Create and use a TARGET_ASFLAGS, defaulting to TARGET_CFLAGS.

MIPS .S files reasonably assume they are not in mips16 mode. Because
"-mips16 -mno-mips16" results in -mno-mips16, I can append that to the
TARGET_ASFLAGS. This should be done with $(filter-out)?

Signed-off-by: Jay Carlson <n...@nop.com>
---
 rules.mk |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/rules.mk b/rules.mk
index e657eec..ecde2a6 100644
--- a/rules.mk
+++ b/rules.mk
@@ -63,6 +63,9 @@ endif
 ifneq ($(findstring -mips32r2,$(TARGET_OPTIMIZATION)),)
   ARCH_SUFFIX:=_r2
 endif
+ifneq ($(findstring -mips16,$(TARGET_OPTIMIZATION)),)
+  TARGET_ASFLAGS_OVERRIDE:=-mno-mips16
+endif
 ifdef CONFIG_HAS_SPE_FPU
   TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
 endif
@@ -109,6 +112,7 @@ BUILD_LOG_DIR:=$(TOPDIR)/logs
 TARGET_PATH:=$(STAGING_DIR_HOST)/bin:$(subst $(space),:,$(filter-out 
.,$(filter-out ./,$(subst :,$(space),$(PATH)))))
 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3)
 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
+TARGET_ASFLAGS = $(TARGET_CFLAGS) $(TARGET_ASFLAGS_OVERRIDE)
 TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
 TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
@@ -206,7 +210,7 @@ endif
 
 TARGET_CONFIGURE_OPTS = \
   AR=$(TARGET_CROSS)ar \
-  AS="$(TARGET_CC) -c $(TARGET_CFLAGS)" \
+  AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
   LD=$(TARGET_CROSS)ld \
   NM=$(TARGET_CROSS)nm \
   CC="$(TARGET_CC)" \
-- 
1.7.9.5

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