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-rw-r--r--compiler/rustc_session/src/config.rs5
-rw-r--r--compiler/rustc_session/src/config/native_libs.rs3
-rw-r--r--compiler/rustc_session/src/cstore.rs24
-rw-r--r--compiler/rustc_session/src/errors.rs24
-rw-r--r--compiler/rustc_session/src/options.rs71
-rw-r--r--compiler/rustc_session/src/session.rs62
-rw-r--r--compiler/rustc_session/src/utils.rs64
7 files changed, 94 insertions, 159 deletions
diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs
index 9793d8091e2..297df7c2c97 100644
--- a/compiler/rustc_session/src/config.rs
+++ b/compiler/rustc_session/src/config.rs
@@ -70,6 +70,7 @@ pub const PRINT_KINDS: &[(&str, PrintKind)] = &[
     ("target-libdir", PrintKind::TargetLibdir),
     ("target-list", PrintKind::TargetList),
     ("target-spec-json", PrintKind::TargetSpecJson),
+    ("target-spec-json-schema", PrintKind::TargetSpecJsonSchema),
     ("tls-models", PrintKind::TlsModels),
     // tidy-alphabetical-end
 ];
@@ -1043,6 +1044,7 @@ pub enum PrintKind {
     TargetLibdir,
     TargetList,
     TargetSpecJson,
+    TargetSpecJsonSchema,
     TlsModels,
     // tidy-alphabetical-end
 }
@@ -2323,7 +2325,8 @@ fn is_print_request_stable(print_kind: PrintKind) -> bool {
         | PrintKind::CheckCfg
         | PrintKind::CrateRootLintLevels
         | PrintKind::SupportedCrateTypes
-        | PrintKind::TargetSpecJson => false,
+        | PrintKind::TargetSpecJson
+        | PrintKind::TargetSpecJsonSchema => false,
         _ => true,
     }
 }
diff --git a/compiler/rustc_session/src/config/native_libs.rs b/compiler/rustc_session/src/config/native_libs.rs
index f1f0aeb5e59..50a0593f887 100644
--- a/compiler/rustc_session/src/config/native_libs.rs
+++ b/compiler/rustc_session/src/config/native_libs.rs
@@ -5,10 +5,11 @@
 //! which have their own parser in `rustc_metadata`.)
 
 use rustc_feature::UnstableFeatures;
+use rustc_hir::attrs::NativeLibKind;
 
 use crate::EarlyDiagCtxt;
 use crate::config::UnstableOptions;
-use crate::utils::{NativeLib, NativeLibKind};
+use crate::utils::NativeLib;
 
 #[cfg(test)]
 mod tests;
diff --git a/compiler/rustc_session/src/cstore.rs b/compiler/rustc_session/src/cstore.rs
index 4cfc745dec2..30f6256a75e 100644
--- a/compiler/rustc_session/src/cstore.rs
+++ b/compiler/rustc_session/src/cstore.rs
@@ -6,8 +6,8 @@ use std::any::Any;
 use std::path::PathBuf;
 
 use rustc_abi::ExternAbi;
-use rustc_ast as ast;
 use rustc_data_structures::sync::{self, AppendOnlyIndexVec, FreezeLock};
+use rustc_hir::attrs::{CfgEntry, NativeLibKind, PeImportNameType};
 use rustc_hir::def_id::{
     CrateNum, DefId, LOCAL_CRATE, LocalDefId, StableCrateId, StableCrateIdMap,
 };
@@ -16,7 +16,6 @@ use rustc_macros::{Decodable, Encodable, HashStable_Generic};
 use rustc_span::{Span, Symbol};
 
 use crate::search_paths::PathKind;
-use crate::utils::NativeLibKind;
 
 // lonely orphan structs and enums looking for a better home
 
@@ -72,7 +71,7 @@ pub struct NativeLib {
     pub name: Symbol,
     /// If packed_bundled_libs enabled, actual filename of library is stored.
     pub filename: Option<Symbol>,
-    pub cfg: Option<ast::MetaItemInner>,
+    pub cfg: Option<CfgEntry>,
     pub foreign_module: Option<DefId>,
     pub verbatim: Option<bool>,
     pub dll_imports: Vec<DllImport>,
@@ -88,25 +87,6 @@ impl NativeLib {
     }
 }
 
