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Add no_std Xtensa targets support

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This commit is contained in:
Sergio Gasquez 2024-05-14 17:16:59 +02:00 • committed by Scott Mabin
parent e823288c35
commit 11f70d78f5
11 changed files with 138 additions and 2 deletions
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1
compiler/rustc_target/src/spec/base/mod.rs
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@ -35,3 +35,4 @@ pub(crate) mod windows_gnullvm;
pub(crate) mod windows_msvc;
pub(crate) mod windows_uwp_gnu;
pub(crate) mod windows_uwp_msvc;
pub(crate) mod xtensa;

17
compiler/rustc_target/src/spec/base/xtensa.rs Normal file
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@ -0,0 +1,17 @@
use crate::abi::Endian;
use crate::spec::{Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, TargetOptions};
pub fn opts() -> TargetOptions {
TargetOptions {
os: "none".into(),
endian: Endian::Little,
c_int_width: "32".into(),
linker_flavor: LinkerFlavor::Gnu(Cc::Yes, Lld::No),
executables: true,
panic_strategy: PanicStrategy::Abort,
relocation_model: RelocModel::Static,
emit_debug_gdb_scripts: false,
atomic_cas: false,
..Default::default()
}
}

4
compiler/rustc_target/src/spec/mod.rs
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@ -1766,6 +1766,10 @@ supported_targets! {
("nvptx64-nvidia-cuda", nvptx64_nvidia_cuda),
("xtensa-esp32-none-elf", xtensa_esp32_none_elf),
("xtensa-esp32s2-none-elf", xtensa_esp32s2_none_elf),
("xtensa-esp32s3-none-elf", xtensa_esp32s3_none_elf),
("i686-wrs-vxworks", i686_wrs_vxworks),
("x86_64-wrs-vxworks", x86_64_wrs_vxworks),
("armv7-wrs-vxworks-eabihf", armv7_wrs_vxworks_eabihf),

24
compiler/rustc_target/src/spec/targets/xtensa_esp32_none_elf.rs Normal file
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@ -0,0 +1,24 @@
use crate::spec::{base::xtensa, Target, TargetOptions};
pub fn target() -> Target {
Target {
llvm_target: "xtensa-none-elf".into(),
pointer_width: 32,
data_layout: "e-m:e-p:32:32-v1:8:8-i64:64-i128:128-n32".into(),
arch: "xtensa".into(),
metadata: crate::spec::TargetMetadata {
description: Some("Xtensa ESP32".into()),
tier: Some(3),
host_tools: Some(false),
std: Some(false),
},
options: TargetOptions {
cpu: "esp32".into(),
linker: Some("xtensa-esp32-elf-gcc".into()),
max_atomic_width: Some(32),
atomic_cas: true,
..xtensa::opts()
},
}
}

23
compiler/rustc_target/src/spec/targets/xtensa_esp32s2_none_elf.rs Normal file
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@ -0,0 +1,23 @@
use crate::spec::{base::xtensa, Target, TargetOptions};
pub fn target() -> Target {
Target {
llvm_target: "xtensa-none-elf".into(),
pointer_width: 32,
data_layout: "e-m:e-p:32:32-v1:8:8-i64:64-i128:128-n32".into(),
arch: "xtensa".into(),
metadata: crate::spec::TargetMetadata {
description: Some("Xtensa ESP32-S2".into()),
tier: Some(3),
host_tools: Some(false),
std: Some(false),
},
options: TargetOptions {
cpu: "esp32-s2".into(),
linker: Some("xtensa-esp32s2-elf-gcc".into()),
max_atomic_width: Some(32),
..xtensa::opts()
},
}
}

24
compiler/rustc_target/src/spec/targets/xtensa_esp32s3_none_elf.rs Normal file
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@ -0,0 +1,24 @@
use crate::spec::{base::xtensa, Target, TargetOptions};
pub fn target() -> Target {
Target {
llvm_target: "xtensa-none-elf".into(),
pointer_width: 32,
data_layout: "e-m:e-p:32:32-v1:8:8-i64:64-i128:128-n32".into(),
arch: "xtensa".into(),
metadata: crate::spec::TargetMetadata {
description: Some("Xtensa ESP32-S3".into()),
tier: Some(3),
host_tools: Some(false),
std: Some(false),
},
options: TargetOptions {
cpu: "esp32-s3".into(),
linker: Some("xtensa-esp32s3-elf-gcc".into()),
max_atomic_width: Some(32),
atomic_cas: true,
..xtensa::opts()
},
}
}