vtjnash wrote:
I think, from reading the code, that currently the only way to do that would be
to guess at the internal name and then define an alias that prevents the
compiler from creating the function using CreateRuntimeFunction call:
```c++
extern "C" {
static void fake__C_specific_handler(...);
static void __C_specific_handler(...)
__attribute__((alias("fake__C_specific_handler")));
}
```
To intercept this call:
```c++
static llvm::FunctionCallee getPersonalityFn(CodeGenModule &CGM,
const EHPersonality &Personality) {
return CGM.CreateRuntimeFunction(llvm::FunctionType::get(CGM.Int32Ty, true),
Personality.PersonalityFn,
llvm::AttributeList(), /*Local=*/true);
}
```
https://github.com/llvm/llvm-project/pull/176952
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