Rollup merge of rust-lang#120518 - kxxt:riscv-split-debug-info, r=compiler-errors

riscv only supports split_debuginfo=off for now

Disable packed/unpacked options for riscv linux/android. Other riscv targets already only have the off option.

The packed/unpacked options might be supported in the future. See upstream issue for more details:
llvm/llvm-project#56642

Fixes rust-lang#110224

Author: matthiaskrgr

compiler/rustc_target/src/spec/targets/riscv32gc_unknown_linux_gnu.rs

@@ -1,4 +1,6 @@
-use crate::spec::{base, CodeModel, Target, TargetOptions};
+use std::borrow::Cow;
+
+use crate::spec::{base, CodeModel, SplitDebuginfo, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -12,6 +14,7 @@ pub fn target() -> Target {
             features: "+m,+a,+f,+d,+c".into(),
             llvm_abiname: "ilp32d".into(),
             max_atomic_width: Some(32),
+            supported_split_debuginfo: Cow::Borrowed(&[SplitDebuginfo::Off]),
             ..base::linux_gnu::opts()
         },
     }

compiler/rustc_target/src/spec/targets/riscv32gc_unknown_linux_musl.rs

@@ -1,4 +1,6 @@
-use crate::spec::{base, CodeModel, Target, TargetOptions};
+use std::borrow::Cow;
+
+use crate::spec::{base, CodeModel, SplitDebuginfo, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -12,6 +14,7 @@ pub fn target() -> Target {
             features: "+m,+a,+f,+d,+c".into(),
             llvm_abiname: "ilp32d".into(),
             max_atomic_width: Some(32),
+            supported_split_debuginfo: Cow::Borrowed(&[SplitDebuginfo::Off]),
             ..base::linux_musl::opts()
         },
     }

compiler/rustc_target/src/spec/targets/riscv64_linux_android.rs

@@ -1,4 +1,6 @@
-use crate::spec::{base, CodeModel, SanitizerSet, Target, TargetOptions};
+use std::borrow::Cow;
+
+use crate::spec::{base, CodeModel, SanitizerSet, SplitDebuginfo, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -13,6 +15,7 @@ pub fn target() -> Target {
             llvm_abiname: "lp64d".into(),
             supported_sanitizers: SanitizerSet::ADDRESS,
             max_atomic_width: Some(64),
+            supported_split_debuginfo: Cow::Borrowed(&[SplitDebuginfo::Off]),
             ..base::android::opts()
         },
     }

compiler/rustc_target/src/spec/targets/riscv64gc_unknown_linux_gnu.rs

@@ -1,4 +1,6 @@
-use crate::spec::{base, CodeModel, Target, TargetOptions};
+use std::borrow::Cow;
+
+use crate::spec::{base, CodeModel, SplitDebuginfo, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -12,6 +14,7 @@ pub fn target() -> Target {
             features: "+m,+a,+f,+d,+c".into(),
             llvm_abiname: "lp64d".into(),
             max_atomic_width: Some(64),
+            supported_split_debuginfo: Cow::Borrowed(&[SplitDebuginfo::Off]),
             ..base::linux_gnu::opts()
         },
     }

compiler/rustc_target/src/spec/targets/riscv64gc_unknown_linux_musl.rs

@@ -1,4 +1,6 @@
-use crate::spec::{base, CodeModel, Target, TargetOptions};
+use std::borrow::Cow;
+
+use crate::spec::{base, CodeModel, SplitDebuginfo, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -12,6 +14,7 @@ pub fn target() -> Target {
             features: "+m,+a,+f,+d,+c".into(),
             llvm_abiname: "lp64d".into(),
             max_atomic_width: Some(64),
+            supported_split_debuginfo: Cow::Borrowed(&[SplitDebuginfo::Off]),
             ..base::linux_musl::opts()
         },
     }