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AArch64 port

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Anthony Green
2012-10-30 07:07:19 -04:00
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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.

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# 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:

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mingw-check-fix mingw-check-fix
whitespace-fix whitespace-fix
tile tile
aarch64

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ChangeLog
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2012-10-30 James Greenhalgh <james.greenhalgh at arm.com>
Marcus Shawcroft <marcus.shawcroft at arm.com>
* README: Add details of aarch64 port.
* src/aarch64/ffi.c: New.
* src/aarch64/ffitarget.h: Likewise.
* src/aarch64/sysv.S: Likewise.
2012-10-30 James Greenhalgh <james.greenhalgh at arm.com>
Marcus Shawcroft <marcus.shawcroft at arm.com>
* testsuite/lib/libffi.exp: Add support for aarch64.
* testsuite/libffi.call/cls_struct_va1.c: New.
* testsuite/libffi.call/cls_uchar_va.c: Likewise.
* testsuite/libffi.call/cls_uint_va.c: Likewise.
* testsuite/libffi.call/cls_ulong_va.c: Liekwise.
* testsuite/libffi.call/cls_ushort_va.c: Likewise.
* testsuite/libffi.call/nested_struct11.c: Likewise.
* testsuite/libffi.call/uninitialized.c: Likewise.
* testsuite/libffi.call/va_1.c: Likewise.
* testsuite/libffi.call/va_struct1.c: Likewise.
* testsuite/libffi.call/va_struct2.c: Likewise.
* testsuite/libffi.call/va_struct3.c: Likewise.
2012-10-12 Walter Lee <walt@tilera.com> 2012-10-12 Walter Lee <walt@tilera.com>
* Makefile.am: Add TILE-Gx/TILEPro support. * Makefile.am: Add TILE-Gx/TILEPro support.

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|-----------------+------------------| |-----------------+------------------|
| Architecture | Operating System | | Architecture | Operating System |
|-----------------+------------------| |-----------------+------------------|
| AArch64 | Linux |
| Alpha | Linux | | Alpha | Linux |
| Alpha | Tru64 | | Alpha | Tru64 |
| ARM | Linux | | ARM | Linux |
@@ -152,6 +153,7 @@ See the ChangeLog files for details.
3.0.12 XXX-XX-XX 3.0.12 XXX-XX-XX
Add Blackfin support. Add Blackfin support.
Add TILE-Gx/TILEPro support. Add TILE-Gx/TILEPro support.
Add AArch64 support.
3.0.11 Apr-11-12 3.0.11 Apr-11-12
Lots of build fixes. Lots of build fixes.
@@ -323,6 +325,7 @@ Thorup.
Major processor architecture ports were contributed by the following Major processor architecture ports were contributed by the following
developers: developers:
aarch64 Marcus Shawcroft, James Greenhalgh
alpha Richard Henderson alpha Richard Henderson
arm Raffaele Sena arm Raffaele Sena
blackfin Alexandre Keunecke I. de Mendonca blackfin Alexandre Keunecke I. de Mendonca

2626
patches/aarch64 Normal file
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1
patches/series
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@@ -23,3 +23,4 @@ ios-fix
mingw-check-fix mingw-check-fix
whitespace-fix whitespace-fix
tile tile
aarch64

1076
src/aarch64/ffi.c Normal file
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59
src/aarch64/ffitarget.h Normal file
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@@ -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

307
src/aarch64/sysv.S Normal file
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@@ -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

4
testsuite/lib/libffi.exp
View File

@@ -203,6 +203,10 @@ proc libffi_target_compile { source dest type options } {
lappend options "libs= -lffi" lappend options "libs= -lffi"
if { [string match "aarch64*-*-linux*" $target_triplet] } {
lappend options "libs= -lpthread"
}
verbose "options: $options" verbose "options: $options"
return [target_compile $source $dest $type $options] return [target_compile $source $dest $type $options]
} }

114
testsuite/libffi.call/cls_struct_va1.c Normal file
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@@ -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);
}

44
testsuite/libffi.call/cls_uchar_va.c Normal file
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@@ -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);
}

45
testsuite/libffi.call/cls_uint_va.c Normal file
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@@ -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);
}

45
testsuite/libffi.call/cls_ulong_va.c Normal file
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@@ -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);
}

44
testsuite/libffi.call/cls_ushort_va.c Normal file
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@@ -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);
}

121
testsuite/libffi.call/nested_struct11.c Normal file
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@@ -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);
}

61
testsuite/libffi.call/uninitialized.c Normal file
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/* { 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);
}

196
testsuite/libffi.call/va_1.c Normal file
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/* 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] = &sc;
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;
}

121
testsuite/libffi.call/va_struct1.c Normal file
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/* 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;
}

123
testsuite/libffi.call/va_struct2.c Normal file
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/* 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;
}

125
testsuite/libffi.call/va_struct3.c Normal file
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/* 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;
}