-/// Different ways that the PE Format can decorate a symbol name.
-/// From <https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#import-name-type>
-#[derive(Copy, Clone, Debug, Encodable, Decodable, HashStable_Generic, PartialEq, Eq)]
-pub enum PeImportNameType {
-    /// IMPORT_ORDINAL
-    /// Uses the ordinal (i.e., a number) rather than the name.
-    Ordinal(u16),
-    /// Same as IMPORT_NAME
-    /// Name is decorated with all prefixes and suffixes.
-    Decorated,
-    /// Same as IMPORT_NAME_NOPREFIX
-    /// Prefix (e.g., the leading `_` or `@`) is skipped, but suffix is kept.
-    NoPrefix,
-    /// Same as IMPORT_NAME_UNDECORATE
-    /// Prefix (e.g., the leading `_` or `@`) and suffix (the first `@` and all
-    /// trailing characters) are skipped.
-    Undecorated,
-}
-
 #[derive(Clone, Debug, Encodable, Decodable, HashStable_Generic)]
 pub struct DllImport {
     pub name: Symbol,
diff --git a/compiler/rustc_session/src/errors.rs b/compiler/rustc_session/src/errors.rs
index 34da54a20bf..50bc7348dc9 100644
--- a/compiler/rustc_session/src/errors.rs
+++ b/compiler/rustc_session/src/errors.rs
@@ -384,6 +384,10 @@ pub fn report_lit_error(
     lit: token::Lit,
     span: Span,
 ) -> ErrorGuaranteed {
+    create_lit_error(psess, err, lit, span).emit()
+}
+
+pub fn create_lit_error(psess: &ParseSess, err: LitError, lit: token::Lit, span: Span) -> Diag<'_> {
     // Checks if `s` looks like i32 or u1234 etc.
     fn looks_like_width_suffix(first_chars: &[char], s: &str) -> bool {
         s.len() > 1 && s.starts_with(first_chars) && s[1..].chars().all(|c| c.is_ascii_digit())
@@ -414,32 +418,32 @@ pub fn report_lit_error(
     let dcx = psess.dcx();
     match err {
         LitError::InvalidSuffix(suffix) => {
-            dcx.emit_err(InvalidLiteralSuffix { span, kind: lit.kind.descr(), suffix })
+            dcx.create_err(InvalidLiteralSuffix { span, kind: lit.kind.descr(), suffix })
         }
         LitError::InvalidIntSuffix(suffix) => {
             let suf = suffix.as_str();
             if looks_like_width_suffix(&['i', 'u'], suf) {
                 // If it looks like a width, try to be helpful.
-                dcx.emit_err(InvalidIntLiteralWidth { span, width: suf[1..].into() })
+                dcx.create_err(InvalidIntLiteralWidth { span, width: suf[1..].into() })
             } else if let Some(fixed) = fix_base_capitalisation(lit.symbol.as_str(), suf) {
-                dcx.emit_err(InvalidNumLiteralBasePrefix { span, fixed })
+                dcx.create_err(InvalidNumLiteralBasePrefix { span, fixed })
             } else {
-                dcx.emit_err(InvalidNumLiteralSuffix { span, suffix: suf.to_string() })
+                dcx.create_err(InvalidNumLiteralSuffix { span, suffix: suf.to_string() })
             }
         }
         LitError::InvalidFloatSuffix(suffix) => {
             let suf = suffix.as_str();
             if looks_like_width_suffix(&['f'], suf) {
                 // If it looks like a width, try to be helpful.
-                dcx.emit_err(InvalidFloatLiteralWidth { span, width: suf[1..].to_string() })
+                dcx.create_err(InvalidFloatLiteralWidth { span, width: suf[1..].to_string() })
             } else {
-                dcx.emit_err(InvalidFloatLiteralSuffix { span, suffix: suf.to_string() })
+                dcx.create_err(InvalidFloatLiteralSuffix { span, suffix: suf.to_string() })
             }
         }
         LitError::NonDecimalFloat(base) => match base {
-            16 => dcx.emit_err(HexadecimalFloatLiteralNotSupported { span }),
-            8 => dcx.emit_err(OctalFloatLiteralNotSupported { span }),
-            2 => dcx.emit_err(BinaryFloatLiteralNotSupported { span }),
+            16 => dcx.create_err(HexadecimalFloatLiteralNotSupported { span }),
+            8 => dcx.create_err(OctalFloatLiteralNotSupported { span }),
+            2 => dcx.create_err(BinaryFloatLiteralNotSupported { span }),
             _ => unreachable!(),
         },
         LitError::IntTooLarge(base) => {
@@ -450,7 +454,7 @@ pub fn report_lit_error(
                 16 => format!("{max:#x}"),
                 _ => format!("{max}"),
             };
-            dcx.emit_err(IntLiteralTooLarge { span, limit })
+            dcx.create_err(IntLiteralTooLarge { span, limit })
         }
     }
 }
diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs
index 6d5be2d92cd..69facde6936 100644
--- a/compiler/rustc_session/src/options.rs
+++ b/compiler/rustc_session/src/options.rs
@@ -83,10 +83,77 @@ pub struct TargetModifier {
     pub value_name: String,
 }
 
