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all: remove the nacl port (part 2, amd64p32 + toolchain)

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This is part two if the nacl removal. Part 1 was CL 199499.

This CL removes amd64p32 support, which might be useful in the future
if we implement the x32 ABI. It also removes the nacl bits in the
toolchain, and some remaining nacl bits.

Updates #30439

Change-Id: I2475d5bb066d1b474e00e40d95b520e7c2e286e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/200077
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Brad Fitzpatrick 2019-10-09 16:22:47 +00:00
parent 19a7490e56
commit 07b4abd62e
70 changed files with 387 additions and 4072 deletions
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76
src/cmd/internal/obj/x86/obj6.go
View file

@ -48,7 +48,6 @@ func CanUse1InsnTLS(ctxt *obj.Link) bool {
if ctxt.Arch.Family == sys.I386 {
switch ctxt.Headtype {
case objabi.Hlinux,
objabi.Hnacl,
objabi.Hplan9,
objabi.Hwindows:
return false
@ -208,14 +207,6 @@ func progedit(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) {
}
}
if ctxt.Headtype == objabi.Hnacl && ctxt.Arch.Family == sys.AMD64 {
if p.GetFrom3() != nil {
nacladdr(ctxt, p, p.GetFrom3())
}
nacladdr(ctxt, p, &p.From)
nacladdr(ctxt, p, &p.To)
}
// Rewrite float constants to values stored in memory.
switch p.As {
// Convert AMOVSS $(0), Xx to AXORPS Xx, Xx
@ -568,38 +559,6 @@ func rewriteToPcrel(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) {
obj.Nopout(p)
}
func nacladdr(ctxt *obj.Link, p *obj.Prog, a *obj.Addr) {
if p.As == ALEAL || p.As == ALEAQ {
return
}
if a.Reg == REG_BP {
ctxt.Diag("invalid address: %v", p)
return
}
if a.Reg == REG_TLS {
a.Reg = REG_BP
}
if a.Type == obj.TYPE_MEM && a.Name == obj.NAME_NONE {
switch a.Reg {
// all ok
case REG_BP, REG_SP, REG_R15:
break
default:
if a.Index != REG_NONE {
ctxt.Diag("invalid address %v", p)
}
a.Index = a.Reg
if a.Index != REG_NONE {
a.Scale = 1
}
a.Reg = REG_R15
}
}
}
func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
if cursym.Func.Text == nil || cursym.Func.Text.Link == nil {
return
@ -762,13 +721,6 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
p.From.Offset = 4 * int64(ctxt.Arch.PtrSize) // g_panic
p.To.Type = obj.TYPE_REG
p.To.Reg = REG_BX
if ctxt.Headtype == objabi.Hnacl && ctxt.Arch.Family == sys.AMD64 {
p.As = AMOVL
p.From.Type = obj.TYPE_MEM
p.From.Reg = REG_R15
p.From.Scale = 1
p.From.Index = REG_CX
}
if ctxt.Arch.Family == sys.I386 {
p.As = AMOVL
}
@ -780,7 +732,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
p.From.Reg = REG_BX
p.To.Type = obj.TYPE_REG
p.To.Reg = REG_BX
if ctxt.Headtype == objabi.Hnacl || ctxt.Arch.Family == sys.I386 {
if ctxt.Arch.Family == sys.I386 {
p.As = ATESTL
}
@ -807,7 +759,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
p.From.Offset = int64(autoffset) + int64(ctxt.Arch.RegSize)
p.To.Type = obj.TYPE_REG
p.To.Reg = REG_DI
if ctxt.Headtype == objabi.Hnacl || ctxt.Arch.Family == sys.I386 {
if ctxt.Arch.Family == sys.I386 {
p.As = ALEAL
}
@ -822,13 +774,6 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
p.From.Offset = 0 // Panic.argp
p.To.Type = obj.TYPE_REG
p.To.Reg = REG_DI
if ctxt.Headtype == objabi.Hnacl && ctxt.Arch.Family == sys.AMD64 {
p.As = ACMPL
p.From.Type = obj.TYPE_MEM
p.From.Reg = REG_R15
p.From.Scale = 1
p.From.Index = REG_BX
}
if ctxt.Arch.Family == sys.I386 {
p.As = ACMPL
}
@ -847,13 +792,6 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
p.To.Type = obj.TYPE_MEM
p.To.Reg = REG_BX
p.To.Offset = 0 // Panic.argp
if ctxt.Headtype == objabi.Hnacl && ctxt.Arch.Family == sys.AMD64 {
p.As = AMOVL
p.To.Type = obj.TYPE_MEM
p.To.Reg = REG_R15
p.To.Scale = 1
p.To.Index = REG_BX
}
if ctxt.Arch.Family == sys.I386 {
p.As = AMOVL
}
@ -988,14 +926,6 @@ func isZeroArgRuntimeCall(s *obj.LSym) bool {
}
func indir_cx(ctxt *obj.Link, a *obj.Addr) {
if ctxt.Headtype == objabi.Hnacl && ctxt.Arch.Family == sys.AMD64 {
a.Type = obj.TYPE_MEM
a.Reg = REG_R15
a.Index = REG_CX
a.Scale = 1
return
}
a.Type = obj.TYPE_MEM
a.Reg = REG_CX
}
@ -1040,7 +970,7 @@ func stacksplit(ctxt *obj.Link, cursym *obj.LSym, p *obj.Prog, newprog obj.ProgA
mov := AMOVQ
sub := ASUBQ
if ctxt.Headtype == objabi.Hnacl || ctxt.Arch.Family == sys.I386 {
if ctxt.Arch.Family == sys.I386 {
cmp = ACMPL
lea = ALEAL
mov = AMOVL