runtime, syscall: add calls to msan functions
Add explicit memory sanitizer instrumentation to the runtime and syscall
packages. The compiler does not instrument the runtime package. It
does instrument the syscall package, but we need to add a couple of
cases that it can't see.
Change-Id: I2d66073f713fe67e33a6720460d2bb8f72f31394
Reviewed-on: https://go-review.googlesource.com/16164
Reviewed-by: David Crawshaw <crawshaw@golang.org>
diff --git a/src/runtime/stack.go b/src/runtime/stack.go
index 1809a4d9a..e5cd094 100644
--- a/src/runtime/stack.go
+++ b/src/runtime/stack.go
@@ -364,6 +364,9 @@
if raceenabled {
racemalloc(v, uintptr(n))
}
+ if msanenabled {
+ msanmalloc(v, uintptr(n))
+ }
if stackDebug >= 1 {
print(" allocated ", v, "\n")
}
@@ -393,6 +396,9 @@
}
return
}
+ if msanenabled {
+ msanfree(v, n)
+ }
if stackCache != 0 && n < _FixedStack<<_NumStackOrders && n < _StackCacheSize {
order := uint8(0)
n2 := n