+mod target_modifier_consistency_check {
+    use super::*;
+    pub(super) fn sanitizer(l: &TargetModifier, r: Option<&TargetModifier>) -> bool {
+        let mut lparsed: SanitizerSet = Default::default();
+        let lval = if l.value_name.is_empty() { None } else { Some(l.value_name.as_str()) };
+        parse::parse_sanitizers(&mut lparsed, lval);
+
+        let mut rparsed: SanitizerSet = Default::default();
+        let rval = r.filter(|v| !v.value_name.is_empty()).map(|v| v.value_name.as_str());
+        parse::parse_sanitizers(&mut rparsed, rval);
+
+        // Some sanitizers need to be target modifiers, and some do not.
+        // For now, we should mark all sanitizers as target modifiers except for these:
+        // AddressSanitizer, LeakSanitizer
+        let tmod_sanitizers = SanitizerSet::MEMORY
+            | SanitizerSet::THREAD
+            | SanitizerSet::HWADDRESS
+            | SanitizerSet::CFI
+            | SanitizerSet::MEMTAG
+            | SanitizerSet::SHADOWCALLSTACK
+            | SanitizerSet::KCFI
+            | SanitizerSet::KERNELADDRESS
+            | SanitizerSet::SAFESTACK
+            | SanitizerSet::DATAFLOW;
+
+        lparsed & tmod_sanitizers == rparsed & tmod_sanitizers
+    }
+    pub(super) fn sanitizer_cfi_normalize_integers(
+        opts: &Options,
+        l: &TargetModifier,
+        r: Option<&TargetModifier>,
+    ) -> bool {
+        // For kCFI, the helper flag -Zsanitizer-cfi-normalize-integers should also be a target modifier
+        if opts.unstable_opts.sanitizer.contains(SanitizerSet::KCFI) {
+            if let Some(r) = r {
+                return l.extend().tech_value == r.extend().tech_value;
+            } else {
+                return false;
+            }
+        }
+        true
+    }
+}
+
 impl TargetModifier {
     pub fn extend(&self) -> ExtendedTargetModifierInfo {
         self.opt.reparse(&self.value_name)
     }
+    // Custom consistency check for target modifiers (or default `l.tech_value == r.tech_value`)
+    // When other is None, consistency with default value is checked
+    pub fn consistent(&self, opts: &Options, other: Option<&TargetModifier>) -> bool {
+        assert!(other.is_none() || self.opt == other.unwrap().opt);
+        match self.opt {
+            OptionsTargetModifiers::UnstableOptions(unstable) => match unstable {
+                UnstableOptionsTargetModifiers::sanitizer => {
+                    return target_modifier_consistency_check::sanitizer(self, other);
+                }
+                UnstableOptionsTargetModifiers::sanitizer_cfi_normalize_integers => {
+                    return target_modifier_consistency_check::sanitizer_cfi_normalize_integers(
+                        opts, self, other,
+                    );
+                }
+                _ => {}
+            },
+            _ => {}
+        };
+        match other {
+            Some(other) => self.extend().tech_value == other.extend().tech_value,
+            None => false,
+        }
+    }
 }
 
