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add a csky-unknown-linux-gnuabiv2 target

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This commit is contained in:
Dirreke 2023-07-13 22:19:59 +08:00 • committed by dirreke
parent 3071e0aef6
commit d16409fe22
30 changed files with 313 additions and 4 deletions
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31
compiler/rustc_target/src/abi/call/csky.rs Normal file
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@ -0,0 +1,31 @@
//see https://github.com/llvm/llvm-project/blob/main/llvm/lib/Target/CSKY/CSKYCallingConv.td
use crate::abi::call::{ArgAbi, FnAbi};
fn classify_ret<Ty>(ret: &mut ArgAbi<'_, Ty>) {
if ret.layout.is_aggregate() || ret.layout.size.bits() > 64 {
ret.make_indirect();
} else {
ret.extend_integer_width_to(32);
}
}
fn classify_arg<Ty>(arg: &mut ArgAbi<'_, Ty>) {
if arg.layout.is_aggregate() || arg.layout.size.bits() > 64 {
arg.make_indirect();
} else {
arg.extend_integer_width_to(32);
}
}
pub fn compute_abi_info<Ty>(fn_abi: &mut FnAbi<'_, Ty>) {
if !fn_abi.ret.is_ignore() {
classify_ret(&mut fn_abi.ret);
}
for arg in fn_abi.args.iter_mut() {
if arg.is_ignore() {
continue;
}
classify_arg(arg);
}
}

2
compiler/rustc_target/src/abi/call/mod.rs
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@ -9,6 +9,7 @@ mod amdgpu;
mod arm;
mod avr;
mod bpf;
mod csky;
mod hexagon;
mod loongarch;
mod m68k;
@ -712,6 +713,7 @@ impl<'a, Ty> FnAbi<'a, Ty> {
"avr" => avr::compute_abi_info(self),
"loongarch64" => loongarch::compute_abi_info(cx, self),
"m68k" => m68k::compute_abi_info(self),
"csky" => csky::compute_abi_info(self),
"mips" | "mips32r6" => mips::compute_abi_info(cx, self),
"mips64" | "mips64r6" => mips64::compute_abi_info(cx, self),
"powerpc" => powerpc::compute_abi_info(self),

