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-rw-r--r--executor/common_ext.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/executor/common_ext.h b/executor/common_ext.h
index 4f6e7491a..6485852ef 100644
--- a/executor/common_ext.h
+++ b/executor/common_ext.h
@@ -4,3 +4,6 @@
// This file is included into executor and C reproducers and can be used to add
// non-mainline pseudo-syscalls w/o changing any other files.
// These syscalls should start with syz_ext_.
+
+// This file can also define SYZ_HAVE_SETUP_EXT to 1 and provide
+// void setup_ext() function that will be called during VM setup.