Auto merge of #128195 - matthiaskrgr:rollup-195dfdf, r=matthiaskrgr

Rollup of 6 pull requests

Successful merges:

 - #126908 (Use Cow<'static, str> for InlineAsmTemplatePiece::String)
 - #127999 (Inject arm32 shims into Windows metadata generation)
 - #128137 (CStr: derive PartialEq, Eq; add test for Ord)
 - #128185 (Fix a span error when parsing a wrong param of function.)
 - #128187 (Fix 1.80.0 version in RELEASES.md)
 - #128189 (Turn an unreachable code path into an ICE)

r? `@ghost`
`@rustbot` modify labels: rollup

RELEASES.md

@@ -1,4 +1,4 @@
-Version 1.80 (2024-07-25)
+Version 1.80.0 (2024-07-25)
 ==========================
 
 <a id="1.80-Language"></a>

compiler/rustc_ast/src/ast.rs

@@ -36,6 +36,7 @@ use rustc_macros::{Decodable, Encodable, HashStable_Generic};
 use rustc_span::source_map::{respan, Spanned};
 use rustc_span::symbol::{kw, sym, Ident, Symbol};
 use rustc_span::{ErrorGuaranteed, Span, DUMMY_SP};
+use std::borrow::Cow;
 use std::cmp;
 use std::fmt;
 use std::mem;
@@ -2308,7 +2309,7 @@ impl std::fmt::Debug for InlineAsmOptions {
 
 #[derive(Clone, PartialEq, Encodable, Decodable, Debug, Hash, HashStable_Generic)]
 pub enum InlineAsmTemplatePiece {
-    String(String),
+    String(Cow<'static, str>),
     Placeholder { operand_idx: usize, modifier: Option<char>, span: Span },
 }
 

compiler/rustc_builtin_macros/src/asm.rs

@@ -459,7 +459,7 @@ fn expand_preparsed_asm(
 
     for (i, template_expr) in args.templates.into_iter().enumerate() {
         if i != 0 {
-            template.push(ast::InlineAsmTemplatePiece::String("\n".to_string()));
+            template.push(ast::InlineAsmTemplatePiece::String("\n".into()));
         }
 
         let msg = "asm template must be a string literal";
@@ -527,7 +527,7 @@ fn expand_preparsed_asm(
 
         // Don't treat raw asm as a format string.
         if args.options.contains(ast::InlineAsmOptions::RAW) {
-            template.push(ast::InlineAsmTemplatePiece::String(template_str.to_string()));
+            template.push(ast::InlineAsmTemplatePiece::String(template_str.to_string().into()));
             let template_num_lines = 1 + template_str.matches('\n').count();
             line_spans.extend(std::iter::repeat(template_sp).take(template_num_lines));
             continue;
@@ -577,7 +577,7 @@ fn expand_preparsed_asm(
         for piece in unverified_pieces {
             match piece {
                 parse::Piece::String(s) => {
-                    template.push(ast::InlineAsmTemplatePiece::String(s.to_string()))
+                    template.push(ast::InlineAsmTemplatePiece::String(s.to_string().into()))
                 }
                 parse::Piece::NextArgument(arg) => {
                     let span = arg_spans.next().unwrap_or(template_sp);

compiler/rustc_codegen_cranelift/src/inline_asm.rs

@@ -46,9 +46,7 @@ pub(crate) fn codegen_inline_asm_terminator<'tcx>(
     // Used by panic_abort on Windows, but uses a syntax which only happens to work with
     // asm!() by accident and breaks with the GNU assembler as well as global_asm!() for
     // the LLVM backend.
-    if template.len() == 1
+    if template.len() == 1 && template[0] == InlineAsmTemplatePiece::String("int $$0x29".into()) {
-        && template[0] == InlineAsmTemplatePiece::String("int $$0x29".to_string())
-    {
         fx.bcx.ins().trap(TrapCode::User(1));
         return;
     }

