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runtime/cgo: use standard ABI call setg_gcc in crosscall1 on loong64

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Change-Id: Ie38583d667d579751d643b2da2aa56390b69904c
Reviewed-on: https://go-review.googlesource.com/c/go/+/652255
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
This commit is contained in:
Guoqi Chen 2025-02-25 10:50:50 +08:00 committed by abner chenc
parent 11c847e536
commit 01ba8bfe86
2 changed files with 6 additions and 5 deletions
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4
src/runtime/asm_loong64.s
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@ -656,9 +656,9 @@ TEXT runtime·setg(SB), NOSPLIT, $0-8
JAL runtime·save_g(SB)
RET
// void setg_gcc(G*); set g called from gcc with g in R19
// void setg_gcc(G*); set g called from gcc with g in R4
TEXT setg_gcc<>(SB),NOSPLIT,$0-0
MOVV R19, g
MOVV R4, g
JAL runtime·save_g(SB)
RET

7
src/runtime/cgo/gcc_loong64.S
View File

@ -34,10 +34,11 @@ crosscall1:
fst.d $f30, $r3, 136
fst.d $f31, $r3, 144
move $r18, $r4 // save R4
move $r19, $r6
// r4 = *fn, r5 = *setg_gcc, r6 = *g
move $r23, $r4 // save R4
move $r4, $r6
jirl $r1, $r5, 0 // call setg_gcc (clobbers R4)
jirl $r1, $r18, 0 // call fn
jirl $r1, $r23, 0 // call fn
ld.d $r23, $r3, 8
ld.d $r24, $r3, 16