Include debug info for the allocator shim #88550
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Issue Details: In some cases it is necessary to generate an "allocator shim" to forward various Rust allocation functions (e.g., `__rust_alloc`) to an underlying function (e.g., `malloc`). However, since this allocator shim is a manually created LLVM module it is not processed via the normal module processing code and so no debug info is generated for it (if debugging info is enabled). Fix Details: * Modify the `debuginfo` code to allow creating debug info for a module without a `CodegenCx` (since it is difficult, and expensive, to create one just to emit some debug info). * After creating the allocator shim add in basic debug info.
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…o, r=estebank Include debug info for the allocator shim Issue Details: In some cases it is necessary to generate an "allocator shim" to forward various Rust allocation functions (e.g., `__rust_alloc`) to an underlying function (e.g., `malloc`). However, since this allocator shim is a manually created LLVM module it is not processed via the normal module processing code and so no debug info is generated for it (if debugging info is enabled). Fix Details: * Modify the `debuginfo` code to allow creating debug info for a module without a `CodegenCx` (since it is difficult, and expensive, to create one just to emit some debug info). * After creating the allocator shim add in basic debug info.
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Issue Details:
In some cases it is necessary to generate an "allocator shim" to forward various Rust allocation functions (e.g.,
__rust_alloc) to an underlying function (e.g.,malloc). However, since this allocator shim is a manually created LLVM module it is not processed via the normal module processing code and so no debug info is generated for it (if debugging info is enabled).Fix Details:
debuginfocode to allow creating debug info for a module without aCodegenCx(since it is difficult, and expensive, to create one just to emit some debug info).