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[dev.regabi] runtime: delete gosave function

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The runtime.gosave function is not used anywhere. Delete.

Note: there is also a gosave<> function, which is actually used
and not deleted.

Change-Id: I64149a7afdd217de26d1e6396233f2becfad7153
Reviewed-on: https://go-review.googlesource.com/c/go/+/289719
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
This commit is contained in:
Cherry Zhang 2021-02-04 12:59:06 -05:00
parent 946351d5a2
commit 8fa84772ba
10 changed files with 0 additions and 151 deletions
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19
src/runtime/asm_386.s
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@ -273,25 +273,6 @@ TEXT runtime·asminit(SB),NOSPLIT,$0-0
* go-routine
*/
// void gosave(Gobuf*)
// save state in Gobuf; setjmp
TEXT runtime·gosave(SB), NOSPLIT, $0-4
MOVL buf+0(FP), AX // gobuf
LEAL buf+0(FP), BX // caller's SP
MOVL BX, gobuf_sp(AX)
MOVL 0(SP), BX // caller's PC
MOVL BX, gobuf_pc(AX)
MOVL $0, gobuf_ret(AX)
// Assert ctxt is zero. See func save.
MOVL gobuf_ctxt(AX), BX
TESTL BX, BX
JZ 2(PC)
CALL runtime·badctxt(SB)
get_tls(CX)
MOVL g(CX), BX
MOVL BX, gobuf_g(AX)
RET
// void gogo(Gobuf*)
// restore state from Gobuf; longjmp
TEXT runtime·gogo(SB), NOSPLIT, $8-4

20
src/runtime/asm_amd64.s
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@ -254,26 +254,6 @@ TEXT runtime·asminit(SB),NOSPLIT,$0-0
* go-routine
*/
// func gosave(buf *gobuf)
// save state in Gobuf; setjmp
TEXT runtime·gosave(SB), NOSPLIT, $0-8
MOVQ buf+0(FP), AX // gobuf
LEAQ buf+0(FP), BX // caller's SP
MOVQ BX, gobuf_sp(AX)
MOVQ 0(SP), BX // caller's PC
MOVQ BX, gobuf_pc(AX)
MOVQ $0, gobuf_ret(AX)
MOVQ BP, gobuf_bp(AX)
// Assert ctxt is zero. See func save.
MOVQ gobuf_ctxt(AX), BX
TESTQ BX, BX
JZ 2(PC)
CALL runtime·badctxt(SB)
get_tls(CX)
MOVQ g(CX), BX
MOVQ BX, gobuf_g(AX)
RET
// func gogo(buf *gobuf)
// restore state from Gobuf; longjmp
TEXT runtime·gogo(SB), NOSPLIT, $16-8

17
src/runtime/asm_arm.s
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@ -206,23 +206,6 @@ TEXT runtime·asminit(SB),NOSPLIT,$0-0
* go-routine
*/
// void gosave(Gobuf*)
// save state in Gobuf; setjmp
TEXT runtime·gosave(SB),NOSPLIT|NOFRAME,$0-4
MOVW buf+0(FP), R0
MOVW R13, gobuf_sp(R0)
MOVW LR, gobuf_pc(R0)
MOVW g, gobuf_g(R0)
MOVW $0, R11
MOVW R11, gobuf_lr(R0)
MOVW R11, gobuf_ret(R0)
// Assert ctxt is zero. See func save.
MOVW gobuf_ctxt(R0), R0
CMP R0, R11
B.EQ 2(PC)
CALL runtime·badctxt(SB)
RET
// void gogo(Gobuf*)
// restore state from Gobuf; longjmp
TEXT runtime·gogo(SB),NOSPLIT,$8-4

17
src/runtime/asm_arm64.s
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@ -113,23 +113,6 @@ TEXT runtime·asminit(SB),NOSPLIT|NOFRAME,$0-0
* go-routine
*/
// void gosave(Gobuf*)
// save state in Gobuf; setjmp
TEXT runtime·gosave(SB), NOSPLIT|NOFRAME, $0-8
MOVD buf+0(FP), R3
MOVD RSP, R0
MOVD R0, gobuf_sp(R3)
MOVD R29, gobuf_bp(R3)
MOVD LR, gobuf_pc(R3)
MOVD g, gobuf_g(R3)
MOVD ZR, gobuf_lr(R3)
MOVD ZR, gobuf_ret(R3)
// Assert ctxt is zero. See func save.
MOVD gobuf_ctxt(R3), R0
CBZ R0, 2(PC)
CALL runtime·badctxt(SB)
RET
// void gogo(Gobuf*)
// restore state from Gobuf; longjmp
TEXT runtime·gogo(SB), NOSPLIT, $24-8

