Remove the no_mangle to see if latest nightly fixes the thunking issue.

jonathanpallant · jonathanpallant · commit 488b8c0960cd · 2026-02-26T13:46:57.000Z
diff --git a/examples/mps3-an536/rust-toolchain.toml b/examples/mps3-an536/rust-toolchain.toml
@@ -1,5 +1,5 @@
 [toolchain]
-channel = "nightly-2026-01-26"
+channel = "nightly-2026-02-25"
 targets = [
 	"armv8r-none-eabihf",
 ]
diff --git a/examples/mps3-an536/src/bin/abt-exception-a32.rs b/examples/mps3-an536/src/bin/abt-exception-a32.rs
@@ -33,7 +33,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::a32)]
 extern "C" fn unaligned_from_a32() {
     core::arch::naked_asm!(
diff --git a/examples/mps3-an536/src/bin/abt-exception-t32.rs b/examples/mps3-an536/src/bin/abt-exception-t32.rs
@@ -32,7 +32,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::t32)]
 extern "C" fn unaligned_from_t32() {
     core::arch::naked_asm!(
diff --git a/examples/mps3-an536/src/bin/prefetch-exception-a32.rs b/examples/mps3-an536/src/bin/prefetch-exception-a32.rs
@@ -31,7 +31,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::a32)]
 extern "C" fn bkpt_from_a32() {
     core::arch::naked_asm!("bkpt    #0", "bx      lr",);
diff --git a/examples/mps3-an536/src/bin/prefetch-exception-t32.rs b/examples/mps3-an536/src/bin/prefetch-exception-t32.rs
@@ -31,7 +31,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::t32)]
 extern "C" fn bkpt_from_t32() {
     core::arch::naked_asm!("bkpt    #0", "bx      lr",);
diff --git a/examples/mps3-an536/src/bin/undef-exception-a32.rs b/examples/mps3-an536/src/bin/undef-exception-a32.rs
@@ -27,7 +27,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::a32)]
 extern "C" fn udf_from_a32() {
     core::arch::naked_asm!(
diff --git a/examples/mps3-an536/src/bin/undef-exception-t32.rs b/examples/mps3-an536/src/bin/undef-exception-t32.rs
@@ -27,7 +27,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::t32)]
 extern "C" fn udf_from_t32() {
     core::arch::naked_asm!(
diff --git a/examples/versatileab/rust-toolchain.toml b/examples/versatileab/rust-toolchain.toml
@@ -1,5 +1,5 @@
 [toolchain]
-channel = "nightly-2026-01-26"
+channel = "nightly-2026-02-25"
 targets = [
 	"armv7r-none-eabi",
 	"armv7r-none-eabihf",
diff --git a/examples/versatileab/src/bin/abt-exception-a32.rs b/examples/versatileab/src/bin/abt-exception-a32.rs
@@ -33,7 +33,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::a32)]
 extern "C" fn unaligned_from_a32() {
     core::arch::naked_asm!(
diff --git a/examples/versatileab/src/bin/abt-exception-t32.rs b/examples/versatileab/src/bin/abt-exception-t32.rs
@@ -33,7 +33,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::t32)]
 extern "C" fn unaligned_from_t32() {
     core::arch::naked_asm!(
diff --git a/examples/versatileab/src/bin/prefetch-exception-a32.rs b/examples/versatileab/src/bin/prefetch-exception-a32.rs
@@ -31,7 +31,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::a32)]
 extern "C" fn bkpt_from_a32() {
     core::arch::naked_asm!("bkpt    #0", "bx      lr",);
diff --git a/examples/versatileab/src/bin/prefetch-exception-t32.rs b/examples/versatileab/src/bin/prefetch-exception-t32.rs
@@ -31,7 +31,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::t32)]
 extern "C" fn bkpt_from_t32() {
     core::arch::naked_asm!("bkpt    #0", "bx      lr",);
diff --git a/examples/versatileab/src/bin/undef-exception-a32.rs b/examples/versatileab/src/bin/undef-exception-a32.rs
@@ -27,7 +27,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::a32)]
 extern "C" fn udf_from_a32() {
     core::arch::naked_asm!(
diff --git a/examples/versatileab/src/bin/undef-exception-t32.rs b/examples/versatileab/src/bin/undef-exception-t32.rs
@@ -27,7 +27,6 @@ fn main() -> ! {
 }
 
 #[unsafe(naked)]
-#[unsafe(no_mangle)]
 #[instruction_set(arm::t32)]
 extern "C" fn udf_from_t32() {
     core::arch::naked_asm!(

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,5 @@`
`1`	`1`	`[toolchain]`
`2`		`-channel = "nightly-2026-01-26"`
	`2`	`+channel = "nightly-2026-02-25"`
`3`	`3`	`targets = [`
`4`	`4`	`"armv8r-none-eabihf",`
`5`	`5`	`]`
Original file line number	Diff line number	Diff line change
`@@ -33,7 +33,6 @@ fn main() -> ! {`
`33`	`33`	`}`
`34`	`34`
`35`	`35`	`#[unsafe(naked)]`
`36`		`-#[unsafe(no_mangle)]`
`37`	`36`	`#[instruction_set(arm::a32)]`
`38`	`37`	`extern "C" fn unaligned_from_a32() {`
`39`	`38`	`core::arch::naked_asm!(`
Original file line number	Diff line number	Diff line change
`@@ -32,7 +32,6 @@ fn main() -> ! {`
`32`	`32`	`}`
`33`	`33`
`34`	`34`	`#[unsafe(naked)]`
`35`		`-#[unsafe(no_mangle)]`
`36`	`35`	`#[instruction_set(arm::t32)]`
`37`	`36`	`extern "C" fn unaligned_from_t32() {`
`38`	`37`	`core::arch::naked_asm!(`
Original file line number	Diff line number	Diff line change
`@@ -31,7 +31,6 @@ fn main() -> ! {`
`31`	`31`	`}`
`32`	`32`
`33`	`33`	`#[unsafe(naked)]`
`34`		`-#[unsafe(no_mangle)]`
`35`	`34`	`#[instruction_set(arm::a32)]`
`36`	`35`	`extern "C" fn bkpt_from_a32() {`
`37`	`36`	`core::arch::naked_asm!("bkpt #0", "bx lr",);`
Original file line number	Diff line number	Diff line change
`@@ -27,7 +27,6 @@ fn main() -> ! {`
`27`	`27`	`}`
`28`	`28`
`29`	`29`	`#[unsafe(naked)]`
`30`		`-#[unsafe(no_mangle)]`
`31`	`30`	`#[instruction_set(arm::a32)]`
`32`	`31`	`extern "C" fn udf_from_a32() {`
`33`	`32`	`core::arch::naked_asm!(`