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cmd/internal/obj/loong64: return an error when getting address of tls variable

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The tls variable is thread local variable, an operation to get its address
is not supported, so we should return an error here.

Change-Id: Ia6a637f549cb886fdb643bdc04eeb269849d1096
Reviewed-on: https://go-review.googlesource.com/c/go/+/565621
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
This commit is contained in:
limeidan 2024-01-11 10:48:12 +08:00 committed by abner chenc
parent 1ef6b2805e
commit 44663f333b
3 changed files with 1 additions and 24 deletions
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1
src/cmd/internal/obj/loong64/a.out.go
View File

@ -213,7 +213,6 @@ const (
C_LACON // $n(REG) where int12 < n <= int32
C_LECON
C_DACON // $n(REG) where int32 < n
C_STCON // $tlsvar
C_SBRA
C_LBRA
C_SAUTO

23
src/cmd/internal/obj/loong64/asm.go
View File

@ -204,8 +204,6 @@ var optab = []Optab{
{AMOVV, C_ADDCON, C_NONE, C_NONE, C_REG, C_NONE, 3, 4, REGZERO, 0},
{AMOVW, C_ANDCON, C_NONE, C_NONE, C_REG, C_NONE, 3, 4, REGZERO, 0},
{AMOVV, C_ANDCON, C_NONE, C_NONE, C_REG, C_NONE, 3, 4, REGZERO, 0},
{AMOVW, C_STCON, C_NONE, C_NONE, C_REG, C_NONE, 55, 12, 0, 0},
{AMOVV, C_STCON, C_NONE, C_NONE, C_REG, C_NONE, 55, 12, 0, 0},
{AMOVW, C_UCON, C_NONE, C_NONE, C_REG, C_NONE, 24, 4, 0, 0},
{AMOVV, C_UCON, C_NONE, C_NONE, C_REG, C_NONE, 24, 4, 0, 0},
@ -759,7 +757,7 @@ func (c *ctxt0) aclass(a *obj.Addr) int {
c.instoffset = a.Offset
if s.Type == objabi.STLSBSS {
return C_STCON // address of TLS variable
c.ctxt.Diag("taking address of TLS variable is not supported")
}
return C_LECON
@ -1770,25 +1768,6 @@ func (c *ctxt0) asmout(p *obj.Prog, o *Optab, out []uint32) {
o3 = OP_RRR(c.oprrr(AADDV), uint32(REG_R2), uint32(REGTMP), uint32(REGTMP))
o4 = OP_12IRR(c.opirr(-p.As), uint32(0), uint32(REGTMP), uint32(p.To.Reg))
case 55: // lu12i.w + ori + add r2, regtmp
// NOTE: this case does not use REGTMP. If it ever does,
// remove the NOTUSETMP flag in optab.
o1 = OP_IR(c.opir(ALU12IW), uint32(0), uint32(REGTMP))
rel := obj.Addrel(c.cursym)
rel.Off = int32(c.pc)
rel.Siz = 4
rel.Sym = p.From.Sym
rel.Add = p.From.Offset
rel.Type = objabi.R_LOONG64_TLS_LE_HI
o2 = OP_12IRR(c.opirr(AOR), uint32(0), uint32(REGTMP), uint32(REGTMP))
rel2 := obj.Addrel(c.cursym)
rel2.Off = int32(c.pc + 4)
rel2.Siz = 4
rel2.Sym = p.From.Sym
rel2.Add = p.From.Offset
rel2.Type = objabi.R_LOONG64_TLS_LE_LO
o3 = OP_RRR(c.oprrr(AADDV), uint32(REG_R2), uint32(REGTMP), uint32(p.To.Reg))
case 56: // mov r, tlsvar IE model ==> (pcalau12i + ld.d)tlsvar@got + add.d + st.d
o1 = OP_IR(c.opir(APCALAU12I), uint32(0), uint32(REGTMP))
rel := obj.Addrel(c.cursym)

1
src/cmd/internal/obj/loong64/cnames.go
View File

@ -25,7 +25,6 @@ var cnames0 = []string{
"LACON",
"LECON",
"DACON",
"STCON",
"SBRA",
"LBRA",
"SAUTO",