From ed35243644ba185a1249a28c958718cb087d78d0 Mon Sep 17 00:00:00 2001
From: Andrey Zgarbul <zgarbul.andrey@gmail.com>
Date: Wed, 11 Dec 2024 23:34:03 +0300
Subject: [PATCH] unsafe no-mangle

---
 .github/workflows/ci.yml  | 20 ++++++++++++++++----
 CHANGELOG.md              |  2 ++
 README.md                 |  4 ++--
 src/generate/device.rs    |  8 +++++---
 src/generate/interrupt.rs | 10 +++++-----
 5 files changed, 30 insertions(+), 14 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bfde64b9..97ac1e76 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -83,17 +83,29 @@ jobs:
           - { rust: stable, vendor: Spansion, options: "--atomics" }
           - { rust: stable, vendor: STMicro, options: "" }
           - { rust: stable, vendor: STMicro, options: "--atomics" }
-          - { rust: stable, vendor: STM32-patched, options: "--strict -f enum_value::p: --max-cluster-size --atomics --atomics-feature atomics --impl-debug --impl-defmt defmt" }
+          - {
+              rust: stable,
+              vendor: STM32-patched,
+              options: "--strict -f enum_value::p: --max-cluster-size --atomics --atomics-feature atomics --impl-debug --impl-defmt defmt",
+            }
           - { rust: stable, vendor: Toshiba, options: all }
           - { rust: stable, vendor: Toshiba, options: "" }
           # Test MSRV
-          - { rust: 1.76.0, vendor: Nordic, options: "" }
+          - { rust: 1.82.0, vendor: Nordic, options: "" }
           # Use nightly for architectures which don't support stable
           - { rust: nightly, vendor: MSP430, options: "--atomics" }
           - { rust: nightly, vendor: MSP430, options: "" }
           # Workaround for _1token0
-          - { rust: nightly-2024-09-25, vendor: Espressif, options: "--atomics --ident-formats-theme legacy" }
-          - { rust: nightly-2024-09-25, vendor: Espressif, options: "--ident-format register:::Reg" }
+          - {
+              rust: nightly-2024-09-25,
+              vendor: Espressif,
+              options: "--atomics --ident-formats-theme legacy",
+            }
+          - {
+              rust: nightly-2024-09-25,
+              vendor: Espressif,
+              options: "--ident-format register:::Reg",
+            }
 
     steps:
       - uses: actions/checkout@v4
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1eb5bc5c..1096dcbc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+- Bump MSRV of generated code to 1.82
+
 ## [v0.35.0] - 2024-11-12
 
 - Add `crate_path` setting
diff --git a/README.md b/README.md
index d0bf6fb5..25203809 100644
--- a/README.md
+++ b/README.md
@@ -17,9 +17,9 @@ This project is developed and maintained by the [Tools team][team].
 
 ## Minimum Supported Rust Version (MSRV)
 
-The **generated code** is guaranteed to compile on stable Rust 1.76.0 and up.
+The **generated code** is guaranteed to compile on stable Rust 1.82.0 and up.
 
-If you encounter compilation errors on any stable version newer than 1.76.0, please open an issue.
+If you encounter compilation errors on any stable version newer than 1.82.0, please open an issue.
 
 # Testing Locally
 
diff --git a/src/generate/device.rs b/src/generate/device.rs
index d2b3ee9c..bd837a7e 100644
--- a/src/generate/device.rs
+++ b/src/generate/device.rs
@@ -273,7 +273,7 @@ pub fn render(d: &Device, config: &Config, device_x: &mut String) -> Result<Toke
                     #feature_attribute
                     pub #p_singleton: #p_ty,
                 });
-                exprs.extend(quote!(#feature_attribute #p_singleton: #p_ty::steal(),));
+                exprs.extend(quote!(#feature_attribute #p_singleton: unsafe { #p_ty::steal() },));
             }
             Peripheral::Array(p, dim_element) => {
                 for p_name in names(p, dim_element) {
@@ -288,7 +288,9 @@ pub fn render(d: &Device, config: &Config, device_x: &mut String) -> Result<Toke
                         #feature_attribute
                         pub #p_singleton: #p_ty,
                     });
-                    exprs.extend(quote!(#feature_attribute #p_singleton: #p_ty::steal(),));
+                    exprs.extend(
+                        quote!(#feature_attribute #p_singleton: unsafe { #p_ty::steal() },),
+                    );
                 }
             }
         }
@@ -298,7 +300,7 @@ pub fn render(d: &Device, config: &Config, device_x: &mut String) -> Result<Toke
         // NOTE `no_mangle` is used here to prevent linking different minor versions of the device
         // crate as that would let you `take` the device peripherals more than once (one per minor
         // version)
-        #[no_mangle]
+        #[unsafe(no_mangle)]
         static mut DEVICE_PERIPHERALS: bool = false;
 
         /// All the peripherals.
diff --git a/src/generate/interrupt.rs b/src/generate/interrupt.rs
index 498bdece..21b363f0 100644
--- a/src/generate/interrupt.rs
+++ b/src/generate/interrupt.rs
@@ -144,7 +144,7 @@ pub fn render(
                 #[cfg(feature = "rt")]
                 #[doc(hidden)]
                 #link_section_attr
-                #[no_mangle]
+                #[unsafe(no_mangle)]
                 pub static __INTERRUPTS: [Vector; #n] = [
                     #elements
                 ];
@@ -179,7 +179,7 @@ pub fn render(
                 #[cfg(feature = "rt")]
                 #[doc(hidden)]
                 #link_section_attr
-                #[no_mangle]
+                #[unsafe(no_mangle)]
                 #[used]
                 pub static __INTERRUPTS:
                     [Vector; #n] = [
@@ -214,7 +214,7 @@ pub fn render(
                 #[cfg(feature = "rt")]
                 #[doc(hidden)]
                 #link_section_attr
-                #[no_mangle]
+                #[unsafe(no_mangle)]
                 pub static __EXTERNAL_INTERRUPTS: [Vector; #n] = [
                     #elements
                 ];
@@ -414,7 +414,7 @@ pub fn render(
                         }
 
                         #[allow(non_snake_case)]
-                        #[no_mangle]
+                        #[unsafe(no_mangle)]
                         pub extern #abi fn $NAME() {
                             // check that the handler exists
                             let _ = $crate::interrupt::Interrupt::$NAME;
@@ -433,7 +433,7 @@ pub fn render(
                     };
                     ($NAME:ident, $path:path) => {
                         #[allow(non_snake_case)]
-                        #[no_mangle]
+                        #[unsafe(no_mangle)]
                         pub extern #abi fn $NAME() {
                             // check that the handler exists
                             let _ = $crate::interrupt::Interrupt::$NAME;