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libffi/libffi-Add-sw64-architecture.patch

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add sw_64 support
2025-02-28 18:16:16 +08:00
Description: Add support for sunway
Author: Miao Changwei <miaochangwei@uniontech.com>
Last-Update: 2022-04-07
---
Makefile.am | 2 +
config.guess | 4 +
config.sub | 2 +-
configure.host | 7 +
src/sw64/ffi.c | 517 ++++++++++++++++++
src/sw64/ffitarget.h | 58 ++
src/sw64/internal.h | 23 +
src/sw64/sysv.S | 283 ++++++++++
.../libffi.complex/cls_complex_va_float.c | 4 +-
9 files changed, 897 insertions(+), 3 deletions(-)
create mode 100644 src/sw64/ffi.c
create mode 100644 src/sw64/ffitarget.h
create mode 100644 src/sw64/internal.h
create mode 100644 src/sw64/sysv.S
diff --git a/Makefile.am b/Makefile.am
index a4a4887..747d129 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -62,6 +62,7 @@ noinst_HEADERS = src/aarch64/ffitarget.h src/aarch64/internal.h \
src/s390/ffitarget.h src/s390/internal.h src/sh/ffitarget.h \
src/sh64/ffitarget.h src/sparc/ffitarget.h \
src/sparc/internal.h src/tile/ffitarget.h src/vax/ffitarget.h \
+ src/sw64/ffitarget.h src/sw64/internal.h \
src/x86/ffitarget.h src/x86/internal.h src/x86/internal64.h \
src/x86/asmnames.h src/xtensa/ffitarget.h src/dlmalloc.c \
src/kvx/ffitarget.h src/kvx/asm.h \
@@ -91,6 +92,7 @@ EXTRA_libffi_la_SOURCES = src/aarch64/ffi.c src/aarch64/sysv.S \
src/s390/sysv.S src/sh/ffi.c src/sh/sysv.S src/sh64/ffi.c \
src/sh64/sysv.S src/sparc/ffi.c src/sparc/ffi64.c \
src/sparc/v8.S src/sparc/v9.S src/tile/ffi.c src/tile/tile.S \
+ src/sw64/ffi.c src/sw64/sysv.S \
src/vax/ffi.c src/vax/elfbsd.S src/x86/ffi.c src/x86/sysv.S \
src/x86/ffiw64.c src/x86/win64.S src/x86/ffi64.c \
src/x86/unix64.S src/x86/sysv_intel.S src/x86/win64_intel.S \
diff --git a/config.guess b/config.guess
index 7f76b62..fe6f8bc 100644
--- a/config.guess
+++ b/config.guess
@@ -990,6 +990,10 @@ EOF
if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
;;
+ sw_64:Linux:*:* | sw64:Linux:*:*)
+ UNAME_MACHINE=sw_64
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
arc:Linux:*:* | arceb:Linux:*:* | arc32:Linux:*:* | arc64:Linux:*:*)
GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
;;
diff --git a/config.sub b/config.sub
index dba16e8..c0d9565 100644
--- a/config.sub
+++ b/config.sub
@@ -1266,7 +1266,7 @@ case $cpu-$vendor in
| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
| sparclite \
| sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
- | spu \
+ | spu | sw_64 \
| tahoe \
| thumbv7* \
| tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
diff --git a/configure.host b/configure.host
index f23716f..0304d5a 100644
--- a/configure.host
+++ b/configure.host
@@ -254,6 +254,13 @@ case "${host}" in
SOURCES="ffi.c ffi64.c v8.S v9.S"
;;
+ sw_64*-*-* | sw64*-*-*)
+ TARGET=SW64; TARGETDIR=sw64;
+ # Support 128-bit long double, changeable via command-line switch.
