[Bug ld/29393] New: Option to emit .debug_info CU version 4

[jengelh at inai dot de]

https://sourceware.org/bugzilla/show_bug.cgi?id=29393

            Bug ID: 29393
           Summary: Option to emit .debug_info CU version 4
           Product: binutils
           Version: 2.38
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: jengelh at inai dot de
  Target Milestone: ---

$ ld -v
GNU ld (GNU Binutils; openSUSE Tumbleweed) 2.38.20220525-6
$ echo 'int main(){}' >x.c
$ gcc x.c -g
$ objdump -W a.out
[...]
Contents of the .debug_info section:

  Compilation Unit @ offset 0x0:
   Length:        0x24 (32-bit)
   Version:       5
   Unit Type:     DW_UT_compile (1)
   Abbrev Offset: 0x0
   Pointer Size:  8

I did not find an option to emit v4 CUs. gcc's -gdwarf-4 option has no effect
in that regard, either.

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