diff --git a/avr-specs/avr-atmega1280.json b/avr-specs/avr-atmega1280.json
index 5fbc931f40..1791c43f48 100644
--- a/avr-specs/avr-atmega1280.json
+++ b/avr-specs/avr-atmega1280.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega1280",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega1280"
+    "gnu-cc": [
+      "-mmcu=atmega1280",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega1280",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-atmega1284p.json b/avr-specs/avr-atmega1284p.json
index ee14275f29..38c916259f 100644
--- a/avr-specs/avr-atmega1284p.json
+++ b/avr-specs/avr-atmega1284p.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega1284p",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega1284p"
+    "gnu-cc": [
+      "-mmcu=atmega1284p",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega1284p",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-atmega128a.json b/avr-specs/avr-atmega128a.json
index 50a57bb539..2707faba03 100644
--- a/avr-specs/avr-atmega128a.json
+++ b/avr-specs/avr-atmega128a.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega128a",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega128a"
+    "gnu-cc": [
+      "-mmcu=atmega128a",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega128a",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-atmega164pa.json b/avr-specs/avr-atmega164pa.json
index a9b2da9c09..256a2222e6 100644
--- a/avr-specs/avr-atmega164pa.json
+++ b/avr-specs/avr-atmega164pa.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega164pa",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega164pa"
+    "gnu-cc": [
+      "-mmcu=atmega164pa",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega164pa",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-atmega168.json b/avr-specs/avr-atmega168.json
index baac32ae20..7fbd579a7b 100644
--- a/avr-specs/avr-atmega168.json
+++ b/avr-specs/avr-atmega168.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega168",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega168"
+    "gnu-cc": [
+      "-mmcu=atmega168",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega168",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-atmega2560.json b/avr-specs/avr-atmega2560.json
index 5d33bfe118..252b54f16a 100644
--- a/avr-specs/avr-atmega2560.json
+++ b/avr-specs/avr-atmega2560.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega2560",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega2560"
+    "gnu-cc": [
+      "-mmcu=atmega2560",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega2560",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-atmega328.json b/avr-specs/avr-atmega328.json
index d4be4aa1f0..77c64f366c 100644
--- a/avr-specs/avr-atmega328.json
+++ b/avr-specs/avr-atmega328.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega328",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega328"
+    "gnu-cc": [
+      "-mmcu=atmega328",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega328",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-atmega328p.json b/avr-specs/avr-atmega328p.json
index 7d7d82cc50..461daa7a67 100644
--- a/avr-specs/avr-atmega328p.json
+++ b/avr-specs/avr-atmega328p.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega328p",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega328p"
+    "gnu-cc": [
+      "-mmcu=atmega328p",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega328p",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-atmega32a.json b/avr-specs/avr-atmega32a.json
index 89bb33ac31..9ffda7dbdd 100644
--- a/avr-specs/avr-atmega32a.json
+++ b/avr-specs/avr-atmega32a.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega32a",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega32a"
+    "gnu-cc": [
+      "-mmcu=atmega32a",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega32a",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-atmega32u4.json b/avr-specs/avr-atmega32u4.json
index f078d2ebf5..a1632146b1 100644
--- a/avr-specs/avr-atmega32u4.json
+++ b/avr-specs/avr-atmega32u4.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega32u4",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega32u4"
+    "gnu-cc": [
+      "-mmcu=atmega32u4",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega32u4",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-atmega48p.json b/avr-specs/avr-atmega48p.json
index b13938d2eb..508677e347 100644
--- a/avr-specs/avr-atmega48p.json
+++ b/avr-specs/avr-atmega48p.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega48p",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega48p"
+    "gnu-cc": [
+      "-mmcu=atmega48p",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega48p",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-atmega8.json b/avr-specs/avr-atmega8.json
index a7be935873..b2c0c5cf08 100644
--- a/avr-specs/avr-atmega8.json
+++ b/avr-specs/avr-atmega8.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "atmega8",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=atmega8"
+    "gnu-cc": [
+      "-mmcu=atmega8",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=atmega8",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-attiny167.json b/avr-specs/avr-attiny167.json
index 962df8af71..3cbdbe47d1 100644
--- a/avr-specs/avr-attiny167.json
+++ b/avr-specs/avr-attiny167.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "attiny167",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=attiny167"
+    "gnu-cc": [
+      "-mmcu=attiny167",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=attiny167",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-attiny2313.json b/avr-specs/avr-attiny2313.json
index a5599e5362..aa8fffb4d5 100644
--- a/avr-specs/avr-attiny2313.json
+++ b/avr-specs/avr-attiny2313.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "attiny2313",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=attiny2313"
+    "gnu-cc": [
+      "-mmcu=attiny2313",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=attiny2313",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-attiny85.json b/avr-specs/avr-attiny85.json
index 9d577dabed..d5334aa5de 100644
--- a/avr-specs/avr-attiny85.json
+++ b/avr-specs/avr-attiny85.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "attiny85",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=attiny85"
+    "gnu-cc": [
+      "-mmcu=attiny85",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=attiny85",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/avr-attiny88.json b/avr-specs/avr-attiny88.json
index 5ab1e58f93..1af5e8d338 100644
--- a/avr-specs/avr-attiny88.json
+++ b/avr-specs/avr-attiny88.json
@@ -2,21 +2,37 @@
   "arch": "avr",
   "atomic-cas": false,
   "cpu": "attiny88",
+  "crt-objects-fallback": "false",
   "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
   "eh-frame-header": false,
   "exe-suffix": ".elf",
   "late-link-args": {
-    "gcc": [
+    "gnu-cc": [
+      "-lgcc"
+    ],
+    "gnu-lld-cc": [
       "-lgcc"
     ]
   },
   "linker": "avr-gcc",
+  "linker-flavor": "gnu-cc",
   "llvm-target": "avr-unknown-unknown",
   "max-atomic-width": 8,
+  "metadata": {
+    "description": null,
+    "host_tools": null,
+    "std": null,
+    "tier": null
+  },
   "no-default-libraries": false,
   "pre-link-args": {
-    "gcc": [
-      "-mmcu=attiny88"
+    "gnu-cc": [
+      "-mmcu=attiny88",
+      "-Wl,--as-needed,--print-memory-usage"
+    ],
+    "gnu-lld-cc": [
+      "-mmcu=attiny88",
+      "-Wl,--as-needed,--print-memory-usage"
     ]
   },
   "relocation-model": "static",
diff --git a/avr-specs/sync-from-upstream.py b/avr-specs/sync-from-upstream.py
index 3d04e7471f..5e51075d98 100755
--- a/avr-specs/sync-from-upstream.py
+++ b/avr-specs/sync-from-upstream.py
@@ -95,7 +95,12 @@ def main():
         spec = copy.deepcopy(upstream_spec)
         spec.update(COMMON)
         spec.update(settings)
-        spec["pre-link-args"]["gcc"][0] = f"-mmcu={settings['cpu']}"
+
+        gnu_cc_pre_link_args = spec["pre-link-args"]["gnu-cc"]
+        gnu_lld_cc_pre_link_args = spec["pre-link-args"]["gnu-lld-cc"]
+        for compiler in (gnu_cc_pre_link_args, gnu_lld_cc_pre_link_args):
+            compiler[0] = f"-mmcu={settings['cpu']}"
+            compiler.append("-Wl,--as-needed,--print-memory-usage")
 
         with open(f"avr-specs/avr-{mcu}.json", "w") as f:
             json.dump(spec, f, sort_keys=True, indent=2)