtype->type);
+ break;
+ }
+
+ case FFI_TYPE_STRUCT:
+ if (is_hfa (cif->rtype))
+ {
+ int j;
+ unsigned short type = get_homogeneous_type (cif->rtype);
+ unsigned elems = element_count (cif->rtype);
+ for (j = 0; j < elems; j++)
+ {
+ void *reg = get_basic_type_addr (type, &context, j);
+ copy_basic_type (rvalue, reg, type);
+ rvalue += get_basic_type_size (type);
+ }
+ }
+ else if ((cif->rtype->size + 7) / 8 < N_X_ARG_REG)
+ {
+ unsigned size = ALIGN (cif->rtype->size, sizeof (UINT64));
+ memcpy (rvalue, get_x_addr (&context, 0), size);
+ }
+ else
+ {
+ FFI_ASSERT (0);
+ }
+ break;
+
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
+ }
+ else
+ {
+ memcpy (get_x_addr (&context, 8), &rvalue, sizeof (UINT64));
+ ffi_call_SYSV (aarch64_prep_args, &context, &ecif,
+ stack_bytes, fn);
+ }
+ break;
+ }
+
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
+}
+
+static unsigned char trampoline [] =
+{ 0x70, 0x00, 0x00, 0x58, /* ldr x16, 1f */
+ 0x91, 0x00, 0x00, 0x10, /* adr x17, 2f */
+ 0x00, 0x02, 0x1f, 0xd6 /* br x16 */
+};
+
+/* Build a trampoline. */
+
+#define FFI_INIT_TRAMPOLINE(TRAMP,FUN,CTX,FLAGS) \
+ ({unsigned char *__tramp = (unsigned char*)(TRAMP); \
+ UINT64 __fun = (UINT64)(FUN); \
+ UINT64 __ctx = (UINT64)(CTX); \
+ UINT64 __flags = (UINT64)(FLAGS); \
+ memcpy (__tramp, trampoline, sizeof (trampoline)); \
+ memcpy (__tramp + 12, &__fun, sizeof (__fun)); \
+ memcpy (__tramp + 20, &__ctx, sizeof (__ctx)); \
+ memcpy (__tramp + 28, &__flags, sizeof (__flags)); \
+ __clear_cache(__tramp, __tramp + FFI_TRAMPOLINE_SIZE); \
+ })
+
+ffi_status
+ffi_prep_closure_loc (ffi_closure* closure,
+ ffi_cif* cif,
+ void (*fun)(ffi_cif*,void*,void**,void*),
+ void *user_data,
+ void *codeloc)
+{
+ if (cif->abi != FFI_SYSV)
+ return FFI_BAD_ABI;
+
+ FFI_INIT_TRAMPOLINE (&closure->tramp[0], &ffi_closure_SYSV, codeloc,
+ cif->aarch64_flags);
+
+ closure->cif = cif;
+ closure->user_data = user_data;
+ closure->fun = fun;
+
+ return FFI_OK;
+}
+
+/* Primary handler to setup and invoke a function within a closure.
+
+ A closure when invoked enters via the assembler wrapper
+ ffi_closure_SYSV(). The wrapper allocates a call context on the
+ stack, saves the interesting registers (from the perspective of
+ the calling convention) into the context then passes control to
+ ffi_closure_SYSV_inner() passing the saved context and a pointer to
+ the stack at the point ffi_closure_SYSV() was invoked.
+
+ On the return path the assembler wrapper will reload call context
+ regsiters.
+
+ ffi_closure_SYSV_inner() marshalls the call context into ffi value
+ desriptors, invokes the wrapped function, then marshalls the return
+ value back into the call context. */
+
+void
+ffi_closure_SYSV_inner (ffi_closure *closure, struct call_context *context,
+ void *stack)
+{
+ ffi_cif *cif = closure->cif;
+ void **avalue = (void**) alloca (cif->nargs * sizeof (void*));
+ void *rvalue = NULL;
+ int i;
+ struct arg_state state;
+
+ arg_init (&state, ALIGN(cif->bytes, 16));
+
+ for (i = 0; i < cif->nargs; i++)
+ {
+ ffi_type *ty = cif->arg_types[i];
+
+ switch (ty->type)
+ {
+ case FFI_TYPE_VOID:
+ FFI_ASSERT (0);
+ break;
+
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_INT:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_DOUBLE:
+ case FFI_TYPE_LONGDOUBLE:
+ avalue[i] = allocate_to_register_or_stack (context, stack,
+ &state, ty->type);
+ break;
+
+ case FFI_TYPE_STRUCT:
+ if (is_hfa (ty))
+ {
+ unsigned n = element_count (ty);
+ if (available_v (&state) < n)
+ {
+ state.nsrn = N_V_ARG_REG;
+ avalue[i] = allocate_to_stack (&state, stack, ty->alignment,
+ ty->size);
+ }
+ else
+ {
+ switch (get_homogeneous_type (ty))
+ {
+ case FFI_TYPE_FLOAT:
+ {
+ /* Eeek! We need a pointer to the structure,
+ however the homogeneous float elements are
+ being passed in individual S registers,
+ therefore the structure is not represented as
+ a contiguous sequence of bytes in our saved
+ register context. We need to fake up a copy
+ of the structure layed out in memory
+ correctly. The fake can be tossed once the
+ closure function has returned hence alloca()
+ is sufficient. */
+ int j;
+ UINT32 *p = avalue[i] = alloca (ty->size);
+ for (j = 0; j < element_count (ty); j++)
+ memcpy (&p[j],
+ allocate_to_s (context, &state),
+ sizeof (*p));
+ break;
+ }
+
+ case FFI_TYPE_DOUBLE:
+ {
+ /* Eeek! We need a pointer to the structure,
+ however the homogeneous float elements are
+ being passed in individual S registers,
+ therefore the structure is not represented as
+ a contiguous sequence of bytes in our saved
+ register context. We need to fake up a copy
+ of the structure layed out in memory
+ correctly. The fake can be tossed once the
+ closure function has returned hence alloca()
+ is sufficient. */
+ int j;
+ UINT64 *p = avalue[i] = alloca (ty->size);
+ for (j = 0; j < element_count (ty); j++)
+ memcpy (&p[j],
+ allocate_to_d (context, &state),
+ sizeof (*p));
+ break;
+ }
+
+ case FFI_TYPE_LONGDOUBLE:
+ memcpy (&avalue[i],
+ allocate_to_v (context, &state),
