Jinjie Huang 4c44dcffd5

Support soft failure on DWP section overflow, producing a truncated but valid DWP(#71902) ...

When 'ContinueOnCuIndexOverflow' enables without this modification, the
forcibly generated '.dwp' won't be recognized by Debugger(gdb 10.1)
correctly.
<img width="657" alt="image"
src="https://github.com/llvm/llvm-project/assets/150100070/31732775-2548-453a-a47a-fa04c6d05fe9">
it looks like there's a problem with processing the dwarf header, which
makes debugging completely impossible. (unless the consumer walks the debug_info section to rebuild that column (if that's the only section that overflowed - if it's another section, there's no recovery))

**About patch:**
When llvm-dwp enables option '--continue-on-cu-index-overflow=soft-stop'
and recognizes the overflow problem , it will stop packing and generate
the '.dwp' file at once, discarding any DWO files that would not fit
within the 32 bit/4GB limits of the format.
<img width="625" alt="image"
src="https://github.com/llvm/llvm-project/assets/150100070/77d6be24-262b-4f4c-afc0-9a6c49e133c7">

2023-12-01 12:01:22 -08:00

..

CMakeLists.txt

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DWP.cpp

Support soft failure on DWP section overflow, producing a truncated but valid DWP(#71902)

2023-12-01 12:01:22 -08:00

DWPError.cpp

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