Update to Cranelift 0.28.0.

Also region 2.0.0 and bindgen 0.47.1.

lib/environ/src/module.rs

@@ -8,6 +8,7 @@ use cranelift_wasm::{
     GlobalIndex, Memory, MemoryIndex, SignatureIndex, Table, TableIndex,
 };
 use indexmap::IndexMap;
+use std::boxed::Box;
 use std::string::String;
 use std::vec::Vec;
 
@@ -21,7 +22,7 @@ pub struct TableElements {
     /// The offset to add to the base.
     pub offset: usize,
     /// The values to write into the table elements.
-    pub elements: Vec<FuncIndex>,
+    pub elements: Box<[FuncIndex]>,
 }
 
 /// An entity to export.

lib/environ/src/module_environ.rs

@@ -153,7 +153,7 @@ impl<'data> cranelift_wasm::ModuleEnvironment<'data> for ModuleEnvironment<'data
             table_index,
             base,
             offset,
-            elements: elements.to_vec(),
+            elements,
         });
     }
 

lib/jit/Cargo.toml

@@ -18,7 +18,7 @@ cranelift-wasm = "0.28.0"
 cranelift-frontend = "0.28.0"
 wasmtime-environ = { path = "../environ", default-features = false }
 wasmtime-runtime = { path = "../runtime", default-features = false }
-region = "1.0.0"
+region = "2.0.0"
 failure = { version = "0.1.3", default-features = false }
 failure_derive = { version = "0.1.3", default-features = false }
 target-lexicon = { version = "0.2.0", default-features = false }

lib/runtime/Cargo.toml

@@ -16,7 +16,7 @@ cranelift-codegen = "0.28.0"
 cranelift-entity = "0.28.0"
 cranelift-wasm = "0.28.0"
 wasmtime-environ = { path = "../environ", default-features = false }
-region = "1.0.0"
+region = "2.0.0"
 lazy_static = "1.2.0"
 libc = { version = "0.2.44", default-features = false }
 errno = "0.2.4"
@@ -31,7 +31,7 @@ winapi = { version = "0.3.6", features = ["winbase", "memoryapi"] }
 
 [build-dependencies]
 cmake = "0.1.35"
-bindgen = "0.46.0"
+bindgen = "0.47.1"
 regex = "1.0.6"
 
 [features]

lib/runtime/src/memory.rs

@@ -117,7 +117,7 @@ impl LinearMemory {
             new_mmap.as_mut_slice()[..copy_len].copy_from_slice(&self.mmap.as_slice()[..copy_len]);
 
             self.mmap = new_mmap;
-        } else {
+        } else if delta_bytes > 0 {
             // Make the newly allocated pages accessible.
             self.mmap.make_accessible(prev_bytes, delta_bytes).ok()?;
         }