On Wed, Aug 14, 2019 at 3:42 PM akuster808 <akuster...@gmail.com> wrote:
>
>
>
> On 8/14/19 3:29 PM, Khem Raj wrote:
> > libffi 3.1 release has been a bit aged and new architectures, compilers
> > have since been come on stage to compile it, we have been carrying
> > patches, but its better to use the latest 3.3 rc0 which has lot of these
> > issues handled and is in good shape.
>
> Will the RC part cause the PE to be invoked when 3.3 comes out? I did
> this on wireshark and shot myself in the foot.
>
I am expecting the releases to be 3.3.0 but looking into the history
of releases it
could be 3.3 so yes you are right, Probably I will renable the recipe
to libffi_3.2+3.3-rc0.bb
and that should fix this
> - armin
> >
> > Signed-off-by: Khem Raj <raj.k...@gmail.com>
> > ---
> > .../libffi/0001-New-RISC-V-port-281.patch | 827 ------------------
> > .../0001-libffi-Support-musl-x32-build.patch | 30 -
> > ...e-compiler-internal-define-for-linux.patch | 32 -
> > ...-mips-fix-MIPS-softfloat-build-issue.patch | 177 ----
> > .../libffi/libffi/not-win32.patch | 10 +-
> > .../{libffi_3.2.1.bb => libffi_3.3-rc0.bb} | 11 +-
> > 6 files changed, 8 insertions(+), 1079 deletions(-)
> > delete mode 100644
> > meta/recipes-support/libffi/libffi/0001-New-RISC-V-port-281.patch
> > delete mode 100644
> > meta/recipes-support/libffi/libffi/0001-libffi-Support-musl-x32-build.patch
> > delete mode 100644
> > meta/recipes-support/libffi/libffi/0001-mips-Use-compiler-internal-define-for-linux.patch
> > delete mode 100644
> > meta/recipes-support/libffi/libffi/0001-mips-fix-MIPS-softfloat-build-issue.patch
> > rename meta/recipes-support/libffi/{libffi_3.2.1.bb => libffi_3.3-rc0.bb}
> > (76%)
> >
> > diff --git
> > a/meta/recipes-support/libffi/libffi/0001-New-RISC-V-port-281.patch
> > b/meta/recipes-support/libffi/libffi/0001-New-RISC-V-port-281.patch
> > deleted file mode 100644
> > index 589c4d3c44..0000000000
> > --- a/meta/recipes-support/libffi/libffi/0001-New-RISC-V-port-281.patch
> > +++ /dev/null
> > @@ -1,827 +0,0 @@
> > -From 8ac73103bf12ce4f776940cb17f3ced15a362f23 Mon Sep 17 00:00:00 2001
> > -From: Stef O'Rear <sore...@gmail.com>
> > -Date: Sun, 11 Mar 2018 05:55:15 -0700
> > -Subject: [PATCH] New RISC-V port (#281)
> > -
> > -* Add RISC-V support
> > -
> > -This patch adds support for the RISC-V architecture (https://riscv.org).
> > -
> > -This patch has been tested using QEMU user-mode emulation and GCC 7.2.0
> > -in the following configurations:
> > -
> > -* -march=rv32imac -mabi=ilp32
> > -* -march=rv32g -mabi=ilp32d
> > -* -march=rv64imac -mabi=lp64
> > -* -march=rv64g -mabi=lp64d
> > -
> > -The ABI currently can be found at
> > -https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md .
> > -
> > -* Add RISC-V to README
> > -
> > -* RISC-V: fix configure.host
> > -
> > -Upstream-Status: Backport
> > [https://github.com/libffi/libffi/commit/3840d49aaa831d649b1597518a2903dfed0d57f3]
> > -Signed-off-by: Alistair Francis <alistair.fran...@wdc.com>
> > ----
> > - Makefile.am | 4 +
> > - configure.ac | 5 +
> > - src/riscv/ffi.c | 445 ++++++++++++++++++++++++++++++++++++++++++
> > - src/riscv/ffitarget.h | 68 +++++++
> > - src/riscv/sysv.S | 214 ++++++++++++++++++++
> > - 5 files changed, 736 insertions(+)
> > - create mode 100644 src/riscv/ffi.c
> > - create mode 100644 src/riscv/ffitarget.h
> > - create mode 100644 src/riscv/sysv.S
> > -
> > -diff --git a/Makefile.am b/Makefile.am
> > -index 0e40451..3837650 100644
> > ---- a/Makefile.am
> > -+++ b/Makefile.am
> > -@@ -32,6 +32,7 @@ EXTRA_DIST = LICENSE ChangeLog.v1 ChangeLog.libgcj
> > \
> > - src/powerpc/asm.h src/powerpc/aix.S src/powerpc/darwin.S \
> > - src/powerpc/aix_closure.S src/powerpc/darwin_closure.S \
> > - src/powerpc/ffi_darwin.c src/powerpc/ffitarget.h \
> > -+ src/riscv/ffi.c src/riscv/ffitarget.h src/riscv/sysv.S \
> > - src/s390/ffi.c src/s390/sysv.S src/s390/ffitarget.h \
> > - src/sh/ffi.c src/sh/sysv.S src/sh/ffitarget.h src/sh64/ffi.c \
> > - src/sh64/sysv.S src/sh64/ffitarget.h src/sparc/v8.S \
> > -@@ -122,6 +123,9 @@ endif
> > - if MIPS
> > - nodist_libffi_la_SOURCES += src/mips/ffi.c src/mips/o32.S src/mips/n32.S
> > - endif
> > -+if RISCV
> > -+nodist_libffi_la_SOURCES += src/riscv/ffi.c src/riscv/sysv.S
> > -+endif
> > - if BFIN
> > - nodist_libffi_la_SOURCES += src/bfin/ffi.c src/bfin/sysv.S
> > - endif
> > -diff --git a/configure.ac b/configure.ac
> > -index ce30853..33375aa 100644
> > ---- a/configure.ac
> > -+++ b/configure.ac
> > -@@ -226,6 +226,10 @@ case "$host" in
> > - TARGET=MIPS; TARGETDIR=mips
> > - ;;
> > -
> > -+ riscv*-*-*)
> > -+ TARGET=RISCV; TARGETDIR=riscv
> > -+ ;;
> > -+
> > - nios2*-linux*)
> > - TARGET=NIOS2; TARGETDIR=nios2
> > - ;;
> > -@@ -298,6 +302,7 @@ if test $TARGETDIR = unknown; then
> > - fi
> > -
> > - AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
> > -+AM_CONDITIONAL(RISCV, test x$TARGET = xRISCV)
> > - AM_CONDITIONAL(BFIN, test x$TARGET = xBFIN)
> > - AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
> > - AM_CONDITIONAL(X86, test x$TARGET = xX86)
> > -diff --git a/src/riscv/ffi.c b/src/riscv/ffi.c
> > -new file mode 100644
> > -index 0000000..b744fdd
> > ---- /dev/null
> > -+++ b/src/riscv/ffi.c
> > -@@ -0,0 +1,445 @@