+ sizeof (*avalue));
+ break;
+
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
+ }
+ }
+ else if (ty->size > 16)
+ {
+ /* Replace Composite type of size greater than 16 with a
+ pointer. */
+ memcpy (&avalue[i],
+ allocate_to_register_or_stack (context, stack,
+ &state, FFI_TYPE_POINTER),
+ sizeof (avalue[i]));
+ }
+ else if (available_x (&state) >= (ty->size + 7) / 8)
+ {
+ avalue[i] = get_x_addr (context, state.ngrn);
+ state.ngrn += (ty->size + 7) / 8;
+ }
+ else
+ {
+ state.ngrn = N_X_ARG_REG;
+
+ avalue[i] = allocate_to_stack (&state, stack, ty->alignment,
+ ty->size);
+ }
+ break;
+
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
+ }
+
+ /* Figure out where the return value will be passed, either in
+ registers or in a memory block allocated by the caller and passed
+ in x8. */
+
+ if (is_register_candidate (cif->rtype))
+ {
+ /* Register candidates are *always* returned in registers. */
+
+ /* Allocate a scratchpad for the return value, we will let the
+ callee scrible the result into the scratch pad then move the
+ contents into the appropriate return value location for the
+ call convention. */
+ rvalue = alloca (cif->rtype->size);
+ (closure->fun) (cif, rvalue, avalue, closure->user_data);
+
+ /* Copy the return value into the call context so that it is returned
+ as expected to our caller. */
+ switch (cif->rtype->type)
+ {
+ case FFI_TYPE_VOID:
+ break;
+
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_DOUBLE:
+ case FFI_TYPE_LONGDOUBLE:
+ {
+ void *addr = get_basic_type_addr (cif->rtype->type, context, 0);
+ copy_basic_type (addr, rvalue, cif->rtype->type);
+ break;
+ }
+ case FFI_TYPE_STRUCT:
+ if (is_hfa (cif->rtype))
+ {
+ int i;
+ unsigned short type = get_homogeneous_type (cif->rtype);
+ unsigned elems = element_count (cif->rtype);
+ for (i = 0; i < elems; i++)
+ {
+ void *reg = get_basic_type_addr (type, context, i);
+ copy_basic_type (reg, rvalue, type);
+ rvalue += get_basic_type_size (type);
+ }
+ }
+ else if ((cif->rtype->size + 7) / 8 < N_X_ARG_REG)
+ {
+ unsigned size = ALIGN (cif->rtype->size, sizeof (UINT64)) ;
+ memcpy (get_x_addr (context, 0), rvalue, size);
+ }
+ else
+ {
+ FFI_ASSERT (0);
+ }
+ break;
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
+ }
+ else
+ {
+ memcpy (&rvalue, get_x_addr (context, 8), sizeof (UINT64));
+ (closure->fun) (cif, rvalue, avalue, closure->user_data);
+ }
+}
+
--- /dev/null
+/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd.
+
+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. */
+
+#ifndef LIBFFI_TARGET_H
+#define LIBFFI_TARGET_H
+
+#ifndef LIBFFI_H
+#error "Please do not include ffitarget.h directly into your source. Use ffi.h instead."
+#endif
+
+#ifndef LIBFFI_ASM
+typedef unsigned long ffi_arg;
+typedef signed long ffi_sarg;
+
+typedef enum ffi_abi
+ {
+ FFI_FIRST_ABI = 0,
+ FFI_SYSV,
+ FFI_LAST_ABI,
+ FFI_DEFAULT_ABI = FFI_SYSV
+ } ffi_abi;
+#endif
+
+/* ---- Definitions for closures ----------------------------------------- */
+
+#define FFI_CLOSURES 1
+#define FFI_TRAMPOLINE_SIZE 36
+#define FFI_NATIVE_RAW_API 0
+
+/* ---- Internal ---- */
+
+
+#define FFI_EXTRA_CIF_FIELDS unsigned aarch64_flags
+
+#define AARCH64_FFI_WITH_V_BIT 0
+
+#define AARCH64_N_XREG 32
+#define AARCH64_N_VREG 32
+#define AARCH64_CALL_CONTEXT_SIZE (AARCH64_N_XREG * 8 + AARCH64_N_VREG * 16)
+
+#endif
--- /dev/null
+/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd.
+
+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. */
+
+#define LIBFFI_ASM
+#include <fficonfig.h>
+#include <ffi.h>
+
+#define cfi_adjust_cfa_offset(off) .cfi_adjust_cfa_offset off
+#define cfi_rel_offset(reg, off) .cfi_rel_offset reg, off
+#define cfi_restore(reg) .cfi_restore reg
+#define cfi_def_cfa_register(reg) .cfi_def_cfa_register reg
+
+ .text
+ .globl ffi_call_SYSV
+ .type ffi_call_SYSV, #function
+
+/* ffi_call_SYSV()
+
+ Create a stack frame, setup an argument context, call the callee
+ and extract the result.
+
+ The maximum required argument stack size is provided,
+ ffi_call_SYSV() allocates that stack space then calls the
+ prepare_fn to populate register context and stack. The
+ argument passing registers are loaded from the register
+ context and the callee called, on return the register passing
+ register are saved back to the context. Our caller will
+ extract the return value from the final state of the saved
+ register context.
+
+ Prototype:
+
+ extern unsigned
+ ffi_call_SYSV (void (*)(struct call_context *context, unsigned char *,
+ extended_cif *),
+ struct call_context *context,
+ extended_cif *,
+ unsigned required_stack_size,
+ void (*fn)(void));
+
+ Therefore on entry we have:
+
+ x0 prepare_fn
+ x1 &context
+ x2 &ecif
+ x3 bytes
+ x4 fn
+
+ This function uses the following stack frame layout:
+
+ ==
+ saved x30(lr)
+ x29(fp)-> saved x29(fp)
+ saved x24
+ saved x23
+ saved x22
+ sp' -> saved x21
+ ...
+ sp -> (constructed callee stack arguments)
+ ==
+
+ Voila! */
+
+#define ffi_call_SYSV_FS (8 * 4)
+
+ .cfi_startproc
+ffi_call_SYSV:
+ stp x29, x30, [sp, #-16]!
