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-rw-r--r--src/pkg/runtime/chan.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/pkg/runtime/chan.c b/src/pkg/runtime/chan.c
index a15b5d0d1a..32995c6ddd 100644
--- a/src/pkg/runtime/chan.c
+++ b/src/pkg/runtime/chan.c
@@ -33,6 +33,8 @@ struct WaitQ
SudoG* last;
};
+// The garbage collector is assuming that Hchan can only contain pointers into the stack
+// and cannot contain pointers into the heap.
struct Hchan
{
uintgo qcount; // total data in the q
@@ -48,6 +50,8 @@ struct Hchan
Lock;
};
+uint32 runtime·Hchansize = sizeof(Hchan);
+
// Buffer follows Hchan immediately in memory.
// chanbuf(c, i) is pointer to the i'th slot in the buffer.
#define chanbuf(c, i) ((byte*)((c)+1)+(uintptr)(c)->elemsize*(i))
@@ -112,6 +116,7 @@ runtime·makechan_c(ChanType *t, int64 hint)
c->elemalg = elem->alg;
c->elemalign = elem->align;
c->dataqsiz = hint;
+ runtime·settype(c, (uintptr)t | TypeInfo_Chan);
if(debug)
runtime·printf("makechan: chan=%p; elemsize=%D; elemalg=%p; elemalign=%d; dataqsiz=%D\n",