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47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/*
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american fuzzy lop++ - high-performance binary-only instrumentation
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-------------------------------------------------------------------
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Originally written by Andrew Griffiths <agriffiths@google.com> and
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Michal Zalewski
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TCG instrumentation and block chaining support by Andrea Biondo
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<andrea.biondo965@gmail.com>
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QEMU 3.1.1 port, TCG thread-safety, CompareCoverage and NeverZero
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counters by Andrea Fioraldi <andreafioraldi@gmail.com>
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Copyright 2015, 2016, 2017 Google Inc. All rights reserved.
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Copyright 2019-2020 AFLplusplus Project. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at:
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http://www.apache.org/licenses/LICENSE-2.0
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This code is a shim patched into the separately-distributed source
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code of QEMU 3.1.0. It leverages the built-in QEMU tracing functionality
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to implement AFL-style instrumentation and to take care of the remaining
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parts of the AFL fork server logic.
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The resulting QEMU binary is essentially a standalone instrumentation
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tool; for an example of how to leverage it for other purposes, you can
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have a look at afl-showmap.c.
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*/
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void afl_gen_tcg_plain_call(void *func);
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void afl_gen_tcg_plain_call(void *func) {
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TCGOp *op = tcg_emit_op(INDEX_op_call);
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TCGOP_CALLO(op) = 0;
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op->args[0] = (uintptr_t)func;
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op->args[1] = 0;
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TCGOP_CALLI(op) = 0;
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}
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