-
Notifications
You must be signed in to change notification settings - Fork 12.6k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
This commit enables the Armv8-M Mainline architecture profile. It adds two targets: - thumbv8m.main-none-eabi - thumbv8m.main-none-eabihf The second one uses the Floating Point Unit for floating point operations. It mainly targets the Cortex-M33 processor, which can have the optional Floating Point Unit extension.
- Loading branch information
Showing
4 changed files
with
77 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,34 @@ | ||
// Copyright 2018 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
|
||
// Targets the Cortex-M33 processor (Armv8-M Mainline architecture profile), | ||
// without the Floating Point extension. | ||
|
||
use spec::{LinkerFlavor, LldFlavor, Target, TargetOptions, TargetResult}; | ||
|
||
pub fn target() -> TargetResult { | ||
Ok(Target { | ||
llvm_target: "thumbv8m.main-none-eabi".to_string(), | ||
target_endian: "little".to_string(), | ||
target_pointer_width: "32".to_string(), | ||
target_c_int_width: "32".to_string(), | ||
data_layout: "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64".to_string(), | ||
arch: "arm".to_string(), | ||
target_os: "none".to_string(), | ||
target_env: String::new(), | ||
target_vendor: String::new(), | ||
linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), | ||
|
||
options: TargetOptions { | ||
max_atomic_width: Some(32), | ||
.. super::thumb_base::opts() | ||
}, | ||
}) | ||
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,40 @@ | ||
// Copyright 2018 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
|
||
// Targets the Cortex-M33 processor (Armv8-M Mainline architecture profile), | ||
// with the Floating Point extension. | ||
|
||
use spec::{LinkerFlavor, LldFlavor, Target, TargetOptions, TargetResult}; | ||
|
||
pub fn target() -> TargetResult { | ||
Ok(Target { | ||
llvm_target: "thumbv8m.main-none-eabihf".to_string(), | ||
target_endian: "little".to_string(), | ||
target_pointer_width: "32".to_string(), | ||
target_c_int_width: "32".to_string(), | ||
data_layout: "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64".to_string(), | ||
arch: "arm".to_string(), | ||
target_os: "none".to_string(), | ||
target_env: String::new(), | ||
target_vendor: String::new(), | ||
linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), | ||
|
||
options: TargetOptions { | ||
// If the Floating Point extension is implemented in the Cortex-M33 | ||
// processor, the Cortex-M33 Technical Reference Manual states that | ||
// the FPU uses the FPv5 architecture, single-precision instructions | ||
// and 16 D registers. | ||
// These parameters map to the following LLVM features. | ||
features: "+fp-armv8,+fp-only-sp,+d16".to_string(), | ||
max_atomic_width: Some(32), | ||
.. super::thumb_base::opts() | ||
}, | ||
}) | ||
} |