Fix unsoundness in definition of stack for spawning core1

.github/workflows/on_target_tests.yml

@@ -21,7 +21,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2024-01-30
+          toolchain: nightly-2024-11-14
           target: thumbv6m-none-eabi
       - name: Install cargo-hack
         run: |
@@ -38,7 +38,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.77
+          toolchain: 1.79
           target: thumbv6m-none-eabi
       - name: Install cargo-hack
         run: |

.github/workflows/rp2040_hal.yml

@@ -42,7 +42,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2024-01-30
+          toolchain: nightly-2024-11-14
           target: ${{ env.TARGET }}
       - name: Install cargo-hack
         run: |
@@ -61,7 +61,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.77
+          toolchain: 1.79
           target: ${{ env.TARGET }}
       - name: Install cargo-hack
         run: |

.github/workflows/rp2040_hal_examples.yml

@@ -27,7 +27,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2024-01-30
+          toolchain: nightly-2024-11-14
           target: ${{ env.TARGET }}
       - name: Install cargo-udeps
         run: |
@@ -41,7 +41,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.77
+          toolchain: 1.79
           target: ${{ env.TARGET }}
       - name: Use older version of regex
         run: cd ${PACKAGE} && cargo update -p regex --precise 1.9.3

.github/workflows/rp235x_hal_arm.yml

@@ -42,7 +42,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2024-01-30
+          toolchain: nightly-2024-11-14
           target: ${{ env.TARGET }}
       - name: Install cargo-hack
         run: |
@@ -61,7 +61,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.77
+          toolchain: 1.79
           target: ${{ env.TARGET }}
       - name: Install cargo-hack
         run: |

.github/workflows/rp235x_hal_examples_arm.yml

@@ -27,7 +27,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2024-01-30
+          toolchain: nightly-2024-11-14
           target: ${{ env.TARGET }}
       - name: Install cargo-udeps
         run: |
@@ -41,7 +41,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.77
+          toolchain: 1.79
           target: ${{ env.TARGET }}
       - name: Use older version of regex
         run: cd ${PACKAGE} && cargo update -p regex --precise 1.9.3

.github/workflows/rp235x_hal_examples_riscv.yml

@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.77
+          toolchain: 1.79
           target: ${{ env.TARGET }}
       - name: Use older version of regex
         run: cd ${PACKAGE} && cargo update -p regex --precise 1.9.3

.github/workflows/rp235x_hal_riscv.yml

@@ -42,7 +42,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2024-01-30
+          toolchain: nightly-2024-11-14
           target: ${{ env.TARGET }}
       - name: Install cargo-hack
         run: |
@@ -61,7 +61,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.77
+          toolchain: 1.79
           target: ${{ env.TARGET }}
       - name: Install cargo-hack
         run: |

.github/workflows/rp_binary_info.yml

@@ -31,7 +31,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2024-01-30
+          toolchain: nightly-2024-11-14
       - name: Install cargo-hack
         run: |
           curl -sSL https://github.com/taiki-e/cargo-hack/releases/download/v0.6.17/cargo-hack-x86_64-unknown-linux-gnu.tar.gz | tar xvzf - -C ~/.cargo/bin
@@ -47,7 +47,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.77
+          toolchain: 1.79
       - name: Install cargo-hack
         run: |
           curl -sSL https://github.com/taiki-e/cargo-hack/releases/download/v0.6.17/cargo-hack-x86_64-unknown-linux-gnu.tar.gz | tar xvzf - -C ~/.cargo/bin

.github/workflows/rp_hal_common.yml

@@ -31,7 +31,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2024-01-30
+          toolchain: nightly-2024-11-14
       - name: Install cargo-hack
         run: |
           curl -sSL https://github.com/taiki-e/cargo-hack/releases/download/v0.6.17/cargo-hack-x86_64-unknown-linux-gnu.tar.gz | tar xvzf - -C ~/.cargo/bin
@@ -47,7 +47,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.77
+          toolchain: 1.79
       - name: Install cargo-hack
         run: |
           curl -sSL https://github.com/taiki-e/cargo-hack/releases/download/v0.6.17/cargo-hack-x86_64-unknown-linux-gnu.tar.gz | tar xvzf - -C ~/.cargo/bin

rp-binary-info/Cargo.toml

@@ -6,7 +6,7 @@ authors = ["The rp-rs Developers"]
 homepage = "https://github.com/rp-rs/rp-hal"
 description = "Code and types for creating Picotool compatible Binary Info metadata"
 license = "MIT OR Apache-2.0"
-rust-version = "1.77"
+rust-version = "1.79"
 repository = "https://github.com/rp-rs/rp-hal"
 categories = ["embedded", "hardware-support", "no-std", "no-std::no-alloc"]
 keywords = ["embedded", "raspberry-pi", "rp2040", "rp2350", "picotool"]

rp-hal-common/Cargo.toml

@@ -6,7 +6,7 @@ homepage = "https://github.com/rp-rs/rp-hal"
 license = "MIT OR Apache-2.0"
 name = "rp-hal-common"
 repository = "https://github.com/rp-rs/rp-hal"
-rust-version = "1.77"
+rust-version = "1.79"
 version = "0.1.0"
 