142
compiler/rustc_target/src/asm/csky.rs Normal file
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@ -0,0 +1,142 @@
use super::{InlineAsmArch, InlineAsmType};
use rustc_macros::HashStable_Generic;
use rustc_span::Symbol;
use std::fmt;
def_reg_class! {
CSKY CSKYInlineAsmRegClass {
reg,
freg,
}
}
impl CSKYInlineAsmRegClass {
pub fn valid_modifiers(self, _arch: super::InlineAsmArch) -> &'static [char] {
&[]
}
pub fn suggest_class(self, _arch: InlineAsmArch, _ty: InlineAsmType) -> Option<Self> {
None
}
pub fn suggest_modifier(
self,
_arch: InlineAsmArch,
_ty: InlineAsmType,
) -> Option<(char, &'static str)> {
None
}
pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> {
None
}
pub fn supported_types(
self,
_arch: InlineAsmArch,
) -> &'static [(InlineAsmType, Option<Symbol>)] {
match self {
Self::reg => types! { _: I8, I16, I32, I64, F32, F64; },
Self::freg => types! { _: F32, F64; },
}
}
}
// The reserved registers are taken from <https://github.com/llvm/llvm-project/blob/main/llvm/lib/Target/CSKY/CSKYRegisterInfo.cpp#79>
def_regs! {
CSKY CSKYInlineAsmReg CSKYInlineAsmRegClass {
r0: reg = ["r0","a0"],
r1: reg = ["r1","a1"],
r2: reg = ["r2","a2"],
r3: reg = ["r3","a3"],
r4: reg = ["r4","l0"],
r5: reg = ["r5","l1"],
r6: reg = ["r6","l2"],
// r7: reg = ["r7","l3"],
// r8: reg = ["r8","l4"],
// r9: reg = ["r9","l5"],
// r10: reg = ["r10","l6"],
// r11: reg = ["r11","l7"],
// r12: reg = ["r12","t0"],
// r13: reg = ["r13","t1"],
// r14: reg = ["r14","sp"],
// r15: reg = ["r15","lr"],
// r16: reg = ["r16","l8"],
// r17: reg = ["r17","l9"],
// r18: reg = ["r18","t2"],
// r19: reg = ["r19","t3"],
// r20: reg = ["r20","t4"],
// r21: reg = ["r21","t5"],
// r22: reg = ["r22","t6"],
// r23: reg = ["r23","t7", "fp"],
// r24: reg = ["r24","t8", "sop"],
// r25: reg = ["r25","tp", "bsp"],
// r26: reg = ["r26"],
// r27: reg = ["r27"],
// r28: reg = ["r28","gb", "rgb", "rdb"],
// r29: reg = ["r29","tb", "rtb"],
// r30: reg = ["r30","svbr"],
// r31: reg = ["r31","tls"],
f0: freg = ["fr0","vr0"],
f1: freg = ["fr1","vr1"],
f2: freg = ["fr2","vr2"],
f3: freg = ["fr3","vr3"],
f4: freg = ["fr4","vr4"],
f5: freg = ["fr5","vr5"],
f6: freg = ["fr6","vr6"],
f7: freg = ["fr7","vr7"],
f8: freg = ["fr8","vr8"],
f9: freg = ["fr9","vr9"],
f10: freg = ["fr10","vr10"],
f11: freg = ["fr11","vr11"],
f12: freg = ["fr12","vr12"],
f13: freg = ["fr13","vr13"],
f14: freg = ["fr14","vr14"],
f15: freg = ["fr15","vr15"],
f16: freg = ["fr16","vr16"],
f17: freg = ["fr17","vr17"],
f18: freg = ["fr18","vr18"],
f19: freg = ["fr19","vr19"],
f20: freg = ["fr20","vr20"],
f21: freg = ["fr21","vr21"],
f22: freg = ["fr22","vr22"],
f23: freg = ["fr23","vr23"],
f24: freg = ["fr24","vr24"],
f25: freg = ["fr25","vr25"],
f26: freg = ["fr26","vr26"],
f27: freg = ["fr27","vr27"],
f28: freg = ["fr28","vr28"],
f29: freg = ["fr29","vr29"],
f30: freg = ["fr30","vr30"],
f31: freg = ["fr31","vr31"],
#error = ["r7", "l3"] =>
"the base pointer cannot be used as an operand for inline asm",
#error = ["r8","l4"] =>
"the frame pointer cannot be used as an operand for inline asm",
#error = ["r14","sp"] =>
"the stack pointer cannot be used as an operand for inline asm",
#error = ["r15","lr"] =>
"the link register cannot be used as an operand for inline asm",
#error = ["r31","tls"] =>
"reserver for tls",
#error = ["r28", "gb", "rgb", "rdb"] =>
"the global pointer cannot be used as an operand for inline asm",
#error = ["r9","l5", "r10","l6", "r11","l7", "r12","t0", "r13","t1"] =>
"reserved (no E2)",
#error = ["r16","l8", "r17","l9", "r18","t2", "r19","t3", "r20","t4", "r21","t5", "r22","t6", "r23","t7", "fp", "r24","t8", "sop", "r25","tp", "bsp"] =>
"reserved (no HighRegisters)",
#error = ["r26","r27","r29","tb", "rtb", "r30","svbr"] =>
"reserved by the ABI",
}
}
impl CSKYInlineAsmReg {
pub fn emit(
self,
out: &mut dyn fmt::Write,
_arch: InlineAsmArch,
_modifier: Option<char>,
) -> fmt::Result {
out.write_str(self.name())
}
}