+ cfi_adjust_cfa_offset (16)
+ cfi_rel_offset (x29, 0)
+ cfi_rel_offset (x30, 8)
+
+ mov x29, sp
+ cfi_def_cfa_register (x29)
+ sub sp, sp, #ffi_call_SYSV_FS
+
+ stp x21, x22, [sp, 0]
+ cfi_rel_offset (x21, 0 - ffi_call_SYSV_FS)
+ cfi_rel_offset (x22, 8 - ffi_call_SYSV_FS)
+
+ stp x23, x24, [sp, 16]
+ cfi_rel_offset (x23, 16 - ffi_call_SYSV_FS)
+ cfi_rel_offset (x24, 24 - ffi_call_SYSV_FS)
+
+ mov x21, x1
+ mov x22, x2
+ mov x24, x4
+
+ /* Allocate the stack space for the actual arguments, many
+ arguments will be passed in registers, but we assume
+ worst case and allocate sufficient stack for ALL of
+ the arguments. */
+ sub sp, sp, x3
+
+ /* unsigned (*prepare_fn) (struct call_context *context,
+ unsigned char *stack, extended_cif *ecif);
+ */
+ mov x23, x0
+ mov x0, x1
+ mov x1, sp
+ /* x2 already in place */
+ blr x23
+
+ /* Preserve the flags returned. */
+ mov x23, x0
+
+ /* Figure out if we should touch the vector registers. */
+ tbz x23, #AARCH64_FFI_WITH_V_BIT, 1f
+
+ /* Load the vector argument passing registers. */
+ ldp q0, q1, [x21, #8*32 + 0]
+ ldp q2, q3, [x21, #8*32 + 32]
+ ldp q4, q5, [x21, #8*32 + 64]
+ ldp q6, q7, [x21, #8*32 + 96]
+1:
+ /* Load the core argument passing registers. */
+ ldp x0, x1, [x21, #0]
+ ldp x2, x3, [x21, #16]
+ ldp x4, x5, [x21, #32]
+ ldp x6, x7, [x21, #48]
+
+ /* Don't forget x8 which may be holding the address of a return buffer.
+ */
+ ldr x8, [x21, #8*8]
+
+ blr x24
+
+ /* Save the core argument passing registers. */
+ stp x0, x1, [x21, #0]
+ stp x2, x3, [x21, #16]
+ stp x4, x5, [x21, #32]
+ stp x6, x7, [x21, #48]
+
+ /* Note nothing useful ever comes back in x8! */
+
+ /* Figure out if we should touch the vector registers. */
+ tbz x23, #AARCH64_FFI_WITH_V_BIT, 1f
+
+ /* Save the vector argument passing registers. */
+ stp q0, q1, [x21, #8*32 + 0]
+ stp q2, q3, [x21, #8*32 + 32]
+ stp q4, q5, [x21, #8*32 + 64]
+ stp q6, q7, [x21, #8*32 + 96]
+1:
+ /* All done, unwind our stack frame. */
+ ldp x21, x22, [x29, # - ffi_call_SYSV_FS]
+ cfi_restore (x21)
+ cfi_restore (x22)
+
+ ldp x23, x24, [x29, # - ffi_call_SYSV_FS + 16]
+ cfi_restore (x23)
+ cfi_restore (x24)
+
+ mov sp, x29
+ cfi_def_cfa_register (sp)
+
+ ldp x29, x30, [sp], #16
+ cfi_adjust_cfa_offset (-16)
+ cfi_restore (x29)
+ cfi_restore (x30)
+
+ ret
+
+ .cfi_endproc
+ .size ffi_call_SYSV, .-ffi_call_SYSV
+
+#define ffi_closure_SYSV_FS (8 * 2 + AARCH64_CALL_CONTEXT_SIZE)
+
+/* ffi_closure_SYSV
+
+ Closure invocation glue. This is the low level code invoked directly by
+ the closure trampoline to setup and call a closure.
+
+ On entry x17 points to a struct trampoline_data, x16 has been clobbered
+ all other registers are preserved.
+
+ We allocate a call context and save the argument passing registers,
+ then invoked the generic C ffi_closure_SYSV_inner() function to do all
+ the real work, on return we load the result passing registers back from
+ the call context.
+
+ On entry
+
+ extern void
+ ffi_closure_SYSV (struct trampoline_data *);
+
+ struct trampoline_data
+ {
+ UINT64 *ffi_closure;
+ UINT64 flags;
+ };
+
+ This function uses the following stack frame layout:
+
+ ==
+ saved x30(lr)
+ x29(fp)-> saved x29(fp)
+ saved x22
+ saved x21
+ ...
+ sp -> call_context
+ ==
+
+ Voila! */
+
+ .text
+ .globl ffi_closure_SYSV
+ .cfi_startproc
+ffi_closure_SYSV:
+ stp x29, x30, [sp, #-16]!
+ cfi_adjust_cfa_offset (16)
+ cfi_rel_offset (x29, 0)
+ cfi_rel_offset (x30, 8)
+
+ mov x29, sp
+
+ sub sp, sp, #ffi_closure_SYSV_FS
+ cfi_adjust_cfa_offset (ffi_closure_SYSV_FS)
+
+ stp x21, x22, [x29, #-16]
+ cfi_rel_offset (x21, 0)
+ cfi_rel_offset (x22, 8)
+
+ /* Load x21 with &call_context. */
+ mov x21, sp
+ /* Preserve our struct trampoline_data * */
+ mov x22, x17
+
+ /* Save the rest of the argument passing registers. */
+ stp x0, x1, [x21, #0]
+ stp x2, x3, [x21, #16]
+ stp x4, x5, [x21, #32]
+ stp x6, x7, [x21, #48]
+ /* Don't forget we may have been given a result scratch pad address.
+ */
+ str x8, [x21, #64]
+
+ /* Figure out if we should touch the vector registers. */
+ ldr x0, [x22, #8]
+ tbz x0, #AARCH64_FFI_WITH_V_BIT, 1f
+
+ /* Save the argument passing vector registers. */
+ stp q0, q1, [x21, #8*32 + 0]
+ stp q2, q3, [x21, #8*32 + 32]
+ stp q4, q5, [x21, #8*32 + 64]
+ stp q6, q7, [x21, #8*32 + 96]
+1:
+ /* Load &ffi_closure.. */
+ ldr x0, [x22, #0]
+ mov x1, x21
+ /* Compute the location of the stack at the point that the
+ trampoline was called. */
+ add x2, x29, #16
+
+ bl ffi_closure_SYSV_inner
+
+ /* Figure out if we should touch the vector registers. */
+ ldr x0, [x22, #8]
+ tbz x0, #AARCH64_FFI_WITH_V_BIT, 1f
+
+ /* Load the result passing vector registers. */
+ ldp q0, q1, [x21, #8*32 + 0]
+ ldp q2, q3, [x21, #8*32 + 32]
+ ldp q4, q5, [x21, #8*32 + 64]
+ ldp q6, q7, [x21, #8*32 + 96]
+1:
+ /* Load the result passing core registers. */
+ ldp x0, x1, [x21, #0]
+ ldp x2, x3, [x21, #16]
+ ldp x4, x5, [x21, #32]
+ ldp x6, x7, [x21, #48]
+ /* Note nothing usefull is returned in x8. */
+
+ /* We are done, unwind our frame. */
+ ldp x21, x22, [x29, #-16]
+ cfi_restore (x21)
+ cfi_restore (x22)
+
+ mov sp, x29
+ cfi_adjust_cfa_offset (-ffi_closure_SYSV_FS)
+
+ ldp x29, x30, [sp], #16
+ cfi_adjust_cfa_offset (-16)
+ cfi_restore (x29)
+ cfi_restore (x30)
+
+ ret
+ .cfi_endproc
+ .size ffi_closure_SYSV, .-ffi_closure_SYSV
lappend options "libs= -lffi"
+ if { [string match "aarch64*-*-linux*" $target_triplet] } {
+ lappend options "libs= -lpthread"
+ }
+
verbose "options: $options"
return [target_compile $source $dest $type $options]
}
--- /dev/null
+/* Area: ffi_call, closure_call
+ Purpose: Test doubles passed in variable argument lists.