> > -+/* -----------------------------------------------------------------------
> > -+ ffi.c - Copyright (c) 2015 Michael Knyszek <mknys...@berkeley.edu>
> > -+ 2015 Andrew Waterman <water...@cs.berkeley.edu>
> > -+ 2018 Stef O'Rear <sore...@gmail.com>
> > -+ Based on MIPS N32/64 port
> > -+
> > -+ RISC-V 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 <stdint.h>
> > -+
> > -+#if __riscv_float_abi_double
> > -+#define ABI_FLEN 64
> > -+#define ABI_FLOAT double
> > -+#elif __riscv_float_abi_single
> > -+#define ABI_FLEN 32
> > -+#define ABI_FLOAT float
> > -+#endif
> > -+
> > -+#define NARGREG 8
> > -+#define STKALIGN 16
> > -+#define MAXCOPYARG (2 * sizeof(double))
> > -+
> > -+typedef struct call_context
> > -+{
> > -+#if ABI_FLEN
> > -+ ABI_FLOAT fa[8];
> > -+#endif
> > -+ size_t a[8];
> > -+ /* used by the assembly code to in-place construct its own stack
> > frame */
> > -+ char frame[16];
> > -+} call_context;
> > -+
> > -+typedef struct call_builder
> > -+{
> > -+ call_context *aregs;
> > -+ int used_integer;
> > -+ int used_float;
> > -+ size_t *used_stack;
> > -+} call_builder;
> > -+
> > -+/* integer (not pointer) less than ABI XLEN */
> > -+/* FFI_TYPE_INT does not appear to be used */
> > -+#if __SIZEOF_POINTER__ == 8
> > -+#define IS_INT(type) ((type) >= FFI_TYPE_UINT8 && (type) <=
> > FFI_TYPE_SINT64)
> > -+#else
> > -+#define IS_INT(type) ((type) >= FFI_TYPE_UINT8 && (type) <=
> > FFI_TYPE_SINT32)
> > -+#endif
> > -+
> > -+#if ABI_FLEN
> > -+typedef struct {
> > -+ char as_elements, type1, offset2, type2;
> > -+} float_struct_info;
> > -+
> > -+#if ABI_FLEN >= 64
> > -+#define IS_FLOAT(type) ((type) >= FFI_TYPE_FLOAT && (type) <=
> > FFI_TYPE_DOUBLE)
> > -+#else
> > -+#define IS_FLOAT(type) ((type) == FFI_TYPE_FLOAT)
> > -+#endif
> > -+
> > -+static ffi_type **flatten_struct(ffi_type *in, ffi_type **out, ffi_type
> > **out_end) {
> > -+ int i;
> > -+ if (out == out_end) return out;
> > -+ if (in->type != FFI_TYPE_STRUCT) {
> > -+ *(out++) = in;
> > -+ } else {
> > -+ for (i = 0; in->elements[i]; i++)
> > -+ out = flatten_struct(in->elements[i], out, out_end);
> > -+ }
> > -+ return out;
> > -+}
> > -+
> > -+/* Structs with at most two fields after flattening, one of which is of
> > -+ floating point type, are passed in multiple registers if sufficient
> > -+ registers are available. */
> > -+static float_struct_info struct_passed_as_elements(call_builder *cb,
> > ffi_type *top) {
> > -+ float_struct_info ret = {0, 0, 0, 0};
> > -+ ffi_type *fields[3];
> > -+ int num_floats, num_ints;
> > -+ int num_fields = flatten_struct(top, fields, fields + 3) - fields;
> > -+
> > -+ if (num_fields == 1) {
> > -+ if (IS_FLOAT(fields[0]->type)) {
> > -+ ret.as_elements = 1;
> > -+ ret.type1 = fields[0]->type;
> > -+ }
> > -+ } else if (num_fields == 2) {
> > -+ num_floats = IS_FLOAT(fields[0]->type) +
> > IS_FLOAT(fields[1]->type);
> > -+ num_ints = IS_INT(fields[0]->type) + IS_INT(fields[1]->type);
> > -+ if (num_floats == 0 || num_floats + num_ints != 2)
> > -+ return ret;
> > -+ if (cb->used_float + num_floats > NARGREG || cb->used_integer +
> > (2 - num_floats) > NARGREG)
> > -+ return ret;
> > -+ if (!IS_FLOAT(fields[0]->type) && !IS_FLOAT(fields[1]->type))
> > -+ return ret;
> > -+
> > -+ ret.type1 = fields[0]->type;
> > -+ ret.type2 = fields[1]->type;
> > -+ ret.offset2 = ALIGN(fields[0]->size, fields[1]->alignment);
> > -+ ret.as_elements = 1;
> > -+ }
> > -+
> > -+ return ret;
> > -+}
> > -+#endif
> > -+
> > -+/* allocates a single register, float register, or XLEN-sized stack slot
> > to a datum */
> > -+static void marshal_atom(call_builder *cb, int type, void *data) {
> > -+ size_t value = 0;
> > -+ switch (type) {
> > -+ case FFI_TYPE_UINT8: value = *(uint8_t *)data; break;
> > -+ case FFI_TYPE_SINT8: value = *(int8_t *)data; break;
> > -+ case FFI_TYPE_UINT16: value = *(uint16_t *)data; break;
> > -+ case FFI_TYPE_SINT16: value = *(int16_t *)data; break;
> > -+ /* 32-bit quantities are always sign-extended in the ABI */
> > -+ case FFI_TYPE_UINT32: value = *(int32_t *)data; break;
> > -+ case FFI_TYPE_SINT32: value = *(int32_t *)data; break;
> > -+#if __SIZEOF_POINTER__ == 8
> > -+ case FFI_TYPE_UINT64: value = *(uint64_t *)data; break;
> > -+ case FFI_TYPE_SINT64: value = *(int64_t *)data; break;
> > -+#endif
> > -+ case FFI_TYPE_POINTER: value = *(size_t *)data; break;
> > -+
> > -+ /* float values may be recoded in an implementation-defined way
> > -+ by hardware conforming to 2.1 or earlier, so use asm to
> > -+ reinterpret floats as doubles */
> > -+#if ABI_FLEN >= 32
> > -+ case FFI_TYPE_FLOAT:
> > -+ asm("" : "=f"(cb->aregs->fa[cb->used_float++]) : "0"(*(float
> > *)data));
> > -+ return;
> > -+#endif
> > -+#if ABI_FLEN >= 64
> > -+ case FFI_TYPE_DOUBLE:
> > -+ asm("" : "=f"(cb->aregs->fa[cb->used_float++]) : "0"(*(double
> > *)data));
> > -+ return;
> > -+#endif
> > -+ default: FFI_ASSERT(0); break;
> > -+ }
> > -+
> > -+ if (cb->used_integer == NARGREG) {
> > -+ *cb->used_stack++ = value;
> > -+ } else {
> > -+ cb->aregs->a[cb->used_integer++] = value;
> > -+ }
> > -+}
> > -+
> > -+static void unmarshal_atom(call_builder *cb, int type, void *data) {
> > -+ size_t value;
> > -+ switch (type) {
> > -+#if ABI_FLEN >= 32
> > -+ case FFI_TYPE_FLOAT:
> > -+ asm("" : "=f"(*(float *)data) :
