3 use rustc_macros::HashStable_Generic;
8 #[derive(PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, Debug)]
9 #[derive(HashStable_Generic, Encodable, Decodable)]
11 // Some of the ABIs come first because every time we add a new ABI, we have to re-bless all the
12 // hashing tests. These are used in many places, so giving them stable values reduces test
13 // churn. The specific values are meaningless.
16 Cdecl { unwind: bool },
17 Stdcall { unwind: bool },
18 Fastcall { unwind: bool },
19 Vectorcall { unwind: bool },
20 Thiscall { unwind: bool },
21 Aapcs { unwind: bool },
22 Win64 { unwind: bool },
23 SysV64 { unwind: bool },
30 AvrNonBlockingInterrupt,
33 System { unwind: bool },
40 #[derive(Copy, Clone)]
44 /// Name of this ABI as we like it called.
48 #[allow(non_upper_case_globals)]
49 const AbiDatas: &[AbiData] = &[
50 AbiData { abi: Abi::Rust, name: "Rust" },
51 AbiData { abi: Abi::C { unwind: false }, name: "C" },
52 AbiData { abi: Abi::C { unwind: true }, name: "C-unwind" },
53 AbiData { abi: Abi::Cdecl { unwind: false }, name: "cdecl" },
54 AbiData { abi: Abi::Cdecl { unwind: true }, name: "cdecl-unwind" },
55 AbiData { abi: Abi::Stdcall { unwind: false }, name: "stdcall" },
56 AbiData { abi: Abi::Stdcall { unwind: true }, name: "stdcall-unwind" },
57 AbiData { abi: Abi::Fastcall { unwind: false }, name: "fastcall" },
58 AbiData { abi: Abi::Fastcall { unwind: true }, name: "fastcall-unwind" },
59 AbiData { abi: Abi::Vectorcall { unwind: false }, name: "vectorcall" },
60 AbiData { abi: Abi::Vectorcall { unwind: true }, name: "vectorcall-unwind" },
61 AbiData { abi: Abi::Thiscall { unwind: false }, name: "thiscall" },
62 AbiData { abi: Abi::Thiscall { unwind: true }, name: "thiscall-unwind" },
63 AbiData { abi: Abi::Aapcs { unwind: false }, name: "aapcs" },
64 AbiData { abi: Abi::Aapcs { unwind: true }, name: "aapcs-unwind" },
65 AbiData { abi: Abi::Win64 { unwind: false }, name: "win64" },
66 AbiData { abi: Abi::Win64 { unwind: true }, name: "win64-unwind" },
67 AbiData { abi: Abi::SysV64 { unwind: false }, name: "sysv64" },
68 AbiData { abi: Abi::SysV64 { unwind: true }, name: "sysv64-unwind" },
69 AbiData { abi: Abi::PtxKernel, name: "ptx-kernel" },
70 AbiData { abi: Abi::Msp430Interrupt, name: "msp430-interrupt" },
71 AbiData { abi: Abi::X86Interrupt, name: "x86-interrupt" },
72 AbiData { abi: Abi::AmdGpuKernel, name: "amdgpu-kernel" },
73 AbiData { abi: Abi::EfiApi, name: "efiapi" },
74 AbiData { abi: Abi::AvrInterrupt, name: "avr-interrupt" },
75 AbiData { abi: Abi::AvrNonBlockingInterrupt, name: "avr-non-blocking-interrupt" },
76 AbiData { abi: Abi::CCmseNonSecureCall, name: "C-cmse-nonsecure-call" },
77 AbiData { abi: Abi::Wasm, name: "wasm" },
78 AbiData { abi: Abi::System { unwind: false }, name: "system" },
79 AbiData { abi: Abi::System { unwind: true }, name: "system-unwind" },
80 AbiData { abi: Abi::RustIntrinsic, name: "rust-intrinsic" },
81 AbiData { abi: Abi::RustCall, name: "rust-call" },
82 AbiData { abi: Abi::PlatformIntrinsic, name: "platform-intrinsic" },
83 AbiData { abi: Abi::Unadjusted, name: "unadjusted" },
86 /// Returns the ABI with the given name (if any).
87 pub fn lookup(name: &str) -> Option<Abi> {
88 AbiDatas.iter().find(|abi_data| name == abi_data.name).map(|&x| x.abi)
91 pub fn all_names() -> Vec<&'static str> {
92 AbiDatas.iter().map(|d| d.name).collect()
96 /// Default ABI chosen for `extern fn` declarations without an explicit ABI.
97 pub const FALLBACK: Abi = Abi::C { unwind: false };
100 pub fn index(self) -> usize {
101 // N.B., this ordering MUST match the AbiDatas array above.
102 // (This is ensured by the test indices_are_correct().)
105 // Cross-platform ABIs
107 C { unwind: false } => 1,
108 C { unwind: true } => 2,
109 // Platform-specific ABIs
110 Cdecl { unwind: false } => 3,
111 Cdecl { unwind: true } => 4,
112 Stdcall { unwind: false } => 5,
113 Stdcall { unwind: true } => 6,
114 Fastcall { unwind: false } => 7,
115 Fastcall { unwind: true } => 8,
116 Vectorcall { unwind: false } => 9,
117 Vectorcall { unwind: true } => 10,
118 Thiscall { unwind: false } => 11,
119 Thiscall { unwind: true } => 12,
120 Aapcs { unwind: false } => 13,
121 Aapcs { unwind: true } => 14,
122 Win64 { unwind: false } => 15,
123 Win64 { unwind: true } => 16,
124 SysV64 { unwind: false } => 17,
125 SysV64 { unwind: true } => 18,
127 Msp430Interrupt => 20,
132 AvrNonBlockingInterrupt => 25,
133 CCmseNonSecureCall => 26,
135 // Cross-platform ABIs
136 System { unwind: false } => 28,
137 System { unwind: true } => 29,
140 PlatformIntrinsic => 32,
147 .find(|(_, AbiData { abi, .. })| *abi == self)
148 .map(|(index, _)| index)
149 .expect("abi variant has associated data")
151 "Abi index did not match `AbiDatas` ordering"
157 pub fn data(self) -> &'static AbiData {
158 &AbiDatas[self.index()]
161 pub fn name(self) -> &'static str {
166 impl fmt::Display for Abi {
167 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
169 abi => write!(f, "\"{}\"", abi.name()),