some just commands don't work, and missing all the pretty emoji

Author: berkus

Justfile

@@ -18,7 +18,7 @@ fixed_rustflags := '-D warnings -Z macro-backtrace'
 
 qemu            := env('QEMU', 'qemu-system-aarch64')
 qemu_machine    := env('QEMU_MACHINE', 'raspi3b')
-gdb             := env('GDB', 'aarch64-elf-gdb')
+gdb             := env('GDB', 'aarch64-elf-gdb') # An aarch64-enabled GDB (brew install aarch64-elf-gdb)
 objcopy         := 'rust-objcopy'
 nm              := 'rust-nm'
 volume          := env('VOLUME', '/Volumes/BOOT')
@@ -42,6 +42,9 @@ gdb_connect     := justfile_directory() / 'target' / target / 'gdb-connect'
 
 openocd_bin     := env('OPENOCD', '/usr/local/opt/openocd/4d6519593-rtt/bin/openocd')
 
+ok_label        := '✅'
+copy_label      := '🔄'
+
 _default:
     @just --list
 
@@ -58,11 +61,12 @@ _cross-build crate board='rpi4' linker_script='' features='':
 
 # === Kernel (nucleus + init_thread -> kernel.bin) ===
 
-# Build kernel for hardware (features: '' for hw, 'qemu' for emulation)
+# Build kernel (features: '' for hw, 'qemu' for emulation)
 [group("hw")]
 build board='rpi4' features='': (_cross-build 'nucleus' board nucleus_link features) (_cross-build 'init_thread' board init_link features)
     {{ objcopy }} --strip-all -O binary {{ kernel_elf }} {{ kernel_bin }}
-    @echo "kernel built for {{ board }}{{ if features != '' { ' [' + features + ']' } else { '' } }}"
+    @# TODO: print final binary size!
+    @echo "{{ok_label}} kernel built for {{ board }}{{ if features != '' { ' [' + features + ']' } else { '' } }}"
 
 alias b := build
 
@@ -72,14 +76,14 @@ alias b := build
 [group("hw")]
 build-chainboot board='rpi4' features='': (_cross-build 'chainboot' board chainboot_link features)
     {{ objcopy }} --strip-all -O binary {{ chainboot_elf }} {{ chainboot_bin }}
-    @echo "chainboot built for {{ board }}{{ if features != '' { ' [' + features + ']' } else { '' } }}"
+    @echo "{{ok_label}} chainboot built for {{ board }}{{ if features != '' { ' [' + features + ']' } else { '' } }}"
 
 # === Chainofcommand (host tool) ===
 
 # Build chainofcommand serial loader
 [group("hw")]
 chainofcommand:
-    cargo build -p chainofcommand
+    @cargo build -p chainofcommand
 
 alias coc := chainofcommand
 
@@ -88,21 +92,33 @@ alias coc := chainofcommand
 # Build and run kernel in QEMU
 [group("emu")]
 qemu: (build 'rpi3' 'qemu')
+    @echo 🚜 Run QEMU {{ qemu_base_opts }} with {{ kernel_bin }}
+    @echo 🚜 .. on {{ rpi3_dtb }}
+    @rm -f qemu.log
     {{ qemu }} {{ qemu_base_opts }} -dtb "{{ rpi3_dtb }}" -kernel "{{ kernel_bin }}"
 
 # Build and run kernel in QEMU with GDB port
 [group("emu")]
 qemu-gdb: (build 'rpi3' 'qemu')
+    @echo 🚜 Run QEMU {{ qemu_base_opts }} {{ qemu_disasm_gdb }} with {{ kernel_bin }}
+    @echo 🚜 .. on {{ rpi3_dtb }}
+    @rm -f qemu.log
     {{ qemu }} {{ qemu_base_opts }} {{ qemu_disasm_gdb }} -dtb "{{ rpi3_dtb }}" -kernel "{{ kernel_bin }}"
 
 # Build and run chainboot in QEMU
 [group("emu")]
 cb-qemu: (build-chainboot 'rpi3' 'qemu')
+    @echo 🚜 Run QEMU {{ qemu_base_opts }} {{ qemu_disasm }} with {{ chainboot_bin }}
+    @echo 🚜 .. on {{ rpi3_dtb }}
+    @rm -f qemu.log
     {{ qemu }} {{ qemu_base_opts }} {{ qemu_disasm }} -serial pty -dtb "{{ rpi3_dtb }}" -kernel "{{ chainboot_bin }}"
 
 # Build and run chainboot in QEMU with GDB port
 [group("emu")]
 cb-qemu-gdb: (build-chainboot 'rpi3' 'qemu')
+    @echo 🚜 Run QEMU {{ qemu_base_opts }} {{ qemu_disasm_gdb }} with {{ chainboot_bin }}
+    @echo 🚜 .. on {{ rpi3_dtb }}
+    @rm -f qemu.log
     {{ qemu }} {{ qemu_base_opts }} {{ qemu_disasm_gdb }} -serial pty -dtb "{{ rpi3_dtb }}" -kernel "{{ chainboot_bin }}"
 
