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-rw-r--r--compiler/rustc_target/src/spec/mod.rs3
-rw-r--r--src/test/ui/abi/unsupported.aarch64.stderr24
-rw-r--r--src/test/ui/abi/unsupported.arm.stderr58
-rw-r--r--src/test/ui/abi/unsupported.i686.stderr12
-rw-r--r--src/test/ui/abi/unsupported.rs16
-rw-r--r--src/test/ui/abi/unsupported.x64.stderr16
6 files changed, 101 insertions, 28 deletions
diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
index 911956859b8..4d0cad80764 100644
--- a/compiler/rustc_target/src/spec/mod.rs
+++ b/compiler/rustc_target/src/spec/mod.rs
@@ -1501,7 +1501,8 @@ impl Target {
             | Cdecl
             | EfiApi => true,
             X86Interrupt => ["x86", "x86_64"].contains(&&self.arch[..]),
-            Aapcs | CCmseNonSecureCall => ["arm", "aarch64"].contains(&&self.arch[..]),
+            Aapcs => "arm" == self.arch,
+            CCmseNonSecureCall => ["arm", "aarch64"].contains(&&self.arch[..]),
             Win64 | SysV64 => self.arch == "x86_64",
             PtxKernel => self.arch == "nvptx64",
             Msp430Interrupt => self.arch == "msp430",
diff --git a/src/test/ui/abi/unsupported.aarch64.stderr b/src/test/ui/abi/unsupported.aarch64.stderr
index fdeb79f93e9..225d49e05a3 100644
--- a/src/test/ui/abi/unsupported.aarch64.stderr
+++ b/src/test/ui/abi/unsupported.aarch64.stderr
@@ -1,41 +1,47 @@
 error[E0570]: `"ptx-kernel"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:24:1
+  --> $DIR/unsupported.rs:26:1
    |
 LL | extern "ptx-kernel" fn ptx() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"amdgpu-kernel"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:26:1
+  --> $DIR/unsupported.rs:28:1
    |
 LL | extern "amdgpu-kernel" fn amdgpu() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"wasm"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:28:1
+  --> $DIR/unsupported.rs:30:1
    |
 LL | extern "wasm" fn wasm() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^
 
+error[E0570]: `"aapcs"` is not a supported ABI for the current target
+  --> $DIR/unsupported.rs:32:1
+   |
+LL | extern "aapcs" fn aapcs() {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^
+
 error[E0570]: `"msp430-interrupt"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:33:1
+  --> $DIR/unsupported.rs:36:1
    |
 LL | extern "msp430-interrupt" fn msp430() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"avr-interrupt"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:35:1
+  --> $DIR/unsupported.rs:38:1
    |
 LL | extern "avr-interrupt" fn avr() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"x86-interrupt"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:37:1
+  --> $DIR/unsupported.rs:40:1
    |
 LL | extern "x86-interrupt" fn x86() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: use of calling convention not supported on this target
-  --> $DIR/unsupported.rs:39:1
+  --> $DIR/unsupported.rs:43:1
    |
 LL | extern "stdcall" fn stdcall() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -45,7 +51,7 @@ LL | extern "stdcall" fn stdcall() {}
    = note: for more information, see issue #87678 <https://github.com/rust-lang/rust/issues/87678>
 
 warning: use of calling convention not supported on this target
-  --> $DIR/unsupported.rs:44:1
+  --> $DIR/unsupported.rs:50:1
    |
 LL | extern "thiscall" fn thiscall() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -53,6 +59,6 @@ LL | extern "thiscall" fn thiscall() {}
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #87678 <https://github.com/rust-lang/rust/issues/87678>
 
-error: aborting due to 6 previous errors; 2 warnings emitted
+error: aborting due to 7 previous errors; 2 warnings emitted
 