+ HAVE_LONG_DOUBLE='defined(__LONG_DOUBLE_128__)'
+ SOURCES="ffi.c sysv.S"
+ ;;
+
tile*-*)
TARGET=TILE; TARGETDIR=tile
SOURCES="ffi.c tile.S"
diff --git a/src/sw64/ffi.c b/src/sw64/ffi.c
new file mode 100644
index 0000000..5c26580
--- /dev/null
+++ b/src/sw64/ffi.c
@@ -0,0 +1,517 @@
+/* -----------------------------------------------------------------------
+ ffi.c - Copyright (c) 2012 Anthony Green
+ Copyright (c) 1998, 2001, 2007, 2008 Red Hat, Inc.
+ Copyright (c) 2021, UnionTech Software Technology Co., Ltd.
+
+ Sunway Foreign Function Interface
+
+ 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 <ffi.h>
+#include <ffi_common.h>
+#include <stdlib.h>
+#include "internal.h"
+
+/* Force FFI_TYPE_LONGDOUBLE to be different than FFI_TYPE_DOUBLE;
+ all further uses in this file will refer to the 128-bit type. */
+#if defined(__LONG_DOUBLE_128__)
+# if FFI_TYPE_LONGDOUBLE != 4
+# error FFI_TYPE_LONGDOUBLE out of date
+# endif
+#else
+# undef FFI_TYPE_LONGDOUBLE
+# define FFI_TYPE_LONGDOUBLE 4
+#endif
+
+extern void ffi_call_SYSV(void *stack, void *frame, unsigned flags,
+ void *raddr, void (*fn)(void), void *closure)
+ FFI_HIDDEN;
+extern void ffi_closure_SYSV(void) FFI_HIDDEN;
+extern void ffi_go_closure_SYSV(void) FFI_HIDDEN;
+
+/* Promote a float value to its in-register double representation.
+ Unlike actually casting to double, this does not trap on NaN. */
+static inline UINT64 lds(void *ptr)
+{
+ UINT64 ret;
+ asm("flds %0,%1" : "=f"(ret) : "m"(*(UINT32 *)ptr));
+ return ret;
+}
+
+/* And the reverse. */
+static inline void sts(void *ptr, UINT64 val)
+{
+ asm("fsts %1,%0" : "=m"(*(UINT32 *)ptr) : "f"(val));
+}
+
+ffi_status FFI_HIDDEN
+ffi_prep_cif_machdep(ffi_cif *cif)
+{
+ size_t bytes = 0;
+ int flags, i, avn;
+ ffi_type *rtype, *itype;
+
+ if (cif->abi != FFI_SYSV)
+ return FFI_BAD_ABI;
+
+ /* Compute the size of the argument area. */
+ for (i = 0, avn = cif->nargs; i < avn; i++)
+ {
+ itype = cif->arg_types[i];
+ switch (itype->type)
+ {
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_DOUBLE:
+ case FFI_TYPE_LONGDOUBLE:
+ /* All take one 8 byte slot. */
+ bytes += 8;
+ break;
+
+ case FFI_TYPE_VOID:
+ case FFI_TYPE_STRUCT:
+ /* Passed by value in N slots. */
+ bytes += FFI_ALIGN(itype->size, FFI_SIZEOF_ARG);
+ break;
+
+ case FFI_TYPE_COMPLEX:
+ /* _Complex long double passed by reference; others in 2 slots. */
+ if (itype->elements[0]->type == FFI_TYPE_LONGDOUBLE)
+ bytes += 8;
+ else
+ bytes += 16;
+ break;
+
+ default:
+ abort();
+ }
+ }
+
+ /* Set the return type flag */
+ rtype = cif->rtype;
+ switch (rtype->type)
+ {
+ case FFI_TYPE_VOID:
+ flags = SW64_FLAGS(SW64_ST_VOID, SW64_LD_VOID);
+ break;
+ case FFI_TYPE_INT:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT32:
+ flags = SW64_FLAGS(SW64_ST_INT, SW64_LD_INT32);
+ break;
+ case FFI_TYPE_FLOAT:
+ flags = SW64_FLAGS(SW64_ST_FLOAT, SW64_LD_FLOAT);
