bjoernager/rust
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Enable varargs support for AAPCS calling convention

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This is the default calling convention for ARM - it is used for extern "C",
therefore it supports varargs.
This commit is contained in:
Soveu 2023-09-14 23:21:39 +02:00
parent ccf817b9bb
commit eea6149e03
4 changed files with 8 additions and 4 deletions
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3
compiler/rustc_target/src/spec/abi.rs
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@ -68,7 +68,7 @@ pub enum Abi {
impl Abi {
pub fn supports_varargs(self) -> bool {
// * C and Cdecl obviously support varargs.
// * C can be based on SysV64 or Win64, so they must support varargs.
// * C can be based on Aapcs, SysV64 or Win64, so they must support varargs.
// * EfiApi is based on Win64 or C, so it also supports it.
//
// * Stdcall does not, because it would be impossible for the callee to clean
@ -79,6 +79,7 @@ impl Abi {
match self {
Self::C { .. }
| Self::Cdecl { .. }
| Self::Aapcs { .. }
| Self::Win64 { .. }
| Self::SysV64 { .. }
| Self::EfiApi => true,