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runtime: add reference to debugPinnerV1

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This is intended to be used by debuggers, to keep heap memory reachable
even if it isn't referenced from anywhere else.

Change-Id: I1e900e02b4fe3a188f8173cec70f8de32122489b
Reviewed-on: https://go-review.googlesource.com/c/go/+/682875
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Mark Freeman <mark@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
limeidan 2025-06-19 19:55:28 +08:00 • committed by abner chenc
parent 4ab1aec007
commit d6beda863e
1 changed files with 2 additions and 1 deletions
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3
src/runtime/asm_loong64.s
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@ -70,8 +70,9 @@ nocgo:
// start this M // start this M
JAL runtime·mstart(SB) JAL runtime·mstart(SB)
// Prevent dead-code elimination of debugCallV2, which is // Prevent dead-code elimination of debugCallV2 and debugPinnerV1, which are
// intended to be called by debuggers. // intended to be called by debuggers.
MOVV $runtime·debugPinnerV1<ABIInternal>(SB), R0
MOVV $runtime·debugCallV2<ABIInternal>(SB), R0 MOVV $runtime·debugCallV2<ABIInternal>(SB), R0
MOVV R0, 1(R0) MOVV R0, 1(R0)