new option 'use-newlib-nano', 'not-use-syscalls'

Author: github0null

lang/arm.gcc.verify.json

@@ -144,6 +144,14 @@
                         "dwarf-3"
                     ]
                 },
+                "use-newlib-nano": {
+                    "markdownDescription": "Use newlib-nano (--specs=nano.specs)",
+                    "type": "boolean"
+                },
+                "not-use-syscalls": {
+                    "markdownDescription": "Do not use syscalls (--specs=nosys.specs)",
+                    "type": "boolean"
+                },
                 "misc-control": {
                     "markdownDescription": "Other Global Options",
                     "description.zh-cn": "编译器附加选项（全局）",

res/data/models/arm.gcc.model.json

@@ -299,6 +299,32 @@
                 "cpp"
             ]
         },
+        "use-newlib-nano": {
+            "type": "selectable",
+            "command": {
+                "true": "--specs=nano.specs",
+                "false": ""
+            },
+            "group": [
+                "c",
+                "cpp",
+                "asm",
+                "linker"
+            ]
+        },
+        "not-use-syscalls": {
+            "type": "selectable",
+            "command": {
+                "true": "--specs=nosys.specs",
+                "false": ""
+            },
+            "group": [
+                "c",
+                "cpp",
+                "asm",
+                "linker"
+            ]
+        },
         "misc-control": {
             "type": "list",
             "command": "",

src/ToolchainManager.ts

@@ -2400,7 +2400,9 @@ class GCC implements IToolchian {
             global: {
                 "$float-abi-type": 'hard',
                 "output-debug-info": 'enable',
-                "misc-control": "--specs=nosys.specs --specs=nano.specs"
+                "use-newlib-nano": true,
+                "not-use-syscalls": true,
+                "misc-control": ""
             },
             'c/cpp-compiler': {
                 "language-c": "c11",