24
compiler/rustc_target/src/asm/mod.rs
View file

@ -167,6 +167,7 @@ mod aarch64;
mod arm;
mod avr;
mod bpf;
mod csky;
mod hexagon;
mod loongarch;
mod m68k;
@ -184,6 +185,7 @@ pub use aarch64::{AArch64InlineAsmReg, AArch64InlineAsmRegClass};
pub use arm::{ArmInlineAsmReg, ArmInlineAsmRegClass};
pub use avr::{AvrInlineAsmReg, AvrInlineAsmRegClass};
pub use bpf::{BpfInlineAsmReg, BpfInlineAsmRegClass};
pub use csky::{CSKYInlineAsmReg, CSKYInlineAsmRegClass};
pub use hexagon::{HexagonInlineAsmReg, HexagonInlineAsmRegClass};
pub use loongarch::{LoongArchInlineAsmReg, LoongArchInlineAsmRegClass};
pub use m68k::{M68kInlineAsmReg, M68kInlineAsmRegClass};
@ -220,6 +222,7 @@ pub enum InlineAsmArch {
Avr,
Msp430,
M68k,
CSKY,
}
impl FromStr for InlineAsmArch {
@ -248,6 +251,7 @@ impl FromStr for InlineAsmArch {
"avr" => Ok(Self::Avr),
"msp430" => Ok(Self::Msp430),
"m68k" => Ok(Self::M68k),
"csky" => Ok(Self::CSKY),
_ => Err(()),
}
}
@ -272,6 +276,7 @@ pub enum InlineAsmReg {
Avr(AvrInlineAsmReg),
Msp430(Msp430InlineAsmReg),
M68k(M68kInlineAsmReg),
CSKY(CSKYInlineAsmReg),
// Placeholder for invalid register constraints for the current target
Err,
}
@ -292,6 +297,7 @@ impl InlineAsmReg {
Self::Avr(r) => r.name(),
Self::Msp430(r) => r.name(),
Self::M68k(r) => r.name(),
Self::CSKY(r) => r.name(),
Self::Err => "<reg>",
}
}
@ -311,6 +317,7 @@ impl InlineAsmReg {
Self::Avr(r) => InlineAsmRegClass::Avr(r.reg_class()),
Self::Msp430(r) => InlineAsmRegClass::Msp430(r.reg_class()),
Self::M68k(r) => InlineAsmRegClass::M68k(r.reg_class()),
Self::CSKY(r) => InlineAsmRegClass::CSKY(r.reg_class()),
Self::Err => InlineAsmRegClass::Err,
}
}
@ -344,6 +351,7 @@ impl InlineAsmReg {
InlineAsmArch::Avr => Self::Avr(AvrInlineAsmReg::parse(name)?),
InlineAsmArch::Msp430 => Self::Msp430(Msp430InlineAsmReg::parse(name)?),
InlineAsmArch::M68k => Self::M68k(M68kInlineAsmReg::parse(name)?),
InlineAsmArch::CSKY => Self::CSKY(CSKYInlineAsmReg::parse(name)?),
})
}
@ -371,6 +379,7 @@ impl InlineAsmReg {
Self::Avr(r) => r.validate(arch, reloc_model, target_features, target, is_clobber),
Self::Msp430(r) => r.validate(arch, reloc_model, target_features, target, is_clobber),
Self::M68k(r) => r.validate(arch, reloc_model, target_features, target, is_clobber),
Self::CSKY(r) => r.validate(arch, reloc_model, target_features, target, is_clobber),
Self::Err => unreachable!(),
}
}
@ -397,6 +406,7 @@ impl InlineAsmReg {
Self::Avr(r) => r.emit(out, arch, modifier),
Self::Msp430(r) => r.emit(out, arch, modifier),
Self::M68k(r) => r.emit(out, arch, modifier),
Self::CSKY(r) => r.emit(out, arch, modifier),
Self::Err => unreachable!("Use of InlineAsmReg::Err"),
}
}
@ -416,6 +426,7 @@ impl InlineAsmReg {
Self::Avr(r) => r.overlapping_regs(|r| cb(Self::Avr(r))),
Self::Msp430(_) => cb(self),
Self::M68k(_) => cb(self),
Self::CSKY(_) => cb(self),
Self::Err => unreachable!("Use of InlineAsmReg::Err"),
}
}
@ -440,6 +451,7 @@ pub enum InlineAsmRegClass {
Avr(AvrInlineAsmRegClass),
Msp430(Msp430InlineAsmRegClass),
M68k(M68kInlineAsmRegClass),
CSKY(CSKYInlineAsmRegClass),
// Placeholder for invalid register constraints for the current target
Err,
}
@ -463,6 +475,7 @@ impl InlineAsmRegClass {
Self::Avr(r) => r.name(),
Self::Msp430(r) => r.name(),
Self::M68k(r) => r.name(),
Self::CSKY(r) => r.name(),
Self::Err => rustc_span::symbol::sym::reg,
}
}
@ -488,6 +501,7 @@ impl InlineAsmRegClass {
Self::Avr(r) => r.suggest_class(arch, ty).map(InlineAsmRegClass::Avr),
Self::Msp430(r) => r.suggest_class(arch, ty).map(InlineAsmRegClass::Msp430),
Self::M68k(r) => r.suggest_class(arch, ty).map(InlineAsmRegClass::M68k),
Self::CSKY(r) => r.suggest_class(arch, ty).map(InlineAsmRegClass::CSKY),
Self::Err => unreachable!("Use of InlineAsmRegClass::Err"),
}
}
@ -520,6 +534,7 @@ impl InlineAsmRegClass {
Self::Avr(r) => r.suggest_modifier(arch, ty),
Self::Msp430(r) => r.suggest_modifier(arch, ty),
Self::M68k(r) => r.suggest_modifier(arch, ty),
Self::CSKY(r) => r.suggest_modifier(arch, ty),
Self::Err => unreachable!("Use of InlineAsmRegClass::Err"),
}
}
@ -548,6 +563,7 @@ impl InlineAsmRegClass {
Self::Avr(r) => r.default_modifier(arch),
Self::Msp430(r) => r.default_modifier(arch),
Self::M68k(r) => r.default_modifier(arch),
Self::CSKY(r) => r.default_modifier(arch),
Self::Err => unreachable!("Use of InlineAsmRegClass::Err"),
}
}
@ -575,6 +591,7 @@ impl InlineAsmRegClass {
Self::Avr(r) => r.supported_types(arch),
Self::Msp430(r) => r.supported_types(arch),
Self::M68k(r) => r.supported_types(arch),
Self::CSKY(r) => r.supported_types(arch),
Self::Err => unreachable!("Use of InlineAsmRegClass::Err"),
}
}
@ -607,6 +624,7 @@ impl InlineAsmRegClass {
InlineAsmArch::Avr => Self::Avr(AvrInlineAsmRegClass::parse(name)?),
InlineAsmArch::Msp430 => Self::Msp430(Msp430InlineAsmRegClass::parse(name)?),
InlineAsmArch::M68k => Self::M68k(M68kInlineAsmRegClass::parse(name)?),
InlineAsmArch::CSKY => Self::CSKY(CSKYInlineAsmRegClass::parse(name)?),
})
}
@ -630,6 +648,7 @@ impl InlineAsmRegClass {
Self::Avr(r) => r.valid_modifiers(arch),
Self::Msp430(r) => r.valid_modifiers(arch),
Self::M68k(r) => r.valid_modifiers(arch),
Self::CSKY(r) => r.valid_modifiers(arch),
Self::Err => unreachable!("Use of InlineAsmRegClass::Err"),
}
}
@ -826,6 +845,11 @@ pub fn allocatable_registers(
m68k::fill_reg_map(arch, reloc_model, target_features, target, &mut map);
map
}
InlineAsmArch::CSKY => {
let mut map = csky::regclass_map();
csky::fill_reg_map(arch, reloc_model, target_features, target, &mut map);
map
}
}
}