compiler/rustc_codegen_cranelift/src/intrinsics/llvm_x86.rs

@@ -40,7 +40,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
                     shl rdx, 32
                     or rax, rdx
                     "
-                    .to_string(),
+                    .into(),
                 )],
                 &[
                     CInlineAsmOperand::In {
@@ -471,7 +471,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
             // into 0x80000000 for which Cranelift doesn't have a native instruction.
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String(format!("cvtps2dq xmm0, xmm0"))],
+                &[InlineAsmTemplatePiece::String("cvtps2dq xmm0, xmm0".into())],
                 &[CInlineAsmOperand::InOut {
                     reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm0)),
                     _late: true,
@@ -875,7 +875,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String(asm.to_string())],
+                &[InlineAsmTemplatePiece::String(asm.into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::ax)),
@@ -914,7 +914,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String(format!("pcmpestri xmm0, xmm1, {imm8}"))],
+                &[InlineAsmTemplatePiece::String(format!("pcmpestri xmm0, xmm1, {imm8}").into())],
                 &[
                     CInlineAsmOperand::In {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm0)),
@@ -967,7 +967,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String(format!("pcmpestrm xmm0, xmm1, {imm8}"))],
+                &[InlineAsmTemplatePiece::String(format!("pcmpestrm xmm0, xmm1, {imm8}").into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm0)),
@@ -1015,7 +1015,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String(format!("pclmulqdq xmm0, xmm1, {imm8}"))],
+                &[InlineAsmTemplatePiece::String(format!("pclmulqdq xmm0, xmm1, {imm8}").into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm0)),
@@ -1052,7 +1052,9 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String(format!("aeskeygenassist xmm0, xmm0, {imm8}"))],
+                &[InlineAsmTemplatePiece::String(
+                    format!("aeskeygenassist xmm0, xmm0, {imm8}").into(),
+                )],
                 &[CInlineAsmOperand::InOut {
                     reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm0)),
                     _late: true,
@@ -1071,7 +1073,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("aesimc xmm0, xmm0".to_string())],
+                &[InlineAsmTemplatePiece::String("aesimc xmm0, xmm0".into())],
                 &[CInlineAsmOperand::InOut {
                     reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm0)),
                     _late: true,
@@ -1091,7 +1093,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("aesenc xmm0, xmm1".to_string())],
+                &[InlineAsmTemplatePiece::String("aesenc xmm0, xmm1".into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm0)),
@@ -1117,7 +1119,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("aesenclast xmm0, xmm1".to_string())],
+                &[InlineAsmTemplatePiece::String("aesenclast xmm0, xmm1".into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm0)),
@@ -1143,7 +1145,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("aesdec xmm0, xmm1".to_string())],
+                &[InlineAsmTemplatePiece::String("aesdec xmm0, xmm1".into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm0)),
@@ -1169,7 +1171,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("aesdeclast xmm0, xmm1".to_string())],
+                &[InlineAsmTemplatePiece::String("aesdeclast xmm0, xmm1".into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm0)),
@@ -1207,7 +1209,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String(format!("sha1rnds4 xmm1, xmm2, {func}"))],
+                &[InlineAsmTemplatePiece::String(format!("sha1rnds4 xmm1, xmm2, {func}").into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm1)),
@@ -1233,7 +1235,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("sha1msg1 xmm1, xmm2".to_string())],
+                &[InlineAsmTemplatePiece::String("sha1msg1 xmm1, xmm2".into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm1)),
@@ -1259,7 +1261,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("sha1msg2 xmm1, xmm2".to_string())],
+                &[InlineAsmTemplatePiece::String("sha1msg2 xmm1, xmm2".into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm1)),
@@ -1285,7 +1287,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("sha1nexte xmm1, xmm2".to_string())],
+                &[InlineAsmTemplatePiece::String("sha1nexte xmm1, xmm2".into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm1)),
@@ -1312,7 +1314,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("sha256rnds2 xmm1, xmm2".to_string())],
+                &[InlineAsmTemplatePiece::String("sha256rnds2 xmm1, xmm2".into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm1)),
@@ -1343,7 +1345,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("sha256msg1 xmm1, xmm2".to_string())],
+                &[InlineAsmTemplatePiece::String("sha256msg1 xmm1, xmm2".into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm1)),
@@ -1369,7 +1371,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
 
