filter out xtensa specific compiler options for gcc itself.

toolchain/gcc/Makefile

@@ -7,9 +7,15 @@ include Makefile.inc
 
 # disable SSP for libstdc++
 ifeq ($(ADK_TARGET_LIB_MUSL),y)
+TARGET_CFLAGS:=		$(filter-out -fstack-protector-all,$(TARGET_CFLAGS))
 TARGET_CXXFLAGS:=	$(filter-out -fstack-protector-all,$(TARGET_CXXFLAGS))
 endif
 
+ifeq ($(ADK_LINUX_XTENSA),y)
+TARGET_CFLAGS:=		$(filter-out -mtext-section-literals,$(TARGET_CFLAGS))
+TARGET_CXXFLAGS:=	$(filter-out -mtext-section-literals,$(TARGET_CXXFLAGS))
+endif
+
 # for multilib m68k uClinux, we need to filter out some flags
 ifeq ($(ADK_TARGET_UCLINUX),y)
 TARGET_CFLAGS:=		$(filter-out -mcpu=5208,$(TARGET_CFLAGS))