1 files changed, 53 insertions, 0 deletions
diff --git a/recipes/xorg-lib/pixman/0006-Revert-ARM-SIMD-Try-without-any-CFLAGS-before-forcin.patch b/recipes/xorg-lib/pixman/0006-Revert-ARM-SIMD-Try-without-any-CFLAGS-before-forcin.patch
new file mode 100644
index 0000000000..3d8d4e8292
--- /dev/null
+++ b/recipes/xorg-lib/pixman/0006-Revert-ARM-SIMD-Try-without-any-CFLAGS-before-forcin.patch
@@ -0,0 +1,53 @@
+From 7f0adaef68c5b0bb1c5eb9f5db5792b71b8b8beb Mon Sep 17 00:00:00 2001
+From: Koen Kooi <koen@dominion.thruhere.net>
+Date: Fri, 19 Mar 2010 10:44:09 +0100
+Subject: [PATCH 6/6] Revert "ARM: SIMD: Try without any CFLAGS before forcing -mcpu="
+
+This forces -marm that results in runtime SIGILL on thumb userspace
+
+This reverts commit 18f0de452dc7e12e4cb544d761a626d5c6031663.
+---
+ configure.ac |   20 +++++---------------
+ 1 files changed, 5 insertions(+), 15 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index fc3ee24..f84a4dc 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -363,28 +363,18 @@ AM_CONDITIONAL(USE_VMX, test $have_vmx_intrinsics = yes)
+ 
+ dnl ===========================================================================
+ dnl Check for ARM SIMD instructions
+-ARM_SIMD_CFLAGS=""
++ARM_SIMD_CFLAGS="-mcpu=arm1136j-s"
+ 
+ have_arm_simd=no
+ AC_MSG_CHECKING(whether to use ARM SIMD assembler)
+-# check with default CFLAGS in case the toolchain turns on a sufficiently recent -mcpu=
++xserver_save_CFLAGS=$CFLAGS
++CFLAGS="$ARM_SIMD_CFLAGS $CFLAGS"
+ AC_COMPILE_IFELSE([
+ int main () {
+     asm("uqadd8 r1, r1, r2");
+     return 0;
+-}], have_arm_simd=yes,
+-    # check again with an explicit -mcpu= in case the toolchain defaults to an
+-    # older one; note that uqadd8 isn't available in Thumb mode on arm1136j-s
+-    # so we force ARM mode
+-    ARM_SIMD_CFLAGS="-mcpu=arm1136j-s -marm"
+-    xserver_save_CFLAGS=$CFLAGS
+-    CFLAGS="$ARM_SIMD_CFLAGS $CFLAGS"
+-    AC_COMPILE_IFELSE([
+-    int main () {
+-        asm("uqadd8 r1, r1, r2");
+-        return 0;
+-    }], have_arm_simd=yes)
+-    CFLAGS=$xserver_save_CFLAGS)
++}], have_arm_simd=yes)
++CFLAGS=$xserver_save_CFLAGS
+ 
+ AC_ARG_ENABLE(arm-simd,
+    [AC_HELP_STRING([--disable-arm-simd],
+-- 
+1.6.6.1
+