[dsymutil] Report error when section offsets exceed DWARF32 limit (#1…#12842
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JDevlieghere merged 2 commits intostable/21.xfrom Apr 28, 2026
Merged
[dsymutil] Report error when section offsets exceed DWARF32 limit (#1…#12842JDevlieghere merged 2 commits intostable/21.xfrom
JDevlieghere merged 2 commits intostable/21.xfrom
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…vm#193867) When linking very large binaries, debug section offsets can exceed the 4 GB DWARF32 limit. Previously this caused an assertion in MCStreamer::emitIntValue when trying to emit an overflowing DW_FORM_sec_offset value. Detect the overflow at the point where section offsets are patched in DWARFStreamer (for .debug_ranges, .debug_rnglists, .debug_loc, .debug_loclists) and in DWARFLinker (for .debug_line and .debug_addr). rdar://107413300 (cherry picked from commit ca934b8)
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…93867)
When linking very large binaries, debug section offsets can exceed the 4 GB DWARF32 limit. Previously this caused an assertion in MCStreamer::emitIntValue when trying to emit an overflowing DW_FORM_sec_offset value.
Detect the overflow at the point where section offsets are patched in DWARFStreamer (for .debug_ranges, .debug_rnglists, .debug_loc, .debug_loclists) and in DWARFLinker (for .debug_line and .debug_addr).
rdar://107413300
(cherry picked from commit ca934b8)