> > "0"(cb->aregs->fa[cb->used_float++]));
> > -+ return;
> > -+#endif
> > -+#if ABI_FLEN >= 64
> > -+ case FFI_TYPE_DOUBLE:
> > -+ asm("" : "=f"(*(double *)data) :
> > "0"(cb->aregs->fa[cb->used_float++]));
> > -+ return;
> > -+#endif
> > -+ }
> > -+
> > -+ if (cb->used_integer == NARGREG) {
> > -+ value = *cb->used_stack++;
> > -+ } else {
> > -+ value = cb->aregs->a[cb->used_integer++];
> > -+ }
> > -+
> > -+ switch (type) {
> > -+ case FFI_TYPE_UINT8: *(uint8_t *)data = value; break;
> > -+ case FFI_TYPE_SINT8: *(uint8_t *)data = value; break;
> > -+ case FFI_TYPE_UINT16: *(uint16_t *)data = value; break;
> > -+ case FFI_TYPE_SINT16: *(uint16_t *)data = value; break;
> > -+ case FFI_TYPE_UINT32: *(uint32_t *)data = value; break;
> > -+ case FFI_TYPE_SINT32: *(uint32_t *)data = value; break;
> > -+#if __SIZEOF_POINTER__ == 8
> > -+ case FFI_TYPE_UINT64: *(uint64_t *)data = value; break;
> > -+ case FFI_TYPE_SINT64: *(uint64_t *)data = value; break;
> > -+#endif
> > -+ case FFI_TYPE_POINTER: *(size_t *)data = value; break;
> > -+ default: FFI_ASSERT(0); break;
> > -+ }
> > -+}
> > -+
> > -+/* adds an argument to a call, or a not by reference return value */
> > -+static void marshal(call_builder *cb, ffi_type *type, int var, void
> > *data) {
> > -+ size_t realign[2];
> > -+
> > -+#if ABI_FLEN
> > -+ if (!var && type->type == FFI_TYPE_STRUCT) {
> > -+ float_struct_info fsi = struct_passed_as_elements(cb, type);
> > -+ if (fsi.as_elements) {
> > -+ marshal_atom(cb, fsi.type1, data);
> > -+ if (fsi.offset2)
> > -+ marshal_atom(cb, fsi.type2, ((char*)data) + fsi.offset2);
> > -+ return;
> > -+ }
> > -+ }
> > -+
> > -+ if (!var && cb->used_float < NARGREG && IS_FLOAT(type->type)) {
> > -+ marshal_atom(cb, type->type, data);
> > -+ return;
> > -+ }
> > -+#endif
> > -+
> > -+ if (type->size > 2 * __SIZEOF_POINTER__) {
> > -+ /* pass by reference */
> > -+ marshal_atom(cb, FFI_TYPE_POINTER, &data);
> > -+ } else if (IS_INT(type->type) || type->type == FFI_TYPE_POINTER) {
> > -+ marshal_atom(cb, type->type, data);
> > -+ } else {
> > -+ /* overlong integers, soft-float floats, and structs without
> > special
> > -+ float handling are treated identically from this point on */
> > -+
> > -+ /* variadics are aligned even in registers */
> > -+ if (type->alignment > __SIZEOF_POINTER__) {
> > -+ if (var)
> > -+ cb->used_integer = ALIGN(cb->used_integer, 2);
> > -+ cb->used_stack = (size_t *)ALIGN(cb->used_stack,
> > 2*__SIZEOF_POINTER__);
> > -+ }
> > -+
> > -+ memcpy(realign, data, type->size);
> > -+ if (type->size > 0)
> > -+ marshal_atom(cb, FFI_TYPE_POINTER, realign);
> > -+ if (type->size > __SIZEOF_POINTER__)
> > -+ marshal_atom(cb, FFI_TYPE_POINTER, realign + 1);
> > -+ }
> > -+}
> > -+
> > -+/* for arguments passed by reference returns the pointer, otherwise the
> > arg is copied (up to MAXCOPYARG bytes) */
> > -+static void *unmarshal(call_builder *cb, ffi_type *type, int var, void
> > *data) {
> > -+ size_t realign[2];
> > -+ void *pointer;
> > -+
> > -+#if ABI_FLEN
> > -+ if (!var && type->type == FFI_TYPE_STRUCT) {
> > -+ float_struct_info fsi = struct_passed_as_elements(cb, type);
> > -+ if (fsi.as_elements) {
> > -+ unmarshal_atom(cb, fsi.type1, data);
> > -+ if (fsi.offset2)
> > -+ unmarshal_atom(cb, fsi.type2, ((char*)data) +
> > fsi.offset2);
> > -+ return data;
> > -+ }
> > -+ }
> > -+
> > -+ if (!var && cb->used_float < NARGREG && IS_FLOAT(type->type)) {
> > -+ unmarshal_atom(cb, type->type, data);
> > -+ return data;
> > -+ }
> > -+#endif
> > -+
> > -+ if (type->size > 2 * __SIZEOF_POINTER__) {
> > -+ /* pass by reference */
> > -+ unmarshal_atom(cb, FFI_TYPE_POINTER, (char*)&pointer);
> > -+ return pointer;
> > -+ } else if (IS_INT(type->type) || type->type == FFI_TYPE_POINTER) {
> > -+ unmarshal_atom(cb, type->type, data);
> > -+ return data;
> > -+ } else {
> > -+ /* overlong integers, soft-float floats, and structs without
> > special
> > -+ float handling are treated identically from this point on */
> > -+
> > -+ /* variadics are aligned even in registers */
> > -+ if (type->alignment > __SIZEOF_POINTER__) {
> > -+ if (var)
> > -+ cb->used_integer = ALIGN(cb->used_integer, 2);
> > -+ cb->used_stack = (size_t *)ALIGN(cb->used_stack,
> > 2*__SIZEOF_POINTER__);
> > -+ }
> > -+
> > -+ if (type->size > 0)
> > -+ unmarshal_atom(cb, FFI_TYPE_POINTER, realign);
> > -+ if (type->size > __SIZEOF_POINTER__)
> > -+ unmarshal_atom(cb, FFI_TYPE_POINTER, realign + 1);
> > -+ memcpy(data, realign, type->size);
> > -+ return data;
> > -+ }
> > -+}
> > -+
> > -+static int passed_by_ref(call_builder *cb, ffi_type *type, int var) {
> > -+#if ABI_FLEN
> > -+ if (!var && type->type == FFI_TYPE_STRUCT) {
> > -+ float_struct_info fsi = struct_passed_as_elements(cb, type);
> > -+ if (fsi.as_elements) return 0;
> > -+ }
> > -+#endif
> > -+
> > -+ return type->size > 2 * __SIZEOF_POINTER__;
> > -+}
> > -+
> > -+/* Perform machine dependent cif processing */
> > -+ffi_status ffi_prep_cif_machdep(ffi_cif *cif) {
> > -+ cif->riscv_nfixedargs = cif->nargs;
> > -+ return FFI_OK;
> > -+}
> > -+
> > -+/* Perform machine dependent cif processing when we have a variadic
> > function */
> > -+
> > -+ffi_status ffi_prep_cif_machdep_var(ffi_cif *cif, unsigned int
> > nfixedargs, unsigned int ntotalargs) {
