33add367e2
The `gpu-kernel` calling convention has several restrictions that were not enforced by the compiler until now. Add the following restrictions: 1. Cannot be async 2. Cannot be called 3. Cannot return values, return type must be `()` or `!` 4. Arguments should be primitives, i.e. passed by value. More complicated types can work when you know what you are doing, but it is rather unintuitive, one needs to know ABI/compiler internals. 5. Export name should be unmangled, either through `no_mangle` or `export_name`. Kernels are searched by name on the CPU side, having a mangled name makes it hard to find and probably almost always unintentional.
87 lines
2.7 KiB
Text
87 lines
2.7 KiB
Text
error[E0570]: "msp430-interrupt" is not a supported ABI for the current target
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--> $DIR/cannot-be-called.rs:43:8
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LL | extern "msp430-interrupt" fn msp430() {}
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| ^^^^^^^^^^^^^^^^^^
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error[E0570]: "avr-interrupt" is not a supported ABI for the current target
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--> $DIR/cannot-be-called.rs:45:8
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LL | extern "avr-interrupt" fn avr() {}
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| ^^^^^^^^^^^^^^^
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error[E0570]: "riscv-interrupt-m" is not a supported ABI for the current target
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--> $DIR/cannot-be-called.rs:47:8
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LL | extern "riscv-interrupt-m" fn riscv_m() {}
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| ^^^^^^^^^^^^^^^^^^^
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error[E0570]: "riscv-interrupt-s" is not a supported ABI for the current target
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--> $DIR/cannot-be-called.rs:49:8
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LL | extern "riscv-interrupt-s" fn riscv_s() {}
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| ^^^^^^^^^^^^^^^^^^^
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error[E0570]: "x86-interrupt" is not a supported ABI for the current target
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--> $DIR/cannot-be-called.rs:51:8
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LL | extern "x86-interrupt" fn x86(_x: *const u8) {}
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| ^^^^^^^^^^^^^^^
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error[E0570]: "avr-interrupt" is not a supported ABI for the current target
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--> $DIR/cannot-be-called.rs:76:22
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LL | fn avr_ptr(f: extern "avr-interrupt" fn()) {
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| ^^^^^^^^^^^^^^^
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error[E0570]: "msp430-interrupt" is not a supported ABI for the current target
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--> $DIR/cannot-be-called.rs:82:25
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LL | fn msp430_ptr(f: extern "msp430-interrupt" fn()) {
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| ^^^^^^^^^^^^^^^^^^
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error[E0570]: "riscv-interrupt-m" is not a supported ABI for the current target
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--> $DIR/cannot-be-called.rs:88:26
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LL | fn riscv_m_ptr(f: extern "riscv-interrupt-m" fn()) {
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| ^^^^^^^^^^^^^^^^^^^
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error[E0570]: "riscv-interrupt-s" is not a supported ABI for the current target
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--> $DIR/cannot-be-called.rs:94:26
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LL | fn riscv_s_ptr(f: extern "riscv-interrupt-s" fn()) {
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| ^^^^^^^^^^^^^^^^^^^
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error[E0570]: "x86-interrupt" is not a supported ABI for the current target
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--> $DIR/cannot-be-called.rs:100:22
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LL | fn x86_ptr(f: extern "x86-interrupt" fn()) {
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| ^^^^^^^^^^^^^^^
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error: functions with the "gpu-kernel" ABI cannot be called
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--> $DIR/cannot-be-called.rs:70:5
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LL | gpu_kernel();
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| ^^^^^^^^^^^^
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note: an `extern "gpu-kernel"` function must be launched on the GPU by the runtime
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--> $DIR/cannot-be-called.rs:70:5
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LL | gpu_kernel();
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| ^^^^^^^^^^^^
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error: functions with the "gpu-kernel" ABI cannot be called
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--> $DIR/cannot-be-called.rs:108:5
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LL | f()
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| ^^^
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note: an `extern "gpu-kernel"` function must be launched on the GPU by the runtime
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--> $DIR/cannot-be-called.rs:108:5
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LL | f()
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| ^^^
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error: aborting due to 12 previous errors
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For more information about this error, try `rustc --explain E0570`.
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