3 files changed, 41 insertions, 0 deletions
diff --git a/qemu_mode/fastexit/Makefile b/qemu_mode/fastexit/Makefile
new file mode 100644
index 00000000..80a5ec48
--- /dev/null
+++ b/qemu_mode/fastexit/Makefile
@@ -0,0 +1,30 @@
+#
+# american fuzzy lop++ - fastexit
+# --------------------------------
+#
+# Written by Andrea Fioraldi <andreafioraldi@gmail.com>
+#
+# Copyright 2019-2022 Andrea Fioraldi. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+
+TARGETS=fastexit.so fastexit32.so fastexit64.so
+
+all:  $(TARGETS)
+
+fastexit.so: fastexit.c
+	@if $(CC) -fPIC -shared fastexit.c -o fastexit.so 2>/dev/null ; then echo "fastexit build success"; else echo "fastexit build failure (that's fine)"; fi
+
+fastexit32.so: fastexit.c
+	@if $(CC) -fPIC -m32 -shared fastexit.c -o fastexit32.so 2>/dev/null ; then echo "fastexit32 build success"; else echo "fastexit32 build failure (that's fine)"; fi
+
+fastexit64.so: fastexit.c
+	@if $(CC) -fPIC -m64 -shared fastexit.c -o fastexit64.so 2>/dev/null ; then echo "fastexit64 build success"; else echo "fastexit64 build failure (that's fine)"; fi
+
+clean:
+	rm -f fastexit.so
diff --git a/qemu_mode/fastexit/README.md b/qemu_mode/fastexit/README.md
new file mode 100644
index 00000000..f01340c2
--- /dev/null
+++ b/qemu_mode/fastexit/README.md
@@ -0,0 +1,5 @@
+# fastexit
+
+This library forces _exit on exit when preloaded to gain speed.
+
+Gives speed on complex tarets like Android or Wine.
diff --git a/qemu_mode/fastexit/fastexit.c b/qemu_mode/fastexit/fastexit.c
new file mode 100644
index 00000000..44141af1
--- /dev/null
+++ b/qemu_mode/fastexit/fastexit.c
@@ -0,0 +1,6 @@
+#include <unistd.h>
+#include <stdlib.h>
+
+void exit(int status) {
+  _exit(status);
+}