diff --git a/libc/startup/linux/riscv64/start.cpp b/libc/startup/linux/riscv64/start.cpp
--- a/libc/startup/linux/riscv64/start.cpp
+++ b/libc/startup/linux/riscv64/start.cpp
@@ -122,7 +122,13 @@
   uint64_t value;
 };
 
+extern "C" {
+extern intptr_t __global_pointer$;
+}
+
 __attribute__((noinline)) static void do_start() {
+  void *ptr = &__global_pointer$;
+  LIBC_INLINE_ASM("ld gp, %0\n\t" : : "m"(ptr));
   auto tid = __llvm_libc::syscall_impl(SYS_gettid);
   if (tid <= 0)
     __llvm_libc::syscall_impl(SYS_exit, 1);