> > -+ cif->riscv_nfixedargs = nfixedargs;
> > -+ return FFI_OK;
> > -+}
> > -+
> > -+/* Low level routine for calling functions */
> > -+extern void ffi_call_asm(void *stack, struct call_context *regs, void
> > (*fn)(void)) FFI_HIDDEN;
> > -+
> > -+void ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
> > -+{
> > -+ /* this is a conservative estimate, assuming a complex return value
> > and
> > -+ that all remaining arguments are long long / __int128 */
> > -+ size_t arg_bytes = cif->nargs <= 3 ? 0 :
> > -+ ALIGN(2 * sizeof(size_t) * (cif->nargs - 3), STKALIGN);
> > -+ size_t rval_bytes = 0;
> > -+ if (rvalue == NULL && cif->rtype->size > 2*__SIZEOF_POINTER__)
> > -+ rval_bytes = ALIGN(cif->rtype->size, STKALIGN);
> > -+ size_t alloc_size = arg_bytes + rval_bytes + sizeof(call_context);
> > -+
> > -+ /* the assembly code will deallocate all stack data at lower addresses
> > -+ than the argument region, so we need to allocate the frame and the
> > -+ return value after the arguments in a single allocation */
> > -+ size_t alloc_base;
> > -+ /* Argument region must be 16-byte aligned */
> > -+ if (_Alignof(max_align_t) >= STKALIGN) {
> > -+ /* since sizeof long double is normally 16, the compiler will
> > -+ guarantee alloca alignment to at least that much */
> > -+ alloc_base = (size_t)alloca(alloc_size);
> > -+ } else {
> > -+ alloc_base = ALIGN(alloca(alloc_size + STKALIGN - 1), STKALIGN);
> > -+ }
> > -+
> > -+ if (rval_bytes)
> > -+ rvalue = (void*)(alloc_base + arg_bytes);
> > -+
> > -+ call_builder cb;
> > -+ cb.used_float = cb.used_integer = 0;
> > -+ cb.aregs = (call_context*)(alloc_base + arg_bytes + rval_bytes);
> > -+ cb.used_stack = (void*)alloc_base;
> > -+
> > -+ int return_by_ref = passed_by_ref(&cb, cif->rtype, 0);
> > -+ if (return_by_ref)
> > -+ marshal(&cb, &ffi_type_pointer, 0, &rvalue);
> > -+
> > -+ int i;
> > -+ for (i = 0; i < cif->nargs; i++)
> > -+ marshal(&cb, cif->arg_types[i], i >= cif->riscv_nfixedargs,
> > avalue[i]);
> > -+
> > -+ ffi_call_asm((void*)alloc_base, cb.aregs, fn);
> > -+
> > -+ cb.used_float = cb.used_integer = 0;
> > -+ if (!return_by_ref && rvalue)
> > -+ unmarshal(&cb, cif->rtype, 0, rvalue);
> > -+}
> > -+
> > -+extern void ffi_closure_asm(void) FFI_HIDDEN;
> > -+
> > -+ffi_status ffi_prep_closure_loc(ffi_closure *closure, ffi_cif *cif, void
> > (*fun)(ffi_cif*,void*,void**,void*), void *user_data, void *codeloc)
> > -+{
> > -+ uint32_t *tramp = (uint32_t *) &closure->tramp[0];
> > -+ uint64_t fn = (uint64_t) (uintptr_t) ffi_closure_asm;
> > -+
> > -+ if (cif->abi <= FFI_FIRST_ABI || cif->abi >= FFI_LAST_ABI)
> > -+ return FFI_BAD_ABI;
> > -+
> > -+ /* we will call ffi_closure_inner with codeloc, not closure, but as
> > long
> > -+ as the memory is readable it should work */
> > -+
> > -+ tramp[0] = 0x00000317; /* auipc t1, 0 (i.e. t0 <- codeloc) */
> > -+#if __SIZEOF_POINTER__ == 8
> > -+ tramp[1] = 0x01033383; /* ld t2, 16(t1) */
> > -+#else
> > -+ tramp[1] = 0x01032383; /* lw t2, 16(t1) */
> > -+#endif
> > -+ tramp[2] = 0x00038067; /* jr t2 */
> > -+ tramp[3] = 0x00000013; /* nop */
> > -+ tramp[4] = fn;
> > -+ tramp[5] = fn >> 32;
> > -+
> > -+ closure->cif = cif;
> > -+ closure->fun = fun;
> > -+ closure->user_data = user_data;
> > -+
> > -+ __builtin___clear_cache(codeloc, codeloc + FFI_TRAMPOLINE_SIZE);
> > -+
> > -+ return FFI_OK;
> > -+}
> > -+
> > -+/* Called by the assembly code with aregs pointing to saved argument
> > registers
> > -+ and stack pointing to the stacked arguments. Return values passed in
> > -+ registers will be reloaded from aregs. */
> > -+void FFI_HIDDEN ffi_closure_inner(size_t *stack, call_context *aregs,
> > ffi_closure *closure) {
> > -+ ffi_cif *cif = closure->cif;
> > -+ void **avalue = alloca(cif->nargs * sizeof(void*));
> > -+ /* storage for arguments which will be copied by unmarshal(). We
> > could
> > -+ theoretically avoid the copies in many cases and use at most 128
> > bytes
> > -+ of memory, but allocating disjoint storage for each argument is
> > -+ simpler. */
> > -+ char *astorage = alloca(cif->nargs * MAXCOPYARG);
> > -+ void *rvalue;
> > -+ call_builder cb;
> > -+ int return_by_ref;
> > -+ int i;
> > -+
> > -+ cb.aregs = aregs;
> > -+ cb.used_integer = cb.used_float = 0;
> > -+ cb.used_stack = stack;
> > -+
> > -+ return_by_ref = passed_by_ref(&cb, cif->rtype, 0);
> > -+ if (return_by_ref)
> > -+ unmarshal(&cb, &ffi_type_pointer, 0, &rvalue);
> > -+ else
> > -+ rvalue = alloca(cif->rtype->size);
> > -+
> > -+ for (i = 0; i < cif->nargs; i++)
> > -+ avalue[i] = unmarshal(&cb, cif->arg_types[i],
> > -+ i >= cif->riscv_nfixedargs, astorage + i*MAXCOPYARG);
> > -+
> > -+ (closure->fun)(cif, rvalue, avalue, closure->user_data);
> > -+
> > -+ if (!return_by_ref && cif->rtype->type != FFI_TYPE_VOID) {
> > -+ cb.used_integer = cb.used_float = 0;
> > -+ marshal(&cb, cif->rtype, 0, rvalue);
> > -+ }
> > -+}
> > -diff --git a/src/riscv/ffitarget.h b/src/riscv/ffitarget.h
> > -new file mode 100644
> > -index 0000000..fcaa899
> > ---- /dev/null
> > -+++ b/src/riscv/ffitarget.h
> > -@@ -0,0 +1,68 @@
> > -+/* -----------------------------------------------------------------*-C-*-
> > -+ ffitarget.h - 2014 Michael Knyszek
> > -+
> > -+ Target configuration macros for RISC-V.
