Enable AoT and wamr-sdk, and change arguments of call wasm API (#157)

* Implement memory profiler, optimize memory usage, modify code indent

* Implement memory.grow and limit heap space base offset to 1G; modify iwasm build type to Release and 64 bit by default

* Add a new extension library: connection

* Fix bug of reading magic number and version in big endian platform

* Re-org platform APIs: move most platform APIs from iwasm to shared-lib

* Enhance wasm loader to fix some security issues

* Fix issue about illegal load of EXC_RETURN into PC on stm32 board

* Updates that let a restricted version of the interpreter run in SGX

* Enable native/app address validation and conversion for wasm app

* Remove wasm_application_exectue_* APIs from wasm_export.h which makes confused

* Refine binary size and fix several minor issues

Optimize interpreter LOAD/STORE opcodes to decrease the binary size
Fix issues when using iwasm library: _bh_log undefined, bh_memory.h not found
Remove unused _stdin/_stdout/_stderr global variables resolve in libc wrapper
Add macros of global heap size, stack size, heap size for Zephyr main.c
Clear compile warning of wasm_application.c

* Add more strict security checks for libc wrapper API's

* Use one libc wrapper copy for sgx and other platforms; remove bh_printf macro for other platform header files

* Enhance security of libc strcpy/sprintf wrapper function

* Fix issue of call native for x86_64/arm/mips, add module inst parameter for native wrapper functions

* Remove get_module_inst() and fix issue of call native

* Refine wgl lib: remove module_inst parameter from widget functions; move function index check to runtime instantiate

* Refine interpreter call native process, refine memory boudary check

* Fix issues of invokeNative function of arm/mips/general version

* Add a switch to build simple sample without gui support

* Add BUILD_TARGET setting in makefile to replace cpu compiler flags in source code

* Re-org shared lib header files, remove unused info; fix compile issues of vxworks

* Add build target general

* Remove unused files

* Update license header

* test push

* Restore file

* Sync up with internal/feature

* Sync up with internal/feature

* Rename build_wamr_app to build_wasm_app

* Fix small issues of README

* Enhance malformed wasm file checking
Fix issue of print hex int and implement utf8 string check
Fix wasi file read/write right issue
Fix minor issue of build wasm app doc

* Sync up with internal/feature

* Sync up with internal/feature: fix interpreter arm issue, fix read leb issue

* Sync up with internal/feature

* Fix bug of config.h and rename wasi config.h to ssp_config.h

* Sync up with internal/feature

* Import wamr aot

* update document

* update document

* Update document, disable WASI in 32bit

* update document

* remove files

* update document

* Update document

* update document

* update document

* update samples

* Sync up with internal repo

core/iwasm/common/arch/invokeNative_mips.s

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+ */
+
+    .text
+    .align 2
+    .globl invokeNative
+    .ent invokeNative
+    .type invokeNative, @function
+
+/**
+ * On function entry parameters:
+ * $4 = func_ptr
+ * $5 = args
+ * $6 = arg_num
+ */
+
+invokeNative:
+    .frame $fp, 8, $0
+    .mask 0x00000000, 0
+    .fmask 0x00000000, 0
+
+    /* Fixed part of frame */
+    subu $sp, 8
+
+    /* save registers */
+    sw $31, 4($sp)
+    sw $fp, 0($sp)
+
+    /* set frame pointer to bottom of fixed frame */
+    move $fp, $sp
+
+    /* allocate enough stack space */
+    sll $11, $6, 2  /* $11 == arg_num * 4 */
+    subu $sp, $11
+
+    /* make 8-byte aligned */
+    and $sp, ~7
+
+    move $9, $sp
+    move $25, $4    /* $25 = func_ptr */
+
+push_args:
+    beq $6, 0, done /* arg_num == 0 ? */
+    lw $8, 0($5)    /* $8 = *args */
+    sw $8, 0($9)    /* store $8 to stack */
+    addu $5, 4      /* args++ */
+    addu $9, 4      /* sp++ */
+    subu $6, 1      /* arg_num-- */
+    j push_args
+
+done:
+    lw $4, 0($sp)   /* Load $4..$7 from stack */
+    lw $5, 4($sp)
+    lw $6, 8($sp)
+    lw $7, 12($sp)
+    ldc1 $f12, 0($sp) /* Load $f12, $f13, $f14, $f15 */
+    ldc1 $f14, 8($sp)
+
+    jalr $25       /* call function */
+
+    nop
+
+    /* restore saved registers */
+    move $sp, $fp
+    lw $31, 4($sp)
+    lw $fp, 0($sp)
+
+    /* pop frame */
+    addu $sp, $sp, 8
+
+    j $31
+    .end invokeNative