 # DO NOT LIST ANY PAC CRATES OR ARCHITECTURE CRATES HERE

rp2040-hal-examples/Cargo.toml

@@ -8,7 +8,7 @@ keywords = ["embedded", "hal", "raspberry-pi", "rp2040", "embedded-hal"]
 license = "MIT OR Apache-2.0"
 name = "rp2040-hal-examples"
 repository = "https://github.com/rp-rs/rp-hal"
-rust-version = "1.77"
+rust-version = "1.79"
 version = "0.1.0"
 
 [dependencies]

rp2040-hal-examples/src/bin/multicore_fifo_blink.rs

@@ -53,7 +53,7 @@ const CORE1_TASK_COMPLETE: u32 = 0xEE;
 /// So instead, core1.spawn takes a [usize] which gets used for the stack.
 /// NOTE: We use the `Stack` struct here to ensure that it has 32-byte alignment, which allows
 /// the stack guard to take up the least amount of usable RAM.
-static mut CORE1_STACK: Stack<4096> = Stack::new();
+static CORE1_STACK: Stack<4096> = Stack::new();
 
 fn core1_task(sys_freq: u32) -> ! {
     let mut pac = unsafe { pac::Peripherals::steal() };
@@ -115,10 +115,7 @@ fn main() -> ! {
     let mut mc = Multicore::new(&mut pac.PSM, &mut pac.PPB, &mut sio.fifo);
     let cores = mc.cores();
     let core1 = &mut cores[1];
-    #[allow(static_mut_refs)]
-    let _test = core1.spawn(unsafe { &mut CORE1_STACK.mem }, move || {
-        core1_task(sys_freq)
-    });
+    let _test = core1.spawn(CORE1_STACK.take().unwrap(), move || core1_task(sys_freq));
 
     /// How much we adjust the LED period every cycle
     const LED_PERIOD_INCREMENT: i32 = 2;

rp2040-hal-examples/src/bin/multicore_polyblink.rs

@@ -59,7 +59,7 @@ const CORE1_DELAY: u32 = 1_000_000 / CORE1_FREQ;
 /// NOTE: We use the `Stack` struct here to ensure that it has 32-byte
 /// alignment, which allows the stack guard to take up the least amount of
 /// usable RAM.
-static mut CORE1_STACK: Stack<4096> = Stack::new();
+static CORE1_STACK: Stack<4096> = Stack::new();
 
 /// Entry point to our bare-metal application.
 ///
@@ -105,9 +105,8 @@ fn main() -> ! {
     let mut mc = Multicore::new(&mut pac.PSM, &mut pac.PPB, &mut sio.fifo);
     let cores = mc.cores();
     let core1 = &mut cores[1];
-    #[allow(static_mut_refs)]
     core1
-        .spawn(unsafe { &mut CORE1_STACK.mem }, move || {
+        .spawn(CORE1_STACK.take().unwrap(), move || {
             // Get the second core's copy of the `CorePeripherals`, which are per-core.
             // Unfortunately, `cortex-m` doesn't support this properly right now,
             // so we have to use `steal`.

rp2040-hal/CHANGELOG.md

@@ -9,16 +9,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### MSRV
 
-The Minimum-Supported Rust Version (MSRV) for the next release is 1.77
+The Minimum-Supported Rust Version (MSRV) for the next release is 1.79
 
 ### Added
 
 - Support for *binary info*, which is metadata that `picotool` can read from your binary.
 - Bump MSRV to 1.77, because *binary info* examples need C-Strings.
+- Bump MSRV to 1.79 to enable inline\_const, used for static asserts.
 
 ### Fixed
 
 - Let UART embedded\_io::Write::write return some bytes were written.
+- Fix unsoundness in definition of stack for spawning core1.
 
 ## [0.10.0] - 2024-03-10
 

rp2040-hal/Cargo.toml

@@ -8,7 +8,7 @@ keywords = ["embedded", "hal", "raspberry-pi", "rp2040", "embedded-hal"]
 license = "MIT OR Apache-2.0"
 name = "rp2040-hal"
 repository = "https://github.com/rp-rs/rp-hal"
-rust-version = "1.77"
+rust-version = "1.79"
 version = "0.10.0"
 
 [package.metadata.docs.rs]