 For more information about this error, try `rustc --explain E0570`.
diff --git a/src/test/ui/abi/unsupported.arm.stderr b/src/test/ui/abi/unsupported.arm.stderr
new file mode 100644
index 00000000000..b050ee0aa31
--- /dev/null
+++ b/src/test/ui/abi/unsupported.arm.stderr
@@ -0,0 +1,58 @@
+error[E0570]: `"ptx-kernel"` is not a supported ABI for the current target
+  --> $DIR/unsupported.rs:26:1
+   |
+LL | extern "ptx-kernel" fn ptx() {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error[E0570]: `"amdgpu-kernel"` is not a supported ABI for the current target
+  --> $DIR/unsupported.rs:28:1
+   |
+LL | extern "amdgpu-kernel" fn amdgpu() {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error[E0570]: `"wasm"` is not a supported ABI for the current target
+  --> $DIR/unsupported.rs:30:1
+   |
+LL | extern "wasm" fn wasm() {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^
+
+error[E0570]: `"msp430-interrupt"` is not a supported ABI for the current target
+  --> $DIR/unsupported.rs:36:1
+   |
+LL | extern "msp430-interrupt" fn msp430() {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error[E0570]: `"avr-interrupt"` is not a supported ABI for the current target
+  --> $DIR/unsupported.rs:38:1
+   |
+LL | extern "avr-interrupt" fn avr() {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error[E0570]: `"x86-interrupt"` is not a supported ABI for the current target
+  --> $DIR/unsupported.rs:40:1
+   |
+LL | extern "x86-interrupt" fn x86() {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+warning: use of calling convention not supported on this target
+  --> $DIR/unsupported.rs:43:1
+   |
+LL | extern "stdcall" fn stdcall() {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: `#[warn(unsupported_calling_conventions)]` on by default
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+   = note: for more information, see issue #87678 <https://github.com/rust-lang/rust/issues/87678>
+
+warning: use of calling convention not supported on this target
+  --> $DIR/unsupported.rs:50:1
+   |
+LL | extern "thiscall" fn thiscall() {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+   = note: for more information, see issue #87678 <https://github.com/rust-lang/rust/issues/87678>
+
+error: aborting due to 6 previous errors; 2 warnings emitted
+
+For more information about this error, try `rustc --explain E0570`.
diff --git a/src/test/ui/abi/unsupported.i686.stderr b/src/test/ui/abi/unsupported.i686.stderr
index 81b12653d2e..7ca93516db9 100644
--- a/src/test/ui/abi/unsupported.i686.stderr
+++ b/src/test/ui/abi/unsupported.i686.stderr
@@ -1,35 +1,35 @@
 error[E0570]: `"ptx-kernel"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:24:1
+  --> $DIR/unsupported.rs:26:1
    |
 LL | extern "ptx-kernel" fn ptx() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"amdgpu-kernel"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:26:1
+  --> $DIR/unsupported.rs:28:1
    |
 LL | extern "amdgpu-kernel" fn amdgpu() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"wasm"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:28:1
+  --> $DIR/unsupported.rs:30:1
    |
 LL | extern "wasm" fn wasm() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"aapcs"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:30:1
+  --> $DIR/unsupported.rs:32:1
    |
 LL | extern "aapcs" fn aapcs() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"msp430-interrupt"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:33:1
+  --> $DIR/unsupported.rs:36:1
    |
 LL | extern "msp430-interrupt" fn msp430() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"avr-interrupt"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:35:1
+  --> $DIR/unsupported.rs:38:1
    |
 LL | extern "avr-interrupt" fn avr() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/src/test/ui/abi/unsupported.rs b/src/test/ui/abi/unsupported.rs
index f0debdcf621..9319eac8d30 100644
--- a/src/test/ui/abi/unsupported.rs
+++ b/src/test/ui/abi/unsupported.rs
@@ -1,11 +1,13 @@
-// revisions: x64 i686 aarch64
+// revisions: x64 i686 aarch64 arm
 //
