cmd/link: close cpu profile

Change-Id: Ieaf1c165307a98d58c40d4d970eecfd6d74b2411
GitHub-Last-Rev: bd7271097896a4003b08c28e8ea11c6ab74077d9
GitHub-Pull-Request: golang/go#66736
Reviewed-on: https://go-review.googlesource.com/c/go/+/577416
Auto-Submit: Than McIntosh <thanm@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

diff --git a/src/cmd/link/internal/ld/main.go b/src/cmd/link/internal/ld/main.go
index 5a4d7f9451b505d78daeb0151ac79464d13829b6..c19dd2565bcc9956ba9c0da7d5ea33647f4b075e 100644 (file)
--- a/src/cmd/link/internal/ld/main.go
+++ b/src/cmd/link/internal/ld/main.go
@@ -499,7 +499,12 @@ func startProfile() {
                if err := pprof.StartCPUProfile(f); err != nil {
                        log.Fatalf("%v", err)
                }
-               AtExit(pprof.StopCPUProfile)
+               AtExit(func() {
+                       pprof.StopCPUProfile()
+                       if err = f.Close(); err != nil {
+                               log.Fatalf("error closing cpu profile: %v", err)
+                       }
+               })
        }
        if *memprofile != "" {
                if *memprofilerate != 0 {