+ Limitations: none.
+ PR: none.
+ Originator: Blake Chaffin 6/6/2007 */
+
+/* { dg-do run } */
+/* { dg-output "" { xfail avr32*-*-* } } */
+#include "ffitest.h"
+
+struct small_tag
+{
+ unsigned char a;
+ unsigned char b;
+};
+
+struct large_tag
+{
+ unsigned a;
+ unsigned b;
+ unsigned c;
+ unsigned d;
+ unsigned e;
+};
+
+static void
+test_fn (ffi_cif* cif __UNUSED__, void* resp,
+ void** args, void* userdata __UNUSED__)
+{
+ int n = *(int*)args[0];
+ struct small_tag s1 = * (struct small_tag *) args[1];
+ struct large_tag l1 = * (struct large_tag *) args[2];
+ struct small_tag s2 = * (struct small_tag *) args[3];
+
+ printf ("%d %d %d %d %d %d %d %d %d %d\n", n, s1.a, s1.b,
+ l1.a, l1.b, l1.c, l1.d, l1.e,
+ s2.a, s2.b);
+ * (int*) resp = 42;
+}
+
+int
+main (void)
+{
+ ffi_cif cif;
+ void *code;
+ ffi_closure *pcl = ffi_closure_alloc (sizeof (ffi_closure), &code);
+ ffi_type* arg_types[5];
+
+ ffi_arg res = 0;
+
+ ffi_type s_type;
+ ffi_type *s_type_elements[3];
+
+ ffi_type l_type;
+ ffi_type *l_type_elements[6];
+
+ struct small_tag s1;
+ struct small_tag s2;
+ struct large_tag l1;
+
+ int si;
+
+ s_type.size = 0;
+ s_type.alignment = 0;
+ s_type.type = FFI_TYPE_STRUCT;
+ s_type.elements = s_type_elements;
+
+ s_type_elements[0] = &ffi_type_uchar;
+ s_type_elements[1] = &ffi_type_uchar;
+ s_type_elements[2] = NULL;
+
+ l_type.size = 0;
+ l_type.alignment = 0;
+ l_type.type = FFI_TYPE_STRUCT;
+ l_type.elements = l_type_elements;
+
+ l_type_elements[0] = &ffi_type_uint;
+ l_type_elements[1] = &ffi_type_uint;
+ l_type_elements[2] = &ffi_type_uint;
+ l_type_elements[3] = &ffi_type_uint;
+ l_type_elements[4] = &ffi_type_uint;
+ l_type_elements[5] = NULL;
+
+ arg_types[0] = &ffi_type_sint;
+ arg_types[1] = &s_type;
+ arg_types[2] = &l_type;
+ arg_types[3] = &s_type;
+ arg_types[4] = NULL;
+
+ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 4, &ffi_type_sint,
+ arg_types) == FFI_OK);
+
+ si = 4;
+ s1.a = 5;
+ s1.b = 6;
+
+ s2.a = 20;
+ s2.b = 21;
+
+ l1.a = 10;
+ l1.b = 11;
+ l1.c = 12;
+ l1.d = 13;
+ l1.e = 14;
+
+ CHECK(ffi_prep_closure_loc(pcl, &cif, test_fn, NULL, code) == FFI_OK);
+
+ res = ((int (*)(int, ...))(code))(si, s1, l1, s2);
+ // { dg-output "4 5 6 10 11 12 13 14 20 21" }
+ printf("res: %d\n", (int) res);
+ // { dg-output "\nres: 42" }
+
+ exit(0);
+}
--- /dev/null
+/* Area: closure_call
+ Purpose: Test anonymous unsigned char argument.
+ Limitations: none.
+ PR: none.
+ Originator: ARM Ltd. */
+
+/* { dg-do run } */
+#include "ffitest.h"
+
+typedef unsigned char T;
+
+static void cls_ret_T_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
+ void* userdata __UNUSED__)
+ {
+ *(T *)resp = *(T *)args[0];
+
+ printf("%d: %d %d\n", *(T *)resp, *(T *)args[0], *(T *)args[1]);
+ }
+
+typedef T (*cls_ret_T)(T, ...);
+
+int main (void)
+{
+ ffi_cif cif;
+ void *code;
+ ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
+ ffi_type * cl_arg_types[3];
+ T res;
+
+ cl_arg_types[0] = &ffi_type_uchar;
+ cl_arg_types[1] = &ffi_type_uchar;
+ cl_arg_types[2] = NULL;
+
+ /* Initialize the cif */
+ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 2,
+ &ffi_type_uchar, cl_arg_types) == FFI_OK);
+
+ CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_T_fn, NULL, code) == FFI_OK);
+ res = ((((cls_ret_T)code)(67, 4)));
+ /* { dg-output "67: 67 4" } */
+ printf("res: %d\n", res);
+ /* { dg-output "\nres: 67" } */
+ exit(0);
+}
--- /dev/null
+/* Area: closure_call
+ Purpose: Test anonymous unsigned int argument.
+ Limitations: none.
+ PR: none.
