runtime: enable the exectracer2 experiment by default

Fixes #60773.

Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-linux-amd64-longtest-race
Change-Id: Ice3fd4577d58ce593611144242f2cba99c9d2ecb
Reviewed-on: https://go-review.googlesource.com/c/go/+/540778
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>

diff --git a/src/internal/buildcfg/exp.go b/src/internal/buildcfg/exp.go
index 75ed7b2459a9e972bc8fe0d67e8ef3422a3dfa4e..a45cfaf862ca2f5dc23dee17458a4bb0dff1841f 100644 (file)
--- a/src/internal/buildcfg/exp.go
+++ b/src/internal/buildcfg/exp.go
@@ -74,6 +74,7 @@ func ParseGOEXPERIMENT(goos, goarch, goexp string) (*ExperimentFlags, error) {
                RegabiArgs:       regabiSupported,
                CoverageRedesign: true,
                AllocHeaders:     true,
+               ExecTracer2:      true,
        }
 
        // Start with the statically enabled set of experiments.