> > -+
> > -+ 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 __riscv
> > -+#error "libffi was configured for a RISC-V target but this does not
> > appear to be a RISC-V compiler."
> > -+#endif
> > -+
> > -+#ifndef LIBFFI_ASM
> > -+
> > -+typedef unsigned long ffi_arg;
> > -+typedef signed long ffi_sarg;
> > -+
> > -+/* FFI_UNUSED_NN and riscv_unused are to maintain ABI compatibility with a
> > -+ distributed Berkeley patch from 2014, and can be removed at SONAME
> > bump */
> > -+typedef enum ffi_abi {
> > -+ FFI_FIRST_ABI = 0,
> > -+ FFI_SYSV,
> > -+ FFI_UNUSED_1,
> > -+ FFI_UNUSED_2,
> > -+ FFI_UNUSED_3,
> > -+ FFI_LAST_ABI,
> > -+
> > -+ FFI_DEFAULT_ABI = FFI_SYSV
> > -+} ffi_abi;
> > -+
> > -+#endif /* LIBFFI_ASM */
> > -+
> > -+/* ---- Definitions for closures
> > ----------------------------------------- */
> > -+
> > -+#define FFI_CLOSURES 1
> > -+#define FFI_TRAMPOLINE_SIZE 24
> > -+#define FFI_NATIVE_RAW_API 0
> > -+#define FFI_EXTRA_CIF_FIELDS unsigned riscv_nfixedargs; unsigned
> > riscv_unused;
> > -+#define FFI_TARGET_SPECIFIC_VARIADIC
> > -+
> > -+#endif
> > -+
> > -diff --git a/src/riscv/sysv.S b/src/riscv/sysv.S
> > -new file mode 100644
> > -index 0000000..2d09865
> > ---- /dev/null
> > -+++ b/src/riscv/sysv.S
> > -@@ -0,0 +1,214 @@
> > -+/* -----------------------------------------------------------------------
> > -+ ffi.c - Copyright (c) 2015 Michael Knyszek <mknys...@berkeley.edu>
> > -+ 2015 Andrew Waterman <water...@cs.berkeley.edu>
> > -+ 2018 Stef O'Rear <sore...@gmail.com>
> > -+
> > -+ RISC-V 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>
> > -+
> > -+/* Define aliases so that we can handle all ABIs uniformly */
> > -+
> > -+#if __SIZEOF_POINTER__ == 8
> > -+#define PTRS 8
> > -+#define LARG ld
> > -+#define SARG sd
> > -+#else
> > -+#define PTRS 4
> > -+#define LARG lw
> > -+#define SARG sw
> > -+#endif
> > -+
> > -+#if __riscv_float_abi_double
> > -+#define FLTS 8
> > -+#define FLARG fld
> > -+#define FSARG fsd
> > -+#elif __riscv_float_abi_single
> > -+#define FLTS 4
> > -+#define FLARG flw
> > -+#define FSARG fsw
> > -+#else
> > -+#define FLTS 0
> > -+#endif
> > -+
> > -+#define fp s0
> > -+
> > -+ .text
> > -+ .globl ffi_call_asm
> > -+ .type ffi_call_asm, @function
> > -+ .hidden ffi_call_asm
> > -+/*
> > -+ struct call_context {
> > -+ floatreg fa[8];
> > -+ intreg a[8];
> > -+ intreg pad[rv32 ? 2 : 0];
> > -+ intreg save_fp, save_ra;
> > -+ }
> > -+ void ffi_call_asm(size_t *stackargs, struct call_context *regargs,
> > -+ void (*fn)(void));
> > -+*/
> > -+
> > -+#define FRAME_LEN (8 * FLTS + 8 * PTRS + 16)
> > -+
> > -+ffi_call_asm:
> > -+ .cfi_startproc
> > -+
> > -+ /*
> > -+ We are NOT going to set up an ordinary stack frame. In order to
> > pass
> > -+ the stacked args to the called function, we adjust our stack
> > pointer to
> > -+ a0, which is in the _caller's_ alloca area. We establish our own
> > stack
> > -+ frame at the end of the call_context.
> > -+
> > -+ Anything below the arguments will be freed at this point, although
> > we
> > -+ preserve the call_context so that it can be read back in the caller.
> > -+ */
> > -+
> > -+ .cfi_def_cfa 11, FRAME_LEN # interim CFA based on a1
> > -+ SARG fp, FRAME_LEN - 2*PTRS(a1)
> > -+ .cfi_offset 8, -2*PTRS
> > -+ SARG ra, FRAME_LEN - 1*PTRS(a1)
> > -+ .cfi_offset 1, -1*PTRS
> > -+
> > -+ addi fp, a1, FRAME_LEN
> > -+ mv sp, a0
> > -+ .cfi_def_cfa 8, 0 # our frame is fully set up
> > -+
> > -+ # Load arguments
> > -+ mv t1, a2
> > -+
> > -+#if FLTS
> > -+ FLARG fa0, -FRAME_LEN+0*FLTS(fp)
> > -+ FLARG fa1, -FRAME_LEN+1*FLTS(fp)
> > -+ FLARG fa2, -FRAME_LEN+2*FLTS(fp)
> > -+ FLARG fa3, -FRAME_LEN+3*FLTS(fp)
> > -+ FLARG fa4, -FRAME_LEN+4*FLTS(fp)
> > -+ FLARG fa5, -FRAME_LEN+5*FLTS(fp)
> > -+ FLARG fa6, -FRAME_LEN+6*FLTS(fp)
> > -+ FLARG fa7, -FRAME_LEN+7*FLTS(fp)
> > -+#endif
> > -+
> > -+ LARG a0, -FRAME_LEN+8*FLTS+0*PTRS(fp)
> > -+ LARG a1, -FRAME_LEN+8*FLTS+1*PTRS(fp)
> > -+ LARG a2, -FRAME_LEN+8*FLTS+2*PTRS(fp)
> > -+ LARG a3, -FRAME_LEN+8*FLTS+3*PTRS(fp)
> > -+ LARG a4, -FRAME_LEN+8*FLTS+4*PTRS(fp)
> > -+ LARG a5, -FRAME_LEN+8*FLTS+5*PTRS(fp)
> > -+ LARG a6, -FRAME_LEN+8*FLTS+6*PTRS(fp)
> > -+ LARG a7, -FRAME_LEN+8*FLTS+7*PTRS(fp)
> > -+
> > -+ /* Call */
> > -+ jalr t1
> > -+
> > -+ /* Save return values - only a0/a1 (fa0/fa1) are used */
> > -+#if FLTS
> > -+ FSARG fa0, -FRAME_LEN+0*FLTS(fp)
> > -+ FSARG fa1, -FRAME_LEN+1*FLTS(fp)
> > -+#endif
> > -+
> > -+ SARG a0, -FRAME_LEN+8*FLTS+0*PTRS(fp)
> > -+ SARG a1, -FRAME_LEN+8*FLTS+1*PTRS(fp)
> > -+
> > -+ /* Restore and return */
> > -+ addi sp, fp, -FRAME_LEN
> > -+ .cfi_def_cfa 2, FRAME_LEN
> > -+ LARG ra, -1*PTRS(fp)
> > -+ .cfi_restore 1
> > -+ LARG fp, -2*PTRS(fp)
> > -+ .cfi_restore 8
> > -+ ret
> > -+ .cfi_endproc
> > -+ .size ffi_call_asm, .-ffi_call_asm
> > -+
> > -+
> > -+/*
> > -+ ffi_closure_asm. Expects address of the passed-in ffi_closure in t1.
