Add x86_64-fortanix-unknown-sgx target to libstd and dependencies

The files src/libstd/sys/sgx/*.rs are mostly copied/adapted from
the wasm target.

This also updates the dlmalloc submodule to the very latest version.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/libpanic_abort/lib.rs b/src/libpanic_abort/lib.rs
index 9235f8e7660..95c3514185e 100644
--- a/src/libpanic_abort/lib.rs
+++ b/src/libpanic_abort/lib.rs
@@ -66,6 +66,12 @@ pub unsafe extern fn __rust_start_panic(_payload: usize) -> u32 {
     unsafe fn abort() -> ! {
         core::intrinsics::abort();
     }
+
+    #[cfg(target_env="sgx")]
+    unsafe fn abort() -> ! {
+        extern "C" { pub fn panic_exit() -> !; }
+        panic_exit();
+    }
 }
 
 // This... is a bit of an oddity. The tl;dr; is that this is required to link