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syz-fuzzer: fix testing when shmem is not used

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We get program output info only if shmem is used.
Output info over pipes is not implemented.
So don't fail when we got nothing.
This commit is contained in:
Dmitry Vyukov 2018-06-26 18:59:39 +02:00
parent eecefab32c
commit ecbe6d99d3
1 changed files with 6 additions and 0 deletions
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6
syz-fuzzer/testing.go
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@ -128,6 +128,7 @@ func checkSimpleProgram(args *checkArgs) error {
if err != nil {
return fmt.Errorf("failed to create ipc env: %v", err)
}
defer env.Close()
p := args.target.GenerateSimpleProg()
output, info, failed, hanged, err := env.Exec(args.ipcExecOpts, p)
if err != nil {
@ -139,6 +140,11 @@ func checkSimpleProgram(args *checkArgs) error {
if failed {
return fmt.Errorf("program failed:\n%s", output)
}
if args.ipcConfig.Flags&ipc.FlagUseShmem == 0 {
// Output is currently only supported via shmem.
// So if we are using pipes, we won't get any info.
return nil
}
if len(info) == 0 {
return fmt.Errorf("no calls executed:\n%s", output)
}