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cmd/compile, cmd/link: stop generating unused go.string.hdr symbols.

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name       old s/op    new s/op    delta
LinkCmdGo   0.29 ± 5%   0.29 ± 8%  -2.60%   (p=0.000 n=97+98)

name       old MaxRSS  new MaxRSS  delta
LinkCmdGo   106k ± 4%   105k ± 3%  -1.00%  (p=0.000 n=100+99)

Change-Id: I75a1c3b24ea711a15a5d2eae026b70b97ee7bad4
Reviewed-on: https://go-review.googlesource.com/31030
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
This commit is contained in:
shaharko 2016-10-13 22:31:46 +03:00 • committed by Shahar Kohanim
parent 0017438139
commit 80a034642e
7 changed files with 23 additions and 71 deletions
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18
src/cmd/internal/obj/link.go
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@ -393,7 +393,6 @@ const (
STYPE
SSTRING
SGOSTRING
SGOSTRINGHDR
SGOFUNC
SGCBITS
SRODATA
@ -417,7 +416,6 @@ const (
STYPERELRO
SSTRINGRELRO
SGOSTRINGRELRO
SGOSTRINGHDRRELRO
SGOFUNCRELRO
SGCBITSRELRO
SRODATARELRO
@ -466,7 +464,6 @@ var ReadOnly = []SymKind{
STYPE,
SSTRING,
SGOSTRING,
SGOSTRINGHDR,
SGOFUNC,
SGCBITS,
SRODATA,
@ -476,14 +473,13 @@ var ReadOnly = []SymKind{
// RelROMap describes the transformation of read-only symbols to rel-ro
// symbols.
var RelROMap = map[SymKind]SymKind{
STYPE: STYPERELRO,
SSTRING: SSTRINGRELRO,
SGOSTRING: SGOSTRINGRELRO,
SGOSTRINGHDR: SGOSTRINGHDRRELRO,
SGOFUNC: SGOFUNCRELRO,
SGCBITS: SGCBITSRELRO,
SRODATA: SRODATARELRO,
SFUNCTAB: SFUNCTABRELRO,
STYPE: STYPERELRO,
SSTRING: SSTRINGRELRO,
SGOSTRING: SGOSTRINGRELRO,
SGOFUNC: SGOFUNCRELRO,
SGCBITS: SGCBITSRELRO,
SRODATA: SRODATARELRO,
SFUNCTAB: SFUNCTABRELRO,
}
type Reloc struct {