 fn tmod_push_impl(
@@ -2504,13 +2571,13 @@ written to standard error output)"),
     retpoline_external_thunk: bool = (false, parse_bool, [TRACKED TARGET_MODIFIER],
         "enables retpoline-external-thunk, retpoline-indirect-branches and retpoline-indirect-calls \
         target features (default: no)"),
-    sanitizer: SanitizerSet = (SanitizerSet::empty(), parse_sanitizers, [TRACKED],
+    sanitizer: SanitizerSet = (SanitizerSet::empty(), parse_sanitizers, [TRACKED TARGET_MODIFIER],
         "use a sanitizer"),
     sanitizer_cfi_canonical_jump_tables: Option<bool> = (Some(true), parse_opt_bool, [TRACKED],
         "enable canonical jump tables (default: yes)"),
     sanitizer_cfi_generalize_pointers: Option<bool> = (None, parse_opt_bool, [TRACKED],
         "enable generalizing pointer types (default: no)"),
-    sanitizer_cfi_normalize_integers: Option<bool> = (None, parse_opt_bool, [TRACKED],
+    sanitizer_cfi_normalize_integers: Option<bool> = (None, parse_opt_bool, [TRACKED TARGET_MODIFIER],
         "enable normalizing integer types (default: no)"),
     sanitizer_dataflow_abilist: Vec<String> = (Vec::new(), parse_comma_list, [TRACKED],
         "additional ABI list files that control how shadow parameters are passed (comma separated)"),
diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs
index 96767d05439..3525c7c1d1a 100644
--- a/compiler/rustc_session/src/session.rs
+++ b/compiler/rustc_session/src/session.rs
@@ -1,10 +1,9 @@
 use std::any::Any;
-use std::ops::{Div, Mul};
 use std::path::{Path, PathBuf};
 use std::str::FromStr;
 use std::sync::Arc;
 use std::sync::atomic::AtomicBool;
-use std::{env, fmt, io};
+use std::{env, io};
 
 use rand::{RngCore, rng};
 use rustc_ast::NodeId;
@@ -25,6 +24,7 @@ use rustc_errors::{
     Diag, DiagCtxt, DiagCtxtHandle, DiagMessage, Diagnostic, ErrorGuaranteed, FatalAbort,
     LintEmitter, TerminalUrl, fallback_fluent_bundle,
 };
+use rustc_hir::limit::Limit;
 use rustc_macros::HashStable_Generic;
 pub use rustc_span::def_id::StableCrateId;
 use rustc_span::edition::Edition;
@@ -62,64 +62,6 @@ pub enum CtfeBacktrace {
     Immediate,
 }
 
