Enable more tests on AArch64 (#2994)

Copyright (c) 2021, Arm Limited.

crates/debug/src/lib.rs

@@ -116,6 +116,7 @@ fn ensure_supported_elf_format(bytes: &[u8]) -> Result<Endianness, Error> {
     let e = header.endian().unwrap();
 
     match header.e_machine.get(e) {
+        EM_AARCH64 => (),
         EM_X86_64 => (),
         EM_S390 => (),
         machine => {

crates/runtime/src/instance/allocator/pooling.rs

@@ -1666,10 +1666,14 @@ mod test {
         );
     }
 
-    #[cfg_attr(target_arch = "aarch64", ignore)] // https://github.com/bytecodealliance/wasmtime/pull/2518#issuecomment-747280133
     #[cfg(all(unix, target_pointer_width = "64", feature = "async"))]
     #[test]
     fn test_stack_zeroed() -> Result<()> {
+        // https://github.com/bytecodealliance/wasmtime/pull/2518#issuecomment-747280133
+        if std::env::var("WASMTIME_TEST_NO_HOG_MEMORY").is_ok() {
+            return Ok(());
+        }
+
         let allocator = PoolingInstanceAllocator::new(
             PoolingAllocationStrategy::NextAvailable,
             ModuleLimits {

crates/wasmtime/src/module/serialization.rs

@@ -673,7 +673,6 @@ mod test {
         Ok(())
     }
 
-    #[cfg(target_arch = "x86_64")]
     #[test]
     fn test_isa_flags_mismatch() -> Result<()> {
         let engine = Engine::default();