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disallow asm! in #[naked] functions

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also disallow the `noreturn` option, and infer `naked_asm!` as `!`
This commit is contained in:
Folkert de Vries
2024-09-05 13:45:26 +02:00
parent 1a9c1cbf36
commit 562ec5a6fb
27 changed files with 223 additions and 298 deletions
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20
compiler/rustc_ast/src/ast.rs
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@@ -2278,7 +2278,7 @@ impl InlineAsmOptions {
pub const COUNT: usize = Self::all().bits().count_ones() as usize;
pub const GLOBAL_OPTIONS: Self = Self::ATT_SYNTAX.union(Self::RAW);
pub const NAKED_OPTIONS: Self = Self::ATT_SYNTAX.union(Self::RAW).union(Self::NORETURN);
pub const NAKED_OPTIONS: Self = Self::ATT_SYNTAX.union(Self::RAW);
pub fn human_readable_names(&self) -> Vec<&'static str> {
let mut options = vec![];
@@ -2434,6 +2434,24 @@ pub enum AsmMacro {
NakedAsm,
}
impl AsmMacro {
pub const fn macro_name(&self) -> &'static str {
match self {
AsmMacro::Asm => "asm",
AsmMacro::GlobalAsm => "global_asm",
AsmMacro::NakedAsm => "naked_asm",
}
}
pub const fn is_supported_option(&self, option: InlineAsmOptions) -> bool {
match self {
AsmMacro::Asm => true,
AsmMacro::GlobalAsm => InlineAsmOptions::GLOBAL_OPTIONS.contains(option),
AsmMacro::NakedAsm => InlineAsmOptions::NAKED_OPTIONS.contains(option),
}
}
}
/// Inline assembly.
///
/// E.g., `asm!("NOP");`.