| commit | ba9c639470cb962a799116fea55c91638752fe87 | [log] [tgz] |
|---|---|---|
| author | Jeremy Faller <jeremy@golang.org> | Wed Jun 24 14:30:16 2020 -0400 |
| committer | Jeremy Faller <jeremy@golang.org> | Thu Jul 30 19:36:06 2020 +0000 |
| tree | 2fecdbd49216a01f2ed5d070c5755bf3a6fa80ec | |
| parent | b3e3c339ff02ccd1cf76eb07513e4f9051a55333 [diff] |
[dev.link] cmd/link: add runtime.pcheader As of July 2020, a fair amount of the new linker's live memory, and runtime is spent generating pclntab. In an effort to streamline that code, this change starts breaking up the generation of runtime.pclntab into smaller chunks that can run later in a link. These changes are described in an (as yet not widely distributed) document that lays out an improved format. Largely the work consists of breaking up runtime.pclntab into smaller pieces, stopping much of the data rewriting, and getting runtime.pclntab into a form where we can reason about its size and look to shrink it. This change is the first part of that work -- just pulling out the header, and demonstrating where a majority of that work will be. Change-Id: I65618d0d0c780f7e5977c9df4abdbd1696fedfcb Reviewed-on: https://go-review.googlesource.com/c/go/+/241598 Run-TryBot: Jeremy Faller <jeremy@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Austin Clements <austin@google.com>
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