+ break;
+ case FFI_TYPE_DOUBLE:
+ flags = SW64_FLAGS(SW64_ST_DOUBLE, SW64_LD_DOUBLE);
+ break;
+ case FFI_TYPE_UINT8:
+ flags = SW64_FLAGS(SW64_ST_INT, SW64_LD_UINT8);
+ break;
+ case FFI_TYPE_SINT8:
+ flags = SW64_FLAGS(SW64_ST_INT, SW64_LD_SINT8);
+ break;
+ case FFI_TYPE_UINT16:
+ flags = SW64_FLAGS(SW64_ST_INT, SW64_LD_UINT16);
+ break;
+ case FFI_TYPE_SINT16:
+ flags = SW64_FLAGS(SW64_ST_INT, SW64_LD_SINT16);
+ break;
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_POINTER:
+ flags = SW64_FLAGS(SW64_ST_INT, SW64_LD_INT64);
+ break;
+ case FFI_TYPE_LONGDOUBLE:
+ case FFI_TYPE_STRUCT:
+ /* Passed in memory, with a hidden pointer. */
+ flags = SW64_RET_IN_MEM;
+ break;
+ case FFI_TYPE_COMPLEX:
+ itype = rtype->elements[0];
+ switch (itype->type)
+ {
+ case FFI_TYPE_FLOAT:
+ flags = SW64_FLAGS(SW64_ST_CPLXF, SW64_LD_CPLXF);
+ break;
+ case FFI_TYPE_DOUBLE:
+ flags = SW64_FLAGS(SW64_ST_CPLXD, SW64_LD_CPLXD);
+ break;
+ default:
+ if (rtype->size <= 8)
+ flags = SW64_FLAGS(SW64_ST_INT, SW64_LD_INT64);
+ else
+ flags = SW64_RET_IN_MEM;
+ break;
+ }
+ break;
+ default:
+ abort();
+ }
+ cif->flags = flags;
+
+ /* Include the hidden structure pointer in args requirement. */
+ if (flags == SW64_RET_IN_MEM)
+ bytes += 8;
+ /* Minimum size is 6 slots, so that ffi_call_SYSV can pop them. */
+ if (bytes < 6*8)
+ bytes = 6*8;
+ cif->bytes = bytes;
+
+ return FFI_OK;
+}
+
+static unsigned long
+extend_basic_type(void *valp, int type, int argn)
+{
+ switch (type)
+ {
+ case FFI_TYPE_SINT8:
+ return *(SINT8 *)valp;
+ case FFI_TYPE_UINT8:
+ return *(UINT8 *)valp;
+ case FFI_TYPE_SINT16:
+ return *(SINT16 *)valp;
+ case FFI_TYPE_UINT16:
+ return *(UINT16 *)valp;
+
+ case FFI_TYPE_FLOAT:
+ if (argn < 6)
+ return lds(valp);
+ /* FALLTHRU */
+
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_UINT32:
+ /* Note that unsigned 32-bit quantities are sign extended. */
+ return *(SINT32 *)valp;
+
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_DOUBLE:
+ return *(UINT64 *)valp;
+
+ default:
+ abort();
+ }
+}
+
+static void
+ffi_call_int (ffi_cif *cif, void (*fn)(void), void *rvalue,
+ void **avalue, void *closure)
+{
+ unsigned long *argp;
+ long i, avn, argn, flags = cif->flags;
+ ffi_type **arg_types;
+ void *frame;
+
+ /* If the return value is a struct and we don't have a return
+ value address then we need to make one. */
+ if (rvalue == NULL && flags == SW64_RET_IN_MEM)
+ rvalue = alloca(cif->rtype->size);
+
+ /* Allocate the space for the arguments, plus 4 words of temp
+ space for ffi_call_SYSV. */
+ argp = frame = alloca(cif->bytes + 4*FFI_SIZEOF_ARG);
+ frame += cif->bytes;
+
+ argn = 0;
+ if (flags == SW64_RET_IN_MEM)
+ argp[argn++] = (unsigned long)rvalue;
+
+ avn = cif->nargs;
+ arg_types = cif->arg_types;
+
+ for (i = 0, avn = cif->nargs; i < avn; i++)
+ {
+ ffi_type *ty = arg_types[i];
