diff --git a/lib/libcompiler_rt/Makefile.inc b/lib/libcompiler_rt/Makefile.inc
--- a/lib/libcompiler_rt/Makefile.inc
+++ b/lib/libcompiler_rt/Makefile.inc
@@ -132,7 +132,6 @@
 #
 .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
 SRCF+=		divxc3
-SRCF+=		extendxftf2
 SRCF+=		fixxfdi
 SRCF+=		fixxfti
 SRCF+=		fixunsxfdi
@@ -142,7 +141,6 @@
 SRCF+=		floatuntixf
 SRCF+=		mulxc3
 SRCF+=		powixf2
-SRCF+=		trunctfxf2
 
 # Avoid using SSE2 instructions on i386, if unsupported.
 .if ${MACHINE_CPUARCH} == "i386" && empty(MACHINE_CPU:Msse2)
@@ -154,6 +152,12 @@
 .endif
 .endif
 
+# 128-bit float is an amd64 feature
+.if ${MACHINE_CPUARCH} == "amd64"
+SRCF+=		extendxftf2
+SRCF+=		trunctfxf2
+.endif
+
 # __cpu_model support, only used on aarch64 and x86
 .if ${MACHINE_CPUARCH} == "aarch64"
 SRCS+=		cpu_model/aarch64.c
diff --git a/lib/libgcc_s/Symbol.map b/lib/libgcc_s/Symbol.map
--- a/lib/libgcc_s/Symbol.map
+++ b/lib/libgcc_s/Symbol.map
@@ -191,15 +191,14 @@
 	__bswapsi2;
 };
 
-#if defined(__aarch64__) || defined(__riscv)
 GCC_4.6.0 {
+#if defined(__aarch64__) || defined(__riscv)
 	__addtf3;
 	__cmptf2;
 	__divtf3;
 	__eqtf2;
 	__extenddftf2;
 	__extendsftf2;
-	__extendxftf2;
 	__fixtfdi;
 	__fixtfsi;
 	__fixtfti;
@@ -221,10 +220,13 @@
 	__subtf3;
 	__trunctfdf2;
 	__trunctfsf2;
-	__trunctfxf2;
 	__unordtf2;
-};
 #endif
+#if defined(__amd64__)
+	__extendxftf2;
+	__trunctfxf2;
+#endif
+};
 
 GCC_7.0.0 {
 #ifdef __i386__