Bug 27434

Summary:	[dwz, dwarf5] .debug_str_offsets support
Product:	dwz	Reporter:	Mark Wielaard <mark>
Component:	default	Assignee:	Nobody <nobody>
Status:	NEW ---
Severity:	enhancement	CC:	dwz, sam, vries, yumeyao
Priority:	P2
Version:	unspecified
Target Milestone:	---
Host:		Target:
Build:		Last reconfirmed:
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Bug Depends on:
Bug Blocks:	24726

Description Mark Wielaard 2021-02-18 14:42:21 UTC

Handle DW_FORM_strx[1234] and .debug_str_offsets, DW_AT_str_offsets_base

Note that DW_FORM_strx can also be used in .debug_macro

It is also allowed in vendor-defined content descriptions of .debug_line (but the spec is a little ambiguous on whether that is only allowed in .debug_line.dwo, or also in regular .debug_line content descriptions.

I don't believe any producer currently uses them in .debug_macro or .debug_line though, so for now that can probably be ignored.

Comment 1 YumeYao 2025-09-01 08:19:43 UTC

I can confirm recent clang/llvm are taking use of .debug_str_offsets and dwz fails with binaries with this section:

dwz: xxxx: Unknown debugging section .debug_str_offsets