+ void *valp = avalue[i];
+ int type = ty->type;
+ size_t size;
+
+ switch (type)
+ {
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_POINTER:
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_DOUBLE:
+ argp[argn] = extend_basic_type(valp, type, argn);
+ argn++;
+ break;
+
+ case FFI_TYPE_LONGDOUBLE:
+ by_reference:
+ /* Note that 128-bit long double is passed by reference. */
+ argp[argn++] = (unsigned long)valp;
+ break;
+
+ case FFI_TYPE_VOID:
+ case FFI_TYPE_STRUCT:
+ size = ty->size;
+ memcpy(argp + argn, valp, size);
+ argn += FFI_ALIGN(size, FFI_SIZEOF_ARG) / FFI_SIZEOF_ARG;
+ break;
+
+ case FFI_TYPE_COMPLEX:
+ type = ty->elements[0]->type;
+ if (type == FFI_TYPE_LONGDOUBLE)
+ goto by_reference;
+
+ /* Most complex types passed as two separate arguments. */
+ size = ty->elements[0]->size;
+ argp[argn] = extend_basic_type(valp, type, argn);
+ argp[argn + 1] = extend_basic_type(valp + size, type, argn + 1);
+ argn += 2;
+ break;
+
+ default:
+ abort();
+ }
+ }
+
+ flags = (flags >> SW64_ST_SHIFT) & 0xff;
+ ffi_call_SYSV(argp, frame, flags, rvalue, fn, closure);
+}
+
+void
+ffi_call (ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
+{
+ ffi_call_int(cif, fn, rvalue, avalue, NULL);
+}
+
+void
+ffi_call_go (ffi_cif *cif, void (*fn)(void), void *rvalue,
+ void **avalue, void *closure)
+{
+ ffi_call_int(cif, fn, rvalue, avalue, closure);
+}
+
+ffi_status
+ffi_prep_closure_loc (ffi_closure* closure,
+ ffi_cif* cif,
+ void (*fun)(ffi_cif*, void*, void**, void*),
+ void *user_data,
+ void *codeloc)
+{
+ unsigned int *tramp;
+
+ if (cif->abi != FFI_SYSV)
+ return FFI_BAD_ABI;
+
+ tramp = (unsigned int *) &closure->tramp[0];
+ tramp[0] = 0x43fb0741; /* mov $27,$1 */
+ tramp[1] = 0x8f7b0010; /* ldl $27,16($27) */
+ tramp[2] = 0x0ffb0000; /* jmp $31,($27),0 */
+ tramp[3] = 0x43ff075f; /* nop */
+ *(void **) &tramp[4] = ffi_closure_SYSV;
+
+ closure->cif = cif;
+ closure->fun = fun;
+ closure->user_data = user_data;
+
+ /* Flush the Icache. 0x86 is HMC_imb <asm/hmcall.h>. */
+ asm volatile ("sys_call 0x86" : : : "memory");
+
+ return FFI_OK;
+}
+
+ffi_status
+ffi_prep_go_closure (ffi_go_closure* closure,
+ ffi_cif* cif,
+ void (*fun)(ffi_cif*, void*, void**, void*))
+{
+ if (cif->abi != FFI_SYSV)
+ return FFI_BAD_ABI;
+
+ closure->tramp = (void *)ffi_go_closure_SYSV;
+ closure->cif = cif;
+ closure->fun = fun;
+
+ return FFI_OK;
+}
+
+long FFI_HIDDEN
+ffi_closure_SYSV_inner (ffi_cif *cif,
+ void (*fun)(ffi_cif*, void*, void**, void*),
+ void *user_data,
+ void *rvalue, unsigned long *argp)
+{
+ void **avalue;
+ ffi_type **arg_types;
+ long i, avn, argn, flags;
+
+ avalue = alloca(cif->nargs * sizeof(void *));
+ flags = cif->flags;
+ argn = 0;
+
+ /* Copy the caller's structure return address to that the closure
+ returns the data directly to the caller. */
+ if (flags == SW64_RET_IN_MEM)
+ {
