all: run strace on each found reproducer

If `strace_bin` is specified, syzkaller will invoke a reproducer with it
and save the output. This should help in debugging.

If syz-manager is attached to a dashboard, upload the strace-powered output
and report.

2 files changed, 11 insertions, 0 deletions

diff --git a/pkg/mgrconfig/config.go b/pkg/mgrconfig/config.go
index c13e6f452..20a0b7b57 100644
--- a/pkg/mgrconfig/config.go
+++ b/pkg/mgrconfig/config.go
@@ -168,6 +168,11 @@ type Config struct {
 	// Regexps are matched against bug title, guilty file and maintainer emails.
 	Interests []string `json:"interests,omitempty"`
 
+	// Path to the strace binary compiled for the target architecture.
+	// If set, for each reproducer syzkaller will run it once more under strace and save
+	// the output.
+	StraceBin string `json:"strace_bin"`
+
 	// Type of virtual machine to use, e.g. "qemu", "gce", "android", "isolated", etc.
 	Type string `json:"type"`
 	// VM-type-specific parameters.
diff --git a/pkg/mgrconfig/load.go b/pkg/mgrconfig/load.go
index c9528b38a..2b49d0cbd 100644
--- a/pkg/mgrconfig/load.go
+++ b/pkg/mgrconfig/load.go
@@ -256,6 +256,12 @@ func (cfg *Config) completeBinaries() error {
 	if cfg.ExecutorBin != "" && !osutil.IsExist(cfg.ExecutorBin) {
 		return fmt.Errorf("bad config syzkaller param: can't find %v", cfg.ExecutorBin)
 	}
+	if cfg.StraceBin != "" {
+		if !osutil.IsExist(cfg.StraceBin) {
+			return fmt.Errorf("bad config param strace_bin: can't find %v", cfg.StraceBin)
+		}
+		cfg.StraceBin = osutil.Abs(cfg.StraceBin)
+	}
 	return nil
 }