diff --git a/libc/arch-arm64/arm64.mk b/libc/arch-arm64/arm64.mk
index 6c4f6a6..91cd9fb 100644
--- a/libc/arch-arm64/arm64.mk
+++ b/libc/arch-arm64/arm64.mk
@@ -29,7 +29,7 @@
 libc_bionic_src_files_arm64 := \
     arch-arm64/bionic/__bionic_clone.S \
     arch-arm64/bionic/_exit_with_stack_teardown.S \
-    arch-arm64/bionic/__rt_sigreturn.S \
+    arch-arm64/bionic/__restore_rt.S \
     arch-arm64/bionic/_setjmp.S \
     arch-arm64/bionic/setjmp.S \
     arch-arm64/bionic/__set_tls.c \
diff --git a/libc/arch-arm64/bionic/__rt_sigreturn.S b/libc/arch-arm64/bionic/__restore_rt.S
similarity index 89%
rename from libc/arch-arm64/bionic/__rt_sigreturn.S
rename to libc/arch-arm64/bionic/__restore_rt.S
index 8fb6f0c..9506490 100644
--- a/libc/arch-arm64/bionic/__rt_sigreturn.S
+++ b/libc/arch-arm64/bionic/__restore_rt.S
@@ -28,7 +28,8 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY_PRIVATE(__rt_sigreturn)
-  mov     x8, __NR_rt_sigreturn
-  svc     #0
-END(__rt_sigreturn)
+// This function must have exactly this instruction sequence for gdb and libunwind.
+ENTRY_PRIVATE(__restore_rt)
+  mov x8, __NR_rt_sigreturn
+  svc #0
+END(__restore_rt)