[lld] [llvm] [Symbolizer] Support for Missing Line Numbers. (PR #82240)

[via llvm-commits]

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@@ -216,6 +224,12 @@ OPTIONS
   This can be used to perform lookups as if the object were relocated by the
   offset.
 
+.. option:: --approximate-line
+
+  Print the approximate non-zero line number that is nearest to before an
+  input address. Nearest lookup is performed by querying the line-table
+  structure for an address having non-zero line information in close proximity.
+
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bd1976bris wrote:

I think that this can be simplified. I suggest:

> If an address does not have an associated line number, use the last
> line number from the current sequence in the line-table. Such lines
> are labeled as "approximate" in the output as they may be misleading.


https://github.com/llvm/llvm-project/pull/82240