Enable Nuttx spec test option and register aot symbols (#1687)

Enable spec test option on Nuttx platform.
Register sqrt/sqrtf in aot global symbol map and
_fixdfdi/__floatundidf in xtensa symbol map.

core/iwasm/aot/aot_reloc.h

@@ -124,6 +124,8 @@ typedef struct {
     { "memset", (void*)aot_memset },      \
     { "memmove", (void*)aot_memmove },    \
     { "memcpy", (void*)aot_memmove },     \
+    { "sqrt", (void*)aot_sqrt },          \
+    { "sqrtf", (void*)aot_sqrtf },        \
     REG_SYM(fmin),                        \
     REG_SYM(fminf),                       \
     REG_SYM(fmax),                        \

core/iwasm/aot/aot_runtime.c

@@ -1968,6 +1968,18 @@ aot_memset(void *s, int c, size_t n)
     return memset(s, c, n);
 }
 
+double
+aot_sqrt(double x)
+{
+    return sqrt(x);
+}
+
+float
+aot_sqrtf(float x)
+{
+    return sqrtf(x);
+}
+
 #if WASM_ENABLE_BULK_MEMORY != 0
 bool
 aot_memory_init(AOTModuleInstance *module_inst, uint32 seg_index, uint32 offset,

core/iwasm/aot/aot_runtime.h

@@ -451,6 +451,12 @@ aot_memmove(void *dest, const void *src, size_t n);
 void *
 aot_memset(void *s, int c, size_t n);
 
+double
+aot_sqrt(double x);
+
+float
+aot_sqrtf(float x);
+
 #if WASM_ENABLE_BULK_MEMORY != 0
 bool
 aot_memory_init(AOTModuleInstance *module_inst, uint32 seg_index, uint32 offset,

core/iwasm/aot/arch/aot_reloc_xtensa.c

@@ -41,6 +41,9 @@ void __gtdf2();
 void __umoddi3();
 void __floatdidf();
 void __divsf3();
+void __fixdfdi();
+void __floatundidf();
+
 
 static SymbolMap target_sym_map[] = {
     REG_COMMON_SYMBOLS
@@ -80,8 +83,8 @@ static SymbolMap target_sym_map[] = {
     REG_SYM(__umoddi3),
     REG_SYM(__floatdidf),
     REG_SYM(__divsf3),
-    REG_SYM(sqrt),
-    REG_SYM(sqrtf),
+    REG_SYM(__fixdfdi),
+    REG_SYM(__floatundidf),
 };
 /* clang-format on */
 

product-mini/platforms/nuttx/wamr.mk

@@ -287,6 +287,12 @@ else
 CFLAGS += -DWASM_ENABLE_GLOBAL_HEAP_POOL=0
 endif
 
+ifeq ($(CONFIG_INTERPRETERS_WAMR_ENABLE_SPEC_TEST),y)
+CFLAGS += -DWASM_ENABLE_SPEC_TEST=1
+else
+CFLAGS += -DWASM_ENABLE_SPEC_TEST=0
+endif
+
 CFLAGS += -Wno-strict-prototypes -Wno-shadow -Wno-unused-variable
 CFLAGS += -Wno-int-conversion -Wno-implicit-function-declaration