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syz-manager: expose function coverage

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THe new /funccover end point exposes the CSV function coverage.
This commit is contained in:
Dmitry Vyukov 2020-09-26 18:03:01 +02:00
parent 83fa5afaad
commit 06cecac317
1 changed files with 18 additions and 3 deletions
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21
syz-manager/html.go
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@ -42,6 +42,7 @@ func (mgr *Manager) initHTTP() {
http.HandleFunc("/file", mgr.httpFile)
http.HandleFunc("/report", mgr.httpReport)
http.HandleFunc("/rawcover", mgr.httpRawCover)
http.HandleFunc("/funccover", mgr.httpFuncCover)
http.HandleFunc("/input", mgr.httpInput)
// Browsers like to request this, without special handler this goes to / handler.
http.HandleFunc("/favicon.ico", func(w http.ResponseWriter, r *http.Request) {})
@ -210,10 +211,10 @@ func (mgr *Manager) httpCover(w http.ResponseWriter, r *http.Request) {
}
mgr.mu.Lock()
defer mgr.mu.Unlock()
mgr.httpCoverCover(w, r)
mgr.httpCoverCover(w, r, reportGenerator.DoHTML)
}
func (mgr *Manager) httpCoverCover(w http.ResponseWriter, r *http.Request) {
func (mgr *Manager) httpCoverCover(w http.ResponseWriter, r *http.Request, do func(io.Writer, []cover.Prog) error) {
var progs []cover.Prog
if sig := r.FormValue("input"); sig != "" {
inp := mgr.corpus[sig]
@ -233,7 +234,7 @@ func (mgr *Manager) httpCoverCover(w http.ResponseWriter, r *http.Request) {
})
}
}
if err := reportGenerator.DoHTML(w, progs); err != nil {
if err := do(w, progs); err != nil {
http.Error(w, fmt.Sprintf("failed to generate coverage profile: %v", err), http.StatusInternalServerError)
return
}
@ -271,6 +272,20 @@ func (mgr *Manager) httpCoverFallback(w http.ResponseWriter, r *http.Request) {
executeTemplate(w, fallbackCoverTemplate, data)
}
func (mgr *Manager) httpFuncCover(w http.ResponseWriter, r *http.Request) {
if !mgr.cfg.Cover {
http.Error(w, "coverage is not enabled", http.StatusInternalServerError)
return
}
if err := initCover(mgr.sysTarget, mgr.cfg.KernelObj, mgr.cfg.KernelSrc, mgr.cfg.KernelBuildSrc); err != nil {
http.Error(w, fmt.Sprintf("failed to generate coverage profile: %v", err), http.StatusInternalServerError)
return
}
mgr.mu.Lock()
defer mgr.mu.Unlock()
mgr.httpCoverCover(w, r, reportGenerator.DoCSV)
}
func (mgr *Manager) httpPrio(w http.ResponseWriter, r *http.Request) {
mgr.mu.Lock()
defer mgr.mu.Unlock()