3 files changed, 37 insertions, 0 deletions
diff --git a/src/third_party/mozjs-60/extract.sh b/src/third_party/mozjs-60/extract.sh
index 4ae30ee6a78..be5604ff9b1 100755
--- a/src/third_party/mozjs-60/extract.sh
+++ b/src/third_party/mozjs-60/extract.sh
@@ -220,3 +220,4 @@ patch -p4 < patches/big-endian-fixes.patch
 patch -p4 < patches/windows-Time.cpp-GetModuleHandle.patch
 patch -p4 < patches/JSGCConfig.patch
 patch -p4 < patches/struct-hasher.patch
+patch -p4 < patches/moz-bug-1442583.patch
diff --git a/src/third_party/mozjs-60/extract/js/src/jit/ProcessExecutableMemory.cpp b/src/third_party/mozjs-60/extract/js/src/jit/ProcessExecutableMemory.cpp
index e763a9d68dc..8a6d50b6a78 100644
--- a/src/third_party/mozjs-60/extract/js/src/jit/ProcessExecutableMemory.cpp
+++ b/src/third_party/mozjs-60/extract/js/src/jit/ProcessExecutableMemory.cpp
@@ -20,6 +20,9 @@
 #include "jsutil.h"
 
 #include "gc/Memory.h"
+#ifdef JS_CODEGEN_ARM64
+# include "jit/arm64/vixl/Cpu-vixl.h"
+#endif
 #include "threading/LockGuard.h"
 #include "threading/Mutex.h"
 #include "util/Windows.h"
@@ -621,6 +624,10 @@ js::jit::DeallocateExecutableMemory(void* addr, size_t bytes)
 bool
 js::jit::InitProcessExecutableMemory()
 {
+#ifdef JS_CODEGEN_ARM64
+    // Initialize instruction cache flushing.
+    vixl::CPU::SetUp();
+#endif
     return execMemory.init();
 }
 
diff --git a/src/third_party/mozjs-60/patches/moz-bug-1442583.patch b/src/third_party/mozjs-60/patches/moz-bug-1442583.patch
new file mode 100644
index 00000000000..93852c0b29a
--- /dev/null
+++ b/src/third_party/mozjs-60/patches/moz-bug-1442583.patch
@@ -0,0 +1,29 @@
+# Fix https://jira.mongodb.org/browse/SERVER-54684 by applying upstream changes from ESR 69 
+# - https://bugzilla.mozilla.org/show_bug.cgi?id=1442583
+# - https://github.com/mozilla/gecko-dev/commit/7371a080accd8dfcaf0d24072b787e143846973a
+
+diff --git a/src/third_party/mozjs-60/extract/js/src/jit/ProcessExecutableMemory.cpp b/src/third_party/mozjs-60/extract/js/src/jit/ProcessExecutableMemory.cpp
+index e763a9d68d..8a6d50b6a7 100644
+--- a/src/third_party/mozjs-60/extract/js/src/jit/ProcessExecutableMemory.cpp
++++ b/src/third_party/mozjs-60/extract/js/src/jit/ProcessExecutableMemory.cpp
+@@ -20,6 +20,9 @@
+ #include "jsutil.h"
+ 
+ #include "gc/Memory.h"
++#ifdef JS_CODEGEN_ARM64
++# include "jit/arm64/vixl/Cpu-vixl.h"
++#endif
+ #include "threading/LockGuard.h"
+ #include "threading/Mutex.h"
+ #include "util/Windows.h"
+@@ -621,6 +624,10 @@ js::jit::DeallocateExecutableMemory(void* addr, size_t bytes)
+ bool
+ js::jit::InitProcessExecutableMemory()
+ {
++#ifdef JS_CODEGEN_ARM64
++    // Initialize instruction cache flushing.
++    vixl::CPU::SetUp();
++#endif
+     return execMemory.init();
+ }
+