libffi: Make it build for MIPS o32

This solves the following errors:

src/mips/o32.S: Assembler messages:
src/mips/o32.S:286: Error: opcode not supported on this processor:

    mips32r2 (mips32r2) `s.d $f12,((16*4)-10*4)($fp)'
  src/mips/o32.S:287: Error: opcode not supported on this processor:
    mips32r2 (mips32r2) `s.d $f14,((16*4)-8*4)($fp)'

---
 ...-missed-ifndef-for-__mips_soft_float.patch | 30 +++++++++++++++++++
 meta/recipes-support/libffi/libffi_3.3~rc0.bb |  1 +
 2 files changed, 31 insertions(+)
 create mode 100644 meta/recipes-support/libffi/libffi/0001-Fixed-missed-ifndef-for-__mips_soft_float.patch

new file mode 100644
index 0000000000..a20bc3f4ed
@@ -0,0 +1,30 @@
+From 4149a7627a998731cc246d3f58a36808745d04c8 Mon Sep 17 00:00:00 2001
+From: Carl Hurd <[email protected]>
+Date: Wed, 18 Jul 2018 09:04:32 -0400
+Subject: [PATCH] Fixed missed #ifndef for __mips_soft_float
+
+---
+Upstream-Status: Submitted [https://github.com/libffi/libffi/pull/442]
+
+ src/mips/o32.S | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/mips/o32.S b/src/mips/o32.S
+index 44e74cb..799139b 100644
+--- a/src/mips/o32.S
++++ b/src/mips/o32.S
+@@ -282,9 +282,11 @@ $LCFI12:
+ 	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:
+ 	# prepare arguments for ffi_closure_mips_inner_O32
+ 	REG_L	a0, 4($15)	 # cif 
+-- 
+2.21.0
+

index dadde0b2a0..3e2845546e 100644
@@ -12,6 +12,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=3610bb17683a0089ed64055416b2ae1b"
 
 SRC_URI = "https://github.com/libffi/libffi/releases/download/v3.3-rc0/libffi-3.3-rc0.tar.gz \
            file://not-win32.patch \
+           file://0001-Fixed-missed-ifndef-for-__mips_soft_float.patch \
            "
 SRC_URI[md5sum] = "8d2a82a78faf10a5e53c27d986e8f04e"
 SRC_URI[sha256sum] = "403d67aabf1c05157855ea2b1d9950263fb6316536c8c333f5b9ab1eb2f20ecf"

2.21.0

== Series Details ==

Series: libffi: Make it build for MIPS o32
Revision: 1
URL : https://patchwork.openembedded.org/series/19446/
State : failure

== Summary ==

Thank you for submitting this patch series to OpenEmbedded Core. This is an automated response. Several tests have been executed on the proposed series by patchtest resulting in the following failures:

* Issue A patch file has been added, but does not have a Signed-off-by tag [test_signed_off_by_presence]
Suggested fix Sign off the added patch file (meta/recipes-support/libffi/libffi/0001-Fixed-missed-ifndef-for-__mips_soft_float.patch)

If you believe any of these test results are incorrect, please reply to the mailing list ([email protected]) raising your concerns. Otherwise we would appreciate you correcting the issues and submitting a new version of the patchset if applicable. Please ensure you add/increment the version number when sending the new version (i.e. [PATCH] -> [PATCH v2] -> [PATCH v3] -> ...).

---

Guidelines:     https://www.openembedded.org/wiki/Commit_Patch_Message_Guidelines
Test framework: http://git.yoctoproject.org/cgit/cgit.cgi/patchtest
Test suite:     http://git.yoctoproject.org/cgit/cgit.cgi/patchtest-oe