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Fix skipping dead DWARF records #179

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Merged
sunfishcode merged 1 commit into from
Jun 26, 2019
Merged

Fix skipping dead DWARF records #179

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10 changes: 5 additions & 5 deletions wasmtime-debug/src/transform.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -515,22 +515,22 @@ where
};
let mut skip_at_depth = None;
while let Some((depth_delta, entry)) = entries.next_dfs()? {
let depth_delta = if let Some(depth) = skip_at_depth {
let depth_delta = if let Some((depth, cached)) = skip_at_depth {
let new_depth = depth + depth_delta;
if new_depth >= 0 {
skip_at_depth = Some(new_depth);
if new_depth > 0 {
skip_at_depth = Some((new_depth, cached));
continue;
}
skip_at_depth = None;
new_depth
new_depth + cached
} else {
depth_delta
};
let range = if entry.tag() == gimli::DW_TAG_subprogram {
let range = get_subprogram_range(entry, addr_tr)?;
if range.is_none() {
// Subprogram was not compiled: discarding all its info.
skip_at_depth = Some(0);
skip_at_depth = Some((0, depth_delta));
continue;
}
range
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