https://bugs.llvm.org/show_bug.cgi?id=40532
Bug ID: 40532
Summary: Corrupt DWARF created when linking with ld.lld
Product: lld
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: ELF
Assignee: unassignedb...@nondot.org
Reporter: jonasschiev...@gmail.com
CC: llvm-bugs@lists.llvm.org, peter.sm...@linaro.org
Linking two object files together (created by rustc and gcc) results in an
output with corrupt debug info.
Running `objdump --dwarf-check -g <output>` on the linker output reports this
warning a few times:
objdump: Warning: Corrupt unit length (0x0) found in section .debug_info
When run on the object files before linking, no warning is issued. The
dwarf-validate tool of the gimli library agrees with this
(https://github.com/gimli-rs/gimli).
I've attached the output of LLD with --reproduce.
For more info, refer to
https://github.com/jonas-schievink/lldbug/releases/tag/lldrepro-min (but
lldrepro-min should already contain everything if I understood it correctly).
LLD version: LLD 7.0.1
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