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| author | Cherry Zhang <cherryyz@google.com> | 2019-09-28 22:42:35 -0400 |
|---|---|---|
| committer | Cherry Zhang <cherryyz@google.com> | 2019-10-10 22:05:09 +0000 |
| commit | 8a9be4921a3cc91c80c02bb5b4cf2ad129c0c7cc (patch) | |
| tree | ad2d93eab00815b71026cad0dbac503ba32f8489 /src/cmd/link/internal/ld/deadcode.go | |
| parent | f7659d49be1839314ddc3a8606f8d6b3ce211b6b (diff) | |
| download | go-8a9be4921a3cc91c80c02bb5b4cf2ad129c0c7cc.tar.xz | |
[dev.link] cmd/link: use index for deadcode
Switch the deadcode pass to use indices instead of Symbol
structures when using new object file format. Delay loading
symbol relocations and contents fully after the deadcode pass.
The next step is not to create Symbol structures until deadcode
is done.
Method tracking logic hasn't been implemented. Currently, all
methods of a reachable type are live.
Change-Id: Iffcd06ff84e6e52bd9eb24d1220d94234d18ab6b
Reviewed-on: https://go-review.googlesource.com/c/go/+/198199
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Diffstat (limited to 'src/cmd/link/internal/ld/deadcode.go')
| -rw-r--r-- | src/cmd/link/internal/ld/deadcode.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/cmd/link/internal/ld/deadcode.go b/src/cmd/link/internal/ld/deadcode.go index a024e40dff..d0896fcf2c 100644 --- a/src/cmd/link/internal/ld/deadcode.go +++ b/src/cmd/link/internal/ld/deadcode.go @@ -50,6 +50,11 @@ func deadcode(ctxt *Link) { ctxt.Logf("%5.2f deadcode\n", Cputime()) } + if *flagNewobj { + deadcode2(ctxt) + return + } + d := &deadcodepass{ ctxt: ctxt, ifaceMethod: make(map[methodsig]bool), @@ -118,6 +123,10 @@ func deadcode(ctxt *Link) { } } + addToTextp(ctxt) +} + +func addToTextp(ctxt *Link) { // Remove dead text but keep file information (z symbols). textp := []*sym.Symbol{} for _, s := range ctxt.Textp { |