Re-org SIMD code structure for non-x86 target (bytecodealliance#611)

 Fix compile warnings of wasm-c-api and add more checks (bytecodealli…

…ance#592)

Add checks to avoid wasm_runtime_malloc memory with size 0 (bytecodea…

…lliance#507)

In some platforms, allocating memory with size 0 may return NULL but not an empty memory block, which causes runtime load, instantiate or execute wasm/aot file failed. We add checks to try to avoid allocating memory in runtime if the size is 0. And in wasm_runtime_malloc/free, output warning if allocate memory with size 0 and free memory with NULL ptr.
Also fix some coding style issues, fix handle riscv32 ilp32d issue, and fix several wasm-c-api issues.

Signed-off-by: Wenyong Huang <wenyong.huang@intel.com>

Add the fast-interp tail call support (bytecodealliance#409)

And also fix one bug in loader for tail-call

Signed-off-by: Xiaokang Qin <xiaokang.qxk@antgroup.com>

Add two apis for wasm function call (bytecodealliance#375)

Add below two apis:

bool wasm_runtime_call_wasm_a(WASMExecEnv *exec_env,
                                                      WASMFunctionInstanceCommon *function,
                                                      uint32 num_results, wasm_val_t results[],
                                                      uint32 num_args, wasm_val_t args[])

bool wasm_runtime_call_wasm_v(WASMExecEnv *exec_env,
                                                      WASMFunctionInstanceCommon *function,
                                                      uint32 num_results, wasm_val_t results[],
                                                      uint32 num_args, ...)

Signed-off-by: Xiaokang Qin <xiaokang.qxk@antgroup.com>

Fix compile issue of zephyr (bytecodealliance#306)

wasm_export.h Function Description & SGX SDK Include path (bytecodeal…

…liance#279)

* Missing SGX SDK Include fixed

* Update shared_platform.cmake

* CMakeFile remove stdlib from untrusted part

* Added two times in function description zero as possible return value

* Update shared_platform.cmake

Co-authored-by: Joshua Heinemann <heineman@ibr.cs.tu-bs.de>
Co-authored-by: wenyongh <wenyong.huang@intel.com>

Merge branch 'master' into master

re-org ems mem allocator source codes, update prot_wamr.md (bytecodea…

…lliance#217)

Sync with internal feature (bytecodealliance#204)