diff --git a/configure.in b/configure.in
index 8f66709..34a8acd 100644
--- a/configure.in
+++ b/configure.in
@@ -3602,11 +3602,27 @@ if test "$result" = "yes"; then
 fi
 AC_SUBST(HAVE_ARM_SIMD)
 
+AC_CACHE_CHECK(for ARM EABI HARD,
+    ac_cv_gcc_arm_eabi_hard,
+    [AC_TRY_COMPILE([],
+                      [
+#if defined(__ARM_PCS_VFP)
+  return 0;
+#else
+#error Not ARM EABI HARD.
+#endif
+    ],
+    ac_cv_gcc_arm_eabi_hard="yes",
+    ac_cv_gcc_arm_eabi_hard="no")])
+if test "$ac_cv_gcc_arm_eabi_hard" == "no"; then
+    SOFTFP_FLAGS="-mfloat-abi=softfp"
+fi
+
 AC_MSG_CHECKING(for ARM NEON support in compiler)
 _SAVE_CFLAGS="$CFLAGS"
 if test "$GNU_CC"; then
   # gcc needs -mfpu=neon to recognize NEON instructions
-  CFLAGS="$CFLAGS -mfpu=neon -mfloat-abi=softfp"
+  CFLAGS="$CFLAGS -mfpu=neon $SOFTFP_FLAGS"
 fi
 # We try to link so that this also fails when
 # building with LTO.
@@ -7165,9 +7181,9 @@ if test -n "$MOZ_THUMB2"; then
       if test "$GNU_CC"; then
         AC_DEFINE(MOZ_THUMB2)
         AC_DEFINE(MOZ_ARM_ARCH)
-        CFLAGS="$CFLAGS -march=armv7-a -mthumb -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
-        CXXFLAGS="$CXXFLAGS -march=armv7-a -mthumb -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
-        ASFLAGS="$ASFLAGS -march=armv7-a -mthumb -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
+        CFLAGS="$CFLAGS -march=armv7-a -mthumb $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
+        CXXFLAGS="$CXXFLAGS -march=armv7-a -mthumb $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
+        ASFLAGS="$ASFLAGS -march=armv7-a -mthumb $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
       else
         AC_MSG_ERROR([--enable-thumb2 is not supported for non-GNU toolchains])
       fi
@@ -7181,9 +7197,9 @@ elif test "$MOZ_ARM_ARCH" = "armv7"; then
     arm*)
       if test "$GNU_CC"; then
         AC_DEFINE(MOZ_ARM_ARCH)
-        CFLAGS="$CFLAGS -march=armv7-a -marm -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
-        CXXFLAGS="$CXXFLAGS -march=armv7-a -marm -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
-        ASFLAGS="$ASFLAGS -march=armv7-a -marm -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
+        CFLAGS="$CFLAGS -march=armv7-a -marm $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
+        CXXFLAGS="$CXXFLAGS -march=armv7-a -marm $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
+        ASFLAGS="$ASFLAGS -march=armv7-a -marm $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
       else
         AC_MSG_ERROR([--with-cpu-arch=armv7 is not supported for non-GNU toolchains])
       fi
diff --git a/js/src/configure.in b/js/src/configure.in
index 3460091..a8972a6 100644
--- a/js/src/configure.in
+++ b/js/src/configure.in
@@ -3466,11 +3466,27 @@ if test "$result" = "yes"; then
 fi
 AC_SUBST(HAVE_ARM_SIMD)
 
+AC_CACHE_CHECK(for ARM EABI HARD,
+    ac_cv_gcc_arm_eabi_hard,
+    [AC_TRY_COMPILE([],
+                      [
+#if defined(__ARM_PCS_VFP)
+  return 0;
+#else
+#error Not ARM EABI HARD.
+#endif
+    ],
+    ac_cv_gcc_arm_eabi_hard="yes",
+    ac_cv_gcc_arm_eabi_hard="no")])
+if test "$ac_cv_gcc_arm_eabi_hard" == "no"; then
+    SOFTFP_FLAGS="-mfloat-abi=softfp"
+fi
+
 AC_MSG_CHECKING(for ARM NEON support in compiler)
 _SAVE_CFLAGS="$CFLAGS"
 if test "$GNU_CC"; then
   # gcc needs -mfpu=neon to recognize NEON instructions
-  CFLAGS="$CFLAGS -mfpu=neon -mfloat-abi=softfp"
+  CFLAGS="$CFLAGS -mfpu=neon $SOFTFP_FLAGS"
 fi
 AC_TRY_COMPILE([],
                [asm("vadd.i8 d0, d0, d0");],
@@ -4607,9 +4623,9 @@ if test -n "$MOZ_THUMB2"; then
       if test "$GNU_CC"; then
         AC_DEFINE(MOZ_THUMB2)
         AC_DEFINE(MOZ_ARM_ARCH)
-        CFLAGS="$CFLAGS -march=armv7-a -mthumb -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
-        CXXFLAGS="$CXXFLAGS -march=armv7-a -mthumb -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
-        ASFLAGS="$ASFLAGS -march=armv7-a -mthumb -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
+        CFLAGS="$CFLAGS -march=armv7-a -mthumb $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
+        CXXFLAGS="$CXXFLAGS -march=armv7-a -mthumb $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
+        ASFLAGS="$ASFLAGS -march=armv7-a -mthumb $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
       else
         AC_MSG_ERROR([--enable-thumb2 is not supported for non-GNU toolchains])
       fi
@@ -4623,9 +4639,9 @@ elif test "$MOZ_ARM_ARCH" = "armv7"; then
     arm*)
       if test "$GNU_CC"; then
         AC_DEFINE(MOZ_ARM_ARCH)
-        CFLAGS="$CFLAGS -march=armv7-a -marm -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
-        CXXFLAGS="$CXXFLAGS -march=armv7-a -marm -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
-        ASFLAGS="$ASFLAGS -march=armv7-a -marm -mfloat-abi=softfp $MOZ_ARM_VFP_FLAGS"
+        CFLAGS="$CFLAGS -march=armv7-a -marm $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
+        CXXFLAGS="$CXXFLAGS -march=armv7-a -marm $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
+        ASFLAGS="$ASFLAGS -march=armv7-a -marm $SOFTFP_FLAGS $MOZ_ARM_VFP_FLAGS"
       else
         AC_MSG_ERROR([--with-cpu-arch=armv7 is not supported for non-GNU toolchains])
       fi
diff --git a/toolkit/crashreporter/google-breakpad/src/client/windows/build/common.gypi b/toolkit/crashreporter/google-breakpad/src/client/windows/build/common.gypi
index fb4e6d8..481f2b9 100755
--- a/toolkit/crashreporter/google-breakpad/src/client/windows/build/common.gypi
+++ b/toolkit/crashreporter/google-breakpad/src/client/windows/build/common.gypi
@@ -996,8 +996,8 @@
                   ['armv7==1', {
                     'cflags': [
                       '-march=armv7-a',
-                      '-mtune=cortex-a8',
-                      '-mfloat-abi=softfp',
+                      '-mtune=cortex-a9',
+                      '-mfloat-abi=hard',
                     ],
                     'conditions': [
                       ['arm_neon==1', {