Feature/hardware

.github/workflows/pre-merge.yml

@@ -43,7 +43,7 @@ jobs:
   #     - name: Install Rust toolchain
   #       uses: dtolnay/rust-toolchain@stable
   #       with:
-  #         toolchain: nightly
+  #         toolchain: nightly-2026-04-27
   #         components: rustfmt, clippy, rust-src
   #
   #     - name: Install RISC-V target
@@ -87,10 +87,11 @@ jobs:
           repository: light-player/lp-regalloc2
           path: lp-regalloc2
 
+      # Toolchain is pinned in lp2025/rust-toolchain.toml; keep this in sync.
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: nightly
+          toolchain: nightly-2026-04-27
           components: rustfmt, clippy, rust-src
 
       - name: Install RISC-V target

AGENTS.md

@@ -137,6 +137,31 @@ just build-rv32         # cargo build --target riscv32imac-... -p ...
 just build              # parallel: host + rv32
 ```
 
+### ESP32 linked-build pitfall
+
+For `fw-esp32`, **linked firmware builds, size measurements, and bloat
+analysis must run from `lp-fw/fw-esp32/`** (or through a just recipe that
+`cd`s there first, such as `just build-fw-esp32`). The crate-local
+`.cargo/config.toml` and linker setup are part of the build.
+
+This is fine from the workspace root because it does not final-link:
+
+```bash
+cargo check -p fw-esp32 --target riscv32imac-unknown-none-elf --profile release-esp32 --features esp32c6,server
+```
+
+For a real linked ELF or size numbers, do this instead:
+
+```bash
+cd lp-fw/fw-esp32
+cargo build --target riscv32imac-unknown-none-elf --profile release-esp32 --features esp32c6,server
+rust-size ../../target/riscv32imac-unknown-none-elf/release-esp32/fw-esp32
+```
+
+Running `cargo build -p fw-esp32 ...` from the workspace root can fail at final
+link with `memory region not defined: ROTEXT`, because it bypasses the
+crate-local firmware build context.
+
 For targeted host validation of specific crates:
 
 ```bash

Cargo.toml

@@ -2,10 +2,12 @@
 members = [
     # lp-base workspace members
     "lp-base/lp-perf",
+    "lp-base/lp-collection",
     "lp-base/lpfs",
     # lp-app workspace members
     "lp-core/lpc-engine",
     "lp-core/lpc-view",
+    "lp-core/lpc-hardware",
     "lp-core/lpc-shared",
     "lp-app/lpa-server",
     "lp-app/lpa-client",
@@ -18,7 +20,7 @@ members = [
     "lp-core/lpc-model",
     "lp-core/lpc-slot-codegen",
     "lp-core/lpc-slot-macros",
-    "lp-core/lpc-slot-mockup",
+    "lp-core/lpc-registry",
     "lp-core/lpc-wire",
     # lps workspace members
     "lp-shader/lps-builtin-ids",
@@ -62,6 +64,7 @@ default-members = [
     # lp-app workspace members
     "lp-core/lpc-engine",
     "lp-core/lpc-view",
+    "lp-core/lpc-hardware",
     "lp-core/lpc-shared",
     "lp-app/lpa-server",
     "lp-app/lpa-client",
@@ -70,6 +73,7 @@ default-members = [
     "lp-fw/fw-tests",
     "lp-cli",
     "lp-core/lpc-model",
+    "lp-core/lpc-registry",
     "lp-core/lpc-wire",
     # lps workspace members (excluding lps-builtins-emu-app)
     "lp-shader/lps-builtin-ids",
@@ -143,7 +147,7 @@ cranelift-interpreter = { git = "https://github.com/light-player/lp-cranelift",
 
 # regalloc2 - fork (ChunkedVec for OOM mitigation, feature-gating ION allocator)
 regalloc2 = { git = "https://github.com/light-player/lp-regalloc2", branch = "lightplayer", default-features = false, features = ["std"] }
-lp-collection = { git = "https://github.com/light-player/lp-common", branch = "main", default-features = false }
+lp-collection = { path = "lp-base/lp-collection", default-features = false }
 
 # Common dependencies