https://bugs.llvm.org/show_bug.cgi?id=42735
Bug ID: 42735
Summary: Properly handle 640-bit DWARF .debug_line sections
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: DebugInfo
Assignee: unassignedb...@nondot.org
Reporter: jh7370.2...@my.bristol.ac.uk
CC: jdevliegh...@apple.com, keith.wal...@arm.com,
llvm-bugs@lists.llvm.org,
paul_robin...@playstation.sony.com
The DWARFDebugLine LineTable parse functionality is decidedly mixed as to its
support for 64-bit line tables. The prologue parser understands DWARF64, and
the prologue's fields are appropriately uint64_t in size. However, the offset
pointer passed around is only a uint32_t one, as are various related variables
e.g. EndOffset and DebugLineOffset in LineTable::parse, which means that you'll
get weird behaviour if we ever actually exercise the parser on a large section.
We should fix this by updating the DataExtractor class to work with uint64_t
sizes, and updating all our offset variables in this file (including the PRIx32
printing of them).
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