[OE-core] [PATCH] gstreamer: Add RISC-V support

[Alistair Francis]

Backport RISC-V support from master Gstreamer.

Signed-off-by: Alistair Francis <alistair.francis at wdc.com>
---
 ...stconfig.h.in-initial-RISC-V-support.patch | 28 +++++++++++++++++++
 .../gstreamer/gstreamer1.0_1.14.4.bb          |  3 ++
 2 files changed, 31 insertions(+)
 create mode 100644 meta/recipes-multimedia/gstreamer/files/0002-gstconfig.h.in-initial-RISC-V-support.patch

diff --git a/meta/recipes-multimedia/gstreamer/files/0002-gstconfig.h.in-initial-RISC-V-support.patch b/meta/recipes-multimedia/gstreamer/files/0002-gstconfig.h.in-initial-RISC-V-support.patch
new file mode 100644
index 0000000000..8d8f8dca00
--- /dev/null
+++ b/meta/recipes-multimedia/gstreamer/files/0002-gstconfig.h.in-initial-RISC-V-support.patch
@@ -0,0 +1,28 @@
+From 8a156d1725ecd03f2e8cdc8874e081dda2d3b43d Mon Sep 17 00:00:00 2001
+From: Aurelien Jarno <aurelien at aurel32.net>
+Date: Sun, 15 Apr 2018 00:49:55 +0200
+Subject: [PATCH] gstconfig.h.in: initial RISC-V support
+
+RISC-V supports unaligned accesses, but these might run extremely slowly
+depending on the implementation. Therefore set GST_HAVE_UNALIGNED_ACCESS
+to 0 on this architecture.
+
+https://bugzilla.gnome.org/show_bug.cgi?id=795271
+Upstream-Status: Accepted [1.15.1 - https://bugzilla.gnome.org/show_bug.cgi?id=795271]
+---
+ gst/gstconfig.h.in | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gst/gstconfig.h.in b/gst/gstconfig.h.in
+index 6351c04da..33dfed1f6 100644
+--- a/gst/gstconfig.h.in
++++ b/gst/gstconfig.h.in
+@@ -104,7 +104,7 @@
+  * http://docs.oracle.com/cd/E19205-01/820-4155/c++_faq.html#Vers6
+  * https://software.intel.com/en-us/node/583402
+  */
+-#if defined(__alpha__) || defined(__arc__) || defined(__arm__) || defined(__aarch64__) || defined(__bfin) || defined(__hppa__) || defined(__nios2__) || defined(__MICROBLAZE__) || defined(__mips__) || defined(__or1k__) || defined(__sh__) || defined(__SH4__) || defined(__sparc__) || defined(__sparc) || defined(__ia64__) || defined(_M_ALPHA) || defined(_M_ARM) || defined(_M_IA64) || defined(__xtensa__) || defined(__e2k__)
++#if defined(__alpha__) || defined(__arc__) || defined(__arm__) || defined(__aarch64__) || defined(__bfin) || defined(__hppa__) || defined(__nios2__) || defined(__MICROBLAZE__) || defined(__mips__) || defined(__or1k__) || defined(__sh__) || defined(__SH4__) || defined(__sparc__) || defined(__sparc) || defined(__ia64__) || defined(_M_ALPHA) || defined(_M_ARM) || defined(_M_IA64) || defined(__xtensa__) || defined(__e2k__) || defined(__riscv)
+ #  define GST_HAVE_UNALIGNED_ACCESS 0
+ #elif defined(__i386__) || defined(__i386) || defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__ppc__) || defined(__ppc64__) || defined(__powerpc__) || defined(__powerpc64__) || defined(__m68k__) || defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || defined(__s390__) || defined(__s390x__) || defined(__zarch__)
+ #  define GST_HAVE_UNALIGNED_ACCESS 1
diff --git a/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.14.4.bb b/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.14.4.bb
index 232234b888..c3bac1f658 100644
--- a/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.14.4.bb
+++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.14.4.bb
@@ -30,6 +30,9 @@ SRC_URI = " \
 SRC_URI[md5sum] = "f67fbbc42bd85a0701df119f52fb52bd"
 SRC_URI[sha256sum] = "f94f6696c5f05a3b3a9183e39c5f5c0b779f75a04c0efa497e7920afa985ffc7"
 
+SRC_URI_append_riscv64 = " file://0002-gstconfig.h.in-initial-RISC-V-support.patch"
+SRC_URI_append_riscv32 = " file://0002-gstconfig.h.in-initial-RISC-V-support.patch"
+
 PACKAGECONFIG ??= "${@bb.utils.contains('PTEST_ENABLED', '1', 'tests', '', d)} \
                    "
 
-- 
2.19.1