+ Originator: ARM Ltd. */
+
+/* { dg-do run } */
+
+#include "ffitest.h"
+
+typedef unsigned int T;
+
+static void cls_ret_T_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
+ void* userdata __UNUSED__)
+ {
+ *(T *)resp = *(T *)args[0];
+
+ printf("%d: %d %d\n", *(T *)resp, *(T *)args[0], *(T *)args[1]);
+ }
+
+typedef T (*cls_ret_T)(T, ...);
+
+int main (void)
+{
+ ffi_cif cif;
+ void *code;
+ ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
+ ffi_type * cl_arg_types[3];
+ T res;
+
+ cl_arg_types[0] = &ffi_type_uint;
+ cl_arg_types[1] = &ffi_type_uint;
+ cl_arg_types[2] = NULL;
+
+ /* Initialize the cif */
+ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 2,
+ &ffi_type_uint, cl_arg_types) == FFI_OK);
+
+ CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_T_fn, NULL, code) == FFI_OK);
+ res = ((((cls_ret_T)code)(67, 4)));
+ /* { dg-output "67: 67 4" } */
+ printf("res: %d\n", res);
+ /* { dg-output "\nres: 67" } */
+ exit(0);
+}
--- /dev/null
+/* Area: closure_call
+ Purpose: Test anonymous unsigned long argument.
+ Limitations: none.
+ PR: none.
+ Originator: ARM Ltd. */
+
+/* { dg-do run } */
+
+#include "ffitest.h"
+
+typedef unsigned long T;
+
+static void cls_ret_T_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
+ void* userdata __UNUSED__)
+ {
+ *(T *)resp = *(T *)args[0];
+
+ printf("%ld: %ld %ld\n", *(T *)resp, *(T *)args[0], *(T *)args[1]);
+ }
+
+typedef T (*cls_ret_T)(T, ...);
+
+int main (void)
+{
+ ffi_cif cif;
+ void *code;
+ ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
+ ffi_type * cl_arg_types[3];
+ T res;
+
+ cl_arg_types[0] = &ffi_type_ulong;
+ cl_arg_types[1] = &ffi_type_ulong;
+ cl_arg_types[2] = NULL;
+
+ /* Initialize the cif */
+ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 2,
+ &ffi_type_ulong, cl_arg_types) == FFI_OK);
+
+ CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_T_fn, NULL, code) == FFI_OK);
+ res = ((((cls_ret_T)code)(67, 4)));
+ /* { dg-output "67: 67 4" } */
+ printf("res: %ld\n", res);
+ /* { dg-output "\nres: 67" } */
+ exit(0);
+}
--- /dev/null
+/* Area: closure_call
+ Purpose: Test anonymous unsigned short argument.
+ Limitations: none.
+ PR: none.
+ Originator: ARM Ltd. */
+
+/* { dg-do run } */
+#include "ffitest.h"
+
+typedef unsigned short T;
+
+static void cls_ret_T_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
+ void* userdata __UNUSED__)
+ {
+ *(T *)resp = *(T *)args[0];
+
+ printf("%d: %d %d\n", *(T *)resp, *(T *)args[0], *(T *)args[1]);
+ }
+
+typedef T (*cls_ret_T)(T, ...);
+
+int main (void)
+{
+ ffi_cif cif;
+ void *code;
+ ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
+ ffi_type * cl_arg_types[3];
+ T res;
+
+ cl_arg_types[0] = &ffi_type_ushort;
+ cl_arg_types[1] = &ffi_type_ushort;
+ cl_arg_types[2] = NULL;
+
+ /* Initialize the cif */
+ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 2,
+ &ffi_type_ushort, cl_arg_types) == FFI_OK);
+
+ CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_T_fn, NULL, code) == FFI_OK);
+ res = ((((cls_ret_T)code)(67, 4)));
+ /* { dg-output "67: 67 4" } */
+ printf("res: %d\n", res);
+ /* { dg-output "\nres: 67" } */
+ exit(0);
+}
--- /dev/null
+/* Area: ffi_call, closure_call
+ Purpose: Check parameter passing with nested structs
+ of a single type. This tests the special cases
+ for homogenous floating-point aggregates in the
+ AArch64 PCS.
+ Limitations: none.
+ PR: none.
+ Originator: ARM Ltd. */
+
+/* { dg-do run } */
+#include "ffitest.h"
+
+typedef struct A {
+ float a_x;
+ float a_y;
+} A;
+
+typedef struct B {
+ float b_x;
+ float b_y;
+} B;
+
+typedef struct C {
+ A a;
+ B b;
+} C;
+
+static C C_fn (int x, int y, int z, C source, int i, int j, int k)
+{
+ C result;
+ result.a.a_x = source.a.a_x;
+ result.a.a_y = source.a.a_y;
+ result.b.b_x = source.b.b_x;
+ result.b.b_y = source.b.b_y;
+
+ printf ("%d, %d, %d, %d, %d, %d\n", x, y, z, i, j, k);
+
+ printf ("%.1f, %.1f, %.1f, %.1f, "
+ "%.1f, %.1f, %.1f, %.1f\n",
+ source.a.a_x, source.a.a_y,
+ source.b.b_x, source.b.b_y,
+ result.a.a_x, result.a.a_y,
+ result.b.b_x, result.b.b_y);
+
+ return result;
+}
+
+int main (void)
+{
+ ffi_cif cif;
+
+ ffi_type* struct_fields_source_a[3];
+ ffi_type* struct_fields_source_b[3];
+ ffi_type* struct_fields_source_c[3];
+ ffi_type* arg_types[8];
+
+ ffi_type struct_type_a, struct_type_b, struct_type_c;
+
+ struct A source_fld_a = {1.0, 2.0};
+ struct B source_fld_b = {4.0, 8.0};
+ int k = 1;
+
+ struct C result;
+ struct C source = {source_fld_a, source_fld_b};
+
+ struct_type_a.size = 0;
+ struct_type_a.alignment = 0;
+ struct_type_a.type = FFI_TYPE_STRUCT;
+ struct_type_a.elements = struct_fields_source_a;
+
+ struct_type_b.size = 0;
