Fix build profiles

firmware/Cargo.lock

@@ -6853,6 +6853,7 @@ checksum = "a0f368519fc6c85fc1afdb769fb5a51123f6158013e143656e25a3485a0d401c"
 [[package]]
 name = "spectre-api-sys"
 version = "0.1.0"
+source = "git+https://github.com/Limeth/spectre-api-sys?rev=9e844eb056c3dfee8286ac21ec40fa689a8b8aa2#9e844eb056c3dfee8286ac21ec40fa689a8b8aa2"
 dependencies = [
  "bindgen",
  "cc",

firmware/Cargo.toml

@@ -5,3 +5,22 @@ default-members = []
 
 [workspace.dependencies]
 spectre-api-sys = { git = "https://github.com/Limeth/spectre-api-sys", rev = "9e844eb056c3dfee8286ac21ec40fa689a8b8aa2" }
+
+
+[profile.dev.package.esp-storage]
+opt-level = 3
+
+[profile.dev]
+# Rust debug is too slow.
+# For debug builds always builds with some optimization
+opt-level = "s"
+lto = 'thin'
+
+[profile.release]
+codegen-units = 1        # LLVM can perform better optimizations using a single thread
+debug = 2
+debug-assertions = false
+incremental = false
+lto = 'thin'
+opt-level = 3
+overflow-checks = false

firmware/acid-firmware/.cargo/config.toml

@@ -1,6 +1,6 @@
 [target.'cfg(all(any(target_arch = "riscv32", target_arch = "xtensa"), target_os = "none"))']
-# runner = "espflash flash --monitor"
-runner = "probe-rs run --chip esp32s3 --preverify"
+runner = "espflash flash --monitor"
+# runner = "probe-rs run --chip esp32s3 --preverify"
 
 [build]
 target = "xtensa-esp32s3-none-elf"

firmware/acid-firmware/Cargo.toml

@@ -126,25 +126,3 @@ indoc = "2.0.7"
 name = "acid-firmware"
 test = false
 bench = false
-
-[profile.release-with-debug]
-inherits = "release"
-debug = true
-
-
-[profile.dev.package.esp-storage]
-opt-level = 3
-
-[profile.dev]
-# Rust debug is too slow.
-# For debug builds always builds with some optimization
-opt-level = "s"
-
-[profile.release]
-codegen-units = 1        # LLVM can perform better optimizations using a single thread
-debug = 2
-debug-assertions = false
-incremental = false
-lto = 'thin'
-opt-level = 3
-overflow-checks = false

firmware/acid-firmware/README.md

@@ -46,6 +46,17 @@ Then compile the firmware with:
 $env:XKBCOMMON_BUILD_DIR="libxkbcommon/build-debug"; cargo build
 ```
 
+## Debugging via alternative UART pins
+
+Connect your serial debugger's TX to GPIO5 and its RX to GPIO12.
+On Linux, listen to the serial stream using:
+
+```sh
+tio -m INLCRNL /dev/ttyUSB1
+```
+
+On Windows, use PuTTY with a baudrate of 115200.
+
 ### Creating keymaps
 
 To generate an English (US) keymap, the following command may be used:

firmware/acid-firmware/src/ffi/inout/mod.rs

@@ -26,7 +26,11 @@ pub mod file;
 pub unsafe extern "C" fn __xkbc_fopen(filename: *const c_char, mode: *const c_char) -> *mut FILE {
     warn!(
         "The xkbcommon library is attempting to open a file at path: {:?}",
-        unsafe { CStr::from_ptr(filename) }
+        if filename.is_null() {
+            None
+        } else {
+            Some(unsafe { CStr::from_ptr(filename) })
+        }
     );
     null_mut()
 }