Strip debug info from the release binary (-s -w)#333
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The binary is built and shipped unstripped, so releases carry the full symbol and DWARF tables. Adding -s -w to the existing -ldflags drops the .symtab/.strtab and .debug_* sections and shrinks the amd64 binary by ~29% (locally: 140.1 MB -> 99.8 MB) without touching any functional section: .text, .gopclntab and .rodata are byte-identical, so runtime panic stack traces remain symbolized. The only thing lost is attaching gdb/delve to the shipped binary, which needs DWARF. The -X version injection still works alongside -s -w (verified with --version on the resulting binary). Refs coroot#249 Signed-off-by: Gaál György <gb12335@gmail.com>
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What
Add
-s -wto the build-ldflagsso the shipped binary no longer carries the full symbol and DWARF tables.Why
Related to #249. The binary is currently built and released unstripped (
filereportswith debug_info, not stripped), so every release ships the.symtab/.strtaband.debug_*sections.This doesn't fix the underlying growth from the
cilium/ciliumbump (that's genuinely more compiled code —.text/.gopclntab/.rodata), but it's a cheap, low-risk win on the packaging side.Verification
Built current
maintwice (Go 1.24.9), identical flags except-s -w:file-ldflagsnot stripped+ -s -wstripped(-28.8%)Section diff — only debug/symbol tables are removed, no functional section is touched:
Checked on the resulting binary:
--versionprints the injected version, so-ldflags -Xstill works alongside-s -w;--helpparses fine;.gopclntabis retained, so runtime panic stack traces stay symbolized.The only capability lost is attaching gdb/delve to the shipped binary (those need DWARF).