+ struct_type_b.alignment = 0;
+ struct_type_b.type = FFI_TYPE_STRUCT;
+ struct_type_b.elements = struct_fields_source_b;
+
+ struct_type_c.size = 0;
+ struct_type_c.alignment = 0;
+ struct_type_c.type = FFI_TYPE_STRUCT;
+ struct_type_c.elements = struct_fields_source_c;
+
+ struct_fields_source_a[0] = &ffi_type_float;
+ struct_fields_source_a[1] = &ffi_type_float;
+ struct_fields_source_a[2] = NULL;
+
+ struct_fields_source_b[0] = &ffi_type_float;
+ struct_fields_source_b[1] = &ffi_type_float;
+ struct_fields_source_b[2] = NULL;
+
+ struct_fields_source_c[0] = &struct_type_a;
+ struct_fields_source_c[1] = &struct_type_b;
+ struct_fields_source_c[2] = NULL;
+
+ arg_types[0] = &ffi_type_sint32;
+ arg_types[1] = &ffi_type_sint32;
+ arg_types[2] = &ffi_type_sint32;
+ arg_types[3] = &struct_type_c;
+ arg_types[4] = &ffi_type_sint32;
+ arg_types[5] = &ffi_type_sint32;
+ arg_types[6] = &ffi_type_sint32;
+ arg_types[7] = NULL;
+
+ void *args[7];
+ args[0] = &k;
+ args[1] = &k;
+ args[2] = &k;
+ args[3] = &source;
+ args[4] = &k;
+ args[5] = &k;
+ args[6] = &k;
+ CHECK (ffi_prep_cif (&cif, FFI_DEFAULT_ABI, 7, &struct_type_c,
+ arg_types) == FFI_OK);
+
+ ffi_call (&cif, FFI_FN (C_fn), &result, args);
+ /* { dg-output "1, 1, 1, 1, 1, 1\n" } */
+ /* { dg-output "1.0, 2.0, 4.0, 8.0, 1.0, 2.0, 4.0, 8.0" } */
+ CHECK (result.a.a_x == source.a.a_x);
+ CHECK (result.a.a_y == source.a.a_y);
+ CHECK (result.b.b_x == source.b.b_x);
+ CHECK (result.b.b_y == source.b.b_y);
+ exit (0);
+}
--- /dev/null
+/* { dg-do run } */
+#include "ffitest.h"
+
+typedef struct
+{
+ unsigned char uc;
+ double d;
+ unsigned int ui;
+} test_structure_1;
+
+static test_structure_1 struct1(test_structure_1 ts)
+{
+ ts.uc++;
+ ts.d--;
+ ts.ui++;
+
+ return ts;
+}
+
+int main (void)
+{
+ ffi_cif cif;
+ ffi_type *args[MAX_ARGS];
+ void *values[MAX_ARGS];
+ ffi_type ts1_type;
+ ffi_type *ts1_type_elements[4];
+
+ memset(&cif, 1, sizeof(cif));
+ ts1_type.size = 0;
+ ts1_type.alignment = 0;
+ ts1_type.type = FFI_TYPE_STRUCT;
+ ts1_type.elements = ts1_type_elements;
+ ts1_type_elements[0] = &ffi_type_uchar;
+ ts1_type_elements[1] = &ffi_type_double;
+ ts1_type_elements[2] = &ffi_type_uint;
+ ts1_type_elements[3] = NULL;
+
+ test_structure_1 ts1_arg;
+ /* This is a hack to get a properly aligned result buffer */
+ test_structure_1 *ts1_result =
+ (test_structure_1 *) malloc (sizeof(test_structure_1));
+
+ args[0] = &ts1_type;
+ values[0] = &ts1_arg;
+
+ /* Initialize the cif */
+ CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
+ &ts1_type, args) == FFI_OK);
+
+ ts1_arg.uc = '\x01';
+ ts1_arg.d = 3.14159;
+ ts1_arg.ui = 555;
+
+ ffi_call(&cif, FFI_FN(struct1), ts1_result, values);
+
+ CHECK(ts1_result->ui == 556);
+ CHECK(ts1_result->d == 3.14159 - 1);
+
+ free (ts1_result);
+ exit(0);
+}
--- /dev/null
+/* Area: ffi_call
+ Purpose: Test passing struct in variable argument lists.
+ Limitations: none.
+ PR: none.
+ Originator: ARM Ltd. */
+
+/* { dg-do run } */
+/* { dg-output "" { xfail avr32*-*-* x86_64-*-*-* } } */
+
+#include "ffitest.h"
+#include <stdarg.h>
+
+struct small_tag
+{
+ unsigned char a;
+ unsigned char b;
+};
+
+struct large_tag
+{
+ unsigned a;
+ unsigned b;
+ unsigned c;
+ unsigned d;
+ unsigned e;
+};
+
+static int
+test_fn (int n, ...)
+{
+ va_list ap;
+ struct small_tag s1;
+ struct small_tag s2;
+ struct large_tag l;
+ unsigned char uc;
+ signed char sc;
+ unsigned short us;
+ signed short ss;
+ unsigned int ui;
+ signed int si;
+ unsigned long ul;
+ signed long sl;
+ float f;
+ double d;
+
+ va_start (ap, n);
+ s1 = va_arg (ap, struct small_tag);
+ l = va_arg (ap, struct large_tag);
+ s2 = va_arg (ap, struct small_tag);
+
+ uc = va_arg (ap, unsigned);
+ sc = va_arg (ap, signed);
+
+ us = va_arg (ap, unsigned);
+ ss = va_arg (ap, signed);
+
+ ui = va_arg (ap, unsigned int);
+ si = va_arg (ap, signed int);
+
+ ul = va_arg (ap, unsigned long);
+ sl = va_arg (ap, signed long);
+
+ f = va_arg (ap, double); /* C standard promotes float->double
+ when anonymous */
+ d = va_arg (ap, double);
+
+ printf ("%u %u %u %u %u %u %u %u %u uc=%u sc=%d %u %d %u %d %lu %ld %f %f\n",
+ s1.a, s1.b, l.a, l.b, l.c, l.d, l.e,
+ s2.a, s2.b,
+ uc, sc,
+ us, ss,
+ ui, si,
+ ul, sl,
+ f, d);
+ va_end (ap);
+ return n + 1;
+}
+
+int
+main (void)
+{
+ ffi_cif cif;
+ void* args[15];
+ ffi_type* arg_types[15];
+
+ ffi_type s_type;
+ ffi_type *s_type_elements[3];
+
+ ffi_type l_type;
+ ffi_type *l_type_elements[6];
+
+ struct small_tag s1;
+ struct small_tag s2;
+ struct large_tag l1;
+
+ int n;
+ int res;
+
+ unsigned char uc;
+ signed char sc;
+ unsigned short us;
+ signed short ss;
+ unsigned int ui;
+ signed int si;
+ unsigned long ul;
