rust-teeny-nostd: compare with asm

rust-teeny-nostd/justfile

@@ -2,6 +2,10 @@ alias b := build
 alias s := stat
 alias z := stat-size
 
+alias basm := build-asm
+alias sasm := stat-asm
+alias zasm := stat-size-asm
+
 target := "x86_64-unknown-linux-gnu"
 
 build:
@@ -16,7 +20,7 @@ build:
         -Cpanic=immediate-abort --remap-path-prefix=$PWD=[src] \
     " cargo \
         \
-        -Zbuild-std=core,alloc,std,panic_abort \
+        -Zbuild-std=core,panic_abort \
         -Zbuild-std-features="optimize_for_size" \
         \
         b -r --target {{ target }}
@@ -32,8 +36,18 @@ build:
 
     # Not sure why .gnu.version and .gnu.hash don't break if I remove them in my machine, but that's very relative and its related to dynamic loading, but they could reduce size by `0.2 KiB`
 
+build-asm:
+    clang -Wl,--gc-sections -Wl,--as-needed -Wl,--strip-all -Wl,--build-id=none -s -fuse-ld=lld -Oz same.S -o target/asm
+    strip --strip-all --strip-unneeded -R .comment -R .note.\* -R .eh_frame\* target/asm
+
 stat:
     stat target/{{ target }}/release/rust-teeny
 
+stat-asm:
+    stat target/asm
+
 stat-size:
     stat target/{{ target }}/release/rust-teeny -c "%s" | numfmt --to=iec-i
+
+stat-size-asm:
+    stat target/asm -c "%s" | numfmt --to=iec-i