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`lfi_invoke_info` is a thread-local variable defined in C (`trampoline.c`). When a C++ caller invokes a sandbox function via `LFI_INVOKE`, accessing `lfi_invoke_info` directly as a C++ `thread_local` causes the compiler to emit a call to a C++ thread-local initialization wrapper that the C runtime never defines, resulting in a link error. Setting the invocation state through `lfi_set_invoke_info` (introduced in 55025e8) avoids referencing the `thread_local` variable at the call site.
zyedidia
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Oct 6, 2026
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That addresses it. Thanks! EDIT: For reference, 7f487c1 |
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lfi_invoke_infois a thread-local variable defined in C (trampoline.c).When a C++ caller invokes a sandbox function via
LFI_INVOKE, accessinglfi_invoke_infodirectly as a C++thread_localcauses the compiler toemit a call to a C++ thread-local initialization wrapper that the C runtime
never defines, resulting in a link error.
Setting the invocation state through
lfi_set_invoke_info(introduced in55025e8) avoids referencing the
thread_localvariable at the call site.