+ signed long sl;
+ double d1;
+ double f1;
+
+ s_type.size = 0;
+ s_type.alignment = 0;
+ s_type.type = FFI_TYPE_STRUCT;
+ s_type.elements = s_type_elements;
+
+ s_type_elements[0] = &ffi_type_uchar;
+ s_type_elements[1] = &ffi_type_uchar;
+ s_type_elements[2] = NULL;
+
+ l_type.size = 0;
+ l_type.alignment = 0;
+ l_type.type = FFI_TYPE_STRUCT;
+ l_type.elements = l_type_elements;
+
+ l_type_elements[0] = &ffi_type_uint;
+ l_type_elements[1] = &ffi_type_uint;
+ l_type_elements[2] = &ffi_type_uint;
+ l_type_elements[3] = &ffi_type_uint;
+ l_type_elements[4] = &ffi_type_uint;
+ l_type_elements[5] = NULL;
+
+ arg_types[0] = &ffi_type_sint;
+ arg_types[1] = &s_type;
+ arg_types[2] = &l_type;
+ arg_types[3] = &s_type;
+ arg_types[4] = &ffi_type_uint;
+ arg_types[5] = &ffi_type_sint;
+ arg_types[6] = &ffi_type_uint;
+ arg_types[7] = &ffi_type_sint;
+ arg_types[8] = &ffi_type_uint;
+ arg_types[9] = &ffi_type_sint;
+ arg_types[10] = &ffi_type_ulong;
+ arg_types[11] = &ffi_type_slong;
+ arg_types[12] = &ffi_type_double;
+ arg_types[13] = &ffi_type_double;
+ arg_types[14] = NULL;
+
+ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 14, &ffi_type_sint, arg_types) == FFI_OK);
+
+ s1.a = 5;
+ s1.b = 6;
+
+ l1.a = 10;
+ l1.b = 11;
+ l1.c = 12;
+ l1.d = 13;
+ l1.e = 14;
+
+ s2.a = 7;
+ s2.b = 8;
+
+ n = 41;
+
+ uc = 9;
+ sc = 10;
+ us = 11;
+ ss = 12;
+ ui = 13;
+ si = 14;
+ ul = 15;
+ sl = 16;
+ f1 = 2.12;
+ d1 = 3.13;
+
+ args[0] = &n;
+ args[1] = &s1;
+ args[2] = &l1;
+ args[3] = &s2;
+ args[4] = &uc;
+ args[5] = ≻
+ args[6] = &us;
+ args[7] = &ss;
+ args[8] = &ui;
+ args[9] = &si;
+ args[10] = &ul;
+ args[11] = &sl;
+ args[12] = &f1;
+ args[13] = &d1;
+ args[14] = NULL;
+
+ ffi_call(&cif, FFI_FN(test_fn), &res, args);
+ /* { dg-output "5 6 10 11 12 13 14 7 8 uc=9 sc=10 11 12 13 14 15 16 2.120000 3.130000" } */
+ printf("res: %d\n", (int) res);
+ /* { dg-output "\nres: 42" } */
+
+ return 0;
+}
--- /dev/null
+/* Area: ffi_call
+ Purpose: Test passing struct in variable argument lists.
+ Limitations: none.
+ PR: none.
+ Originator: ARM Ltd. */
+
+/* { dg-do run } */
+/* { dg-output "" { xfail avr32*-*-* } } */
+
+#include "ffitest.h"
+#include <stdarg.h>
+
+struct small_tag
+{
+ unsigned char a;
+ unsigned char b;
+};
+
+struct large_tag
+{
+ unsigned a;
+ unsigned b;
+ unsigned c;
+ unsigned d;
+ unsigned e;
+};
+
+static int
+test_fn (int n, ...)
+{
+ va_list ap;
+ struct small_tag s1;
+ struct small_tag s2;
+ struct large_tag l;
+
+ va_start (ap, n);
+ s1 = va_arg (ap, struct small_tag);
+ l = va_arg (ap, struct large_tag);
+ s2 = va_arg (ap, struct small_tag);
+ printf ("%u %u %u %u %u %u %u %u %u\n", s1.a, s1.b, l.a, l.b, l.c, l.d, l.e,
+ s2.a, s2.b);
+ va_end (ap);
+ return n + 1;
+}
+
+int
+main (void)
+{
+ ffi_cif cif;
+ void* args[5];
+ ffi_type* arg_types[5];
+
+ ffi_type s_type;
+ ffi_type *s_type_elements[3];
+
+ ffi_type l_type;
+ ffi_type *l_type_elements[6];
+
+ struct small_tag s1;
+ struct small_tag s2;
+ struct large_tag l1;
+
+ int n;
+ int res;
+
+ s_type.size = 0;
+ s_type.alignment = 0;
+ s_type.type = FFI_TYPE_STRUCT;
+ s_type.elements = s_type_elements;
+
+ s_type_elements[0] = &ffi_type_uchar;
+ s_type_elements[1] = &ffi_type_uchar;
+ s_type_elements[2] = NULL;
+
+ l_type.size = 0;
+ l_type.alignment = 0;
+ l_type.type = FFI_TYPE_STRUCT;
+ l_type.elements = l_type_elements;
+
+ l_type_elements[0] = &ffi_type_uint;
+ l_type_elements[1] = &ffi_type_uint;
+ l_type_elements[2] = &ffi_type_uint;
+ l_type_elements[3] = &ffi_type_uint;
+ l_type_elements[4] = &ffi_type_uint;
+ l_type_elements[5] = NULL;
+
+ arg_types[0] = &ffi_type_sint;
+ arg_types[1] = &s_type;
+ arg_types[2] = &l_type;
+ arg_types[3] = &s_type;
+ arg_types[4] = NULL;
+
+ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 4, &ffi_type_sint, arg_types) == FFI_OK);
+
+ s1.a = 5;
+ s1.b = 6;
+
+ l1.a = 10;
+ l1.b = 11;
+ l1.c = 12;
+ l1.d = 13;
+ l1.e = 14;
+
+ s2.a = 7;
+ s2.b = 8;
+
+ n = 41;
+
+ args[0] = &n;
+ args[1] = &s1;
+ args[2] = &l1;
+ args[3] = &s2;
+ args[4] = NULL;
+
+ ffi_call(&cif, FFI_FN(test_fn), &res, args);
+ /* { dg-output "5 6 10 11 12 13 14 7 8" } */
+ printf("res: %d\n", (int) res);
+ /* { dg-output "\nres: 42" } */
+
+ return 0;
+}
--- /dev/null
+/* Area: ffi_call
+ Purpose: Test passing struct in variable argument lists.
+ Limitations: none.
+ PR: none.
+ Originator: ARM Ltd. */
+
+/* { dg-do run } */
+/* { dg-output "" { xfail avr32*-*-* } } */
+
+#include "ffitest.h"
+#include <stdarg.h>
+
+struct small_tag
+{
+ unsigned char a;
+ unsigned char b;
+};
+
+struct large_tag
+{
+ unsigned a;
+ unsigned b;
+ unsigned c;
+ unsigned d;
+ unsigned e;
+};
+
+static struct small_tag
+test_fn (int n, ...)
