[libc] [lld] [clang] [libunwind] [compiler-rt] [flang] [lldb] [openmp] [libcxx] [mlir] [llvm] [pstl] [clang-tools-extra] [ELF] Don't resolve relocations referencing SHN_ABS to tombstone in non-SHF_ALLOC sections (PR #79238)

[Fangrui Song via cfe-commits]

MaskRay wrote:

Fixed a typo and added an example

> ```
> // clang -g
> __attribute__((weak)) int symbol;
> int *foo() { return &symbol; }
> 
> 0x00000023:   DW_TAG_variable [2]   (0x0000000c)
>                 ...
>                 DW_AT_location [DW_FORM_exprloc]        (DW_OP_addrx 0x0)
> ```
>   
> 
> .debug_addr references `symbol`, which can be redefined by a symbol
> assignment or --defsym to become a SHN_ABS symbol.



https://github.com/llvm/llvm-project/pull/79238
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