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-rw-r--r--src/pkg/runtime/runtime.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/pkg/runtime/runtime.h b/src/pkg/runtime/runtime.h
index 2d918f4cff..e616990ccf 100644
--- a/src/pkg/runtime/runtime.h
+++ b/src/pkg/runtime/runtime.h
@@ -226,7 +226,8 @@ struct GCStats
};
struct G
{
- uintptr stackguard; // cannot move - also known to linker, libmach, runtime/cgo
+ // stackguard0 can be set to StackPreempt as opposed to stackguard
+ uintptr stackguard0; // cannot move - also known to linker, libmach, runtime/cgo
uintptr stackbase; // cannot move - also known to libmach, runtime/cgo
Defer* defer;
Panic* panic;
@@ -235,6 +236,7 @@ struct G
uintptr gcsp; // if status==Gsyscall, gcsp = sched.sp to use during gc
byte* gcpc; // if status==Gsyscall, gcpc = sched.pc to use during gc
uintptr gcguard; // if status==Gsyscall, gcguard = stackguard to use during gc
+ uintptr stackguard; // same as stackguard0, but not set to StackPreempt
uintptr stack0;
FuncVal* fnstart; // initial function
G* alllink; // on allg