+ rvalue = (void *) argp[0];
+ argn = 1;
+ }
+
+ arg_types = cif->arg_types;
+
+ /* Grab the addresses of the arguments from the stack frame. */
+ for (i = 0, avn = cif->nargs; i < avn; i++)
+ {
+ ffi_type *ty = arg_types[i];
+ int type = ty->type;
+ void *valp = &argp[argn];
+ size_t size;
+
+ switch (type)
+ {
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_POINTER:
+ argn += 1;
+ break;
+
+ case FFI_TYPE_VOID:
+ case FFI_TYPE_STRUCT:
+ size = ty->size;
+ argn += FFI_ALIGN(size, FFI_SIZEOF_ARG) / FFI_SIZEOF_ARG;
+ break;
+
+ case FFI_TYPE_FLOAT:
+ /* Floats coming from registers need conversion from double
+ back to float format. */
+ if (argn < 6)
+ {
+ valp = &argp[argn - 6];
+ sts(valp, argp[argn - 6]);
+ }
+ argn += 1;
+ break;
+
+ case FFI_TYPE_DOUBLE:
+ if (argn < 6)
+ valp = &argp[argn - 6];
+ argn += 1;
+ break;
+
+ case FFI_TYPE_LONGDOUBLE:
+ by_reference:
+ /* 128-bit long double is passed by reference. */
+ valp = (void *)argp[argn];
+ argn += 1;
+ break;
+
+ case FFI_TYPE_COMPLEX:
+ type = ty->elements[0]->type;
+ switch (type)
+ {
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_UINT64:
+ /* Passed as separate arguments, but they wind up sequential. */
+ break;
+
+ case FFI_TYPE_INT:
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT8:
+ case FFI_TYPE_SINT16:
+ case FFI_TYPE_UINT16:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_UINT32:
+ /* Passed as separate arguments. Disjoint, but there's room
+ enough in one slot to hold the pair. */
+ size = ty->elements[0]->size;
+ memcpy(valp + size, valp + 8, size);
+ break;
+
+ case FFI_TYPE_FLOAT:
+ /* Passed as separate arguments. Disjoint, and each piece
+ may need conversion back to float. */
+ if (argn < 6)
+ {
+ valp = &argp[argn - 6];
+ sts(valp, argp[argn - 6]);
+ }
+ if (argn + 1 < 6)
+ sts(valp + 4, argp[argn + 1 - 6]);
+ else
+ *(UINT32 *)(valp + 4) = argp[argn + 1];
+ break;
+
+ case FFI_TYPE_DOUBLE:
+ /* Passed as separate arguments. Only disjoint if one part
+ is in fp regs and the other is on the stack. */
+ if (argn < 5)
+ valp = &argp[argn - 6];
+ else if (argn == 5)
+ {
+ valp = alloca(16);
+ ((UINT64 *)valp)[0] = argp[5 - 6];
+ ((UINT64 *)valp)[1] = argp[6];
+ }
+ break;
+
+ case FFI_TYPE_LONGDOUBLE:
+ goto by_reference;
+
+ default:
+ abort();
+ }
+ argn += 2;
+ break;
+
+ default:
+ abort ();
+ }
+
+ avalue[i] = valp;
+ }
+
+ /* Invoke the closure. */
+ fun (cif, rvalue, avalue, user_data);
+
+ /* Tell ffi_closure_SYSV how to perform return type promotions. */
+ return (flags >> SW64_LD_SHIFT) & 0xff;
+}
diff --git a/src/sw64/ffitarget.h b/src/sw64/ffitarget.h
new file mode 100644
index 0000000..ae50a54
--- /dev/null
+++ b/src/sw64/ffitarget.h
@@ -0,0 +1,58 @@
+/* -----------------------------------------------------------------*-C-*-
+ ffitarget.h - Copyright (c) 2012 Anthony Green
+ Copyright (c) 1996-2003 Red Hat, Inc.