 // [x64] needs-llvm-components: x86
-// [x64]compile-flags: --target=x86_64-unknown-linux-gnu --crate-type=rlib
+// [x64] compile-flags: --target=x86_64-unknown-linux-gnu --crate-type=rlib
 // [i686] needs-llvm-components: x86
-// [i686]compile-flags: --target=i686-unknown-linux-gnu --crate-type=rlib
+// [i686] compile-flags: --target=i686-unknown-linux-gnu --crate-type=rlib
 // [aarch64] needs-llvm-components: aarch64
-// [aarch64]compile-flags: --target=aarch64-unknown-linux-gnu --crate-type=rlib
+// [aarch64] compile-flags: --target=aarch64-unknown-linux-gnu --crate-type=rlib
+// [arm] needs-llvm-components: arm
+// [arm] compile-flags: --target=armv7-unknown-linux-gnueabihf --crate-type=rlib
 #![no_core]
 #![feature(
     no_core,
@@ -30,19 +32,25 @@ extern "wasm" fn wasm() {}
 extern "aapcs" fn aapcs() {}
 //[x64]~^ ERROR is not a supported ABI
 //[i686]~^^ ERROR is not a supported ABI
+//[aarch64]~^^^ ERROR is not a supported ABI
 extern "msp430-interrupt" fn msp430() {}
 //~^ ERROR is not a supported ABI
 extern "avr-interrupt" fn avr() {}
 //~^ ERROR is not a supported ABI
 extern "x86-interrupt" fn x86() {}
 //[aarch64]~^ ERROR is not a supported ABI
+//[arm]~^^ ERROR is not a supported ABI
 extern "stdcall" fn stdcall() {}
 //[x64]~^ WARN use of calling convention not supported
 //[x64]~^^ WARN this was previously accepted
 //[aarch64]~^^^ WARN use of calling convention not supported
 //[aarch64]~^^^^ WARN this was previously accepted
+//[arm]~^^^^^ WARN use of calling convention not supported
+//[arm]~^^^^^^ WARN this was previously accepted
 extern "thiscall" fn thiscall() {}
 //[x64]~^ WARN use of calling convention not supported
 //[x64]~^^ WARN this was previously accepted
 //[aarch64]~^^^ WARN use of calling convention not supported
 //[aarch64]~^^^^ WARN this was previously accepted
+//[arm]~^^^^^ WARN use of calling convention not supported
+//[arm]~^^^^^^ WARN this was previously accepted
diff --git a/src/test/ui/abi/unsupported.x64.stderr b/src/test/ui/abi/unsupported.x64.stderr
index 60d067acf17..f2f52683324 100644
--- a/src/test/ui/abi/unsupported.x64.stderr
+++ b/src/test/ui/abi/unsupported.x64.stderr
@@ -1,41 +1,41 @@
 error[E0570]: `"ptx-kernel"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:24:1
+  --> $DIR/unsupported.rs:26:1
    |
 LL | extern "ptx-kernel" fn ptx() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"amdgpu-kernel"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:26:1
+  --> $DIR/unsupported.rs:28:1
    |
 LL | extern "amdgpu-kernel" fn amdgpu() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"wasm"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:28:1
+  --> $DIR/unsupported.rs:30:1
    |
 LL | extern "wasm" fn wasm() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"aapcs"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:30:1
+  --> $DIR/unsupported.rs:32:1
    |
 LL | extern "aapcs" fn aapcs() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"msp430-interrupt"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:33:1
+  --> $DIR/unsupported.rs:36:1
    |
 LL | extern "msp430-interrupt" fn msp430() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0570]: `"avr-interrupt"` is not a supported ABI for the current target
-  --> $DIR/unsupported.rs:35:1
+  --> $DIR/unsupported.rs:38:1
    |
 LL | extern "avr-interrupt" fn avr() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: use of calling convention not supported on this target
-  --> $DIR/unsupported.rs:39:1
+  --> $DIR/unsupported.rs:43:1
    |
 LL | extern "stdcall" fn stdcall() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -45,7 +45,7 @@ LL | extern "stdcall" fn stdcall() {}
    = note: for more information, see issue #87678 <https://github.com/rust-lang/rust/issues/87678>
 
 warning: use of calling convention not supported on this target
-  --> $DIR/unsupported.rs:44:1
+  --> $DIR/unsupported.rs:50:1
    |
 LL | extern "thiscall" fn thiscall() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
generated by cgit-pink 1.4.1-3-g733a5 (git 2.37.1) at 2026-04-23 22:17:39 +0000