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cmd/link: remove reading/processing of function Autom records

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Remove linker reading and processing of automs (no longer needed, now
that the compiler is emitting R_USETYPE relocations on functions). So
as to avoid changing the object file format, the object still contains
a count of automs, but this count is required to be zero.

Updates #34554.

Change-Id: I10230e191057c5c5705541eeb06f747d5f73c42d
Reviewed-on: https://go-review.googlesource.com/c/go/+/197500
Reviewed-by: Jeremy Faller <jeremy@golang.org>
This commit is contained in:
Than McIntosh 2019-09-26 10:01:42 -04:00
parent cdd59205c4
commit 70a1efbb5c
4 changed files with 3 additions and 67 deletions
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6
src/cmd/link/internal/ld/deadcode.go
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@ -270,12 +270,6 @@ func (d *deadcodepass) flood() {
if d.ctxt.Debugvlog > 1 {
d.ctxt.Logf("marktext %s\n", s.Name)
}
if s.FuncInfo != nil {
for _, a := range s.FuncInfo.Autom {
d.mark(a.Gotype, s)
}
}
}
if strings.HasPrefix(s.Name, "type.") && s.Name[5] != '.' {