> > -+ void ffi_closure_inner(size_t *stackargs, struct call_context *regargs,
> > -+ ffi_closure *closure);
> > -+*/
> > -+
> > -+ .globl ffi_closure_asm
> > -+ .hidden ffi_closure_asm
> > -+ .type ffi_closure_asm, @function
> > -+ffi_closure_asm:
> > -+ .cfi_startproc
> > -+
> > -+ addi sp, sp, -FRAME_LEN
> > -+ .cfi_def_cfa_offset FRAME_LEN
> > -+
> > -+ /* make a frame */
> > -+ SARG fp, FRAME_LEN - 2*PTRS(sp)
> > -+ .cfi_offset 8, -2*PTRS
> > -+ SARG ra, FRAME_LEN - 1*PTRS(sp)
> > -+ .cfi_offset 1, -1*PTRS
> > -+ addi fp, sp, FRAME_LEN
> > -+
> > -+ /* save arguments */
> > -+#if FLTS
> > -+ FSARG fa0, 0*FLTS(sp)
> > -+ FSARG fa1, 1*FLTS(sp)
> > -+ FSARG fa2, 2*FLTS(sp)
> > -+ FSARG fa3, 3*FLTS(sp)
> > -+ FSARG fa4, 4*FLTS(sp)
> > -+ FSARG fa5, 5*FLTS(sp)
> > -+ FSARG fa6, 6*FLTS(sp)
> > -+ FSARG fa7, 7*FLTS(sp)
> > -+#endif
> > -+
> > -+ SARG a0, 8*FLTS+0*PTRS(sp)
> > -+ SARG a1, 8*FLTS+1*PTRS(sp)
> > -+ SARG a2, 8*FLTS+2*PTRS(sp)
> > -+ SARG a3, 8*FLTS+3*PTRS(sp)
> > -+ SARG a4, 8*FLTS+4*PTRS(sp)
> > -+ SARG a5, 8*FLTS+5*PTRS(sp)
> > -+ SARG a6, 8*FLTS+6*PTRS(sp)
> > -+ SARG a7, 8*FLTS+7*PTRS(sp)
> > -+
> > -+ /* enter C */
> > -+ addi a0, sp, FRAME_LEN
> > -+ mv a1, sp
> > -+ mv a2, t1
> > -+
> > -+ call ffi_closure_inner
> > -+
> > -+ /* return values */
> > -+#if FLTS
> > -+ FLARG fa0, 0*FLTS(sp)
> > -+ FLARG fa1, 1*FLTS(sp)
> > -+#endif
> > -+
> > -+ LARG a0, 8*FLTS+0*PTRS(sp)
> > -+ LARG a1, 8*FLTS+1*PTRS(sp)
> > -+
> > -+ /* restore and return */
> > -+ LARG ra, FRAME_LEN-1*PTRS(sp)
> > -+ .cfi_restore 1
> > -+ LARG fp, FRAME_LEN-2*PTRS(sp)
> > -+ .cfi_restore 8
> > -+ addi sp, sp, FRAME_LEN
> > -+ .cfi_def_cfa_offset 0
> > -+ ret
> > -+ .cfi_endproc
> > -+ .size ffi_closure_asm, .-ffi_closure_asm
> > diff --git
> > a/meta/recipes-support/libffi/libffi/0001-libffi-Support-musl-x32-build.patch
> >
> > b/meta/recipes-support/libffi/libffi/0001-libffi-Support-musl-x32-build.patch
> > deleted file mode 100644
> > index 6b167c8421..0000000000
> > ---
> > a/meta/recipes-support/libffi/libffi/0001-libffi-Support-musl-x32-build.patch
> > +++ /dev/null
> > @@ -1,30 +0,0 @@
> > -From 69c3906c85c791716bf650aa36d9361d22acf3fb Mon Sep 17 00:00:00 2001
> > -From: sweeaun <swee.aun.k...@intel.com>
> > -Date: Thu, 6 Jul 2017 16:32:46 -0700
> > -Subject: [PATCH] libffi: Support musl x32 build
> > -
> > -Support libffi build with target musl-x32.
> > -
> > -Upstream-Status: Pending
> > -
> > -Signed-off-by: sweeaun <swee.aun.k...@intel.com>
> > ----
> > - configure.ac | 2 +-
> > - 1 file changed, 1 insertion(+), 1 deletion(-)
> > -
> > -diff --git a/configure.ac b/configure.ac
> > -index a7bf5ee..8ebe99c 100644
> > ---- a/configure.ac
> > -+++ b/configure.ac
> > -@@ -177,7 +177,7 @@ case "$host" in
> > - TARGETDIR=x86
> > - if test $ac_cv_sizeof_size_t = 4; then
> > - case "$host" in
> > -- *-gnux32)
> > -+ *-gnux32 | *-muslx32)
> > - TARGET=X86_64
> > - ;;
> > - *)
> > ---
> > -2.7.4
> > -
> > diff --git
> > a/meta/recipes-support/libffi/libffi/0001-mips-Use-compiler-internal-define-for-linux.patch
> >
> > b/meta/recipes-support/libffi/libffi/0001-mips-Use-compiler-internal-define-for-linux.patch
> > deleted file mode 100644
> > index db96e63547..0000000000
> > ---
> > a/meta/recipes-support/libffi/libffi/0001-mips-Use-compiler-internal-define-for-linux.patch
> > +++ /dev/null
> > @@ -1,32 +0,0 @@
> > -From a5efaa96fd934eb245c234a5275fcf62698ef986 Mon Sep 17 00:00:00 2001
> > -From: Khem Raj <raj.k...@gmail.com>
> > -Date: Thu, 2 Apr 2015 21:38:03 -0700
> > -Subject: [PATCH] mips: Use compiler internal define for linux
> > -
> > -__linux__ is defined by compiler when building for
> > -linux platforms, lets use it
> > -
> > -
> > -Upstream-Status: Pending
> > -
> > -Signed-off-by: Khem Raj <raj.k...@gmail.com>
> > ----
> > - src/mips/ffitarget.h | 2 +-
> > - 1 file changed, 1 insertion(+), 1 deletion(-)
> > -
> > -diff --git a/src/mips/ffitarget.h b/src/mips/ffitarget.h
> > -index 717d659..6faa358 100644
> > ---- a/src/mips/ffitarget.h
> > -+++ b/src/mips/ffitarget.h
> > -@@ -32,7 +32,7 @@
> > - #error "Please do not include ffitarget.h directly into your source. Use
> > ffi.h instead."
