| commit | d1a186d29ce9d917dda7c66cfaee7788f88e7b9e | [log] [tgz] |
|---|---|---|
| author | Than McIntosh <thanm@google.com> | Fri Jun 12 09:04:28 2020 -0400 |
| committer | Than McIntosh <thanm@google.com> | Wed Jun 17 12:33:29 2020 +0000 |
| tree | 768e2a9be464a2b6b01b5879a54907de91918138 | |
| parent | 0fb1517b3f0b643570d554ea66d5e6884fb0343e [diff] |
[dev.link] cmd/link: parallelize second-stage DWARF generation This patch introduces parallelization of DWARF generation on a per compilation unit basis. Each compilation unit now operates on a separate set of symbols, so it's safe to send each compilation unit to a goroutine to be processed in parallel. Doing this requires some restructing to ensure that any new symbols needed are created up front, since we can't create any new syms during the parallel portion. Similarly, the parallel portion can't set any symbol attributes, so the check that verifies we haven't doubly listed any DIE syms had to be reworked, and setting of reachability has to be delayed until after the parallel phase is complete. Change-Id: I3042b76e9b597bb1a6a44dce19efba2d02bed76b Reviewed-on: https://go-review.googlesource.com/c/go/+/237679 Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Jeremy Faller <jeremy@golang.org>
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