build: attempt at reproducible builds (#30321)

This PR implements the conclusions from
https://github.com/ethereum/go-ethereum/issues/28987#issuecomment-2296075028,
that is:

Building with `--strip-all` as a ld-flag to the cgo linker, to remove
symbols. Without that, some spurious reference to a temporary file is
included into the kzg-related library.

Building with `--build-id=none`, to avoid putting a `build id` into the file.
This commit is contained in:
Martin HS 2024-08-20 15:33:28 +02:00 committed by GitHub
parent fc88cea648
commit 693e40a495
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@ -249,7 +249,11 @@ func buildFlags(env build.Environment, staticLinking bool, buildTags []string) (
if runtime.GOOS == "linux" {
// Enforce the stacksize to 8M, which is the case on most platforms apart from
// alpine Linux.
extld := []string{"-Wl,-z,stack-size=0x800000"}
// See https://sourceware.org/binutils/docs-2.23.1/ld/Options.html#Options
// regarding the options --build-id=none and --strip-all. It is needed for
// reproducible builds; removing references to temporary files in C-land, and
// making build-id reproducably absent.
extld := []string{"-Wl,-z,stack-size=0x800000,--build-id=none,--strip-all"}
if staticLinking {
extld = append(extld, "-static")
// Under static linking, use of certain glibc features must be