runtime: gdb support, fix pretty printing of channels.
The type to cast the elements to was stolen from a field
that's no longer there.
R=rsc
CC=golang-dev
https://golang.org/cl/5143050
diff --git a/src/pkg/runtime/runtime-gdb.py b/src/pkg/runtime/runtime-gdb.py
index f815e10..ace27e6 100644
--- a/src/pkg/runtime/runtime-gdb.py
+++ b/src/pkg/runtime/runtime-gdb.py
@@ -122,8 +122,8 @@
return str(self.val.type)
def children(self):
- # see chan.c chanbuf()
- et = [x.type for x in self.val['free'].type.target().fields() if x.name == 'elem'][0]
+ # see chan.c chanbuf(). et is the type stolen from hchan<T>::recvq->first->elem
+ et = [x.type for x in self.val['recvq']['first'].type.target().fields() if x.name == 'elem'][0]
ptr = (self.val.address + 1).cast(et.pointer())
for i in range(self.val["qcount"]):
j = (self.val["recvx"] + i) % self.val["dataqsiz"]