+ Copyright (c) 2021 UnionTech Software Technology Co., Ltd.
+ Target configuration macros for Sunway.
+
+ 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
+
+#define FFI_TARGET_SPECIFIC_STACK_SPACE_ALLOCATION
+#define FFI_TARGET_HAS_COMPLEX_TYPE
+
+/* ---- Definitions for closures ----------------------------------------- */
+
+#define FFI_CLOSURES 1
+#define FFI_GO_CLOSURES 1
+#define FFI_TRAMPOLINE_SIZE 24
+#define FFI_NATIVE_RAW_API 0
+
+#endif
diff --git a/src/sw64/internal.h b/src/sw64/internal.h
new file mode 100644
index 0000000..7a7492b
--- /dev/null
+++ b/src/sw64/internal.h
@@ -0,0 +1,23 @@
+#define SW64_ST_VOID 0
+#define SW64_ST_INT 1
+#define SW64_ST_FLOAT 2
+#define SW64_ST_DOUBLE 3
+#define SW64_ST_CPLXF 4
+#define SW64_ST_CPLXD 5
+
+#define SW64_LD_VOID 0
+#define SW64_LD_INT64 1
+#define SW64_LD_INT32 2
+#define SW64_LD_UINT16 3
+#define SW64_LD_SINT16 4
+#define SW64_LD_UINT8 5
+#define SW64_LD_SINT8 6
+#define SW64_LD_FLOAT 7
+#define SW64_LD_DOUBLE 8
+#define SW64_LD_CPLXF 9
+#define SW64_LD_CPLXD 10
+
+#define SW64_ST_SHIFT 0
+#define SW64_LD_SHIFT 8
+#define SW64_RET_IN_MEM 0x10000
+#define SW64_FLAGS(S, L) (((L) << SW64_LD_SHIFT) | (S))
diff --git a/src/sw64/sysv.S b/src/sw64/sysv.S
new file mode 100644
index 0000000..4568584
--- /dev/null
+++ b/src/sw64/sysv.S
@@ -0,0 +1,283 @@
+/* -----------------------------------------------------------------------
+ sysv.S - Copyright (c) 1998, 2001, 2007, 2008, 2011, 2014 Red Hat
+ Copyright (c) 2021, UnionTech Software Technology Co., Ltd.
+
+ Sunway/SYSV Foreign Function Interface
+
+ 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>
+#include <ffi_cfi.h>
+#include "internal.h"
+
+ .arch sw6
+ .text
+
+/* Aid in building a direct addressed jump table, 4 insns per entry. */
+.macro E index
+ .align 4
+ .org 99b + \index * 16
+.endm
+
+/* ffi_call_SYSV (void *stack, void *frame, unsigned flags,
+ void *raddr, void (*fnaddr)(void), void *closure)
+
+ Bit o trickiness here -- FRAME is the base of the stack frame
+ for this function. This has been allocated by ffi_call. We also
+ deallocate some of the stack that has been alloca'd. */
+
+ .align 4
+ .globl ffi_call_SYSV
+ .ent ffi_call_SYSV
+ FFI_HIDDEN(ffi_call_SYSV)
+
+ffi_call_SYSV:
+ cfi_startproc
+ cfi_def_cfa($17, 32)
+ mov $16, $30
+ stl $26, 0($17)
+ stl $15, 8($17)
+ mov $17, $15
+ .prologue 0
+ cfi_def_cfa_register($15)
+ cfi_rel_offset($26, 0)
+ cfi_rel_offset($15, 8)
+
+ stl $18, 16($17) # save flags into frame
+ stl $19, 24($17) # save rvalue into frame
+ mov $20, $27 # fn into place for call
+ mov $21, $1 # closure into static chain
+
+ # Load up all of the (potential) argument registers.