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("sha256msg2 xmm1, xmm2".to_string())],
+                &[InlineAsmTemplatePiece::String("sha256msg2 xmm1, xmm2".into())],
                 &[
                     CInlineAsmOperand::InOut {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::xmm1)),
@@ -1435,7 +1437,7 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
             let edx_place = res_place.place_field(fx, FieldIdx::new(1));
             codegen_inline_asm_inner(
                 fx,
-                &[InlineAsmTemplatePiece::String("rdtsc".to_string())],
+                &[InlineAsmTemplatePiece::String("rdtsc".into())],
                 &[
                     CInlineAsmOperand::Out {
                         reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::ax)),

compiler/rustc_mir_build/src/thir/cx/expr.rs

@@ -3,7 +3,6 @@ use crate::thir::cx::region::Scope;
 use crate::thir::cx::Cx;
 use crate::thir::util::UserAnnotatedTyHelpers;
 use itertools::Itertools;
-use rustc_ast::LitKind;
 use rustc_data_structures::stack::ensure_sufficient_stack;
 use rustc_hir as hir;
 use rustc_hir::def::{CtorKind, CtorOf, DefKind, Res};
@@ -22,8 +21,7 @@ use rustc_middle::ty::{
     self, AdtKind, InlineConstArgs, InlineConstArgsParts, ScalarInt, Ty, UpvarArgs, UserType,
 };
 use rustc_middle::{bug, span_bug};
-use rustc_span::source_map::Spanned;
+use rustc_span::{sym, Span};
-use rustc_span::{sym, Span, DUMMY_SP};
 use rustc_target::abi::{FieldIdx, FIRST_VARIANT};
 use tracing::{debug, info, instrument, trace};
 
@@ -899,14 +897,10 @@ impl<'tcx> Cx<'tcx> {
                 let hir_id = self.tcx.local_def_id_to_hir_id(def_id.expect_local());
                 let generics = self.tcx.generics_of(hir_id.owner);
                 let Some(&index) = generics.param_def_id_to_index.get(&def_id) else {
-                    let guar = self.tcx.dcx().has_errors().unwrap();
+                    span_bug!(
-                    // We already errored about a late bound const
+                        expr.span,
-
+                        "Should have already errored about late bound consts: {def_id:?}"
-                    let lit = self
+                    );
-                        .tcx
-                        .hir_arena
-                        .alloc(Spanned { span: DUMMY_SP, node: LitKind::Err(guar) });
-                    return ExprKind::Literal { lit, neg: false };
                 };
                 let name = self.tcx.hir().name(hir_id);
                 let param = ty::ParamConst::new(index, name);

compiler/rustc_parse/src/parser/item.rs

@@ -2773,7 +2773,14 @@ impl<'a> Parser<'a> {
             let snapshot = p.create_snapshot_for_diagnostic();
             let param = p.parse_param_general(req_name, first_param).or_else(|e| {
                 let guar = e.emit();
-                let lo = p.prev_token.span;
+                // When parsing a param failed, we should check to make the span of the param
+                // not contain '(' before it.
+                // For example when parsing `*mut Self` in function `fn oof(*mut Self)`.
+                let lo = if let TokenKind::OpenDelim(Delimiter::Parenthesis) = p.prev_token.kind {
+                    p.prev_token.span.shrink_to_hi()
+                } else {
+                    p.prev_token.span
+                };
                 p.restore_snapshot(snapshot);
                 // Skip every token until next possible arg or end.
                 p.eat_to_tokens(&[&token::Comma, &token::CloseDelim(Delimiter::Parenthesis)]);

library/core/src/ffi/c_str.rs

@@ -94,7 +94,7 @@ use crate::str;
 /// ```
 ///
 /// [str]: prim@str "str"
-#[derive(Hash)]
+#[derive(PartialEq, Eq, Hash)]
 #[stable(feature = "core_c_str", since = "1.64.0")]
 #[rustc_has_incoherent_inherent_impls]
 #[lang = "CStr"]
@@ -104,7 +104,6 @@ use crate::str;
 // want `repr(transparent)` but we don't want it to show up in rustdoc, so we hide it under
 // `cfg(doc)`. This is an ad-hoc implementation of attribute privacy.
 #[repr(transparent)]
-#[allow(clippy::derived_hash_with_manual_eq)]
 pub struct CStr {
     // FIXME: this should not be represented with a DST slice but rather with
     //        just a raw `c_char` along with some form of marker to make
@@ -678,15 +677,9 @@ impl CStr {
     }
 }
 
