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| author | Austin Clements <austin@google.com> | 2019-10-16 19:10:06 -0400 |
|---|---|---|
| committer | Austin Clements <austin@google.com> | 2019-11-02 21:51:14 +0000 |
| commit | a3ffb0d9eb948409c0898c6b1803401c9bc68ed4 (patch) | |
| tree | b5d9aa8849a61c16b76d4a3298cdfee195951bbe /src/runtime/preempt_amd64.s | |
| parent | 2d031dc559a720ec2c1939848a2e5de2782acd5a (diff) | |
| download | go-a3ffb0d9eb948409c0898c6b1803401c9bc68ed4.tar.gz go-a3ffb0d9eb948409c0898c6b1803401c9bc68ed4.zip | |
runtime: asynchronous preemption function for x86
This adds asynchronous preemption function for amd64 and 386. These
functions spill and restore all register state that can be used by
user Go code.
For the moment we stub out the other arches.
For #10958, #24543.
Change-Id: I6f93fabe9875f4834922a5712362e79045c00aca
Reviewed-on: https://go-review.googlesource.com/c/go/+/201759
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Diffstat (limited to 'src/runtime/preempt_amd64.s')
| -rw-r--r-- | src/runtime/preempt_amd64.s | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/runtime/preempt_amd64.s b/src/runtime/preempt_amd64.s new file mode 100644 index 0000000000..d50c2f3a51 --- /dev/null +++ b/src/runtime/preempt_amd64.s @@ -0,0 +1,79 @@ +// Code generated by mkpreempt.go; DO NOT EDIT. + +#include "go_asm.h" +#include "textflag.h" + +TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0 + PUSHQ BP + MOVQ SP, BP + // Save flags before clobbering them + PUSHFQ + // obj doesn't understand ADD/SUB on SP, but does understand ADJSP + ADJSP $368 + // But vet doesn't know ADJSP, so suppress vet stack checking + NOP SP + MOVQ AX, 0(SP) + MOVQ CX, 8(SP) + MOVQ DX, 16(SP) + MOVQ BX, 24(SP) + MOVQ SI, 32(SP) + MOVQ DI, 40(SP) + MOVQ R8, 48(SP) + MOVQ R9, 56(SP) + MOVQ R10, 64(SP) + MOVQ R11, 72(SP) + MOVQ R12, 80(SP) + MOVQ R13, 88(SP) + MOVQ R14, 96(SP) + MOVQ R15, 104(SP) + MOVUPS X0, 112(SP) + MOVUPS X1, 128(SP) + MOVUPS X2, 144(SP) + MOVUPS X3, 160(SP) + MOVUPS X4, 176(SP) + MOVUPS X5, 192(SP) + MOVUPS X6, 208(SP) + MOVUPS X7, 224(SP) + MOVUPS X8, 240(SP) + MOVUPS X9, 256(SP) + MOVUPS X10, 272(SP) + MOVUPS X11, 288(SP) + MOVUPS X12, 304(SP) + MOVUPS X13, 320(SP) + MOVUPS X14, 336(SP) + MOVUPS X15, 352(SP) + CALL ·asyncPreempt2(SB) + MOVUPS 352(SP), X15 + MOVUPS 336(SP), X14 + MOVUPS 320(SP), X13 + MOVUPS 304(SP), X12 + MOVUPS 288(SP), X11 + MOVUPS 272(SP), X10 + MOVUPS 256(SP), X9 + MOVUPS 240(SP), X8 + MOVUPS 224(SP), X7 + MOVUPS 208(SP), X6 + MOVUPS 192(SP), X5 + MOVUPS 176(SP), X4 + MOVUPS 160(SP), X3 + MOVUPS 144(SP), X2 + MOVUPS 128(SP), X1 + MOVUPS 112(SP), X0 + MOVQ 104(SP), R15 + MOVQ 96(SP), R14 + MOVQ 88(SP), R13 + MOVQ 80(SP), R12 + MOVQ 72(SP), R11 + MOVQ 64(SP), R10 + MOVQ 56(SP), R9 + MOVQ 48(SP), R8 + MOVQ 40(SP), DI + MOVQ 32(SP), SI + MOVQ 24(SP), BX + MOVQ 16(SP), DX + MOVQ 8(SP), CX + MOVQ 0(SP), AX + ADJSP $-368 + POPFQ + POPQ BP + RET |