> > - #endif
> > -
> > --#ifdef linux
> > -+#ifdef __linux__
> > - # include <asm/sgidefs.h>
> > - #elif defined(__rtems__)
> > - /*
> > ---
> > -2.1.4
> > -
> > diff --git
> > a/meta/recipes-support/libffi/libffi/0001-mips-fix-MIPS-softfloat-build-issue.patch
> >
> > b/meta/recipes-support/libffi/libffi/0001-mips-fix-MIPS-softfloat-build-issue.patch
> > deleted file mode 100644
> > index 61c9eb31d1..0000000000
> > ---
> > a/meta/recipes-support/libffi/libffi/0001-mips-fix-MIPS-softfloat-build-issue.patch
> > +++ /dev/null
> > @@ -1,177 +0,0 @@
> > -From 655e82c92d5c3875aee04322f1993d6b0774a7bf Mon Sep 17 00:00:00 2001
> > -From: Yousong Zhou <yszhou4t...@gmail.com>
> > -Date: Mon, 15 Aug 2016 15:00:13 +0800
> > -Subject: [PATCH] mips: fix MIPS softfloat build issue
> > -
> > -The patch for o32.S is taken from OpenWrt packages repo 3a7a4bf "libffi:
> > -fix MIPS softfloat build issue with current binutils"
> > -
> > -Signed-off-by: Felix Fietkau <n...@openwrt.org>
> > -Signed-off-by: Yousong Zhou <yszhou4t...@gmail.com>
> > ----
> > -Upstream-Status: Backport
> > [https://github.com/libffi/libffi/commit/2ded2a4f494165c93293afc14ab0be1243cf8c49]
> > - src/mips/n32.S | 17 +++++++++++++++++
> > - src/mips/o32.S | 17 +++++++++++++++++
> > - 2 files changed, 34 insertions(+)
> > -
> > -diff --git a/src/mips/n32.S b/src/mips/n32.S
> > -index c6985d3..8f25994 100644
> > ---- a/src/mips/n32.S
> > -+++ b/src/mips/n32.S
> > -@@ -107,6 +107,16 @@ loadregs:
> > -
> > - REG_L t6, 3*FFI_SIZEOF_ARG($fp) # load the flags word into t6.
> > -
> > -+#ifdef __mips_soft_float
> > -+ REG_L a0, 0*FFI_SIZEOF_ARG(t9)
> > -+ REG_L a1, 1*FFI_SIZEOF_ARG(t9)
> > -+ REG_L a2, 2*FFI_SIZEOF_ARG(t9)
> > -+ REG_L a3, 3*FFI_SIZEOF_ARG(t9)
> > -+ REG_L a4, 4*FFI_SIZEOF_ARG(t9)
> > -+ REG_L a5, 5*FFI_SIZEOF_ARG(t9)
> > -+ REG_L a6, 6*FFI_SIZEOF_ARG(t9)
> > -+ REG_L a7, 7*FFI_SIZEOF_ARG(t9)
> > -+#else
> > - and t4, t6, ((1<<FFI_FLAG_BITS)-1)
> > - REG_L a0, 0*FFI_SIZEOF_ARG(t9)
> > - beqz t4, arg1_next
> > -@@ -193,6 +203,7 @@ arg7_next:
> > - arg8_doublep:
> > - l.d $f19, 7*FFI_SIZEOF_ARG(t9)
> > - arg8_next:
> > -+#endif
> > -
> > - callit:
> > - # Load the function pointer
> > -@@ -214,6 +225,7 @@ retint:
> > - b epilogue
> > -
> > - retfloat:
> > -+#ifndef __mips_soft_float
> > - bne t6, FFI_TYPE_FLOAT, retdouble
> > - jal t9
> > - REG_L t4, 4*FFI_SIZEOF_ARG($fp)
> > -@@ -272,6 +284,7 @@ retstruct_f_d:
> > - s.s $f0, 0(t4)
> > - s.d $f2, 8(t4)
> > - b epilogue
> > -+#endif
> > -
> > - retstruct_d_soft:
> > - bne t6, FFI_TYPE_STRUCT_D_SOFT, retstruct_f_soft
> > -@@ -429,6 +442,7 @@ ffi_closure_N32:
> > - REG_S a6, A6_OFF2($sp)
> > - REG_S a7, A7_OFF2($sp)
> > -
> > -+#ifndef __mips_soft_float
> > - # Store all possible float/double registers.
> > - s.d $f12, F12_OFF2($sp)
> > - s.d $f13, F13_OFF2($sp)
> > -@@ -438,6 +452,7 @@ ffi_closure_N32:
> > - s.d $f17, F17_OFF2($sp)
> > - s.d $f18, F18_OFF2($sp)
> > - s.d $f19, F19_OFF2($sp)
> > -+#endif
> > -
> > - # Call ffi_closure_mips_inner_N32 to do the real work.
> > - LA t9, ffi_closure_mips_inner_N32
> > -@@ -458,6 +473,7 @@ cls_retint:
> > - b cls_epilogue
> > -
> > - cls_retfloat:
> > -+#ifndef __mips_soft_float
> > - bne v0, FFI_TYPE_FLOAT, cls_retdouble
> > - l.s $f0, V0_OFF2($sp)
> > - b cls_epilogue
> > -@@ -500,6 +516,7 @@ cls_retstruct_f_d:
> > - l.s $f0, V0_OFF2($sp)
> > - l.d $f2, V1_OFF2($sp)
> > - b cls_epilogue
> > -+#endif
> > -
> > - cls_retstruct_small2:
> > - REG_L v0, V0_OFF2($sp)
> > -diff --git a/src/mips/o32.S b/src/mips/o32.S
> > -index eb27981..429dd0a 100644
> > ---- a/src/mips/o32.S
> > -+++ b/src/mips/o32.S
> > -@@ -82,13 +82,16 @@ sixteen:
> > -
> > - ADDU $sp, 4 * FFI_SIZEOF_ARG # adjust $sp to new args
> > -
> > -+#ifndef __mips_soft_float
> > - bnez t0, pass_d # make it quick for int
> > -+#endif
> > - REG_L a0, 0*FFI_SIZEOF_ARG($sp) # just go ahead and load the
> > - REG_L a1, 1*FFI_SIZEOF_ARG($sp) # four regs.
