Merge branch 'master' into feature/wasi-unix-special-files

CHANGELOG.md

@@ -8,6 +8,16 @@
 
 ## TODO: 17...
 
+- [#1554](https://github.com/wasmerio/wasmer/pull/1554) Update supported stable Rust version to 1.45.2.
+- [#1552](https://github.com/wasmerio/wasmer/pull/1552) Disable `sigint` handler by default.
+
+## 0.17.1 - 2020-06-24
+
+- [#1439](https://github.com/wasmerio/wasmer/pull/1439) Move `wasmer-interface-types` into its own repository
+
+## 0.17.0 - 2020-05-11
+
+- [#1401](https://github.com/wasmerio/wasmer/pull/1401) Make breaking change to `RuntimeError`: `RuntimeError` is now more explicit about its possible error values allowing for better insight into why a call into Wasm failed.
 - [#1382](https://github.com/wasmerio/wasmer/pull/1382) Refactored test infranstructure (part 2)
 - [#1380](https://github.com/wasmerio/wasmer/pull/1380) Refactored test infranstructure (part 1)
 - [#1357](https://github.com/wasmerio/wasmer/pull/1357) Refactored bin commands into separate files

lib/compiler-cranelift/src/compiler.rs

@@ -71,7 +71,12 @@ impl Compiler for CraneliftCompiler {
 
         // Generate the frametable
         #[cfg(feature = "unwind")]
-        let dwarf_frametable = {
+        let dwarf_frametable = if function_body_inputs.is_empty() {
+            // If we have no function body inputs, we don't need to
+            // construct the `FrameTable`. Constructing it, with empty
+            // FDEs will cause some issues in Linux.
+            None
+        } else {
             use std::sync::{Arc, Mutex};
             match target.triple().default_calling_convention() {
                 Ok(CallingConvention::SystemV) => {

lib/engine-jit/src/unwind/systemv.rs

@@ -81,6 +81,14 @@ impl UnwindRegistry {
                 }
             } else {
                 // On other platforms, `__register_frame` will walk the FDEs until an entry of length 0
+
+                // Registering an empty `eh_frame` (i.e. which
+                // contains empty FDEs) cause problems on Linux when
+                // deregistering it. We must avoid this
+                // scenario. Usually, this is handled upstream by the
+                // compilers.
+                debug_assert_ne!(eh_frame, &[0, 0, 0, 0], "`eh_frame` seems to contain empty FDEs");
+
                 let ptr = eh_frame.as_ptr();
                 __register_frame(ptr);
                 self.registrations.push(ptr as usize);