15
src/runtime/asm_mips64x.s
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@ -89,21 +89,6 @@ TEXT runtime·asminit(SB),NOSPLIT|NOFRAME,$0-0
* go-routine
*/
// void gosave(Gobuf*)
// save state in Gobuf; setjmp
TEXT runtime·gosave(SB), NOSPLIT|NOFRAME, $0-8
MOVV buf+0(FP), R1
MOVV R29, gobuf_sp(R1)
MOVV R31, gobuf_pc(R1)
MOVV g, gobuf_g(R1)
MOVV R0, gobuf_lr(R1)
MOVV R0, gobuf_ret(R1)
// Assert ctxt is zero. See func save.
MOVV gobuf_ctxt(R1), R1
BEQ R1, 2(PC)
JAL runtime·badctxt(SB)
RET
// void gogo(Gobuf*)
// restore state from Gobuf; longjmp
TEXT runtime·gogo(SB), NOSPLIT, $16-8

15
src/runtime/asm_mipsx.s
View File

@ -90,21 +90,6 @@ TEXT runtime·asminit(SB),NOSPLIT,$0-0
* go-routine
*/
// void gosave(Gobuf*)
// save state in Gobuf; setjmp
TEXT runtime·gosave(SB),NOSPLIT|NOFRAME,$0-4
MOVW buf+0(FP), R1
MOVW R29, gobuf_sp(R1)
MOVW R31, gobuf_pc(R1)
MOVW g, gobuf_g(R1)
MOVW R0, gobuf_lr(R1)
MOVW R0, gobuf_ret(R1)
// Assert ctxt is zero. See func save.
MOVW gobuf_ctxt(R1), R1
BEQ R1, 2(PC)
JAL runtime·badctxt(SB)
RET
// void gogo(Gobuf*)
// restore state from Gobuf; longjmp
TEXT runtime·gogo(SB),NOSPLIT,$8-4

17
src/runtime/asm_ppc64x.s
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@ -128,23 +128,6 @@ TEXT runtime·reginit(SB),NOSPLIT|NOFRAME,$0-0
* go-routine
*/
// void gosave(Gobuf*)
// save state in Gobuf; setjmp
TEXT runtime·gosave(SB), NOSPLIT|NOFRAME, $0-8
MOVD buf+0(FP), R3
MOVD R1, gobuf_sp(R3)
MOVD LR, R31
MOVD R31, gobuf_pc(R3)
MOVD g, gobuf_g(R3)
MOVD R0, gobuf_lr(R3)
MOVD R0, gobuf_ret(R3)
// Assert ctxt is zero. See func save.
MOVD gobuf_ctxt(R3), R3
CMP R0, R3
BEQ 2(PC)
BL runtime·badctxt(SB)
RET
// void gogo(Gobuf*)
// restore state from Gobuf; longjmp
TEXT runtime·gogo(SB), NOSPLIT, $16-8

15
src/runtime/asm_riscv64.s
View File

@ -297,21 +297,6 @@ TEXT runtime·mcall(SB), NOSPLIT|NOFRAME, $0-8
JALR RA, T1
JMP runtime·badmcall2(SB)
// func gosave(buf *gobuf)
// save state in Gobuf; setjmp
TEXT runtime·gosave(SB), NOSPLIT|NOFRAME, $0-8
MOV buf+0(FP), T1
MOV X2, gobuf_sp(T1)
MOV RA, gobuf_pc(T1)
MOV g, gobuf_g(T1)
MOV ZERO, gobuf_lr(T1)
MOV ZERO, gobuf_ret(T1)
// Assert ctxt is zero. See func save.
MOV gobuf_ctxt(T1), T1
BEQ T1, ZERO, 2(PC)
CALL runtime·badctxt(SB)
RET
// Save state of caller into g->sched. Smashes X31.
TEXT gosave<>(SB),NOSPLIT|NOFRAME,$0
MOV X1, (g_sched+gobuf_pc)(g)

15
src/runtime/asm_s390x.s
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@ -174,21 +174,6 @@ TEXT runtime·asminit(SB),NOSPLIT|NOFRAME,$0-0
* go-routine
*/
// void gosave(Gobuf*)
// save state in Gobuf; setjmp
TEXT runtime·gosave(SB), NOSPLIT, $-8-8
MOVD buf+0(FP), R3
MOVD R15, gobuf_sp(R3)
MOVD LR, gobuf_pc(R3)
MOVD g, gobuf_g(R3)
MOVD $0, gobuf_lr(R3)
MOVD $0, gobuf_ret(R3)
// Assert ctxt is zero. See func save.
MOVD gobuf_ctxt(R3), R3
CMPBEQ R3, $0, 2(PC)
BL runtime·badctxt(SB)
RET
// void gogo(Gobuf*)
// restore state from Gobuf; longjmp
TEXT runtime·gogo(SB), NOSPLIT, $16-8

1
src/runtime/stubs.go
View File

@ -167,7 +167,6 @@ func noescape(p unsafe.Pointer) unsafe.Pointer {
// pointer-declared arguments.
func cgocallback(fn, frame, ctxt uintptr)
func gogo(buf *gobuf)
func gosave(buf *gobuf)
//go:noescape
func jmpdefer(fv *funcval, argp uintptr)