https://sourceware.org/bugzilla/show_bug.cgi?id=31884
Bug ID: 31884
Summary: Compressed .strtab and .symtab
Product: binutils
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: i at maskray dot me
Target Milestone: ---
In ELF executables and DSOs, .symtab and .strtab sections can consume a
significant portion of the file size (10+% or even 20+%). In many scenarios, we
cannot remove them due to symbolizers (crash reporters, Linux perf, etc) and
other analysis tools.
When .gnu_debugdata (MiniDebugInfo) is used, the separate debug files contain
.symtab/.strtab.
The standard SHF_COMPRESSED feature can be used with non-SHF_ALLOC sections.
It’s natural to compress .symtab and .strtab. This usage doesn't need amendment
to the generic ABI.
* ld/objcopy: If --compress-sections (PR 27452) is supported, just specify:
--compress-sections .strtab=zstd --compress-sections .symtab=zstd
* BFD (nm, objdump, etc): reader support
* readelf: reader support
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