+{
+ va_list ap;
+ struct small_tag s1;
+ struct small_tag s2;
+ struct large_tag l;
+
+ va_start (ap, n);
+ s1 = va_arg (ap, struct small_tag);
+ l = va_arg (ap, struct large_tag);
+ s2 = va_arg (ap, struct small_tag);
+ printf ("%u %u %u %u %u %u %u %u %u\n", s1.a, s1.b, l.a, l.b, l.c, l.d, l.e,
+ s2.a, s2.b);
+ va_end (ap);
+ s1.a += s2.a;
+ s1.b += s2.b;
+ return s1;
+}
+
+int
+main (void)
+{
+ ffi_cif cif;
+ void* args[5];
+ ffi_type* arg_types[5];
+
+ ffi_type s_type;
+ ffi_type *s_type_elements[3];
+
+ ffi_type l_type;
+ ffi_type *l_type_elements[6];
+
+ struct small_tag s1;
+ struct small_tag s2;
+ struct large_tag l1;
+
+ int n;
+ struct small_tag res;
+
+ s_type.size = 0;
+ s_type.alignment = 0;
+ s_type.type = FFI_TYPE_STRUCT;
+ s_type.elements = s_type_elements;
+
+ s_type_elements[0] = &ffi_type_uchar;
+ s_type_elements[1] = &ffi_type_uchar;
+ s_type_elements[2] = NULL;
+
+ l_type.size = 0;
+ l_type.alignment = 0;
+ l_type.type = FFI_TYPE_STRUCT;
+ l_type.elements = l_type_elements;
+
+ l_type_elements[0] = &ffi_type_uint;
+ l_type_elements[1] = &ffi_type_uint;
+ l_type_elements[2] = &ffi_type_uint;
+ l_type_elements[3] = &ffi_type_uint;
+ l_type_elements[4] = &ffi_type_uint;
+ l_type_elements[5] = NULL;
+
+ arg_types[0] = &ffi_type_sint;
+ arg_types[1] = &s_type;
+ arg_types[2] = &l_type;
+ arg_types[3] = &s_type;
+ arg_types[4] = NULL;
+
+ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 4, &s_type, arg_types) == FFI_OK);
+
+ s1.a = 5;
+ s1.b = 6;
+
+ l1.a = 10;
+ l1.b = 11;
+ l1.c = 12;
+ l1.d = 13;
+ l1.e = 14;
+
+ s2.a = 7;
+ s2.b = 8;
+
+ n = 41;
+
+ args[0] = &n;
+ args[1] = &s1;
+ args[2] = &l1;
+ args[3] = &s2;
+ args[4] = NULL;
+
+ ffi_call(&cif, FFI_FN(test_fn), &res, args);
+ /* { dg-output "5 6 10 11 12 13 14 7 8" } */
+ printf("res: %d %d\n", res.a, res.b);
+ /* { dg-output "\nres: 12 14" } */
+
+ return 0;
+}
--- /dev/null
+/* Area: ffi_call
+ Purpose: Test passing struct in variable argument lists.
+ Limitations: none.
+ PR: none.
+ Originator: ARM Ltd. */
+
+/* { dg-do run } */
+/* { dg-output "" { xfail avr32*-*-* } } */
+
+#include "ffitest.h"
+#include <stdarg.h>
+
+struct small_tag
+{
+ unsigned char a;
+ unsigned char b;
+};
+
+struct large_tag
+{
+ unsigned a;
+ unsigned b;
+ unsigned c;
+ unsigned d;
+ unsigned e;
+};
+
+static struct large_tag
+test_fn (int n, ...)
+{
+ va_list ap;
+ struct small_tag s1;
+ struct small_tag s2;
+ struct large_tag l;
+
+ va_start (ap, n);
+ s1 = va_arg (ap, struct small_tag);
+ l = va_arg (ap, struct large_tag);
+ s2 = va_arg (ap, struct small_tag);
+ printf ("%u %u %u %u %u %u %u %u %u\n", s1.a, s1.b, l.a, l.b, l.c, l.d, l.e,
+ s2.a, s2.b);
+ va_end (ap);
+ l.a += s1.a;
+ l.b += s1.b;
+ l.c += s2.a;
+ l.d += s2.b;
+ return l;
+}
+
+int
+main (void)
+{
+ ffi_cif cif;
+ void* args[5];
+ ffi_type* arg_types[5];
+
+ ffi_type s_type;
+ ffi_type *s_type_elements[3];
+
+ ffi_type l_type;
+ ffi_type *l_type_elements[6];
+
+ struct small_tag s1;
+ struct small_tag s2;
+ struct large_tag l1;
+
+ int n;
+ struct large_tag res;
+
+ s_type.size = 0;
+ s_type.alignment = 0;
+ s_type.type = FFI_TYPE_STRUCT;
+ s_type.elements = s_type_elements;
+
+ s_type_elements[0] = &ffi_type_uchar;
+ s_type_elements[1] = &ffi_type_uchar;
+ s_type_elements[2] = NULL;
+
+ l_type.size = 0;
+ l_type.alignment = 0;
+ l_type.type = FFI_TYPE_STRUCT;
+ l_type.elements = l_type_elements;
+
+ l_type_elements[0] = &ffi_type_uint;
+ l_type_elements[1] = &ffi_type_uint;
+ l_type_elements[2] = &ffi_type_uint;
+ l_type_elements[3] = &ffi_type_uint;
+ l_type_elements[4] = &ffi_type_uint;
+ l_type_elements[5] = NULL;
+
+ arg_types[0] = &ffi_type_sint;
+ arg_types[1] = &s_type;
+ arg_types[2] = &l_type;
+ arg_types[3] = &s_type;
+ arg_types[4] = NULL;
+
+ CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 4, &l_type, arg_types) == FFI_OK);
+
+ s1.a = 5;
+ s1.b = 6;
+
+ l1.a = 10;
+ l1.b = 11;
+ l1.c = 12;
+ l1.d = 13;
+ l1.e = 14;
+
+ s2.a = 7;
+ s2.b = 8;
+
+ n = 41;
+
+ args[0] = &n;
+ args[1] = &s1;
+ args[2] = &l1;
+ args[3] = &s2;
+ args[4] = NULL;
+
+ ffi_call(&cif, FFI_FN(test_fn), &res, args);
+ /* { dg-output "5 6 10 11 12 13 14 7 8" } */
+ printf("res: %d %d %d %d %d\n", res.a, res.b, res.c, res.d, res.e);
+ /* { dg-output "\nres: 15 17 19 21 14" } */
+
+ return 0;
+}
projects / platform / upstream / libffi.git / commitdiff