> > - REG_L a2, 2*FFI_SIZEOF_ARG($sp)
> > - REG_L a3, 3*FFI_SIZEOF_ARG($sp)
> > - b call_it
> > -
> > -+#ifndef __mips_soft_float
> > - pass_d:
> > - bne t0, FFI_ARGS_D, pass_f
> > - l.d $f12, 0*FFI_SIZEOF_ARG($sp) # load $fp regs from args
> > -@@ -130,6 +133,7 @@ pass_f_d:
> > - # bne t0, FFI_ARGS_F_D, call_it
> > - l.s $f12, 0*FFI_SIZEOF_ARG($sp) # load $fp regs from args
> > - l.d $f14, 2*FFI_SIZEOF_ARG($sp) # passing double and float
> > -+#endif
> > -
> > - call_it:
> > - # Load the function pointer
> > -@@ -158,14 +162,23 @@ retfloat:
> > - bne t2, FFI_TYPE_FLOAT, retdouble
> > - jalr t9
> > - REG_L t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
> > -+#ifndef __mips_soft_float
> > - s.s $f0, 0(t0)
> > -+#else
> > -+ REG_S v0, 0(t0)
> > -+#endif
> > - b epilogue
> > -
> > - retdouble:
> > - bne t2, FFI_TYPE_DOUBLE, noretval
> > - jalr t9
> > - REG_L t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
> > -+#ifndef __mips_soft_float
> > - s.d $f0, 0(t0)
> > -+#else
> > -+ REG_S v1, 4(t0)
> > -+ REG_S v0, 0(t0)
> > -+#endif
> > - b epilogue
> > -
> > - noretval:
> > -@@ -261,9 +274,11 @@ $LCFI7:
> > - li $13, 1 # FFI_O32
> > - bne $16, $13, 1f # Skip fp save if FFI_O32_SOFT_FLOAT
> > -
> > -+#ifndef __mips_soft_float
> > - # Store all possible float/double registers.
> > - s.d $f12, FA_0_0_OFF2($fp)
> > - s.d $f14, FA_1_0_OFF2($fp)
> > -+#endif
> > - 1:
> > - # Call ffi_closure_mips_inner_O32 to do the work.
> > - la t9, ffi_closure_mips_inner_O32
> > -@@ -281,6 +296,7 @@ $LCFI7:
> > - li $13, 1 # FFI_O32
> > - bne $16, $13, 1f # Skip fp restore if FFI_O32_SOFT_FLOAT
> > -
> > -+#ifndef __mips_soft_float
> > - li $9, FFI_TYPE_FLOAT
> > - l.s $f0, V0_OFF2($fp)
> > - beq $8, $9, closure_done
> > -@@ -288,6 +304,7 @@ $LCFI7:
> > - li $9, FFI_TYPE_DOUBLE
> > - l.d $f0, V0_OFF2($fp)
> > - beq $8, $9, closure_done
> > -+#endif
> > - 1:
> > - REG_L $3, V1_OFF2($fp)
> > - REG_L $2, V0_OFF2($fp)
> > ---
> > -2.9.3
> > -
> > diff --git a/meta/recipes-support/libffi/libffi/not-win32.patch
> > b/meta/recipes-support/libffi/libffi/not-win32.patch
> > index 80c40a4742..86a7fc9e40 100644
> > --- a/meta/recipes-support/libffi/libffi/not-win32.patch
> > +++ b/meta/recipes-support/libffi/libffi/not-win32.patch
> > @@ -11,12 +11,10 @@ As this block is generally pointless, disable it.
> > Upstream-Status: Inappropriate
> > Signed-off-by: Ross Burton <ross.bur...@intel.com>
> >
> > -Index: libffi-3.2.1/configure.ac
> > -===================================================================
> > ---- libffi-3.2.1.orig/configure.ac
> > -+++ libffi-3.2.1/configure.ac
> > -@@ -592,7 +592,7 @@ AC_ARG_ENABLE(purify-safety,
> > -
> > +--- a/configure.ac
> > ++++ b/configure.ac
> > +@@ -350,7 +350,7 @@ AC_ARG_ENABLE(multi-os-directory,
> > +
> > # These variables are only ever used when we cross-build to X86_WIN32.
> > # And we only support this with GCC, so...
> > -if test "x$GCC" = "xyes"; then
> > diff --git a/meta/recipes-support/libffi/libffi_3.2.1.bb
> > b/meta/recipes-support/libffi/libffi_3.3-rc0.bb
> > similarity index 76%
> > rename from meta/recipes-support/libffi/libffi_3.2.1.bb
> > rename to meta/recipes-support/libffi/libffi_3.3-rc0.bb
> > index f2c684a7a6..764dd7c885 100644
> > --- a/meta/recipes-support/libffi/libffi_3.2.1.bb
> > +++ b/meta/recipes-support/libffi/libffi_3.3-rc0.bb
> > @@ -10,16 +10,13 @@ A layer must exist above `libffi' that handles type
> > conversions for values passe
> > LICENSE = "MIT"
> > LIC_FILES_CHKSUM = "file://LICENSE;md5=3610bb17683a0089ed64055416b2ae1b"
> >
> > +SRC_URI =
> > "https://github.com/libffi/${BPN}/releases/download/v${PV}/${BP}.tar.gz";
> > +
> > SRC_URI = "https://sourceware.org/pub/libffi/${BP}.tar.gz \
> > file://not-win32.patch \
> > - file://0001-mips-Use-compiler-internal-define-for-linux.patch \
> > - file://0001-mips-fix-MIPS-softfloat-build-issue.patch \
> > - file://0001-libffi-Support-musl-x32-build.patch \
> > - file://0001-New-RISC-V-port-281.patch \
> > "
> > -
> > -SRC_URI[md5sum] = "83b89587607e3eb65c70d361f13bab43"
> > -SRC_URI[sha256sum] =
> > "d06ebb8e1d9a22d19e38d63fdb83954253f39bedc5d46232a05645685722ca37"
> > +SRC_URI[md5sum] = "8d2a82a78faf10a5e53c27d986e8f04e"
> > +SRC_URI[sha256sum] =
> > "403d67aabf1c05157855ea2b1d9950263fb6316536c8c333f5b9ab1eb2f20ecf"
> >
> > EXTRA_OECONF += "--disable-builddir"
> > EXTRA_OEMAKE_class-target = "LIBTOOLFLAGS='--tag=CC'"
>
--
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