22
compiler/rustc_target/src/spec/csky_unknown_linux_gnuabiv2.rs Normal file
View file

@ -0,0 +1,22 @@
use crate::spec::{Target, TargetOptions};
// This target is for glibc Linux on Csky
// hardfloat.
pub fn target() -> Target {
Target {
//https://github.com/llvm/llvm-project/blob/8b76aea8d8b1b71f6220bc2845abc749f18a19b7/clang/lib/Basic/Targets/CSKY.h
llvm_target: "csky-unknown-linux".into(),
pointer_width: 32,
data_layout: "e-m:e-S32-p:32:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:32-v128:32:32-a:0:32-Fi32-n32".into(),
arch: "csky".into(),
options: TargetOptions {
abi: "abiv2".into(),
//+hard-float, +hard-float-abi, +fpuv2_sf, +fpuv2_df, +fpuv3_sf, +fpuv3_df, +vdspv2, +dspv2, +vdspv1, +3e3r1
features: "".into(),
max_atomic_width: Some(32),
// mcount: "\u{1}__gnu_mcount_nc".into(),
..super::linux_gnu_base::opts()
},
}
}

1
compiler/rustc_target/src/spec/mod.rs
View file

@ -1246,6 +1246,7 @@ supported_targets! {
("i586-unknown-linux-gnu", i586_unknown_linux_gnu),
("loongarch64-unknown-linux-gnu", loongarch64_unknown_linux_gnu),
("m68k-unknown-linux-gnu", m68k_unknown_linux_gnu),
("csky-unknown-linux-gnuabiv2", csky_unknown_linux_gnuabiv2),
("mips-unknown-linux-gnu", mips_unknown_linux_gnu),
("mips64-unknown-linux-gnuabi64", mips64_unknown_linux_gnuabi64),
("mips64el-unknown-linux-gnuabi64", mips64el_unknown_linux_gnuabi64),