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-rw-r--r--winsup/utils/strace.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/winsup/utils/strace.cc b/winsup/utils/strace.cc
index 633aa55a9..2d16b69c7 100644
--- a/winsup/utils/strace.cc
+++ b/winsup/utils/strace.cc
@@ -985,7 +985,7 @@ character #%d.\n", optarg, (int) (endptr - optarg), endptr);
error (0, "must provide a process id to toggle tracing");
if (!mask)
- mask = 1;
+ mask = _STRACE_ALL;
if (bufsize)
setvbuf (ofile, (char *) alloca (bufsize), _IOFBF, bufsize);