 # === Zellij (QEMU in split terminal) ===
@@ -145,14 +161,16 @@ _write-gdb-config:
     cat > "{{ gdb_connect }}" <<EOF
     target extended-remote :5555
     break *0x80000
-    break kernel_init
-    break kernel_main
+    break main
+    break init_thread_run
+    break cap_invoke_handler
     EOF
+    @echo 🖌️ Generated GDB config file {{ gdb_connect }}
 
 # Build and run kernel in GDB (connect to openocd or QEMU on port 5555)
 [group("debug")]
 gdb: build _write-gdb-config
-    pipx run gdbgui -g "{{ gdb }} -x {{ gdb_connect }} {{ kernel_elf }}"
+    @pipx run gdbgui -g "{{ gdb }} -x {{ gdb_connect }} {{ kernel_elf }}"
 
 # Build and run chainboot in GDB
 [group("debug")]
@@ -165,7 +183,7 @@ cb-gdb: build-chainboot _write-gdb-config
 [group("hw")]
 device: build
     cp {{ kernel_bin }} {{ volume }}/kernel8.img
-    @echo "Copied kernel to {{ volume }}/kernel8.img"
+    @echo "{{copy_label}} copied kernel to {{ volume }}/kernel8.img"
 
 # Build and write kernel to SD Card, then eject
 [group("hw")]
@@ -176,13 +194,13 @@ device-eject: device
 [group("hw")]
 cb-eject: build-chainboot
     cp {{ chainboot_bin }} {{ volume }}/chain_boot_rpi4.img
-    @echo "Copied chainboot to {{ volume }}/chain_boot_rpi4.img"
+    @echo "{{copy_label}} copied chainboot to {{ volume }}/chain_boot_rpi4.img"
     diskutil ejectAll {{ volume }}
 
 # Build and boot via chainofcommand
 [group("hw")]
 boot: build chainofcommand
-    @echo "Run: target/debug/chainofcommand {{ chainboot_serial }} {{ chainboot_baud }} --kernel target/kernel.bin"
+    target/debug/chainofcommand {{ chainboot_serial }} {{ chainboot_baud }} --kernel target/kernel.bin
 
 # === Openocd ===
 
@@ -199,7 +217,8 @@ alias ocd := openocd
 [group("emu")]
 test:
     RUSTFLAGS="{{ fixed_rustflags }} {{ board_rpi3_flags }}" \
-    cargo test {{ target_json }} --features=qemu {{ rust_std }}
+    cargo test --verbose {{ target_json }} --features=qemu {{ rust_std }}
+    # ^ coc tests should be with std...
 
 # Test runner invoked by .cargo/config.toml runner
 [private]
@@ -209,9 +228,8 @@ _test-runner binary_path:
     name=$(basename "{{ binary_path }}")
     bin="{{ justfile_directory() }}/target/${name}.bin"
     {{ objcopy }} --strip-all -O binary "{{ binary_path }}" "${bin}"
-    echo "Running test: ${name}"
-    {{ qemu }} {{ qemu_base_opts }} {{ qemu_test_opts }} \
-      -dtb "{{ rpi3_dtb }}" -kernel "${bin}"
+    @echo "🚨 Running test: ${name}"
+    {{ qemu }} {{ qemu_base_opts }} {{ qemu_test_opts }} -dtb "{{ rpi3_dtb }}" -kernel "${bin}"
 
 # === Clippy ===
 
@@ -259,7 +277,7 @@ expand:
 # Generate and open documentation
 [group("maintenance")]
 doc:
-    cargo doc --open --no-deps {{ target_json }}
+    cargo doc --open --no-deps {{ target_json }} {{ rust_std }}
 
 # Clean project
 [group("maintenance")]
@@ -336,6 +354,9 @@ orphans mod:
 # Prepare local dev tools and set-up git hooks
 [group("maintenance")]
 setup-local-dev:
-    commit-emoji --help || cargo install commit-emoji
+    which cargo-binstall || cargo install cargo-binstall
+    commit-emoji --help || cargo binstall -y commit-emoji
     commit-emoji -i
-    cp .hooks/pre-push .git/hooks/pre-push
+    cargo binstall -y cargo-binutils
+    # todo install rustfilt, what else?
+    # install pre-push git hook with `just pre-push`

libs/alloc/src/lib.rs

@@ -3,5 +3,7 @@
  * Copyright (c) Berkus Decker <berkus+vesper@metta.systems>
  */
 
+#![no_std]
+
 mod bump_allocator;
 pub use bump_allocator::BumpAllocator;