diff options
Diffstat (limited to 'pkg/csource')
| -rw-r--r-- | pkg/csource/csource.go | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/pkg/csource/csource.go b/pkg/csource/csource.go index 69be3ff2a..49431f655 100644 --- a/pkg/csource/csource.go +++ b/pkg/csource/csource.go @@ -247,7 +247,13 @@ func (ctx *context) emitCall(w *bytes.Buffer, call prog.ExecCall, ci int, haveCo } fmt.Fprintf(w, ");\n") if trace { - fmt.Fprintf(w, "\tprintf(\"### call=%v errno=%%u\\n\", res == -1 ? errno : 0);\n", ci) + cast := "" + if !native && !strings.HasPrefix(callName, "syz_") { + // Potentially we casted a function returning int to a function returning long. + // So instead of long -1 we can get 0x00000000ffffffff. Sign extend it to long. + cast = "(long)(int)" + } + fmt.Fprintf(w, "\tprintf(\"### call=%v errno=%%u\\n\", %vres == -1 ? errno : 0);\n", ci, cast) } } |