uce/site/doc/pages/backtrace_capture.txt
2026-06-16 23:02:45 +00:00

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:sig
String backtrace_capture(u32 max_frames = 32, u32 skip_frames = 0)
:params
max_frames : maximum number of frames to capture
skip_frames : number of newest frames to omit
return value : formatted backtrace string
:see
>runtime
backtrace_get_frames
signal_name
:content
Captures and formats a native backtrace for the current call stack.
This helper is for diagnostics. It is used by runtime error reporting paths and can also be useful in local debugging pages.
Example:
:example
String trace = backtrace_capture();
print(trace == "" ? "(empty in the wasm sandbox; populated by the native crash handler)" : trace, "\n");