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runtime: remove systemstack logic from adjustframe

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Remove logic for skipping some adjustframe logic for systemstack (aka
FuncID_systemstack_switch). This was introduced in 2014 by
9198ed4bd6 but doesn't seem to be needed
anymore.

Updates #59692

Change-Id: I2368d64f9bb28ced4e7f15c9b15dac7a29194389
Reviewed-on: https://go-review.googlesource.com/c/go/+/489116
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Felix Geisendörfer <felix.geisendoerfer@datadoghq.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
This commit is contained in:
Felix Geisendörfer 2023-04-26 10:02:22 +02:00 • committed by Cherry Mui
parent 6dca1a29ab
commit 47e6fd05f7
1 changed files with 0 additions and 7 deletions
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7
src/runtime/stack.go
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@ -676,13 +676,6 @@ func adjustframe(frame *stkframe, adjinfo *adjustinfo) {
adjustpointer(adjinfo, unsafe.Pointer(frame.varp))
}
if f.funcID == abi.FuncID_systemstack_switch {
// A special routine at the bottom of stack of a goroutine that does a systemstack call.
// We will allow it to be copied even though we don't
// have full GC info for it (because it is written in asm).
return
}
locals, args, objs := frame.getStackMap(&adjinfo.cache, true)
// Adjust local variables if stack frame has been allocated.