Hi,
I am currently investigating porting rust to a new target (opus3). The target exists in an out of tree LLVM fork.
So far so good until this error occurs:
failed: target architecture "opus3" does not support extern "C" ABI
I am on Windows, anybody has an idea what is missing?
Here is the full command and logs:
c:\git\sdt_rust>python x.py build --host x86_64-pc-windows-msvc --target opus3-octasic-opuskernel
Updating only changed submodules
Submodules updated in 0.06 seconds
Building rustbuild
Finished dev [unoptimized] target(s) in 0.39s
Building stage0 std artifacts (x86_64-pc-windows-msvc -> x86_64-pc-windows-msvc)
Finished release [optimized] target(s) in 0.67s
Copying stage0 std from stage0 (x86_64-pc-windows-msvc -> x86_64-pc-windows-msvc / x86_64-pc-windows-msvc)
Building stage0 compiler artifacts (x86_64-pc-windows-msvc -> x86_64-pc-windows-msvc)
Finished release [optimized] target(s) in 1.47s
Copying stage0 rustc from stage0 (x86_64-pc-windows-msvc -> x86_64-pc-windows-msvc / x86_64-pc-windows-msvc)
Assembling stage1 compiler (x86_64-pc-windows-msvc)
Building stage1 std artifacts (x86_64-pc-windows-msvc -> opus3-octasic-opuskernel)
Compiling core v0.0.0 (C:\git\sdt_rust\library\core)
Compiling rustc-std-workspace-core v1.99.0 (C:\git\sdt_rust\library\rustc-std-workspace-core)
Compiling compiler_builtins v0.1.73
Compiling libc v0.2.126
Compiling alloc v0.0.0 (C:\git\sdt_rust\library\alloc)
Compiling cfg-if v0.1.10
Compiling adler v0.2.3
Compiling memchr v2.4.1
Compiling rustc-demangle v0.1.21
Compiling unwind v0.0.0 (C:\git\sdt_rust\library\unwind)
error: internal compiler error: compiler\rustc_codegen_llvm\src\context.rs:1004:21: fn_abi_of_instance(memcpy, []) failed: target architecture "opus3" does not support extern "C" ABI
--> C:\Users\frpic.cargo\registry\src\github.com-1ecc6299db9ec823\compiler_builtins-0.1.73\src\macros.rs:296:9
|
61 | / macro_rules! intrinsics {
62 | | () => ();
63 | |
64 | | // Support cfg_attr:
... |
296 | | pub unsafe extern $abi fn $name( $($argname: $ty),* ) $(-> $ret)? {
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
... |
424 | | );
425 | | }
| |__- in this expansion of intrinsics!
|
::: C:\Users\frpic.cargo\registry\src\github.com-1ecc6299db9ec823\compiler_builtins-0.1.73\src\mem\mod.rs:22:1
|
22 | / intrinsics! {
23 | | #[mem_builtin]
24 | | #[cfg_attr(not(all(target_os = "windows", target_env = "gnu")), linkage = "weak")]
25 | | pub unsafe extern "C" fn memcpy(dest: *mut u8, src: *const u8, n: usize) -> *mut u8 {
... |
82 | | }
83 | | }
| |_- in this macro invocation