+ ldl $16, 0($30)
+ fldd $f16, 0($30)
+ fldd $f17, 8($30)
+ ldl $17, 8($30)
+ fldd $f18, 16($30)
+ ldl $18, 16($30)
+ fldd $f19, 24($30)
+ ldl $19, 24($30)
+ fldd $f20, 32($30)
+ ldl $20, 32($30)
+ fldd $f21, 40($30)
+ ldl $21, 40($30)
+
+ # Deallocate the register argument area.
+ ldi $30, 48($30)
+
+ call $26, ($27), 0
+0:
+ ldih $29, 0($26) !gpdisp!1
+ ldl $2, 24($15) # reload rvalue
+ ldi $29, 0($29) !gpdisp!1
+ ldl $3, 16($15) # reload flags
+ ldi $1, 99f-0b($26)
+ ldl $26, 0($15)
+ ldl $15, 8($15)
+ cfi_restore($26)
+ cfi_restore($15)
+ cfi_def_cfa($sp, 0)
+ seleq $2, SW64_ST_VOID, $3, $3 # mash null rvalue to void
+ addl $3, $3, $3
+ s8addl $3, $1, $1 # 99f + stcode * 16
+ jmp $31, ($1), $st_int
+
+ .align 4
+99:
+E SW64_ST_VOID
+ ret
+E SW64_ST_INT
+$st_int:
+ stl $0, 0($2)
+ ret
+E SW64_ST_FLOAT
+ fsts $f0, 0($2)
+ ret
+E SW64_ST_DOUBLE
+ fstd $f0, 0($2)
+ ret
+E SW64_ST_CPLXF
+ fsts $f0, 0($2)
+ fsts $f1, 4($2)
+ ret
+E SW64_ST_CPLXD
+ fstd $f0, 0($2)
+ fstd $f1, 8($2)
+ ret
+
+ cfi_endproc
+ .end ffi_call_SYSV
+
+/* ffi_closure_SYSV(...)
+
+ Receives the closure argument in $1. */
+
+#define CLOSURE_FS (16*8)
+
+ .align 4
+ .globl ffi_go_closure_SYSV
+ .ent ffi_go_closure_SYSV
+ FFI_HIDDEN(ffi_go_closure_SYSV)
+
+ffi_go_closure_SYSV:
+ cfi_startproc
+ ldgp $29, 0($27)
+ subl $30, CLOSURE_FS, $30
+ cfi_adjust_cfa_offset(CLOSURE_FS)
+ stl $26, 0($30)
+ .prologue 1
+ cfi_rel_offset($26, 0)
+
+ stl $16, 10*8($30)
+ stl $17, 11*8($30)
+ stl $18, 12*8($30)
+
+ ldl $16, 8($1) # load cif
+ ldl $17, 16($1) # load fun
+ mov $1, $18 # closure is user_data
+ br $do_closure
+
+ cfi_endproc
+ .end ffi_go_closure_SYSV
+
+ .align 4
+ .globl ffi_closure_SYSV
+ .ent ffi_closure_SYSV
+ FFI_HIDDEN(ffi_closure_SYSV)
+
+ffi_closure_SYSV:
+ cfi_startproc
+ ldgp $29, 0($27)
+ subl $30, CLOSURE_FS, $30
+ cfi_adjust_cfa_offset(CLOSURE_FS)
+ stl $26, 0($30)
+ .prologue 1
+ cfi_rel_offset($26, 0)
+
+ # Store all of the potential argument registers in va_list format.
