https://sourceware.org/bugzilla/show_bug.cgi?id=25612
Bug ID: 25612
Summary: -gdwarf-{3,4,5} command line arguments
Product: binutils
Version: 2.35 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: ndesaulniers at google dot com
Target Milestone: ---
Playing around with dwarf-5, I notices that GNU as has the command line flag
-gdwarf-2, but no equivalents for DWARF 3, 4, or 5. It looks like `gcc
-gwarf-5` will set the second value in the .debug_info section to the dwarf
version? I haven't put thought into what version should be preferred if BOTH
the command line version AND assembly specify differing versions.
The Linux kernel has a lot of out of line assembly, and I'm not sure it sets
the dwarf version correctly, though maybe that's something just to be fixed per
file than via global assembler flag.
Thoughts on implementing -gdwarf-{3,4,5} in GNU as? This would match the
behavior of `gcc -gdwarf-{3,4,5}` and `clang -gdwarf-{3,4,5}`.
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