-/// New-type wrapper around `usize` for representing limits. Ensures that comparisons against
-/// limits are consistent throughout the compiler.
-#[derive(Clone, Copy, Debug, HashStable_Generic)]
-pub struct Limit(pub usize);
-
-impl Limit {
-    /// Create a new limit from a `usize`.
-    pub fn new(value: usize) -> Self {
-        Limit(value)
-    }
-
-    /// Create a new unlimited limit.
-    pub fn unlimited() -> Self {
-        Limit(usize::MAX)
-    }
-
-    /// Check that `value` is within the limit. Ensures that the same comparisons are used
-    /// throughout the compiler, as mismatches can cause ICEs, see #72540.
-    #[inline]
-    pub fn value_within_limit(&self, value: usize) -> bool {
-        value <= self.0
-    }
-}
-
-impl From<usize> for Limit {
-    fn from(value: usize) -> Self {
-        Self::new(value)
-    }
-}
-
-impl fmt::Display for Limit {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        self.0.fmt(f)
-    }
-}
-
-impl Div<usize> for Limit {
-    type Output = Limit;
-
-    fn div(self, rhs: usize) -> Self::Output {
-        Limit::new(self.0 / rhs)
-    }
-}
-
-impl Mul<usize> for Limit {
-    type Output = Limit;
-
-    fn mul(self, rhs: usize) -> Self::Output {
-        Limit::new(self.0 * rhs)
-    }
-}
-
-impl rustc_errors::IntoDiagArg for Limit {
-    fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> rustc_errors::DiagArgValue {
-        self.to_string().into_diag_arg(&mut None)
-    }
-}
-
 #[derive(Clone, Copy, Debug, HashStable_Generic)]
 pub struct Limits {
     /// The maximum recursion limit for potentially infinitely recursive
diff --git a/compiler/rustc_session/src/utils.rs b/compiler/rustc_session/src/utils.rs
index e9ddd66b5e8..c64d9bc1efe 100644
--- a/compiler/rustc_session/src/utils.rs
+++ b/compiler/rustc_session/src/utils.rs
@@ -3,6 +3,7 @@ use std::sync::OnceLock;
 
 use rustc_data_structures::profiling::VerboseTimingGuard;
 use rustc_fs_util::try_canonicalize;
+use rustc_hir::attrs::NativeLibKind;
 use rustc_macros::{Decodable, Encodable, HashStable_Generic};
 
 use crate::session::Session;
@@ -17,69 +18,6 @@ impl Session {
     }
 }
 
-#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Encodable, Decodable)]
-#[derive(HashStable_Generic)]
-pub enum NativeLibKind {
-    /// Static library (e.g. `libfoo.a` on Linux or `foo.lib` on Windows/MSVC)
-    Static {
-        /// Whether to bundle objects from static library into produced rlib
-        bundle: Option<bool>,
-        /// Whether to link static library without throwing any object files away
-        whole_archive: Option<bool>,
-    },
-    /// Dynamic library (e.g. `libfoo.so` on Linux)
-    /// or an import library corresponding to a dynamic library (e.g. `foo.lib` on Windows/MSVC).
-    Dylib {
-        /// Whether the dynamic library will be linked only if it satisfies some undefined symbols
-        as_needed: Option<bool>,
-    },
-    /// Dynamic library (e.g. `foo.dll` on Windows) without a corresponding import library.
-    /// On Linux, it refers to a generated shared library stub.
-    RawDylib,
-    /// A macOS-specific kind of dynamic libraries.
-    Framework {
-        /// Whether the framework will be linked only if it satisfies some undefined symbols
-        as_needed: Option<bool>,
-    },
-    /// Argument which is passed to linker, relative order with libraries and other arguments
-    /// is preserved
-    LinkArg,
-
-    /// Module imported from WebAssembly
-    WasmImportModule,
-
-    /// The library kind wasn't specified, `Dylib` is currently used as a default.
-    Unspecified,
-}
-
-impl NativeLibKind {
-    pub fn has_modifiers(&self) -> bool {
-        match self {
-            NativeLibKind::Static { bundle, whole_archive } => {
-                bundle.is_some() || whole_archive.is_some()
-            }
-            NativeLibKind::Dylib { as_needed } | NativeLibKind::Framework { as_needed } => {
-                as_needed.is_some()
-            }
-            NativeLibKind::RawDylib
-            | NativeLibKind::Unspecified
-            | NativeLibKind::LinkArg
-            | NativeLibKind::WasmImportModule => false,
-        }
-    }
-
-    pub fn is_statically_included(&self) -> bool {
-        matches!(self, NativeLibKind::Static { .. })
-    }
-
-    pub fn is_dllimport(&self) -> bool {
-        matches!(
-            self,
-            NativeLibKind::Dylib { .. } | NativeLibKind::RawDylib | NativeLibKind::Unspecified
-        )
-    }
-}
-
 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Encodable, Decodable)]
 #[derive(HashStable_Generic)]
 pub struct NativeLib {