-#[stable(feature = "rust1", since = "1.0.0")]
+// `.to_bytes()` representations are compared instead of the inner `[c_char]`s,
-impl PartialEq for CStr {
+// because `c_char` is `i8` (not `u8`) on some platforms.
-    #[inline]
+// That is why this is implemented manually and not derived.
-    fn eq(&self, other: &CStr) -> bool {
-        self.to_bytes().eq(other.to_bytes())
-    }
-}
-#[stable(feature = "rust1", since = "1.0.0")]
-impl Eq for CStr {}
 #[stable(feature = "rust1", since = "1.0.0")]
 impl PartialOrd for CStr {
     #[inline]

library/core/tests/ffi.rs

@@ -0,0 +1 @@
+mod cstr;

library/core/tests/ffi/cstr.rs

@@ -0,0 +1,15 @@
+use core::ffi::CStr;
+
+#[test]
+fn compares_as_u8s() {
+    let a: &CStr = c"Hello!"; // Starts with ascii
+    let a_bytes: &[u8] = a.to_bytes();
+    assert!((..0b1000_0000).contains(&a_bytes[0]));
+
+    let b: &CStr = c"こんにちは！"; // Starts with non ascii
+    let b_bytes: &[u8] = b.to_bytes();
+    assert!((0b1000_0000..).contains(&b_bytes[0]));
+
+    assert_eq!(Ord::cmp(a, b), Ord::cmp(a_bytes, b_bytes));
+    assert_eq!(PartialOrd::partial_cmp(a, b), PartialOrd::partial_cmp(a_bytes, b_bytes));
+}

library/core/tests/lib.rs

@@ -132,6 +132,7 @@ mod clone;
 mod cmp;
 mod const_ptr;
 mod convert;
+mod ffi;
 mod fmt;
 mod future;
 mod hash;

library/std/src/sys/pal/windows/c.rs

@@ -276,44 +276,3 @@ compat_fn_with_fallback! {
         Status as u32
     }
 }
-
-// # Arm32 shim
-//
-// AddVectoredExceptionHandler and WSAStartup use platform-specific types.
-// However, Microsoft no longer supports thumbv7a so definitions for those targets
-// are not included in the win32 metadata. We work around that by defining them here.
-//
-// Where possible, these definitions should be kept in sync with https://docs.rs/windows-sys
-cfg_if::cfg_if! {
-if #[cfg(not(target_vendor = "uwp"))] {
-    #[link(name = "kernel32")]
-    extern "system" {
-        pub fn AddVectoredExceptionHandler(
-            first: u32,
-            handler: PVECTORED_EXCEPTION_HANDLER,
-        ) -> *mut c_void;
-    }
-    pub type PVECTORED_EXCEPTION_HANDLER = Option<
-        unsafe extern "system" fn(exceptioninfo: *mut EXCEPTION_POINTERS) -> i32,
-    >;
-    #[repr(C)]
-    pub struct EXCEPTION_POINTERS {
-        pub ExceptionRecord: *mut EXCEPTION_RECORD,
-        pub ContextRecord: *mut CONTEXT,
-    }
-    #[cfg(target_arch = "arm")]
-    pub enum CONTEXT {}
-}}
-// WSAStartup is only redefined here so that we can override WSADATA for Arm32
-windows_targets::link!("ws2_32.dll" "system" fn WSAStartup(wversionrequested: u16, lpwsadata: *mut WSADATA) -> i32);
-#[cfg(target_arch = "arm")]
-#[repr(C)]
-pub struct WSADATA {
-    pub wVersion: u16,
-    pub wHighVersion: u16,
-    pub szDescription: [u8; 257],
-    pub szSystemStatus: [u8; 129],
-    pub iMaxSockets: u16,
-    pub iMaxUdpDg: u16,
-    pub lpVendorInfo: PSTR,
-}

