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Explain the purpose of raw trace information vs minimal object frame info

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Jeremy 2023-11-20 22:49:07 -06:00
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signal-safe-tracing.md
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@ -56,6 +56,14 @@ namespace cpptrace {
}
```
`safe_generate_raw_trace` produces instruction pointers found while unwinding the stack. These addresses are sufficient
information to resolve a stack trace in the currently running process after a signal handler exits, but they aren't
sufficient for resolving outside of the currently running process, unless there is no position-independent code or
shared-library code.
To resolve outside the current process `minimal_object_frame` information is needed. This contains the path to the
object where the address is located as well as the address before address randomization.
# Strategy
Signal-safe tracing can be done three ways: