Description: explicitly disable split unpacked debuginfo for now on riscv64,
 it's broken and we don't want cargo to auto-enable it..
 https://github.com/llvm/llvm-project/issues/56642
 https://github.com/rust-lang/rust/issues/110224Z

Index: rust/compiler/rustc_target/src/spec/riscv64gc_unknown_freebsd.rs
===================================================================
--- rust.orig/compiler/rustc_target/src/spec/riscv64gc_unknown_freebsd.rs
+++ rust/compiler/rustc_target/src/spec/riscv64gc_unknown_freebsd.rs
@@ -1,4 +1,5 @@
-use crate::spec::{CodeModel, Target, TargetOptions};
+use crate::spec::{CodeModel, SplitDebuginfo, Target, TargetOptions};
+use std::borrow::Cow;
 
 pub fn target() -> Target {
     Target {
@@ -12,6 +13,7 @@ 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]),
             ..super::freebsd_base::opts()
         },
     }
Index: rust/compiler/rustc_target/src/spec/riscv64gc_unknown_fuchsia.rs
===================================================================
--- rust.orig/compiler/rustc_target/src/spec/riscv64gc_unknown_fuchsia.rs
+++ rust/compiler/rustc_target/src/spec/riscv64gc_unknown_fuchsia.rs
@@ -1,4 +1,5 @@
-use crate::spec::{CodeModel, SanitizerSet, Target, TargetOptions};
+use crate::spec::{CodeModel, SanitizerSet, SplitDebuginfo, Target, TargetOptions};
+use std::borrow::Cow;
 
 pub fn target() -> Target {
     Target {
@@ -13,6 +14,7 @@ pub fn target() -> Target {
             llvm_abiname: "lp64d".into(),
             max_atomic_width: Some(64),
             supported_sanitizers: SanitizerSet::SHADOWCALLSTACK,
+            supported_split_debuginfo: Cow::Borrowed(&[SplitDebuginfo::Off]),
             ..super::fuchsia_base::opts()
         },
     }
Index: rust/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_gnu.rs
===================================================================
--- rust.orig/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_gnu.rs
+++ rust/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_gnu.rs
@@ -1,4 +1,5 @@
-use crate::spec::{CodeModel, Target, TargetOptions};
+use crate::spec::{CodeModel, SplitDebuginfo, Target, TargetOptions};
+use std::borrow::Cow;
 
 pub fn target() -> Target {
     Target {
@@ -12,6 +13,7 @@ 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]),
             ..super::linux_gnu_base::opts()
         },
     }
Index: rust/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_musl.rs
===================================================================
--- rust.orig/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_musl.rs
+++ rust/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_musl.rs
@@ -1,4 +1,5 @@
-use crate::spec::{CodeModel, Target, TargetOptions};
+use crate::spec::{CodeModel, SplitDebuginfo, Target, TargetOptions};
+use std::borrow::Cow;
 
 pub fn target() -> Target {
     Target {
@@ -12,6 +13,7 @@ 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]),
             ..super::linux_musl_base::opts()
         },
     }
Index: rust/compiler/rustc_target/src/spec/riscv64gc_unknown_none_elf.rs
===================================================================
--- rust.orig/compiler/rustc_target/src/spec/riscv64gc_unknown_none_elf.rs
+++ rust/compiler/rustc_target/src/spec/riscv64gc_unknown_none_elf.rs
@@ -1,5 +1,6 @@
 use crate::spec::{Cc, CodeModel, LinkerFlavor, Lld, PanicStrategy};
-use crate::spec::{RelocModel, Target, TargetOptions};
+use crate::spec::{RelocModel, SplitDebuginfo, Target, TargetOptions};
+use std::borrow::Cow;
 
 use super::SanitizerSet;
 
@@ -23,6 +24,7 @@ pub fn target() -> Target {
             emit_debug_gdb_scripts: false,
             eh_frame_header: false,
             supported_sanitizers: SanitizerSet::KERNELADDRESS,
+            supported_split_debuginfo: Cow::Borrowed(&[SplitDebuginfo::Off]),
             ..Default::default()
         },
     }
Index: rust/compiler/rustc_target/src/spec/riscv64gc_unknown_openbsd.rs
===================================================================
--- rust.orig/compiler/rustc_target/src/spec/riscv64gc_unknown_openbsd.rs
+++ rust/compiler/rustc_target/src/spec/riscv64gc_unknown_openbsd.rs
@@ -1,4 +1,5 @@
-use crate::spec::{CodeModel, Target, TargetOptions};
+use crate::spec::{CodeModel, SplitDebuginfo, Target, TargetOptions};
+use std::borrow::Cow;
 
 pub fn target() -> Target {
     Target {
@@ -12,6 +13,7 @@ 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]),
             ..super::openbsd_base::opts()
         },
     }
Index: rust/compiler/rustc_target/src/spec/riscv64imac_unknown_none_elf.rs
===================================================================
--- rust.orig/compiler/rustc_target/src/spec/riscv64imac_unknown_none_elf.rs
+++ rust/compiler/rustc_target/src/spec/riscv64imac_unknown_none_elf.rs
@@ -1,5 +1,6 @@
 use crate::spec::{Cc, CodeModel, LinkerFlavor, Lld, PanicStrategy};
-use crate::spec::{RelocModel, SanitizerSet, Target, TargetOptions};
+use crate::spec::{RelocModel, SanitizerSet, SplitDebuginfo, Target, TargetOptions};
+use std::borrow::Cow;
 
 pub fn target() -> Target {
     Target {
@@ -20,6 +21,7 @@ pub fn target() -> Target {
             emit_debug_gdb_scripts: false,
             eh_frame_header: false,
             supported_sanitizers: SanitizerSet::KERNELADDRESS,
+            supported_split_debuginfo: Cow::Borrowed(&[SplitDebuginfo::Off]),
             ..Default::default()
         },
     }