From 9fc785dcc669b5ac357363eb2d043a4cd99fd9b0 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jackpot51@gmail.com>
Date: Thu, 12 Jul 2018 07:40:53 -0600
Subject: [PATCH] Add stack_chk functionality

---
 build.rs          |  2 ++
 src/c/stack_chk.c | 10 ++++++++++
 2 files changed, 12 insertions(+)
 create mode 100644 src/c/stack_chk.c

diff --git a/build.rs b/build.rs
index b1e32728de..8f61a6d4b2 100644
--- a/build.rs
+++ b/build.rs
@@ -13,7 +13,9 @@ fn main() {
         .flag("-fno-stack-protector")
         .file("src/c/dlmalloc.c")
         .file("src/c/fcntl.c")
+        .file("src/c/stack_chk.c")
         .file("src/c/stdio.c")
+        .file("src/c/unistd.c")
         .compile("relibc_c");
 
     println!("cargo:rustc-link-lib=static=relibc_c");
diff --git a/src/c/stack_chk.c b/src/c/stack_chk.c
new file mode 100644
index 0000000000..8574090818
--- /dev/null
+++ b/src/c/stack_chk.c
@@ -0,0 +1,10 @@
+#include <stdint.h>
+
+void abort();
+
+uintptr_t __stack_chk_guard = 0xd048c37519fcadfe;
+
+__attribute__((noreturn))
+void __stack_chk_fail(void) {
+	abort();
+}