library/std/src/sys/pal/windows/c/bindings.txt

@@ -2176,6 +2176,7 @@ Windows.Win32.Networking.WinSock.WSARecv
 Windows.Win32.Networking.WinSock.WSASend
 Windows.Win32.Networking.WinSock.WSASERVICE_NOT_FOUND
 Windows.Win32.Networking.WinSock.WSASocketW
+Windows.Win32.Networking.WinSock.WSAStartup
 Windows.Win32.Networking.WinSock.WSASYSCALLFAILURE
 Windows.Win32.Networking.WinSock.WSASYSNOTREADY
 Windows.Win32.Networking.WinSock.WSATRY_AGAIN
@@ -2420,6 +2421,7 @@ Windows.Win32.System.Console.STD_HANDLE
 Windows.Win32.System.Console.STD_INPUT_HANDLE
 Windows.Win32.System.Console.STD_OUTPUT_HANDLE
 Windows.Win32.System.Console.WriteConsoleW
+Windows.Win32.System.Diagnostics.Debug.AddVectoredExceptionHandler
 Windows.Win32.System.Diagnostics.Debug.ARM64_NT_NEON128
 Windows.Win32.System.Diagnostics.Debug.CONTEXT
 Windows.Win32.System.Diagnostics.Debug.EXCEPTION_RECORD

library/std/src/sys/pal/windows/c/windows_sys.rs

@@ -5,6 +5,7 @@ windows_targets::link!("advapi32.dll" "system" fn OpenProcessToken(processhandle
 windows_targets::link!("advapi32.dll" "system" "SystemFunction036" fn RtlGenRandom(randombuffer : *mut core::ffi::c_void, randombufferlength : u32) -> BOOLEAN);
 windows_targets::link!("kernel32.dll" "system" fn AcquireSRWLockExclusive(srwlock : *mut SRWLOCK));
 windows_targets::link!("kernel32.dll" "system" fn AcquireSRWLockShared(srwlock : *mut SRWLOCK));
+windows_targets::link!("kernel32.dll" "system" fn AddVectoredExceptionHandler(first : u32, handler : PVECTORED_EXCEPTION_HANDLER) -> *mut core::ffi::c_void);
 windows_targets::link!("kernel32.dll" "system" fn CancelIo(hfile : HANDLE) -> BOOL);
 windows_targets::link!("kernel32.dll" "system" fn CloseHandle(hobject : HANDLE) -> BOOL);
 windows_targets::link!("kernel32.dll" "system" fn CompareStringOrdinal(lpstring1 : PCWSTR, cchcount1 : i32, lpstring2 : PCWSTR, cchcount2 : i32, bignorecase : BOOL) -> COMPARESTRING_RESULT);
@@ -114,6 +115,7 @@ windows_targets::link!("ws2_32.dll" "system" fn WSAGetLastError() -> WSA_ERROR);
 windows_targets::link!("ws2_32.dll" "system" fn WSARecv(s : SOCKET, lpbuffers : *const WSABUF, dwbuffercount : u32, lpnumberofbytesrecvd : *mut u32, lpflags : *mut u32, lpoverlapped : *mut OVERLAPPED, lpcompletionroutine : LPWSAOVERLAPPED_COMPLETION_ROUTINE) -> i32);
 windows_targets::link!("ws2_32.dll" "system" fn WSASend(s : SOCKET, lpbuffers : *const WSABUF, dwbuffercount : u32, lpnumberofbytessent : *mut u32, dwflags : u32, lpoverlapped : *mut OVERLAPPED, lpcompletionroutine : LPWSAOVERLAPPED_COMPLETION_ROUTINE) -> i32);
 windows_targets::link!("ws2_32.dll" "system" fn WSASocketW(af : i32, r#type : i32, protocol : i32, lpprotocolinfo : *const WSAPROTOCOL_INFOW, g : u32, dwflags : u32) -> SOCKET);
+windows_targets::link!("ws2_32.dll" "system" fn WSAStartup(wversionrequested : u16, lpwsadata : *mut WSADATA) -> i32);
 windows_targets::link!("ws2_32.dll" "system" fn accept(s : SOCKET, addr : *mut SOCKADDR, addrlen : *mut i32) -> SOCKET);
 windows_targets::link!("ws2_32.dll" "system" fn bind(s : SOCKET, name : *const SOCKADDR, namelen : i32) -> i32);
 windows_targets::link!("ws2_32.dll" "system" fn closesocket(s : SOCKET) -> i32);
@@ -2284,6 +2286,12 @@ pub type EXCEPTION_DISPOSITION = i32;
 pub const EXCEPTION_MAXIMUM_PARAMETERS: u32 = 15u32;
 #[repr(C)]
 #[derive(Clone, Copy)]
+pub struct EXCEPTION_POINTERS {
+    pub ExceptionRecord: *mut EXCEPTION_RECORD,
+    pub ContextRecord: *mut CONTEXT,
+}
+#[repr(C)]
+#[derive(Clone, Copy)]
 pub struct EXCEPTION_RECORD {
     pub ExceptionCode: NTSTATUS,
     pub ExceptionFlags: u32,
@@ -2860,6 +2868,8 @@ pub type PTIMERAPCROUTINE = Option<
         dwtimerhighvalue: u32,
     ),
 >;
+pub type PVECTORED_EXCEPTION_HANDLER =
+    Option<unsafe extern "system" fn(exceptioninfo: *mut EXCEPTION_POINTERS) -> i32>;
 pub type PWSTR = *mut u16;
 pub const READ_CONTROL: FILE_ACCESS_RIGHTS = 131072u32;
 pub const REALTIME_PRIORITY_CLASS: PROCESS_CREATION_FLAGS = 256u32;
@@ -3292,5 +3302,19 @@ pub struct XSAVE_FORMAT {
     pub XmmRegisters: [M128A; 8],
     pub Reserved4: [u8; 224],
 }
+
+#[cfg(target_arch = "arm")]
+#[repr(C)]
+pub struct WSADATA {
+    pub wVersion: u16,
+    pub wHighVersion: u16,
+    pub szDescription: [u8; 257],
+    pub szSystemStatus: [u8; 129],
+    pub iMaxSockets: u16,
+    pub iMaxUdpDg: u16,
+    pub lpVendorInfo: PSTR,
+}
+#[cfg(target_arch = "arm")]
+pub enum CONTEXT {}
 // ignore-tidy-filelength
 use super::windows_targets;