+ stl $16, 10*8($30)
+ stl $17, 11*8($30)
+ stl $18, 12*8($30)
+
+ ldl $16, 24($1) # load cif
+ ldl $17, 32($1) # load fun
+ ldl $18, 40($1) # load user_data
+
+$do_closure:
+ stl $19, 13*8($30)
+ stl $20, 14*8($30)
+ stl $21, 15*8($30)
+ fstd $f16, 4*8($30)
+ fstd $f17, 5*8($30)
+ fstd $f18, 6*8($30)
+ fstd $f19, 7*8($30)
+ fstd $f20, 8*8($30)
+ fstd $f21, 9*8($30)
+
+ # Call ffi_closure_SYSV_inner to do the bulk of the work.
+ ldi $19, 2*8($30)
+ ldi $20, 10*8($30)
+ call $26, ffi_closure_SYSV_inner
+0:
+ ldih $29, 0($26) !gpdisp!2
+ ldi $2, 99f-0b($26)
+ s4addl $0, 0, $1 # ldcode * 4
+ ldl $0, 16($30) # preload return value
+ s4addl $1, $2, $1 # 99f + ldcode * 16
+ ldi $29, 0($29) !gpdisp!2
+ ldl $26, 0($30)
+ cfi_restore($26)
+ jmp $31, ($1), $load_32
+
+.macro epilogue
+ addl $30, CLOSURE_FS, $30
+ cfi_adjust_cfa_offset(-CLOSURE_FS)
+ ret
+ .align 4
+ cfi_adjust_cfa_offset(CLOSURE_FS)
+.endm
+
+ .align 4
+99:
+E SW64_LD_VOID
+ epilogue
+
+E SW64_LD_INT64
+ epilogue
+
+E SW64_LD_INT32
+$load_32:
+ sextl $0, $0
+ epilogue
+
+E SW64_LD_UINT16
+ zapnot $0, 3, $0
+ epilogue
+
+E SW64_LD_SINT16
+#ifdef __sw_64_bwx__
+ sexth $0, $0
+#else
+ sll $0, 48, $0
+ sra $0, 48, $0
+#endif
+ epilogue
+
+E SW64_LD_UINT8
+ and $0, 0xff, $0
+ epilogue
+
+E SW64_LD_SINT8
+#ifdef __sw_64_bwx__
+ sextb $0, $0
+#else
+ sll $0, 56, $0
+ sra $0, 56, $0
+#endif
+ epilogue
+
+E SW64_LD_FLOAT
+ flds $f0, 16($sp)
+ epilogue
+
+E SW64_LD_DOUBLE
+ fldd $f0, 16($sp)
+ epilogue
+
+E SW64_LD_CPLXF
+ flds $f0, 16($sp)
+ flds $f1, 20($sp)
+ epilogue
+
+E SW64_LD_CPLXD
+ fldd $f0, 16($sp)
+ fldd $f1, 24($sp)
+ epilogue
+
+ cfi_endproc
+ .end ffi_closure_SYSV
+
+#if defined __SYSV__ && defined __linux__
+ .section .note.GNU-stack,"",@progbits
+#endif
diff --git a/testsuite/libffi.complex/cls_complex_va_float.c b/testsuite/libffi.complex/cls_complex_va_float.c
index 2b17826..0861ac6 100644
--- a/testsuite/libffi.complex/cls_complex_va_float.c
+++ b/testsuite/libffi.complex/cls_complex_va_float.c
@@ -6,11 +6,11 @@
/* { dg-do run } */
-/* Alpha splits _Complex into two arguments. It's illegal to pass
+/* Alpha/Sunway splits _Complex into two arguments. It's illegal to pass
float through varargs, so _Complex float goes badly. In sort of
gets passed as _Complex double, but the compiler doesn't agree
with itself on this issue. */
-/* { dg-do run { xfail alpha*-*-* } } */
+/* { dg-do run { xfail alpha*-*-* sw64*-*-* sw_64*-*-* } } */
#include "complex_defs_float.inc"
#include "cls_complex_va.inc"
--
2.31.1
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