src/tools/generate-windows-sys/src/main.rs

@@ -4,6 +4,24 @@ use std::fs;
 use std::io::{Read, Seek, SeekFrom, Write};
 use std::path::PathBuf;
 
+/// 32-bit ARM is not supported by Microsoft so ARM types are not generated.
+/// Therefore we need to inject a few types to make the bindings work.
+const ARM32_SHIM: &str = r#"
+#[cfg(target_arch = "arm")]
+#[repr(C)]
+pub struct WSADATA {
+    pub wVersion: u16,
+    pub wHighVersion: u16,
+    pub szDescription: [u8; 257],
+    pub szSystemStatus: [u8; 129],
+    pub iMaxSockets: u16,
+    pub iMaxUdpDg: u16,
+    pub lpVendorInfo: PSTR,
+}
+#[cfg(target_arch = "arm")]
+pub enum CONTEXT {}
+"#;
+
 fn main() -> Result<(), Box<dyn Error>> {
     let mut path: PathBuf =
         env::args_os().nth(1).expect("a path to the rust repository is required").into();
@@ -16,6 +34,7 @@ fn main() -> Result<(), Box<dyn Error>> {
     println!("{info}");
 
     let mut f = std::fs::File::options().append(true).open("windows_sys.rs")?;
+    f.write_all(ARM32_SHIM.as_bytes())?;
     writeln!(&mut f, "// ignore-tidy-filelength")?;
     writeln!(&mut f, "use super::windows_targets;")?;
 

tests/ui/suggestions/suggest-add-self-issue-128042.rs

@@ -0,0 +1,12 @@
+struct Thing {
+    state: u8,
+}
+
+impl Thing {
+    fn oof(*mut Self) { //~ ERROR expected parameter name, found `*`
+        self.state = 1;
+        //~^ ERROR expected value, found module `self`
+    }
+}
+
+fn main() {}

tests/ui/suggestions/suggest-add-self-issue-128042.stderr

@@ -0,0 +1,22 @@
+error: expected parameter name, found `*`
+  --> $DIR/suggest-add-self-issue-128042.rs:6:12
+   |
+LL |     fn oof(*mut Self) {
+   |            ^ expected parameter name
+
+error[E0424]: expected value, found module `self`
+  --> $DIR/suggest-add-self-issue-128042.rs:7:9
+   |
+LL |     fn oof(*mut Self) {
+   |        --- this function doesn't have a `self` parameter
+LL |         self.state = 1;
+   |         ^^^^ `self` value is a keyword only available in methods with a `self` parameter
+   |
+help: add a `self` receiver parameter to make the associated `fn` a method
+   |
+LL |     fn oof(&self, *mut Self) {
+   |            ++++++
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0424`.